Aadi Bioscience Announces Closing of Merger with Aerpio Pharmaceuticals and $155M Private Placement

On August 26, 2021 Aadi Bioscience, Inc. ("Aadi") (Nasdaq: AADI), a clinical-stage biopharmaceutical company focusing on precision therapies for genetically-defined cancers with alterations in mTOR pathway genes, reported the closing of its previously announced merger with Aerpio Pharmaceuticals, Inc. (previously traded on the Nasdaq Capital Market under "ARPO") (Press release, Aadi Bioscience, AUG 26, 2021, View Source [SID1234586920]).

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The combined, publicly traded company will focus on the advancement, expansion and commercialization of Aadi’s clinical stage pipeline, including Aadi’s lead program for its nanoparticle albumin-bound mTOR inhibitor, FYARRO (sirolimus albumin-bound nanoparticles for injectable suspension, nab-sirolimus ABI-009), an mTOR inhibitor bound to human albumin. Shares of the combined company, which is operating under the name Aadi Bioscience, Inc. will commence trading on the Nasdaq Global Select Market under the ticker symbol "AADI" on August 27, 2021.

Neil Desai, Ph.D., Chief Executive Officer of the new combined company, stated, "Today’s news represents an important inflection point for Aadi and the development of FYARRO. The completion of the merger, and now becoming a public entity, allows us to take the next step toward commercialization of our pipeline. As we approach our PDUFA date for FYARRO for the treatment of patients with PEComa and prepare to initiate a registrational trial in patients with tumors harboring TSC1 and TSC2 inactivating alterations by year-end, we believe that we are optimally positioned, and look forward to advancing FYARRO to help patients with genetically-driven cancers."

Aadi’s registration trial of FYARRO in advanced malignant PEComa (the AMPECT trial) demonstrated meaningful clinical efficacy in malignant PEComa1, a type of cancer with the highest known alteration rate of TSC1 or TSC2 genes. FYARRO has received Breakthrough Therapy, Fast-Track and Orphan Designations from the U.S. Food and Drug Administration (FDA). A rolling New Drug Application (NDA) submission was completed in May 2021 for this indication and the FDA accepted the NDA in July 2021 and granted Aadi Priority Review status with a Prescription Drug User Fee Act (PDUFA) target action date of November 26, 2021.

About the Merger and Concurrent PIPE Financing

Concurrent to the closing of the merger, the combined company also closed the previously announced $155 million Private Investment in Public Equity (PIPE) financing of its common stock. The PIPE Financing was led by Acuta Capital Partners and KVP Capital and included Avoro Capital Advisors; Avoro Ventures; Venrock Healthcare Capital Partners; BVF Partners, L.P.; Vivo Capital; Alta Bioequities, L.P.; Rock Springs Capital; RTW Investments, LP; Acorn Bioventures; and Serrado Capital LLC as well as other undisclosed institutional investors. Proceeds from the PIPE financing are expected to be used for the commercialization of FYARRO in advanced malignant PEComa, a planned tumor-agnostic registrational trial in solid tumors harboring inactivating alterations in the mTOR pathway genes TSC1 and TSC2 expected to be initiated by the end of 2021 and ongoing studies and general operating expenses.

Effective as of the merger close, Aadi has approximately $170 million in cash and cash equivalents and an expected runway into 2024.

On August 26, 2021, and in connection with the closing of the merger, Aerpio effected a 1-for-15 reverse stock split. All issued and outstanding shares of common stock of Aerpio were subject to the reverse stock split. Upon completion of the merger, taking into consideration the reverse stock split and the exchange ratio, the combined company has approximately 20.8 million shares of common stock outstanding with pre-merger Aadi stockholders collectively owning or holding rights to acquire approximately 29.2% of the combined company, on a fully-diluted basis, pre-merger Aerpio stockholders collectively owning or holding rights to acquire approximately 15.2% of the combined company, on a fully-diluted basis, and the PIPE Investors collectively owning approximately 55.6% of the combined company, on a fully-diluted basis.

Immediately prior to the effective time of the merger, Aerpio distributed a non-transferable contingent value right (a "CVR") to Aerpio shareholders that became effective immediately prior to the time of the merger, entitling CVR holders to receive net proceeds received by Aerpio, if any, associated with Aerpio’s legacy assets. The terms and conditions of the CVRs are pursuant to a CVR Agreement entered into prior to the closing the merger. The CVRs are not transferable, except in certain limited circumstances as provided in the CVR Agreement, are not certificated or evidenced by any instrument and are not registered with the Securities and Exchange Commission (the "SEC") or listed for trading on any exchange.

Additional information about the transaction will be provided in a Current Report on Form 8-K that will be filed by Aadi with the SEC and will be available at View Source

Jefferies LLC; Cowen and Company, LLC; and Piper Sandler & Co. served as placement agents in the private placement. Perella Weinberg Partners LP and Piper Sandler & Co. served as financial advisors to Aadi for the transaction and Wilson Sonsini Goodrich & Rosati, P.C. served as legal counsel to Aadi. Ladenburg Thalmann & Co. Inc. acted as financial advisor to Aerpio for the transaction and Goodwin Procter LLP served as legal counsel to Aerpio.

Management and Organization

Neil Desai, Ph.D., President and Chief Executive Officer and Director of Aadi will continue to lead the combined company along with the Aadi management team following this transaction. In addition to Dr. Desai, the Board of Directors will include pre-merger Aadi Board member Rick Maroun, General Counsel & Partner, Legal and Operations at Frazier Healthcare Partners. In addition, Lance Thibault, Managing Director at Danforth Advisors, LLC ("Danforth"), was appointed as interim Chief Financial Officer of the combined company. Mr. Thibault has over 30 years of experience as a life science CFO and senior executive.

Upon the closing of the merger, Caley Castelein, M.D. and Anupam Dalal, M.D., former members of the Aerpio Board of Directors, will continue on the combined company’s Board of Directors.

Also concurrent with the closing of the merger, Aadi’s pre-merger board observer, Karin Hehenberger M.D., Ph.D., has been appointed to the combined company’s board. Dr. Hehenberger brings extensive industry knowledge and medical and life sciences expertise to the combined company’s Board. Dr. Hehenberger currently serves as Chief Executive Officer of Lyfebulb, Inc., a patient engagement platform, and previously served in various roles for Coronado Biosciences, Inc. (now Fortress Biotech, Inc.), including Senior Vice President of Scientific Affairs and, most recently, Chief Medical Officer, and several management positions, including as Vice President, Metabolics Strategy and Business Development, at Johnson & Johnson.

In addition, Behzad Aghazadeh, Ph.D. has been appointed to the combined company’s board. Dr. Aghazadeh brings more than 20 years of experience in the biopharmaceutical industry, including more than 15 years as an institutional investor and previously six years at Booz Allen as a general management consultant to senior executive teams in the healthcare sector. Dr. Aghazadeh currently is the Managing Partner and Portfolio Manager of Avoro Capital Advisors, a global life sciences investment firm with a focus on supporting emerging biotechnology companies. He previously served as Executive Chairman of the Board of Directors of Immunomedics, Inc., a publicly traded biopharmaceutical company (now a subsidiary of Gilead Sciences, Inc.).

Merck’s KEYTRUDA® (pembrolizumab) Receives Two New Approvals in Japan

On August 26, 2021 Merck (NYSE: MRK), known as MSD outside the United States and Canada, reported that KEYTRUDA, Merck’s anti-PD-1 therapy, has received two new approvals from the Japan Pharmaceuticals and Medical Devices Agency (PMDA) (Press release, Merck & Co, AUG 26, 2021, View Source [SID1234586909]). KEYTRUDA is approved for the treatment of patients with PD-L1-positive, hormone receptor-negative and human epidermal growth factor receptor 2 (HER2)-negative, inoperable or recurrent breast cancer, based on the results of the Phase 3 KEYNOTE-355 trial. Additionally, KEYTRUDA as a monotherapy is approved for the treatment of patients with unresectable, advanced or recurrent high microsatellite instability (MSI-H) colorectal cancer, based on results of the Phase 3 KEYNOTE-177 trial. With these approvals, KEYTRUDA has 15 authorized uses in Japan, including indications in nine tumor types as well as MSI-H tumors.

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"We are pleased to offer two potential new treatment options with KEYTRUDA for patients in Japan based on compelling data from our clinical trial program," said Dr. Roy Baynes, senior vice president and head of global clinical development, chief medical officer, Merck Research Laboratories. "KEYTRUDA has now been approved across nine tumor types as well as MSI-H tumors in Japan, underscoring our commitment to advancing cancer care."

"These approvals further demonstrate that KEYTRUDA and KEYTRUDA-based combinations have the potential to help certain patients in Japan who are facing cancers," said Kyle Tattle, president, MSD Japan. "The prevalence of breast and colorectal cancer is particularly high in Japan, and we are committed to working with the government so that patients have access to these immunotherapy treatment options."

KEYTRUDA Approved for the Treatment of Patients With PD-L1-Positive, Hormone Receptor-Negative and HER2-Negative, Inoperable or Recurrent Breast Cancer

The approval of KEYTRUDA for the treatment of patients with PD-L1-positive, hormone receptor-negative and HER2-negative, inoperable or recurrent breast cancer is based on results from the KEYNOTE-355 trial, in which KEYTRUDA in combination with chemotherapy – paclitaxel (pac), paclitaxel protein-bound (commonly known as nab-paclitaxel) or gemcitabine (gem) and carboplatin (carbo) – demonstrated a statistically significant improvement in the primary endpoint of progression-free survival (PFS) for patients with metastatic triple-negative breast cancer (TNBC) whose tumors expressed PD-L1 (Combined Positive Score [CPS] ≥10). KEYTRUDA in combination with chemotherapy (pac, nab-paclitaxel or gem/carbo) reduced the risk of disease progression or death by 35% (HR=0.65 [95% CI, 0.49, 0.86]; p=0.0012), with a median PFS of 9.7 months (95% CI, 7.6-11.3) versus 5.6 months (95% CI, 5.3-7.5), versus the same chemotherapy regimens alone in these patients. Overall survival results from KEYNOTE-355 will be presented at an upcoming medical meeting.

The Japanese package insert notes that in KEYNOTE-355, adverse reactions were observed in 212 patients (96.8%) out of the safety analysis set of 219 patients with positive PD-L1 (CPS≥10) (including 19 out of 19 Japanese patients) receiving KEYTRUDA at a dose of 200 mg every three weeks. The most common adverse reactions (≥20%) were anemia in 107 patients (48.9%), nausea in 90 patients (41.1%), neutropenia in 87 patients (39.7%), alopecia in 76 patients (34.7%), fatigue in 64 patients (29.2%), neutrophil count decreased in 52 patients (23.7%), diarrhea in 48 patients (21.9%), increased in 47 patients (21.5%) and vomiting in 44 patients (20.1%).

Triple-negative breast cancer is a type of breast cancer that tests negative for estrogen hormone receptors, progesterone hormone receptors and excess HER2 protein. It is an aggressive type of breast cancer that has a high risk for disease recurrence. Triple-negative breast cancer is known to be more prevalent in Japan than in the United States, as approximately 15% of patients with breast cancer in Japan are diagnosed with TNBC. Breast cancer is the most commonly diagnosed cancer in women in Japan, with more than 94,000 people diagnosed in 2020.

KEYTRUDA Approved for the Treatment of Patients With Unresectable, Advanced or Recurrent MSI-H Colorectal Cancer

The approval of KEYTRUDA as a monotherapy for the treatment of patients with unresectable, advanced or recurrent MSI-H colorectal cancer is based on results from the KEYNOTE-177 trial, in which KEYTRUDA significantly reduced the risk of disease progression or death by 40% (HR=0.60 [95% CI, 0.45-0.80; p=0.0002) and doubled median PFS (16.5 months [95% CI, 5.4-32.4] versus 8.2 months [95% CI, 6.1-10.2]) compared with chemotherapy agents, a current standard of care. The most common adverse reactions reported for KEYTRUDA in KEYNOTE-177 were consistent with that observed in previously reported studies of KEYTRUDA as a single agent.

Colorectal cancer starts in the colon or the rectum, and these cancers are referred to as colon cancer or rectal cancer depending on where the cancer starts. Colorectal cancer is the most commonly diagnosed cancer in Japan, and in 2020, it is estimated that there were nearly 157,000 cases of colorectal cancer diagnosed. MSI-H biomarkers are associated with many types of cancer, including colorectal cancer.

About KEYTRUDA (pembrolizumab) Injection, 100 mg

KEYTRUDA is an anti-programmed death receptor-1 (PD-1) therapy that works by increasing the ability of the body’s immune system to help detect and fight tumor cells. KEYTRUDA is a humanized monoclonal antibody that blocks the interaction between PD-1 and its ligands, PD-L1 and PD-L2, thereby activating T lymphocytes which may affect both tumor cells and healthy cells.

Merck has the industry’s largest immuno-oncology clinical research program. There are currently more than 1,500 trials studying KEYTRUDA across a wide variety of cancers and treatment settings. The KEYTRUDA clinical program seeks to understand the role of KEYTRUDA across cancers and the factors that may predict a patient’s likelihood of benefitting from treatment with KEYTRUDA, including exploring several different biomarkers.

Selected KEYTRUDA (pembrolizumab) Indications in the U.S.

Melanoma

KEYTRUDA is indicated for the treatment of patients with unresectable or metastatic melanoma.

KEYTRUDA is indicated for the adjuvant treatment of patients with melanoma with involvement of lymph node(s) following complete resection.

Non-Small Cell Lung Cancer

KEYTRUDA, in combination with pemetrexed and platinum chemotherapy, is indicated for the first-line treatment of patients with metastatic nonsquamous non-small cell lung cancer (NSCLC), with no EGFR or ALK genomic tumor aberrations.

KEYTRUDA, in combination with carboplatin and either paclitaxel or paclitaxel protein-bound, is indicated for the first-line treatment of patients with metastatic squamous NSCLC.

KEYTRUDA, as a single agent, is indicated for the first-line treatment of patients with NSCLC expressing PD-L1 [tumor proportion score (TPS) ≥1%] as determined by an FDA-approved test, with no EGFR or ALK genomic tumor aberrations, and is:

stage III where patients are not candidates for surgical resection or definitive chemoradiation, or
metastatic.
KEYTRUDA, as a single agent, is indicated for the treatment of patients with metastatic NSCLC whose tumors express PD-L1 (TPS ≥1%) as determined by an FDA-approved test, with disease progression on or after platinum-containing chemotherapy. Patients with EGFR or ALK genomic tumor aberrations should have disease progression on FDA-approved therapy for these aberrations prior to receiving KEYTRUDA.

Head and Neck Squamous Cell Cancer

KEYTRUDA, in combination with platinum and fluorouracil (FU), is indicated for the first-line treatment of patients with metastatic or with unresectable, recurrent head and neck squamous cell carcinoma (HNSCC).

KEYTRUDA, as a single agent, is indicated for the first-line treatment of patients with metastatic or with unresectable, recurrent HNSCC whose tumors express PD-L1 [combined positive score (CPS ≥1)] as determined by an FDA-approved test.

KEYTRUDA, as a single agent, is indicated for the treatment of patients with recurrent or metastatic HNSCC with disease progression on or after platinum-containing chemotherapy.

Classical Hodgkin Lymphoma

KEYTRUDA is indicated for the treatment of adult patients with relapsed or refractory classical Hodgkin lymphoma (cHL).

KEYTRUDA is indicated for the treatment of pediatric patients with refractory cHL, or cHL that has relapsed after 2 or more lines of therapy.

Primary Mediastinal Large B-Cell Lymphoma

KEYTRUDA is indicated for the treatment of adult and pediatric patients with refractory primary mediastinal large B-cell lymphoma (PMBCL), or who have relapsed after 2 or more prior lines of therapy. KEYTRUDA is not recommended for treatment of patients with PMBCL who require urgent cytoreductive therapy.

Urothelial Carcinoma

KEYTRUDA is indicated for the treatment of patients with locally advanced or metastatic urothelial carcinoma (mUC) who are not eligible for cisplatin-containing chemotherapy and whose tumors express PD-L1 (CPS ≥10), as determined by an FDA-approved test, or in patients who are not eligible for any platinum-containing chemotherapy regardless of PD-L1 status. This indication is approved under accelerated approval based on tumor response rate and duration of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trials.

KEYTRUDA is indicated for the treatment of patients with locally advanced or mUC who have disease progression during or following platinum-containing chemotherapy or within 12 months of neoadjuvant or adjuvant treatment with platinum-containing chemotherapy.

KEYTRUDA is indicated for the treatment of patients with Bacillus Calmette-Guerin-unresponsive, high-risk, non-muscle invasive bladder cancer (NMIBC) with carcinoma in situ with or without papillary tumors who are ineligible for or have elected not to undergo cystectomy.

Microsatellite Instability-High or Mismatch Repair Deficient Cancer

KEYTRUDA is indicated for the treatment of adult and pediatric patients with unresectable or metastatic microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) solid tumors that have progressed following prior treatment and who have no satisfactory alternative treatment options.

This indication is approved under accelerated approval based on tumor response rate and durability of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trials. The safety and effectiveness of KEYTRUDA in pediatric patients with MSI-H central nervous system cancers have not been established.

Microsatellite Instability-High or Mismatch Repair Deficient Colorectal Cancer

KEYTRUDA is indicated for the treatment of patients with unresectable or metastatic MSI-H or dMMR colorectal cancer (CRC).

Gastric Cancer

KEYTRUDA, in combination with trastuzumab, fluoropyrimidine- and platinum-containing chemotherapy, is indicated for the first-line treatment of patients with locally advanced unresectable or metastatic HER2-positive gastric or gastroesophageal junction (GEJ) adenocarcinoma.

This indication is approved under accelerated approval based on tumor response rate and durability of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trials.

Esophageal Cancer

KEYTRUDA is indicated for the treatment of patients with locally advanced or metastatic esophageal or GEJ (tumors with epicenter 1 to 5 centimeters above the GEJ) carcinoma that is not amenable to surgical resection or definitive chemoradiation either:

in combination with platinum- and fluoropyrimidine-based chemotherapy, or
as a single agent after one or more prior lines of systemic therapy for patients with tumors of squamous cell histology that express PD-L1 (CPS ≥10) as determined by an FDA-approved test.
Cervical Cancer

KEYTRUDA is indicated for the treatment of patients with recurrent or metastatic cervical cancer with disease progression on or after chemotherapy whose tumors express PD-L1 (CPS ≥1) as determined by an FDA-approved test. This indication is approved under accelerated approval based on tumor response rate and durability of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trials.

Hepatocellular Carcinoma

KEYTRUDA is indicated for the treatment of patients with hepatocellular carcinoma (HCC) who have been previously treated with sorafenib. This indication is approved under accelerated approval based on tumor response rate and durability of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trials.

Merkel Cell Carcinoma

KEYTRUDA is indicated for the treatment of adult and pediatric patients with recurrent locally advanced or metastatic Merkel cell carcinoma (MCC). This indication is approved under accelerated approval based on tumor response rate and durability of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trials.

Renal Cell Carcinoma

KEYTRUDA, in combination with axitinib, is indicated for the first-line treatment of adult patients with advanced renal cell carcinoma.

Tumor Mutational Burden-High Cancer

KEYTRUDA is indicated for the treatment of adult and pediatric patients with unresectable or metastatic tumor mutational burden-high (TMB-H) [≥10 mutations/megabase] solid tumors, as determined by an FDA-approved test, that have progressed following prior treatment and who have no satisfactory alternative treatment options. This indication is approved under accelerated approval based on tumor response rate and durability of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trials. The safety and effectiveness of KEYTRUDA in pediatric patients with TMB-H central nervous system cancers have not been established.

Cutaneous Squamous Cell Carcinoma

KEYTRUDA is indicated for the treatment of patients with recurrent or metastatic cutaneous squamous cell carcinoma (cSCC) or locally advanced cSCC that is not curable by surgery or radiation.

Triple-Negative Breast Cancer

KEYTRUDA is indicated for the treatment of patients with high-risk early-stage triple-negative breast cancer (TNBC) in combination with chemotherapy as neoadjuvant treatment, and then continued as a single agent as adjuvant treatment after surgery.

KEYTRUDA, in combination with chemotherapy, is indicated for the treatment of patients with locally recurrent unresectable or metastatic TNBC whose tumors express PD-L1 (CPS ≥10) as determined by an FDA-approved test.

Selected Important Safety Information for KEYTRUDA

Severe and Fatal Immune-Mediated Adverse Reactions

KEYTRUDA is a monoclonal antibody that belongs to a class of drugs that bind to either the PD-1 or the PD-L1, blocking the PD-1/PD-L1 pathway, thereby removing inhibition of the immune response, potentially breaking peripheral tolerance and inducing immune-mediated adverse reactions. Immune-mediated adverse reactions, which may be severe or fatal, can occur in any organ system or tissue, can affect more than one body system simultaneously, and can occur at any time after starting treatment or after discontinuation of treatment. Important immune-mediated adverse reactions listed here may not include all possible severe and fatal immune-mediated adverse reactions.

Monitor patients closely for symptoms and signs that may be clinical manifestations of underlying immune-mediated adverse reactions. Early identification and management are essential to ensure safe use of anti–PD-1/PD-L1 treatments. Evaluate liver enzymes, creatinine, and thyroid function at baseline and periodically during treatment. For patients with TNBC treated with KEYTRUDA in the neoadjuvant setting, monitor blood cortisol at baseline, prior to surgery, and as clinically indicated. In cases of suspected immune-mediated adverse reactions, initiate appropriate workup to exclude alternative etiologies, including infection. Institute medical management promptly, including specialty consultation as appropriate.

Withhold or permanently discontinue KEYTRUDA depending on severity of the immune-mediated adverse reaction. In general, if KEYTRUDA requires interruption or discontinuation, administer systemic corticosteroid therapy (1 to 2 mg/kg/day prednisone or equivalent) until improvement to Grade 1 or less. Upon improvement to Grade 1 or less, initiate corticosteroid taper and continue to taper over at least 1 month. Consider administration of other systemic immunosuppressants in patients whose adverse reactions are not controlled with corticosteroid therapy.

Immune-Mediated Pneumonitis

KEYTRUDA can cause immune-mediated pneumonitis. The incidence is higher in patients who have received prior thoracic radiation. Immune-mediated pneumonitis occurred in 3.4% (94/2799) of patients receiving KEYTRUDA, including fatal (0.1%), Grade 4 (0.3%), Grade 3 (0.9%), and Grade 2 (1.3%) reactions. Systemic corticosteroids were required in 67% (63/94) of patients. Pneumonitis led to permanent discontinuation of KEYTRUDA in 1.3% (36) and withholding in 0.9% (26) of patients. All patients who were withheld reinitiated KEYTRUDA after symptom improvement; of these, 23% had recurrence. Pneumonitis resolved in 59% of the 94 patients.

Pneumonitis occurred in 8% (31/389) of adult patients with cHL receiving KEYTRUDA as a single agent, including Grades 3-4 in 2.3% of patients. Patients received high-dose corticosteroids for a median duration of 10 days (range: 2 days to 53 months). Pneumonitis rates were similar in patients with and without prior thoracic radiation. Pneumonitis led to discontinuation of KEYTRUDA in 5.4% (21) of patients. Of the patients who developed pneumonitis, 42% interrupted KEYTRUDA, 68% discontinued KEYTRUDA, and 77% had resolution.

Immune-Mediated Colitis

KEYTRUDA can cause immune-mediated colitis, which may present with diarrhea. Cytomegalovirus infection/reactivation has been reported in patients with corticosteroid-refractory immune-mediated colitis. In cases of corticosteroid-refractory colitis, consider repeating infectious workup to exclude alternative etiologies. Immune-mediated colitis occurred in 1.7% (48/2799) of patients receiving KEYTRUDA, including Grade 4 (<0.1%), Grade 3 (1.1%), and Grade 2 (0.4%) reactions. Systemic corticosteroids were required in 69% (33/48); additional immunosuppressant therapy was required in 4.2% of patients. Colitis led to permanent discontinuation of KEYTRUDA in 0.5% (15) and withholding in 0.5% (13) of patients. All patients who were withheld reinitiated KEYTRUDA after symptom improvement; of these, 23% had recurrence. Colitis resolved in 85% of the 48 patients.

Hepatotoxicity and Immune-Mediated Hepatitis

KEYTRUDA as a Single Agent

KEYTRUDA can cause immune-mediated hepatitis. Immune-mediated hepatitis occurred in 0.7% (19/2799) of patients receiving KEYTRUDA, including Grade 4 (<0.1%), Grade 3 (0.4%), and Grade 2 (0.1%) reactions. Systemic corticosteroids were required in 68% (13/19) of patients; additional immunosuppressant therapy was required in 11% of patients. Hepatitis led to permanent discontinuation of KEYTRUDA in 0.2% (6) and withholding in 0.3% (9) of patients. All patients who were withheld reinitiated KEYTRUDA after symptom improvement; of these, none had recurrence. Hepatitis resolved in 79% of the 19 patients.

KEYTRUDA with Axitinib

KEYTRUDA in combination with axitinib can cause hepatic toxicity. Monitor liver enzymes before initiation of and periodically throughout treatment. Consider monitoring more frequently as compared to when the drugs are administered as single agents. For elevated liver enzymes, interrupt KEYTRUDA and axitinib, and consider administering corticosteroids as needed. With the combination of KEYTRUDA and axitinib, Grades 3 and 4 increased alanine aminotransferase (ALT) (20%) and increased aspartate aminotransferase (AST) (13%) were seen at a higher frequency compared to KEYTRUDA alone. Fifty-nine percent of the patients with increased ALT received systemic corticosteroids. In patients with ALT ≥3 times upper limit of normal (ULN) (Grades 2-4, n=116), ALT resolved to Grades 0-1 in 94%. Among the 92 patients who were rechallenged with either KEYTRUDA (n=3) or axitinib (n=34) administered as a single agent or with both (n=55), recurrence of ALT ≥3 times ULN was observed in 1 patient receiving KEYTRUDA, 16 patients receiving axitinib, and 24 patients receiving both. All patients with a recurrence of ALT ≥3 ULN subsequently recovered from the event.

Immune-Mediated Endocrinopathies

Adrenal Insufficiency

KEYTRUDA can cause primary or secondary adrenal insufficiency. For Grade 2 or higher, initiate symptomatic treatment, including hormone replacement as clinically indicated. Withhold KEYTRUDA depending on severity. Adrenal insufficiency occurred in 0.8% (22/2799) of patients receiving KEYTRUDA, including Grade 4 (<0.1%), Grade 3 (0.3%), and Grade 2 (0.3%) reactions. Systemic corticosteroids were required in 77% (17/22) of patients; of these, the majority remained on systemic corticosteroids. Adrenal insufficiency led to permanent discontinuation of KEYTRUDA in <0.1% (1) and withholding in 0.3% (8) of patients. All patients who were withheld reinitiated KEYTRUDA after symptom improvement.

Hypophysitis

KEYTRUDA can cause immune-mediated hypophysitis. Hypophysitis can present with acute symptoms associated with mass effect such as headache, photophobia, or visual field defects. Hypophysitis can cause hypopituitarism. Initiate hormone replacement as indicated. Withhold or permanently discontinue KEYTRUDA depending on severity. Hypophysitis occurred in 0.6% (17/2799) of patients receiving KEYTRUDA, including Grade 4 (<0.1%), Grade 3 (0.3%), and Grade 2 (0.2%) reactions. Systemic corticosteroids were required in 94% (16/17) of patients; of these, the majority remained on systemic corticosteroids. Hypophysitis led to permanent discontinuation of KEYTRUDA in 0.1% (4) and withholding in 0.3% (7) of patients. All patients who were withheld reinitiated KEYTRUDA after symptom improvement.

Thyroid Disorders

KEYTRUDA can cause immune-mediated thyroid disorders. Thyroiditis can present with or without endocrinopathy. Hypothyroidism can follow hyperthyroidism. Initiate hormone replacement for hypothyroidism or institute medical management of hyperthyroidism as clinically indicated. Withhold or permanently discontinue KEYTRUDA depending on severity. Thyroiditis occurred in 0.6% (16/2799) of patients receiving KEYTRUDA, including Grade 2 (0.3%). None discontinued, but KEYTRUDA was withheld in <0.1% (1) of patients.

Hyperthyroidism occurred in 3.4% (96/2799) of patients receiving KEYTRUDA, including Grade 3 (0.1%) and Grade 2 (0.8%). It led to permanent discontinuation of KEYTRUDA in <0.1% (2) and withholding in 0.3% (7) of patients. All patients who were withheld reinitiated KEYTRUDA after symptom improvement. Hypothyroidism occurred in 8% (237/2799) of patients receiving KEYTRUDA, including Grade 3 (0.1%) and Grade 2 (6.2%). It led to permanent discontinuation of KEYTRUDA in <0.1% (1) and withholding in 0.5% (14) of patients. All patients who were withheld reinitiated KEYTRUDA after symptom improvement. The majority of patients with hypothyroidism required long-term thyroid hormone replacement. The incidence of new or worsening hypothyroidism was higher in 1185 patients with HNSCC, occurring in 16% of patients receiving KEYTRUDA as a single agent or in combination with platinum and FU, including Grade 3 (0.3%) hypothyroidism. The incidence of new or worsening hypothyroidism was higher in 389 adult patients with cHL (17%) receiving KEYTRUDA as a single agent, including Grade 1 (6.2%) and Grade 2 (10.8%) hypothyroidism.

Type 1 Diabetes Mellitus (DM), Which Can Present With Diabetic Ketoacidosis

Monitor patients for hyperglycemia or other signs and symptoms of diabetes. Initiate treatment with insulin as clinically indicated. Withhold KEYTRUDA depending on severity. Type 1 DM occurred in 0.2% (6/2799) of patients receiving KEYTRUDA. It led to permanent discontinuation in <0.1% (1) and withholding of KEYTRUDA in <0.1% (1) of patients. All patients who were withheld reinitiated KEYTRUDA after symptom improvement.

Immune-Mediated Nephritis With Renal Dysfunction

KEYTRUDA can cause immune-mediated nephritis. Immune-mediated nephritis occurred in 0.3% (9/2799) of patients receiving KEYTRUDA, including Grade 4 (<0.1%), Grade 3 (0.1%), and Grade 2 (0.1%) reactions. Systemic corticosteroids were required in 89% (8/9) of patients. Nephritis led to permanent discontinuation of KEYTRUDA in 0.1% (3) and withholding in 0.1% (3) of patients. All patients who were withheld reinitiated KEYTRUDA after symptom improvement; of these, none had recurrence. Nephritis resolved in 56% of the 9 patients.

Immune-Mediated Dermatologic Adverse Reactions

KEYTRUDA can cause immune-mediated rash or dermatitis. Exfoliative dermatitis, including Stevens-Johnson syndrome, drug rash with eosinophilia and systemic symptoms, and toxic epidermal necrolysis, has occurred with anti–PD-1/PD-L1 treatments. Topical emollients and/or topical corticosteroids may be adequate to treat mild to moderate nonexfoliative rashes. Withhold or permanently discontinue KEYTRUDA depending on severity. Immune-mediated dermatologic adverse reactions occurred in 1.4% (38/2799) of patients receiving KEYTRUDA, including Grade 3 (1%) and Grade 2 (0.1%) reactions. Systemic corticosteroids were required in 40% (15/38) of patients. These reactions led to permanent discontinuation in 0.1% (2) and withholding of KEYTRUDA in 0.6% (16) of patients. All patients who were withheld reinitiated KEYTRUDA after symptom improvement; of these, 6% had recurrence. The reactions resolved in 79% of the 38 patients.

Other Immune-Mediated Adverse Reactions

The following clinically significant immune-mediated adverse reactions occurred at an incidence of <1% (unless otherwise noted) in patients who received KEYTRUDA or were reported with the use of other anti–PD-1/PD-L1 treatments. Severe or fatal cases have been reported for some of these adverse reactions. Cardiac/Vascular: Myocarditis, pericarditis, vasculitis; Nervous System: Meningitis, encephalitis, myelitis and demyelination, myasthenic syndrome/myasthenia gravis (including exacerbation), Guillain-Barré syndrome, nerve paresis, autoimmune neuropathy; Ocular: Uveitis, iritis and other ocular inflammatory toxicities can occur. Some cases can be associated with retinal detachment. Various grades of visual impairment, including blindness, can occur. If uveitis occurs in combination with other immune-mediated adverse reactions, consider a Vogt-Koyanagi-Harada-like syndrome, as this may require treatment with systemic steroids to reduce the risk of permanent vision loss; Gastrointestinal: Pancreatitis, to include increases in serum amylase and lipase levels, gastritis, duodenitis; Musculoskeletal and Connective Tissue: Myositis/polymyositis, rhabdomyolysis (and associated sequelae, including renal failure), arthritis (1.5%), polymyalgia rheumatica; Endocrine: Hypoparathyroidism; Hematologic/Immune: Hemolytic anemia, aplastic anemia, hemophagocytic lymphohistiocytosis, systemic inflammatory response syndrome, histiocytic necrotizing lymphadenitis (Kikuchi lymphadenitis), sarcoidosis, immune thrombocytopenic purpura, solid organ transplant rejection.

Infusion-Related Reactions

KEYTRUDA can cause severe or life-threatening infusion-related reactions, including hypersensitivity and anaphylaxis, which have been reported in 0.2% of 2799 patients receiving KEYTRUDA. Monitor for signs and symptoms of infusion-related reactions. Interrupt or slow the rate of infusion for Grade 1 or Grade 2 reactions. For Grade 3 or Grade 4 reactions, stop infusion and permanently discontinue KEYTRUDA.

Complications of Allogeneic Hematopoietic Stem Cell Transplantation (HSCT)

Fatal and other serious complications can occur in patients who receive allogeneic HSCT before or after anti–PD-1/PD-L1 treatment. Transplant-related complications include hyperacute graft-versus-host disease (GVHD), acute and chronic GVHD, hepatic veno-occlusive disease after reduced intensity conditioning, and steroid-requiring febrile syndrome (without an identified infectious cause). These complications may occur despite intervening therapy between anti–PD-1/PD-L1 treatment and allogeneic HSCT. Follow patients closely for evidence of these complications and intervene promptly. Consider the benefit vs risks of using anti–PD-1/PD-L1 treatments prior to or after an allogeneic HSCT.

Increased Mortality in Patients With Multiple Myeloma

In trials in patients with multiple myeloma, the addition of KEYTRUDA to a thalidomide analogue plus dexamethasone resulted in increased mortality. Treatment of these patients with an anti–PD-1/PD-L1 treatment in this combination is not recommended outside of controlled trials.

Embryofetal Toxicity

Based on its mechanism of action, KEYTRUDA can cause fetal harm when administered to a pregnant woman. Advise women of this potential risk. In females of reproductive potential, verify pregnancy status prior to initiating KEYTRUDA and advise them to use effective contraception during treatment and for 4 months after the last dose.

Adverse Reactions

In KEYNOTE-006, KEYTRUDA was discontinued due to adverse reactions in 9% of 555 patients with advanced melanoma; adverse reactions leading to permanent discontinuation in more than one patient were colitis (1.4%), autoimmune hepatitis (0.7%), allergic reaction (0.4%), polyneuropathy (0.4%), and cardiac failure (0.4%). The most common adverse reactions (≥20%) with KEYTRUDA were fatigue (28%), diarrhea (26%), rash (24%), and nausea (21%).

In KEYNOTE-054, KEYTRUDA was permanently discontinued due to adverse reactions in 14% of 509 patients; the most common (≥1%) were pneumonitis (1.4%), colitis (1.2%), and diarrhea (1%). Serious adverse reactions occurred in 25% of patients receiving KEYTRUDA. The most common adverse reaction (≥20%) with KEYTRUDA was diarrhea (28%).

In KEYNOTE-189, when KEYTRUDA was administered with pemetrexed and platinum chemotherapy in metastatic nonsquamous NSCLC, KEYTRUDA was discontinued due to adverse reactions in 20% of 405 patients. The most common adverse reactions resulting in permanent discontinuation of KEYTRUDA were pneumonitis (3%) and acute kidney injury (2%). The most common adverse reactions (≥20%) with KEYTRUDA were nausea (56%), fatigue (56%), constipation (35%), diarrhea (31%), decreased appetite (28%), rash (25%), vomiting (24%), cough (21%), dyspnea (21%), and pyrexia (20%).

In KEYNOTE-407, when KEYTRUDA was administered with carboplatin and either paclitaxel or paclitaxel protein-bound in metastatic squamous NSCLC, KEYTRUDA was discontinued due to adverse reactions in 15% of 101 patients. The most frequent serious adverse reactions reported in at least 2% of patients were febrile neutropenia, pneumonia, and urinary tract infection. Adverse reactions observed in KEYNOTE-407 were similar to those observed in KEYNOTE-189 with the exception that increased incidences of alopecia (47% vs 36%) and peripheral neuropathy (31% vs 25%) were observed in the KEYTRUDA and chemotherapy arm compared to the placebo and chemotherapy arm in KEYNOTE-407.

In KEYNOTE-042, KEYTRUDA was discontinued due to adverse reactions in 19% of 636 patients with advanced NSCLC; the most common were pneumonitis (3%), death due to unknown cause (1.6%), and pneumonia (1.4%). The most frequent serious adverse reactions reported in at least 2% of patients were pneumonia (7%), pneumonitis (3.9%), pulmonary embolism (2.4%), and pleural effusion (2.2%). The most common adverse reaction (≥20%) was fatigue (25%).

In KEYNOTE-010, KEYTRUDA monotherapy was discontinued due to adverse reactions in 8% of 682 patients with metastatic NSCLC; the most common was pneumonitis (1.8%). The most common adverse reactions (≥20%) were decreased appetite (25%), fatigue (25%), dyspnea (23%), and nausea (20%).

In KEYNOTE-048, KEYTRUDA monotherapy was discontinued due to adverse events in 12% of 300 patients with HNSCC; the most common adverse reactions leading to permanent discontinuation were sepsis (1.7%) and pneumonia (1.3%). The most common adverse reactions (≥20%) were fatigue (33%), constipation (20%), and rash (20%).

In KEYNOTE-048, when KEYTRUDA was administered in combination with platinum (cisplatin or carboplatin) and FU chemotherapy, KEYTRUDA was discontinued due to adverse reactions in 16% of 276 patients with HNSCC. The most common adverse reactions resulting in permanent discontinuation of KEYTRUDA were pneumonia (2.5%), pneumonitis (1.8%), and septic shock (1.4%). The most common adverse reactions (≥20%) were nausea (51%), fatigue (49%), constipation (37%), vomiting (32%), mucosal inflammation (31%), diarrhea (29%), decreased appetite (29%), stomatitis (26%), and cough (22%).

In KEYNOTE-012, KEYTRUDA was discontinued due to adverse reactions in 17% of 192 patients with HNSCC. Serious adverse reactions occurred in 45% of patients. The most frequent serious adverse reactions reported in at least 2% of patients were pneumonia, dyspnea, confusional state, vomiting, pleural effusion, and respiratory failure. The most common adverse reactions (≥20%) were fatigue, decreased appetite, and dyspnea. Adverse reactions occurring in patients with HNSCC were generally similar to those occurring in patients with melanoma or NSCLC who received KEYTRUDA as a monotherapy, with the exception of increased incidences of facial edema and new or worsening hypothyroidism.

In KEYNOTE-204, KEYTRUDA was discontinued due to adverse reactions in 14% of 148 patients with cHL. Serious adverse reactions occurred in 30% of patients receiving KEYTRUDA; those ≥1% were pneumonitis, pneumonia, pyrexia, myocarditis, acute kidney injury, febrile neutropenia, and sepsis. Three patients died from causes other than disease progression: 2 from complications after allogeneic HSCT and 1 from unknown cause. The most common adverse reactions (≥20%) were upper respiratory tract infection (41%), musculoskeletal pain (32%), diarrhea (22%), and pyrexia, fatigue, rash, and cough (20% each).

In KEYNOTE-087, KEYTRUDA was discontinued due to adverse reactions in 5% of 210 patients with cHL. Serious adverse reactions occurred in 16% of patients; those ≥1% were pneumonia, pneumonitis, pyrexia, dyspnea, GVHD, and herpes zoster. Two patients died from causes other than disease progression: 1 from GVHD after subsequent allogeneic HSCT and 1 from septic shock. The most common adverse reactions (≥20%) were fatigue (26%), pyrexia (24%), cough (24%), musculoskeletal pain (21%), diarrhea (20%), and rash (20%).

In KEYNOTE-170, KEYTRUDA was discontinued due to adverse reactions in 8% of 53 patients with PMBCL. Serious adverse reactions occurred in 26% of patients and included arrhythmia (4%), cardiac tamponade (2%), myocardial infarction (2%), pericardial effusion (2%), and pericarditis (2%). Six (11%) patients died within 30 days of start of treatment. The most common adverse reactions (≥20%) were musculoskeletal pain (30%), upper respiratory tract infection and pyrexia (28% each), cough (26%), fatigue (23%), and dyspnea (21%).

In KEYNOTE-052, KEYTRUDA was discontinued due to adverse reactions in 11% of 370 patients with locally advanced or mUC. Serious adverse reactions occurred in 42% of patients; those ≥2% were urinary tract infection, hematuria, acute kidney injury, pneumonia, and urosepsis. The most common adverse reactions (≥20%) were fatigue (38%), musculoskeletal pain (24%), decreased appetite (22%), constipation (21%), rash (21%), and diarrhea (20%).

In KEYNOTE-045, KEYTRUDA was discontinued due to adverse reactions in 8% of 266 patients with locally advanced or mUC. The most common adverse reaction resulting in permanent discontinuation of KEYTRUDA was pneumonitis (1.9%). Serious adverse reactions occurred in 39% of KEYTRUDA-treated patients; those ≥2% were urinary tract infection, pneumonia, anemia, and pneumonitis. The most common adverse reactions (≥20%) in patients who received KEYTRUDA were fatigue (38%), musculoskeletal pain (32%), pruritus (23%), decreased appetite (21%), nausea (21%), and rash (20%).

In KEYNOTE-057, KEYTRUDA was discontinued due to adverse reactions in 11% of 148 patients with high-risk NMIBC. The most common adverse reaction resulting in permanent discontinuation of KEYTRUDA was pneumonitis (1.4%). Serious adverse reactions occurred in 28% of patients; those ≥2% were pneumonia (3%), cardiac ischemia (2%), colitis (2%), pulmonary embolism (2%), sepsis (2%), and urinary tract infection (2%). The most common adverse reactions (≥20%) were fatigue (29%), diarrhea (24%), and rash (24%).

Adverse reactions occurring in patients with MSI-H or dMMR CRC were similar to those occurring in patients with melanoma or NSCLC who received KEYTRUDA as a monotherapy.

In KEYNOTE-811, when KEYTRUDA was administered in combination with trastuzumab, fluoropyrimidine- and platinum-containing chemotherapy, KEYTRUDA was discontinued due to adverse reactions in 6% of 217 patients with locally advanced unresectable or metastatic HER2+ gastric or GEJ adenocarcinoma. The most common adverse reaction resulting in permanent discontinuation was pneumonitis (1.4%). In the KEYTRUDA arm versus placebo, there was a difference of ≥5% incidence between patients treated with KEYTRUDA versus standard of care for diarrhea (53% vs 44%) and nausea (49% vs 44%).

The most common adverse reactions (reported in ≥20%) in patients receiving KEYTRUDA in combination with chemotherapy were fatigue/asthenia, nausea, constipation, diarrhea, decreased appetite, rash, vomiting, cough, dyspnea, pyrexia, alopecia, peripheral neuropathy, mucosal inflammation, stomatitis, headache, weight loss, abdominal pain, arthralgia, myalgia, and insomnia.

In KEYNOTE-590, when KEYTRUDA was administered with cisplatin and fluorouracil to patients with metastatic or locally advanced esophageal or GEJ (tumors with epicenter 1 to 5 centimeters above the GEJ) carcinoma who were not candidates for surgical resection or definitive chemoradiation, KEYTRUDA was discontinued due to adverse reactions in 15% of 370 patients. The most common adverse reactions resulting in permanent discontinuation of KEYTRUDA (≥1%) were pneumonitis (1.6%), acute kidney injury (1.1%), and pneumonia (1.1%). The most common adverse reactions (≥20%) with KEYTRUDA in combination with chemotherapy were nausea (67%), fatigue (57%), decreased appetite (44%), constipation (40%), diarrhea (36%), vomiting (34%), stomatitis (27%), and weight loss (24%).

Adverse reactions occurring in patients with esophageal cancer who received KEYTRUDA as a monotherapy were similar to those occurring in patients with melanoma or NSCLC who received KEYTRUDA as a monotherapy.

In KEYNOTE-158, KEYTRUDA was discontinued due to adverse reactions in 8% of 98 patients with recurrent or metastatic cervical cancer. Serious adverse reactions occurred in 39% of patients receiving KEYTRUDA; the most frequent included anemia (7%), fistula, hemorrhage, and infections [except urinary tract infections] (4.1% each). The most common adverse reactions (≥20%) were fatigue (43%), musculoskeletal pain (27%), diarrhea (23%), pain and abdominal pain (22% each), and decreased appetite (21%).

Adverse reactions occurring in patients with HCC were generally similar to those in patients with melanoma or NSCLC who received KEYTRUDA as a monotherapy, with the exception of increased incidences of ascites (8% Grades 3-4) and immune-mediated hepatitis (2.9%). Laboratory abnormalities (Grades 3-4) that occurred at a higher incidence were elevated AST (20%), ALT (9%), and hyperbilirubinemia (10%).

Among the 50 patients with MCC enrolled in study KEYNOTE-017, adverse reactions occurring in patients with MCC were generally similar to those occurring in patients with melanoma or NSCLC who received KEYTRUDA as a monotherapy. Laboratory abnormalities (Grades 3-4) that occurred at a higher incidence were elevated AST (11%) and hyperglycemia (19%).

In KEYNOTE-426, when KEYTRUDA was administered in combination with axitinib, fatal adverse reactions occurred in 3.3% of 429 patients. Serious adverse reactions occurred in 40% of patients, the most frequent (≥1%) were hepatotoxicity (7%), diarrhea (4.2%), acute kidney injury (2.3%), dehydration (1%), and pneumonitis (1%). Permanent discontinuation due to an adverse reaction occurred in 31% of patients; KEYTRUDA only (13%), axitinib only (13%), and the combination (8%); the most common were hepatotoxicity (13%), diarrhea/colitis (1.9%), acute kidney injury (1.6%), and cerebrovascular accident (1.2%). The most common adverse reactions (≥20%) were diarrhea (56%), fatigue/asthenia (52%), hypertension (48%), hepatotoxicity (39%), hypothyroidism (35%), decreased appetite (30%), palmar-plantar erythrodysesthesia (28%), nausea (28%), stomatitis/mucosal inflammation (27%), dysphonia (25%), rash (25%), cough (21%), and constipation (21%).

Adverse reactions occurring in patients with TMB-H cancer were similar to those occurring in patients with other solid tumors who received KEYTRUDA as a single agent.

Adverse reactions occurring in patients with recurrent or metastatic cSCC or locally advanced cSCC were similar to those occurring in patients with melanoma or NSCLC who received KEYTRUDA as a monotherapy.

In KEYNOTE-522, when KEYTRUDA was administered with neoadjuvant chemotherapy (carboplatin and paclitaxel followed by doxorubicin or epirubicin and cyclophosphamide) followed by surgery and continued adjuvant treatment with KEYTRUDA as a single agent (n=778) to patients with newly diagnosed, previously untreated, high-risk early-stage TNBC, fatal adverse reactions occurred in 0.9% of patients, including 1 each of adrenal crisis, autoimmune encephalitis, hepatitis, pneumonia, pneumonitis, pulmonary embolism, and sepsis in association with multiple organ dysfunction syndrome and myocardial infarction. Serious adverse reactions occurred in 44% of patients receiving KEYTRUDA; those ≥2% were febrile neutropenia (15%), pyrexia (3.7%), anemia (2.6%), and neutropenia (2.2%). KEYTRUDA was discontinued in 20% of patients due to adverse reactions. The most common reactions (≥1%) resulting in permanent discontinuation were increased ALT (2.7%), increased AST (1.5%), and rash (1%). The most common adverse reactions (≥20%) in patients receiving KEYTRUDA were fatigue (70%), nausea (67%), alopecia (61%), rash (52%), constipation (42%), diarrhea and peripheral neuropathy (41% each), stomatitis (34%), vomiting (31%), headache (30%), arthralgia (29%), pyrexia (28%), cough (26%), abdominal pain (24%), decreased appetite (23%), insomnia (21%), and myalgia (20%).

In KEYNOTE-355, when KEYTRUDA and chemotherapy (paclitaxel, paclitaxel protein-bound, or gemcitabine and carboplatin) were administered to patients with locally recurrent unresectable or metastatic TNBC who had not been previously treated with chemotherapy in the metastatic setting (n=596), fatal adverse reactions occurred in 2.5% of patients, including cardio-respiratory arrest (0.7%) and septic shock (0.3%). Serious adverse reactions occurred in 30% of patients receiving KEYTRUDA in combination with chemotherapy; the serious reactions in ≥2% were pneumonia (2.9%), anemia (2.2%), and thrombocytopenia (2%). KEYTRUDA was discontinued in 11% of patients due to adverse reactions. The most common reactions resulting in permanent discontinuation (≥1%) were increased ALT (2.2%), increased AST (1.5%), and pneumonitis (1.2%). The most common adverse reactions (≥20%) in patients receiving KEYTRUDA in combination with chemotherapy were fatigue (48%), nausea (44%), alopecia (34%), diarrhea and constipation (28% each), vomiting and rash (26% each), cough (23%), decreased appetite (21%), and headache (20%).

Lactation

Because of the potential for serious adverse reactions in breastfed children, advise women not to breastfeed during treatment and for 4 months after the final dose.

Pediatric Use

In KEYNOTE-051, 161 pediatric patients (62 pediatric patients aged 6 months to younger than 12 years and 99 pediatric patients aged 12 years to 17 years) were administered KEYTRUDA 2 mg/kg every 3 weeks. The median duration of exposure was 2.1 months (range: 1 day to 24 months).

Adverse reactions that occurred at a ≥10% higher rate in pediatric patients when compared to adults were pyrexia (33%), vomiting (30%), leukopenia (30%), upper respiratory tract infection (29%), neutropenia (26%), headache (25%), and Grade 3 anemia (17%).

Merck’s Focus on Cancer

Our goal is to translate breakthrough science into innovative oncology medicines to help people with cancer worldwide. At Merck, the potential to bring new hope to people with cancer drives our purpose and supporting accessibility to our cancer medicines is our commitment. As part of our focus on cancer, Merck is committed to exploring the potential of immuno-oncology with one of the largest development programs in the industry across more than 30 tumor types. We also continue to strengthen our portfolio through strategic acquisitions and are prioritizing the development of several promising oncology candidates with the potential to improve the treatment of advanced cancers. For more information about our oncology clinical trials, visit www.merck.com/clinicaltrials.

Pfizer and BioNTech Announce Collaboration with Brazil’s Eurofarma to Manufacture COVID-19 Vaccine Doses for Latin America

On August 26, 2021 Pfizer Inc. (NYSE: PFE) and BioNTech SE (Nasdaq: BNTX) reported the signing of a letter of intent with Eurofarma Laboratórios SA, a Brazilian biopharmaceutical company, to manufacture COMIRNATY (COVID-19 vaccine, mRNA) (BNT162b2) for distribution within Latin America (Press release, BioNTech, AUG 26, 2021, View Source [SID1234586907]).

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Eurofarma will perform manufacturing activities within Pfizer’s and BioNTech’s global COVID-19 vaccine supply chain and manufacturing network, which will now span four continents and include more than 20 manufacturing facilities. To facilitate Eurofarma’s involvement in the process, technical transfer, on-site development, and equipment installation activities will begin immediately. Per the agreement, Eurofarma will obtain drug product from facilities in the U.S., and manufacturing of finished doses will commence in 2022. At full operational capacity, the annual production is expected to exceed 100 million finished doses annually. All doses will exclusively be distributed within Latin America.

"Everyone – regardless of financial condition, race, religion or geography – deserves access to lifesaving COVID-19 vaccines," said Albert Bourla, Chairman and Chief Executive Officer, Pfizer. "Our new collaboration with Eurofarma expands our global supply chain network to another region – helping us continue to provide fair and equitable access to our COVID-19 vaccine. We will continue to explore and pursue opportunities such as this to help ensure that vaccines are available to all who are in need."

"We have been continuously increasing the manufacturing capacity of our own facilities and included dozens of manufacturing partners into our global network. Together with Pfizer, we have delivered more than 1.3 billion doses and we plan to deliver 3 billion doses in total by the end of the year. Today’s partnership is an important step to broaden the access to vaccines in Latin America and beyond by expanding our global manufacturing network," said Ugur Sahin, M.D., CEO and Co-founder of BioNTech. "We will continue to enable people worldwide to manufacture and distribute our vaccine while ensuring the quality of the manufacturing process and the doses."

"At such a difficult time as this one, being able to share this news fills us with pride and hope. Eurofarma is about to turn 50 years old and signing this collaboration in the production of the COVID-19 vaccine represents another milestone in our trajectory. We are making available our best resources in terms of industrial capacity, technology and quality to this project, so that we can meet the contract with excellence and contribute to supplying the Latin American market," said Maurízio Billi, President, Eurofarma.

Pfizer and BioNTech select contract manufacturers using a rigorous process based on several factors: quality, compliance, safety track record, technical capability, capacity availability, highly trained workforce, project management abilities, prior working relationship, and commitment to working with flexibility through a fast-paced program.

To date, Pfizer and BioNTech have shipped more than 1.3 billion COVID-19 vaccine doses to more than 120 countries and territories in every region of the world. The companies are firmly committed to working towards equitable and affordable access for COVID-19 vaccines for all people around the world, actively working with global governments and global health partners with the aim to provide 2 billion doses to low and middle income countries in 2021 and 2022 – 1 billion each year. This includes direct supply agreements with individual country governments; an agreement to supply 500 million doses to the U.S. Government at a not-for-profit price, which the government will, in turn, donate to the African Union and the COVAX 92 Advanced Market Commitment (AMC) countries; and a direct supply agreement with COVAX for 40 million doses in 2021.

COMIRNATY, which is based on BioNTech’s proprietary mRNA technology, was developed by both BioNTech and Pfizer. BioNTech is the Marketing Authorization Holder in the United States, the European Union and the United Kingdom, and the holder of emergency use authorizations or equivalents in the United States (jointly with Pfizer), Canada and other countries. Submissions to pursue regulatory approvals in those countries where emergency use authorizations or equivalent were initially granted are planned.

U.S. Indication & Authorized Use
COMIRNATY (COVID-19 vaccine, mRNA) is an FDA-approved COVID-19 vaccine made by Pfizer for BioNTech.

It is approved as a 2-dose series for prevention of COVID-19 in individuals 16 years of age and older
It is also authorized under Emergency Use Authorization (EUA) to be administered for emergency use to:
prevent COVID-19 in individuals 12 through 15 years, and
provide a third dose to individuals 12 years of age and older who have been determined to have certain kinds of immunocompromise
The Pfizer-BioNTech COVID-19 vaccine has received EUA from FDA to:

prevent COVID-19 in individuals 12 years of age and older, and
provide a third dose to individuals 12 years of age and older who have been determined to have certain kinds of immunocompromise
The FDA-approved COMIRNATY (COVID-19 vaccine, mRNA) and the EUA-authorized Pfizer-BioNTech COVID-19 vaccine have the same formulation and can be used interchangeably to provide the COVID-19 vaccination series. An individual may be offered either COMIRNATY (COVID-19 vaccine, mRNA) or the Pfizer-BioNTech COVID-19 vaccine to prevent coronavirus disease 2019 (COVID-19) caused by SARS-CoV-2.

EUA Statement
This emergency use of the product has not been approved or licensed by FDA, but has been authorized by FDA under an Emergency Use Authorization (EUA) to prevent Coronavirus Disease 2019 (COVID-19) for use in individuals 12 years of age and older; and the emergency use of this product is only authorized for the duration of the declaration that circumstances exist justifying the authorization of emergency use of the medical product under Section 564(b)(1) of the FD&C Act unless the declaration is terminated or authorization revoked sooner.

Important Safety Information
Individuals should not get the Pfizer-BioNTech COVID-19 vaccine if they:

had a severe allergic reaction after a previous dose of this vaccine
had a severe allergic reaction to any ingredient of this vaccine
Individuals should tell the vaccination provider about all of their medical conditions, including if they:

have any allergies
have had myocarditis (inflammation of the heart muscle) or pericarditis (inflammation of the lining outside the heart)
have a fever
have a bleeding disorder or are on a blood thinner
are immunocompromised or are on a medicine that affects the immune system
are pregnant, plan to become pregnant, or are breastfeeding
have received another COVID-19 vaccine
have ever fainted in association with an injection
The vaccine may not protect everyone.

Side effects reported with the vaccine include:

There is a remote chance that the vaccine could cause a severe allergic reaction
A severe allergic reaction would usually occur within a few minutes to one hour after getting a dose of the vaccine. For this reason, vaccination providers may ask individuals to stay at the place where they received the vaccine for monitoring after vaccination
Signs of a severe allergic reaction can include difficulty breathing, swelling of the face and throat, a fast heartbeat, a bad rash all over the body, dizziness, and weakness
If an individual experiences a severe allergic reaction, they should call 9-1-1 or go to the nearest hospital
Myocarditis (inflammation of the heart muscle) and pericarditis (inflammation of the lining outside the heart) have occurred in some people who have received the vaccine. In most of these people, symptoms began within a few days following receipt of the second dose of the vaccine. The chance of having this occur is very low. Individuals should seek medical attention right away if they have any of the following symptoms after receiving the vaccine:
chest pain
shortness of breath
feelings of having a fast-beating, fluttering, or pounding heart
Side effects that have been reported with the vaccine include:
severe allergic reactions; non-severe allergic reactions such as rash, itching, hives, or swelling of the face; myocarditis (inflammation of the heart muscle); pericarditis (inflammation of the lining outside the heart); injection site pain; tiredness; headache; muscle pain; chills; joint pain; fever; injection site swelling; injection site redness; nausea; feeling unwell; swollen lymph nodes (lymphadenopathy); diarrhea; vomiting; arm pain
These may not be all the possible side effects of the vaccine. Serious and unexpected side effects may occur. The vaccine is still being studied in clinical trials. Call the vaccination provider or healthcare provider about bothersome side effects or side effects that do not go away
There is no information on the use of the vaccine with other vaccines.

Patients should always ask their healthcare providers for medical advice about adverse events. Individuals are encouraged to report negative side effects of vaccines to the US Food and Drug Administration (FDA) and the Centers for Disease Control and Prevention (CDC). Visit View Source or call 1‐800‐822‐7967. In addition, side effects can be reported to Pfizer Inc. at www.pfizersafetyreporting.com or by calling 1-800-438-1985.
Please click here for full Prescribing Information (16+ years of age). Please click here for Fact Sheet for Vaccination Providers (12+ years of age).

BeyondSpring Announces Exclusive Commercialization and Co-development Agreement with Jiangsu Hengrui Pharmaceuticals for Plinabulin in Greater China

On August 26, 2021 BeyondSpring (the "Company" or "BeyondSpring") (NASDAQ: BYSI), a global pharmaceutical company focused on the development of cancer therapeutics, and Jiangsu Hengrui Pharmaceuticals Co., Ltd. (or "Hengrui") reported an exclusive commercialization and co-development agreement in Greater China ("the Territory") for BeyondSpring’s investigational drug candidate plinabulin, a first-in-class, selective immunomodulating microtubule-binding agent (SIMBA). Plinabulin in combination with G-CSF is currently under NDA Priority Review by the U.S. Food and Drug Administration (FDA) and the China National Medical Products Administration (NMPA) for the prevention of chemotherapy-induced neutropenia (CIN) (Press release, BeyondSpring Pharmaceuticals, AUG 26, 2021, View Source [SID1234586906]). BeyondSpring recently announced positive topline Phase 3 results from its DUBLIN-3 study of plinabulin in combination with docetaxel for the treatment of 2nd and 3rd line, EGFR wild-type non-small cell lung cancer (NSCLC). BeyondSpring will still retain 100% of the global plinabulin rights outside of Greater China.

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"We are thrilled to continue executing on our global commercialization plans by entering into this partnership with Hengrui, a world-class leader in pharmaceuticals with substantial expertise in oncology research and development and deep experience in marketing in China. This landmark partnership serves as a validation from a well-respected, leading pharma for plinabulin as a ‘pipeline in a drug’," said Dr. Lan Huang, co-founder, Chair and Chief Executive Officer of BeyondSpring. "Over the past 40 years, Hengrui has successfully grown to become the largest oncology drug sales company in China, with the top-selling PD-1 inhibitor and docetaxel product, and one of the top three G-CSF products in China. With plinabulin’s potential for combination use with these agents, we believe there are significant synergies in this partnership and believe it positions plinabulin to be developed for additional indications and to accelerate and increase peak sales in China."

Dr. Lianshan Zhang, President of Global R&D and Member of the Board of Directors of Hengrui, commented, "Treatment and prevention of chemotherapy-induced hematological toxicities still represent a huge unmet medical need. We are impressed by the clear benefit brought by plinabulin for the prevention of CIN. We also are very excited about plinabulin’s positive anti-cancer benefit that was demonstrated in the DUBLIN-3 study, and the potential for plinabulin to enhance immune responses to tumors. We look forward to working with BeyondSpring to prepare the NDA filing for the NSCLC indication in China and to explore additional anti-cancer indications to benefit cancer patients in need."

Under the terms of the agreement, Wanchunbulin will grant Hengrui exclusive rights to commercialize and co-develop plinabulin in the Greater China markets, including mainland China, Hong Kong, Macau and Taiwan. Wanchunbulin will retain the manufacturing rights of plinabulin in the Territory and will book all plinabulin revenue in the Territory. Hengrui will receive a pre-determined percentage of the net sales in each quarter. Wanchunbulin will receive the equivalent of up to 1.3B RMB (est. $200M USD), including an upfront payment of 200M RMB (est. $30M USD) and regulatory and sales milestones of up to 1.1 B RMB (est. $170M USD). Hengrui will be responsible for all costs associated with commercialization of plinabulin in the Territory.

Pursuant to the terms, Wanchunbulin will be responsible for 100% of the clinical and regulatory costs for the first two indications for plinabulin: prevention of CIN and 2nd/3rd line treatment of NSCLC (EGFR wild type). Hengrui will fund 50% of the clinical development costs for additional indications for plinabulin in the Territory, with a Joint Steering Committee overseeing the clinical strategy and priorities. With deep understanding of plinabulin and its potential, Wanchunbulin will lead the protocol design and development for additional indications.

In connection with the signing of the collaboration, Hengrui will make an equity investment at 100M RMB (est. $15M USD) into the Wanchunbulin subsidiary at a pre-money valuation of 3.6B RMB (est. $560M USD).

Dr. Huang concluded, "This partnership accomplishes important strategic goals and represents a tremendous potential for optimizing the value of the plinabulin franchise. The near-term financial terms, with the upfront and milestone payments and the equity investment in our China subsidiary, strengthen our balance sheet. In addition, this creative business partnership allows us to book revenue while creating long-term value in participating in the future revenue growth of plinabulin, backed by Hengrui’s strong infrastructure with proven successful commercial track record in China. Importantly, it positions us well to continue on our path to becoming a global biopharmaceutical company, while preserving our strategic optionality in other key markets worldwide to enhance shareholder value."

About Plinabulin
Plinabulin, BeyondSpring’s lead asset, is a selective immunomodulating microtubule-binding agent (SIMBA), which is a potent antigen presenting cell (APC) inducer. It is a novel, intravenous infused, patent-protected, NDA stage asset for CIN prevention and a Phase 3 anti-cancer candidate for non-small cell lung cancer (NSCLC). Plinabulin triggers the release of the immune defense protein, GEF-H1, which leads to two distinct effects: first is a durable anticancer benefit due to the maturation of dendritic cells resulting in the activation of tumor antigen-specific T-cells to target cancer cells, and the second is early-onset of action in CIN prevention after chemotherapy by boosting the number of hematopoietic stem/progenitor cells (HSPCs). Plinabulin received Breakthrough Therapy designation from both U.S. and China FDA for the CIN prevention indication. As a "pipeline in a drug," plinabulin is being broadly studied in combination with various immuno-oncology agents that could boost the effects of the PD-1/PD-L1 antibodies and re-sensitize PD-1/PD-L1 antibody-resistant patients.

HUTCHMED Initiates a Phase Ib/II Trial of Fruquintinib in Combination with Tislelizumab in Advanced Triple Negative Breast Cancer or Advanced Endometrial Cancer

On August 26, 2021 HUTCHMED (China) Limited ("HUTCHMED") (Nasdaq/AIM: HCM; HKEX:13) has initiated a Phase Ib/II study of fruquintinib in combination with BeiGene’s tislelizumab in patients with advanced triple negative breast cancer ("TNBC") or advanced endometrial cancer ("EC") in the U.S. The first patient was dosed on August 24, 2021 (Press release, Global Virus Network, AUG 26, 2021, View Source [SID1234586904]). This trial is to explore the potential for the addition of a highly selective vascular endothelial growth factor receptor ("VEGFR") inhibitor, fruquintinib, to anti-programmed death-1 ("PD-1") antibody tislelizumab in inducing activity to immune checkpoint inhibitors.

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This is an open-label, multi-center, non-randomized study to assess the safety and efficacy of fruquintinib in combination with tislelizumab in patients with locally advanced or metastatic TNBC or advanced EC. This study will be conducted in two parts; a safety lead-in phase (Part 1) and a dose expansion phase (Part 2). The safety lead-in phase will determine safety and tolerability and the recommended Phase II dose ("RP2D") of the combination. In the dose expansion phase, the RP2D will be administered to two cohorts of patients: Cohort A – Patients with TNBC who have received prior therapy with an immune checkpoint inhibitor; and Cohort B – Patients with TNBC who have not received prior therapy with an immune checkpoint inhibitor. A cohort evaluating the combination in second line advanced EC is anticipated to open in 3Q2021. Additional details may be found at clinicaltrials.gov, using identifier NCT04577963.

About TNBC and EC

Breast cancer is a common type of cancer in the U.S., estimated to be diagnosed in over 281,000 women during 2021.1 TNBC is one of several subtypes of breast cancer, accounting for approximately 10% of newly diagnosed breast cancer cases.2 The number of women living with TNBC in the U.S. was estimated to be over 150,000 in 2018.3 PD-L1 expression is estimated to be present in approximately 20% of TNBC.4 TNBC is distinguished from the other subtypes of breast cancer in that the cancer cells do not have receptors for the hormones estrogen or progesterone (hormone receptor negative) and do not make excessive amount of the protein human epidermal growth factor receptor 2 (HER2). TNBC is more aggressive and has a worse prognosis compared to other types of breast cancer.

EC is the fourth most common type of cancer among women in the U.S., estimated to be diagnosed in over 66,000 women during 2021.5 The number of women living with EC in the U.S. was estimated to be over 800,000 in 2018. Options are limited beyond front line chemotherapy treatment for the 20-30% of women who are diagnosed at an advanced stage of the disease, as well as those who develop advanced disease that are not curable with surgery. Among patients with EC, an estimated 14% of advanced stage tumors express PD-L1, and approximately 20-30% of EC are microsatellite instability-high (MSI-H).6,7,8,9

Immune checkpoint inhibitors ("ICIs") have improved clinical outcomes in TNBC and EC, but a large proportion of patients do not respond to ICIs and initial responders eventually develop resistance. Combination therapy including VEGFR inhibition may improve the clinical efficacy of ICIs by promoting inhibition of angiogenesis in the tumor region, which can suppress tumor growth and reduce metastasis.

About Fruquintinib

Fruquintinib is a highly selective and potent oral inhibitor of VEGFR-1, -2 and -3. VEGFR inhibitors play a pivotal role in blocking tumor angiogenesis. Fruquintinib was designed to improve kinase selectivity to minimize off-target toxicities, improve tolerability and provide more consistent target coverage. The generally good tolerability in patients to date, along with fruquintinib’s low potential for drug-drug interaction based on preclinical assessment, suggests that it may also be highly suitable for combinations with other anti-cancer therapies.

HUTCHMED retains all rights to fruquintinib outside of China. In China, HUTCHMED is partnered with Eli Lilly and Company and is responsible for development and execution of all on-the-ground medical detailing, promotion and local and regional marketing.

About Fruquintinib Development

Metastatic colorectal cancer in China: Fruquintinib was approved for marketing by the China National Medical Products Administration ("NMPA") in September 2018 and commercially launched in China in late November 2018 under the brand name Elunate. It was included in the China National Reimbursement Drug List (NRDL) in January 2020. Elunate is for the treatment of patients with metastatic colorectal cancer ("CRC") who have been previously treated with fluoropyrimidine, oxaliplatin and irinotecan, including those who have previously received anti-VEGF therapy and/or anti-EGFR therapy (RAS wild type). Results of the FRESCO study, a Phase III pivotal registration trial of fruquintinib in 416 patients with metastatic CRC in China, were published in The Journal of the American Medical Association, JAMA, in June 2018 (clinicaltrials.gov identifier: NCT02314819).

Metastatic CRC in the U.S., Europe, and Japan: The U.S. Food and Drug Administration ("FDA") granted Fast Track Designation for the development of fruquintinib for the treatment of patients with metastatic CRC in June 2020. A Phase III registration study of fruquintinib for the treatment of patients with metastatic CRC, FRESCO-2, is currently underway in the U.S., Europe, Japan and Australia. Additional details of the study may be found at clinicaltrials.gov, using identifier NCT04322539. The U.S. FDA has acknowledged that the totality of the fruquintinib clinical data, including the FRESCO-2 study (if positive), the prior positive Phase III FRESCO study demonstrating improvement in overall survival that led to fruquintinib approval for metastatic CRC in China in 2018, and additional completed and ongoing supporting studies in metastatic CRC, could potentially support a New Drug Application (NDA) for the treatment of patients with advanced metastatic CRC (third-line and above). The FRESCO-2 study design was also reviewed and endorsed by The European Medicines Agency (EMA) and Japanese Pharmaceuticals and Medical Devices Agency (PMDA).

Gastric Cancer in China: In October 2017, HUTCHMED initiated the FRUTIGA study, a randomized, double-blind, Phase III trial evaluating the efficacy and safety of fruquintinib combined with paclitaxel for second-line treatment of advanced gastric or esophagogastric junction ("GEJ") adenocarcinoma. The trial is designed to enroll patients who did not respond to first-line standard chemotherapy. Subjects receive either fruquintinib combined with paclitaxel or placebo combined with paclitaxel. Patients are randomized at a 1:1 ratio and stratified according to factors such as stomach vs. GEJ tumor type and performance status. The primary efficacy endpoint is overall survival. Secondary efficacy endpoints include progression-free survival (as defined by RECIST 1.1), objective response rate, disease control rate, duration of response, and quality-of-life score (EORTC QLQ-C30, version 3.0). Biomarkers related to the antitumor activity of fruquintinib will also be explored (clinicaltrials.gov identifier: NCT03223376). In June 2020, HUTCHMED completed a planned interim data review. Based on the preset criteria, the Independent Data Monitoring Committee (IDMC) recommended that the trial continue.

Metastatic breast cancer: HUTCHMED initiated this open-label, multi-center, non-randomized, Phase Ib/II study in the U.S. to assess the safety and efficacy of fruquintinib in combination with tislelizumab in patients with advanced, refractory TNBC. This study is being conducted to investigate if the addition of fruquintinib can potentially induce activity to ICIs therapy in TNBC. Additional details of the study may be found at clinicaltrials.gov, using identifier NCT04577963. Safety and preliminary efficacy of fruquintinib were demonstrated in advanced solid tumors, including TNBC, in a phase I study conducted in China (NCT01645215) and a phase 1/1b study is ongoing in the United States (NCT03251378).

Other Immunotherapy combinations: HUTCHMED has entered into other collaboration agreements to evaluate the safety, tolerability and efficacy of fruquintinib in combination with PD-1 monoclonal antibodies, including with Tyvyt (sintilimab, IBI308, developed by Innovent Biologics, Inc.).

About Tislelizumab

Tislelizumab (BGB-A317) is a humanized IgG4 anti-PD-1 monoclonal antibody specifically designed to minimize binding to FcγR on macrophages. In pre-clinical studies, binding to FcγR on macrophages has been shown to compromise the anti-tumor activity of PD-1 antibodies through activation of antibody-dependent macrophage-mediated killing of T effector cells. Tislelizumab is the first drug from BeiGene’s immuno-oncology biologics program and is being developed internationally as a monotherapy and in combination with other therapies for the treatment of a broad array of both solid tumor and hematologic cancers.

The NMPA has granted tislelizumab approval in five indications, including full approval for first-line treatment of patients with advanced squamous non-small cell lung cancer ("NSCLC") in combination with chemotherapy and for first-line treatment of patients with advanced non-squamous NSCLC in combination with chemotherapy; and conditional approval for the treatment of patients with classical Hodgkin’s lymphoma (cHL) who received at least two prior therapies, for the treatment of patients with locally advanced or metastatic urothelial carcinoma (UC) with PD-L1 high expression whose disease progressed during or following platinum-containing chemotherapy or within 12 months of neoadjuvant or adjuvant treatment with platinum-containing chemotherapy, and for the treatment of patients with hepatocellular carcinoma (HCC) who have received at least one systemic therapy. Full approval for these indications is contingent upon results from ongoing randomized, controlled confirmatory clinical trials.

In addition, four supplemental Biologics License Applications for tislelizumab have been accepted by the Center for Drug Evaluation (CDE) of the NMPA and are under review for second- or third-line treatment of patients with locally advanced or metastatic NSCLC who progressed on prior platinum-based chemotherapy, for patients with previously treated, locally advanced unresectable or metastatic microsatellite instability-high (MSI-H) or mismatch repair-deficient (dMMR) solid tumors, for the treatment of patients with locally advanced or metastatic esophageal squamous cell carcinoma (ESCC) who have disease progression following or are intolerant to first-line standard chemotherapy, and for first-line treatment of patients with recurrent or metastatic nasopharyngeal cancer (NPC).
BeiGene has initiated or completed 17 potentially registration-enabling clinical trials in China and globally, including 13 Phase III trials and four pivotal Phase II trials.

In January 2021, BeiGene and Novartis entered into a collaboration and license agreement granting Novartis rights to develop, manufacture, and commercialize tislelizumab in North America, Europe, and Japan.

Tislelizumab is not approved for use outside of China.