Study of ART6043 in Advanced/Metastatic Solid Tumors Patients

NCT ID: NCT05898399

Last Updated: 2025-10-15

Basic Information

• Recruitment Status: ACTIVE_NOT_RECRUITING
• Clinical Phase: PHASE1/PHASE2
• Total Enrollment: 220 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2023-06-30
• Study Completion Date: 2026-12-14

Brief Summary

This interventional study will evaluate the safety, tolerability, pharmacokinetics, and preliminary efficacy of ART6043 as monotherapy or in combination with olaparib.

Detailed Description

ART6043 is being developed as an oral anti-cancer agent in combination with a poly (adenosine diphosphate ribose) polymerase (PARP) inhibitor (PARPi) in patients with cancers that harbor defects in DNA repair.

The study will consist of two parts:

1. Part A (Dose-escalation phase): Part A will evaluate ART6043 as monotherapy (Part A1) in patients with advanced or metastatic cancer and in combination with olaparib (Part A2), in patients with advanced or metastatic cancer with genetic lesions that cause loss of function of known DNA Damage Response (DDR) genes. Olaparib is also referred as PARPi.

2. Part B (dose-expansion phase): To further confirm the safety of ART6043 in combination with olaparib (Part B1) and to assess initial effectiveness of ART6043 in combination compared to olaparib alone (Part B2) in patients with certain types of breast cancer.

Patients may continue to receive ART6043 and/or olaparib as long as they may be continuing to derive clinical benefit as assessed by the investigator and/or until disease progression, withdrawal of consent or until they experience unacceptable drug-related toxicity.

Conditions

Advanced Solid Tumor; Metastatic Solid Tumor

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: SEQUENTIAL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

Part A1 (ART6043 as monotherapy)

Patients with advanced or metastatic cancer will receive ART6043 administered in 21-day cycles.

Group Type: EXPERIMENTAL

ART6043

Intervention Type: DRUG

ART6043 will be given orally.

Part A2 (ART6043 in combination with olaparib)

Patients with advanced or metastatic cancer and with PARPi as an appropriate treatment option will receive ART6043 in combination with olaparib twice daily (BID) in 21-day cycles.

Group Type: EXPERIMENTAL

ART6043

Intervention Type: DRUG

ART6043 will be given orally.

Olaparib

Intervention Type: DRUG

Olaparib will be given orally.

Part B1 (ART6043 in combination with olaparib)

Patients with g/sBRCA-m, HER2-ve locally advanced or metastatic breast cancer will be assigned to receive ART6043 in combination with olaparib.

Group Type: EXPERIMENTAL

ART6043

Intervention Type: DRUG

ART6043 will be given orally.

Olaparib

Intervention Type: DRUG

Olaparib will be given orally.

Part B2 (ART6043 in combination with olaparib)

Patients with g/sBRCA-m, HER2-ve locally advanced or metastatic breast cancer will be randomly assigned to receive ART6043 in combination with olaparib or olaparib alone.

Group Type: EXPERIMENTAL

ART6043

Intervention Type: DRUG

ART6043 will be given orally.

Olaparib

Intervention Type: DRUG

Olaparib will be given orally.

Interventions

ART6043

ART6043 will be given orally.

Intervention Type: DRUG

Olaparib

Olaparib will be given orally.

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

• Patients who have discontinued all previous chemotherapeutic agents, non-hormonal targeted therapy, or investigational drugs for at least 21 days or 5 half-lives (not including palliative radiotherapy at focal sites), whichever is shorter. Endocrine and hormonal therapies for the treatment of cancer must have been discontinued (unless for the treatment of Prostate Cancer) at least 7 days before receiving study medication. Palliative radiotherapy must have completed prior to start of study treatment.
• Resolution of all toxicities of prior therapy or surgical procedures.
• Performance status of 0-2 on the Eastern Cooperative Oncology Group (ECOG) scale.
• Have adequate organ function.
• Patients of childbearing potential and patients with partners of childbearing potential are required to use highly effective contraception.
• Have an estimated life expectancy of ≥12 weeks, in the judgment of the investigator.

• Advanced or metastatic cancer. Tumors with genetic lesions known to cause loss of function of known DDR genes based on available pre-existing testing are encouraged.

• Advanced or metastatic cancer with genetic lesions known to cause loss of function of known DDR genes based on available, pre-existing testing.
• Patients for whom a PARPi is an appropriate treatment option. Patients may have received prior treatment with a PARPi.

• Histologically or cytologically confirmed HER2-ve locally advanced or metastatic carcinoma of the breast.
• Documentation of a deleterious or suspected deleterious g/sBRCA mutation.
• No more than 3 prior chemotherapy-inclusive schedules (including antibody conjugates) for locally advanced and/or metastatic disease.
• Prior treatment with a taxane in the neoadjuvant, adjuvant, locally advanced, or metastatic setting unless medically contraindicated.
• Patients must have received no or ≤1 month of prior treatment with a PARPi.

Exclusion Criteria

• Patients who are pregnant.
• Patients with Myelodysplastic syndrome (MDS)/Acute myeloid leukemia (AML) or with features suggestive of MDS/AML.
• Have ongoing interstitial lung disease or pneumonitis.
• Have any major gastrointestinal issues that could impact absorption of ART6043 or olaparib.
• Patients with brain metastases (patients with treated brain metastases could be eligible if follow-up brain imaging after central nervous system-directed therapy shows no evidence of progression).
• Have received a live vaccine within 30 days before the first dose of study treatment.
• Recent major surgery within 4 weeks prior to entry into the study.
• Have a significant bleeding disorder or vasculitis or had a Grade ≥3 bleeding episode within 12 weeks prior to enrollment.
• Have a history of allergy or hypersensitivity to study drug components.

• First-line locally advanced and/or metastatic breast cancer with no prior adjuvant chemotherapy.
• Inflammatory breast cancer.

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Artios Pharma Ltd

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Locations

South Texas Accelerated Research Therapeutics (START) - Midwest

Grand Rapids, Michigan, United States

Memorial Sloan-Kettering Cancer Center (MSKCC)

New York, New York, United States

Stephenson Cancer Center - Oncology

Oklahoma City, Oklahoma, United States

Jefferson University Hospitals - Kimmel Cancer Center

Philadelphia, Pennsylvania, United States

SCRI oncology partners

Nashville, Tennessee, United States

Mary Crowley Cancer Center - Clinic

Dallas, Texas, United States

The University of Texas - MD Anderson Cancer Center

Houston, Texas, United States

Countries

United States

Other Identifiers

ART6043C001

Identifier Type: -

Identifier Source: org_study_id