Ignite Creation Date:
2025-12-24 @ 3:33 PM
Ignite Modification Date:
2025-12-24 @ 3:33 PM
Study NCT ID:
NCT04142892
Status:
COMPLETED
Last Update Posted:
2022-04-01
First Post:
2019-10-24
Is NOT Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
Onapristone as Preoperative Treatment for Postmenopausal Women With Hormone Receptor + and HER2- Breast Cancer
Sponsor:
SOLTI Breast Cancer Research Group
Organization:
Study Overview
Official Title:
A Window of Opportunity Trial of Onapristone as Preoperative Treatment for Postmenopausal Women With Hormone Receptor-Positive and HER2-negative Breast Cancer
Status:
COMPLETED
Status Verified Date:
2022-03
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
ONAWA
Brief Summary:
ONAWA is a window of opportunity, prospective, multicenter, phase 0 trial which evaluates the effect of onapristone (ONA) on proliferation after 3 weeks of treatment in postmenopausal women with ER+/PgR+ and HER2-negative early breast cancer amenable to pre-operative endocrine therapy and surgery.
Detailed Description:
The main hypothesis is that onapristone, an antiprogestin will induce a significant proliferative arrest in HR+/HER2-negative breast cancer. The primary endpoint is chosen based on reports which related the 2.7% Ki67 value (natural log of 1) both after a 15 days1 or 3-4 months of neoadjuvant endocrine treatment with favorable breast cancer relapse free and overall survival2,3. Hence, this Ki67 cut-off (Complete Cell Cycle Arrest, or CCCA) has been consistently used in recent trials as an acceptable surrogate marker of clinical and biological efficacy, even though the achievement of a pathological complete response is very unusual in luminal tumors after preoperative endocrine therapy. Trials with biological endpoint, including the so-called window of opportunity trials such as the ONAWA study provide tumor tissue before and after a short course of a given therapy for biomarker analyses of response and resistance. The aim of these studies is to improve the investigator's understanding regarding the biologic effect of a given drug, in order to better define its target population early in its development without interfering with the standard treatment pattern of the patient.
Study Oversight
Has Oversight DMC:
False
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
Secondary ID Infos
| Secondary ID | Type | Domain | Link | View |
|---|---|---|---|---|
| 2019-001433-13 | EUDRACT_NUMBER | None | View |