Study of Orally Administered MOMA-341 in Participants With Advanced or Metastatic Solid Tumors

NCT ID: NCT06974110

Last Updated: 2026-01-16

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

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

132 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-07-16

Study Completion Date

2028-05-31

Brief Summary

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This Phase 1, multi-center, open-label, dose escalation and dose optimization study is designed to assess the safety, tolerability, pharmacokinetics (PK), pharmacodynamics (PDx), and preliminary clinical activity of MOMA-341 administered orally as a single agent or combination therapy in patients with microsatellite instability high (MSI-H) or DNA mismatch repair deficiency (dMMR) solid tumors.

Detailed Description

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MOMA-341 is a novel therapeutic agent designed to target microsatellite instability high (MSI-H) or DNA mismatch repair deficiency (dMMR) cancers by inhibiting Werner helicase. MOMA-341 is being developed as a single agent and in combination with either chemotherapy or immunotherapy in patients with certain advanced or metastatic solid tumors.

This phase 1, first-in-human, open-label study of MOMA-341 is primarily intended to evaluate the safety and tolerability of MOMA-341 when administered orally as a single agent (Treatment Arm 1), in combination with irinotecan (Treatment Arm 2), or in combination with immunotherapy (Treatment Arm 3). Each treatment arm of the study includes a dose-escalation phase, which means successive cohorts of patients will receive increasing oral doses of MOMA-341 as a single agent or in combination with irinotecan or immunotherapy to determine the presumptive optimal biologic dose(s) (OBD) in this population. The study also includes a dose-optimization phase that will enroll additional patients to support the confirmation of the OBD.

The data from this study conducted in patients with MSI-H or dMMR advanced or metastatic solid tumors, including safety, tolerability, PK/PDx findings, and antitumor activity, will form the basis for subsequent clinical development of MOMA-341 as a single-agent and in combination with irinotecan or immunotherapy.

Conditions

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Advanced Solid Tumor Metastatic Solid Tumor Endometrial Cancer MSI-H Cancer Colorectal Cancer Gastric Cancer dMMR Cancer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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MOMA-341 Monotherapy (Treatment Arm 1)

MOMA-341 administered as a single agent in 21-day cycles

Group Type EXPERIMENTAL

MOMA-341

Intervention Type DRUG

MOMA-341 administered orally

MOMA-341 in Combination with Irinotecan (Treatment Arm 2)

MOMA-341 administered together with irinotecan in 28-day cycles

Group Type EXPERIMENTAL

MOMA-341

Intervention Type DRUG

MOMA-341 administered orally

Irinotecan

Intervention Type DRUG

Irinotecan administered by IV infusion

MOMA-341 in Combination with Immunotherapy (Treatment Arm 3)

MOMA-341 administered together with immunotherapy in 21-day cycles

Group Type EXPERIMENTAL

MOMA-341

Intervention Type DRUG

MOMA-341 administered orally

Immunotherapy

Intervention Type DRUG

Immunotherapy administered by IV infusion

Interventions

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MOMA-341

MOMA-341 administered orally

Intervention Type DRUG

Irinotecan

Irinotecan administered by IV infusion

Intervention Type DRUG

Immunotherapy

Immunotherapy administered by IV infusion

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Age ≥ 18 years
2. Participants have unresectable advanced or metastatic solid tumors with MSI-H or dMMR alterations and histologically confirmed disease. Participants must have previously received and progressed on an anti-PD-(L)1-based regimen, unless ineligible or in a region without access to anti-PD-(L)1 therapies
3. Have at least 1 lesion at baseline (measurable or non-measurable) suitable for repeat imaging evaluation by RECIST and/or PCWG-3
4. ECOG PS ≤ 2
5. Fully recovered from clinically relevant effects of prior therapy, radiotherapy, and/or surgery \*\*hormonal therapy allowed. Palliative radiotherapy allowed
6. Adequate organ function per local labs
7. Comply with contraception requirements
8. Written informed consent must be obtained according to local guidelines

Exclusion Criteria

1. Known Werner Syndrome
2. Active prior or concurrent advanced-stage malignancy (some exceptions allowed including early-stage cancers)
3. Clinically relevant cardiovascular disease
4. Known CNS metastasis associated with progressive neurological symptoms (stable doses of corticosteroids allowed)
5. Known active uncontrolled infection
6. Known allergy, hypersensitivity, and/or intolerance to MOMA-341
7. Impaired GI function that may impact absorption
8. Patient is pregnant or breastfeeding
9. Known to be HIV positive, unless all of the following criteria are met:

1. Undetectable viral load or CD4+ count ≥300 cells/μL
2. Receiving highly active antiretroviral therapy
3. No AIDS-related illness within the past 12 months
10. Active liver disease (some exceptions are allowed)
11. Prior or ongoing condition, therapy, or laboratory abnormality that, in the investigator's opinion, may affect safety of the patient, confound the results of the study, and/or interfere with the patients participation in the study
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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MOMA Therapeutics

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Investigative Site #128

Tampa, Florida, United States

Site Status RECRUITING

Investigative Site #120

Detroit, Michigan, United States

Site Status RECRUITING

Investigative Site #110

St Louis, Missouri, United States

Site Status RECRUITING

Investigative Site #131

Raleigh, North Carolina, United States

Site Status RECRUITING

Investigative Site #121

Portland, Oregon, United States

Site Status RECRUITING

Investigative Site #127

Dallas, Texas, United States

Site Status RECRUITING

Investigative Site #129

Houston, Texas, United States

Site Status RECRUITING

Investigative Site #122

Sydney, New South Wales, Australia

Site Status RECRUITING

Investigative Site #123

Westmead, New South Wales, Australia

Site Status RECRUITING

Investigative Site #124

Woolloongabba, Queensland, Australia

Site Status RECRUITING

Investigative Site #125

Adelaide, South Australia, Australia

Site Status RECRUITING

Investigative Site #126

Clayton, Victoria, Australia

Site Status RECRUITING

Investigative Site #119

Perth, Western Australia, Australia

Site Status RECRUITING

Countries

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United States Australia

Central Contacts

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MOMA Clinical Trials

Role: CONTACT

857-285-3677

Other Identifiers

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MOMA-341-001

Identifier Type: -

Identifier Source: org_study_id

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