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Quavonlimab

Phase 1

Advanced Solid Tumors | Monoclonal antibody | Oncology |Merck & Company, Inc.|Last Updated: Apr 8, 2025

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment415

FDA Designations

No designations recorded

Clinical trial landscape

Quavonlimab · 1 trial · 1 indication

Phase 1 1
NCT03179436Study of Quavonlimab (MK-1308) in Combination With Pembrolizumab (MK-3475) in Advanced Solid Tumors (MK-1308-001)Advanced Solid Tumors
COMPLETED415 Analytics
PHASE1COMPLETED
Study of Quavonlimab (MK-1308) in Combination With Pembrolizumab (MK-3475) in Advanced Solid Tumors (MK-1308-001)
Advanced Solid TumorsUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of Participants With ≥1 Dose Limiting Toxicity (DLT)
Up to 6 weeks

DLT was defined as toxicity that is possibly, probably, or definitely related to study therapy and may result in a change in the given dose. DLTs include Grade (Gr)4 non-hematologic toxicity (not laboratory); Gr 4 hematologic toxicity lasting ≥7 days (except thrombocytopenia); most non-hematologic AEs ≥ Gr 3 in severity; any Gr 3 or Gr 4 non-hematologic laboratory value that requires clinically significant medical intervention, leads to hospitalization, persists for \>1 week, or results in a drug-induced liver injury; Gr 3 or Gr 4 febrile neutropenia; a prolonged delay in initiating Cycle 2 or 3 of Dose Escalation or Cycle 2 of Dose Confirmation due to treatment-related toxicity; any treatment-related toxicity that causes the participant to discontinue treatment during the DLT observation period, and Gr 5 toxicity.

Number of Participants With ≥1 Adverse Event (AE)
Up to approximately 77 months

An AE is defined as any untoward medical occurrence in a participant administered a pharmaceutical product temporally associated with the use of study treatment, whether or not considered related to the study treatment. Per protocol, no analysis was planned for the cross over phase. The number of participants who experienced an AE are presented.

Number of Participants Discontinuing Study Treatment Due to an AE
Up to approximately 26 months

An AE is defined as any untoward medical occurrence in a participant administered a pharmaceutical product temporally associated with the use of study treatment, whether or not considered related to the study treatment. Per protocol, no analysis was planned for the cross over phase. The number of participants who discontinued study treatment due to an AE are presented.

Efficacy Expansion: Objective Response Rate (ORR) as Assessed by Blinded Independent Central Review (BICR) Based on Adjusted Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1)
Up to approximately 72 months

ORR is defined as the percentage of participants with Complete Response (CR: disappearance of all target lesions) or Partial Response (PR: at least a 30% decrease in the sum of diameters of target lesions) per adjusted Response Evaluation Criteria In Solid Tumors Version 1.1 (RECIST 1.1). The percentage of participants who experience CR or PR in the concurrent randomized subset as assessed by Blinded Independent Central Review (BICR) will be presented. Per protocol, only data for arms F and G were presented for this endpoint.

Secondary Endpoints

Area Under the Plasma Concentration Time Curve (AUC) of Pembrolizumab
At designated time points up to - Cohorts 1-3: Day 15 Cycle 3, Arms A, B, C, D, E: Day 15 Cycle 3, Arm F: Day 21 Cycle 3, Arm I: Day 21 Cycle 3, Arm K: Day 21 Cycle 3. Each cycle is 21 days.
Maximum Concentration (Cmax) of Pembrolizumab
At designated time points up to - Cohorts 1-3: Day 15 Cycle 3, Arms A, B, C, D, E: Day 15 Cycle 3, Arm F: Day 21 Cycle 3, Arm I: Day 21 Cycle 3, Arm K: Day 21 Cycle 3. Each cycle is 21 days.
Minimum Concentration (Cmin) of Pembrolizumab
At designated time points up to - Cohorts 1-3: Day 1 Cycle 4, Arms A, B, C, D, E: Day 15 Cycle 3, Arm F: Day 21 Cycle 3, Arm I: Day 21 Cycle 3, Arm K: Day 21 Cycle 3. Each cycle is 21 days.
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Escalation: Dose Level (DL) 1 Quavonlimab + Pembro: Cohort 1EXPERIMENTALOn Cycle 1, Day 1 of the Dose Escalation Phase, advanced solid tumor participants receive a single monotherapy dose lead-in with quavonlimab at dose level 1 (DL1). On Cycle 2, Day 1, and for 3 subsequent cycles on Day 1 (Cycles 3 to 5), these participants receive quavonlimab at DL1 in combination with pembrolizumab (pembro) at pembrolizumab dose level 1 (PDL1) according to Schedule 1. For all subsequent cycles (starting with Cycle 6), all participants receive pembrolizumab monotherapy according to Schedule 1. Participants will be treated for up to 35 cycles total on study.
Escalation: DL 2 Quavonlimab + Pembro: Cohort 2EXPERIMENTALOn Cycle 1, Day 1 of the Dose Escalation Phase, participants with advanced solid tumors except NSCLC receive a single monotherapy dose lead-in with quavonlimab at DL2. On Cycle 2, Day 1, and for 3 subsequent cycles on Day 1 (Cycles 3 to 5), these participants receive quavonlimab at DL2 in combination with pembrolizumab at PDL1 according to Schedule 1. For all subsequent cycles (starting with Cycle 6), all participants receive pembrolizumab monotherapy according to Schedule 1. Participants will be treated for up to 35 cycles total on study.
Escalation: DL 3 Quavonlimab + Pembro: Cohort 3EXPERIMENTALOn Cycle 1, Day 1 of the Dose Escalation Phase, participants with advanced solid tumors except NSCLC receive a single monotherapy dose lead-in with quavonlimab at DL3. On Cycle 2, Day 1, and for 3 subsequent cycles on Day 1 (Cycles 3 to 5), these participants receive quavonlimab at DL3 in combination with pembrolizumab at PDL1 according to Schedule 1. For all subsequent cycles (starting with Cycle 6), all participants receive pembrolizumab monotherapy according to Schedule 1. Participants will be treated for up to 35 cycles total on study.
Confirmation: DL 1 Quavonlimab Schedule 1 + Pembro (NSCLC): Arm AEXPERIMENTALOn Cycle 1, Day 1 of the Dose Confirmation Phase and during all subsequent cycles, participants with NSCLC receive quavonlimab at DL1 in combination with pembrolizumab at PDL1, both according to Schedule 1. Participants will be treated for up to 35 cycles total on study.
Confirmation: DL 1 Quavonlimab Schedule 2 + Pembro (NSCLC): Arm BEXPERIMENTALOn Cycle 1, Day 1 of the Dose Confirmation Phase, participants with NSCLC receive quavonlimab at DL1 in combination with pembrolizumab at PDL1. On all subsequent cycles, participants receive pembrolizumab at PDL1 according to Schedule 1 and quavonlimab at DL1 according to Schedule 2. Participants will be treated for up to 35 cycles total on study.
Confirmation: DL 2 Quavonlimab Schedule 2 + Pembro (NSCLC): Arm CEXPERIMENTALOn Cycle 1, Day 1 of the Dose Confirmation Phase, participants with NSCLC receive quavonlimab at DL2 in combination with pembrolizumab at PDL1. On all subsequent cycles, participants receive pembrolizumab at PDL1 according to Schedule 1 and at DL2 quavonlimab according to Schedule 2. Participants will be treated for up to 35 cycles total on study.
Confirmation: DL 2 Quavonlimab Schedule 2 + Pembro (SCLC): Arm DEXPERIMENTALOn Cycle 1, Day 1 of the Dose Confirmation Phase, participants with SCLC receive quavonlimab at DL2 in combination with pembrolizumab at PDL1. On all subsequent cycles, participants receive pembrolizumab at PDL1 according to Schedule 1 and quavonlimab at DL2 according to Schedule 2. Participants will be treated for up to 35 cycles total on study.
Confirmation: DL 2 Quavonlimab Schedule 1 + Pembro (NSCLC): Arm EEXPERIMENTALOn Cycle 1, Day 1 of the Dose Confirmation Phase and during all subsequent cycles, participants with NSCLC receive quavonlimab at DL2 in combination with pembrolizumab at PDL1 according to Schedule 1. Participants will be treated for up to 35 cycles total on study.
Expansion: DL1 Quavonlimab Schedule 2+PDL2 Pembro Schedule 2: Arm FEXPERIMENTALOn Cycle 1, Day 1 of the Efficacy Expansion Phase and during all subsequent cycles, participants with PD-1/PD-L1 refractory melanoma receive quavonlimab at DL1 in combination with pembrolizumab at pembrolizumab dose level 2 (PDL2). Both quavonlimab and pembrolizumab will be administered according to Schedule 2 for up to 24 months on study.
Expansion: DL1 Quavonlimab Schedule 2 Monotherapy: Arm GEXPERIMENTALOn Cycle 1, Day 1 of the Efficacy Expansion Phase and during all subsequent cycles, participants with PD-1/PD-L1 refractory melanoma receive quavonlimab at DL1 according to Schedule 2 for up to 24 months on study. Participants who demonstrate radiographically confirmed progressive disease in Arm G will be eligible to receive combination therapy with pembrolizumab (crossover).
Coformulation: Pembrolizumab/Quavonlimab Schedule 2: Arm IEXPERIMENTALOn Cycle 1, Day 1 of the Coformulation Phase and during all subsequent cycles, participants with advanced/metastatic solid tumors receive pembrolizumab/quavonlimab according to Schedule 2 for up to 24 months on study.
Coformulation Phase in China: Pembrolizumab/Quavonlimab Schedule 2: Arm KEXPERIMENTALOn Cycle 1, Day 1 of the Coformulation Phase and during all subsequent cycles, participants in mainland China with advanced solid tumors receive pembrolizumab/quavonlimab according to Schedule 2 for up to 24 months on study.

Interventions

NameTypeDescription
QuavonlimabBIOLOGICALQuavonlimab is administered intravenously (IV) during the Dose Escalation Phase and Dose Confirmation Phase at either DL1 or DL2, and is administered IV during the Efficacy Expansion Phase at DL2.
PembrolizumabBIOLOGICALPembrolizumab is administered IV at PDL1 on Day 1 of each cycle starting Cycle 2 for the Dose Escalation Phase or starting Cycle 1 of the Dose Confirmation Phase. Pembrolizumab is administered IV at PDL2 on Day 1 of each cycle for the Efficacy Expansion Phase (Arm G).
Pembrolizumab/QuavonlimabDRUGPembrolizumab/Quavonlimab is a coformulated product composed of quavonlimab at DL1 in combination with pembrolizumab at dose level 2 (PDL2).
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites53

Inclusion Criteria: For Dose Escalation Phase: * Have any histologically- or cytologically-confirmed advanced/metastatic solid tumor (except NSCLC for Cohorts 2 and 3) by pathology report and have received, been intolerant to, been ineligible for, or refused all treatment known to confer clinical ...

Countries:United StatesAustraliaCanadaChileChinaFranceGreeceIsraelItalyJapanNew ZealandPolandSouth AfricaSouth KoreaSpainSweden
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Competitive Landscape -Other Solid Tumors 9 trials (matched to "Advanced Solid Tumors")

Frequently asked questions about Quavonlimab

What is Quavonlimab used for?

Quavonlimab is an investigational monoclonal antibody being studied for the treatment of advanced solid tumors. It is currently in Phase 1 clinical development and has not been approved by regulatory authorities. The drug is being evaluated in combination with pembrolizumab in patients with advanced solid tumors.

What does Quavonlimab target?

Quavonlimab is a monoclonal antibody designed to target a specific molecular pathway involved in cancer. As an immunomodulatory agent, it is being studied in combination with pembrolizumab to potentially enhance the immune system's ability to fight advanced solid tumors. The exact molecular target has not been disclosed in available information.

Who makes Quavonlimab?

Quavonlimab is being developed by Merck & Company, Inc., a global pharmaceutical company traded on the New York Stock Exchange under the ticker symbol MRK. The company is conducting clinical trials to evaluate the drug's safety and efficacy in patients with advanced solid tumors.

What phase is Quavonlimab in?

Quavonlimab is currently in Phase 1 clinical development. It is an investigational drug that has not yet received regulatory approval. The ongoing clinical program is evaluating the drug in combination with pembrolizumab for the treatment of advanced solid tumors, with one completed Phase 1 trial.

What clinical trials is Quavonlimab in?

Quavonlimab has been studied in one clinical trial, NCT03179436, titled 'Study of Quavonlimab (MK-1308) in Combination With Pembrolizumab (MK-3475) in Advanced Solid Tumors (MK-1308-001)'. This Phase 1 trial enrolled 415 patients with advanced solid tumors and has been completed. The trial was conducted across multiple countries including the United States, Australia, Canada, and Japan.

Is Quavonlimab the same as MK-1308?

Yes, Quavonlimab is also known as MK-1308. In clinical trial NCT03179436, the drug is referred to as both Quavonlimab (MK-1308) and is being studied in combination with pembrolizumab (MK-3475) for the treatment of advanced solid tumors.