Shorter radiation may be just as effective for breast cancer patients
NCT ID NCT01413269
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at 720 women with early-stage breast cancer who had a lumpectomy. They were split into two groups: one got standard daily radiation for several weeks, the other got a shorter course of higher-dose radiation. The goal was to see if the shorter treatment works just as well to prevent the cancer from coming back, with similar side effects.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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720 people
The number who actually took part.
- Start date
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Jun 2010
- Finished
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Sep 2018
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 70 years
- Sex
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Female participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. KPS\>=60 2. histology confirmed invasive breast cancer 3. received breast conservative surgery(wide local excision and axilla dissection, or axillary sentinel node biopsy if sentinel node is negative) 4. surgical margins negative 5. primary tumor ≤5cm in the largest diameter 6. no internal mammary node or supraclavicular node metastases or distant metastasis 7. can tolerate chemotherapy,hormone therapy (if needed) and radiotherapy 8. for patients not need chemotherapy,enrollment date is required no more than 8 weeks from surgery date 9. for patients with chemotherapy first,enrollment date is required no more than 8 weeks from the last date of chemotherapy 10. patients signed written inform consent form Exclusion Criteria: 1. ductal carcinoma in situ 2. prior neoadjuvant chemotherapy 3. prior breast cancer history 4. bilateral breast cancer 5. pregnant or during lactation 6. prior or concomitant malignant tumor excluded skin cancer(not malignant melanoma) and cervix carcinoma in situ 7. active collagen vascular disease 8. prior neoadjuvant hormone therapy 9. immediate ipsilateral breast reconstruction
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Beijing hospital
Beijing, Beijing Municipality, 100730, China
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Cancer Hospital, Chinese Academy of Medical Sciences
Beijing, 100021, China
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Zhejiang Cancer Hospital
Hangzhou, Zhejiang, 310022, China
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Zhongshan Hospital Fudan University
Shanghai, Shanghai Municipality, 200032, China
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