~24 spots leftby Apr 2026

Endocrine Therapy for Older Patients with Breast Cancer

Recruiting in Palo Alto (17 mi)
REaCT: REthinking Clinical Trials
Overseen byMarie-France Savard
Age: 65+
Sex: Any
Travel: May Be Covered
Time Reimbursement: Varies
Trial Phase: Phase 4
Waitlist Available
Sponsor: Ottawa Hospital Research Institute
Stay on Your Current Meds
No Placebo Group
Prior Safety Data
Approved in 12 Jurisdictions

Trial Summary

What is the purpose of this trial?

This trial is testing if older women (70+) with low-risk early breast cancer can safely skip hormone-blocking treatment. The goal is to see if they can avoid the side effects of this treatment without increasing the risk of cancer returning.

Research Team

REaCT: REthinking Clinical Trials

Marie-France Savard

Principal Investigator

Ottawa Hospital Research Institute

Eligibility Criteria

This trial is for patients aged 70 or older with early-stage, lower-risk hormone receptor-positive breast cancer. They must be able to consent and fill out questionnaires in French or English, have a new diagnosis of certain types of breast carcinoma, and have undergone specific surgeries without metastatic cancer.

Inclusion Criteria

My tumor is small and varies in aggressiveness based on its size.
I can give my consent and answer questions in English or French.
My breast cancer is ER+ and/or PR+, and HER2-.
See 2 more

Exclusion Criteria

My cancer has spread to other parts of my body.

Treatment Details

Interventions

  • Endocrine therapy (Hormone Therapy)
  • No endocrine therapy ()
Trial OverviewThe study is testing the necessity of endocrine therapy (ET) after surgery in older patients with low-risk breast cancer. It randomly assigns participants to either receive ET or no ET post-surgery to see if omitting ET can still effectively manage their condition.
Participant Groups
2Treatment groups
Experimental Treatment
Active Control
Group I: Omission of endocrine therapyExperimental Treatment1 Intervention
Omission of endocrine therapy
Group II: Administration of endocrine therapy for at least 5 yearsActive Control1 Intervention
Administration of endocrine therapy for at least 5 years

Find a Clinic Near You

Who Is Running the Clinical Trial?

Ottawa Hospital Research Institute

Lead Sponsor

Trials
585
Recruited
3,283,000+
Dr. Kathleen Gartke profile image

Dr. Kathleen Gartke

Ottawa Hospital Research Institute

Chief Medical Officer

MD, University of Ottawa

Dr. Rebecca Auer profile image

Dr. Rebecca Auer

Ottawa Hospital Research Institute

Chief Executive Officer

MD, Memorial Sloan-Kettering Cancer Centre