Combining fianlimab and cemiplimab for treating advanced melanoma
Official title: A Phase 3 Trial of Fianlimab (REGN3767, Anti-LAG-3) + Cemiplimab Versus Pembrolizumab in Patients With Previously Untreated Unresectable Locally Advanced or Metastatic Melanoma
Run by Regeneron Pharmaceuticals · NCT05352672 · Data updated 2026-05-14
This study is no longer in our active list. It may have stopped recruiting or finished. The details below are as of 2026-05-14 and are kept for reference. Check ClinicalTrials.gov for its current status, or see similar studies below.
This study is testing if a new combination of two drugs, fianlimab and cemiplimab, can help teenagers and adults with advanced melanoma feel better compared to a standard treatment.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 12 Years and up |
| Sex | All |
| Enrollment | 1535 (estimated) |
| Sponsor | Regeneron Pharmaceuticals Industry-sponsored |
| Drugs / interventions | chemotherapy, prednisone, fianlimab, cemiplimab, pembrolizumab |
| Locations | 219 sites (La Jolla, California and 218 other locations) |
| Trial ID | NCT05352672 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adolescents and adults aged 12 and older with unresectable Stage III or IV melanoma who have not received prior systemic therapy.
✕Probably not a fit
Patients with resectable melanoma or those who have previously received systemic therapy for advanced disease may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical study investigates the effectiveness of an experimental drug, fianlimab, in combination with cemiplimab, compared to pembrolizumab in treating unresectable locally advanced or metastatic melanoma in adolescents and adults. The study aims to evaluate the safety, efficacy, and pharmacokinetics of these treatments, as well as the immune response generated against the drugs. Participants will be monitored for side effects and the presence of antibodies against the study drugs. The study includes patients aged 12 and older who have not received prior systemic therapy for their advanced melanoma.
Why it matters
Potential benefit: If successful, this study could provide a new effective treatment option for patients with advanced melanoma.
How similar studies have gone: Other studies have shown promise with similar immunotherapy approaches, suggesting potential for success in this combination treatment.
Who can join: the full rules
Show full inclusion / exclusion criteria
Key Inclusion Criteria: 1. Age ≥12 years on the date of providing informed consent 2. Patients with histologically confirmed unresectable Stage III and Stage IV (metastatic) melanoma (AJCC, 8th revised edition) who have not received prior systemic therapy for advanced unresectable disease 1. Patients who received adjuvant and/or neoadjuvant systemic therapies are eligible if they did not have evidence of progression or recurrence of disease and/or discontinued due to occurrence of unmanageable imAEs ≥ grade 3 (with the exclusion of endocrinopathies which are fully controlled by hormone replacement) while on such therapies. Also, patients must have had a treatment-free and disease-free interval of \>6 months. Accrual of these patients is limited to approximately 10% of the total population enrolled. 2. Patients with acral and mucosal melanomas are eligible. Accrual will be limited to 10% of the total population. 3. Measurable disease per RECIST v1.1 1. Previously irradiated lesions can only be counted as target lesions if they have been demonstrated to progress and no other target lesion is available 2. Cutaneous lesions should be evaluated as non-target lesions 4. Performance status: 1. For adult patients: Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0 or 1 2. For pediatric patients: Karnofsky performance status ≥70 (patients ≥16 years) or Lansky performance status ≥70 (patients ≤16 years) 5. Anticipated life expectancy of at least 3 months Key Exclusion Criteria: 1. Uveal melanoma 2. Ongoing or recent (within 2 years) evidence of an autoimmune disease that required systemic treatment with immunosuppressive agents. The following are non-exclusionary: vitiligo, childhood asthma that has resolved, residual hypothyroidism that requires only hormone replacement, psoriasis not requiring systemic treatment. 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 4. Unknown BRAF V600 mutation status as described in the protocol 5. Systemic immune suppression: 1. Use of immunosuppressive doses of corticosteroids (\>10mg of prednisone per day or equivalent) within 14 days of the first dose of study medication. Physiologic replacement doses are allowed up to and including 10mg of prednisone/day or equivalent. Inhaled or topical steroids are permitted, if they are not for treatment of an autoimmune disorder. 2. Other clinically relevant forms of systemic immune suppression 6. Treatment with other anti-cancer therapy including immuno- therapy, chemotherapy, major surgery or biological therapy within 21 days prior to the first dose of trial treatment. Adjuvant hormonotherapy used for breast cancer or other hormone-sensitive cancers in long term remission is allowed. 7. History or current evidence of significant (CTCAE Grade ≥2) local or systemic infection (e. g., cellulitis, pneumonia, septicemia) requiring systemic antibiotic treatment within 14 days prior to the first dose of trial medication. 8. Active or untreated brain metastases or spinal cord compression. Patients with leptomeningeal disease are excluded. Patients with known brain metastases are eligible if they: 1. Received radiotherapy or another appropriate standard therapy for the brain metastases, 2. Have neurologically returned to baseline (except for residual signs and symptoms related to the CNS treatment) for at least 14 days prior to enrollment 3. Did not require immunosuppressive doses of corticosteroids therapy (\>10mg of prednisone per day or equivalent) in the 14 days prior to enrollment 4. Are asymptomatic with a single untreated brain metastasis \<10 mm in size 9. Participants with a history of myocarditis. Note: Other protocol-defined Inclusion/ Exclusion criteria apply
Where it's running
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University of California San Diego
La Jolla, California, United States Recruiting -
The Angeles Clinic and Research Institute
Los Angeles, California, United States Recruiting -
Miami Cancer Institute
Miami, Florida, United States Recruiting -
Orlando Health, Inc
Orlando, Florida, United States Recruiting -
Atlantic Health System - Morristown Medical Center
Morristown, New Jersey, United States Recruiting -
Cleveland Clinic Foundation
Cleveland, Ohio, United States Recruiting
Show 44 more locations
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University of Tennessee Medical Center
Knoxville, Tennessee, United States Recruiting -
Fundacion Cenit para la Investigacion en Neurociencias
Buenos Aires, Argentina Recruiting -
DIABAID - Instituto de Asistencia Integral en Diabetes
Buenos Aires, Argentina Recruiting -
Clinica Adventista Belgrano
Caba, Argentina Recruiting -
Fundacion CENIT Centro Medico de Neurociencias
Ciudad Autonoma de Buenos Aires, Argentina Recruiting -
Instituto de Oncologia de Rosario
Rosario, Argentina Recruiting -
Centro Medico San Roque
San Miguel de Tucuman, Argentina Recruiting -
Calvary North Adelaide Hospital
Adelaide, Australia Recruiting -
Barwon Health Andrew Love Cancer Centre, University Hospital Geelong
Geelong, Australia Recruiting -
Icon Cancer Centre Hobart
Hobart, Australia Recruiting -
The Alfred Hospital
Melbourne, Australia Recruiting -
The Townsville Hospital and Health Service
Townsville, Australia Recruiting -
Ballarat Oncology and Haematology Clinical Trials Unit
Wendouree, Australia Recruiting -
Medical University Innsbruck
Innsbruck, Tyrol, Austria Recruiting -
Medical University of Graz
Graz, Austria Recruiting -
University Hospital St. Poelten
St. Poelten, Austria Recruiting -
Medical University Of Vienna
Vienna, Austria Recruiting -
Cliniques Universitaires Saint-Luc
Brussels, Belgium Recruiting -
AZ Groeninge, Campus Kennedylaan
Kortrijk, Belgium Recruiting -
Clinique et Maternite Sainte-Elisabeth (CMSE)
Namur, Belgium Recruiting -
AZ Nikolaas
Sint Niklaas, Belgium Recruiting -
Fundacao Pio XII - Hospital de Amor de Barretos
Barretos, Brazil Recruiting -
Centro Avancado de Tratamento Oncologico (CENANTRON)
Belo Horizonte, Brazil Recruiting -
Liga Paranaense de Combate ao Cancer - Hospital Erasto Gaertner
Curitiba, Brazil Recruiting -
Oncosite Centro De Pesquisa Clinica Em Oncologia
Ijui, Brazil Recruiting -
Clinica de Neoplasias Litoral/atarina Pesquisa Clínica
Itajai, Brazil Recruiting -
Instituto Joinvilense De Hematologia E Oncologia
Joinville, Brazil Recruiting -
Animi Unidade de Tratamento Oncologico Ltda
Lages, Brazil Recruiting -
Hospital Bruno Born
Lajeado, Brazil Recruiting -
Hospital Sao Vicente de Paulo (HSVP) Instituto do Cancer
Passo Fundo, Brazil Recruiting -
Hospital Moinhos de Vento
Porto Alegre, Brazil Recruiting -
Hospital de Clinicas de Porto Alegre (HCPA)
Porto Alegre, Brazil Recruiting -
CPO - Centro de Pesquisas em Oncologia
Porto Alegre, Brazil Recruiting -
Fundacao PIO XII - Hospital de Amor Amazonia
Porto Velho, Brazil Recruiting -
Instituto COI
Rio de Janeiro, Brazil Recruiting -
Hospital Sao Rafael
Salvador, Brazil Recruiting -
INCA - Brazilian National Cancer Institute
Santo Cristo, Brazil Recruiting -
Fundacao Faculdade Regional de Medicina de Sao Jose do Rio Preto
Sao Jose do Rio Preto, Brazil Recruiting -
Hemomed
Sao paulo, Brazil Recruiting -
Hospital Sirio Libanes (HSL)
Sao Paulo, Brazil Recruiting -
Sao Camilo Oncologia
Sao Paulo, Brazil Recruiting -
Sunnybrook Research Institute
Toronto, Ontario, Canada Recruiting -
Royal Victoria Regional Health Centre
Barrie, Canada Recruiting -
Cross Cancer Institute (CCI)
Edmonton, Canada Recruiting
+169 more sites. See ClinicalTrials.gov for the full list.
Study contacts
- Study coordinator: Clinical Trials Administrator
- Email: clinicaltrials@regeneron.com
- Phone: 844-734-6643
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Combining two experimental drugs for advanced melanoma treatment
This study is testing if a new combination of two experimental drugs can help people with advanced melanoma more than the current approved treatments.
-
Capecitabine/Oxaliplatin chemo with cemiplimab with or without fianlimab or REGN7075 for locally advanced rectal cancer
This trial tests whether adding cemiplimab, cemiplimab with fianlimab, or cemiplimab with REGN7075 to CAPOX can help people with MSS locally advanced rectal cancer before surgery.
-
Cemiplimab alone or with fianlimab after stereotactic body radiation for oligometastatic clear cell kidney cancer
This trial will test whether giving cemiplimab alone or with fianlimab after stereotactic body radiation helps people with oligometastatic clear cell kidney cancer stay free of recurrence longer.
-
Comparing two immunotherapy combinations and their immune effects in unresectable or metastatic melanoma
This will test whether two different first-line immunotherapy combinations produce different immune responses in tumors and blood of people with unresectable or metastatic melanoma.
-
First-line immune-checkpoint antibody combinations for advanced clear cell kidney cancer
This trial tests whether combining fianlimab and cemiplimab, with or without ipilimumab, works better than the standard ipilimumab plus nivolumab as first treatment for people with advanced clear cell kidney cancer.
-
Two immunotherapies after treatment for HPV-positive head and neck cancer
This study tests whether adding fianlimab to cemiplimab helps prevent recurrence in adults with HPV-positive head and neck cancer who have detectable residual disease after initial therapy.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.