CI

At a glance

ClinicalIndex Comparison Record
Phase 1Completed· 13 enrolled / 13 target
Drug / intervention
MK-1200 +1 morebiological
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT06242691
NCT06242691Phase 1CompletedUpdate Overdue (0.5/mo)Completion was 12mo ago

A Phase 1/2 Open-label Study to Evaluate the Safety and Efficacy of MK-1200 in Participants With Advanced Solid Tumors

Merck Sharp & Dohme LLC·interventional·Posted Feb 5, 2024·Updated Jun 5, 2026

In Brief

A Phase 1 clinical trial evaluating MK-1200 and Antiemetic for Advanced Solid Tumors. Completed, enrolled 13 participants across 16 sites in 6 countries.

Signals

Enrollment appears stalled

Detailed Summary

The purpose of this study is to assess the efficacy and safety of MK-1200 monotherapy in participants with advanced/metastatic gastric/gastroesophageal junction (GEJ) cancer, esophageal cancer, biliary tract cancer, and pancreatic ductal adenocarcinoma who have received, or been intolerant to, all treatments known to confer clinical benefit. Part 1 of the study will be a dose escalation to determine the maximum tolerated dose (MTD). Part 2 will evaluate safety and efficacy of MK-1200 at 2 different doses

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesAustralia, Chile, China, Israel, South Korea, United States
Collaborators--

Timeline

Phase 1CompletedFinished
202420252026
First PostedFeb 5, 2024
Enrollment StartFeb 28, 2024
Primary CompletionJun 17, 2025
TodayJul 2, 2026
Enrollment to primary: 1.3 yearsPosted 2.4 years ago

Arms & Interventions

Part 1: MK-1200experimental

In Part 1, participants will receive escalating doses of MK-1200 via intravenous (IV) infusion every 2 weeks (Q2W) until any discontinuation criteria are met.

Biological: MK-1200Drug: Antiemetic
Part 2: MK-1200 Cohort Aexperimental

In Part 2, participants in Cohort A will receive either Dose 1 or Dose 2 of MK-1200 (determined from Part 1) via IV infusion Q2W until any discontinuation criteria are met.

Biological: MK-1200Drug: Antiemetic
Part 2: MK-1200 Cohort Bexperimental

In Part 2, participants in Cohort B will receive Dose 1 of MK-1200 (determined from Part 1) via IV infusion Q2W until any discontinuation criteria are met.

Biological: MK-1200Drug: Antiemetic

Interventions

MK-1200biological

IV Infusion

Antiemeticdrug

One or more prophylactic antiemetic(s) (e.g. 5-HT3 receptor antagonists, dexamethasone, neurokinin-1 receptor antagonists, etc.) may be selected based on previous response of participants to antiemetic medications and individual factors, and will be administered per approved product label prior to MK-1200 infusion