A First-in-human Study of PARP1 Selective Inhibitor, IMP1734, in Participants With Advanced Solid Tumors

NCT ID: NCT06253130

Last Updated: 2025-12-01

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/PHASE2

Total Enrollment

70 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-12-11

Study Completion Date

2026-12-01

Brief Summary

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This study will evaluate the preliminary efficacy of IMP1734 in patients with recurrent advanced/metastatic breast cancer, ovarian cancer and metastatic castrate resistant prostate cancer (mCRPC) with deleterious/suspected deleterious mutations of select homologous recombination repair (HRR) genes.

Detailed Description

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This study will evaluate the safety, tolerability and preliminary efficacy of IMP1734 as monotherapy in patients with recurrent, advanced/metastatic solid tumors. The study consists of 3 parts: Dose escalation, Dose Optimization and Dose expansion.

In dose escalation (Part1), the study will identify the maximum tolerated dose (MTD) or maximum achievable dose (MAD) in solid tumor.

In dose optimization (Part 2), the study will further evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, and anti-tumor activity of select doses of IMP1734.

In dose expansion (Part 3) the recommended dose escalation (RDE) of IMP1734 monotherapy will be evaluated in patients with recurrent, advanced/metastatic breast cancer, ovarian cancer and mCRPC with deleterious/suspected deleterious mutations of select homologous recombination repair (HRR) gene mutations.

Conditions

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Advanced Solid Tumor

Study Design

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Allocation Method

NA

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Cohort 1

IMP1734 monotherapy; oral tablet(s) daily (except for the single-dose period). The maximum trial duration is 3 years after the last participant's first treatment in the trial.

Group Type EXPERIMENTAL

IMP1734

Intervention Type DRUG

PARP1 selective inhibitor

Interventions

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IMP1734

PARP1 selective inhibitor

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Breast cancer; must have received at least one prior chemotherapy in neoadjuvant/adjuvant/metastatic setting, must have received hormonal therapy if HR+,
* HGSOC or high grade endometrioid EOC, fallopian tube or primary peritoneal cancer; must have received at least one prior platinum-based chemotherapy for advanced disease
* mCRPC with ongoing ADT, must have received NHA and up to 1 prior line of taxane chemotherapy
* Age ≥ 18 years at the time of informed consent
* Eastern Cooperative Oncology Group (ECOG) performance status ≤1
* Adequate organ function
* Life expectancy ≥ 12 weeks
* Should have evaluable disease as defined by RECIST1.1 and/or CA125 or PSA
* Female subjects of childbearing potential and male subjects must agree to use an effective method of contraception from study entry up to 6 months after the last dose of IMP1734
* deleterious or suspected deleterious germline or somatic mutations of select HRR genes
* up to 1 prior line of PARP inhibitor containing treatment

Exclusion Criteria

* Any investigational or approved anti-cancer therapies administered within 28 days/ before the first dose of IMP1734
* Have received prior PARP1 selective inhibitors
* Mean resting QTcF \> 470 ms or QTcF \< 340 ms
* Active or untreated central nervous system (CNS) metastases and/or carcinomatous meningitis.
* Infections

\- An active hepatitis B/C infection
* Any known predisposition to bleeding
* Unable to swallow oral medications OR have malabsorption syndrome or any other uncontrolled gastrointestinal condition that might impair the bioavailability
Minimum Eligible Age

18 Years

Maximum Eligible Age

89 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Impact Therapeutics, Inc.

INDUSTRY

Sponsor Role collaborator

Eikon Therapeutics

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Viola Chen, MD

Role: STUDY_DIRECTOR

Eikon Therapeutics

Locations

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The University of Arizona Cancer Center

Tucson, Arizona, United States

Site Status RECRUITING

University of Arkansas Winthrop P. Rockefeller Cancer Institute

Little Rock, Arkansas, United States

Site Status ENROLLING_BY_INVITATION

Hoag Health Center Irvine

Irvine, California, United States

Site Status RECRUITING

University California Irvine

Irvine, California, United States

Site Status RECRUITING

Sharp Memorial Hospital

San Diego, California, United States

Site Status ENROLLING_BY_INVITATION

University of California San Francisco (UCSF)

San Francisco, California, United States

Site Status RECRUITING

Sarah Cannon Research Institute Health One

Denver, Colorado, United States

Site Status RECRUITING

Smilow Cancer Hospital at Yale New Haven

New Haven, Connecticut, United States

Site Status RECRUITING

Advent Health Research Institute

Celebration, Florida, United States

Site Status RECRUITING

Sylvester Comprehensive Cancer Center

Miami, Florida, United States

Site Status ENROLLING_BY_INVITATION

University of Michigan Rogel Cancer Center

Ann Arbor, Michigan, United States

Site Status ENROLLING_BY_INVITATION

Karmanos Cancer Institute

Detroit, Michigan, United States

Site Status RECRUITING

Henry Ford Health

Detroit, Michigan, United States

Site Status ENROLLING_BY_INVITATION

University of Minnesota-Clinical Research Unit

Minneapolis, Minnesota, United States

Site Status ENROLLING_BY_INVITATION

Washington University - Siteman Cancer Center

St Louis, Missouri, United States

Site Status RECRUITING

John Theurer Cancer Center

Hackensack, New Jersey, United States

Site Status ENROLLING_BY_INVITATION

Cayuga Medical Center

Ithaca, New York, United States

Site Status RECRUITING

Lifespan Cancer Institute

Providence, Rhode Island, United States

Site Status RECRUITING

Medical University of South Carolina (MUSC) - Hollings CC

Charleston, South Carolina, United States

Site Status RECRUITING

West Cancer Center & Research Institute

Germantown, Tennessee, United States

Site Status RECRUITING

Sarah Cannon Research Institue Oncology

Nashville, Tennessee, United States

Site Status RECRUITING

START - South Texas Accelerated Research Therapeutics

San Antonio, Texas, United States

Site Status RECRUITING

START Mountain Region

West Valley City, Utah, United States

Site Status RECRUITING

Scientia Clinical Research Ltd

Randwick, New South Wales, Australia

Site Status RECRUITING

Mater Cancer Care Centre, Mater Misericordiae Limited

South Brisbane, Queensland, Australia

Site Status RECRUITING

Gold Coast Private Hospital

Southport, Queensland, Australia

Site Status RECRUITING

Macquarie University

Sydney, Queensland, Australia

Site Status RECRUITING

Princess Alexandra Hospital

Woolloongabba, Queensland, Australia

Site Status RECRUITING

Peninsula and south eastern haematology and oncology group

Frankston, Victoria, Australia

Site Status RECRUITING

Cross Cancer Institute

Edmonton, Alberta, Canada

Site Status RECRUITING

BC Cancer Vancouver

Vancouver, British Columbia, Canada

Site Status ENROLLING_BY_INVITATION

Sunnybrook Research Institute

Toronto, Ontario, Canada

Site Status RECRUITING

Princess Margaret Cancer Centre-University Health Network

Toronto, Ontario, Canada

Site Status RECRUITING

Sun Yat-sen University Cancer Center

Guangzhou, Guangdong, China

Site Status RECRUITING

Chongqing University Cancer Hospital

Chongqing, , China

Site Status RECRUITING

Zhejiang Cancer Hospital

Hangzhou, , China

Site Status RECRUITING

Fudan University Shanghai Cancer Center

Shanghai, , China

Site Status RECRUITING

Righospitalet

Copenhagen, , Denmark

Site Status RECRUITING

Hospices Civils de Lyon - CHU Lyon Sud

Pierre-Bénite, Rhone, France

Site Status RECRUITING

CLCC François Baclesse

Caen, , France

Site Status RECRUITING

Institut Gustave Roussy

Villejuif, , France

Site Status RECRUITING

CHA Bundang Medical Center, CHA University

Seongnam-si, Gyeonggi-do, South Korea

Site Status RECRUITING

Gachon University - Gil Medical Center

Incheon, Namdong-gu, South Korea

Site Status RECRUITING

Severance Hospital, Yonsei University Health System

Seoul, , South Korea

Site Status RECRUITING

Hospital Universitari Parc Taulí

Sabadell, Barcelona, Spain

Site Status RECRUITING

Hospital Clinico San Carlos

Madrid, Madrid, Spain

Site Status RECRUITING

Clínica Universidad de Navarra - Hospital

Pamplona, Navarre, Spain

Site Status RECRUITING

Hospital del Mar

Barcelona, , Spain

Site Status RECRUITING

Vall d'Hebron Institute of Oncology

Barcelona, , Spain

Site Status RECRUITING

Fundacion MD Anderson Cancer Center

Madrid, , Spain

Site Status RECRUITING

START Madrid Fundación Jiménez Díaz

Madrid, , Spain

Site Status RECRUITING

START-CIOCC HM Sanchinarro Hospital

Madrid, , Spain

Site Status RECRUITING

Universidad De Sevilla - Hospital Universitario Virgen Macarena

Seville, , Spain

Site Status RECRUITING

Hospital Clinico Universitario de Valencia - INCLIVA

Valencia, , Spain

Site Status RECRUITING

Countries

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United States Australia Canada China Denmark France South Korea Spain

Central Contacts

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Ivan Sanchez

Role: CONTACT

341-777-0445

Other Identifiers

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2023-509230-19

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

EIK1003-001 (IMP1734-101)

Identifier Type: -

Identifier Source: org_study_id

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