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Recruiting Phase 3 NCT06246916

NCT06246916 A Study With Combinations of Anti-LAG-3 and Anti-PD-1 Antibodies in Adult Participants With Advanced or Metastatic Melanoma (Harmony Head-to-Head)

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Clinical Trial Summary
NCT ID NCT06246916
Status Recruiting
Phase Phase 3
Sponsor Regeneron Pharmaceuticals
Condition Melanoma
Study Type INTERVENTIONAL
Enrollment 560 participants
Start Date 2024-09-09
Primary Completion 2027-03-22

Eligibility & Interventions

Sex All sexes
Min Age 18 Years
Max Age N/A
Study Type INTERVENTIONAL
Interventions
fianlimabcemiplimabrelatlimab+nivolumab

Eligibility Fast-Check

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What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 3 trials are large pivotal studies comparing the treatment to current standard of care or placebo. Your participation directly contributes to the evidence needed for regulatory approval.

This trial targets 560 participants in total. It began in 2024-09-09 with a primary completion date of 2027-03-22.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

This study is researching an experimental drug called fianlimab (also known as REGN3767), combined with another medication called cemiplimab (also known as REGN2810), called "study drugs". The study is focused on patients with a type of skin cancer known as melanoma. The aim of the study is to see how safe and effective the combination of fianlimab and cemiplimab is in treating melanoma, in comparison with the combination of two medications, relatlimab and nivolumab, commercialized under the brand name Opdualag™ and approved for the treatment of melanoma in adults and children. The study is looking at several other research questions, including: * What side effects may happen from taking the study drugs. * How much study drug is in the blood at different times. * Whether the body makes antibodies against the study drugs (which could make the drug less effective or could lead to side effects)

Eligibility Criteria

Key Inclusion Criteria: 1. Participants with histologically confirmed unresectable stage III and stage IV (metastatic) melanoma per American Joint Committee on Cancer (AJCC), eighth revised edition. 2. Participants must not have received prior systemic therapy for unresectable or metastatic melanoma as described in the protocol. 3. Measurable disease per RECIST version 1.1. 4. Eastern Cooperative Oncology Group (ECOG) performance status (PS) ≤1 5. Adequate bone marrow, hepatic, and kidney function 6. Known B-Rapidly Accelerated Fibrosarcoma protein (BRAF) V600 mutation status or submitted sample for BRAF V600 mutation assessment as described in the protocol Key Exclusion Criteria: Medical Conditions: 1. Uveal, acral or mucosal melanoma. 2. Ongoing or recent (within 2 years) evidence of an autoimmune disease that required systemic treatment with immunosuppressive agents as described in the protocol. 3. Uncontrolled infection with human immunodeficiency virus (HIV), hepatitis B (HBV), or hepatitis C virus (HCV) infection; or diagnosis of immunodeficiency that is related to, or results in chronic infection. Mild cancer-related immunodeficiency (such as immunodeficiency treated with gamma globulin and without chronic or recurrent infection) is allowed. Prior/Concomitant Therapy: 4. Prior immune checkpoint inhibitor therapy other than anti-PD1/PD-L1 as described in the protocol 5. Systemic immune suppression as described in the protocol. Other Comorbidities: 6. Participants with a history of myocarditis. 7. Troponin T (TnT) or troponin I (TnI) \>2x institutional upper limit of normal (ULN). 8. Active or untreated brain metastases or spinal cord compression as described in the protocol. Note: Other protocol-defined Inclusion/ Exclusion Criteria apply.

Contact & Investigator

Central Contact

Clinical Trials Administrator

✉ clinicaltrials@regeneron.com

📞 844-734-6643

Principal Investigator

Clinical Trial Management

STUDY DIRECTOR

Regeneron Pharmaceuticals

Frequently Asked Questions

Who can join the NCT06246916 clinical trial?

This trial is open to participants of all sexes, aged 18 Years or older, studying Melanoma. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT06246916 trial and what does that mean for participants?

Phase 3 trials are large-scale studies comparing the new treatment to existing standards of care or a placebo. They provide the evidence needed for regulatory approval. This trial targets 560 participants.

Is NCT06246916 currently recruiting?

Yes, NCT06246916 is actively recruiting participants. Contact the research team at clinicaltrials@regeneron.com for enrollment information.

Where is the NCT06246916 trial being conducted?

This trial is being conducted at Chandler, United States, Gilbert, United States, Tucson, United States, Little Rock, United States and 11 additional locations.

Who is sponsoring the NCT06246916 clinical trial?

NCT06246916 is sponsored by Regeneron Pharmaceuticals. The principal investigator is Clinical Trial Management at Regeneron Pharmaceuticals. The trial plans to enroll 560 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: September 2026  ·  Data Methodology