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Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT05845814
Other study ID # 3475-04B
Secondary ID MK-3475-04B2022-
Status Active, not recruiting
Phase Phase 1/Phase 2
First received
Last updated
Start date June 23, 2023
Est. completion date May 31, 2027

Study information

Verified date February 2024
Source Merck Sharp & Dohme LLC
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This study is a substudy being conducted under one pembrolizumab umbrella master study KEYMAKER-U04. The substudy will consist of 2 parts. Part 1 will evaluate the efficacy and safety of coformulated favezelimab/pembrolizumab plus EV and coformulated vibostolimab/pembrolizumab plus EV relative to pembrolizumab plus EV. There will be no comparison of coformulated favezelimab/pembrolizumab plus EV versus coformulated vibostolimab/pembrolizumab plus EV. If ORR and/or DRR are substantially better on coformulated favezelimab/pembrolizumab plus EV and/or coformulated vibostolimab/pembrolizumab plus EV compared with pembrolizumab plus EV, after evaluation of the totality of data, the sponsor might consider Part 2 (expansion) to further characterize the efficacy and safety of the treatment arms under study.


Description:

The master study for this substudy is MK-3475-U04/KEYMAKER-U04. The master study will not be screening any participants and will not be registered.


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 390
Est. completion date May 31, 2027
Est. primary completion date May 31, 2027
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Must have histologically documented, locally advanced/metastatic urothelial carcinoma (la/mUC). - Participants with mixed histology are eligible provided the urothelial component is =50% (and <10% plasmacytoid component) - Participants whose tumors contain any neuroendocrine component are not eligible (variant histology to be confirmed locally) - Must not have received prior systemic therapy for la/mUC. The following therapies in earlier disease setting (eg, muscle-invasive urothelial carcinoma (MIUC)) are permitted: - Participants that received neoadjuvant or adjuvant chemotherapy are permitted. - Participants who received anti- programmed cell death 1 protein (PD-1) or programmed cell death ligand 1 (PD-L1) therapy for an earlier disease stage (eg, NMIBC, MIUC) with progression/recurrence >12 months from completion of therapy are permitted. - Must provide an archival tumor tissue sample or newly obtained core or excisional biopsy of a tumor lesion demonstrating UC, not previously irradiated, and adequate for biomarker evaluation. A newly obtained biopsy is strongly preferred, but not required if archival tissue is evaluable. - Any AEs due to previous anticancer therapies must have recovered to =Grade 1 or baseline. Endocrine-related AEs adequately treated with hormone replacement or with <Grade 2 neuropathy are eligible. Exclusion Criteria: - Has a known additional malignancy, except if the participant has undergone potentially curative therapy with no evidence of that disease recurrence for at least 3 years since initiation of that therapy. - Central nervous system (CNS) metastases are permitted on-study if all of the following are true: a) CNS metastases have been clinically stable for at least 4 weeks prior to screening and baseline scans show no evidence of new or enlarged metastasis; b) the participant is on a stable dose of =10 mg/day of prednisone or equivalent for at least 2 weeks (if requiring steroid treatment); c) participant does not have leptomeningeal disease. - Has received a live or live-attenuated vaccine within 30 days prior to the first dose of study intervention. - Has received an investigational agent or has used an investigational device within 4 weeks prior to study intervention administration. - Has a diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior the first dose of study intervention. Inhaled or topical steroids are permitted in the absence of active autoimmune disease. Physiologic replacement doses of corticosteroids are permitted for participants with adrenal insufficiency. - Has active keratitis or corneal ulcerations. Superficial punctate keratitis is allowed if the disorder is being adequately treated in the opinion of the investigator. - Has an active autoimmune disease that has required systemic treatment in past 2 years except replacement therapy. - Has a history of uncontrolled diabetes. - Has a history of (noninfectious) pneumonitis that required steroids or has current pneumonitis - Has an active infection (viral, bacterial, or fungal) requiring systemic therapy. - Has a known history of human immunodeficiency virus (HIV) infection. - Has hepatitis B or hepatitis C virus infection. - Has had major surgery within 4 weeks prior to first dose of study intervention. - Has had an allogenic tissue/solid organ transplant

Study Design


Intervention

Biological:
Coformulated favezelimab/pembrolizumab
Coformulated favezelimab/pembrolizumab (800 mg/200 mg) IV infusion
Coformulated vibostolimab/pembrolizumab
Coformulated vibostolimab/pembrolizumab (200 mg/200 mg) IV infusion
Combination Product:
EV
1.25 mg/kg IV infusion
Biological:
Pembrolizumab
200 mg IV infusion

Locations

Country Name City State
Australia Royal Brisbane and Women's Hospital-Medical Oncology Clinical Trials Unit, Cancer Care Services ( Si Brisbane Queensland
Australia Austin Health-Cancer Clinical Trials Centre ( Site 3950) Heidelberg Victoria
Canada The Ottawa Hospital - General Campus-The Ottawa Hospital Cancer Centre ( Site 3105) Ottawa Ontario
Canada Princess Margaret Cancer Centre ( Site 3106) Toronto Ontario
Canada Sunnybrook Research Institute - Odette Cancer Centre ( Site 3108) Toronto Ontario
Chile Bradford Hill Norte ( Site 3152) Antofagasta
Chile Bradfordhill-Clinical Area ( Site 3155) Santiago Region M. De Santiago
Chile FALP-UIDO ( Site 3151) Santiago Region M. De Santiago
Chile ONCOCENTRO APYS-ACEREY ( Site 3158) Viña del Mar Valparaiso
France CHU de Bordeaux Hop St ANDRE ( Site 3607) Bordeaux Aquitaine
France Centre Georges François Leclerc-Centre de recherche clinique ( Site 3608) Dijon Cote-d Or
France Hôpital Européen Georges Pompidou ( Site 3605) Paris Ile-de-France
France centre hospitalier lyon sud ( Site 3606) Pierre-Bénite Rhone
France Oncopole Claudius Regaud ( Site 3610) Toulouse Haute-Garonne
Israel Rambam Health Care Campus-Oncology Division ( Site 3501) Haifa
Israel Rabin Medical Center-Oncology ( Site 3504) Petah Tikva
Israel Sheba Medical Center-ONCOLOGY ( Site 3503) Ramat Gan
Italy Fondazione IRCCS Istituto Nazionale dei Tumori-Struttura Complessa Oncologia Medica 1 ( Site 3405) Milan Lombardia
Italy Ospedale San Raffaele-Oncologia Medica ( Site 3403) Milano Lombardia
Italy Istituto Nazionale Tumori IRCCS Fondazione Pascale ( Site 3406) Napoli
Korea, Republic of Asan Medical Center-Department of Oncology ( Site 3901) Seoul
Korea, Republic of Samsung Medical Center ( Site 3902) Seoul
Korea, Republic of Severance Hospital, Yonsei University Health System-Medical oncology ( Site 3903) Seoul
Netherlands Nederlands Kanker Instituut - Antoni van Leeuwenhoek (NKI-AVL)-medical oncology ( Site 3302) Amsterdam Noord-Holland
Netherlands Maastricht UMC+ ( Site 3304) Maastricht Limburg
Netherlands Erasmus Medisch Centrum-Medical Oncology ( Site 3303) Rotterdam Zuid-Holland
Spain Hospital Universitari Vall d'Hebron ( Site 3767) Barcelona
Spain Hospital Clinico San Carlos ( Site 3765) Madrid
Taiwan Chang Gung Memorial Hospital at Kaohsiung-Oncology and Hematology ( Site 3802) Kaohsiung
Taiwan National Cheng Kung University Hospital-Clinical Trial Center ( Site 3803) Tainan
Taiwan National Taiwan University Hospital-Oncology ( Site 3801) Taipei
United Kingdom ROYAL MARSDEN HOSPITAL (CHELSEA) ( Site 3201) London London, City Of
United Kingdom St Bartholomew's Hospital-Centre for Experimental Cancer Medicine ( Site 3206) London London, City Of
United States Emory University School of Medicine ( Site 3043) Atlanta Georgia
United States Anschutz Cancer Pavilion ( Site 3017) Aurora Colorado
United States Cleveland Clinic-Taussig Cancer Center ( Site 3036) Cleveland Ohio
United States Indiana University Melvin and Bren Simon Cancer Center ( Site 3011) Indianapolis Indiana
United States Moores Cancer Center ( Site 3028) La Jolla California
United States Icahn School of Medicine at Mount Sinai ( Site 3018) New York New York
United States Memorial Sloan Kettering Cancer Center ( Site 3031) New York New York
United States University of California, Irvine (UCI) Health - UC Irvine Medical Center ( Site 3045) Orange California
United States UPMC Hillman Cancer Center ( Site 3014) Pittsburgh Pennsylvania
United States Washington University School of Medicine ( Site 3038) Saint Louis Missouri
United States Huntsman Cancer Institute-HCI Clinical Trials Office ( Site 3041) Salt Lake City Utah

Sponsors (1)

Lead Sponsor Collaborator
Merck Sharp & Dohme LLC

Countries where clinical trial is conducted

United States,  Australia,  Canada,  Chile,  France,  Israel,  Italy,  Korea, Republic of,  Netherlands,  Spain,  Taiwan,  United Kingdom, 

Outcome

Type Measure Description Time frame Safety issue
Primary Part 1: Objective Response Rate (ORR) ORR is defined as the percentage of participants who achieve a confirmed complete response (CR) or partial response (PR) per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 as assessed by blinded independent central review (BICR). ORR will be reported for participants in Part 1. Up to ~4 years
Primary Part 1: Percentage of Participants experiencing an Adverse Event (AE) An AE is defined as any untoward medical occurrence in a participant administered study drug, which does not necessarily have to have a causal relationship with the study drug. The number of participants experiencing an AE in Part 1 will be reported. Up to ~4 years
Primary Part 1: Percentage of Participants who Discontinue study interventions due to an AE An AE is defined as any untoward medical occurrence in a participant administered study drug, which does not necessarily have to have a causal relationship with the study drug. The number of participants who discontinue study interventions due to an AE in Part 1 will be reported. Up to ~4 years
Primary Part 1: Percentage of Participants with Dose-limiting toxicities (DLT) A DLT is defined as an event with toxicity including the type, severity, time of onset, time of resolution, and the probable association with study treatment that are not due to pre-existing conditions as defined by the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events, Version 5.0 (CTCAE 5.0). The number of participants who experience a DLT in Part 1 will be reported. Up to 21 days
Primary Part 2: Progression Free Survival (PFS) PFS is defined as the time from randomization to the first documented disease progression per RECIST 1.1 by BICR or death due to any cause, whichever occurs first. PFS will be reported for participants in Part 2. Up to ~4 years
Secondary Part 1: PFS PFS is defined as the time from randomization to the first documented disease progression per RECIST 1.1 by BICR or death due to any cause, whichever occurs first. PFS will be reported for participants in Part 1. Up to ~4 years
Secondary Part 1: Duration of Response (DOR) For participants who demonstrate confirmed CR or PR, DOR is defined as the time from the first documented evidence of CR or PR until disease progression or death due to any cause, whichever occurs first. DOR will be reported for participants in Part 1. Up to ~4 years
Secondary Part 2: Overall Survival (OS) OS is defined as the time from randomization to death due to any cause. OS will be reported for participants in Part 2. Up to ~4 years
Secondary Part 2: ORR ORR is defined as the percentage of participants who achieve a confirmed CR or PR per RECIST 1.1 as assessed by BICR. ORR will be reported for participants in Part 2. Up to ~4 years
Secondary Part 2: DOR For participants who demonstrate confirmed CR or PR, DOR is defined as the time from the first documented evidence of CR or PR until disease progression or death due to any cause, whichever occurs first. DOR will be reported for participants in Part 2. Up to ~4 years
Secondary Part 2: Percentage of Participants experiencing an Adverse Event (AE) An AE is defined as any untoward medical occurrence in a participant administered study drug, which does not necessarily have to have a causal relationship with the study drug. The number of participants experiencing an AE in Part 2 will be reported. Up to ~4 years
Secondary Part 2: Percentage of Participants who Discontinue study interventions due to an AE An AE is defined as any untoward medical occurrence in a participant administered study drug, which does not necessarily have to have a causal relationship with the study drug. The number of participants who discontinue study interventions due to an AE in Part 2 will be reported. Up to ~4 years
Secondary Part 2: Percentage of Participants with Dose-limiting toxicities (DLT) A DLT is defined as an event with toxicity including the type, severity, time of onset, time of resolution, and the probable association with study treatment that are not due to pre-existing conditions as defined by the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events, Version 5.0 (CTCAE 5.0). The number of participants who experience a DLT in Part 2 will be reported. Up to 21 days
Secondary Part 1: Mean Change from baseline in the global health status/quality of life of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLC-C30) (Items 29 and 30) Participants are asked to answer questions 29 and 30 from the EORTC QLC-C30. Questions 29 and 30 use a 7-point scale (1=very poor to 7=excellent) to evaluate overall health and quality of life. Scores were transformed to a range of 0 to 100 using a standard EORTC algorithm. Negative change from baseline values indicated deterioration in health status or functioning and positive changes indicated improvement. The mean change from baseline will be reported for Part 1. Baseline and up to ~4 years
Secondary Part 1: Mean Change from baseline in the physical functioning scale of the EORTC QLQ-C30 Participants are asked to answer questions about their physical functioning from the EORTC QLC-C30. These questions use a 4-point scale (1=not at all to 4=very much) to evaluate overall health and quality of life. Scores were transformed to a range of 0 to 100 using a standard EORTC algorithm. Negative change from baseline values indicated deterioration in health status or functioning and positive changes indicated improvement. The mean change from baseline will be reported for Part 1. Baseline and up to ~4 years
Secondary Part 1: Mean Change from Baseline in the European Quality of Life 5 Dimensions, 5-level Questionnaire (EQ-5D-5L) visual analog score (VAS) The EQ-5D-5L is a descriptive five-dimensional system of evaluation. The five dimensions are mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Participants rate each dimension on 5 levels ranging from 1 (no problems) to 5 (extreme problems). The EQ-5D-5L also includes a graded (0 to 100) vertical visual analog scale on which the participant rates their general state of health. Negative change from baseline values indicated deterioration in health status or functioning and positive changes indicated improvement. The mean change from baseline will be reported for Part 1. Baseline and up to ~4 years
Secondary Part 2: Mean Change from baseline in the global health status/quality of life of the EORTC QLC-C30 (Items 29 and 30) Participants are asked to answer questions 29 and 30 from the EORTC QLC-C30. Questions 29 and 30 use a 7-point scale (1=very poor to 7=excellent) to evaluate overall health and quality of life. Scores were transformed to a range of 0 to 100 using a standard EORTC algorithm. Negative change from baseline values indicated deterioration in health status or functioning and positive changes indicated improvement. The mean change from baseline will be reported for Part 2. Baseline and up to ~4 years
Secondary Part 2: Mean Change from baseline in the physical functioning scale of the EORTC QLQ-C30 Participants are asked to answer questions about their physical functioning from the EORTC QLC-C30. These questions use a 4-point scale (1=not at all to 4=very much) to evaluate overall health and quality of life. Scores were transformed to a range of 0 to 100 using a standard EORTC algorithm. Negative change from baseline values indicated deterioration in health status or functioning and positive changes indicated improvement. The mean change from baseline will be reported for Part 2. Baseline and up to ~4 years
Secondary Part 2: Mean Change from Baseline in the EQ-5D-5L visual analog score (VAS) The EQ-5D-5L is a descriptive five-dimensional system of evaluation. The five dimensions are mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Participants rate each dimension on 5 levels ranging from 1 (no problems) to 5 (extreme problems). The EQ-5D-5L also includes a graded (0 to 100) vertical visual analog scale on which the participant rates their general state of health. Negative change from baseline values indicated deterioration in health status or functioning and positive changes indicated improvement. The mean change from baseline will be reported for Part 2. Baseline and up to ~4 years
Secondary Part 1: Time-to-Deterioration (TTD) for the global health status/quality of life of the EORTC QLQ-C30 (Items 29 and 30) Participants are asked to answer questions 29 and 30 from the EORTC QLC-C30. Questions 29 and 30 use a 7-point scale (1=very poor to 7=excellent) to evaluate overall health and quality of life. Scores were transformed to a range of 0 to 100 using a standard EORTC algorithm. TTD is defined as the time from the first GHS/QoL assessment to deterioration (defined as =10-point decrease in GHS/QoL score from baseline) or death, whichever occurs first. The TTD in GHS/QoL score of participants will be reported for Part 1. Up to ~4 years
Secondary Part 1: TTD for the physical functioning scale of the EORTC QLQ-C30 Participants are asked to answer questions about their physical functioning from the EORTC QLC-C30. These questions use a 4-point scale (1=not at all to 4=very much) to evaluate overall health and quality of life. Scores were transformed to a range of 0 to 100 using a standard EORTC algorithm. Negative change from baseline values indicated deterioration in health status or functioning and positive changes indicated improvement. TTD is defined as the time from the first GHS/QoL assessment to deterioration (defined as =10-point decrease in GHS/QoL score from baseline) or death, whichever occurs first. The TTD in GHS/QoL score of participants will be reported for Part 1. Up to ~4 years
Secondary Part 1: TTD for the EQ-5D-5L VAS The EQ-5D-5L is a descriptive five-dimensional system of evaluation. The five dimensions are mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Participants rate each dimension on 5 levels ranging from 1 (no problems) to 5 (extreme problems). The EQ-5D-5L also includes a graded (0 to 100) vertical visual analog scale on which the participant rates their general state of health. Negative change from baseline values indicated deterioration in health status or functioning and positive changes indicated improvement. TTD is defined as the time from the first EQ-5D-5L VAS assessment to deterioration (defined as =7-point decrease in EQ-5D-5L VAS score more from baseline) or death, whichever occurs first. The TTD in EQ-5D-5L VAS score of participants will be reported for Part 1. Up to ~4 years
Secondary Part 2: TTD for the global health status/quality of life of the EORTC QLQ-C30 (Items 29 and 30) Participants are asked to answer questions 29 and 30 from the EORTC QLC-C30. Questions 29 and 30 use a 7-point scale (1=very poor to 7=excellent) to evaluate overall health and quality of life. Scores were transformed to a range of 0 to 100 using a standard EORTC algorithm. TTD is defined as the time from the first GHS/QoL assessment to deterioration (defined as =10-point decrease in GHS/QoL score from baseline) or death, whichever occurs first. The TTD in GHS/QoL score of participants will be reported for Part 2. Up to ~4 years
Secondary Part 2: TTD for the physical functioning scale of the EORTC QLQ-C30 Participants are asked to answer questions about their physical functioning from the EORTC QLC-C30. These questions use a 4-point scale (1=not at all to 4=very much) to evaluate overall health and quality of life. Scores were transformed to a range of 0 to 100 using a standard EORTC algorithm. Negative change from baseline values indicated deterioration in health status or functioning and positive changes indicated improvement. TTD is defined as the time from the first GHS/QoL assessment to deterioration (defined as =10-point decrease in GHS/QoL score from baseline) or death, whichever occurs first. The TTD in GHS/QoL score of participants will be reported for Part 2. Up to ~4 years
Secondary Part 2: TTD for the EQ-5D-5L VAS The EQ-5D-5L is a descriptive five-dimensional system of evaluation. The five dimensions are mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Participants rate each dimension on 5 levels ranging from 1 (no problems) to 5 (extreme problems). The EQ-5D-5L also includes a graded (0 to 100) vertical visual analog scale on which the participant rates their general state of health. Negative change from baseline values indicated deterioration in health status or functioning and positive changes indicated improvement. TTD is defined as the time from the first EQ-5D-5L VAS assessment to deterioration (defined as =7-point decrease in EQ-5D-5L VAS score more from baseline) or death, whichever occurs first. The TTD in EQ-5D-5L VAS score of participants will be reported for Part 2. Up to ~4 years
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