Treatment
Estrogen clinical trials
We’re tracking 78 recruiting studies that include Estrogen, each written for real people, not researchers, below.
Recruiting studies
- NCT05457972RecruitingPhase 4
Using vaginal estrogen to support breastfeeding after delivery
This study tests whether using estrogen placed in the vagina after childbirth can help breastfeeding or milk pumping go more smoothly. It’s aimed at people who are at least 6 weeks postpartum and plan to breastfeed or pump.
Cleveland, OhioAges 18–50 - NCT05283421Recruiting
Improving tests for abnormal cervical cells after menopause
This trial is looking at better ways to diagnose changes in the cervix in women after menopause. It may help by improving how doctors decide which cervical abnormalities need attention and follow-up.
RandersAges 50 years+ - NCT03723928Recruiting
Blood test–guided monitoring for metastatic breast cancer treatment
This study checks whether specific blood “tumor marker” levels can help monitor how hormone receptor–positive, HER2-negative metastatic breast cancer responds to first-line therapy. It uses regular blood tests (and sometimes scans) to see if this marker-based monitoring is useful and reliable.
Anchorage, AlaskaAges 18 years+ - NCT03011684RecruitingPhase 3
Preserve eggs using tamoxifen and letrozole during new breast cancer treatment
This study tests whether taking tamoxifen and letrozole (with fertility injections) can help people with newly diagnosed, estrogen-sensitive breast cancer preserve eggs before cancer treatment starts. It may help protect future fertility by collecting eggs early, before chemotherapy or other treatments begin.
San Francisco, CaliforniaAges 18–50 - NCT02945579Recruiting
Testing skipping breast surgery or radiation for top responders
This trial studies whether some people with early-stage breast cancer who respond extremely well to hormone/chemo/targeted treatment can safely skip breast surgery and/or radiation. It aims to reduce side effects without increasing cancer risk in carefully selected patients.
Gilbert, ArizonaAges 30 years+ - NCT02476786RecruitingPhase 2
Hormone treatment only for older ER-positive breast cancer
This Phase 2 study tests whether using hormone (endocrine) treatment alone can control breast cancer in people age 70 and older. It targets breast cancers that are estrogen-receptor positive and HER2 negative, aiming to avoid chemotherapy-like treatments in suitable patients.
St Louis, MissouriAges 70 years+
Common questions
- Are there clinical trials studying Estrogen?
- Yes. Clin2 currently lists 78 recruiting studies that include Estrogen, drawn from the U.S. registry and rewritten for real people so you can see what each is testing and who it's for.
- How do I know if I qualify for a Estrogen trial?
- Each study lists its own eligibility criteria — rules about condition, age, and prior treatments. On every Clin2 trial page we explain these in plain language and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Is Estrogen an approved treatment?
- A drug being studied in a trial may be investigational (still being tested) or already approved and being studied for a new use. Each study page explains what phase it's in. Clin2 does not provide medical advice — talk with your doctor about whether Estrogen or a specific trial is right for you.
Related treatments
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. A drug appearing here is being studied in a trial and may be investigational. Talk with your doctor about whether a specific treatment or trial is right for you.