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Testing Treatment With Ipilimumab and Nivolumab Compared to Treatment With Ipilimumab Alone in Advanced Melanoma

A Phase II Randomized Study of Nivolumab (NSC-748726) With Ipilimumab (NSC-732442) or Ipilimumab Alone in Advanced Melanoma Patients Refractory to an Anti-PD1 or Anti-PD-L1 Agent

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03033576
Enrollment
94
Registered
2017-01-27
Start date
2017-10-23
Completion date
2024-03-20
Last updated
2025-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Clinical Stage III Cutaneous Melanoma AJCC v8, Clinical Stage IV Cutaneous Melanoma AJCC v8, Melanoma of Unknown Primary, Mucosal Melanoma, Unresectable Cutaneous Melanoma, Unresectable Melanoma

Brief summary

This phase II trial studies how well ipilimumab with or without nivolumab work in treating patients with melanoma that is stage IV or stage III and cannot be removed by surgery. Immunotherapy with monoclonal antibodies, such as ipilimumab and nivolumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread.

Detailed description

PRIMARY OBJECTIVE: I. To compare progression free survival (PFS) of patients with advanced melanoma refractory to an anti-PD-1 or anti-PD-L1 agent, treated with combination therapy ipilimumab plus nivolumab versus ipilimumab alone. SECONDARY OBJECTIVES: I. To estimate difference in T-cell infiltrate between on-study biopsy samples of patients who respond to combination therapy (including confirmed and unconfirmed, complete and partial response per Response Evaluation Criteria in Solid Tumors \[RECIST\] 1.1, in each treatment arm). II. To evaluate the objective response rate (ORR), defined as confirmed complete or partial response per RECIST 1.1, in each treatment arm. III. To evaluate the overall survival (OS) of patients in each treatment arm. IV. To evaluate the toxicity profile of patients in each treatment arm. TRANSLATIONAL OBJECTIVES: I. To assess the marginal prognostic value of baseline T-cell density, T-cell receptor (TCR) clonality, mutational load, messenger ribonucleic acid (mRNA) and other phenotypical expression levels, and circulating tumor deoxyribonucleic acid (DNA) in terms of response. II. To assess the joint prognostic value of T-cell density, TCR clonality, and mutational load, mRNA and other phenotypical expression levels, and circulating tumor DNA in terms of response. III. To identify T-cell poor subtype(s) that are associated with response. OUTLINE: Patients are randomized to 1 of 2 arms. ARM I: Patients receive ipilimumab intravenously (IV) over 90 minutes on day 1. Treatment repeats every 21 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. ARM II: Patients receive nivolumab IV over 30 minutes and ipilimumab IV over 90 minutes on day 1. Treatment repeats every 21 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Patients then receive nivolumab IV over 30 minutes on day 1. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up every 6 months for 2 years and then annually for 1 year.

Interventions

BIOLOGICALIpilimumab

Given IV

BIOLOGICALNivolumab

Given IV

Sponsors

National Cancer Institute (NCI)
Lead SponsorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients must have pathologically confirmed melanoma that is either stage IV or unresectable stage III; patients may have primaries of cutaneous, mucosal or unknown origin; patients with uveal (ocular) primary are not eligible * Patients must have measurable disease per RECIST 1.1; all measurable lesions must be assessed by physical examination, computed tomography (CT) scans or magnetic resonance imaging (MRI) within 28 days prior to registration; if the only measurable disease is cutaneous or subcutaneous, lesions must be at least 10 mm in greatest dimension and able to be serially recorded using calipers and photographs; tests used to assess non-measurable disease must have been performed within 42 days prior to registration; all disease must be assessed and documented on the Baseline Tumor Assessment Form * Patients with central nervous system (CNS) metastases must have all lesions adequately treated with stereotactic radiation therapy, craniotomy, Gamma Knife (registered trademark) therapy, or whole brain radiotherapy, with no subsequent evidence of CNS progression; patients must not have required steroids for at least 14 days prior to registration; patients with a history of central nervous system metastases must have MRI of the brain within 42 days prior to registration * Patients must have had prior treatment with anti-PD1 or anti-PD-L1 agents and had documented disease progression per the treating physician either while on these agents or after stopping therapy with these agents without intervening therapy; patients who received adjuvant therapy for previously resected disease with PD-1 or PD-L1 agents may also be eligible if disease recurrence occurred while still receiving the PD-1 or PD-L1 therapy and no intervening therapy was received; patients must have discontinued anti-PD-1 or anti-PD-L1 therapy at least 21 days prior to registration * Patients must be \>= 18 years of age * Patients must have Zubrod performance status of =\< 2 * Patients must have complete history and physical examination within 28 days prior to registration * Absolute neutrophil count (ANC) \>= 1,500/mcL (within 28 days prior to registration) * Hemoglobin \>= 8 g/dL (within 28 days prior to registration) * Platelets \>= 100,000/mcL (within 28 days prior to registration) * Total bilirubin =\< 2.5 x institutional upper limit of normal (IULN) (except patients with Gilbert's syndrome) (within 28 days prior to registration) * Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) both =\< 5 x IULN (within 28 days prior to registration) * Serum creatinine =\< 2.0 x IULN within 28 days prior to registration * Patients with a known history of human immunodeficiency virus (HIV) must have CD4 count \>= institutional lower limit of normal within 28 days prior to registration * Patients with a known history of congestive heart failure (CHF), cardiomyopathy, myocarditis, myocardial infarction (MI), exposure to cardiotoxic medications, or with a clinical history suggestive of the above must have an electrocardiography (EKG) and echocardiogram (ECHO) performed within 42 days prior to registration and as clinically indicated while on treatment * Patients with new symptoms of congestive heart failure (CHF), cardiomyopathy, myocarditis, myocardial infarction (MI), or exposure to cardiotoxic medications must have a cardiology consultation, creatinine phosphokinase (CPK), and troponin testing at prestudy and as clinically indicated * Males who are sexually active with women of reproductive potential must have agreed to use birth control throughout the study and for 7 months after completion of protocol treatment; in addition to routine contraceptive methods, effective contraception also includes heterosexual celibacy and surgery intended to prevent pregnancy (vasectomy); if at any point a previously celibate patient chooses to become heterosexually active during or within 7 months after completion of protocol treatment, he is responsible for beginning effective contraceptive measures * Patients must submit archival tissue (if available) for translational medicine; patients must also be willing to undergo biopsies and submit tissue and blood for translational medicine * Patients must be offered the opportunity to participate in specimen banking of leftover tissue for future research * Patients must be informed of the investigational nature of this study and must sign and give written informed consent in accordance with institutional and federal guidelines * As a part of the Oncology Patient Enrollment Network (OPEN) registration process the treating institution's identity is provided in order to ensure that the current (within 365 days) date of institutional review board approval for this study has been entered in the system

Exclusion criteria

* Patients must not have achieved a partial or complete response to the anti-PD-1 or anti-PD-L1 agents prior to progression per the treating physician * Patients must not have had any systemic therapy, including anti-PD-1 or anti-PD-L1 agents, within 21 days prior to registration * Patients must not have had prior radiation therapy within 14 days prior to registration * Patients must not have had: * Prior treatment with ipilimumab or other CTLA-4 antagonists * Systemic therapy between progression on the anti-PD-1 or anti-PD-L1 agents and registration * Note: Systemic therapy (including BRAF-targeting agents) prior to anti-PD-1 or anti-PD-L1 therapy is allowed * Patients must not be planning to require any additional form of systemic anti-tumor therapy while on protocol treatment * Patients must not have known active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection prior to registration * Patients must not have an active infection requiring systemic therapy at time of registration * Patients must not have organ allografts * Patients must not have received systemic treatment with corticosteroids (\> 10 mg daily prednisone or equivalent) or other immunosuppressive medications within 14 days prior to registration; inhaled or topical steroids, and adrenal replacement doses =\< 10 mg daily prednisone or equivalent are permitted in the absence of active autoimmune disease * Patients must not have a history of immune-mediated pneumonitis or colitis that required interruption of therapy or treatment of steroids * No other prior malignancy is allowed except for the following: adequately treated basal cell or squamous cell skin cancer, in situ cervical cancer, adequately treated stage 0, I or II cancer from which the patient is currently in complete remission, or any other cancer from which the patient has been disease free for two years * Patients must not be pregnant or nursing due to risk of fetal or nursing infant harm; females of reproductive potential must have negative serum pregnancy test within 2 days prior to registration and agree to use an effective contraceptive method throughout the study and for 5 months after completion of protocol treatment; a woman is considered to be of reproductive potential if she has had menses at any time in the preceding 12 consecutive months; in addition to routine contraceptive methods, effective contraception also includes heterosexual celibacy and surgery intended to prevent pregnancy (or with a side-effect of pregnancy prevention) defined as a hysterectomy, bilateral oophorectomy or bilateral tubal ligation; if at any point a previously celibate patient chooses to become heterosexually active during or within 5 months after protocol treatment, she is responsible for beginning effective contraceptive measures

Design outcomes

Primary

MeasureTime frameDescription
Progression Free SurvivalFrom date of registration to date of first documentation of progression or symptomatic deterioration, or death due to any cause, assessed up to 3 yearsProgression-free survival (PFS) is defined as the time from date of registration to date of first documentation of progression or symptomatic deterioration, or death due to any cause. Participants last known to be alive without report of progression are censored at date of last contact. Progression is defined as either 20% increase in the sum of diameters of target measurable lesions, unequivocal progression of non-measurable disease in the opinion of the treating physician, appearance of any new lesion, or death due to disease without prior documentation of progression and without symptomatic deterioration. Symptomatic deterioration is defined as global deterioration of health status requiring discontinuation of treatment without objective evidence of progression.

Secondary

MeasureTime frameDescription
Change in CD8+ ExpressionUp to 3 yearsWill estimate the quantitative change in CD8+ expression from baseline to day 28 on-study between patients who eventually respond and patients who do not respond in the Nivolumab + Ipilimumab arm.
Overall Objective Response RateUp to 3 yearsThe overall objective response rate is defined as percentage of participants that achieved confirmed and unconfirmed, complete and partial responses. Complete response is defined as complete disappearance of all target and non-target lesions, no new lesions, and no disease related symptoms. Partial response applies only to patients with at least one measurable lesion and is defined as \>= 30% decrease of the sum of diameters of all target measurable lesions, no unequivocal progression of non-measurable disease, and no new lesions.
Overall SurvivalUp to 3 yearsOverall survival is defined as the time from randomization to the date of death from any cause.
Number of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsDuration of treatment and follow-up until death or 3 years post registrationOnly adverse events that are possibly, probably or definitely related to study drug are reported. Adverse Events (AEs) are reported by CTCAE Version 4.0.

Countries

United States

Participant flow

Recruitment details

A total of 94 participants were assessed for eligibility; 24 to the Ipilimumab arm and 70 to the Nivolumab + Ipilimumab arm. Two participants were deemed ineligible, leaving 92 eligible and analyzable participants.

Participants by arm

ArmCount
Ipilimumab
Active Comparator: Arm I (ipilimumab) Patients receive ipilimumab IV over 90 minutes on day 1. Treatment repeats every 21 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity.
23
Nivolumab + Ipilimumab
Experimental: Arm II (nivolumab, ipilimumab) Patients receive nivolumab IV over 30 minutes and ipilimumab IV over 90 minutes on day 1. Treatment repeats every 21 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Patients then receive nivolumab IV over 30 minutes on day 1. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.
69
Total92

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event420
Overall StudyCurrently on protocol therapy02
Overall StudyDeath11
Overall StudyIneligible11
Overall StudyOther, unspecified reasons04
Overall StudyPatient refusal16
Overall StudyProgression/relapse936

Baseline characteristics

CharacteristicIpilimumabNivolumab + IpilimumabTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
14 Participants34 Participants48 Participants
Age, Categorical
Between 18 and 65 years
9 Participants35 Participants44 Participants
Age, Continuous69 years64 years67 years
AJCC Melanoma Classification
Stage III
6 Participants12 Participants18 Participants
AJCC Melanoma Classification
Stage IV
17 Participants57 Participants74 Participants
Duration of prior anti-PD1/PD-L1 Therapy
< 6 Months
15 Participants44 Participants59 Participants
Duration of prior anti-PD1/PD-L1 Therapy
>= 6 Months
8 Participants25 Participants33 Participants
LDH
Elevated
6 Participants9 Participants15 Participants
LDH
LDH Not Done
12 Participants32 Participants44 Participants
LDH
Normal
5 Participants28 Participants33 Participants
Prior Adjuvant Therapy
Adjuvant BRAF/MEK
0 Participants2 Participants2 Participants
Prior Adjuvant Therapy
Adjuvant PD-1
3 Participants7 Participants10 Participants
Prior Adjuvant Therapy
No prior adjuvant therapy
17 Participants58 Participants75 Participants
Prior Adjuvant Therapy
Other Adjuvant Therapy
3 Participants2 Participants5 Participants
Prior Metastatic Therapy
Adjuvant Therapy Only
1 Participants6 Participants7 Participants
Prior Metastatic Therapy
Anti-PD-1 only
20 Participants54 Participants74 Participants
Prior Metastatic Therapy
BRAF/MEK followed by PD-1
1 Participants1 Participants2 Participants
Prior Metastatic Therapy
Other anti-PD-1 combination
1 Participants8 Participants9 Participants
Race/Ethnicity, Customized
Asian
1 Participants3 Participants4 Participants
Race/Ethnicity, Customized
Black
0 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Unknown
0 Participants2 Participants2 Participants
Race/Ethnicity, Customized
White
22 Participants63 Participants85 Participants
Sex: Female, Male
Female
8 Participants23 Participants31 Participants
Sex: Female, Male
Male
15 Participants46 Participants61 Participants
Zubrod Performance Status Score
0
15 Participants45 Participants60 Participants
Zubrod Performance Status Score
1
6 Participants20 Participants26 Participants
Zubrod Performance Status Score
2
2 Participants4 Participants6 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
14 / 2340 / 69
other
Total, other adverse events
23 / 2366 / 68
serious
Total, serious adverse events
10 / 2338 / 68

Outcome results

Primary

Progression Free Survival

Progression-free survival (PFS) is defined as the time from date of registration to date of first documentation of progression or symptomatic deterioration, or death due to any cause. Participants last known to be alive without report of progression are censored at date of last contact. Progression is defined as either 20% increase in the sum of diameters of target measurable lesions, unequivocal progression of non-measurable disease in the opinion of the treating physician, appearance of any new lesion, or death due to disease without prior documentation of progression and without symptomatic deterioration. Symptomatic deterioration is defined as global deterioration of health status requiring discontinuation of treatment without objective evidence of progression.

Time frame: From date of registration to date of first documentation of progression or symptomatic deterioration, or death due to any cause, assessed up to 3 years

Population: Only eligible participants were analyzed for PFS.

ArmMeasureValue (MEDIAN)
IpilimumabProgression Free Survival2.7 months
Nivolumab + IpilimumabProgression Free Survival3.1 months
Comparison: The statistical design assumed exponential PFS with a median of 3.0 months on the ipilimumab group (null hypothesis). The study was powered to detect a change in median PFS to 6.0 months in the combination therapy group (corresponding to an HR of 0.50). A total of 84 participants (63 randomized to combination group and 21 to ipilimumab group) with 78 events (across both groups) would provide 89% power for a one-sided alpha of 10% using a log-rank test.p-value: 0.0490% CI: [0.41, 0.97]Log Rank
Secondary

Change in CD8+ Expression

Will estimate the quantitative change in CD8+ expression from baseline to day 28 on-study between patients who eventually respond and patients who do not respond in the Nivolumab + Ipilimumab arm.

Time frame: Up to 3 years

Population: There were 83 total participants with biopsies available; 76 with a baseline biopsy and 56 with a biopsy from 28 days after start of protocol therapy. This resulted in a total of 40 paired biopsies on both arms after excluding samples that could not be analyzed because of absence of tumor due or insufficient tumor cells. Our analysis population for this outcome measure includes the 29 participants on the combination Nivolumab + Ipilimumab arm that had an analyzable paired biopsy.

ArmMeasureValue (MEAN)Dispersion
IpilimumabChange in CD8+ Expression0.4291 log10[cells per mm^2]Standard Deviation 0.821187
Nivolumab + IpilimumabChange in CD8+ Expression0.2585 log10[cells per mm^2]Standard Deviation 0.550321
OverallChange in CD8+ Expression0.3291 log10[cells per mm^2]Standard Deviation 0.667305
Secondary

Number of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study Drugs

Only adverse events that are possibly, probably or definitely related to study drug are reported. Adverse Events (AEs) are reported by CTCAE Version 4.0.

Time frame: Duration of treatment and follow-up until death or 3 years post registration

Population: Participants who received at least one dose of protocol treatment

ArmMeasureGroupValue (NUMBER)
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsAcute kidney injury0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsAdrenal insufficiency1 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsAlanine aminotransferase increased2 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsAlkaline phosphatase increased1 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsAnemia0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsAnorexia0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsArthralgia0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsAspartate aminotransferase increased2 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsAtrial fibrillation1 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsAutoimmune disorder0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsBlood bilirubin increased1 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsColitis0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsColonic perforation1 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsDehydration1 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsDiarrhea3 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsDisseminated intravascular coagulation0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsEndocrine disorders - Other, specify0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsEnterocolitis0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsFatigue2 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsFever0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsHyperglycemia1 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsHypernatremia0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsHypocalcemia0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsHypokalemia0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsHyponatremia1 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsHypophosphatemia1 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsHypotension0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsHypothyroidism0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsInfections and infestations - Other, specify0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsLung infection0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsLymphocyte count decreased0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsMetabolism and nutrition disorders - Other, specify0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsNausea0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsPain0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsPruritus0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsRash maculo-papular1 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsSyncope0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsUveitis0 Participants
IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsVomiting0 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsFever1 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsAcute kidney injury1 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsLung infection1 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsAdrenal insufficiency3 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsHyperglycemia0 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsAlanine aminotransferase increased5 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsPruritus3 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsAlkaline phosphatase increased2 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsHypernatremia1 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsAnemia4 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsLymphocyte count decreased2 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsAnorexia2 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsHypocalcemia1 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsArthralgia1 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsVomiting3 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsAspartate aminotransferase increased5 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsHypokalemia3 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsAtrial fibrillation1 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsMetabolism and nutrition disorders - Other, specify1 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsAutoimmune disorder1 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsHyponatremia4 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsBlood bilirubin increased0 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsRash maculo-papular4 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsColitis3 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsHypophosphatemia0 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsColonic perforation0 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsNausea2 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsDehydration1 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsHypotension4 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsDiarrhea9 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsUveitis1 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsDisseminated intravascular coagulation1 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsHypothyroidism1 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsEndocrine disorders - Other, specify3 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsPain2 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsEnterocolitis1 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsInfections and infestations - Other, specify1 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsFatigue4 Participants
Nivolumab + IpilimumabNumber of Participants With Gr 3 Through 5 Adverse Events That Are Related to Study DrugsSyncope1 Participants
Secondary

Overall Objective Response Rate

The overall objective response rate is defined as percentage of participants that achieved confirmed and unconfirmed, complete and partial responses. Complete response is defined as complete disappearance of all target and non-target lesions, no new lesions, and no disease related symptoms. Partial response applies only to patients with at least one measurable lesion and is defined as \>= 30% decrease of the sum of diameters of all target measurable lesions, no unequivocal progression of non-measurable disease, and no new lesions.

Time frame: Up to 3 years

Population: All eligible participants were considered analyzable for this endpoint.

ArmMeasureValue (NUMBER)
IpilimumabOverall Objective Response Rate9 percentage of participants
Nivolumab + IpilimumabOverall Objective Response Rate28 percentage of participants
Secondary

Overall Survival

Overall survival is defined as the time from randomization to the date of death from any cause.

Time frame: Up to 3 years

Population: All eligible participants were included in the overall survival analysis.

ArmMeasureValue (MEDIAN)
IpilimumabOverall Survival14.5 months
Nivolumab + IpilimumabOverall Survival22.1 months
p-value: 0.2890% CI: [0.5, 1.39]Log Rank

Source: ClinicalTrials.gov · Data processed: Apr 22, 2026