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Study of ART0380 in Patients With Biologically Selected Solid Tumors

A Phase II, Open-label, Multi-center, Basket Study of the ATR Kinase Inhibitor ART0380 Administered Orally as Monotherapy to Patients With Biologically Selected Advanced or Metastatic Solid Tumors (ARTIST)

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05798611
Acronym
ARTIST
Enrollment
36
Registered
2023-04-04
Start date
2023-09-06
Completion date
2025-05-27
Last updated
2025-11-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Solid Tumor, Metastatic Cancer, Recurrent Endometrial Cancer

Keywords

Solid Tumors, Monotherapy, Cancer cell, Oral anti-cancer

Brief summary

This interventional study will evaluate the efficacy and safety of ART0380 as monotherapy in patients whose tumors have a biology to predict for sensitivity to inhibition of Ataxia-Telangiectasia Mutated and Rad3-related protein kinase (ATR).

Detailed description

ART0380 is being developed as an oral anti-cancer agent for the treatment of patients with cancers that have defects in deoxyribonucleic acid (DNA) repair. The study will recruit selected patients with advanced or metastatic solid tumors, specifically: * Patients with persistent or recurrent endometrial cancer (EC) * Patients with advanced or metastatic solid tumors of any histology Above patients will be randomized in a 1:1 ratio to one of two dose regimens of ART0380. Safety will be evaluated on a quarterly basis, at a minimum. Patients may continue to receive ART0380 as long as they are continuing to derive benefit from treatment or until disease progression, withdrawal of consent, or until they experience unacceptable drug-related toxicity.

Interventions

Randomized patients will orally receive ART0380.

Sponsors

Artios Pharma Ltd
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients who have discontinued all previous treatments for cancer for at least 21 days or 5 half-lives (not including palliative radiotherapy at focal sites), whichever is shorter. Palliative radiotherapy must have completed 1 week prior to start of study treatment. * Resolution of all toxicities of prior therapy or surgical procedures to baseline or Grade 1 (except for hypothyroidism requiring medication, neuropathy, and alopecia, which must have resolved to Grade ≤2). * 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. * Performance status of 0-1 on the Eastern Cooperative Oncology Group scale. * Have a non-irradiated tumor tissue sample (archival or newly obtained core biopsy of a tumor lesion) available. Inclusion Criteria specific to each Arm Inclusion Criteria for Arm 1 \[ART0380 monotherapy (endometrial cancer patients)\] * Persistent or recurrent EC with biological selection. * Patients should have received taxane/platinum chemotherapy unless contraindicated. * Measurable disease. Inclusion Criteria for Arm 2 \[ART0380 monotherapy (solid tumors patients)\] * Advanced or metastatic solid cancers of any histology with biological selection. * If a Programmed cell death protein-1 /Programmed death-ligand-1 inhibitor (e.g., pembrolizumab) is approved and available for the patient's cancer, the patient should have received such treatment before participating in this study. * Radiologically evaluable disease.

Exclusion criteria

* Patients who are pregnant. * Prior treatment with an inhibitor of ATR, WEE1, checkpoint kinase 1 or PKMYT1. * Have a serious concomitant systemic disorder that would compromise the patient's ability to adhere to the protocol. * Have ongoing interstitial lung disease or pneumonitis (whether symptomatic or asymptomatic). * Patients with treated brain metastases are eligible if follow-up brain imaging after central nervous system (CNS) directed therapy shows no evidence of progression. * Have any major gastrointestinal issues that could impact absorption of ART0380. * Have a history of allergy or hypersensitivity to study drug components. * Have a significant bleeding disorder or vasculitis or had a Grade ≥3 bleeding episode within 12 weeks prior to enrollment. * Patients who plan to father a child while in the study or within 16 weeks (5 months in France) after the last administration of study treatment.

Design outcomes

Primary

MeasureTime frameDescription
Objective Response Rate (ORR)Until disease progression (Every 6 weeks from randomization Upto 2 Years)Objective Response Rate (ORR) is defined as the proportion of patients with a complete response (CR) or partial response (PR) to treatment according to Response evaluation criteria in solid tumors (RECIST v1.1).

Secondary

MeasureTime frameDescription
Progression free survival (PFS)Screening (≤28 days) Until disease progression (Every 6 weeks from randomization Upto 2 Years)The PFS is defined as the time from randomization until the earliest objective disease progression defined by RECIST v1.1 or Prostate Cancer Working Group 3 (PCWG-3) (for patients with prostate cancer in Arm 2) or death by any cause in the absence of progression, regardless of whether the patient withdraws from study medication or receives another anti-cancer therapy prior to progression.
Best overall response (BOR)Screening (≤28 days) Until disease progression (Every 6 weeks from randomization Upto 2 Years)The best overall response is the best response (complete response, and partial response) recorded from the date of randomization for each patient until the progression or censoring date in the absence of progression.
Disease control rate (DCR)Screening (≤28 days) Until disease progression (Every 6 weeks from randomization Upto 2 Years)To further explore the efficacy of ART0380 in patients with solid tumors enrolled in each of the biologically defined arms.
Duration of response (DOR)Screening (≤28 days) Until disease progression or death (Every 6 weeks from randomization Upto 2 Years)The DOR will be defined for patients with a BOR of CR/PR, as the time from the date of first documented response until date of documented progression (by RECIST v1.1) or death in the absence of disease progression.
Number of patients with adverse eventsFrom Cycle 1 (each Cycle is 21-day) Day 1 until 30-day follow-up visit (Upto 2 Years)To assess the safety and tolerability of ART0380 in patients with solid tumors.
Overall survival (OS)Screening (≤28 days) Until overall survival follow-up (Every 12 weeks until data cut-off)The OS is defined as the time from the randomization until death due to any cause.
Maximum plasma concentration (Cmax)Pre-dose Cycle 1 day 1, 2, 15, 16, 17, 18, Cycle 2 day 1, Cycle 3 day 1 Upto 2 Years (Each Cycle is 21-days)To determine the Cmax of ART0380 following single oral dosing of ART0380 in patients with solid tumors enrolled in each of the biologically defined arms.
Half life (t1/2)Pre-dose Cycle 1 days 1, 2, 15, 16, 17, 18, Cycle 2 day 1, Cycle 3 day 1 Upto 2 Years (Each Cycle is 21-days)To determine the t1/2 of ART0380 following single oral dosing of ART0380 in patients with solid tumors enrolled in each of the biologically defined arms.
Area under the plasma concentration-time curve from zero to infinity (AUC0-inf)Pre-dose Cycle 1 days 1, 2, 15, 16, 17, 18, Cycle 2 day 1, Cycle 3 day 1 Upto 2 Years (Each Cycle is 21-days)To determine the AUC0-inf of ART0380 following single oral dosing of ART0380 in patients with solid tumors enrolled in each of the biologically defined arms.
Change in tumor sizeScreening (≤28 days) Until disease progression (Every 6 weeks from randomization Upto 2 Years)The best percentage change in tumor size from baseline will be determined for each patient, ie, the maximum reduction from baseline or the minimum increase from baseline in the absence of a reduction.

Countries

France, Spain, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 5, 2026