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Stage I Breast Cancer clinical trials and research
As of November 12, 2026, Find a Trial lists 6 Stage I Breast Cancer clinical trials that are recruiting, at sites in 5 countries (most in United States (5), Canada (1), Hong Kong (1)). By phase: Phase 3 (1), Phase 4 (1). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 6Clinical trials
- 5Countries
Newest Stage I Breast Cancer clinical trials
| Study | Phase | Where | Status | Registered |
|---|---|---|---|---|
| Disappearing markers for daily breast radiation delivery | — | Detroit, Michigan | Recruiting | Jul 31, 2025 |
| Revaree Plus for vaginal dryness in people with breast cancer | Phase 4 | Basking Ridge, New Jersey and 6 other locations | Recruiting | Jun 29, 2025 |
| Comparing two methods of breast reconstruction after mastectomy | — | Beijing, Beijing Municipality | Recruiting | Apr 27, 2023 |
| Telehealth exercise program for older women with breast cancer | — | Boston, Massachusetts and 3 other locations | Recruiting | Sep 10, 2022 |
| Reducing radiation for certain early-stage breast cancer patients | Phase 3 | Birmingham, Alabama and 831 other locations | Recruiting | Apr 21, 2021 |
| Exploring how exercise affects cancer recurrence | — | Durate, California and 8 other locations | Recruiting | Oct 19, 2020 |
All recruiting trials (6)
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Disappearing markers for daily breast radiation delivery
This trial will test whether Magic Ink tattoos are as safe and remain visible as standard tattoo ink for women getting radiation after breast cancer surgery.
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Revaree Plus for vaginal dryness in people with breast cancer
This trial will test whether Revaree Plus can improve vaginal dryness and related discomfort in adults with hormone-receptor–positive stage 0–III breast cancer who are on tamoxifen, aromatase inhibitors, or SERMs.
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Comparing two methods of breast reconstruction after mastectomy
This study is testing which breast reconstruction method, either above or below the muscle, works better for women after having a mastectomy for early-stage breast cancer.
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Telehealth exercise program for older women with breast cancer
This study is testing if a telehealth exercise program with protein support can help older women with breast cancer feel better during and after chemotherapy compared to a regular health education program.
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Reducing radiation for certain early-stage breast cancer patients
This study tests if certain early-stage breast cancer patients can skip radiation therapy after surgery and still have the same chance of their cancer coming back.
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Exploring how exercise affects cancer recurrence
This study is testing how different levels of aerobic exercise can help reduce the chances of cancer coming back in people who have been treated for breast, prostate, or colorectal cancer.
Related topics
Quick answers
How many Stage I Breast Cancer clinical trials are recruiting right now?
6, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 5 countries. The most sites are in United States (5 trials), Canada (1 trial), Hong Kong (1 trial), Japan (1 trial), China (1 trial). Each study page lists its sites and which ones are recruiting.
What phases are they in?
Phase 3: 1, Phase 4: 1. Trials with no phase listed are usually device, behavioural or observational studies.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.