Status:

COMPLETED

A Study of ZN-c5 and Abemaciclib in Participants With Breast Cancer

Lead Sponsor:

Zeno Alpha Inc.

Conditions:

Breast Cancer

Eligibility:

All Genders

18+ years

Phase:

PHASE1

Brief Summary

This is a Phase 1b, open-label, multicenter, dose-escalation study to evaluate the safety, tolerability, pharmacokinetics (PK), and preliminary efficacy of ZN-c5 administered orally in combination wit...

Eligibility Criteria

Inclusion

  • Age ≥ 18 years of age
  • Women can be peri- or postmenopausal, as defined by at least one of the following:
  • Age ≥ 60 years;
  • Age \< 60 years and cessation of regular menses for at least 12 consecutive months with no alternative pathological or physiological cause; and serum estradiol and follicle-stimulating hormone (FSH) level within the laboratory's reference range for postmenopausal females;
  • Documented bilateral oophorectomy;
  • Must receive a gonadotrophin-releasing hormone agonist beginning at least 4 weeks prior to the first dose of study medication
  • Histologically or cytologically confirmed diagnosis of advanced adenocarcinoma of the breast
  • Estrogen receptor positive disease
  • Human Epidermal Growth Factor Receptor 2 negative disease
  • Measurable disease per Response Evaluation Criteria in Solid Tumors v1.1

Exclusion

  • Prior therapy within the following windows:
  • Tamoxifen, aromatase inhibitor, fulvestrant, or other anti-cancer endocrine therapy \< 14 days;
  • Any investigational drug therapy \< 28 days or 5 half-lives (whichever is shorter)
  • Any prior systemic chemotherapy regardless of the stop date, but the subject must have recovered to eligibility levels from prior toxicity
  • Prior treatment with CDK4/6 inhibitors
  • Unexplained symptomatic endometrial disorders (including, but not limited to, endometrial hyperplasia, dysfunctional uterine bleeding, or cysts)

Key Trial Info

Start Date :

November 12 2020

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

October 24 2022

Estimated Enrollment :

14 Patients enrolled

Trial Details

Trial ID

NCT04514159

Start Date

November 12 2020

End Date

October 24 2022

Last Update

February 1 2023

Active Locations (5)

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Page 1 of 2 (5 locations)

1

Site 2

Gilbert, Arizona, United States, 85234

2

Site 1

Charleston, South Carolina, United States, 29414

3

Site 6

Grudziądz, Poland, 86-300

4

Site 4

Krakow, Poland, 30-348