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A Phase 3 Trial of Fianlimab (REGN3767, Anti-Lag-3) + Cemiplimab versus Pembrolizumab in Patients with Previously Untreated Unresectable Locally Advanced or Metastatic Melanoma

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2023-505772-30-00
Acronym
R3767-ONC-2011
Enrollment
562
Registered
2024-03-07
Start date
2022-11-09
Completion date
Unknown
Last updated
2025-09-19

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

Conditions

Melanoma

Brief summary

Progression-free survival (PFS)

Detailed description

Overall survival (OS), Objective response rate (ORR), Disease control rate (DCR), Duration of response (DoR), PFS per investigator assessment, Incidence of Adverse Events (AEs), Occurrence of interruption and discontinuation of study drug(s) due to AEs, TEAEs leading to death, Incidence of laboratory abnormalities, Concentrations of cemiplimab in serum, Concentrations of fianlimab in serum, Incidence of anti-drug antibodies (ADA) to fianlimab over time, Titer of anti-drug antibodies (ADA) to fianlimab over time, Incidence of ADA to cemiplimab over time, Titer of ADA to cemiplimab over time, Incidence of neutralizing antibodies (NAb) to fianlimab over time, Incidence of NAb to cemiplimab over time, Patient-reported outcomes (PROs) as measured by European Organization for Research and Treatment of Cancer Quality of Life Questionnaire C30 (EORTC QLQ-C30), PROs as measured by EQ-5D-5L, PROs as measured by Functional Assessment of Cancer Therapy (FACT)-melanoma (melanoma subscale only), PROs as measured by Patient Global Impression of Severity (PGIS), PROs as measured by Patient Global Impression of Change (PGIC), Change in physical functioning per EORTC QLQ-C30, Change in role functioning per EORTC QLQ-C30, Change in global health status/quality of life (GHS/QoL) per EORTC QLQ-C30, Change in physical functioning per EORTC QLQ-C30, Change in role functioning per EORTC QLQ-C30, Change in GHS/QoL per EORTC QLQ-C30

Interventions

DRUGFianlimab
DRUGLIBTAYO 350 mg concentrate for solution for infusion.
DRUGKEYTRUDA 25 mg/mL concentrate for solution for infusion

Sponsors

Regeneron Pharmaceuticals Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
0 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Progression-free survival (PFS)

Secondary

MeasureTime frame
Overall survival (OS), Objective response rate (ORR), Disease control rate (DCR), Duration of response (DoR), PFS per investigator assessment, Incidence of Adverse Events (AEs), Occurrence of interruption and discontinuation of study drug(s) due to AEs, TEAEs leading to death, Incidence of laboratory abnormalities, Concentrations of cemiplimab in serum, Concentrations of fianlimab in serum, Incidence of anti-drug antibodies (ADA) to fianlimab over time, Titer of anti-drug antibodies (ADA) to fianlimab over time, Incidence of ADA to cemiplimab over time, Titer of ADA to cemiplimab over time, Incidence of neutralizing antibodies (NAb) to fianlimab over time, Incidence of NAb to cemiplimab over time, Patient-reported outcomes (PROs) as measured by European Organization for Research and Treatment of Cancer Quality of Life Questionnaire C30 (EORTC QLQ-C30), PROs as measured by EQ-5D-5L, PROs as measured by Functional Assessment of Cancer Therapy (FACT)-melanoma (melanoma subscale only), PRO

Countries

Austria, Belgium, Czechia, France, Germany, Hungary, Ireland, Italy, Netherlands, Poland, Romania, Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026