A Study of JMKX005425 in Patients With MSI-H/dMMR Advanced Solid Tumors
An Open-label, Multi-center Phase I Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Preliminary Efficacy of JMKX005425 Tablets in Subjects With Microsatellite Instability-High or Mismatch Repair Deficient Advanced Solid Tumors
1 other identifier
interventional
102
1 country
1
Brief Summary
This is a first-in-human, Phase I, open-label, multi-center, dose-escalation and dose expansion study to evaluate the safety, tolerability, pharmacokinetics, and preliminary efficacy of JMKX005425 in subjects with microsatellite instability-high (MSI) and/or mismatch repair deficiency (dMMR) advanced solid tumors.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started Oct 2025
Typical duration for phase_1
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 28, 2025
CompletedFirst Posted
Study publicly available on registry
October 6, 2025
CompletedStudy Start
First participant enrolled
October 22, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 1, 2028
December 1, 2025
September 1, 2025
2.1 years
September 28, 2025
November 27, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
Number of participants with dose limiting toxicities (DLTs), AEs, serious AEs (SAEs)
To assess the safety and tolerability of JMKX005425.
up to 2 years
Secondary Outcomes (4)
maximum plasma concentration (Cmax)
Up to 2 months
maximum plasma concentration (Tmax)
Up to 2 months
Objective Response Rate (ORR)
Up to 2 years
Disease Control Rate (DCR)
Up to 2 years
Study Arms (1)
JMKX005425
EXPERIMENTALSubjects will take a pre-specified dose of JMKX005425.
Interventions
Eligibility Criteria
You may qualify if:
- Have a microsatellite instability-high (MSI) and/or mismatch repair deficiency (dMMR), histologically or cytologically documented advanced solid tumor.
- Has at least one measurable lesion per RECIST v1.1.
- Has a life expectancy of ≥ 12 weeks.
- Adequate organ function.
You may not qualify if:
- Toxicities from prior anti-tumor therapy has not recovered to Grade 1 or below per CTCAE v5.0.
- History of prior malignancy in the past 3 years, with the exception of curatively treated malignancies.
- Has the dysphagia, or impairment of gastrointestinal function or gastrointestinal disease that may significantly alter the absorption of study drug.
- Has the severe chronic or active infection
- Has a history of severe cardiovascular disease.
- Subject is pregnant or breastfeeding.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Jemincarelead
Study Sites (1)
Beijing Cancer Hospital
Beijing, 100142, China
Study Officials
- PRINCIPAL INVESTIGATOR
Lin Shen
Peking University Cancer Hospital & Institute
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SEQUENTIAL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 28, 2025
First Posted
October 6, 2025
Study Start
October 22, 2025
Primary Completion (Estimated)
December 1, 2027
Study Completion (Estimated)
December 1, 2028
Last Updated
December 1, 2025
Record last verified: 2025-09