Life sciences · Phase 3 Trial
ClinicalTrials.gov · October 1, 2026
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Phase 3 Trial.
No findings were extractable from the material analysed.
Safety was not reported in the material analysed. Check the source before drawing any conclusion about harm.
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Registry record from ClinicalTrials.gov (NCT04379570). This is a study registration, not published results. Lead sponsor: Alliance for Clinical Trials in Oncology. Recruitment status: ACTIVE_NOT_RECRUITING. Phase: PHASE3. Study type: INTERVENTIONAL. Enrollment: 1167 participants (ACTUAL). Conditions: Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, HER2 Negative Breast Carcinoma, Hormone Receptor Positive Breast Carcinoma, Invasive Breast Carcinoma, Prognostic Stage I Breast Cancer AJCC v8, Prognostic Stage II Breast Cancer AJCC v8, Prognostic Stage III Breast Cancer AJCC v8. Interventions: OTHER: Educational Intervention; OTHER: Text Message-based Navigation Intervention; BEHAVIORAL: Motivational Interviewing; OTHER: Best Practice; OTHER: Questionnaire Administration; OTHER: Quality-of-Life Assessment. Primary outcome measures: Endocrine therapy (ET) adherence at 12 months post-randomization , At 12 months post-randomization. Brief summary: This phase III trial compares an additional support program (text message reminders and/or telephone-based counseling) with usual care in making sure breast cancer patients take their endocrine therapy medication as prescribed (medication adherence). Medication adherence is how well patients take the medication as prescribed by their doctors, and good medical adherence is when patients take medications correctly. Poor medication adherence has been shown to be a serious barrier to effective treatment for hormone receptor positive breast cancer patients. Adding text message reminders and/or telephone-based counseling to usual care may increase the number of days that patients take their endocrine therapy medication as prescribed.