Scorpion Therapeutics Presents Initial Clinical Data From Its Phase 1/2 Trial of STX-478 Demonstrating Potentially Best-in-Class Mutant-Selective PI3Kα Inhibition for the Treatment of Advanced Solid Tumors at ESMO Congress 2024

On September 15, 2024 Scorpion Therapeutics, Inc. ("Scorpion"), a pioneering clinical-stage oncology company dedicated to transforming the lives of cancer patients by redefining the frontier of precision oncology, reported initial, first-in-human clinical results from its Phase 1/2 study of STX-478 in advanced solid tumor patients in a Proffered Paper late-breaking session at the European Society for Medical Oncology ("ESMO") Congress 2024 in Barcelona, Spain (Press release, Scorpion Therapeutics, SEP 15, 2024, View Source [SID1234646635]). Initial Phase 1 monotherapy data for STX-478, an oral, once-daily, mutant-selective, allosteric PI3Kα inhibitor, demonstrated potentially best-in-class PI3Kα inhibition, with anti-tumor activity observed in multiple cancer types, including HR+/HER2- breast cancer (BC), gynecological tumors, and other solid tumors. STX-478 was well-tolerated, including in pre-diabetic, diabetic and heavily pre-treated patients and showed no significant wild-type-mediated toxicities.

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"Approved and investigational non-selective PI3Kα inhibitors, as well as approved AKT inhibitors, have shown clinical benefit in HR+/HER2- breast cancer in Phase 3 studies. However, their therapeutic benefit is limited by PI3Kα pathway inhibition in normal tissues, resulting in dose-limiting toxicities, including hyperglycemia, rash and diarrhea"

"We are pleased to report the initial Phase 1/2 trial results of STX-478, which was designed as the first PI3Kα inhibitor to fully maximize the potential of pathway inhibition in patients with solid tumors and is the first program emerging from our next-generation precision oncology discovery engine," said Adam Friedman, M.D., Ph.D., Chief Executive Officer of Scorpion. "STX-478 demonstrates potent and potentially best-in-class PI3Kα pathway inhibition as established by our early, differentiated signals of monotherapy efficacy, which exceed benchmarks of other pathway inhibitors. We also are encouraged by early safety data that demonstrates minimal evidence of wild-type PI3Kα-mediated toxicities, with no patients discontinuing STX-478 due to treatment-related adverse events. Together, these results suggest that our highly-selective mutant PI3Kα inhibitor could overcome the limitations of currently available pathway inhibitors and, consequently, meaningfully improve clinical outcomes for patients with PI3Kα kinase or helical domain-mutated solid tumors. We look forward to continuing to progress our clinical-stage and discovery pipeline as we work to broaden the reach and impact of precision oncology for patients with high unmet medical need."

"Approved and investigational non-selective PI3Kα inhibitors, as well as approved AKT inhibitors, have shown clinical benefit in HR+/HER2- breast cancer in Phase 3 studies. However, their therapeutic benefit is limited by PI3Kα pathway inhibition in normal tissues, resulting in dose-limiting toxicities, including hyperglycemia, rash and diarrhea," said Alberto J. Montero, M.D., affiliated with University Hospitals Cleveland, and trial investigator. "By selectively targeting mutant PI3Kα, one of the most prevalent oncogenes in cancer, STX-478 has the potential to improve clinical outcomes and quality of life for patients during treatment. In the trial, STX-478 achieves exposures capable of driving several-fold deeper target inhibition than other PI3Kα inhibitors, while avoiding their toxicities, even with the majority of patients having prediabetes or diabetes. I am excited about the early results in patients with breast cancer and other solid tumors and look forward to further clinical development."

Initial Data from the Phase 1/2 Study of STX-478 in Advanced Solid Tumors

In the Proffered Paper presented at ESMO (Free ESMO Whitepaper), 61 patients with both kinase and helical domain PIK3CA mutations were treated with STX-478 at doses ranging from 20mg to 160mg daily, as of the data cutoff on June 21, 2024. Of the enrolled patients, 29 patients had HR+/HER2- BC and 32 patients had other solid tumors. Additionally, 54% of patients were pre-diabetic or diabetic, and 41% of BC patients had a prior PI3Kα pathway inhibitor. 97% of BC patients had previously received a CDK4/6 inhibitor. Enrolled patients were heavily pre-treated with a median of three prior lines of therapy (ranging from 1-7).

Pharmacokinetic and Selectivity Profile

Preliminary pharmacokinetic analysis supports once-daily dosing of STX-478, with dose proportional and linear STX-478 plasma exposure and an estimated half-life of approximately 60 hours. At doses ≥ 40mg QD, STX-478 exceeded the average exposures needed for in vivo efficacy in mouse models and achieved target coverage several fold higher than other approved or investigational PI3Kα inhibitors. STX-478 reached a maximum tolerated dose (MTD) of 100mg daily.

Preliminary Safety Data

STX-478 was well-tolerated in a high-risk population, which included diabetics, pre-diabetics and patients intolerant to other PI3Kα pathway inhibitors, populations excluded from other PI3Kα studies. Most treatment-related adverse events (TRAEs) were mild-to-moderate and transient; TRAEs of ≥ 15% included: fatigue (30%), hyperglycemia (23%), nausea (20%) and diarrhea (15%). No Grade ≥ 3 PI3Kα WT toxicity adverse events (hyperglycemia, diarrhea and rash) were observed, and minimal changes in fasting glucose were observed at any STX-478 dose level.

No patients discontinued STX-478 due to a TRAE, and two dose-limiting toxicities observed at 160mg rapidly resolved after a brief dose interruption.

Initial Clinical Activity Data

As of the data cutoff in 43 evaluable patients, the confirmed/unconfirmed overall response rate (ORR) was 23% (5/22) in HR+/HER2- metastatic breast cancer; 21% (9/43) in all tumor types; and 44% (4/9) in gynecologic cancers, which compares favorably to approved PI3Kα pathway inhibitors (monotherapy ORR 4 – 6%). All responses were confirmed following the data cutoff. The disease control rate across tumors was 67%. Tumor reductions were seen in 72% of all patients as a monotherapy agent across all dose levels. Multiple responses were seen in both PI3Kα kinase and helical domain mutant tumors at multiple dose levels, and many responses were sustained and deepened over several months of therapy.

Mutant PIK3CA circulating tumor DNA levels markedly decreased on therapy in 86% of patients (19/22 evaluable patients).

The presentation will be available here on Scorpion’s website following the conclusion of the session.

"Scorpion is dedicated to bringing highly-selective small molecules to cancer patients as quickly as possible, and the presentation of these data is a testament to the team’s exceptional execution and the productivity of our fully-integrated discovery organization," said Mark Chao, M.D., Ph.D., Chief Medical Officer of Scorpion. "These exciting data bolster our confidence in the profile of STX-478 and in the continued advancement of the trial as we actively enroll patients into ongoing multiple expansion cohorts across a range of solid tumors and in combinations with active standard of care agents including fulvestrant and CDK4/6 inhibitors in HR+/HER2- breast cancer and lay the groundwork for the rapid advancement of this novel treatment. We would like to thank the patients, caregivers and investigators for sharing our commitment to advancing next-generation cancer treatments, and we look forward to providing updates from this study at future medical meetings."

About STX-478

STX-478 was designed to improve outcomes in patients harboring PI3Kα mutations, one of the most prevalent drivers of cancer, occurring in over 166,000 patients per year with breast, gynecological and other solid tumors in the United States alone. In preclinical models, STX-478 demonstrated robust activity across a range of both kinase and helical domain PI3Kα mutations while sparing wild-type PI3Kα activity in normal tissues; previous generations of non-selective PI3Kα inhibitors have limited patient benefit due to these on-target toxicities. Scorpion’s Phase 1/2 clinical trial is a multi-center, global, open-label study designed to evaluate the safety and tolerability of STX-478 in multiple ascending doses for patients with locally advanced or metastatic HR+/HER2- breast cancer and other solid tumors driven by PI3Kα mutations. The program has rapidly advanced into multiple expansion cohorts across a range of solid tumors and in breast cancer as monotherapy and in combinations with fulvestrant and CDK4/6 inhibitors. To learn more about the first-in-human trial of STX-478, please visit this page.

DS-9606 Shows Promising Preliminary Clinical Activity in Patients with Advanced Solid Tumors

On September 15, 2024 Daiichi Sankyo reported initial results from dose escalation in the firstin-human phase 1 trial of DS-9606 suggest early promising clinical activity in patients with advanced solid tumors known to express Claudin-6 (CLDN6) (Press release, Daiichi Sankyo, SEP 15, 2024, View Source [SID1234646622]). These data were presented today during a Proffered Paper session (610O) at the 2024 European Society for Medical Oncology (#ESMO24).

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DS-9606 is an investigational CLDN6 directed, modified pyrrolobenzodiazepine (PBD) antibody drug conjugate (ADC) from Daiichi Sankyo’s (TSE: 4568) second antibody drug conjugate (ADC) platform.

CLDN6 is expressed in several tumor types including endometrial, ovarian and gastric cancers, germ cell tumors (GCT) and non-small cell lung cancer (NSCLC), and can be associated with poor prognosis, making CLDN6 a promising therapeutic target. 1-6

Preliminary safety and efficacy results of DS-9606 were reported from the dose escalation part of the phase 1 trial in 53 heavily pretreated patients, including 19 with ovarian, 11 with GCT, seven with gastric/esophageal, seven with NSCLC, five with pancreatic, two with breast and two with endometrial cancer. Patients received a median of four prior therapies (range, 1- 9).

The safety and tolerability of DS-9606 were evaluated at increasing dose levels from 0.016 mg/kg to 0.225 mg/kg with no dose-limiting toxicities observed and no treatment withdrawals due to treatmentrelated adverse events. The most common treatment emergent adverse events (TEAEs) of any grade in ≥7.5% of patients were nausea (18.9%), fatigue (18.9%), anemia (17.0%), abdominal pain (15.1%), constipation (13.2%), vomiting (13.2%), diarrhea (11.3%), pyrexia (9.4%), weight loss (9.4%), decreased appetite (9.4%), arthralgia (9.4%), cough (9.4%), sinusitis (7.5%), dyspnea (7.5%) and pleural effusion (7.5%). Grade 3 or higher TEAEs occurred in 30.2% of patients (n=16) and included anemia (3.8%), abdominal pain (3.8%), pleural effusion (3.8%), constipation (1.9%), vomiting (1.9%) and diarrhea (1.9%). When grouped, skin-associated events (17%) were also identified as common TEAEs with the majority being grade 1 except for one grade 2 (skin hyperpigmentation) and one grade 3 (rash) event, which resulted in a dose reduction for each patient.

Preliminary efficacy results were observed in doses greater than or equal to 0.072 mg/kg (except 0.190 mg/kg due to immature data) and included four confirmed objective responses including two responses observed in patients with GCT and one response each in patients with gastric/esophageal cancer and NSCLC. Of seven evaluable patients with GCT, the two patients with confirmed objective response remained on treatment for more than six months and five had a greater than or equal to 90% reduction in alpha-fetoprotein and human chorionic gonadotropin tumor markers. Twenty one of the 53 patients are still receiving treatment with DS-9606 as of data cutoff of June 14, 2024.

"These initial results of DS-9606 are encouraging, particularly those observed in germ cell tumors which are known to express CLDN6 and where the majority of patients experienced a reduction in tumor markers," said Manish R. Patel, MD, Director of Drug Development, Florida Cancer Specialists and Sarah Cannon Research Institute. "Enrollment continues into the study in order to determine the recommended dose for expansion and better understand how advanced solid tumors may respond to DS-9606."

"While these results provide preliminary proof-of-concept for DS-9606, further clinical evaluation is warranted across different tumor types that are known to express CLDN6," said Ken Takeshita, MD, Global Head, R&D, Daiichi Sankyo. "We continue to apply our science and technology expertise to DS-9606, which has been developed from our second antibody drug conjugate platform in order to create potentially new and innovative treatments for certain patients with cancer."

About the Phase 1 Trial
The multicenter, open-label, first-in-human phase 1 trial is evaluating the safety, tolerability and efficacy of DS-9606 in adult patients with advanced solid tumors that are known to express CLDN6.

The dose escalation part of the study is assessing the safety and tolerability of increasing doses of DS-9606 to determine the maximum tolerated dose and/or the recommended dose for expansion. Dose expansion will follow to further evaluate the safety and tolerability as well as efficacy of DS-9606 at the recommended dose in patients with advanced solid tumors in cohorts that will be determined based on data obtained in dose escalation.

The study will evaluate safety and efficacy endpoints, including objective response rate, duration of response and progression-free survival per investigator assessment. Pharmacokinetic and immunogenicity endpoints will also be evaluated.

The phase 1 trial is currently enrolling patients in Europe and North America. For more information, please visit ClinicalTrials.gov.

About Claudin-6 (CLDN6)
Claudin-6 (CLDN6), a member of the claudin family, is a gene that encodes a protein that plays an important role in cell production and differentiation.7,8 CLDN6 is expressed in several tumor types including endometrial, ovarian and gastric cancers, GCT and NSCLC, and can be associated with poor prognosis, making CLDN6 a promising therapeutic target.1-6

About DS-9606
DS-9606 is an investigational CLDN6 directed, modified PBD ADC. Designed using Daiichi Sankyo’s second ADC technology platform, DS-9606 consists of a humanized CLDN6 monoclonal antibody, developed in collaboration with Tokyo University of Pharmacy and Life Sciences, attached to a modified PBD payload. DS-9606 is being evaluated in a phase 1 clinical trial in several advanced solid tumors that are known to express CLDN6.

About the ADC Portfolio of Daiichi Sankyo
The Daiichi Sankyo ADC portfolio consists of seven ADCs in clinical development crafted from two
distinct ADC technology platforms discovered in-house by Daiichi Sankyo.

The ADC platform furthest in clinical development is Daiichi Sankyo’s DXd ADC Technology where each ADC consists of a monoclonal antibody attached to a number of topoisomerase I inhibitor payloads (an exatecan derivative, DXd) via tetrapeptide-based cleavable linkers. The DXd ADC portfolio currently consists of ENHERTU, a HER2 directed ADC, and datopotamab deruxtecan (Dato-DXd), a TROP2 directed ADC, which are being jointly developed and commercialized globally with AstraZeneca. Patritumab deruxtecan (HER3-DXd), a HER3 directed ADC, ifinatamab deruxtecan (I-DXd), a B7-H3 directed ADC, and raludotatug deruxtecan (R-DXd), a CDH6 directed ADC, are being jointly developed and commercialized globally with Merck. DS-3939, a TA-MUC1 directed ADC, is being developed by Daiichi Sankyo.

The second Daiichi Sankyo ADC platform consists of a monoclonal antibody attached to a modified PBD payload. DS-9606, a CLDN6 directed PBD ADC, is the first of several planned ADCs in clinical development utilizing this platform.

Datopotamab deruxtecan, ifinatamab deruxtecan, patritumab deruxtecan, raludotatug deruxtecan, DS3939 and DS-9606 are investigational medicines that have not been approved for any indication in any country. Safety and efficacy have not been established.

Imfinzi perioperative regimen reduced the risk of recurrence by 32% and the risk of death by 25% vs. neoadjuvant chemotherapy alone in muscle-invasive bladder cancer in the NIAGARA Phase III trial

On September 15, 2024 AstraZeneca reported positive results from the NIAGARA Phase III trial showed AstraZeneca’s Imfinzi (durvalumab) in combination with chemotherapy demonstrated a statistically significant and clinically meaningful improvement in the primary endpoint of event-free survival (EFS) and the key secondary endpoint of overall survival (OS) versus neoadjuvant chemotherapy for patients with muscle-invasive bladder cancer (MIBC) (Press release, AstraZeneca, SEP 15, 2024, View Source [SID1234646625]). Patients were treated with Imfinzi in combination with neoadjuvant chemotherapy before radical cystectomy (surgery to remove the bladder) followed by Imfinzi as adjuvant monotherapy.

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These results will be presented today during a Presidential Symposium at the 2024 European Society for Medical Oncology (ESMO) (Free ESMO Whitepaper) Congress in Barcelona, Spain (abstract #LBA5) and simultaneously published in The New England Journal of Medicine.

In a planned interim analysis, patients treated with the Imfinzi perioperative regimen showed a 32% reduction in the risk of disease progression, recurrence, not undergoing surgery, or death versus the comparator arm (based on EFS hazard ratio [HR] of 0.68; 95% confidence interval [CI] 0.56-0.82; p<0.0001). Estimated median EFS was not yet reached for the Imfinzi arm versus 46.1 months for the comparator arm. An estimated 67.8% of patients treated with the Imfinzi regimen were event free at two years compared to 59.8% in the comparator arm.

Results from the key secondary endpoint of OS showed the Imfinzi perioperative regimen reduced the risk of death by 25% versus neoadjuvant chemotherapy with radical cystectomy (based on OS HR of 0.75; 95% CI 0.59-0.93; p=0.0106). Median survival was not yet reached for either arm. An estimated 82.2% of patients treated with the Imfinzi regimen were alive at two years compared to 75.2% in the comparator arm.

Professor Thomas Powles, MD, Director of Barts Cancer Centre (QMUL), London, UK, and principal investigator in the NIAGARA trial, said: "Neoadjuvant chemotherapy with bladder removal has been the mainstay of treatment for patients with muscle-invasive bladder cancer for nearly twenty years; however, half of patients still go on to suffer a devastating recurrence. Adding durvalumab before and after surgery significantly reduced the chance of recurrence and extended survival, a significant advance with the potential to transform the standard of care for these patients who desperately need better outcomes."

Susan Galbraith, Executive Vice President, Oncology R&D, AstraZeneca, said: "The NIAGARA data showed compelling improvements in both event-free survival and overall survival, with more than 80 per cent of patients treated with the Imfinzi perioperative regimen alive at two years. This is the first immunotherapy regimen to significantly extend overall survival in muscle-invasive bladder cancer, and it further validates our strategy to move cancer treatment as early as possible to maximise benefit for patients."

Bristol Myers Squibb Presents Landmark 10-Year Follow-Up Data from CheckMate -067 Which Showed Continued Durable Long-Term Survival Benefit with Opdivo® plus Yervoy® in Advanced Melanoma

On September 15, 2024 Bristol Myers Squibb reported 10-year follow-up data from CheckMate -067, a randomized, double-blind, Phase 3 clinical trial, which showed continued durable improvement in survival with first-line Opdivo (nivolumab) plus Yervoy (ipilimumab) therapy and Opdivo monotherapy, versus Yervoy alone, in patients with previously untreated advanced or metastatic melanoma (Press release, Bristol-Myers Squibb, SEP 15, 2024, View Source;067-Which-Showed-Continued-Durable-Long-Term-Survival-Benefit-with-Opdivo-plus-Yervoy-in-Advanced-Melanoma/default.aspx [SID1234646608]).

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With a minimum follow up of 10 years, median overall survival (OS) was 71.9 months with Opdivo plus Yervoy (95% CI: 38.2-114.4) – the longest reported median OS in a Phase 3 advanced melanoma trial – 36.9 months with Opdivo (95% CI: 28.2-58.7) and 19.9 months with Yervoy (95% CI: 16.8-24.6). These data are being presented today and were included in an official press conference at the European Society for Medical Oncology (ESMO) (Free ESMO Whitepaper) Congress 2024 in Barcelona, Spain (LBA43), as well as simultaneously published in The New England Journal of Medicine .

Among all randomized patients in the trial, 64% of patients who received the combination, 50% of Opdivo -treated patients and 33% of Yervoy -treated patients did not receive subsequent systemic therapy at the 10-year follow up mark.

"These data continue to demonstrate the impressive and durable clinical benefit of nivolumab in combination with ipilimumab with survival curves remaining stable for some years now," said James Larkin, Ph.D., FRCP, Consultant Medical Oncologist, Department of Medical Oncology, The Royal Marsden. "Remarkably, 43% of patients treated with nivolumab and ipilimumab are alive ten years later and many did not need subsequent therapy."

In addition, at 10 years of follow up, the Opdivo plus Yervoy combination showed melanoma-specific survival (MSS) rates of 52% (median not reached) compared to 44% (median of 49.4 months) and 23% (median of 21.9 months) among patients treated with Opdivo alone and Yervoy alone, respectively.

"Just over a decade ago, an advanced melanoma diagnosis meant that you likely only had months to live. The dual immunotherapy combination of Opdivo plus Yervoy has radically changed this outlook for many of these patients," said Dana Walker, M.D., M.S.C.E., vice president, global program lead, melanoma and gastrointestinal and genitourinary cancers, Bristol Myers Squibb. "Our goal was – and still is today – to redefine survival expectations for patients with melanoma; these data demonstrate our commitment to that objective and continue to provide hope."

Durable, sustained clinical benefit was also observed with Opdivo plus Yervoy or Opdivo alone across relevant subgroups, including in patients with BRAF mutation and wild-type tumors. Among patients with BRAF -mutant tumors, the rate of OS at 10 years was 52% (95% CI: 42-62) in patients who received Opdivo plus Yervoy , 37% (95% CI: 27-46) for Opdivo alone, and 25% (95% CI: 17-34) for Yervoy alone. In patients with BRAF wild-type tumors, the rate of OS at 10 years was 39% (95% CI: 32-46) in patients who received Opdivo plus Yervoy , 37% (95% CI: 31-44) for Opdivo alone and 17% (95% CI: 12-23) for Yervoy alone.

At 10 years of follow up, the objective response rate (ORR) was higher for the two Opdivo groups, in combination with Yervoy and alone, at 58.3% and 44.9%, respectively than the Yervoy group at 19.0%. The median duration of response (DoR) was not reached for those who received Opdivo plus Yervoy, while the median DoR was 103.2 months for Opdivo -treated patients and 19.2 months for Yervoy -treated patients. 1

The safety profile for Opdivo plus Yervoy was consistent with prior findings, with no new safety signals observed and no additional treatment-related deaths occurring since the prior three analyses. Grade 3/4 treatment-related adverse events were reported in 62.6% of patients in the combination group, 24.6% of patients in the Opdivo group, and 29.6% of patients in the Yervoy group.

Bristol Myers Squibb thanks the patients and investigators who have participated in the CheckMate -067 clinical trial.

About CheckMate -067

CheckMate -067 is a Phase 3, double-blind, randomized trial that evaluated the combination of Opdivo plus Yervoy or Opdivo monotherapy versus Yervoy monotherapy in 945 patients with previously untreated advanced melanoma. Patients in the combination group (n=314) received Opdivo 1 mg/kg plus Yervoy 3 mg/kg every three weeks (Q3W) for four doses followed by Opdivo 3 mg/kg every two weeks (Q2W). Patients in the Opdivo monotherapy group (n=316) received Opdivo 3 mg/kg Q2W plus placebo. Patients in the Yervoy monotherapy group (n=315) received Yervoy 3 mg/kg Q3W for four doses plus placebo. Patients were treated until progression or unacceptable toxic effects. Overall survival (OS) and progression-free survival (PFS) were dual primary endpoints of the trial. Secondary endpoints included objective response rates (ORR), descriptive efficacy assessments and safety.

About Melanoma

Melanoma is a form of skin cancer characterized by the uncontrolled growth of pigment-producing cells (melanocytes) located in the skin. Metastatic melanoma is the deadliest form of the disease and occurs when cancer spreads beyond the surface of the skin to other organs. The incidence of melanoma has been increasing steadily for the last 30 years. Globally, the World Health Organization estimates that by 2035, melanoma incidence will reach 424,102, with 94,308 related deaths. In the United States, 100,640 new diagnoses of melanoma and about 8,290 related deaths are estimated for 2024. Melanoma can be mostly treatable when caught in its very early stages; however, survival rates can decrease as the disease progresses.

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 understanding of causal human biology, cutting-edge capabilities and differentiated research programs uniquely position the company to approach 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. 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.

About Yervoy

Yervoy is a recombinant, human monoclonal antibody that binds to the cytotoxic T-lymphocyte-associated antigen-4 (CTLA-4). CTLA-4 is a negative regulator of T-cell activity. Yervoy binds to CTLA-4 and blocks the interaction of CTLA-4 with its ligands, CD80/CD86. Blockade of CTLA-4 has been shown to augment T-cell activation and proliferation, including the activation and proliferation of tumor infiltrating T-effector cells. Inhibition of CTLA-4 signaling can also reduce T-regulatory cell function, which may contribute to a general increase in T-cell responsiveness, including the anti-tumor immune response. On March 25, 2011, the U.S. Food and Drug Administration (FDA) approved Yervoy 3 mg/kg monotherapy for patients with unresectable or metastatic melanoma. Yervoy is approved for unresectable or metastatic melanoma in more than 50 countries. There is a broad, ongoing development program in place for Yervoy spanning multiple tumor types.

INDICATIONS

OPDIVO (nivolumab), as a single agent, is indicated for the treatment of adult and pediatric patients 12 years and older with unresectable or metastatic melanoma.

OPDIVO (nivolumab), in combination with YERVOY (ipilimumab), is indicated for the treatment of adult and pediatric patients 12 years and older with unresectable or metastatic melanoma.

OPDIVO is indicated for the adjuvant treatment of adult and pediatric patients 12 years and older with completely resected Stage IIB, Stage IIC, Stage III, or Stage IV melanoma.

OPDIVO (nivolumab), in combination with platinum-doublet chemotherapy, is indicated as neoadjuvant treatment of adult patients with resectable (tumors ≥4 cm or node positive) non-small cell lung cancer (NSCLC).

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 adult 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 adult 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 adult patients with advanced renal cell carcinoma (RCC).

OPDIVO (nivolumab) is indicated for the treatment of adult 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 adult 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 adult 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.

OPDIVO (nivolumab), as a single agent, is indicated for the adjuvant treatment of adult patients with urothelial carcinoma (UC) who are at high risk of recurrence after undergoing radical resection of UC.

OPDIVO (nivolumab), in combination with cisplatin and gemcitabine, is indicated as first-line treatment for adult patients with unresectable or metastatic urothelial carcinoma.

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

OPDIVO (nivolumab) is indicated for the adjuvant treatment of completely resected esophageal or gastroesophageal junction cancer with residual pathologic disease in adult patients who have received neoadjuvant chemoradiotherapy (CRT).

OPDIVO (nivolumab), in combination with fluoropyrimidine- and platinum-containing chemotherapy, is indicated for the first-line treatment of adult patients with unresectable advanced or metastatic esophageal squamous cell carcinoma (ESCC).

OPDIVO (nivolumab), in combination with YERVOY (ipilimumab), is indicated for the first-line treatment of adult patients with unresectable advanced or metastatic esophageal squamous cell carcinoma (ESCC).

OPDIVO (nivolumab), in combination with fluoropyrimidine- and platinum- containing chemotherapy, is indicated for the treatment of adult patients with advanced or metastatic gastric cancer, gastroesophageal junction cancer, and esophageal adenocarcinoma.

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 patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg every 3 weeks, immune- mediated pneumonitis occurred in 7% (31/456) of patients, including Grade 4 (0.2%), Grade 3 (2.0%), and Grade 2 (4.4%). 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%).

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 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%).

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%).

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%).

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, other transplant (including corneal graft) 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 every 3 weeks, 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.

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 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 Checkmate 816, serious adverse reactions occurred in 30% of patients (n=176) who were treated with OPDIVO in combination with platinum-doublet chemotherapy. Serious adverse reactions in >2% included pneumonia and vomiting. No fatal adverse reactions occurred in patients who received OPDIVO in combination with platinum-doublet chemotherapy. 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 274, serious adverse reactions occurred in 30% of patients receiving OPDIVO (n=351). The most frequent serious adverse reaction reported in ≥2% of patients receiving OPDIVO was urinary tract infection. Fatal adverse reactions occurred in 1% of patients; these included events of pneumonitis (0.6%). In Checkmate 901, serious adverse reactions occurred in 48% of patients receiving OPDIVO in combination with chemotherapy. The most frequent serious adverse reactions reporting in ≥2% of patients who received OPDIVO with chemotherapy were urinary tract infection (4.9%), acute kidney injury (4.3%), anemia (3%), pulmonary embolism (2.6%), sepsis (2.3%), and platelet count decreased (2.3%). Fatal adverse reactions occurred in 3.6% of patients who received OPDIVO in combination with chemotherapy; these included sepsis (1%). OPDIVO and/or chemotherapy were discontinued in 30% of patients and were delayed in 67% of patients for an adverse reaction. 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 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 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%). In Checkmate 577, serious adverse reactions occurred in 33% of patients receiving OPDIVO (n=532). A serious adverse reaction reported in ≥2% of patients who received OPDIVO was pneumonitis. A fatal reaction of myocardial infarction occurred in one patient who received OPDIVO. In Checkmate 648, serious adverse reactions occurred in 62% of patients receiving OPDIVO in combination with chemotherapy (n=310). The most frequent serious adverse reactions reported in ≥2% of patients who received OPDIVO with chemotherapy were pneumonia (11%), dysphagia (7%), esophageal stenosis (2.9%), acute kidney injury (2.9%), and pyrexia (2.3%). Fatal adverse reactions occurred in 5 (1.6%) patients who received OPDIVO in combination with chemotherapy; these included pneumonitis, pneumatosis intestinalis, pneumonia, and acute kidney injury. In Checkmate 648, serious adverse reactions occurred in 69% of patients receiving OPDIVO in combination with YERVOY (n=322). The most frequent serious adverse reactions reported in ≥2% who received OPDIVO in combination with YERVOY were pneumonia (10%), pyrexia (4.3%), pneumonitis (4.0%), aspiration pneumonia (3.7%), dysphagia (3.7%), hepatic function abnormal (2.8%), decreased appetite (2.8%), adrenal insufficiency (2.5%), and dehydration (2.5%). Fatal adverse reactions occurred in 5 (1.6%) patients who received OPDIVO in combination with YERVOY; these included pneumonitis, interstitial lung disease, pulmonary embolism, and acute respiratory distress syndrome. In Checkmate 649, serious adverse reactions occurred in 52% of patients treated with OPDIVO in combination with chemotherapy (n=782). The most frequent serious adverse reactions reported in ≥2% of patients treated with OPDIVO in combination with chemotherapy were vomiting (3.7%), pneumonia (3.6%), anemia (3.6%), pyrexia (2.8%), diarrhea (2.7%), febrile neutropenia (2.6%), and pneumonitis (2.4%). Fatal adverse reactions occurred in 16 (2.0%) patients who were treated with OPDIVO in combination with chemotherapy; these included pneumonitis (4 patients), febrile neutropenia (2 patients), stroke (2 patients), gastrointestinal toxicity, intestinal mucositis, septic shock, pneumonia, infection, gastrointestinal bleeding, mesenteric vessel thrombosis, and disseminated intravascular coagulation. In Checkmate 76K, serious adverse reactions occurred in 18% of patients receiving OPDIVO (n=524). Adverse reactions which resulted in permanent discontinuation of OPDIVO in >1% of patients included arthralgia (1.7%), rash (1.7%), and diarrhea (1.1%). A fatal adverse reaction occurred in 1 (0.2%) patient (heart failure and acute kidney injury). The most frequent Grade 3-4 lab abnormalities reported in ≥1% of OPDIVO-treated patients were increased lipase (2.9%), increased AST (2.2%), increased ALT (2.1%), lymphopenia (1.1%), and decreased potassium (1.0%).

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 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 Checkmate 816, the most common (>20%) adverse reactions in the OPDIVO plus chemotherapy arm (n=176) were nausea (38%), constipation (34%), fatigue (26%), decreased appetite (20%), and rash (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 274, the most common adverse reactions (≥20%) reported in patients receiving OPDIVO (n=351) were rash (36%), fatigue (36%), diarrhea (30%), pruritus (30%), musculoskeletal pain (28%), and urinary tract infection (22%).In Checkmate 901, the most common adverse reactions (≥20%) were nausea, fatigue, musculoskeletal pain, constipation, decreased appetite, rash, vomiting, and peripheral neuropathy. In Checkmate 142 in MSI-H/dMMR mCRC patients receiving OPDIVO as a single agent (n=74), 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 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 Attraction-3, the most common adverse reactions (≥20%) in OPDIVO-treated patients (n=209) were rash (22%) and decreased appetite (21%). In Checkmate 577, the most common adverse reactions (≥20%) in patients receiving OPDIVO (n=532) were fatigue (34%), diarrhea (29%), nausea (23%), rash (21%), musculoskeletal pain (21%), and cough (20%). In Checkmate 648, the most common adverse reactions (≥20%) in patients treated with OPDIVO in combination with chemotherapy (n=310) were nausea (65%), decreased appetite (51%), fatigue (47%), constipation (44%), stomatitis (44%), diarrhea (29%), and vomiting (23%). In Checkmate 648, the most common adverse reactions reported in ≥20% of patients treated with OPDIVO in combination with YERVOY were rash (31%), fatigue (28%), pyrexia (23%), nausea (22%), diarrhea (22%), and constipation (20%). In Checkmate 649, the most common adverse reactions (≥20%) in patients treated with OPDIVO in combination with chemotherapy (n=782) were peripheral neuropathy (53%), nausea (48%), fatigue (44%), diarrhea (39%), vomiting (31%), decreased appetite (29%), abdominal pain (27%), constipation (25%), and musculoskeletal pain (20%). In Checkmate 76K, the most common adverse reactions (≥20%) reported with OPDIVO (n=524) were fatigue (36%), musculoskeletal pain (30%), rash (28%), diarrhea (23%) and pruritis (20%).

Please see U.S. Full Prescribing Information for OPDIVO and YERVOY .

Clinical Trials and Patient Populations

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 649–previously untreated advanced or metastatic gastric cancer, gastroesophageal junction and esophageal adenocarcinoma; Checkmate 577–adjuvant treatment of esophageal or gastroesophageal junction cancer; Checkmate 238–adjuvant treatment of patients with completely resected Stage III or Stage IV melanoma; Checkmate 76K– adjuvant treatment of patients 12 years of age and older with completely resected Stage IIB or Stage IIC melanoma; Checkmate 274–adjuvant treatment of urothelial carcinoma; Checkmate 275–previously treated advanced or metastatic urothelial carcinoma; Checkmate 142–MSI-H or dMMR metastatic colorectal cancer, as a single agent or in combination with YERVOY; Checkmate 142–MSI-H or dMMR metastatic colorectal cancer, as a single agent or in combination with YERVOY; Attraction-3–esophageal squamous cell carcinoma; Checkmate 648–previously untreated, unresectable advanced recurrent or metastatic esophageal squamous cell carcinoma; Checkmate 648–previously untreated, unresectable advanced recurrent or metastatic esophageal squamous cell carcinoma; Checkmate 040–hepatocellular carcinoma, in combination with YERVOY; Checkmate 743–previously untreated unresectable malignant pleural mesothelioma, in combination with YERVOY; 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 816–neoadjuvant non-small cell lung cancer, in combination with platinum-doublet chemotherapy; Checkmate 901–Adult patients with unresectable or metastatic urothelial carcinoma; Checkmate 141–recurrent or metastatic squamous cell carcinoma of the head and neck; Checkmate 025–previously treated renal cell carcinoma; Checkmate 214–previously untreated renal cell carcinoma, in combination with YERVOY; Checkmate 9ER–previously untreated renal cell carcinoma, in combination with cabozantinib; Checkmate 205/039–classical Hodgkin lymphoma

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.

Investigational Rinatabart Sesutecan (Rina-S) Shows Promising Anti-Tumor Activity as Single Agent in Heavily Pretreated Patients with Ovarian and Endometrial Cancers in Phase 1/2 Clinical Trial

On September 15, 2024 Genmab A/S reported new data from the Phase 1/2 study of rinatabart sesutecan (Rina-S), an investigational folate receptor-alpha (FRα)-targeted, Topo1 antibody-drug conjugate (ADC), demonstrated a confirmed objective response rate (ORR) of 50.0% (95% CI) in ovarian cancer patients treated with Rina-S 120 mg/m2 once every 3 weeks (Q3W), regardless of FRα expression levels (Press release, Genmab, SEP 15, 2024, View Source [SID1234646610]). These data were from the dose expansion part of a multi-part study evaluating the safety and efficacy of single-agent Rina-S in ovarian cancer (OC) and endometrial cancer (EC). These results, and additional findings from the study, were presented at the European Society of Medical Oncology (ESMO) (Free ESMO Whitepaper) Congress 2024 (ESMO) (Free ESMO Whitepaper) in Barcelona, Spain.

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Part B of the study randomized 42 previously-treated patients with histologically or cytologically confirmed advanced OC (epithelial ovarian cancer, primary peritoneal cancer or fallopian tube cancer) to Rina-S 100 mg/m2 (n=22) or Rina-S 120 mg/m2 (n=20). Ninety-five percent of patients in the 120 mg/m2 group were identified as platinum-resistant ovarian cancer (PROC) as were 90.9% of patients in the 100 mg/m2 group. In patients receiving Rina-S 100 mg/m2, results showed a confirmed ORR of 18.2% compared with 50.0% among patients receiving 120 mg/m2. Results for 100 mg/m2 and 120 mg/m2 respectively also included: complete response: 0 (0%) and 1 (5.6%); partial response in 4 (18.2%) and 8 patients (44.4%); stable disease in 15 (68.2%) and 7 patients (38.9%); disease progression in 3 patients (13.6%) and 1 patient (5.6%). Only one patient in the 120 mg/m2 treatment arm was not evaluable. With a median on study follow-up of 24 weeks, all confirmed responses with the 120 mg/m2 dose were ongoing at the time of data cutoff. The disease control rate (DCR) was 86.4% and 88.9% (95% CI: 65.3-98.6), respectively. Based on these results, Rina-S 120 mg/m2 has been selected for further evaluation in a Phase 3 trial for patients with advanced ovarian cancer, which is expected to start in 2024.

"Ovarian cancer presents a significant challenge, especially for those with advanced or recurrent cases, where treatment options and prognosis are often limited," said Elizabeth Lee, MD, a medical oncologist in the gynecologic oncology program at Dana-Farber. "The encouraging Phase 1/2 data for Rina-S demonstrates the potential for future treatment options for patients. We are looking forward to additional data from tumor-specific dose expansion cohorts."

In this Phase 1/2 study, common treatment-emergent adverse events (TEAEs) included anemia, neutropenia, nausea, thrombocytopenia, leukopenia, fatigue, vomiting, alopecia, and diarrhea. Dose reductions and treatment discontinuations were infrequent. No signals of ocular toxicities, neuropathy or interstitial lung disease (ILD) were observed.

"We are encouraged by the data from this ongoing Phase 1/2 trial evaluating Rina-S in a patient population that is in need of new therapeutic options and believe the data support the potential for Rina-S to demonstrate anti-tumor activity beyond first-generation folate receptor-alpha based therapies," said Jan van de Winkel, Ph.D., President and Chief Executive Officer of Genmab. "Genmab is pioneering technologies that aim to transform the treatment of cancer and other serious diseases. We are committed to evaluating the full potential utility of Rina-S in patients with ovarian, endometrial and other solid tumor cancers."

About Rina-S Phase 1/2 Clinical Trial (NCT05579366)
This open-label, multicenter Phase 1/2 study is designed to evaluate the safety and efficacy of rinatabart sesutecan (Rina-S) as a single agent Q3W at various doses in solid tumors that are known to express FRα. The study consists of multiple parts including Part A dose-escalation cohorts; Part B tumor-specific monotherapy dose-expansion cohorts; Part C platinum-resistant ovarian cancer (PROC) cohort; and Part D combination therapy cohorts.

Part A looked at dose escalation in patients with locally advanced and/or metastatic solid tumors, including epithelial ovarian cancer, endometrial cancer, breast cancer, non-small cell lung cancer, and mesothelioma. In patients with OC (n=32) and EC (n=11), treatment with Rina-S 100-120 mg/m2 (n=23 and n=5, respectively) demonstrated a confirmed Objective Response Rate (ORR) of 30.8% (95% CI: 14.3-51.8) with Partial Responses (PR) in 8 patients (30.8%), Stable Disease (SD) in 15 patients (57.7%), and Progressive Disease (PD) in 3 patients (11.5%). The Disease Control Rate (DCR) was 88.5% (95% CI: 69.8-97.6), and the median Duration of Response (DOR) was 35.3 weeks (95% CI: 20.14-NE).

Part B includes the B1 cohort, which is a dose expansion study in patients with histologically or cytologically confirmed advanced OC (epithelial ovarian cancer, primary peritoneal cancer, or fallopian tube cancer). Patients were randomized 1:1 to 100 mg/m2 and 120 mg/m2 dose groups with a median age ranging from 62.5 to 64.5 years across both groups. Ninety-point nine percent of patients in the 100 mg/m2 group were identified as platinum-resistant ovarian cancer (PROC) as were 95% of patients in the 120 mg/m2 group. Study participants were previously treated with a median of 3 prior lines of therapy (range 1-4) including bevacizumab (90.9% in the 100 mg/m2 group and 90.0% in the 120 mg/m2 group respectively), PARP inhibitors (68.2%; 65%) and mirvetuximab soravtansin (18.2%; 19%). Responses in patients with OC were observed across FRα expression levels.

About Ovarian Cancer
Ovarian cancer is a major global health issue, with over 320,000 new cases diagnosed annually worldwide.i It ranks as the eighth most common cancer and the eighth leading cause of cancer-related deaths among women globally.ii The disease is often diagnosed at an advanced stage due to its subtle and non-specific symptoms, such as abdominal bloating, pelvic pain and difficulty eating.iii Platinum-based chemotherapy, often in combination with targeted therapies and surgery, has been the standard treatment in ovarian cancer across all stages.iv,v Approximately 70-90% of women with advanced-stage ovarian cancer worldwide experience a recurrence after initial treatment.vi Ovarian cancer has a low five-year survival rate, which varies significantly by region, but generally hovers around 30-50%.vii,viii

About Rinatabart Sesutecan (Rina-S; GEN1184)
Rinatabart Sesutecan (Rina-S; GEN1184) is a clinical-stage, FRα-targeted, Topo1 ADC, currently in Phase 2 development for the treatment of ovarian cancer and other FRα-expressing solid tumors. Based on the data from the ongoing clinical trials, Genmab intends to broaden the development plans for Rina-S within ovarian cancer and other FRα-expressing solid tumors. In January 2024, the U.S. Food and Drug Administration granted Fast Track designation to Rina-S for the treatment of patients with FRα-expressing high-grade serous or endometrioid platinum-resistant ovarian cancer.