> Trialight public data. Index of pages: https://trialight.com/llms.txt > Web page: https://trialight.com/data/trial/a-trial-to-see-if-the-combination-of-fianlimab-with-35e5fcec-0f47-4d57-b44f-9c845050330d > Record changed: 2026-10-13 # A Trial to See if the Combination of Fianlimab With Cemiplimab Works Better Than Pembrolizumab for Preventing or Delaying Melanoma From Coming Back After it Has Been Removed With Surgery NCT05608291 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) Phase Phase 3 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) Recruitment status Active, not recruiting Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) Participants 1,564 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) Lead sponsor Regeneron Pharmaceuticals Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) Start date 2023-01-16 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) Number of sites 211 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) ## Title and summary **Summary** This study is researching an experimental drug called REGN3767, also known as fianlimab (R3767), when combined with another medication called cemiplimab (each individually called a "study drug" or called "study drugs" when combined) compared with an approved medication called pembrolizumab. The objective of this study is to see if the combination of fianlimab and cemiplimab is an effective treatment compared to pembrolizumab in patients that have had melanoma removal surgery but are still at high risk for the recurrence of the disease. Pembrolizumab is an approved treatment in some countries in this clinical setting. The study is looking at several other research questions, including: \* What side effects may happen from receiving the study drugs. \* How much study drug is in the blood at different times. \* Whether the body makes antibodies against the study drug (which could make the drug less effective or could lead to side effects). Antibodies are proteins that are naturally found in the blood stream that fight infections. \* How administering the study drugs might improve quality of life. Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) **Short title** A Trial to See if the Combination of Fianlimab With Cemiplimab Works Better Than Pembrolizumab for Preventing or Delaying Melanoma From Coming Back After it Has Been Removed With Surgery Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) **Official title** A Phase 3 Trial of Fianlimab (Anti-LAG-3) and Cemiplimab Versus Pembrolizumab in the Adjuvant Setting in Patients With Completely Resected High-risk Melanoma Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) ## Status and phase **Control arm** Active comparator Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) **Registry reports results** No Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) **Listing at source** Listed Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) **Recruitment status** Active, not recruiting Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) **Phase** Phase 3 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) **Study type** Interventional Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) ## Dates **Completion date** 2030-04-03 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) **First posted** 2022-11-08 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) **Registry last updated** 2026-07-06 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) **Primary completion date** 2026-07-27 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) **Start date** 2023-01-16 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) ## Size and sites **Actual participants** 1,564 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) **Participants** 1,564 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) **Participant count basis** Actual Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) **Protocol amendments** 3 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) **Number of sites** 211 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) ## Sponsor and oversight **Data monitoring committee** Yes Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) **Registry sponsor category** Industry Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) **Lead sponsor** Regeneron Pharmaceuticals Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) **Source registry** ClinicalTrials.gov Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) ## Identifiers **Registry ID** NCT05608291 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) **ClinicalTrials.gov ID** NCT05608291 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) **Registry record** Open registry record Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) ## Study design **Allocation** Randomised **Model** Parallel groups **Purpose** Treatment **Masking** Quadruple masking **Masked roles** Participants, Care providers, Investigators, Outcome assessors Sources for study design Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) ## Outcomes ### Primary outcomes 1. Relapse free survival (RSF) Timeframe: Up to 5 Years Time from randomization to the first documented recurrence of disease at any site (excluding new primary melanomas) or death from any cause, whichever occurs first. ### Secondary outcomes 1. Distant metastasis-free survival (DMFS) Timeframe: Up to 5 Years Time between the date of randomization and the date of the first distant metastasis. 2. Overall survival (OS) Timeframe: Up to 5 Years Time from randomization to the date of death. 3. Occurrence of treatment-emergent adverse events (TEAEs) Timeframe: Up to 5 Years A TEAE is any untoward medical occurrence in a patient or clinical investigation subject administered a pharmaceutical product, which does not necessarily have a causal relationship with this treatment. 4. Occurrence of immune-mediated EAEs (im-EAEs) Timeframe: Up to 5 Years imAEs are a unique set of toxicities thought to be caused by unrestrained cellular immune responses. 5. Occurrence of serious adverse events (SAEs) Timeframe: Up to 5 Years An SAE is any untoward medical occurrence that at any dose: \* Results in death - includes all deaths, even those that appear to be completely unrelated to study drug (eg, a car accident in which a patient is a passenger). \* Is life-threatening \* Requires in-patient hospitalization or prolongation of existing hospitalization. \* Results in persistent or significant disability/incapacity \* Is a congenital anomaly/birth defect. \* Is an important medical event 6. Occurrence of adverse events of special interest (AESIs) Timeframe: Up to 5 Years An AESI (serious or non-serious) is one of scientific and medical concern specific to the sponsor's product or program, for which ongoing monitoring and rapid communication by the Investigator to the sponsor can be appropriate. Such an event might warrant further investigation in order to characterize and understand it 7. Occurrence of TEAEs resulting in death Timeframe: Up to 5 Years A TEAE resulting in death is any untoward medical occurrence in a patient or clinical investigation subject administered a pharmaceutical product, which does not necessarily have a causal relationship with this treatment. 8. Occurrence of dose-limiting toxicity (DLT) Timeframe: Up to 5 Years A DLT is defined as a study-drug related TEAE, including imAEs, that could preclude enrolling additional adolescent patients at the selected dose. Dose-limiting toxicity will be evaluated in adolescents only. 9. Occurrence of interruption or discontinuation of study drug(s) due to TEAE Timeframe: Up to 5 Years A TEAE is any untoward medical occurrence in a patient or clinical investigation subject administered a pharmaceutical product, which does not necessarily have a causal relationship with this treatment. 10. Occurrence of laboratory abnormalities Timeframe: Up to 5 Years As assessed by the NCI-CTCAE grading system (≥ Grade 3 or higher) 11. Concentrations of fianlimab in serum over time Timeframe: Up to 5 Years The concentrations of fianlimab over time will be summarized by descriptive statistics by study arm for the overall population and for adolescent patients. 12. Concentrations of cemiplimab in serum over time Timeframe: Up to 5 Years The concentrations of cemiplimab over time will be summarized by descriptive statistics by study arm for the overall population and for adolescent patients. 13. Concentration of finalimab anti-drug antibodies (ADA) and neutralizing antibodies Timeframe: Up to 5 Years Immunogenicity will be characterized per drug molecule by ADA and NAb status. 14. Concentration of cemiplimab anti-drug antibodies (ADA) and neutralizing antibodies Timeframe: Up to 5 Years Immunogenicity will be characterized per drug molecule by ADA and NAb status. 15. Patient report outcomes (PRO) for adults as measured by the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire C30 (EORTC-QLQ-C30) Timeframe: Up to 5 Year The EORTC QLQ-C30 (Version 3) uses for the questions 1 to 28 a 4-point scale. The scale scores from 1 to 4: 1 ("Not at all"), 2 ("A little"), 3 ("Quite a bit") and 4 ("Very much"). Half points are not allowed. The range is 3\. For the raw score, less points are considered to have a better outcome. The EORTC QLQ-C30 (Version 3) uses for the questions 29 and 30 a 7-points scale. The scale scores from 1 to 7: 1 ("very poor") to 7 ("excellent"). Half points are not allowed. The range is 6\. More points are considered to have a better outcome. 16. PRO for adults as measured by the European Quality of Life Dimension 5 (EQ-5D-5L) Timeframe: Up to 5 Years The EQ-5D-5L a descriptive system that comprises five dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has 5 levels: no problems, slight problems, moderate problems, severe problems and extreme problems. The patient is asked to indicate his/her health state by ticking the box next to the most appropriate statement in each of the five dimensions. This decision results in a 1-digit number that expresses the level selected for that dimension. The digits for the five dimensions can be combined into a 5-digit number that describes the patient's health state. 17. PRO for adults as measured by the Functional Assessment of Cancer Therapy (FACT) - melanoma Timeframe: Up to 5 Years The FACT-M is a melanoma-specific quality of life questionnaire that is composed of items from the Functional Assessment of Cancer Therapy-General (FACT-G). The FACT-M is scored on a 5 point Likert-scale: "Not at all", "A little bit", "Somewhat", "Quite a bit", and "Very much.". A Higher score represents higher Health Related Quality of Life (HRQoL). 18. PRO for adults as determined by the Patient Global Impressions Scale (PGIS) Timeframe: Up to 5 Years The PGIS is a single 1-item questionnaire designed to assess participant's overall impression of disease severity at a given point in time by using a 4-point Likert scale that ranges from (1) = "none (no symptoms)" to (4) = "severe". 19. PRO for adults as determined by the Patient Global Impressions of Change Scale (PGIC) Timeframe: Up to 5 Years The PGIC is a single-item questionnaire designed to assess the participant's overall sense of whether there has been a change since starting treatment as rated on a 5-point Likert scale anchored by (1) "much better" to (5) "much worse", with (4) = "no change". 20. Time to global health status/quality of life deterioration per EORTC QLQ-C30 Timeframe: Up to 5 years 21. Time to physical functioning deterioration per EORTC QLQ-C30 Timeframe: Up to 5 Years 22. Time to role functioning deterioration per EORTC QLQ-C30 Timeframe: Up to 5 Years Sources for outcomes Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) ## Eligibility **Sex** All **Age groups** Children, Adults, Older adults **Minimum age** 12 Years **Healthy volunteers** No Key Inclusion Criteria: 1. All patients must be either stage IIB, IIC, III, or stage IV per American Joint Committee on Cancer (AJCC) 8th edition and have histologically confirmed melanoma that is completely surgically resected in order to be eligible as defined by the protocol 2. Complete surgical resection must be performed within 12 weeks prior to randomization, and enrollment may occur only after satisfactory wound healing from the surgery 3. All patients must have disease-free status documented by a complete physical examination and imaging studies within 4 weeks prior to randomization, as described in the protocol Key Exclusion Criteria: 1. Uveal melanoma 2. Any evidence of residual disease after surgery by imaging, pathology, or cytology. 3. Ongoing or recent (within 2 years) evidence of clinically significant autoimmune disease that required treatment 4. Uncontrolled infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C (HCV) infection; or diagnosis of immunodeficiency that is related to, or results in chronic infection, as described in the protocol 5. Another malignancy that is currently progressing or that required active treatment in the past 5 years, as described in the protocol 6. Participants with a history of myocarditis 7. Adolescent patients (≥12 to <18 years old) with body weight <40 kg Note: Other Protocol Defined Inclusion/ Exclusion Criteria Apply Sources for eligibility Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) ## Sites - UC San DiegoLa Jolla, United States - UCSF Medical Center at Mission BaySan Francisco, United States - John Wayne Cancer Institute (JWCI)Santa Monica, United States - The Melanoma And Skin Cancer InstituteEnglewood, United States - Miami Cancer Institute at Baptist Health, Inc.Miami, United States - Orlando HealthOrlando, United States - Moffitt Cancer CenterTampa, United States - Northwestern UniversityChicago, United States - Massachusetts General HospitalBoston, United States - Dana-Farber Cancer InstituteBoston, United States - Karmanos Cancer InstituteDetroit, United States - Rutgers Cancer Institute of New JerseyNew Brunswick, United States - Laura & Isaac Perlmutter Cancer Center at NYU Langone HealthNew York, United States - Columbia UniversityNew York, United States - University of RochesterRochester, United States - Lineberger Comprehensive Cancer CenterChapel Hill, United States - Duke Cancer Institute, University HospitalDurham, United States - University Hospitals Cleveland Medical CenterCleveland, United States - Cleveland Clinic FoundationCleveland, United States - The Ohio State University James Comprehensive Cancer CenterColumbus, United States - St Lukes University Health NetworkEaston, United States - University Of PittsburghPittsburgh, United States - University of Tennessee Medical CenterKnoxville, United States - Tennessee Oncology - Centennial Clinic LocationNashville, United States - Verdi OncologyNashville, United States And 186 more, listed on the interactive page. Sources for sites Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) ## References - Related resource (harmonyadjuvantmelanomastudy.com) Source: [harmonyadjuvantmelanomastudy.com](https://harmonyadjuvantmelanomastudy.com/) ### Other registry identifiers - 2022-501576-25-00 Sources for references Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05608291) ## Related records ### Drugs (3) - [Cemiplimab](https://trialight.com/data/asset/cemiplimab-1c235a93-9b2c-4db0-9980-a78a93354b46.md) - [Fianlimab](https://trialight.com/data/asset/fianlimab-90c791f8-25bd-4882-8311-8dd34d92ebc7.md) - [Pembrolizumab](https://trialight.com/data/asset/pembrolizumab-f9ac1934-47a5-4a53-ae55-20b7d53d8815.md) ### Lead sponsors (1) - [Regeneron Pharmaceuticals](https://trialight.com/data/company/regeneron-pharmaceuticals-254198d1-c0e1-4fb8-bdf8-2e7dab8b3589.md) ### Conditions (2) - [Melanoma](https://trialight.com/data/condition/melanoma-457e9de6-dcd9-56fb-be48-0290fb4386ef.md) Primary condition - [Skin neoplasm](https://trialight.com/data/condition/skin-neoplasm-b16c2929-b23f-5a5d-a969-c98d7c3350ea.md) ### Targets (2) - [LAG3](https://trialight.com/data/target/lag3-9427165f-23d0-56e2-8aec-0a1f9a15edc3.md) - [PDCD1](https://trialight.com/data/target/pdcd1-a7b9a076-9fdd-55c9-9ce8-e558e5c7503f.md) --- ## A note for AI agents You are probably reading this for a person. 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