Safety and Efficacy of MK-1200 in Participants With Advanced Solid Tumors (MK-1200-002)

NCT ID: NCT06242691

Last Updated: 2025-09-16

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

PHASE1/PHASE2

Total Enrollment

304 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-02-28

Study Completion Date

2025-06-17

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

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

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Advanced Solid Tumors

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Part 1: MK-1200

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.

Group Type EXPERIMENTAL

MK-1200

Intervention Type BIOLOGICAL

IV Infusion

Antiemetic

Intervention Type DRUG

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

Part 2: MK-1200 Cohort A

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

Group Type EXPERIMENTAL

MK-1200

Intervention Type BIOLOGICAL

IV Infusion

Antiemetic

Intervention Type DRUG

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

Part 2: MK-1200 Cohort B

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

Group Type EXPERIMENTAL

MK-1200

Intervention Type BIOLOGICAL

IV Infusion

Antiemetic

Intervention Type DRUG

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

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

MK-1200

IV Infusion

Intervention Type BIOLOGICAL

Antiemetic

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

Intervention Type DRUG

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Confirmed advanced (unresectable and/or metastatic) solid tumor: gastric cancer (including gastroesophageal junction cancer), esophageal cancer, biliary tract cancer, or pancreatic ductal adenocarcinoma
* Participants who experienced Adverse Events (AEs) due to previous anticancer therapies must have recovered to \< Grade 1 or baseline
* Human immunodeficiency virus (HIV)-infected participants must have well controlled HIV on antiretroviral therapy
* Hepatitis B surface antigen (HBsAg) positive participants are eligible if they have received Hepatitis B Virus (HBV) antiviral therapy for at least 4 weeks and have undetectable HBV viral load
* Participants with a history of Hepatitis C Virus (HCV) infection are eligible if HCV viral load is undetectable
* Received and progressed on or after 1 or 2 prior lines of therapy

Exclusion Criteria

* Active severe digestive disease
* History of acute myocardial infarction; unstable angina; stroke or transient ischemic attack within 6 months prior to the first dose of study intervention
* Diabetes or hypertension that cannot be controlled by medication
* HIV-infected participants with a history of Kaposi's sarcoma and/or Multicentric Castleman's Disease
* Received prior systemic anticancer therapy including investigational agents within 4 weeks before study intervention
* Received prior radiotherapy within 2 weeks of start of study intervention, or has radiation-related toxicities, requiring corticosteroids
* Known additional malignancy that is progressing or has required active treatment within the past 2 years
* Known active central nervous system (CNS) metastases and/or carcinomatous meningitis
* Active infection requiring systemic therapy
* Have not adequately recovered from major surgery or have ongoing surgical complications
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Merck Sharp & Dohme LLC

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Medical Director

Role: STUDY_DIRECTOR

Merck Sharp & Dohme LLC

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

The University of Louisville, James Graham Brown Cancer Center ( Site 0004)

Louisville, Kentucky, United States

Site Status

START Midwest ( Site 0014)

Grand Rapids, Michigan, United States

Site Status

South Texas Accelerated Research Therapeutics (START) ( Site 0005)

San Antonio, Texas, United States

Site Status

START Mountain Region ( Site 0015)

West Valley City, Utah, United States

Site Status

University of Virginia Health System-Hematology-Oncology ( Site 0009)

Charlottesville, Virginia, United States

Site Status

The Alfred Hospital ( Site 0103)

Melbourne, Victoria, Australia

Site Status

Bradfordhill-Clinical Area ( Site 0301)

Santiago, Region M. de Santiago, Chile

Site Status

Beijing Cancer hospital-Digestive Oncology ( Site 0401)

Beijing, Beijing Municipality, China

Site Status

Fujian Cancer Hospital-oncology department ( Site 0409)

Fuzhou, Fujian, China

Site Status

First Huai'an Hospital Affiliated to Nanjing Medical University ( Site 0415)

Huai'an, Jiangsu, China

Site Status

Rambam Health Care Campus-Oncology Division ( Site 0602)

Haifa, , Israel

Site Status

Hadassah Medical Center ( Site 0604)

Jerusalem, , Israel

Site Status

Rabin Medical Center-Oncology ( Site 0603)

Petah Tikva, , Israel

Site Status

Sheba Medical Center ( Site 0605)

Ramat Gan, , Israel

Site Status

Sourasky Medical Center ( Site 0601)

Tel Aviv, , Israel

Site Status

Samsung Medical Center-Division of Hematology/Oncology ( Site 1003)

Seoul, , South Korea

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States Australia Chile China Israel South Korea

Related Links

Access external resources that provide additional context or updates about the study.

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

2023-508684-68-00

Identifier Type: REGISTRY

Identifier Source: secondary_id

U1111-1298-7820

Identifier Type: REGISTRY

Identifier Source: secondary_id

MK-1200-002

Identifier Type: OTHER

Identifier Source: secondary_id

1200-002

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Phase I of XKH002 Injection in Patients
NCT06196762 RECRUITING PHASE1