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MK-7684A With or Without Other Anticancer Therapies in Participants With Selected Solid Tumors (MK-7684A-005) (KEYVIBE-005)

A Multicenter, Open-label, Phase 2 Basket Study of MK-7684A, a Co-formation of Vibostolimab (MK-7684) With Pembrolizumab (MK-3475), With or Without Other Anticancer Therapies in Participants With Selected Solid Tumors

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05007106
Enrollment
613
Registered
2021-08-16
Start date
2021-09-16
Completion date
2025-08-05
Last updated
2025-08-14

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

Conditions

Cholangiocarcinoma, Endometrial Neoplasms, Esophageal Neoplasms, Gallbladder Neoplasms, Hepatocellular Carcinoma, Ovarian Neoplasms, Squamous Cell Carcinoma of Head and Neck, Stomach Neoplasms, Triple Negative Breast Neoplasms, Urinary Bladder Neoplasms, Uterine Cervical Neoplasms

Keywords

Programmed Cell Death-1 (PD1, PD-1), Programmed Death-Ligand 1 (PDL1, PD-L1)

Brief summary

The purpose of this study is to determine the safety, tolerability, and preliminary efficacy of pembrolizumab/vibostolimab co-formulation (MK-7684A) with or without other anticancer therapies in participants with selected advanced solid tumors. The primary hypothesis is that pembrolizumab/vibostolimab co-formulation is superior to pembrolizumab alone in terms of objective response rate or progression-free survival in participants with cervical cancer.

Interventions

Pembrolizumab 200 mg plus vibostolimab 200 mg administered via IV infusion Q3W

BIOLOGICALPembrolizumab

Pembrolizumab 200 mg administered via IV infusion Q3W.

DRUGLenvatinib

Lenvatinib 20 mg, 12 mg, or 8 mg (dependent on cancer type and body weight) administered via oral capsule QD

DRUG5-Fluorouracil

5-FU 800 mg/m\^2/day administered via continuous IV infusion on each of days 1 to 5 Q3W for up to 35 cycles

DRUGCisplatin

Cisplatin administered via IV infusion

DRUGPaclitaxel

Paclitaxel administered via IV infusion at investigator's choice of dose

DRUGGemcitabine

Gemcitabine administered via IV infusion on Day 1 and Day 8 of each 3-week cycle, until PD or unacceptable toxicity

DRUGCarboplatin

Carboplatin administered via IV infusion at investigator's choice of dose and frequency

DRUGDocetaxel

For participants who cannot receive paclitaxel due to hypersensitivity or adverse event (AE), docetaxel administered via IV infusion Q3W, Day 1 of each cycle for up to 5 cycles

DRUGBevacizumab

Bevacizumab (or biosimilars such as MVASI®, Zirabev®, Aybintio®, ALYMSYS®, Abevmy®, Onbevezy®, Vegzelma®) administered via IV infusion Q3W; Day 1 of each 3-week cycle for up to 15 cycles

DRUGCapecitabine

Capecitabine administered via oral tablet twice daily on Days 1 to 14 of each cycle (Q3W) for up to 35 cycles

DRUGOxaliplatin

Oxaliplatin administered via IV infusion Q3W up to 35 cycles

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Participants with locally recurrent unresectable or metastatic cervical cancer whose tumors express programmed cell death 1 ligand 1 (PD-LI) and have a combined positive score (CPS) ≥1 will be randomly assigned to treatment with either pembrolizumab/vibostolimab co-formulation or pembrolizumab only. The other study intervention arms will be assigned to participants depending on the selected cancer type.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* One of the following histologically or cytologically confirmed, advanced (unresectable or metastatic) solid tumors: * Squamous cell carcinoma, adenosquamous carcinoma, or adenocarcinoma of the cervix * Endometrial cancer * Head and neck squamous cell carcinoma (HNSCC) * Unresectable biliary adenocarcinoma (gallbladder or biliary tree \[intrahepatic or extrahepatic\] cholangiocarcinoma) * Adenocarcinoma or squamous cell carcinoma of the esophagus or advanced/metastatic Siewert type 1 adenocarcinoma of the gastroesophageal junction (GEJ). * Triple-negative breast cancer (TNBC) * Hepatocellular carcinoma (HCC) * Urothelial carcinoma of the renal pelvis, ureter, bladder, or urethra * Ovarian cancer * Gastric cancer * Measurable disease per RECIST v1.1 as assessed by BICR or local site investigator. * Adequately controlled blood pressure (BP) with or without antihypertensive medications. * Human immunodeficiency virus (HIV)-infected participants must have well controlled HIV on anti-retroviral therapy (ART). * Male participants must agree to follow contraceptive guidance. * Female participants are not pregnant or breastfeeding, not a woman of child-bearing potential (WOCBP) or is a WOCBP and agrees to follow contraceptive guidance. * Adequate organ function.

Exclusion criteria

* History of a second malignancy, unless potentially curative treatment has been completed with no evidence of malignancy for 3 years. * Prior therapy with anti-programmed cell-death (PD-1), anti-PD-L1, anti-PD-L2, or anti-T-cell immunoreceptor with Ig and ITIM domains (TIGIT) agent. * Prior systemic anticancer therapy including investigational agents within 4 weeks before randomization/allocation. * Received a live or live-attenuated vaccine within 30 days before the first dose of study intervention. Administration of killed vaccines are allowed. * Diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy or any other form of immunosuppressive therapy within 7 days before the first dose of study medication. * Active autoimmune disease that has required systemic treatment in past 2 years. * Active infection requiring systemic therapy. * Concurrent active hepatitis B and hepatitis C virus infection. * History of allogenic tissue/solid organ transplant. * Previous treatment with lenvatinib (for participants who will receive lenvatinib in their assigned treatment arm). * Has clinically significant cardiovascular disease within 12 months from first dose of study intervention.

Design outcomes

Primary

MeasureTime frameDescription
Objective Response Rate (ORR) per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 as Assessed by Blinded Independent Central Review (BICR)Up to approximately 2 yearsORR is defined as the percentage of participants who have a Complete Response (CR: Disappearance of all target lesions) or a Partial Response (PR: At least a 30% decrease in the sum of diameters of target lesions) per RECIST 1.1. The percentage of participants who experience a CR or PR as assessed by blinded independent central review based on RECIST 1.1 will be presented.
Progression-Free Survival (PFS) per RECIST 1.1 as Assessed by BICRUp to approximately 2 yearsPFS is defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurs first. Per RECIST 1.1, PD is defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions is also considered PD. PFS as assessed by BICR will be presented.
ORR per RECIST 1.1 as Assessed by Investigator in Participants with Selected Solid TumorsUp to approximately 2 yearsORR is defined as the percentage of participants who have a CR (Disappearance of all target lesions) or a PR (At least a 30% decrease in the sum of diameters of target lesions) per RECIST 1.1. The percentage of participants who experience a CR or PR as assessed by investigator based on RECIST 1.1 will be presented.
PFS per RECIST 1.1 as Assessed by Investigator at 9 months9 monthsPFS is defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurs first. Per RECIST 1.1, PD is defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions is also considered PD.
PFS per RECIST 1.1 as Assessed by Investigator at 12 months12 monthsPFS is defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurs first. Per RECIST 1.1, PD is defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions is also considered PD.

Secondary

MeasureTime frameDescription
PFS per RECIST 1.1 as Assessed by Investigator in Participants with Cervical CancerUp to approximately 2 yearsPFS is defined as the time from first dose of study treatment to the first documented progressive disease (PD) or death due to any cause, whichever occurs first. Per RECIST 1.1, PD is defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions is also considered PD. PFS as assessed by investigator will be presented.
Change from Baseline in Global Health Status/Quality of Life Score (European Organisation for Research and Treatment of Cancer Quality-of-Life Questionnaire Core 30 [EORTC QLQ-C30] Items 29 and 30)Baseline and up to approximately 2 yearsThe EORTC QLQ-C30 is a questionnaire to assess the overall quality of life of cancer patients. Participant responses to the questions How would you rate your overall health during the past week? and How would you rate your overall quality of life during the past week? are scored on a 7-point scale (1= Very poor to 7=Excellent). Using linear transformation, raw scores are standardized, so that scores range from 0 to 100. A higher score indicates a better overall health status. The change from baseline in EORTC QLQ-C30 Items 29 and 30 combined score will be presented.
Overall Survival (OS)Up to approximately 5.5 yearsOS is defined as the time from randomization to death due to any cause.
Number of Participants Who Experienced One or More Adverse Events (AEs)Up to approximately 2 yearsAn AE is defined as any unfavorable and unintended sign including an abnormal laboratory finding, symptom or disease associated with the use of a medical treatment or procedure, regardless of whether it is considered related to the medical treatment or procedure, that occurs during the course of the study.
Number of Participants Who Discontinued Study Intervention Due to an AEUp to approximately 2 yearsAn AE is defined as any unfavorable and unintended sign including an abnormal laboratory finding, symptom or disease associated with the use of a medical treatment or procedure, regardless of whether it is considered related to the medical treatment or procedure, that occurs during the course of the study.
Change from Baseline in Physical Functioning Score (EORTC QLQ-C30 Items 1-5)Baseline and up to approximately 2 yearsThe EORTC QLQ-C30 is a questionnaire to assess the overall quality of life of cancer patients. Participant responses to 5 questions about their physical functioning are scored on a 4-point scale (1=Not at All to 4=Very Much). Using linear transformation, raw scores are standardized, so that scores range from 0 to 100. A higher score indicates a better quality of life. The change from baseline in Physical Functioning (EORTC QLQ-C30 Items 1-5) score will be presented.
PFS per RECIST 1.1 as Assessed by InvestigatorUp to approximately 2 yearsPFS is defined as the time from first dose of study treatment to the first documented progressive disease (PD) or death due to any cause, whichever occurs first. Per RECIST 1.1, PD is defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions is also considered PD. PFS as assessed by investigator will be presented.
Duration of Response (DOR) per RECIST 1.1 as Assessed by BICRUp to approximately 2 yearsFor participants who demonstrate a confirmed CR (disappearance of all target lesions) or confirmed PR (at least a 30% decrease in the sum of diameters of target lesions) per RECIST 1.1, DOR is defined as the time from first documented evidence of CR or PR until PD or death. Per RECIST 1.1, PD is defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of at least 5 mm. The appearance of one or more new lesions is also considered PD. The DOR as assessed by BICR will be presented.
DOR per RECIST 1.1 as Assessed by InvestigatorUp to approximately 2 yearsFor participants who demonstrate a confirmed CR (disappearance of all target lesions) or confirmed PR (at least a 30% decrease in the sum of diameters of target lesions) per RECIST 1.1, DOR is defined as the time from first documented evidence of CR or PR until PD or death. Per RECIST 1.1, PD is defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of at least 5 mm. The appearance of one or more new lesions is also considered PD. The DOR as assessed by investigator will be presented.
ORR per RECIST 1.1 as Assessed by InvestigatorUp to approximately 2 yearsORR is defined as the percentage of participants who have a CR (Disappearance of all target lesions) or a PR (At least a 30% decrease in the sum of diameters of target lesions) per RECIST 1.1. The percentage of participants who experience a CR or PR as assessed by investigator based on RECIST 1.1 will be presented.

Countries

Canada, Chile, Colombia, France, Germany, Israel, Italy, Japan, Netherlands, Poland, South Korea, Spain, Taiwan, Turkey (Türkiye), United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 12, 2026