Status:

RECRUITING

Study of ISM6331 in Participants With Advanced/Metastatic Malignant Mesothelioma or Other Solid Tumors

Lead Sponsor:

InSilico Medicine Hong Kong Limited

Conditions:

Malignant Mesothelioma

Metastatic Malignant Solid Tumor

Eligibility:

All Genders

18+ years

Phase:

PHASE1

Brief Summary

This is a Phase 1, open-label, multicenter, FIH study to evaluate the safety, tolerability, recommended Phase 2 dose (RP2D), PK/PD, and preliminary anti-tumor activity of ISM6331 in participants with ...

Eligibility Criteria

Inclusion

  • Male or female participants with age ≥18 years at the time of signing the informed consent.
  • Histologically confirmed unresectable advanced or metastatic malignant mesothelioma or other solid tumors, who have failed standard therapy or for whom no effective standard therapy exists, participants for part 1 is regardless of the presence or absence of the genetic alterations of the Hippo pathway, but for part 2 participants with solid tumors other than mesothelioma, genetic testing documentation must demonstrate Hippo signaling pathway dysregulation.
  • Participants with malignant mesothelioma must have prior exposure to at least immune checkpoint therapy and platinum-based chemotherapy.
  • Presence of at least one evaluable lesion in Part 1 or one measurable target lesion in Part 2 according to Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1) for participants with non-pleural mesothelioma or other solid tumors and modified RECIST (mRECIST) v1.1 for participants with malignant pleural mesothelioma.
  • Eastern Cooperative Oncology Group (ECOG) performance status (PS) ≤1.
  • Life expectancy of ≥12 weeks as judged by the investigator.
  • Adequate organ function as determined by medical assessment (within 7 days prior to the first dose of study treatment).
  • Capable of providing signed informed consent form (ICF) and complying with the requirements and restrictions listed in the ICF and in this study protocol.

Exclusion

  • Participants who have previously received a TEAD inhibitor.
  • Participation in other therapeutic clinical studies within 28 days or 5 half-lives (whichever is shorter) prior to first dose of study treatment.
  • Anti-tumor therapy within 28 days or 5 half-lives (whichever is shorter) prior to first dose of study treatment.
  • Known active central nervous system (CNS) primary tumor or untreated CNS metastases.
  • As judged by the investigator, any evidence of severe or uncontrolled systemic diseases.
  • Unwillingness or unable to comply with the requirements of oral drug administration, or presence of a gastro-intestinal condition
  • Have prior or ongoing clinically significant illness, medical condition, surgical history, physical finding, laboratory abnormality or any other conditions that, in the investigator's opinion, would not be in the best interest of the participant; or that could alter the absorption, distribution, metabolism, or excretion of the study treatment; or impair the assessment of study result.
  • Currently receiving any of Strong inhibitors or inducers of P-gp, or Sensitive substrates of P-gp, CYP1A2, CYP2B6, and CYP3A4 that cannot be discontinued 14 days or 5 half-lives for inhibitors or substrates (whichever is shorter) prior to the first dose of study treatment.
  • Other protocol inclusion and exclusion criteria may apply.

Key Trial Info

Start Date :

December 27 2024

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

February 28 2028

Estimated Enrollment :

82 Patients enrolled

Trial Details

Trial ID

NCT06566079

Start Date

December 27 2024

End Date

February 28 2028

Last Update

September 8 2025

Active Locations (9)

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Page 1 of 3 (9 locations)

1

Sarah Cannon Research Institute at HealthONE

Denver, Colorado, United States, 80218

2

The University of Chicago Medical Center - Duchossois Center for Advanced Medicine

Chicago, Illinois, United States, 60637

3

University Hospitals Cleveland Medical Center

Cleveland, Ohio, United States, 44106

4

University of Pennsylvania - Abramson Cancer Center

Philadelphia, Pennsylvania, United States, 19104