Provectus Announces Updated Results from Phase 1B Trial of PV-10 in Combination with KEYTRUDA® for Treatment of Advanced Melanoma at ASCO 2019

On June 3, 2019 Provectus (OTCQB: PVCT) reported that updated safety and response results as well as preliminary treatment durability and immune response results from the Company’s ongoing Phase 1b/2 study of PV-10 in combination with KEYTRUDA (pembrolizumab), an immune checkpoint inhibitor, were presented at the American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) 2019 Annual Meeting, held in Chicago, IL from May 31-June 4, 2019 (Press release, Provectus Biopharmaceuticals, JUN 3, 2019, View Source [SID1234536871]). Intralesional injection of oncolytic immunotherapy PV-10 can yield immunogenic cell death in solid tumor cancers that results in tumor-specific reactivity in circulating T cells.1-5 PV-10 clinical development includes cutaneous melanoma and cancers of the liver, such as hepatocellular carcinoma, metastatic neuroendocrine tumors, and metastatic uveal melanoma, in both single-agent and combination therapy settings.

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The Phase 1b portion of the study completed enrollment of 23 patients with advanced melanoma in April 2018 (NCT02557321). Patients with at least one injectable lesion and who were candidates for KEYTRUDA were eligible. Subjects received the combination treatment of PV-10 and KEYTRUDA every three weeks for up to five cycles (i.e., over a period of up to 12 weeks, with no further PV-10 administered after week 12), followed by only KEYTRUDA every three weeks for up to 24 months. The primary endpoint for the Phase 1b trial was safety and tolerability. Objective response rate (ORR) and progression-free survival (PFS) were key secondary endpoints (both assessed via RECIST 1.1 after five treatment cycles, and then every 12 weeks thereafter). Response follow-up of 6 patients (26%) still is ongoing.

Updated Results from the Presentation at ASCO (Free ASCO Whitepaper):

Baseline characteristics: 83% men; median age of 70 years (range 28-90) and 70% > 65 years; 91% checkpoint naïve.

Disease characteristics: 87% Stage IV; median of 2 cutaneous/subcutaneous lesions (range 1-15)6; most subjects had substantial non-injected systemic disease burden in addition to injectable cutaneous and/or subcutaneous lesions.

Treatment summary: Median of 4 cycles (mean 3.7, range 1-5) and median of 5 injections of PV-10 (range 1-82); PV-10 was not administered after week 12.

Updated safety: Treatment-emergent adverse events were consistent with the established patterns for each drug; there were no significant overlap of or unexpected toxicities.

Updated overall efficacy (per RECIST 1.1): 9% CR and 65% ORR; 71% ORR in M1b patients and 80% ORR in M1c patients.

Updated target lesion efficacy (best overall response): 77% complete response (CR), 80% ORR, and 87% clinical benefit; 75% CR in M1b patients and 100% CR in M1c patients.

Preliminary durability: PFS of 12.3 months.

Minimal intervention: 26% of patients achieved an overall objective response after 3 or less cycles of PV-10; 30% of target lesions achieved CR after 1 injection of PV-10 and 53% achieved CR after 3 injections or less.

Preliminary changes in peripheral blood mononuclear cells: Activated T cell populations increased during the PV-10 treatment interval; NK and NKT cell populations exhibited transient increases 1 week after PV-10 injections; cytotoxic, helper, and total T cell populations were stable.
The Company is enrolling and treating patients in an expansion cohort of up to 24 subjects to assess the PV-10-KEYTRUDA combination in patients who have failed to respond to initial treatment with checkpoint inhibition. Two patients in the Phase 1b study’s main cohort were refractory to checkpoint inhibition: 1 achieved a CR after previously being on OPDIVO for 12 months and 1 withdrew after previously being on YERVOY for 3 years due to the onset of myasthenia gravis. Provectus plans to present preliminary data from this expansion cohort of refractory patients at a medical conference in the fourth calendar quarter of 2019.

Dominic Rodrigues, Vice Chair of the Company’s Board of Directors, said, "These trial results demonstrate the safety profile, treatment response, durability of response, and immune response of the PV-10-checkpoint inhibition combination after minimal PV-10 intervention.7 Successful cancer combination therapy is achieved by pairing drugs that each show single-agent activity."

Mr. Rodrigues added, "Together with safety, response, biomarker, and quality of life data of single-agent PV-10 for the treatment of metastatic neuroendocrine tumors presented earlier today at ASCO (Free ASCO Whitepaper), these advanced melanoma combination therapy data add to the abundance of drug activity information of PV-10 in both high and low mutation tumor types, and in both T cell and non-T cell inflamed tumor types."

A copy of the ASCO (Free ASCO Whitepaper) poster presentation is currently available on Provectus’ website at View Source

About PV-10

PV-10 causes acute oncolytic destruction of injected tumors, releasing damage associated molecular pattern molecules (DAMPs) and tumor antigens that initiate an immunologic cascade where local response by the innate immune system facilitates systemic anti-tumor immunity by the adaptive immune system. The DAMP release-mediated adaptive immune response activates lymphocytes, including CD8+ T cells, CD4+ T cells, and NKT cells, based on clinical and preclinical experience in multiple tumor types. T cell function can be further augmented by combining PV-10 with immune checkpoint inhibition.

PV-10 is undergoing clinical study for adult solid tumor cancers like melanoma and cancers of the liver (including metastatic neuroendocrine tumors and metastatic uveal melanoma) and preclinical study for pediatric cancers like neuroblastoma5, Ewing sarcoma, rhabdomyosarcoma, and osteosarcoma.

Orphan drug designation status has been granted to PV-10 by the U.S. Food and Drug Administration for the treatments of metastatic melanoma in 2006, hepatocellular carcinoma in 2011, neuroblastoma in 2018, and ocular melanoma (including uveal melanoma) in 2019.

PV-10’s active pharmaceutical ingredient is rose bengal disodium (RB) (4,5,6,7-tetrachloro-2’,4’,5’,7’-tetraiodofluorescein disodium salt), a small molecule halogenated xanthene. PV-10 drug product is a bright rose red solution containing 10% w/v RB in 0.9% saline for injection, which is supplied in single-use glass vials containing 5 mL (to deliver) of solution and administered without dilution to solid tumors via intratumoral injection.

Provectus’ intellectual property includes a family of US and international patents that protect the process by which pharmaceutical grade RB and related xanthenes are produced, reducing the formation of previously unknown transhalogenated impurities that exist in commercial grade RB in uncontrolled amounts. The requirement to identify and control these substances is in accordance with International Conference on Harmonisation (ICH) guidelines for the manufacturing of active pharmaceutical ingredient that is suitable for clinical trial and commercial pharmaceutical use. US patent numbers are 8,530,675, 9,273,022, and 9,422,260; patent expirations range from 2030 to 2031.

Bristol-Myers Squibb Announces First Presentation of Results for Opdivo (nivolumab) Plus Yervoy (ipilimumab) Combination in Advanced Hepatocellular Carcinoma at ASCO 2019

On June 3, 2019 Bristol-Myers Squibb Company (NYSE: BMY) reported first results from the Opdivo (nivolumab) plus Yervoy (ipilimumab) cohort of the Phase 1/2 CheckMate -040 study, evaluating the Immuno-Oncology combination in patients with advanced hepatocellular carcinoma (HCC) previously treated with sorafenib (Press release, Bristol-Myers Squibb, JUN 3, 2019, View Source [SID1234536801]). With a minimum follow-up of 28 months, the blinded independent central review (BICR) objective response rate (ORR) was 31% per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1). At the time of data cutoff, the median duration of response (DoR) was 17.5 months (95% CI: 11.1, N/A). These data (Abstract #4012) will be featured at the American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Annual Meeting 2019 in Chicago in a poster display on Monday, June 3 from 8-11 AM CDT, and in a poster discussion from 3-4:30 PM CDT.

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The study randomized patients into three arms evaluating three different dosing schedules of the Opdivo plus Yervoy combination: Opdivo 1 mg/kg and Yervoy 3 mg/kg every three weeks (Q3W) for four cycles, followed by Opdivo 240 mg every two weeks (Q2W) (Arm A); Opdivo 3 mg/kg and Yervoy 1 mg/kg Q3W for four cycles, followed by Opdivo 240 mg Q2W (Arm B); or Opdivo 3 mg/kg Q2W and Yervoy 1 mg/kg every six weeks (Q6W) (Arm C).

Meaningful responses were observed across treatment arms. Patients in Arm A experienced the longest median overall survival (OS) of the cohort at 22.8 months (95% CI: 9.4, N/A) and a 30-month OS rate of 44% (95% CI: 29.5, 57). Opdivo and Yervoy demonstrated a disease control rate (DCR) of 54%, 43% and 49% per BICR using RECIST v1.1 across treatment arms A, B and C, respectively. Across the cohort, 5% of patients experienced a complete response and 26% experienced a partial response. Patient responses were achieved regardless of baseline tumor PD-L1 status. Opdivo plus Yervoy showed an acceptable safety profile and the addition of Yervoy yielded no new safety signals in any treatment arm.

"Hepatocellular carcinoma continues to represent a significant unmet need, as it is often diagnosed in the advanced stage where treatment options are limited and do not currently include the potential of an Immuno-Oncology combination," said Thomas Yau, M.D., Clinical Associate Professor, Department of Medicine, The University of Hong Kong. "These results indicate the addition of Yervoy to Opdivo elicits promising clinical responses in patients with advanced HCC, reiterating the important potential impact of this combination research."

"Opdivo has been an important treatment option for patients with advanced HCC since 2017, when it became the first Immuno-Oncology agent FDA approved for this aggressive cancer," said Ian M. Waxman, M.D., development lead, Gastrointestinal Cancers, Bristol-Myers Squibb. "We are encouraged by the efficacy observed with the Opdivo plus Yervoy combination in this cohort of CheckMate -040 and are grateful to the patients and investigators for their participation in this study, without whom this progress would not be possible."

About CheckMate -040

CheckMate -040 (NCT01658878) is an ongoing Phase 1/2, open-label, multi-cohort study investigating Opdivo or Opdivo-based combinations in patients with advanced HCC with and without chronic viral hepatitis who are naïve, intolerant to or who have progressed during sorafenib therapy.

The Opdivo plus Yervoy cohort of CheckMate -040 is an exploratory cohort evaluating the safety and efficacy of the combination in three different dosing regimens. Primary endpoints include safety and tolerability and ORR based on investigator assessment using RECIST v1.1, which was consistent with the exploratory endpoint of BICR-assessed ORR at 28 months follow-up (29% vs. 31%). Secondary endpoints include DCR, DoR, OS, time to response, time to progression and progression-free survival.

Rates of any grade treatment-related adverse events (TRAEs) were 94%, 71% and 79% in Arms A, B and C, respectively. The most commonly occurring grade 3-4 TRAEs included pruritus (4%, N/A, N/A), rash (4%, 4%, N/A), diarrhea (4%, 2%, 2%), aspartate aminotransferase (AST) increase (16%, 8%, 4%) and lipase increase (12% 6%, 8%). While grade 3-4 TRAEs were most common among patients in Arm A (53%) compared to Arms B and C (29%, 31%), events were considered manageable. Thirteen patients in the cohort (8.9%) had any grade TRAEs leading to discontinuation, eight of whom (5.5%) discontinued due to grade 3-4 TRAEs.

About Hepatocellular Carcinoma

Liver cancer is the fourth most frequent cause of cancer death worldwide and hepatocellular carcinoma (HCC), the most common type of liver cancer, is the fastest rising cause of cancer-related death in the United States. HCC is often diagnosed in the advanced stage, where effective treatment options are limited and the survival benefit provided by the first-line standard of care is less than three months over placebo. While most cases of HCC are caused by hepatitis B virus (HBV) or hepatitis C virus (HCV) infections, metabolic syndrome and nonalcoholic steatohepatitis (NASH) are rising in prevalence and expected to contribute to increased rates of HCC.

Bristol-Myers Squibb: Advancing Oncology Research

At Bristol-Myers Squibb, patients are at the center of everything we do. The focus of our research is to increase quality, long-term survival for patients and make cure a possibility. Through a unique multidisciplinary approach powered by translational science, we harness our deep scientific experience in oncology and Immuno-Oncology (I-O) research to identify novel treatments tailored to individual patient needs. Our researchers are developing a diverse, purposefully built pipeline designed to target different immune system pathways and address the complex and specific interactions between the tumor, its microenvironment and the immune system. We source innovation internally, and in collaboration with academia, government, advocacy groups and biotechnology companies, to help make the promise of transformational medicines, like I-O, a reality for patients.

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.

U.S. FDA-APPROVED INDICATIONS FOR OPDIVO

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) 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) is indicated for the treatment of patients with metastatic small cell lung cancer (SCLC) with progression after platinum-based chemotherapy and at least one other line of therapy. 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 advanced renal cell carcinoma (RCC) who have received prior anti-angiogenic therapy.

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

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 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.

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.

IMPORTANT SAFETY INFORMATION

WARNING: IMMUNE-MEDIATED ADVERSE REACTIONS

YERVOY can result in severe and fatal immune-mediated adverse reactions. These immune-mediated reactions may involve any organ system; however, the most common severe immune-mediated adverse reactions are enterocolitis, hepatitis, dermatitis (including toxic epidermal necrolysis), neuropathy, and endocrinopathy. The majority of these immune-mediated reactions initially manifested during treatment; however, a minority occurred weeks to months after discontinuation of YERVOY.

Assess patients for signs and symptoms of enterocolitis, dermatitis, neuropathy, and endocrinopathy, and evaluate clinical chemistries including liver function tests (LFTs), adrenocorticotropic hormone (ACTH) level, and thyroid function tests, at baseline and before each dose.

Permanently discontinue YERVOY and initiate systemic high-dose corticosteroid therapy for severe immune-mediated reactions.

Immune-Mediated Pneumonitis

OPDIVO can cause immune-mediated pneumonitis. Fatal cases have been reported. Monitor patients for signs with radiographic imaging and for symptoms of pneumonitis. Administer corticosteroids for Grade 2 or more severe pneumonitis. Permanently discontinue for Grade 3 or 4 and withhold until resolution for Grade 2. In patients receiving OPDIVO monotherapy, fatal cases of immune-mediated pneumonitis have occurred. Immune-mediated pneumonitis occurred in 3.1% (61/1994) of patients. In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg, immune-mediated pneumonitis occurred in 6% (25/407) of patients. In RCC patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, immune-mediated pneumonitis occurred in 4.4% (24/547) of patients. In MSI-H/dMMR mCRC patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, immune-mediated pneumonitis occurred in 1.7% (2/119) of patients.

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: Grade 3 (n=1) and Grade 2 (n=12).

Immune-Mediated Colitis

OPDIVO can cause immune-mediated colitis. Monitor patients for signs and symptoms of colitis. Administer corticosteroids for Grade 2 (of more than 5 days duration), 3, or 4 colitis. Withhold OPDIVO monotherapy for Grade 2 or 3 and permanently discontinue for Grade 4 or recurrent colitis upon re-initiation of OPDIVO. When administered with YERVOY, withhold OPDIVO and YERVOY for Grade 2 and permanently discontinue for Grade 3 or 4 or recurrent colitis. In patients receiving OPDIVO monotherapy, immune-mediated colitis occurred in 2.9% (58/1994) of patients. In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg, immune-mediated colitis occurred in 26% (107/407) of patients including three fatal cases. In RCC patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, immune-mediated colitis occurred in 10% (52/547) of patients. In MSI-H/dMMR mCRC patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, immune-mediated colitis occurred in 7% (8/119) of patients.

In a separate Phase 3 study of YERVOY 3 mg/kg, severe, life-threatening, or fatal (diarrhea of ≥7 stools above baseline, fever, ileus, peritoneal signs; Grade 3-5) immune-mediated enterocolitis occurred in 34 (7%) patients. Across all YERVOY-treated patients in that study (n=511), 5 (1%) developed intestinal perforation, 4 (0.8%) died as a result of complications, and 26 (5%) were hospitalized for severe enterocolitis.

Immune-Mediated Hepatitis

OPDIVO can cause immune-mediated hepatitis. Monitor patients for abnormal liver tests prior to and periodically during treatment. Administer corticosteroids for Grade 2 or greater transaminase elevations. For patients without HCC, withhold OPDIVO for Grade 2 and permanently discontinue OPDIVO for Grade 3 or 4. For patients with HCC, withhold OPDIVO and administer corticosteroids if AST/ALT is within normal limits at baseline and increases to >3 and up to 5 times the upper limit of normal (ULN), if AST/ALT is >1 and up to 3 times ULN at baseline and increases to >5 and up to 10 times the ULN, and if AST/ALT is >3 and up to 5 times ULN at baseline and increases to >8 and up to 10 times the ULN. Permanently discontinue OPDIVO and administer corticosteroids if AST or ALT increases to >10 times the ULN or total bilirubin increases >3 times the ULN. In patients receiving OPDIVO monotherapy, immune-mediated hepatitis occurred in 1.8% (35/1994) of patients. In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg, immune-mediated hepatitis occurred in 13% (51/407) of patients. In RCC patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, immune-mediated hepatitis occurred in 7% (38/547) of patients. In MSI-H/dMMR mCRC patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, immune-mediated hepatitis occurred in 8% (10/119) of patients.

In Checkmate 040, immune-mediated hepatitis requiring systemic corticosteroids occurred in 5% (8/154) of patients receiving OPDIVO.

In a separate Phase 3 study of YERVOY 3 mg/kg, severe, life-threatening, or fatal hepatotoxicity (AST or ALT elevations >5x the ULN or total bilirubin elevations >3x the ULN; Grade 3-5) occurred in 8 (2%) patients, with fatal hepatic failure in 0.2% and hospitalization in 0.4%.

Immune-Mediated Neuropathies

In a separate Phase 3 study of YERVOY 3 mg/kg, 1 case of fatal Guillain-Barré syndrome and 1 case of severe (Grade 3) peripheral motor neuropathy were reported.

Immune-Mediated Endocrinopathies

OPDIVO can cause immune-mediated hypophysitis, immune-mediated adrenal insufficiency, autoimmune thyroid disorders, and Type 1 diabetes mellitus. Monitor patients for signs and symptoms of hypophysitis, signs and symptoms of adrenal insufficiency, thyroid function prior to and periodically during treatment, and hyperglycemia. Administer hormone replacement as clinically indicated and corticosteroids for Grade 2 or greater hypophysitis. Withhold for Grade 2 or 3 and permanently discontinue for Grade 4 hypophysitis. Administer corticosteroids for Grade 3 or 4 adrenal insufficiency. Withhold for Grade 2 and permanently discontinue for Grade 3 or 4 adrenal insufficiency. Administer hormone-replacement therapy for hypothyroidism. Initiate medical management for control of hyperthyroidism. Withhold OPDIVO for Grade 3 and permanently discontinue for Grade 4 hyperglycemia.

In patients receiving OPDIVO monotherapy, hypophysitis occurred in 0.6% (12/1994) of patients. In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg, hypophysitis occurred in 9% (36/407) of patients. In RCC patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, hypophysitis occurred in 4.6% (25/547) of patients. In MSI-H/dMMR mCRC patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, immune-mediated hypophysitis occurred in 3.4% (4/119) of patients. In patients receiving OPDIVO monotherapy, adrenal insufficiency occurred in 1% (20/1994) of patients. In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg, adrenal insufficiency occurred in 5% (21/407) of patients. In RCC patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, adrenal insufficiency occurred in 7% (41/547) of patients. In MSI-H/dMMR mCRC patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, adrenal insufficiency occurred in 5.9% (7/119) of patients. In patients receiving OPDIVO monotherapy, hypothyroidism or thyroiditis resulting in hypothyroidism occurred in 9% (171/1994) of patients. Hyperthyroidism occurred in 2.7% (54/1994) of patients receiving OPDIVO monotherapy. In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg, hypothyroidism or thyroiditis resulting in hypothyroidism occurred in 22% (89/407) of patients. Hyperthyroidism occurred in 8% (34/407) of patients receiving this dose of OPDIVO with YERVOY. In RCC patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, hypothyroidism or thyroiditis resulting in hypothyroidism occurred in 22% (119/547) of patients. Hyperthyroidism occurred in 12% (66/547) of patients receiving this dose of OPDIVO with YERVOY. In MSI-H/dMMR mCRC patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, hypothyroidism or thyroiditis resulting in hypothyroidism occurred in 15% (18/119) of patients. Hyperthyroidism occurred in 12% (14/119) of patients. In patients receiving OPDIVO monotherapy, diabetes occurred in 0.9% (17/1994) of patients. In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg, diabetes occurred in 1.5% (6/407) of patients. In RCC patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, diabetes occurred in 2.7% (15/547) of patients.

In a separate Phase 3 study of YERVOY 3 mg/kg, severe to life-threatening immune-mediated endocrinopathies (requiring hospitalization, urgent medical intervention, or interfering with activities of daily living; Grade 3-4) 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.

Immune-Mediated Nephritis and Renal Dysfunction

OPDIVO can cause immune-mediated nephritis. Monitor patients for elevated serum creatinine prior to and periodically during treatment. Administer corticosteroids for Grades 2-4 increased serum creatinine. Withhold OPDIVO for Grade 2 or 3 and permanently discontinue for Grade 4 increased serum creatinine. In patients receiving OPDIVO monotherapy, immune-mediated nephritis and renal dysfunction occurred in 1.2% (23/1994) of patients. In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg, immune-mediated nephritis and renal dysfunction occurred in 2.2% (9/407) of patients. In RCC patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, immune-mediated nephritis and renal dysfunction occurred in 4.6% (25/547) of patients. In MSI-H/dMMR mCRC patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, immune-mediated nephritis and renal dysfunction occurred in 1.7% (2/119) of patients.

Immune-Mediated Skin Adverse Reactions and Dermatitis

OPDIVO can cause immune-mediated rash, including Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN), some cases with fatal outcome. Administer corticosteroids for Grade 3 or 4 rash. Withhold for Grade 3 and permanently discontinue for Grade 4 rash. For symptoms or signs of SJS or TEN, withhold OPDIVO and refer the patient for specialized care for assessment and treatment; if confirmed, permanently discontinue. In patients receiving OPDIVO monotherapy, immune-mediated rash occurred in 9% (171/1994) of patients. In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg, immune-mediated rash occurred in 22.6% (92/407) of patients. In RCC patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, immune-mediated rash occurred in 16.6% (91/547) of patients. In MSI-H/dMMR mCRC patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, immune-mediated rash occurred in 14% (17/119) of patients.

In a separate Phase 3 study of YERVOY 3 mg/kg, severe, life-threatening, or fatal immune-mediated dermatitis (eg, Stevens-Johnson syndrome, toxic epidermal necrolysis, or rash complicated by full thickness dermal ulceration, or necrotic, bullous, or hemorrhagic manifestations; Grade 3-5) occurred in 13 (2.5%) patients. 1 (0.2%) patient died as a result of toxic epidermal necrolysis. 1 additional patient required hospitalization for severe dermatitis.

Immune-Mediated Encephalitis

OPDIVO can cause immune-mediated encephalitis. Evaluation of patients with neurologic symptoms may include, but not be limited to, consultation with a neurologist, brain MRI, and lumbar puncture. Withhold OPDIVO in patients with new-onset moderate to severe neurologic signs or symptoms and evaluate to rule out other causes. If other etiologies are ruled out, administer corticosteroids and permanently discontinue OPDIVO for immune-mediated encephalitis. In patients receiving OPDIVO monotherapy, encephalitis occurred in 0.2% (3/1994) of patients. Fatal limbic encephalitis occurred in one patient after 7.2 months of exposure despite discontinuation of OPDIVO and administration of corticosteroids. Encephalitis occurred in one patient receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg (0.2%) after 1.7 months of exposure. Encephalitis occurred in one RCC patient receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg (0.2%) after approximately 4 months of exposure. Encephalitis occurred in one MSI-H/dMMR mCRC patient (0.8%) receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg after 15 days of exposure.

Other Immune-Mediated Adverse Reactions

Based on the severity of the adverse reaction, permanently discontinue or withhold OPDIVO, administer high-dose corticosteroids, and, if appropriate, initiate hormone-replacement therapy. Across clinical trials of OPDIVO monotherapy or in combination with YERVOY, the following clinically significant immune-mediated adverse reactions, some with fatal outcome, occurred in <1.0% of patients receiving OPDIVO: myocarditis, rhabdomyolysis, myositis, uveitis, iritis, pancreatitis, facial and abducens nerve paresis, demyelination, polymyalgia rheumatica, autoimmune neuropathy, Guillain-Barré syndrome, hypopituitarism, systemic inflammatory response syndrome, gastritis, duodenitis, sarcoidosis, histiocytic necrotizing lymphadenitis (Kikuchi lymphadenitis), motor dysfunction, vasculitis, aplastic anemia, pericarditis, and myasthenic syndrome.

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 may require treatment with systemic steroids to reduce the risk of permanent vision loss.

Infusion Reactions

OPDIVO can cause severe infusion reactions, which have been reported in <1.0% of patients in clinical trials. Discontinue OPDIVO in patients with Grade 3 or 4 infusion reactions. Interrupt or slow the rate of infusion in patients with Grade 1 or 2. In patients receiving OPDIVO monotherapy as a 60-minute infusion, infusion-related reactions occurred in 6.4% (127/1994) of patients. In a separate study 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 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 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, infusion-related reactions occurred in 4.2% (5/119) 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 a PD-1 receptor blocking antibody. 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 PD-1 blockade and allogeneic HSCT.

Follow patients closely for evidence of transplant-related complications and intervene promptly. Consider the benefit versus risks of treatment with a PD-1 receptor blocking antibody prior to or after an allogeneic HSCT.

Embryo-Fetal Toxicity

Based on their mechanisms of action, OPDIVO and YERVOY can cause fetal harm when administered to a pregnant woman. Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use effective contraception during treatment with an OPDIVO- or YERVOY- containing regimen and for at least 5 months after the last dose of OPDIVO.

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

In 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

It is not known whether OPDIVO or YERVOY is present in human milk. Because many drugs, including antibodies, are excreted in human milk and because of the potential for serious adverse reactions in nursing infants from an OPDIVO-containing regimen, advise women to discontinue breastfeeding during treatment. Advise women to discontinue breastfeeding during treatment with YERVOY and for 3 months following the final 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 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 032, serious adverse reactions occurred in 45% of patients receiving OPDIVO (n=245). The most frequent serious adverse reactions reported in at least 2% of patients receiving OPDIVO were pneumonia, dyspnea, pneumonitis, pleural effusions, and dehydration. 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 214, serious adverse reactions occurred in 59% of patients receiving OPDIVO plus YERVOY and in 43% of patients receiving sunitinib. 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 patients treated with sunitinib, they were pneumonia, pleural effusion, and dyspnea. 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, 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 (n=154). The most frequent serious adverse reactions reported in ≥2% of patients were pyrexia, ascites, back pain, general physical health deterioration, abdominal pain, and pneumonia. In Checkmate 238, 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. Serious adverse reactions occurred in 18% of OPDIVO-treated patients.

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 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 032, the most common adverse reactions (≥20%) in patients receiving OPDIVO (n=245) were fatigue (45%), decreased appetite (27%), musculoskeletal pain (25%), dyspnea (22%), nausea (22%), diarrhea (21%), constipation (20%), and cough (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 214, the most common adverse reactions (≥20%) reported in patients treated with OPDIVO plus YERVOY (n=547) vs sunitinib (n=535) were fatigue (58% vs 69%), rash (39% vs 25%), diarrhea (38% vs 58%), musculoskeletal pain (37% vs 40%), pruritus (33% vs 11%), nausea (30% vs 43%), cough (28% vs 25%), pyrexia (25% vs 17%), arthralgia (23% vs 16%), decreased appetite (21% vs 29%), dyspnea (20% vs 21%), and vomiting (20% vs 28%). 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 and dyspnea 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, 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 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 a separate Phase 3 study 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 U.S. Full Prescribing Information for OPDIVO and YERVOY, including Boxed WARNING regarding immune-mediated adverse reactions for YERVOY.

Checkmate 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 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 032–small cell lung cancer; Checkmate 025–previously treated renal cell carcinoma; Checkmate 214–previously untreated renal cell carcinoma, in combination with YERVOY; 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; Checkmate 238–adjuvant treatment of melanoma.

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.

New Biomarker Research Builds Further Understanding of Tebentafusp (IMCgp100) Mechanism of Action, Link to Clinical Activity in Advanced Melanoma

On June 3, 2019 Immunocore reported Monotherapy treatment with the first-in-class ImmTAC molecule tebentafusp (IMCgp100) induced an immunologically potent response in patients with advanced uveal and cutaneous melanoma, according to new data presented by Immunocore Limited at the 2019 American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Annual Meeting (Press release, Immunocore, JUN 3, 2019, View Source [SID1234536819]). The biomarker research provides additional insight into the mechanism of action of tebentafusp in patients with advanced melanoma and demonstrates the potential association with clinical outcomes.

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"We are pleased to share new biomarker data from our tebentafusp clinical trial programme, which add to the growing body of evidence supporting the investigational agent’s clinical activity and reinforce the potential applicability of our ImmTAC technology," said Bahija Jallal, Chief Executive Officer of Immunocore. "We recognise the immediate need for new treatment options for people living with metastatic uveal melanoma and are working to advance tebentafusp as quickly and safely as possible."

Tebentafusp is a novel bispecific protein comprised of a soluble T cell receptor fused to an anti-CD3 immune-effector function. Tebentafusp specifically targets gp100, a lineage antigen expressed in melanocytes and melanoma, and is the first molecule developed using Immunocore’s ImmTAC technology platform designed to redirect T cells to recognise and kill tumour cells. Pivotal tebentafusp clinical trials are currently underway in metastatic uveal melanoma, a rare form of eye cancer.

"Biomarker research is critical to informing the development of new immunotherapy agents, particularly in difficult-to-treat cancers like uveal melanoma," said Mark R Middleton, MD, lead study investigator and Head of the Department of Oncology at the University of Oxford. "These data build a deeper understanding of how the immune system responds to tebentafusp and provide insights needed to inform future enhancements."

ASCO Presentations

Researchers analysed data from the Phase 1 first-in-human clinical trial assessing the safety and tolerability of tebentafusp in 84 HLA-A2+ patients with metastatic melanoma (n=61 cutaneous, n=19 uveal, n=4 other) resistant to standard treatment regimens or for which no standard treatments exist.

Pharmacodynamic Effect of IMCgp100 (TCR–CD3 bispecific) on Peripheral Cytokines and Association with Overall Survival in Patients with Advanced Melanoma

The goal of this analysis was to understand the biological effects of tebentafusp and an association with anti-tumour activity. The findings showed an association between a greater increase in serum CXCL10, a chemokine for T cells expressing CXCR3 receptor, and a greater transient reduction in peripheral CXCR3+CD8+ T cells, tumour shrinkage and longer overall survival (OS). A greater reduction in peripheral CXCR3+ CD8+ T cells also appeared to be associated with tumour shrinkage and longer OS, and changes in tumour biopsies were consistent with T cell infiltration and immune activation.

Relationship Between Clinical Efficacy and AEs of IMCgp100, a Novel Bispecific TCR–anti-CD3, in Patients with Advanced Melanoma

In this analysis, adverse events (AEs) were consistent with tebentafusp’s proposed mechanism of action with most AEs relating to on-target (gp100) off-tumour activity (e.g., rash, pruritus), or were cytokine mediated (e.g., pyrexia, hypotension). There appears to be an association between the timing of onset and resolution of these AEs and certain cytokines in the blood. AEs were generally manageable with standard clinical interventions. An association was also observed between OS and LDH ≤ULN and any-grade rash occurring within 21 days.

"Further understanding of the potential association of mechanism of action with safety and activity is important in the success of novel immune therapies," said Omid Hamid, MD, study investigator and Chief of Translational Research and Immunotherapy at The Angeles Clinic. "These data support the continued investigation of tebentafusp in cutaneous melanoma in addition to the pivotal trials in metastatic uveal melanoma already underway."

More information about the tebentafusp clinical trials can be found at View Source

– Ends –

About Tebentafusp

Tebentafusp is a novel bispecific protein comprised of a soluble T cell receptor fused to an anti-CD3 immune-effector function. Tebentafusp specifically targets gp100, a lineage antigen expressed in melanocytes and melanoma, and is the first molecule developed using Immunocore’s ImmTAC technology platform designed to redirect T cells to recognise and kill tumour cells. Tebentafusp has Fast Track Designation and Orphan Drug Designation in the US and Promising Innovative Medicine designation under the UK Early Access to Medicines Scheme for metastatic uveal melanoma. For more information about enrolling tebentafusp clinical trials for metastatic uveal melanoma, please visit ClinicalTrials.gov (NCT03070392).

Imbruvica®▼ (ibrutinib) Long-Term Data from Two Pivotal Phase 3 Studies at ASCO and EHA Demonstrate Sustained Efficacy and Safety in Patients with Chronic Lymphocytic Leukaemia (CLL)

On June 3, 2019 The Janssen Pharmaceutical Companies of Johnson & Johnson reported long-term follow-up results from two pivotal Phase 3 studies of Imbruvica (ibrutinib) in patients with chronic lymphocytic leukaemia (CLL), a type of non-Hodgkin lymphoma and the most common form of leukaemia in adults.3 One set of data – results from the RESONATETM study (PCYC-1112) at a median follow-up of 65.3 months (range, 0.3–71.6) – showed treatment with ibrutinib monotherapy sustained progression-free survival (PFS) benefit compared to ofatumumab in patients with previously treated CLL, with a median PFS of 44.1 months versus 8.1 months, respectively.1 A consistent PFS benefit with ibrutinib was observed across all baseline disease and patient characteristics, including patients with genomically defined high-risk disease.1 The median overall survival (OS) was 67.7 months in the ibrutinib arm and 65.1 months in the ofatumumab arm, without censoring or adjustment for crossover from ofatumumab to ibrutinib.1 Additionally, no new safety events were identified in this long-term follow-up.1 The RESONATETM results were presented today at the 55th American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Annual Meeting in Chicago, and selected for the Best of ASCO (Free ASCO Whitepaper) 2019 Meetings, which highlight cutting-edge science and reflect leading research in oncology (abstract #7510).

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The second data set – results from the RESONATETM-2 study (PCYC-1115/1116) at a median follow-up of five years (range, 0.1–66 months) – demonstrated durable PFS with ibrutinib monotherapy (estimate of 70 percent) versus chlorambucil (estimate of 12 percent) in patients with previously untreated CLL, including those with genomically defined high-risk disease.2 The OS benefit was also sustained in patients treated with ibrutinib (estimate of 83 percent) versus chlorambucil (estimate of 68 percent). In addition, no new safety concerns were observed.2 The RESONATETM-2 data will be presented in full during an oral presentation at the 24th European Hematology Association (EHA) (Free EHA Whitepaper) Congress in Amsterdam on Friday, June 14 (abstract #S107).2

"Since its first European approval in 2014, ibrutinib has redefined treatment paradigms for CLL, and these study results offer further evidence to both clinicians and patients of the longer-term benefits and tolerability ibrutinib offers as a single agent," said Peter Hillmen, MB ChB, PhD, Professor of Experimental Haematology and Honorary Consultant Haematologist at Leeds Teaching Hospitals NHS Trust, United Kingdom and investigator in both studies. "Not only is superior progression-free survival and overall survival maintained with ibrutinib follow-up, but frequently the quality of response rates improves from partial to complete over time."

"Ibrutinib has already impacted more than 140,000 patients, and the RESONATE and RESONATE-2 long-term follow-up studies provide important data in support of its continued use in the effective management of CLL," said Dr Patrick Laroche, Europe, Middle East and Africa (EMEA) Haematology Therapeutic Area Lead, Janssen-Cilag France. "We are excited to explore how best this BTK inhibitor can continue to enhance the lives of people living with CLL, both as a monotherapy and in newer combination regimens, and as an alternative option to intensive chemotherapy."

Ibrutinib, a Bruton’s tyrosine kinase (BTK) inhibitor, is jointly developed and commercialised by Janssen Biotech, Inc., and Pharmacyclics LLC, an AbbVie company.

ASCO: RESONATETM six-year follow-up of ibrutinib monotherapy in patients with previously treated CLL (Abstract #7510)1

The RESONATETM (PCYC-1112) study evaluated patients with previously treated CLL who were randomised to receive ibrutinib 420 mg orally once daily until disease progression or intravenous ofatumumab for up to 24 weeks (n=391); 86 percent and 79 percent, respectively, were in the genomically defined high-risk population (17p deletion, 11q deletion, TP53 mutation, and/or unmutated IGHV).1 Long-term efficacy endpoints were investigator-assessed.1

With up to six years of follow-up (median 65.3 months, range, 0.3–71.6 months), extended ibrutinib treatment showed sustained efficacy in patients with previously treated CLL, including patients with high-risk genomic features, with no new safety signals over long-term therapy.1

Of the patients receiving ofatumumab, 68 percent crossed over to receive ibrutinib.1 A statistically significant PFS benefit was sustained with ibrutinib versus ofatumumab, with median PFS of 44.1 months versus 8.1 months (hazard ratio [HR]=0.15; 95 percent confidence interval [CI], 0.11–0.20, P˂0.0001), and was consistent across baseline subgroups.1 Median PFS in the genomically defined high-risk population was 44.1 months versus 8.0 months on ibrutinib versus ofatumumab (HR=0.11; 95 percent CI, 0.08–0.15).1

The median OS was 67.7 months in the ibrutinib arm and 65.1 months in the ofatumumab arm, without censoring or adjustment for crossover from ofatumumab to ibrutinib (HR=0.81; 95 percent CI, 0.60-1.09).1 Sensitivity analysis adjusting for crossover based on the rank-preserving structural failure time (RPSFT) method also showed continued OS benefit with ibrutinib compared to ofatumumab (HR=0.24; 95 percent CI, 0.11-0.55).1 The overall response rate (ORR) with ibrutinib was 91 percent, with 11 percent achieving a complete response (CR/CR with incomplete blood recovery [CRi]).1 Median treatment duration of ibrutinib was 41 months; 40 percent of patients received ibrutinib for longer than four years.1

The adverse event (AE) profile with ibrutinib remained consistent with prior studies.1 The prevalance of any Grade 3 or higher AEs with ibrutinib decreased after the first year and remained stable thereafter. All Grade and Grade 3 or higher AEs, respectively, included hypertension (21 percent; 9 percent) and atrial fibrillation (12 percent; 6 percent); major haemorrhage occurred in 10 percent.1,4 The most common reasons for ibrutinib discontinuation prior to study closure were progressive disease (37 percent) and AEs (16 percent).1

EHA: RESONATETM-2 five-year follow-up of ibrutinib monotherapy in patients with previously untreated CLL (Abstract #S107)2

The RESONATETM-2 (PCYC-1115/1116) study evaluated patients 65 years or over with previously untreated CLL, without 17p deletion, who received ibrutinib 420 mg orally once-daily continuously until disease progression or unacceptable toxicity, or chlorambucil 0.5–0.8 mg/kg orally for up to 12 cycles (n=269).2

Results from this five-year follow-up showed ibrutinib monotherapy sustained PFS and OS benefits for patients with CLL versus chlorambucil, including those with high-risk genomic features.2 More than half of patients remain on long-term continuous treatment with ibrutinib. Additionally, no new safety concerns were identified.2

At a median follow-up of 60 months (range, 0.1–66 months), the PFS benefits were sustained in patients treated with ibrutinib (estimate of 70 percent) versus chlorambucil (estimate of 12 percent) (HR=0.15; 95 percent CI, 0.10–0.22).2 The OS benefits were also sustained in patients treated with ibrutinib (estimate of 83 percent) versus chlorambucil (estimate of 68 percent).2 Ibrutinib improved PFS compared with chlorambucil in patients with unmutated IGHV (HR=0.11; 95 percent CI, 0.06–0.19) and in patients with 11q deletion (HR=0.03; 95 percent CI, 0.01–0.11).2 Additionally, 57 percent of patients crossed over from chlorambucil to ibrutinib after progression.2

As a composite, patients with high-risk genomics (unmutated IGHV, 11q deletion, and/or TP53 mutation) had superior outcomes with ibrutinib compared with chlorambucil (PFS: HR=0.08; 95 percent CI, 0.05–0.15; OS: HR=0.37; 95 percent CI, 0.18–0.74).2 With ibrutinib, the ORR including partial response with lymphocytosis was 92 percent and the CR/CRi rate increased over time to 30 percent (from 11 percent CR/CRi at primary analysis at median follow-up of 18 months).2

The most common Grade 3 or higher AEs included neutropenia (13 percent), pneumonia (12 percent), hypertension (8 percent), anaemia (7 percent), hyponatremia (6 percent), atrial fibrillation (5 percent), and cataract (5 percent), with rates of most events decreasing over time.2 Dose reductions due to Grade 3 or higher AEs decreased over time. Benefit with ibrutinib treatment continued in 58 percent of patients who remained on therapy at the time of this analysis.2

#ENDS#

About ibrutinib

Ibrutinib is a first-in-class Bruton’s tyrosine kinase (BTK) inhibitor, which works by forming a strong covalent bond with BTK to block the transmission of cell survival signals within the malignant B-cells.5 By blocking this BTK protein, ibrutinib decreases survival and migration of B lymphocytes, thereby delaying the progression of the cancer.6

Ibrutinib is currently approved in Europe for:7

Chronic lymphocytic leukaemia (CLL): As a single agent for the treatment of adult patients with previously untreated CLL, and as a single agent or in combination with bendamustine and rituximab (BR) for the treatment of adult patients with CLL who have received at least one prior therapy.
Mantle cell lymphoma (MCL): Adult patients with relapsed or refractory mantle cell lymphoma.
Waldenström’s macroglobulinemia (WM): Adult patients who have received at least one prior therapy or in first-line treatment for patients unsuitable for chemo-immunotherapy.
Ibrutinib is approved in more than 90 countries, and, to date, has been used to treat more than 140,000 patients worldwide across its approved indications.

The most common adverse reactions seen with ibrutinib include diarrhoea, neutropenia, haemorrhage (e.g., bruising), musculoskeletal pain, nausea, rash, and pyrexia.7

For a full list of side effects and information on dosage and administration, contraindications and other precautions when using ibrutinib please refer to the Summary of Product Characteristics for further information.

Celgene Updated Analysis of Jakarta2 Fedratinib Study Shows Clinically Meaningful Responses in Patients Previously Treated for Myelofibrosis with Ruxolitinib

On June 3, 2019 Celgene Corporation (NASDAQ: CELG) reported an updated analysis of data from the Phase 2 JAKARTA2 clinical study demonstrating clinically meaningful response rates with investigational fedratinib in patients with myelofibrosis previously treated with ruxolitinib (Press release, Celgene, JUN 3, 2019, View Source [SID1234536802]). This updated analysis of fedratinib employed intent-to-treat (ITT) principles and utilized a narrower definition of ruxolitinib relapsed, refractory, or intolerant patients. Results were shared in a poster presentation today at the 2019 American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Annual Meeting in Chicago.

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In the ITT population (n=97), the proportion of patients who exhibited a 35% or greater reduction in spleen volume at end of cycle 6 was 31% (95% CI 22, 41). Of these 97 patients, 79 (81%) met the narrower criteria for ruxolitinib resistance or intolerance. In this cohort, the proportion of patients who exhibited a 35% or greater reduction in spleen volume at end of cycle 6 was 30% (95% CI 21, 42), consistent with the response rate observed in the ITT population. In addition, the proportion of patients who exhibited a 50% or greater symptom response rate was 27% in both the ITT population (95% CI, 18, 37) and the patients in the analysis of the narrower criteria (95% CI, 17, 39).

The most common grade 3–4 hematologic abnormalities were anemia (46%) and thrombocytopenia (24%). Most common non-hematologic treatment-emergent adverse events (TEAEs) in all treated patients were diarrhea (62%), nausea (56%), vomiting (41%), and constipation (21%).

"Myelofibrosis is a serious and rare bone marrow disorder for which there is only one currently approved treatment option," said Claire N. Harrison, M.D., Deputy Clinical Director of Cancer and Haematology at a NHS Foundation Trust Hospital in London. "Patients may become intolerant or resistant to the therapy. These updated results show meaningful reductions in spleen volume and symptoms and reinforce the potential of fedratinib in these difficult-to-treat patients who no longer receive benefit from ruxolitinib."

"Fedratinib has the potential to be the first new treatment option since 2011 for patients with myelofibrosis," said Dr. Alise Reicin, President, Global Clinical Development, for Celgene. "Patients with myelofibrosis who are relapsed, refractory or intolerant to ruxolitinib represent a population of particularly high unmet medical need and we are committed to bringing this important treatment option forward."

About JAKARTA2
JAKARTA2 is a Phase 2, multicenter, open label, single-arm trial that evaluated the efficacy of a once daily dose of fedratinib (400 mg starting dose) in patients previously treated with ruxolitinib and with a diagnosis of intermediate-1 with symptoms, intermediate-2 or high-risk primary myelofibrosis, post-polycythemia vera myelofibrosis or post-essential thrombocythemia myelofibrosis. The study included 97 subjects across 40 sites in 10 countries.

The primary endpoint was spleen volume response rate, defined as the proportion of patients who had a reduction in spleen volume of at least 35% as measured by MRI or CT scan after six one-month treatment cycles. Secondary endpoints included symptom response rate, defined as the proportion of patients with a 50% or greater reduction in Total Symptom Score after six one-month treatment cycles as measured by the modified Myelofibrosis Symptoms Assessment Form (MFSAF) v2.0 diary.

In August 2017, the FDA removed the clinical hold on the fedratinib development program that it had placed in 2013, following potential cases of Wernicke’s encephalopathy (WE) being reported in eight out of 877 patients receiving one or more doses (less than 1% of treated patients). WE is a neurological condition induced by vitamin B1 deficiency that manifests itself in the form of paralysis of one or more extraocular muscles, lack of muscle coordination and confusion. Rates of WE range from 0.8% to 2.8% of the general population, as determined by autopsy studies, however the incidence in MPN patients is reportedly three times greater.1

About Fedratinib
Fedratinib is an oral kinase inhibitor with activity against wild type and mutationally activated Janus Associated Kinase 2 (JAK2) and FMS-like tyrosine kinase 3 (FLT3). Fedratinib is a JAK2-selective inhibitor with higher potency for JAK2 over family members JAK1, JAK3 and TYK2. Abnormal activation of JAK2 is associated with myeloproliferative neoplasms (MPNs), including myelofibrosis and polycythemia vera. In cell models expressing mutationally active JAK2, fedratinib reduced phosphorylation of signal transducer and activator of transcription (STAT3/5) proteins, inhibited cell proliferation, and induced apoptotic cell death. In mouse models of JAK2V617F-driven myeloproliferative disease, fedratinib blocked phosphorylation of STAT3/5, improved survival and disease-associated signs (including white blood cell counts, hematocrit, splenomegaly, and fibrosis).

Fedratinib is an investigational compound that is not approved for any use in any country.

About Myelofibrosis
Myelofibrosis is a serious and rare bone marrow disorder that disrupts the body’s normal production of blood cells. Bone marrow is gradually replaced with fibrous scar tissue, which limits the ability of the bone marrow to make red blood cells.2 The disorder can lead to anemia, weakness, fatigue and swelling of the spleen and liver, among other symptoms.2 Myelofibrosis is classified as a myeloproliferative neoplasm, a group of rare blood cancers that derive from blood-forming stem cells.3am In the U.S. myelofibrosis occurs in 1.5 of every 100,000 people each year,4 and between 16,000 and 18,500 people are living with the disease.5 Both men and women are affected and, while the disease can affect people of all ages, the median age at diagnosis ranges from 60 to 67 years.6,7