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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT04895722
Other study ID # 1308A-008
Secondary ID MK-1308A-0082022
Status Recruiting
Phase Phase 2
First received
Last updated
Start date June 25, 2021
Est. completion date November 18, 2025

Study information

Verified date May 2024
Source Merck Sharp & Dohme LLC
Contact Toll Free Number
Phone 1-888-577-8839
Email Trialsites@merck.com
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The purpose of this study is to assess the efficacy and safety of co-formulated pembrolizumab/quavonlimab versus other treatments in participants with MSI-H or dMMR Metastatic Stage IV Colorectal Cancer.


Recruitment information / eligibility

Status Recruiting
Enrollment 320
Est. completion date November 18, 2025
Est. primary completion date October 20, 2025
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Has a histologically confirmed diagnosis of Stage IV CRC adenocarcinoma (as defined by American Joint Committee on Cancer [AJCC] version 8) - Has locally confirmed dMMR/MSI-H - Has a life expectancy of at least 3 months - Female participants are eligible to participate if not pregnant or breastfeeding, and not a woman of childbearing potential (WOCBP), or if a WOCBP then uses a contraceptive method that is highly effective or is abstinent on a long-term and persistent basis, during the intervention period and for at least 120 days after the last dose of study intervention - Has measurable disease per RECIST 1.1 as assessed by the site and verified by BICR - Submit an archival (within 5 years of Screening) or newly obtained tumor tissue sample that has not been previously irradiated; formalin-fixed, paraffin embedded (FFPE) blocks are preferred to slides. - Has adequate organ function Cohort A: - Has been previously treated for their Stage IV dMMR/MSI-H CRC and radiographically progressed on or after or could not tolerate standard treatment, which must include all of the following agents if approved and locally available in the country where the participant is randomized: - Fluoropyrimidine, irinotecan and oxaliplatin (capecitabine is acceptable as equivalent to fluorouracil in prior therapy) - With or without an anti-vascular endothelial growth factor (VEGF) monoclonal antibody (e.g., bevacizumab) - At least one of the anti-epidermal growth factor receptor (EGFR) monoclonal antibodies (cetuximab or panitumumab) for rat sarcoma viral oncogene homolog (RAS) wild-type participants with left-sided tumors. Prior EGFR therapy is optional for patients with right sided RAS Wild-type (WT) tumors. Cohort B: - Has untreated Stage IV dMMR/MSI-H CRC with no prior chemotherapy or immunotherapy for this disease Exclusion Criteria: - Has received prior therapy with an agent directed to another stimulatory or coinhibitory T-cell receptor - Has received prior systemic anticancer therapy including investigational agents within 4 weeks before the first dose of study intervention - Has not recovered adequately from a surgery procedure, and/or has any complications from a prior surgery before starting study intervention - Has received prior radiotherapy within 2 weeks of start of study intervention - Has received a live or live-attenuated vaccine within 30 days before the first dose of study intervention - Is currently participating in or has participated in a study of an investigational agent or has used an investigational device within 4 weeks before the first dose of study intervention - Has a diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy (in dosing exceeding 10 mg daily of prednisone equivalent) or any other form of immunosuppressive therapy within 7 days prior to the first dose of study medication - Has a known additional malignancy that is progressing or has required active treatment within the past 2 years - Has known active central nervous system (CNS) metastases and/or carcinomatous meningitis - Has severe hypersensitivity (=Grade 3) to pembrolizumab, quavonlimab, favezelimab, vibostolimab, MK-4830, and/or any of their excipients - Has an active autoimmune disease that has required systemic treatment in past 2 years (i.e., with use of disease modifying agents, corticosteroids or immunosuppressive drugs) - Has a history of (noninfectious) pneumonitis that required steroids or has current pneumonitis - Has a history of acute or chronic pancreatitis - Has neuromuscular disorders associated with an elevated creatine kinase - Has urine protein =1 gram/24 hours - Has an active infection requiring systemic therapy (e.g., tuberculosis, known viral or bacterial infections, etc.) - Has a known history of Human Immunodeficiency Virus (HIV) infection - Concurrent active Hepatitis B (defined as Hepatitis B surface antigen [HBsAg] positive and/or detectable Hepatitis B Virus [HBV] deoxyribonucleic acid [DNA]) and Hepatitis C virus (defined as anti-HCV antibody positive and detectable HCV ribonucleic acid [RNA] infection - Has clinically significant cardiac disease, including unstable angina, acute myocardial infarction within 6 months from Day 1 of study intervention administration, or New York Heart Association Class III or IV congestive heart failure. Medically controlled arrhythmia stable on medication is permitted. - Has present or progressive accumulation of pleural, ascitic, or pericardial fluid requiring drainage or diuretic drugs within 2 weeks before randomization/allocation - Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the study, interfere with the participant's participation for the full duration of the study, or is not in the best interest of the participant to participate, in the opinion of the treating investigator - Has a known psychiatric or substance abuse disorder that would interfere with the participant's ability to cooperate with the requirements of the study - Has had an allogenic tissue/solid organ transplant

Study Design


Intervention

Biological:
Pembrolizumab
400 mg or 200 mg pembrolizumab administered via IV infusion.
Pembrolizumab/Quavonlimab
Co-formulated pembrolizumab/quavonlimab (400 mg/25 mg) fixed-dose combination (FDC) administered via IV infusion.
Pembrolizumab/Favezelimab
Co-formulated pembrolizumab/favezelimab (200 mg/800 mg) FDC administered via IV infusion
Pembrolizumab/Vibostolimab
Co-formulated pembrolizumab/vibostolimab (200 mg/200 mg) FDC administered via IV infusion
MK-4830
800 mg MK-4830 administered via IV infusion

Locations

Country Name City State
Belgium Cliniques universitaires Saint-Luc-Medical Oncology ( Site 0104) Brussels Bruxelles-Capitale, Region De
Belgium UZ Brussel ( Site 0105) Brussels Bruxelles-Capitale, Region De
Belgium UZ Leuven ( Site 0101) Leuven Vlaams-Brabant
Belgium AZ Delta vzw ( Site 0106) Roeselare West-Vlaanderen
Belgium Université Catholique de Louvain-Namur - Centre Hospitalier -Oncology ( Site 0102) Yvoir Namur
Canada The Moncton Hospital-Oncology ( Site 0307) Moncton New Brunswick
Canada McGill University Health Centre-CIM - Oncology ( Site 0306) Montréal Quebec
Canada Sunnybrook Research Institute - Odette Cancer Centre ( Site 0316) Toronto Ontario
Colombia Clinica de la Costa S.A.S. ( Site 1608) Barranquilla Atlantico
Colombia Clinica Colsanitas S.A, Sede Clínica Universitaria Colombia ( Site 1611) Bogota Distrito Capital De Bogota
Colombia Mediservis del Tolima IPS S.A.S ( Site 1609) Ibague Tolima
Colombia Fundación Colombiana de Cancerología Clínica Vida ( Site 1606) Medellin Antioquia
Colombia Instituto de Cancerología ( Site 1610) Medellin Antioquia
Colombia Oncomédica S.A.S ( Site 1602) Montería Cordoba
Colombia Sociedad De Oncologia Y Hematologia Del Cesar-Oncology ( Site 1601) Valledupar Cesar
Costa Rica CIMCA-Hemato-Oncology ( Site 2101) San José San Jose
Costa Rica Hospital Metropolitano - Sede Lindora-Metropolitano Research Institute Sede Lindora ( Site 2102) Santa Ana San Jose
Denmark Aalborg Universitetshospital, Syd ( Site 1903) Aalborg Nordjylland
Denmark Rigshospitalet ( Site 1904) Copenhagen Hovedstaden
Denmark Regionshospitalet Gødstrup ( Site 1901) Herning Midtjylland
Denmark Odense Universitetshospital ( Site 1902) Odense Syddanmark
Estonia North Estonia Medical Centre Foundation-Chemotherapy ( Site 2301) Tallinn Harjumaa
Estonia Tartu University Hospital ( Site 2302) Tartu Tartumaa
France Centre Georges François Leclerc ( Site 0506) Dijon Cote-d Or
France Hopital Claude Huriez - CHU de Lille ( Site 0510) Lille Nord
France Assistance Publique Hôpitaux de Marseille - Hôpital de la Ti-Service d'Hepato-Gastro-Enterologie et Marseille Bouches-du-Rhone
France Hôpital Saint Antoine-Oncologie médicale ( Site 0508) Paris
France Centre Hospitalier Universitaire de Poitiers ( Site 0511) Poitiers Vienne
France CHU Rangueil-Digestive oncology department ( Site 0502) Toulouse Haute-Garonne
Germany Charité Universitaetsmedizin Berlin - Campus Mitte ( Site 0604) Berlin
Germany Universitaetsklinikum Carl Gustav Carus Dresden-Medical Dept I - Medical Oncology ( Site 0601) Dresden Sachsen
Germany Kliniken Essen-Mitte, Evangelische Huyssens-Stiftung ( Site 0611) Essen Nordrhein-Westfalen
Germany Asklepios Altona-Oncology ( Site 0602) Hamburg
Germany Otto-von-Guericke-Universität Magdeburg-Klinik für Gastroenterologie, Hepatologie und Infektiologie Magdeburg Sachsen-Anhalt
Germany Universitätsklinikum Marburg ( Site 0610) Marburg Hessen
Germany Muenchen Klinik Neuperlach, Klinik fuer Haematologie und Onkologie ( Site 0612) Muenchen Bayern
Greece Alexandra General Hospital of Athens-ONCOLOGY DEPT. ( Site 2704) Athens Attiki
Greece Evgenidion Hospital ( Site 2702) Athens Attiki
Greece University General Hospital of Heraklion-Internal Medicine-Oncology ( Site 2703) Heraklion Irakleio
Greece European Interbalkan Medical Center-Oncology Department ( Site 2701) Thessaloniki
Guatemala CELAN,S.A ( Site 2202) Guatemala
Guatemala INTEGRA Cancer Institute-Oncology ( Site 2201) Guatemala
Guatemala MEDI-K CAYALA ( Site 2205) Guatemala
Guatemala Centro Medico Integral De Cancerología (CEMIC) ( Site 2203) Quetzaltenango
Guatemala Centro Regional de Sub Especialidades Médicas SA ( Site 2204) Quetzaltenango
Hungary Semmelweis Egyetem-Belgyógyászati és Hematológiai Klinika ( Site 2002) Budapest
Hungary Debreceni Egyetem Klinikai Kozpont-Onkológiai Klinika ( Site 2008) Debrecen
Hungary Somogy Megyei Kaposi Mór Oktató Kórház-Oncology center ( Site 2010) Kaposvár Somogy
Hungary Bacs-Kiskun Megyei Korhaz-Onkoradiologiai Kozpont ( Site 2005) Kecskemét Bacs-Kiskun
Hungary Pécsi Tudományegyetem Klinikai Központ-Onkoterápiás Intézet ( Site 2009) Pécs Baranya
Hungary Jász-Nagykun-Szolnok Megyei Hetényi Géza Kórház-Onkologiai Kozpont ( Site 2001) Szolnok Jasz-Nagykun-Szolnok
Italy Fondazione IRCCS Istituto Nazionale dei Tumori-Struttura Complessa Oncologia Medica 1 ( Site 0802) Milan Lombardia
Italy Istituto Nazionale Tumori IRCCS Fondazione Pascale-Department of Abdominal Oncology ( Site 0803) Napoli
Italy Istituto Oncologico Veneto IRCCS ( Site 0804) Padova
Korea, Republic of Kyungpook National University Chilgok Hospital-Hematology/oncology ( Site 1103) Daegu Taegu-Kwangyokshi
Korea, Republic of Asan Medical Center-Department of Oncology ( Site 1105) Seoul
Korea, Republic of Korea University Anam Hospital ( Site 1107) Seoul
Korea, Republic of Samsung Medical Center-Division of Hematology/Oncology ( Site 1102) Seoul
Korea, Republic of Seoul National University Hospital-Internal Medicine ( Site 1101) Seoul
Korea, Republic of Severance Hospital, Yonsei University Health System-Medical oncology ( Site 1104) Seoul
Korea, Republic of The Catholic Univ. of Korea Seoul St. Mary's Hospital-Medical Oncology ( Site 1106) Seoul
Lithuania Hospital of Lithuanian University of Health Sciences Kauno klinikos ( Site 2402) Kaunas Kauno Apskritis
Lithuania National Cancer Institute ( Site 2401) Vilnius Vilniaus Miestas
Lithuania VILNIUS UNIVERSITY HOSPITAL SANTAROS KLINIKOS ( Site 2403) Vilnius
Netherlands Nederlands Kanker Instituut - Antoni van Leeuwenhoek (NKI-AVL) ( Site 2901) Amsterdam Noord-Holland
Poland Powiatowe Centrum Zdrowia ( Site 0911) Brzeziny Lodzkie
Poland Szpital Wojewódzki im. Mikoaja Kopernika w Koszalinie-Oddzial Dzienny Chemioterapii ( Site 0903) Koszalin Zachodniopomorskie
Poland Mrukmed-Mrukmed ( Site 0901) Rzeszow Podkarpackie
Poland Luxmed Onkologia sp. z o. o. ( Site 0915) Warszawa Mazowieckie
Poland Narodowy Instytut Onkologii im. Marii Sklodowskiej-Curie - P-Klinika Onkologii i Radioterapii ( Site Warszawa Mazowieckie
Poland DOLNOSLASKIE CENTRUM ONKOLOGII PULMONOLOGII I HEMATOLOGII ( Site 0920) Wroclaw Dolnoslaskie
Romania Centrul medical Focus ( Site 2601) Bucure?ti Bucuresti
Romania Fundeni Clinical Institute-Medical Oncology ( Site 2603) Bucure?ti Bucuresti
Romania Cardiomed SRL Cluj-Napoca ( Site 2602) Cluj-Napoca Cluj
Romania Centrul de Oncologie "Sfântul Nectarie"-Medical Oncology ( Site 2604) Craiova Dolj
Russian Federation Republican Clinical Oncology Dispensary-Chemotherapy #3 ( Site 1006) Kazan Tatarstan, Respublika
Russian Federation Fed State Budgetary Inst N.N. Blokhin Med Center of Oncology-Clinical Pharmacology and Chemotherapy Moscow Moskva
Russian Federation First Moscow State Medical University I.M. Sechenov-Interhospital Institution Health Management Cl Moscow Moskva
Russian Federation Rostov Cancer Research Institute ( Site 1014) Rostov on Don Rostovskaya Oblast
Russian Federation Saint-Petersburg City Clinical Oncology Dispensary-Department of chemotherapy ( Site 1001) Saint Petersburg Leningradskaya Oblast
Russian Federation GBUZ SPb CRPCstmc(o) ( Site 1005) Sankt- Peterburg Sankt-Peterburg
Spain Hospital Universitari Vall d'Hebron ( Site 1201) Barcelona Cataluna
Spain Hospital Clinico San Carlos-Oncology Department ( Site 1204) Madrid
Spain HOSPITAL GENERAL UNIVERSITARIO GREGORIO MARAÑON ( Site 1206) Madrid Madrid, Comunidad De
Spain H.R.U Malaga - Hospital General ( Site 1207) Málaga Malaga
Spain Hospital Universitario Central de Asturias-Medical Oncology ( Site 1203) Oviedo Asturias
Spain COMPLEJO HOSPITALARIO DE NAVARRA-oncologia médica ( Site 1210) Pamplona Navarra
Spain Hospital Universitario Marqués de Valdecilla ( Site 1202) Santander Cantabria
Spain Fundación Instituto Valenciano de Oncología ( Site 1209) Valencia Valenciana, Comunitat
Turkey Baskent University Dr. Turgut Noyan Research and Training Center ( Site 1303) Adana
Turkey Ankara City Hospital-Medical Oncology ( Site 1306) Ankara
Turkey Hacettepe Universitesi-oncology hospital ( Site 1301) Ankara
Turkey Istanbul Universitesi Cerrahpasa-Medical Oncology ( Site 1302) Istanbul
Turkey TC Saglik Bakanligi Goztepe Prof. Dr. Suleyman Yalcin Sehir Hastanesi-oncology ( Site 1305) Istanbul
United Kingdom Velindre Cancer Centre-Research and Development ( Site 1415) Cardiff
United Kingdom University Hospital Coventry & Warwickshire ( Site 1406) Coventry
United Kingdom Beatson West of Scotland Cancer Centre-Clinical Trials Unit ( Site 1401) Glasgow Glasgow City
United Kingdom UCLH-Cancer Clinical Trials Unit ( Site 1402) London-Camden London, City Of
United States University Cancer & Blood Center, LLC ( Site 1521) Athens Georgia
United States University of Chicago Medical Center-Medicine - Section of Hematology/Oncology - Gastrointestinal P Chicago Illinois
United States UT Southwestern Medical Center ( Site 1551) Dallas Texas
United States The West Clinic, PLLC dba West Cancer Center ( Site 1576) Germantown Tennessee
United States Vanderbilt University Medical Center-Vanderbilt-Ingram Cancer Center ( Site 1509) Nashville Tennessee
United States Icahn School of Medicine at Mount Sinai ( Site 1528) New York New York
United States Hematology Oncology Associates of Rockland ( Site 1525) Nyack New York
United States Mid Florida Cancer Center ( Site 1519) Orange City Florida
United States UPMC Hillman Cancer Center ( Site 1516) Pittsburgh Pennsylvania
United States Northwest Medical Specialties, PLLC ( Site 1546) Tacoma Washington
United States Baylor Scott & White Medical Center - Temple-Division of Hematology/Oncology ( Site 1549) Temple Texas

Sponsors (1)

Lead Sponsor Collaborator
Merck Sharp & Dohme LLC

Countries where clinical trial is conducted

United States,  Belgium,  Canada,  Colombia,  Costa Rica,  Denmark,  Estonia,  France,  Germany,  Greece,  Guatemala,  Hungary,  Italy,  Korea, Republic of,  Lithuania,  Netherlands,  Poland,  Romania,  Russian Federation,  Spain,  Turkey,  United Kingdom, 

Outcome

Type Measure Description Time frame Safety issue
Primary Objective Response Rate (ORR) per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1) as assessed by Blinded Independent Central Review (BICR) ORR 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. ORR as assessed by BICR will be presented. Up to approximately 50 months
Secondary Duration of Response (DOR) per RECIST 1.1 as assessed by BICR DOR is defined as the time from the first documented evidence of 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 until Progressive Disease (PD) or death due to any cause, whichever occurs first, in participants demonstrating a CR or PR. 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 demonstrate an absolute increase of at least 5 mm. The appearance of one or more new lesions is also considered PD. DOR as assessed by BICR will be presented. Up to approximately 50 months
Secondary Progression-Free Survival (PFS) per RECIST 1.1 as assessed by BICR PFS is defined as the time from randomization (or first dose) to the first documented PD per RECIST 1.1 or death from any cause, whichever occurs first. 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 demonstrate an absolute increase of at least 5 mm. The appearance of one or more new lesions is also considered PD. PFS as assessed by BICR will be presented. Up to approximately 50 months
Secondary PFS per RECIST 1.1 as assessed by Investigator PFS is defined as the time from randomization (or first dose) to the first documented PD per RECIST 1.1 or death from any cause, whichever occurs first. 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 demonstrate an absolute increase of at least 5 mm. The appearance of one or more new lesions is also considered PD. PFS as assessed by investigator will be presented. Up to approximately 50 months
Secondary ORR per RECIST 1.1 as assessed by Investigator ORR 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. ORR as assessed by investigator will be presented. Up to approximately 50 months
Secondary DOR per RECIST 1.1 as assessed by Investigator DOR is defined as the time from the first documented evidence of 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 until PD or death due to any cause, whichever occurs first, in participants demonstrating a CR or PR. 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 demonstrate an absolute increase of at least 5 mm. The appearance of one or more new lesions is also considered PD. DOR as assessed by investigator will be presented. Up to approximately 50 months
Secondary Overall Survival (OS) OS is defined as the time from randomization (or first dose) to death due to any cause. OS will be presented. Up to approximately 50 months
Secondary Number of Participants Who Experienced an Adverse Event (AE) An AE is any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study intervention. The number of participants with an AE will be presented. Up to approximately 50 months
Secondary Number of Participants Discontinuing Study Treatment Due to an AE An AE is any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study intervention. The number of participants that discontinue study treatment due to an AE will be presented. Up to approximately 50 months
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