Boundless Bio Presents Data on the Role of Extrachromosomal DNA (ecDNA) in Mediating Resistance to Targeted Therapies at the American Association for Cancer Research (AACR) Annual Meeting 2021

On April 10, 2021 Boundless Bio, a next-generation precision oncology company developing innovative therapeutics directed against extrachromosomal DNA (ecDNA) in aggressive cancers, reported that it will present data at the 2021 American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting (Press release, Boundless Bio, APR 10, 2021, View Source [SID1234577859]). The poster, Extrachromosomal DNA (ecDNA)-driven switching of oncogene dependency facilitates resistance to targeted therapy, is available to registered attendees today, from 8:30 a.m. – 11:59 p.m. ET. AACR (Free AACR Whitepaper) is being held virtually this year due to COVID-19.

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

"The oncology field has long known that tumors with oncogene amplification are aggressive, lead to a poor prognosis, and are very difficult to treat," said Zachary Hornby, President and Chief Executive Officer of Boundless Bio. "This study provides rationale for why patients with oncogene amplified tumors have not benefited from targeted therapies. We have demonstrated that ecDNA facilitate a powerful evasive mechanism of switching driver oncogenes when under targeted therapeutic pressure, thereby rendering targeted therapies futile against ecDNA-enabled, gene amplified cancers. Our findings underscore an urgent need and Boundless Bio’s focus in developing precision medicines targeting the underlying vulnerabilities of ecDNA."

Study Summary

Oncogenes are frequently amplified on ecDNA, circular units of DNA that are separate from chromosomes and that are highly transcribed. Because ecDNA lack centromeres, during mitosis they are passed to daughter cells asymmetrically and can thereby lead to exponential increase in copy number of genes encoded on ecDNA, which in turn facilitates tremendous genomic heterogeneity in tumor cells. The tumor heterogeneity and plasticity enabled by ecDNA can provide a mechanism of resistance for cancer cells against cancer treatment. The study set out to understand the role of ecDNA in facilitating poor responses to targeted therapies in gene amplified cancer.

The study employed the SNU16 gastric cancer model, which contains MYC and FGFR2 amplification at baseline, to characterize ecDNA content, genomic heterogeneity, and ecDNA kinetics in forming resistance to targeted therapy. Boundless Bio scientists performed a longitudinal assessment of cellular resistance and ecDNA dynamics, initially in response to the FGFR2 inhibitor, infigratinib. Upon identifying EGFR amplification on ecDNA as the dominant mechanism of resistance to infigratinib, the study subsequently also evaluated response and resistance to the EGFR inhibitor, erlotinib, delivered either sequentially or in parallel with infigratinib.

The results from the study show differential and dose-dependent resistance of SNU16 cells to infigratinib driven by the heterogeneity of oncogenes residing on ecDNA. First, low doses of infigratinib led to additional amplification of FGFR2 on ecDNA that resulted in levels of FGFR2 that were able to outcompete the drug exposure. High doses of infigratinib resulted in amplification of a new oncogene, EGFR, on ecDNA, representing an ecDNA-mediated switching of oncogene dependency from FGFR2 to EGFR. Next, upon exposing the infigratinib resistant cells (now with EGFR amplification on ecDNA) to single agent EGFR inhibitor, erlotinib, the cells again became resistant, as the emergent ecDNA-enabled EGFR dependency switched back to the original FGFR2 dependency, again via amplification on ecDNA. Lastly, the study tested dual upfront inhibition of both FGFR2 and EGFR with infigratinib and erlotinib, respectively, in previously untreated SNU16 cells. Although initial cytotoxicity was more robust than with either agent alone, the cell population inevitably became resistant. Remarkably, resistance to the up-front dual blockade was also driven by ecDNA, with amplification of various oncogenes, including MET and KRAS, on ecDNA.

This study and its results build upon and confirm previous studies that observe similar dynamics of ecDNA-driven amplification under therapeutic pressure. Such findings help explain the lack of responses and short durations associated with treatment of gene amplified cancers with targeted therapies in the clinic. The inability to a priori predict which new oncogenes would amplify on ecDNA as a mechanism of resistance to single-agent or multi-target inhibition suggest that both sequential and combination approaches of oncogene targeted therapies are suboptimal, if not largely ineffective clinical strategies for patients with ecDNA-driven cancers. These findings highlight the urgent need to take a new therapeutic approach, one that disables the underlying ecDNA machinery used by the tumor cell to drive tumor growth and resistance.

About ecDNA

Extrachromosomal DNA, or ecDNA, are distinct circular units of DNA lacking centromeres but containing functional genes, including oncogenes, that are separated from tumor cell chromosomes. ecDNA replicate within cancer cells and can be passed to daughter cells asymmetrically during cell division, thereby constituting a primary driver of focal gene amplification and copy number heterogeneity in cancer. By leveraging the plasticity afforded by ecDNA, cancer has the ability to increase or decrease copy number of select oncogenes located on ecDNA to enable survival under selective pressures, including chemotherapy, targeted therapy, immunotherapy, or radiation, making ecDNA one of cancer cells’ primary mechanisms of recurrence and treatment resistance. ecDNA are not found in healthy cells but are present in many solid tumor cancers. They are a key driver of the most aggressive and difficult-to-treat cancers, specifically those characterized by high copy number amplification of oncogenes.

ESSA Pharma Presents Preclinical Data Supporting the Therapeutic Potential of EPI-7386 at the 2021 American Association of Cancer Research (AACR) Annual Meeting

On April 10, 2021 ESSA Pharma Inc. ("ESSA" or the "Company") (Nasdaq: EPIX), a clinical-stage pharmaceutical company focused on developing novel therapies for the treatment of prostate cancer, reported new preclinical data on ESSA’s lead product candidate, EPI-7386, at the 2021 American Association of Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting, which is taking place virtually April 10-15, 2021 (Press release, ESSA, APR 10, 2021, View Source [SID1234577875]). EPI-7386 is an investigational, highly selective, oral, small molecule inhibitor of the N-terminal domain of the androgen receptor, which exhibits high potency, low metabolism and on-target specificity.

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

An e-poster presentation titled, "Comprehensive in vitro characterization of the mechanism of action of EPI-7386, an androgen receptor N-terminal inhibitor" (Abstract number: 1209) was published and available for viewing starting April 10th at 8:30 a.m. ET.

"Previously, we presented in vitro data demonstrating that EPI-7386 binds to the full-length androgen receptor, inhibits the transcription of AR-regulated genes, and physically interacts with the splice variant form AR-V7. Today, we added to these data by demonstrating that EPI-7386 can prevent the androgen receptor from binding to genomic DNA and is active against additional androgen receptor splice variants, including AR-v567es," said Dr. David R. Parkinson, President and Chief Executive Officer, ESSA Pharma, Inc. "These preclinical data suggest EPI-7386 can potentially inhibit AR related transcription, a key driver of prostate cancer, and further supports our ongoing Phase 1 dose escalation study for metastatic-castration resistant prostate cancer patients, which is now dosing patients in the 800 mg cohort."

Dr. David R. Parkinson added, "Our data also showed that EPI-7386, in combination with enzalutamide, may result in broader and deeper inhibition of the AR pathway, underscoring the potential clinical benefit of combining EPI-7386 with current standard-of-care anti-androgen therapies for prostate cancer patients at earlier stages of the disease. We have recently entered into Phase 1/2 trial clinical partnerships with Janssen to evaluate EPI-7386 in combination with apalutamide or with abiraterone acetate + prednisone, as well as with Astellas to evaluate EPI-7386 in combination with enzalutamide."

The studies highlight new information about EPI-7386 including:

In an in vitro cellular thermal shift assay (CETSA), EPI-7386 was shown to physically interact with both the full-length and the splice variant (AR-V7) form of AR.

In the cellular model CWR-R1-AD1, driven by full-length AR, EPI-7386 inhibited the transcriptional activity of the AR similar to enzalutamide. EPI-7386 was also active in inhibiting AR transcriptional activity and reducing the cell viability in the AR splice variant AR-v567es-driven cellular model CWR-R1-D567 while enzalutamide showed no activity in this model. The AR-v567es splice variant is a clinically-detected AR splice variant that is constitutively active and is unresponsive to anti-androgens.

EPI-7386 demonstrated the ability to strongly reduce binding of AR to genomic DNA in a chromatin immunoprecipitation with sequencing (ChIP-seq) assay conducted in the full-length AR driven model LNCaP.

EPI-7386 exhibits superior activity to enzalutamide in the AR-V7-driven cellular model LNCaP95 by modulating AR-driven gene expression with or without the addition of an external androgen.

In the full-length AR-driven cellular model LNCaP, EPI-7386 inhibits the androgen regulated transcriptome similar to enzalutamide but with a few notable qualitative and quantitative differences.

In the same cellular model, combination treatment of EPI-7386 with enzalutamide displayed broader and deeper inhibition of AR-associated transcriptional activity than higher doses of each single agent alone.

EPI-7386 in combination with ‘lutamide molecules, including apalutamide, enzalutamide, and darolutamide, inhibited AR-associated transcriptional activity, demonstrating broader and deeper inhibition of the AR pathway in the AR amplified VCaP cellular model.
The poster is available on AACR (Free AACR Whitepaper)’s e-poster website and on the "Events & Presentations" section of the Company’s website at www.essapharma.com.

About EPI-7386
EPI-7386 is an investigational, highly-selective, oral, small molecule inhibitor of the N-terminal domain of the androgen receptor. EPI-7386 is currently being studied in a Phase 1 clinical trial (NCT04421222) in men with metastatic castration-resistant prostate cancer ("mCRPC") whose tumors have progressed on current standard-of-care therapies. The Phase I clinical trial of EPI-7386 began in calendar Q3 of 2020 following FDA allowance of the IND and Health Canada acceptance. The U.S. FDA has granted Fast Track designation to EPI-7386 for the treatment of adult male patients with mCRPC resistant to standard-of-care treatment. ESSA retains all rights to EPI-7386 worldwide.

About Prostate Cancer
Prostate cancer is the second-most commonly diagnosed cancer among men and the fifth most common cause of male cancer death worldwide (Globocan, 2018). Adenocarcinoma of the prostate is dependent on androgen for tumor progression and depleting or blocking androgen action has been a mainstay of hormonal treatment for over six decades. Although tumors are often initially sensitive to medical or surgical therapies that decrease levels of testosterone, disease progression despite castrate levels of testosterone can lead to metastatic castration-resistant prostate cancer ("mCRPC"). The treatment of mCRPC patients has evolved rapidly over the past ten years. Despite these advances, many patients with mCRPC fail or develop resistance to existing treatments, leading to continued disease progression and limited survival rates.

Neoadjuvant Opdivo (nivolumab) Plus Chemotherapy Significantly Improves Pathologic Complete Response in Patients with Resectable Non-Small Cell Lung Cancer in Phase 3 CheckMate -816 Trial

On April 10, 2021 Bristol Myers Squibb (NYSE: BMY) reported results from the CheckMate -816 study, which showed that neoadjuvant treatment with three cycles of Opdivo (nivolumab) plus chemotherapy significantly improved pathologic complete response (pCR), a primary endpoint, compared to chemotherapy alone in patients with resectable stage Ib to IIIa non-small cell lung cancer (NSCLC) (Press release, Bristol-Myers Squibb, APR 10, 2021, View Source;816-Trial/default.aspx [SID1234577827]). In the study, 24% of patients treated with Opdivo plus chemotherapy prior to surgery achieved pCR, compared to 2.2% of patients treated with chemotherapy alone (Odds Ratio [OR] 13.94, 99% Confidence Interval [CI]: 3.49–55.75; p<0.0001), with pCR defined as no evidence of cancer cells in their resected tissue as assessed by a blinded independent pathology review. Additionally, Opdivo plus chemotherapy was well tolerated and showed consistent improvements in pCR regardless of PD-L1 expression levels, histologies or stages of disease.

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

CheckMate -816 represents the first randomized Phase 3 study to show a significant improvement in pathological response with a neoadjuvant immunotherapy combination in patients with resectable NSCLC. The first disclosure of these data will be featured in an oral presentation during the Clinical Trials Plenary Session (Abstract #5218) at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2021 on Saturday, April 10, 2021 from 12:30-12:45 p.m. EDT.

"The ultimate goal of treatment in earlier stages of cancer is to prevent the disease from coming back as we work towards a cure for these patients. Unfortunately, even when patients with resectable non-small cell lung cancer undergo surgery, the cancer returns in more than half of patients, and many then die from their disease," said Nicolas Girard, M.D., professor and head of department, medical oncology, Institut Curie. "The pathologic complete response data from CheckMate -816 give us an early indication of the potential benefit of adding nivolumab to chemotherapy as a neoadjuvant treatment in resectable non-small cell lung cancer, and we hope that these encouraging results eventually translate into improved event-free survival and overall survival for these patients."

Opdivo plus chemotherapy also demonstrated improvements in key secondary endpoints, including major pathological response (MPR). Four times as many patients treated with Opdivo plus chemotherapy vs. chemotherapy alone achieved MPR (36.9% vs 8.9%; OR 5.70, 95% CI: 3.16-10.26), meaning 10% or less of their tumor cells remained after neoadjuvant therapy.

Three cycles of Opdivo plus chemotherapy were associated with a tolerable safety profile, and no new safety signals were observed. Grade 3–4 treatment-related adverse events were reported in 34% vs. 37% in the Opdivo plus chemotherapy vs. chemotherapy alone arms, respectively. Surgery was rarely canceled due to adverse events, only affecting two patients in each arm of the trial.

Further, in this trial, more patients who received neoadjuvant Opdivo plus chemotherapy underwent surgery (83% vs. 75% with chemotherapy), showing that the addition of Opdivo did not decrease the feasibility of performing surgery. In addition, the number of patients whose tumors were completely resected (R0) was higher with Opdivo plus chemotherapy vs. chemotherapy (83% vs. 78%). Rates of surgery-related adverse events were similar between the two treatment arms.

"Opdivo-based treatment regimens have demonstrated durable survival in advanced thoracic cancers. Now, the CheckMate -816 data show that an Opdivo plus chemotherapy regimen has the potential to improve long-term clinical outcomes in earlier stages of non-small cell lung cancer," said Abderrahim Oukessou, M.D., vice president, thoracic cancers development lead, Bristol Myers Squibb. "The current results from the CheckMate -816 study add to the growing body of evidence that using immunotherapy in cancers that have not yet progressed to metastatic disease may be an important tool for physicians, with four positive Phase 3 trials with Opdivo in resectable cancers to date. We thank the patients and investigators involved in CheckMate -816 and look forward to seeing future results to understand the potential for Opdivo plus chemotherapy to improve event-free survival, the trial’s other primary endpoint, to which we remain blinded."

More broadly, in earlier stages of NSCLC, Bristol Myers Squibb and collaborators are exploring the use of immunotherapy in the neoadjuvant, adjuvant and peri-operative settings, as well as in association with chemoradiation. The scientific rationale for using immunotherapy in the neoadjuvant setting is twofold: it presents the earliest opportunity to treat cancer cells that have spread in the body without detection, and the presence of a tumor during immunotherapy treatment may enable a stronger immune response, potentially making the treatment more effective.

About CheckMate -816

CheckMate -816 is a Phase 3 randomized, open label, multi-center trial evaluating Opdivo plus chemotherapy compared to chemotherapy alone as neoadjuvant treatment in patients with resectable non-small cell lung cancer. For the primary analysis, 358 patients were randomized to receive either Opdivo 360 mg plus histology-based platinum doublet chemotherapy every three weeks for three doses, or platinum doublet chemotherapy every three weeks for three doses, followed by surgery. The primary endpoints of the trial are pathologic complete response (pCR) and event-free survival (EFS). Key secondary endpoints include overall survival (OS), major pathologic response (MPR) and time to death or distant metastases.

About Lung Cancer

Lung cancer is the leading cause of cancer deaths globally. The two main types of lung cancer are non-small cell and small cell. Non-small cell lung cancer (NSCLC) is one of the most common types of lung cancer, representing up to 84% of diagnoses. Non-metastatic cases account for the majority of NSCLC diagnoses (approximately 60%). While many non-metastatic NSCLC patients are cured by surgery, 30% to 55% develop recurrence and die of their disease despite resection, contributing to a need for treatment options administered before surgery (neoadjuvant) and/or after surgery (adjuvant) to improve long-term outcomes.

Bristol Myers Squibb: Creating a Better Future for People with Cancer

Bristol Myers Squibb is inspired by a single vision — transforming patients’ lives through science. The goal of the company’s cancer research is to deliver medicines that offer each patient a better, healthier life and to make cure a possibility. Building on a legacy across a broad range of cancers that have changed survival expectations for many, Bristol Myers Squibb researchers are exploring new frontiers in personalized medicine, and through innovative digital platforms, are turning data into insights that sharpen their focus. Deep scientific expertise, cutting-edge capabilities and discovery platforms enable the company to look at cancer from every angle. Cancer can have a relentless grasp on many parts of a patient’s life, and Bristol Myers Squibb is committed to taking actions to address all aspects of care, from diagnosis to survivorship. Because as a leader in cancer care, Bristol Myers Squibb is working to empower all people with cancer to have a better future.

About Opdivo

Opdivo is a programmed death-1 (PD-1) immune checkpoint inhibitor that is designed to uniquely harness the body’s own immune system to help restore anti-tumor immune response. By harnessing the body’s own immune system to fight cancer, Opdivo has become an important treatment option across multiple cancers.

Opdivo’s leading global development program is based on Bristol Myers Squibb’s scientific expertise in the field of Immuno-Oncology, and includes a broad range of clinical trials across all phases, including Phase 3, in a variety of tumor types. To date, the Opdivo clinical development program has treated more than 35,000 patients. The Opdivo trials have contributed to gaining a deeper understanding of the potential role of biomarkers in patient care, particularly regarding how patients may benefit from Opdivo across the continuum of PD-L1 expression.

In July 2014, Opdivo was the first PD-1 immune checkpoint inhibitor to receive regulatory approval anywhere in the world. Opdivo is currently approved in more than 65 countries, including the United States, the European Union, Japan and China. In October 2015, the Company’s Opdivo and Yervoy combination regimen was the first Immuno-Oncology combination to receive regulatory approval for the treatment of metastatic melanoma and is currently approved in more than 50 countries, including the United States and the European Union.

Indications

OPDIVO (nivolumab), as a single agent, is indicated for the treatment of patients with unresectable or metastatic melanoma.

OPDIVO (nivolumab), in combination with YERVOY (ipilimumab), is indicated for the treatment of patients with unresectable or metastatic melanoma.

OPDIVO (nivolumab), in combination with YERVOY (ipilimumab), is indicated for the first-line treatment of adult patients with metastatic non-small cell lung cancer (NSCLC) whose tumors express PD-L1 (≥1%) as determined by an FDA-approved test, with no EGFR or ALK genomic tumor aberrations.

OPDIVO (nivolumab), in combination with YERVOY (ipilimumab) and 2 cycles of platinum-doublet chemotherapy, is indicated for the first-line treatment of adult patients with metastatic or recurrent non-small cell lung cancer (NSCLC), with no EGFR or ALK genomic tumor aberrations.

OPDIVO (nivolumab) is indicated for the treatment of patients with metastatic non-small cell lung cancer (NSCLC) with progression on or after platinum-based chemotherapy. Patients with EGFR or ALK genomic tumor aberrations should have disease progression on FDA-approved therapy for these aberrations prior to receiving OPDIVO.

OPDIVO (nivolumab), in combination with YERVOY (ipilimumab), is indicated for the first-line treatment of adult patients with unresectable malignant pleural mesothelioma (MPM).

OPDIVO (nivolumab), in combination with YERVOY (ipilimumab), is indicated for the first-line treatment of patients with intermediate or poor risk advanced renal cell carcinoma (RCC).

OPDIVO (nivolumab), in combination with cabozantinib, is indicated for the first-line treatment of patients with advanced renal cell carcinoma (RCC).

OPDIVO (nivolumab) is indicated for the treatment of patients with advanced renal cell carcinoma (RCC) who have received prior anti-angiogenic therapy.

OPDIVO (nivolumab) is indicated for the treatment of adult patients with classical Hodgkin lymphoma (cHL) that has relapsed or progressed after autologous hematopoietic stem cell transplantation (HSCT) and brentuximab vedotin or after 3 or more lines of systemic therapy that includes autologous HSCT. This indication is approved under accelerated approval based on overall response rate. Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trials.

OPDIVO (nivolumab) is indicated for the treatment of patients with recurrent or metastatic squamous cell carcinoma of the head and neck (SCCHN) with disease progression on or after platinum-based therapy.

OPDIVO (nivolumab) is indicated for the treatment of patients with locally advanced or metastatic urothelial carcinoma who have disease progression during or following platinum-containing chemotherapy or have disease progression within 12 months of neoadjuvant or adjuvant treatment with platinum-containing chemotherapy. 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.

OPDIVO (nivolumab), as a single agent, is indicated for the treatment of adult and pediatric (12 years and older) patients with microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) metastatic colorectal cancer (CRC) that has progressed following treatment with a fluoropyrimidine, oxaliplatin, and irinotecan. This indication is approved under accelerated approval based on overall response rate and duration of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trials.

OPDIVO (nivolumab), in combination with YERVOY (ipilimumab), is indicated for the treatment of adults and pediatric patients 12 years and older with microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) metastatic colorectal cancer (CRC) that has progressed following treatment with a fluoropyrimidine, oxaliplatin, and irinotecan. This indication is approved under accelerated approval based on overall response rate and duration of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trials.

OPDIVO (nivolumab) 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 overall response rate and duration of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trials.

OPDIVO (nivolumab), in combination with YERVOY (ipilimumab), 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 overall response rate and duration of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trials.

OPDIVO (nivolumab) is indicated for the adjuvant treatment of patients with melanoma with involvement of lymph nodes or metastatic disease who have undergone complete resection.

OPDIVO (nivolumab) is indicated for the treatment of patients with unresectable advanced, recurrent or metastatic esophageal squamous cell carcinoma (ESCC) after prior fluoropyrimidine- and platinum-based chemotherapy.

Important Safety Information

Severe and Fatal Immune-Mediated Adverse Reactions

Immune-mediated adverse reactions listed herein may not include all possible severe and fatal immune-mediated adverse reactions.

Immune-mediated adverse reactions, which may be severe or fatal, can occur in any organ system or tissue. While immune-mediated adverse reactions usually manifest during treatment, they can also occur after discontinuation of OPDIVO or YERVOY. Early identification and management are essential to ensure safe use of OPDIVO and YERVOY. Monitor for signs and symptoms that may be clinical manifestations of underlying immune-mediated adverse reactions. Evaluate clinical chemistries including liver enzymes, creatinine, adrenocorticotropic hormone (ACTH) level, and thyroid function at baseline and periodically during treatment with OPDIVO and before each dose of YERVOY. 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 OPDIVO and YERVOY depending on severity (please see section 2 Dosage and Administration in the accompanying Full Prescribing Information). In general, if OPDIVO or YERVOY interruption or discontinuation is required, 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 immune-mediated adverse reactions are not controlled with corticosteroid therapy. Toxicity management guidelines for adverse reactions that do not necessarily require systemic steroids (e.g., endocrinopathies and dermatologic reactions) are discussed below.

Immune-Mediated Pneumonitis

OPDIVO and YERVOY can cause immune-mediated pneumonitis. The incidence of pneumonitis is higher in patients who have received prior thoracic radiation. In patients receiving OPDIVO monotherapy, immune-mediated pneumonitis occurred in 3.1% (61/1994) of patients, including Grade 4 (<0.1%), Grade 3 (0.9%), and Grade 2 (2.1%). In HCC patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg every 3 weeks, immune-mediated pneumonitis occurred in 10% (5/49) of patients. In patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg every 3 weeks, immune-mediated pneumonitis occurred in 3.9% (26/666) of patients, including Grade 3 (1.4%) and Grade 2 (2.6%). In NSCLC patients receiving OPDIVO 3 mg/kg every 2 weeks with YERVOY 1 mg/kg every 6 weeks, immune-mediated pneumonitis occurred in 9% (50/576) of patients, including Grade 4 (0.5%), Grade 3 (3.5%), and Grade 2 (4.0%). Four patients (0.7%) died due to pneumonitis.

In Checkmate 205 and 039, pneumonitis, including interstitial lung disease, occurred in 6.0% (16/266) of patients receiving OPDIVO. Immune-mediated pneumonitis occurred in 4.9% (13/266) of patients receiving OPDIVO, including Grade 3 (n=1) and Grade 2 (n=12).

Immune-Mediated Colitis

OPDIVO and YERVOY can cause immune-mediated colitis, which may be fatal. A common symptom included in the definition of colitis was diarrhea. Cytomegalovirus (CMV) 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. In patients receiving OPDIVO monotherapy, immune-mediated colitis occurred in 2.9% (58/1994) of patients, including Grade 3 (1.7%) and Grade 2 (1%). In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg every 3 weeks, immune-mediated colitis occurred in 25% (115/456) of patients, including Grade 4 (0.4%), Grade 3 (14%) and Grade 2 (8%). In patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg every 3 weeks, immune-mediated colitis occurred in 9% (60/666) of patients, including Grade 3 (4.4%) and Grade 2 (3.7%).

In a separate Phase 3 trial of YERVOY 3 mg/kg monotherapy, immune-mediated colitis occurred in 12% (62/511) of patients, including Grade 3-5 (7%) and Grade 2 (5%).

Immune-Mediated Hepatitis and Hepatotoxicity

OPDIVO and YERVOY can cause immune-mediated hepatitis. In patients receiving OPDIVO monotherapy, immune-mediated hepatitis occurred in 1.8% (35/1994) of patients, including Grade 4 (0.2%), Grade 3 (1.3%), and Grade 2 (0.4%). In patients receiving OPDIVO monotherapy in Checkmate 040, immune-mediated hepatitis requiring systemic corticosteroids occurred in 5% (8/154) of patients. In patients receiving OPDIVO 1 mg/ kg with YERVOY 3 mg/kg every 3 weeks, immune-mediated hepatitis occurred in 15% (70/456) of patients, including Grade 4 (2.4%), Grade 3 (11%), and Grade 2 (1.8%). In patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg every 3 weeks, immune-mediated hepatitis occurred in 7% (48/666) of patients, including Grade 4 (1.2%), Grade 3 (4.9%), and Grade 2 (0.4%).

In a separate Phase 3 trial of YERVOY 3 mg/kg monotherapy, immune-mediated hepatitis occurred in 4.1% (21/511) of patients, including Grade 3-5 (1.6%) and Grade 2 (2.5%).

OPDIVO in combination with cabozantinib can cause hepatic toxicity with higher frequencies of Grade 3 and 4 ALT and AST elevations compared to OPDIVO alone. Consider more frequent monitoring of liver enzymes as compared to when the drugs are administered as single agents. In patients receiving OPDIVO and cabozantinib, Grades 3 and 4 increased ALT or AST were seen in 11% of patients.

Immune-Mediated Endocrinopathies

OPDIVO and YERVOY can cause primary or secondary adrenal insufficiency, immune-mediated hypophysitis, immune-mediated thyroid disorders, and Type 1 diabetes mellitus, which can present with diabetic ketoacidosis. Withhold OPDIVO and YERVOY depending on severity (please see section 2 Dosage and Administration in the accompanying Full Prescribing Information). For Grade 2 or higher adrenal insufficiency, initiate symptomatic treatment, including hormone replacement as clinically indicated. 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 clinically indicated. Thyroiditis can present with or without endocrinopathy. Hypothyroidism can follow hyperthyroidism; initiate hormone replacement or medical management as clinically indicated. Monitor patients for hyperglycemia or other signs and symptoms of diabetes; initiate treatment with insulin as clinically indicated.

In patients receiving OPDIVO monotherapy, adrenal insufficiency occurred in 1% (20/1994), including Grade 3 (0.4%) and Grade 2 (0.6%). In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg every 3 weeks, adrenal insufficiency occurred in 8% (35/456), including Grade 4 (0.2%), Grade 3 (2.4%), and Grade 2 (4.2%). In patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg every 3 weeks, adrenal insufficiency occurred in 7% (48/666) of patients, including Grade 4 (0.3%), Grade 3 (2.5%), and Grade 2 (4.1%). In patients receiving OPDIVO and cabozantinib, adrenal insufficiency occurred in 4.7% (15/320) of patients, including Grade 3 (2.2%) and Grade 2 (1.9%).

In patients receiving OPDIVO monotherapy, hypophysitis occurred in 0.6% (12/1994) of patients, including Grade 3 (0.2%) and Grade 2 (0.3%). In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg every 3 weeks, hypophysitis occurred in 9% (42/456), including Grade 3 (2.4%) and Grade 2 (6%). In patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg every 3 weeks, hypophysitis occurred in 4.4% (29/666) of patients, including Grade 4 (0.3%), Grade 3 (2.4%), and Grade 2 (0.9%).

In patients receiving OPDIVO monotherapy, thyroiditis occurred in 0.6% (12/1994) of patients, including Grade 2 (0.2%). In patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg every 3 weeks, thyroiditis occurred in 2.7% (22/666) of patients, including Grade 3 (4.5%) and Grade 2 (2.2%).

In patients receiving OPDIVO monotherapy, hyperthyroidism occurred in 2.7% (54/1994) of patients, including Grade 3 (<0.1%) and Grade 2 (1.2%). In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg every 3 weeks, hyperthyroidism occurred in 9% (42/456) of patients, including Grade 3 (0.9%) and Grade 2 (4.2%). In patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg every 3 weeks, hyperthyroidism occurred in 12% (80/666) of patients, including Grade 3 (0.6%) and Grade 2 (4.5%).

In patients receiving OPDIVO monotherapy, hypothyroidism occurred in 8% (163/1994) of patients, including Grade 3 (0.2%) and Grade 2 (4.8%). In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg every 3 weeks, hypothyroidism occurred in 20% (91/456) of patients, including Grade 3 (0.4%) and Grade 2 (11%). In patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg every 3 weeks, hypothyroidism occurred in 18% (122/666) of patients, including Grade 3 (0.6%) and Grade 2 (11%).

In patients receiving OPDIVO monotherapy, diabetes occurred in 0.9% (17/1994) of patients, including Grade 3 (0.4%) and Grade 2 (0.3%), and 2 cases of diabetic ketoacidosis. In patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg every 3 weeks, diabetes occurred in 2.7% (15/666) of patients, including Grade 4 (0.6%), Grade 3 (0.3%), and Grade 2 (0.9%).

In a separate Phase 3 trial of YERVOY 3 mg/kg monotherapy, Grade 2-5 immune-mediated endocrinopathies occurred in 4% (21/511) of patients. Severe to life-threatening (Grade 3-4) endocrinopathies occurred in 9 (1.8%) patients. All 9 patients had hypopituitarism, and some had additional concomitant endocrinopathies such as adrenal insufficiency, hypogonadism, and hypothyroidism. Six of the 9 patients were hospitalized for severe endocrinopathies. Moderate (Grade 2) endocrinopathy occurred in 12 patients (2.3%), including hypothyroidism, adrenal insufficiency, hypopituitarism, hyperthyroidism and Cushing’s syndrome.

Immune-Mediated Nephritis with Renal Dysfunction

OPDIVO and YERVOY can cause immune-mediated nephritis. In patients receiving OPDIVO monotherapy, immune-mediated nephritis and renal dysfunction occurred in 1.2% (23/1994) of patients, including Grade 4 (<0.1%), Grade 3 (0.5%), and Grade 2 (0.6%). In patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg every 3 weeks, immune-mediated nephritis with renal dysfunction occurred in 4.1% (27/666) of patients, including Grade 4 (0.6%), Grade 3 (1.1%), and Grade 2 (2.2%).

Immune-Mediated Dermatologic Adverse Reactions

OPDIVO can cause immune-mediated rash or dermatitis. Exfoliative dermatitis, including Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), and drug rash with eosinophilia and systemic symptoms (DRESS) has occurred with PD-1/PD-L1 blocking antibodies. Topical emollients and/or topical corticosteroids may be adequate to treat mild to moderate nonexfoliative rashes.

YERVOY can cause immune-mediated rash or dermatitis, including bullous and exfoliative dermatitis, SJS, TEN, and DRESS. Topical emollients and/or topical corticosteroids may be adequate to treat mild to moderate non-bullous/ exfoliative rashes.

Withhold or permanently discontinue OPDIVO and YERVOY depending on severity (please see section 2 Dosage and Administration in the accompanying Full Prescribing Information).

In patients receiving OPDIVO monotherapy, immune-mediated rash occurred in 9% (171/1994) of patients, including Grade 3 (1.1%) and Grade 2 (2.2%). In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg every 3 weeks, immune-mediated rash occurred in 28% (127/456) of patients, including Grade 3 (4.8%) and Grade 2 (10%). In patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg every 3 weeks, immune-mediated rash occurred in 16% (108/666) of patients, including Grade 3 (3.5%) and Grade 2 (4.2%).

In a separate Phase 3 trial of YERVOY 3 mg/kg monotherapy, immune-mediated rash occurred in 15% (76/511) of patients, including Grade 3-5 (2.5%) and Grade 2 (12%).

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 OPDIVO monotherapy or OPDIVO in combination with YERVOY or were reported with the use of other PD-1/PD-L1 blocking antibodies. 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; 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, polymyalgia rheumatica; endocrine: hypoparathyroidism; other (hematologic/immune): hemolytic anemia, aplastic anemia, hemophagocytic lymphohistiocytosis (HLH), systemic inflammatory response syndrome, histiocytic necrotizing lymphadenitis (Kikuchi lymphadenitis), sarcoidosis, immune thrombocytopenic purpura, solid organ transplant rejection.

In addition to the immune-mediated adverse reactions listed above, across clinical trials of YERVOY monotherapy or in combination with OPDIVO, the following clinically significant immune-mediated adverse reactions, some with fatal outcome, occurred in <1% of patients unless otherwise specified: nervous system: autoimmune neuropathy (2%), myasthenic syndrome/myasthenia gravis, motor dysfunction; cardiovascular: angiopathy, temporal arteritis; ocular: blepharitis, episcleritis, orbital myositis, scleritis; gastrointestinal: pancreatitis (1.3%); other (hematologic/immune): conjunctivitis, cytopenias (2.5%), eosinophilia (2.1%), erythema multiforme, hypersensitivity vasculitis, neurosensory hypoacusis, psoriasis.

Some ocular IMAR 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, which has been observed in patients receiving OPDIVO and YERVOY , as this may require treatment with systemic corticosteroids to reduce the risk of permanent vision loss.

Infusion-Related Reactions

OPDIVO and YERVOY can cause severe infusion-related reactions. Discontinue OPDIVO and YERVOY in patients with severe (Grade 3) or life-threatening (Grade 4) infusion-related reactions. Interrupt or slow the rate of infusion in patients with mild (Grade 1) or moderate (Grade 2) infusion-related reactions. In patients receiving OPDIVO monotherapy as a 60-minute infusion, infusion-related reactions occurred in 6.4% (127/1994) of patients. In a separate trial in which patients received OPDIVO monotherapy as a 60-minute infusion or a 30-minute infusion, infusion-related reactions occurred in 2.2% (8/368) and 2.7% (10/369) of patients, respectively. Additionally, 0.5% (2/368) and 1.4% (5/369) of patients, respectively, experienced adverse reactions within 48 hours of infusion that led to dose delay, permanent discontinuation or withholding of OPDIVO. In melanoma patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg every 3 weeks, infusion-related reactions occurred in 2.5% (10/407) of patients. In HCC patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg every 3 weeks, infusion-related reactions occurred in 8% (4/49) of patients. In RCC patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, infusion-related reactions occurred in 5.1% (28/547) of patients. In MSI-H/dMMR mCRC patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg every 3 weeks, infusion-related reactions occurred in 4.2% (5/119) of patients. In MPM patients receiving OPDIVO 3 mg/kg every 2 weeks with YERVOY 1 mg/kg every 6 weeks, infusion-related reactions occurred in 12% (37/300) of patients.

In separate Phase 3 trials of YERVOY 3 mg/kg and 10 mg/kg monotherapy, infusion-related reactions occurred in 2.9% (28/982) of patients.

Complications of Allogeneic Hematopoietic Stem Cell Transplantation

Fatal and other serious complications can occur in patients who receive allogeneic hematopoietic stem cell transplantation (HSCT) before or after being treated with OPDIVO or YERVOY. Transplant-related complications include hyperacute graft-versus-host-disease (GVHD), acute GVHD, chronic GVHD, hepatic veno-occlusive disease (VOD) after reduced intensity conditioning, and steroid-requiring febrile syndrome (without an identified infectious cause). These complications may occur despite intervening therapy between OPDIVO or YERVOY and allogeneic HSCT.

Follow patients closely for evidence of transplant-related complications and intervene promptly. Consider the benefit versus risks of treatment with OPDIVO and YERVOY prior to or after an allogeneic HSCT.

Embryo-Fetal Toxicity

Based on its mechanism of action and findings from animal studies, OPDIVO and YERVOY can cause fetal harm when administered to a pregnant woman. The effects of YERVOY are likely to be greater during the second and third trimesters of pregnancy. Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use effective contraception during treatment with OPDIVO and YERVOY and for at least 5 months after the last dose.

Increased Mortality in Patients with Multiple Myeloma when OPDIVO is Added to a Thalidomide Analogue and Dexamethasone

In randomized clinical trials in patients with multiple myeloma, the addition of OPDIVO to a thalidomide analogue plus dexamethasone resulted in increased mortality. Treatment of patients with multiple myeloma with a PD-1 or PD-L1 blocking antibody in combination with a thalidomide analogue plus dexamethasone is not recommended outside of controlled clinical trials.

Lactation

There are no data on the presence of OPDIVO or YERVOY in human milk, the effects on the breastfed child, or the effects on milk production. Because of the potential for serious adverse reactions in breastfed children, advise women not to breastfeed during treatment and for 5 months after the last dose.

Serious Adverse Reactions

In Checkmate 037, serious adverse reactions occurred in 41% of patients receiving OPDIVO (n=268). Grade 3 and 4 adverse reactions occurred in 42% of patients receiving OPDIVO. The most frequent Grade 3 and 4 adverse drug reactions reported in 2% to <5% of patients receiving OPDIVO were abdominal pain, hyponatremia, increased aspartate aminotransferase, and increased lipase. In Checkmate 066, serious adverse reactions occurred in 36% of patients receiving OPDIVO (n=206). Grade 3 and 4 adverse reactions occurred in 41% of patients receiving OPDIVO. The most frequent Grade 3 and 4 adverse reactions reported in ≥2% of patients receiving OPDIVO were gamma-glutamyltransferase increase (3.9%) and diarrhea (3.4%). In Checkmate 067, serious adverse reactions (74% and 44%), adverse reactions leading to permanent discontinuation (47% and 18%) or to dosing delays (58% and 36%), and Grade 3 or 4 adverse reactions (72% and 51%) all occurred more frequently in the OPDIVO plus YERVOY arm (n=313) relative to the OPDIVO arm (n=313). The most frequent (≥10%) serious adverse reactions in the OPDIVO plus YERVOY arm and the OPDIVO arm, respectively, were diarrhea (13% and 2.2%), colitis (10% and 1.9%), and pyrexia (10% and 1.0%). In Checkmate 227, serious adverse reactions occurred in 58% of patients (n=576). The most frequent (≥2%) serious adverse reactions were pneumonia, diarrhea/colitis, pneumonitis, hepatitis, pulmonary embolism, adrenal insufficiency, and hypophysitis. Fatal adverse reactions occurred in 1.7% of patients; these included events of pneumonitis (4 patients), myocarditis, acute kidney injury, shock, hyperglycemia, multi-system organ failure, and renal failure. In Checkmate 9LA, serious adverse reactions occurred in 57% of patients (n=358). The most frequent (>2%) serious adverse reactions were pneumonia, diarrhea, febrile neutropenia, anemia, acute kidney injury, musculoskeletal pain, dyspnea, pneumonitis, and respiratory failure. Fatal adverse reactions occurred in 7 (2%) patients, and included hepatic toxicity, acute renal failure, sepsis, pneumonitis, diarrhea with hypokalemia, and massive hemoptysis in the setting of thrombocytopenia. In Checkmate 017 and 057, serious adverse reactions occurred in 46% of patients receiving OPDIVO (n=418). The most frequent serious adverse reactions reported in ≥2% of patients receiving OPDIVO were pneumonia, pulmonary embolism, dyspnea, pyrexia, pleural effusion, pneumonitis, and respiratory failure. In Checkmate 057, fatal adverse reactions occurred; these included events of infection (7 patients, including one case of Pneumocystis jirovecii pneumonia), pulmonary embolism (4 patients), and limbic encephalitis (1 patient). In Checkmate 743, serious adverse reactions occurred in 54% of patients receiving OPDIVO plus YERVOY. The most frequent serious adverse reactions reported in ≥2% of patients were pneumonia, pyrexia, diarrhea, pneumonitis, pleural effusion, dyspnea, acute kidney injury, infusion-related reaction, musculoskeletal pain, and pulmonary embolism. Fatal adverse reactions occurred in 4 (1.3%) patients and included pneumonitis, acute heart failure, sepsis, and encephalitis. In Checkmate 214, serious adverse reactions occurred in 59% of patients receiving OPDIVO plus YERVOY (n=547). The most frequent serious adverse reactions reported in ≥2% of patients were diarrhea, pyrexia, pneumonia, pneumonitis, hypophysitis, acute kidney injury, dyspnea, adrenal insufficiency, and colitis. In Checkmate 9ER, serious adverse reactions occurred in 48% of patients receiving OPDIVO and cabozantinib (n=320). The most frequent serious adverse reactions reported in ≥2% of patients were diarrhea, pneumonia, pneumonitis, pulmonary embolism, urinary tract infection, and hyponatremia. Fatal intestinal perforations occurred in 3 (0.9%) patients. In Checkmate 025, serious adverse reactions occurred in 47% of patients receiving OPDIVO (n=406). The most frequent serious adverse reactions reported in ≥2% of patients were acute kidney injury, pleural effusion, pneumonia, diarrhea, and hypercalcemia. In Checkmate 205 and 039, adverse reactions leading to discontinuation occurred in 7% and dose delays due to adverse reactions occurred in 34% of patients (n=266). Serious adverse reactions occurred in 26% of patients. The most frequent serious adverse reactions reported in ≥1% of patients were pneumonia, infusion-related reaction, pyrexia, colitis or diarrhea, pleural effusion, pneumonitis, and rash. Eleven patients died from causes other than disease progression: 3 from adverse reactions within 30 days of the last OPDIVO dose, 2 from infection 8 to 9 months after completing OPDIVO, and 6 from complications of allogeneic HSCT. In Checkmate 141, serious adverse reactions occurred in 49% of patients receiving OPDIVO (n=236). The most frequent serious adverse reactions reported in ≥2% of patients receiving OPDIVO were pneumonia, dyspnea, respiratory failure, respiratory tract infection, and sepsis. In Checkmate 275, serious adverse reactions occurred in 54% of patients receiving OPDIVO (n=270). The most frequent serious adverse reactions reported in ≥2% of patients receiving OPDIVO were urinary tract infection, sepsis, diarrhea, small intestine obstruction, and general physical health deterioration. In Checkmate 142 in MSI-H/dMMR mCRC patients receiving OPDIVO with YERVOY (n=119), serious adverse reactions occurred in 47% of patients. The most frequent serious adverse reactions reported in ≥2% of patients were colitis/diarrhea, hepatic events, abdominal pain, acute kidney injury, pyrexia, and dehydration. In Checkmate 040, serious adverse reactions occurred in 49% of patients receiving OPDIVO (n=154). The most frequent serious adverse reactions reported in ≥2% of patients were pyrexia, ascites, back pain, general physical health deterioration, abdominal pain, pneumonia, and anemia. In Checkmate 040, serious adverse reactions occurred in 59% of patients receiving OPDIVO with YERVOY (n=49). Serious adverse reactions reported in ≥4% of patients were pyrexia, diarrhea, anemia, increased AST, adrenal insufficiency, ascites, esophageal varices hemorrhage, hyponatremia, increased blood bilirubin, and pneumonitis. In Checkmate 238, serious adverse reactions occurred in 18% of patients receiving OPDIVO (n=452). Grade 3 or 4 adverse reactions occurred in 25% of OPDIVO-treated patients (n=452). The most frequent Grade 3 and 4 adverse reactions reported in ≥2% of OPDIVO-treated patients were diarrhea and increased lipase and amylase. In Attraction-3, serious adverse reactions occurred in 38% of patients receiving OPDIVO (n=209). Serious adverse reactions reported in ≥2% of patients who received OPDIVO were pneumonia, esophageal fistula, interstitial lung disease, and pyrexia. The following fatal adverse reactions occurred in patients who received OPDIVO: interstitial lung disease or pneumonitis (1.4%), pneumonia (1.0%), septic shock (0.5%), esophageal fistula (0.5%), gastrointestinal hemorrhage (0.5%), pulmonary embolism (0.5%), and sudden death (0.5%).

Common Adverse Reactions

In Checkmate 037, the most common adverse reaction (≥20%) reported with OPDIVO (n=268) was rash (21%). In Checkmate 066, the most common adverse reactions (≥20%) reported with OPDIVO (n=206) vs dacarbazine (n=205) were fatigue (49% vs 39%), musculoskeletal pain (32% vs 25%), rash (28% vs 12%), and pruritus (23% vs 12%). In Checkmate 067, the most common (≥20%) adverse reactions in the OPDIVO plus YERVOY arm (n=313) were fatigue (62%), diarrhea (54%), rash (53%), nausea (44%), pyrexia (40%), pruritus (39%), musculoskeletal pain (32%), vomiting (31%), decreased appetite (29%), cough (27%), headache (26%), dyspnea (24%), upper respiratory tract infection (23%), arthralgia (21%), and increased transaminases (25%). In Checkmate 067, the most common (≥20%) adverse reactions in the OPDIVO arm (n=313) were fatigue (59%), rash (40%), musculoskeletal pain (42%), diarrhea (36%), nausea (30%), cough (28%), pruritus (27%), upper respiratory tract infection (22%), decreased appetite (22%), headache (22%), constipation (21%), arthralgia (21%), and vomiting (20%). In Checkmate 227, the most common (≥20%) adverse reactions were fatigue (44%), rash (34%), decreased appetite (31%), musculoskeletal pain (27%), diarrhea/colitis (26%), dyspnea (26%), cough (23%), hepatitis (21%), nausea (21%), and pruritus (21%). In Checkmate 9LA, the most common (>20%) adverse reactions were fatigue (49%), musculoskeletal pain (39%), nausea (32%), diarrhea (31%), rash (30%), decreased appetite (28%), constipation (21%), and pruritus (21%). In Checkmate 017 and 057, the most common adverse reactions (≥20%) in patients receiving OPDIVO (n=418) were fatigue, musculoskeletal pain, cough, dyspnea, and decreased appetite. In Checkmate 743, the most common adverse reactions (≥20%) in patients receiving OPDIVO plus YERVOY were fatigue (43%), musculoskeletal pain (38%), rash (34%), diarrhea (32%), dyspnea (27%), nausea (24%), decreased appetite (24%), cough (23%), and pruritus (21%). In Checkmate 214, the most common adverse reactions (≥20%) reported in patients treated with OPDIVO plus YERVOY (n=547) were fatigue (58%), rash (39%), diarrhea (38%), musculoskeletal pain (37%), pruritus (33%), nausea (30%), cough (28%), pyrexia (25%), arthralgia (23%), decreased appetite (21%), dyspnea (20%), and vomiting (20%). In Checkmate 9ER, the most common adverse reactions (≥20%) in patients receiving OPDIVO and cabozantinib (n=320) were diarrhea (64%), fatigue (51%), hepatotoxicity (44%), palmar-plantar erythrodysaesthesia syndrome (40%), stomatitis (37%), rash (36%), hypertension (36%), hypothyroidism (34%), musculoskeletal pain (33%), decreased appetite (28%), nausea (27%), dysgeusia (24%), abdominal pain (22%), cough (20%) and upper respiratory tract infection (20%). In Checkmate 025, the most common adverse reactions (≥20%) reported in patients receiving OPDIVO (n=406) vs everolimus (n=397) were fatigue (56% vs 57%), cough (34% vs 38%), nausea (28% vs 29%), rash (28% vs 36%), dyspnea (27% vs 31%), diarrhea (25% vs 32%), constipation (23% vs 18%), decreased appetite (23% vs 30%), back pain (21% vs 16%), and arthralgia (20% vs 14%). In Checkmate 205 and 039, the most common adverse reactions (≥20%) reported in patients receiving OPDIVO (n=266) were upper respiratory tract infection (44%), fatigue (39%), cough (36%), diarrhea (33%), pyrexia (29%), musculoskeletal pain (26%), rash (24%), nausea (20%) and pruritus (20%). In Checkmate 141, the most common adverse reactions (≥10%) in patients receiving OPDIVO (n=236) were cough (14%) and dyspnea (14%) at a higher incidence than investigator’s choice. In Checkmate 275, the most common adverse reactions (≥20%) reported in patients receiving OPDIVO (n=270) were fatigue (46%), musculoskeletal pain (30%), nausea (22%), and decreased appetite (22%). In Checkmate 142 in MSI-H/dMMR mCRC patients receiving OPDIVO as a single agent, the most common adverse reactions (≥20%) were fatigue (54%), diarrhea (43%), abdominal pain (34%), nausea (34%), vomiting (28%), musculoskeletal pain (28%), cough (26%), pyrexia (24%), rash (23%), constipation (20%), and upper respiratory tract infection (20%). In Checkmate 142 in MSI-H/dMMR mCRC patients receiving OPDIVO with YERVOY (n=119), the most common adverse reactions (≥20%) were fatigue (49%), diarrhea (45%), pyrexia (36%), musculoskeletal pain (36%), abdominal pain (30%), pruritus (28%), nausea (26%), rash (25%), decreased appetite (20%), and vomiting (20%). In Checkmate 040, the most common adverse reactions (≥20%) in patients receiving OPDIVO (n=154) were fatigue (38%), musculoskeletal pain (36%), abdominal pain (34%), pruritus (27%), diarrhea (27%), rash (26%), cough (23%), and decreased appetite (22%). In Checkmate 040, the most common adverse reactions (≥20%) in patients receiving OPDIVO with YERVOY (n=49), were rash (53%), pruritus (53%), musculoskeletal pain (41%), diarrhea (39%), cough (37%), decreased appetite (35%), fatigue (27%), pyrexia (27%), abdominal pain (22%), headache (22%), nausea (20%), dizziness (20%), hypothyroidism (20%), and weight decreased (20%). In Checkmate 238, the most common adverse reactions (≥20%) reported in OPDIVO-treated patients (n=452) vs ipilimumab-treated patients (n=453) were fatigue (57% vs 55%), diarrhea (37% vs 55%), rash (35% vs 47%), musculoskeletal pain (32% vs 27%), pruritus (28% vs 37%), headache (23% vs 31%), nausea (23% vs 28%), upper respiratory infection (22% vs 15%), and abdominal pain (21% vs 23%). The most common immune-mediated adverse reactions were rash (16%), diarrhea/colitis (6%), and hepatitis (3%). In Attraction-3, the most common adverse reactions (≥20%) in OPDIVO-treated patients (n=209) were rash (22%) and decreased appetite (21%).

In a separate Phase 3 trial of YERVOY 3 mg/kg, the most common adverse reactions (≥5%) in patients who received YERVOY at 3 mg/kg were fatigue (41%), diarrhea (32%), pruritus (31%), rash (29%), and colitis (8%).

Please see US Full Prescribing Information for OPDIVO and YERVOY.

Clinical Trials and Patient Populations

Checkmate 037–previously treated metastatic melanoma; Checkmate 066–previously untreated metastatic melanoma; Checkmate 067–previously untreated metastatic melanoma, as a single agent or in combination with YERVOY; Checkmate 227–previously untreated metastatic non-small cell lung cancer, in combination with YERVOY; Checkmate 9LA–previously untreated recurrent or metastatic non-small cell lung cancer in combination with YERVOY and 2 cycles of platinum-doublet chemotherapy by histology; Checkmate 017–second-line treatment of metastatic squamous non-small cell lung cancer; Checkmate 057–second-line treatment of metastatic non-squamous non-small cell lung cancer; Checkmate 743–previously untreated unresectable malignant pleural mesothelioma, in combination with YERVOY; Checkmate 214–previously untreated renal cell carcinoma, in combination with YERVOY; Checkmate 9ER–previously untreated renal cell carcinoma, in combination with cabozantinib; Checkmate 025–previously treated renal cell carcinoma; Checkmate 205/039–classical Hodgkin lymphoma; Checkmate 141–recurrent or metastatic squamous cell carcinoma of the head and neck; Checkmate 275–urothelial carcinoma; Checkmate 142–MSI-H or dMMR metastatic colorectal cancer, as a single agent or in combination with YERVOY; Checkmate 040–hepatocellular carcinoma, as a single agent or in combination with YERVOY; Checkmate 238–adjuvant treatment of melanoma; Attraction-3–esophageal squamous cell carcinoma

About the Bristol Myers Squibb and Ono Pharmaceutical Collaboration

In 2011, through a collaboration agreement with Ono Pharmaceutical Co., Bristol Myers Squibb expanded its territorial rights to develop and commercialize Opdivo globally, except in Japan, South Korea and Taiwan, where Ono had retained all rights to the compound at the time. On July 23, 2014, Ono and Bristol Myers Squibb further expanded the companies’ strategic collaboration agreement to jointly develop and commercialize multiple immunotherapies – as single agents and combination regimens – for patients with cancer in Japan, South Korea and Taiwan.

Kezar Life Sciences Presents Preclinical Data with IND Candidate KZR-261 at American Association for Cancer Research (AACR) 2021 Virtual Annual Meeting

On April 10, 2021 Kezar Life Sciences, Inc. (Nasdaq), a clinical-stage biotechnology company discovering and developing breakthrough treatments for immune-mediated and oncologic disorders, reported preclinical data on the company’s novel protein secretion program during two poster sessions at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) 2021 Virtual Annual Meeting (Press release, Kezar Life Sciences, APR 10, 2021, View Source [SID1234577844]).

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

"The growing body of evidence generated by our team supports the strong therapeutic potential of inhibiting Sec61 and the protein secretion pathway as a way to generate novel therapies to treat multiple tumor indications," said Christopher Kirk, PhD, Kezar’s President and Chief Scientific Officer. "These data provide a robust scientific framework for identifying which tumor types might be the most sensitive to inhibition of the Sec61 translocon and the protein secretion pathway."

Kezar examined the activity of KZR-261, a small molecule inhibitor of the Sec 61 translocon, and a closely related representative molecule in hundreds of tumor cell lines. The objective was to compare drug activity and identify sensitivity to gene mutations and impact on gene expression levels. No single gene predicted the activity of KZR-261, consistent with the known impact of KZR-261 on multiple targets. However, representative gene modules identified through mechanism agnostic analysis were associated with sensitivity in tumor cells and show high overlap with key processes involved in protein secretion. Analyses of primary tumor and tissue expression datasets predict that many tumor types will be more sensitive than normal tissues and cells. Data from these analyses will inform selection of tumor types for study in future clinical trials.

Global proteomic profiling of protein secretion in tumor cells and non-transformed cells was also conducted. KZR-261 and the related molecules reduce expression of Sec61 clients, namely secreted and transmembrane proteins. In tumor cells, these compounds reduced expression of approximately 10% of Sec61 clients by at least two-fold. However, in non-transformed cells, KZR-261 inhibited the expression of less than 5% of measured Sec61 clients, many of which can be measured from clinical samples in future clinical trials.

Pending successful completion of drug product manufacturing, submission of an Investigational New Drug (IND) application is anticipated in mid-2021. A first-in-human Phase 1 study to evaluate the safety and anti-tumor activity of KZR-261 in patients with solid tumors is expected to commence shortly thereafter.

Details on Kezar’s poster presentations at AACR (Free AACR Whitepaper) are as follows:

Title: Prioritizing tumor types for clinical study of novel Sec61 inhibitors by searching for expression profiles of sensitive cell lines in tumor sample databases
Presenter/s: Eric Lowe, R. Andrea Fan, Henry W. B. Johnson, Christopher J. Kirk, Dustin McMinn, Yu Qian, Brian Tuch
Session: Genomic Profiling of Tumors – Abstract #2226
Date and time: Available on demand [8:30AM ET, Saturday, April 10, 2021]

Title: Quantitative proteomic profiling of novel anti-cancer small molecule inhibitors of Sec61: Mechanistic investigation and biomarker discovery
Presenter/s: Yu Qian, Jennifer Whang, Janet Anderl, Andrea Fan, Henry W. B. Johnson, Christopher J. Kirk, Eric Lowe, Dustin McMinn, Beatriz Millare, Tony Muchamuel and Jinhai Wang; Kezar Life Sciences
Session: Proteomics and Biomarker Discovery – Abstract #2816
Date and time: Available on demand [8:30AM ET, Saturday, April 10, 2021]

The posters are available in the "Our Science" section of kezarlifesciences.com.

About KZR-261

KZR-261, a novel, first-in-class protein secretion inhibitor, is the first clinical candidate to be nominated from Kezar’s research and discovery efforts targeting protein secretion pathways. KZR-261 is a broad-spectrum anti-tumor agent that acts through direct interaction and inhibition of Sec61 activity. The compound was discovered by Kezar through a robust medicinal chemistry campaign in which several scaffolds were progressed through the company’s proprietary platform evaluating Sec61 modulation. As a result, Kezar has established a broad library of protein secretion inhibitors. KZR-261 has demonstrated several encouraging properties that lead to its potential to be an anti-cancer agent for the treatment of solid and hematologic malignancies. An IND submission in solid tumors is expected to be filed in mid-2021.

SQZ Biotech Presents Preclinical Data on its mRNA-based enhanced APCs and the Potential of the SQZ APC Platform in KRAS Driven Tumors

On April 10, 2021 SQZ Biotechnologies (NYSE: SQZ), a cell therapy company developing novel treatments for multiple therapeutic areas, reported preclinical data from its next generation SQZ APCs, enhanced APCs or eAPCs, and the potentially broader applicability of the platform at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) 2021 Annual Meeting (Press release, SQZ Biotech, APR 10, 2021, View Source [SID1234577860]).

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

"One of the advantages of the Cell Squeeze technology is the ability to simultaneously engineer multiple functions in cells, the underpinning of our SQZ eAPC program. With this next generation program, we are aiming to achieve the benefits of combination therapies that can drive powerful immune responses within a single multiplexed cell therapy," said Howard Bernstein, MD, PhD, chief scientific officer of SQZ. "Our vision is to incorporate additional functionality and new antigens to the foundation we are establishing with our lead SQZ APC program. The eAPC and KRAS data presented at AACR (Free AACR Whitepaper) provide preclinical examples of how we could potentially extend our impact across indications and help more patients."

SQZ eAPCs build on the power of the SQZ APC platform, which is focused on producing robust and specific CD8 T cell activation through efficient MHC-I antigen presentation. By delivering multiple mRNA into cells in a single squeeze, SQZ eAPCs are designed to further enhance T cell stimulation and boost immune-signaling that would otherwise require combinations with additional immune-oncology agents. In addition, the mRNA-based cargo facilitates presentation of a broader range of tumor epitopes, which could expand the addressable HPV+ patient population. The eAPC platform offers the opportunity for application across oncology and infectious diseases.

Highlights from the SQZ eAPC preclinical data shared at AACR (Free AACR Whitepaper) (Posters 1525 and 2626) include:

Enhancement of the quality and quantity of CD8 T cell activation by SQZ eAPCs through incorporation of CD86, membrane bound IL-2 (mbIL-2), and membrane bound IL-12 (mbIL-12), leveraging multiplexed delivery of mRNAs encoding each component
mbIL-2 and mbIL-12 mRNA delivery via Cell Squeeze led to surface expression of the cytokines in all measured human PBMC subsets (B cells, T cells, NK cells, and monocytes) and resulted in functional IL-2 and IL-12 signaling
CD86, mbIL-2, and mbIL-12 mRNA delivered alone or in combination increased antigen-specific CD8 T cell responses as much as ten-fold
Multiplexing CMVpp65 and influenza M1 mRNA antigens with signal 2/3 mRNAs enhanced the potency of SQZ APCs – inducing stronger antigen-specific CD8 T cell responses for infectious disease
Co-squeezing E6 and E7 mRNAs drove antigen-specific CD8 T cell activation regardless of HLA haplotype, which could significantly broaden the addressable HPV+ patient population and potentially eliminate the need for HLA screening
Cell Squeeze mRNA delivery stimulated memory CD8 T cells across various antigens and HLA haplotypes
SQZ is leveraging the cargo flexibility of its Cell Squeeze technology to pursue additional tumor targets. SQZ APCs have demonstrated the ability to elicit specific KRAS G12D and G12V CD8+ T cell responses in both animal models and in human cells.

Highlights from the SQZ-APC-KRAS preclinical data shared at AACR (Free AACR Whitepaper) (Poster 1524) include:

SQZ APCs engineered with KRas G12D and G12V peptides, both alone and multiplexed, generated specific and robust CD8 T cell responses against the target mutations
KRAS G12D and G12V make up over half of all KRAS mutations, with approximately 100,000 patients per year having KRAS G12D or G12V mutated cancers in the United States