First-in-Human Study of ATX-295, an Oral Inhibitor of KIF18A, in Patients With Advanced or Metastatic Solid Tumors, Including Ovarian Cancer
Purpose
The goal of this study is to identify a safe and tolerated dose of the orally administered KIF18A inhibitor ATX-295. In addition, this study will evaluate the pharmacokinetics, pharmacodynamics and preliminary antitumor activity of ATX-295 in patients with advanced solid tumors and ovarian cancer.
Conditions
- Advanced Solid Tumors
- Breast Cancer Recurrent
- Ovarian Cancer
- High-grade Serous Ovarian Carcinoma
- Triple Negative Breast Cancer
Eligibility
- Eligible Ages
- Over 18 Years
- Eligible Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- Patients with histologically confirmed solid tumors who have locally recurrent or metastatic disease, including HGSOC - Refractory to or relapsed after all standard therapies with proven clinical benefit, unless as deemed by the Investigator, the subject is not a candidate for standard treatment, there is no standard treatment, or the subject refuses standard treatment after expressing an understanding of all available therapies with proven clinical benefit - For the expansion cohorts, participants must have histological confirmation of HGSOC and be determined to be platinum-resistant, platinum-refractory, or platinum-intolerant - There is no limit to the number of prior treatment regimens - Have measurable or evaluable disease - Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1
Exclusion Criteria
- Clinically unstable central nervous system (CNS) tumors or brain metastasis - Any other concurrent anti-cancer treatment, except for hormonal blockade - Has undergone a major surgery within 3 weeks of starting study treatment - Medical issue that limits oral ingestion or impairment of gastrointestinal function that is expected to significantly reduce the absorption of ATX-295, however participants with a functioning distal ileostomy or colostomy may be permitted on trial - Clinically significant (ie, active) or uncontrolled cardiovascular disease - Need to use proton pump inhibitors on study or H2-receptor antagonists for the dose escalation portion of the study. - Unable to transition off strong or moderate CYP3A4 inhibitors or strong inducers - Pregnancy or intent to breastfeed or conceive a child within the projected duration of treatment Other inclusion and exclusion criteria as defined in the study protocol
Study Design
- Phase
- Phase 1
- Study Type
- Interventional
- Allocation
- Non-Randomized
- Intervention Model
- Sequential Assignment
- Primary Purpose
- Treatment
- Masking
- None (Open Label)
Arm Groups
| Arm | Description | Assigned Intervention |
|---|---|---|
|
Experimental Dose Escalation |
Subjects will be enrolled at various doses and/or schedules of ATX-295 to identify the expansion dose(s) and RP2D |
|
|
Experimental Dose Expansion: Platinum-Resistant, -Refractory, or -Intolerant HGSOC |
|
Recruiting Locations
Sarasota, Florida 34232
Latisha Hall
941-377-9993
Detroit, Michigan 48201
Nashville, Tennessee 37203
Latisha Hall
615-329-7640
Houston, Texas 77030
Fairfax, Virginia 22031
More Details
- Status
- Recruiting
- Sponsor
- Accent Therapeutics
Detailed Description
ATX-295 is an oral drug that inhibits a protein called KIF18A, an adenosine triphosphate (ATP)-dependent, plus end-directed mitotic kinesin. KIF18A facilitates chromosomal alignment and spindle microtubule dynamics during mitosis in certain advanced solid tumors. ATX-295 has been shown preclinically to induce robust anti-tumor activity of a variety of different solid tumors, including high-grade serious ovarian cancer and triple negative breast cancer. This is a first-in-human, Phase 1, open-label, single-arm, dose-escalation and Simon 2-Stage expansion study to evaluate the safety profile of ATX-295 and determine the recommended phase 2 dose (RP2D). In addition, the study aims to characterize the PK, PD, and preliminary anti-tumor activity of orally administered ATX-295. Exploratory objectives include examination of biomarker responses in relationship to ATX-295 exposure. Patients with locally advanced or metastatic solid tumors will be enrolled to preliminarily assess the anti-tumor effect, and further examine the safety and PK of ATX-295 at the RP2D.