A Phase 1, Open-label, Multicenter Study of the Safety, Pharmacokinetics, and Pharmacodynamics of MK-4464 as Monotherapy and in Combination with Pembrolizumab in Participants with Advanced/Metastatic Solid Tumors

2023-504855-28-00 Protocol MK-4464-001 Human pharmacology (Phase I) - First administration to humans Ended

Start 21 Mar 2023 · End 18 Sep 2025 · Status Ended · 1 EU/EEA countries · 2 sites · Protocol MK-4464-001

Overview

Sponsor-declared trial summary

Phase Human pharmacology (Phase I) - First administration to humans
Status Ended
Participants planned 83
Countries 1
Sites 2

advanced/metastatic solid tumors

Key facts

Sponsor
Merck Sharp & Dohme LLC
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Neoplasms [C04]
Trial duration
21 Mar 2023 → 18 Sep 2025
Decision date (initial)
2023-06-21
Transition trial
Yes
Low-intervention
No
Rare-disease indication
No
Vulnerable population
Yes

External identifiers

EU CT number
2023-504855-28-00
EudraCT number
2021-005882-42
WHO UTN
U1111-1290-2697
ClinicalTrials.gov
NCT05514444

Trial design

CTIS Part I — objectives, methods, condition coding

Conditions and MedDRA coding

advanced/metastatic solid tumors

VersionLevelCodeTermSystem organ class
20.0 LLT 10025648 Malignant mast cell tumors unspecified site extranodal and solid organ sites 10029104

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Merck Sharp & Dohme LLC

Sponsor organisation
Merck Sharp & Dohme LLC
Address
126 East Lincoln Avenue
City
Rahway
Postcode
07065-4607
Country
United States

Scientific contact point

Organisation
Merck Sharp & Dohme LLC
Contact name
Konstantin Dobrenkov

Public contact point

Organisation
Merck Sharp & Dohme LLC
Contact name
Konstantin Dobrenkov

Locations

1 EU/EEA country · 2 investigational sites

By country

CountryMS statusPlanned subjectsSites
Netherlands Ended 30 2
Rest of world
United States, Israel, Canada
53

Investigational sites

Netherlands

2 sites · Ended
Amsterdam UMC
Department of medical oncology, De Boelelaan 1117, 1081 HV, Amsterdam
Het Nederlands Kanker Instituut-Antoni van Leeuwenhoek Ziekenhuis Stichting
Clinical Research Unit, Plesmanlaan 121, 1066 CX, Amsterdam

Country notifications

Trial-start, recruitment-start, end and early-termination notifications submitted per Member State

Country Trial startTrial end Recruitment startRecruitment end Early termination
Netherlands 2023-03-21 2025-04-10 2023-04-28 2024-07-09

Application history

4 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2023-05-23 Netherlands Acceptable
2023-06-21
2023-06-21
2 SUBSTANTIAL MODIFICATION SM-1 2023-08-10 Netherlands Acceptable
2023-09-12
2023-09-12
3 SUBSTANTIAL MODIFICATION SM-2 2023-12-07 Netherlands Acceptable
2024-01-17
2024-01-17
4 SUBSTANTIAL MODIFICATION SM-3 2024-12-20 Netherlands Acceptable
2025-02-17
2025-02-20