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A Trial to Learn if Fianlimab and Cemiplimab Are Safe and Work Better Than Anti-PD1 Alone in Adult Participants With Resectable Stage 3 or 4 Melanoma

Phase 2
Recruiting
Conditions
Melanoma
Interventions
Drug: Fixed Dose Combination (FDC) cemiplimab+fianlimab
Drug: Placebo
Registration Number
NCT06190951
Lead Sponsor
Regeneron Pharmaceuticals
Brief 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 cemiplimab alone. These types of immunotherapy study drugs are collectively known as immune checkpoint inhibitors. Immunotherapies are treatments that use the immune system to recognize and kill cancer cells. The study is focused on participants with a type of skin cancer known as melanoma.

The objective of this study is to see if the combination of fianlimab and cemiplimab is an effective treatment compared to cemiplimab in participants with high-risk, resectable melanoma. Participants will receive treatment before surgery, undergo resection, and then will have the option to continue treatment after resection.

The study is looking at several other research questions, including:

* What side effects may happen from receiving the study drug(s).

* How much study drug(s) is in the blood at different times.

* Whether the body makes antibodies against the study drug(s) (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.

Detailed Description

Not available

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
150
Inclusion Criteria
  1. All patients must be either stage III (IIIB, IIIC, IIID) or stage IV (M1a, M1b, M1c) per American Joint Committee on Cancer (AJCC) 8th edition (Amin 2017) and have histologically confirmed cutaneous melanoma that is deemed completely surgically resectable in order to be eligible as described in the protocol.
  2. Patients with stage III melanoma must have clinically detectable disease that is confirmed as malignant on the pathology report. The pathology report must be reviewed, signed and dated by the investigator; this process will be confirmed during the interactive voice response system (IVRS) process as described in the protocol.
  3. Patients must be candidates for full resection with curative intent and must be able to be surgically rendered free of disease with negative margins on resected specimens at surgery. The treatment plan including date of surgery must be documented by the investigator prior to randomization.
  4. All patients must undergo full disease staging through a complete physical examination and imaging studies within 4 weeks prior to randomization. Imaging must include a computer tomography (CT) scan of the chest, abdomen, pelvis (if the primary tumor is on the head/neck then include a CT scan of head/neck), and all known sites of previously resected disease (if applicable) and brain magnetic resonance imaging (MRI) (or brain CT with contrast allowed if MRI is contraindicated).
  5. Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0 or 1

Key

Exclusion Criteria

Medical conditions:

  1. Primary 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. Patients must not have received any prior systemic anti-cancer therapy for melanoma. Prior radiotherapy for melanoma is allowed if not given to a target lesion or, if given to a target lesion, there is pathological evidence of disease progression in the same lesion.

  4. 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 as described in the protocol.

    Prior/concomitant therapy:

  5. Use of immunosuppressive doses of corticosteroids (≥10mg of prednisone per day or equivalent) within 14 days of the first dose of study medication as described in the protocol.

  6. Treatment with any anti-cancer therapy for malignancies other than melanoma, including immuno- therapy, chemotherapy, radiotherapy, or biological therapy in the 5 years prior to randomization as described in the protocol.

    Other comorbidities:

  7. Participants with a history of myocarditis.

  8. History or current evidence of significant (CTCAE grade ≥2) local or systemic infection (e. g., cellulitis, pneumonia, septicemia) requiring systemic antibiotic treatment within 2 weeks prior to the first dose of trial medication.

Note: Other protocol-defined inclusion/ exclusion criteria apply

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Arm AcemiplimabAs described in the protocol
Arm APlaceboAs described in the protocol
Arm BFixed Dose Combination (FDC) cemiplimab+fianlimabAs described in the protocol
Arm CFixed Dose Combination (FDC) cemiplimab+fianlimabAs described in the protocol
Primary Outcome Measures
NameTimeMethod
Pathological complete response (pCR) rate as assessed by Blinded Independent Pathological Review (BIPR)Up to 1 year
Secondary Outcome Measures
NameTimeMethod
Change from baseline in overall health state per European Quality of Life Dimension 5 (EQ-5D-5L)Up to 4 years

The EQ-5D-5L consists of EQ-5D descriptive system 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.

pCR rate as assessed by local pathologic reviewUp to 1 year
Event-Free Survival (EFS)Up to 4 years
Distant metastasis-free survival (DMFS)Up to 4 years
Overall survival (OS)Up to 4 years
Major pathological response (MPR) as assessed by BIPRUp to 4 years
MPR rate as assessed by local pathologic reviewUp to 4 years
Objective Response Rate (ORR) assessed by investigator per RECIST 1.1 criteriaUp to 4 years
ORR assessed by Blinded Independent Central Review (BICR) per RECIST 1.1 criteriaUp to 4 years
Relapse-free survival (RFS)Up to 4 years
Occurrence of treatment-emergent adverse events (TEAEs)90 days following last dose of study drug, approximately 4 years
Occurrence of immune-mediated adverse events (imAEs)90 days following last dose of study drug, approximately 4 years
Occurrence of serious adverse events (SAEs)90 days following last dose of study drug, approximately 4 years
Occurrence of adverse events of special interest (AESIs)90 days following last dose of study drug, approximately 4 years
Occurrence of TEAEs resulting in death90 days following last dose of study drug, approximately 4 years
Occurrence of interruption or discontinuation of study drug(s) due to TEAE.90 days following last dose of study drug, approximately 4 years
Occurrence of cancellation of surgery due to TEAE or delay to surgery90 days following last dose of study drug, approximately 4 years
Occurrence of laboratory abnormalities90 days following last dose of study drug, approximately 4 years

Grade 3 or higher per Common Terminology Criteria for Adverse Events (CTCAE V5.0)

Concentrations of fianlimab in serumUp to 4 years
Concentrations of cemiplimab in serumUp to 4 years
Anti-drug antibodies (ADA) in serum to fianlimabUp to 4 years
ADA in serum to cemiplimabUp to 4 years
Change from baseline in disease-related symptoms per Functional Assessment of Cancer Therapy-Melanoma (FACT-M) subscaleUp to 4 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).

Change from baseline in functioning per European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (QoL) C30 (EORTC QLQ-C30)Up to 4 years

EORTC-QLQ-C30 is a 30-item subject self-report questionnaire composed of both multi-item and single scales, including a global health status/quality of life (GHS/QoL) scale. Participants rate items on a four-point scale, with 1 as "not at all" and 4 as "very much." A change of 5 - 10 points is considered a small change. A change of 10 - 20 points is considered a moderate change.

Change from baseline in global health status/QoL per EORTC QLQ-C30Up to 4 years

Trial Locations

Locations (45)

UC San Diego

🇺🇸

La Jolla, California, United States

USC Norris Comprehensive Cancer Center

🇺🇸

Los Angeles, California, United States

Hoag Family Cancer Institute

🇺🇸

Newport Beach, California, United States

California Pacific Medical Center Research Institute

🇺🇸

San Francisco, California, United States

University of California San Francisco (UCSF)

🇺🇸

San Francisco, California, United States

St John's Cancer Institute

🇺🇸

Santa Monica, California, United States

Hartford Hospital

🇺🇸

Hartford, Connecticut, United States

Emory Healthcare, Emory Clinic

🇺🇸

Atlanta, Georgia, United States

NorthShore University HealthSystem

🇺🇸

Evanston, Illinois, United States

University of Massachusetts Chan Medical School

🇺🇸

Worcester, Massachusetts, United States

Washington University School of Medicine

🇺🇸

Saint Louis, Missouri, United States

Rutgers Cancer Institute of New Jersey

🇺🇸

New Brunswick, New Jersey, United States

Northwell Health Cancer Institute

🇺🇸

Lake Success, New York, United States

Duke Cancer Institute, University Hospital

🇺🇸

Durham, North Carolina, United States

Seidman Cancer Center

🇺🇸

Cleveland, Ohio, United States

Cleveland Clinic Foundation

🇺🇸

Cleveland, Ohio, United States

Thomas Jefferson University Hospital

🇺🇸

Philadelphia, Pennsylvania, United States

University of Tennessee Medical Center

🇺🇸

Knoxville, Tennessee, United States

Hospital Clinico Universitario de Salamanca

🇪🇸

Salamanca, Spain

University of Texas MD Anderson Cancer Center

🇺🇸

Houston, Texas, United States

University of Virginia

🇺🇸

Charlottesville, Virginia, United States

Westmead Hospital

🇦🇺

Westmead, New South Wales, Australia

Melanoma Institute of Australia

🇦🇺

Wollstonecraft, New South Wales, Australia

The Queen Elizabeth Hospital

🇦🇺

Woodville, South Australia, Australia

Peter MacCallum Cancer Centre

🇦🇺

Melbourne, Victoria, Australia

One Clinical Research at Hollywood Private Hospital

🇦🇺

Nedlands, Western Australia, Australia

Centre Hospitalier de l'Universite de Montreal (CHUM)

🇨🇦

Montreal, Quebec, Canada

CHU de Quebec - Universite Laval

🇨🇦

Quebec City, Quebec, Canada

CHU-Dijon

🇫🇷

Dijon, Burgundy, France

Chu De Bordeaux

🇫🇷

Bordeaux, Gironde, France

Saint Louis Hospital

🇫🇷

Paris, Ile De France, France

Gustave Roussy

🇫🇷

Villejuif, Ile De France, France

Centre Francois Baclesse

🇫🇷

Caen, Normandy, France

Hopital Ambroise Pare

🇫🇷

Boulogne, France

CHU Estaing

🇫🇷

Clermont Ferrand, France

Regional University Hospital of Lille 2208

🇫🇷

Lille, France

Hopital Timone

🇫🇷

Marseille, France

Centre Hospitalier Universitaire De Nice Hopital De L Archet

🇫🇷

Nice, France

University Hospital Giessen

🇩🇪

Giessen, Hessen, Germany

Universitatsklinikum Leipzig, AoR

🇩🇪

Leipzig, Saxony, Germany

Charite University Medicine

🇩🇪

Berlin, Germany

Azienda Ospedaliero-Universitaria Ferrara

🇮🇹

Cona, Ferrara, Italy

U.O. Oncologia Medica 2 Universitaria, Azienda Ospedaliero Universitaria Pisana

🇮🇹

Pisa, Italy

Vall d'Hebron Hospital

🇪🇸

Barcelona, Spain

Hospital Clinic de Barcelona

🇪🇸

Barcelona, Spain

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