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

NCT ID: NCT06566079

Last Updated: 2025-09-08

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

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

82 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-12-27

Study Completion Date

2028-02-28

Brief Summary

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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 advanced or metastatic malignant mesothelioma or other solid tumors. The study consists of two parts, a dose escalation part (Part 1) and a dose selection optimization part (Part 2).

Detailed Description

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Conditions

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Malignant Mesothelioma Metastatic Malignant Solid Tumor Advanced Solid Tumor

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Part 1 Dose Escalation

Patients will receive ISM6331 once daily in sequential cohorts of increasing doses.

Group Type EXPERIMENTAL

ISM6331

Intervention Type DRUG

Dosage form: Capsule for oral administration.

Frequency of administration: Once daily overall of treatment.

Part 2 Dose Selection Optimization

Participants will receive ISM6331 once daily at each dose level from the two dose levels recommended by Study Review Committee.

Group Type EXPERIMENTAL

ISM6331

Intervention Type DRUG

Dosage form: Capsule for oral administration.

Frequency of administration: Once daily overall of treatment.

Interventions

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ISM6331

Dosage form: Capsule for oral administration.

Frequency of administration: Once daily overall of treatment.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Male or female participants with age ≥18 years at the time of signing the informed consent.
2. 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.
3. Participants with malignant mesothelioma must have prior exposure to at least immune checkpoint therapy and platinum-based chemotherapy.
4. 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.
5. Eastern Cooperative Oncology Group (ECOG) performance status (PS) ≤1.
6. Life expectancy of ≥12 weeks as judged by the investigator.
7. Adequate organ function as determined by medical assessment (within 7 days prior to the first dose of study treatment).
8. 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 Criteria

1. Participants who have previously received a TEAD inhibitor.
2. Participation in other therapeutic clinical studies within 28 days or 5 half-lives (whichever is shorter) prior to first dose of study treatment.
3. Anti-tumor therapy within 28 days or 5 half-lives (whichever is shorter) prior to first dose of study treatment.
4. Known active central nervous system (CNS) primary tumor or untreated CNS metastases.
5. As judged by the investigator, any evidence of severe or uncontrolled systemic diseases.
6. Unwillingness or unable to comply with the requirements of oral drug administration, or presence of a gastro-intestinal condition
7. 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.
8. 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.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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InSilico Medicine Hong Kong Limited

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Sarah Cannon Research Institute at HealthONE

Denver, Colorado, United States

Site Status RECRUITING

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

Chicago, Illinois, United States

Site Status RECRUITING

University Hospitals Cleveland Medical Center

Cleveland, Ohio, United States

Site Status RECRUITING

University of Pennsylvania - Abramson Cancer Center

Philadelphia, Pennsylvania, United States

Site Status RECRUITING

SCRI Oncology Partners

Nashville, Tennessee, United States

Site Status RECRUITING

NEXT Oncology - Austin

Austin, Texas, United States

Site Status RECRUITING

Henan Cancer Hospital

Zhengzhou, Henan, China

Site Status RECRUITING

Cancer Hospital Chinese Academy of Medical Sciences

Beijing, , China

Site Status RECRUITING

Sun Yat-Sen University Cancer Center

Guangzhou, , China

Site Status RECRUITING

Countries

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United States China

Central Contacts

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Qinhan Chen

Role: CONTACT

+86 021-50831718

Other Identifiers

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ISM6331-101

Identifier Type: -

Identifier Source: org_study_id

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