Clinical trial · Interventional
Goserelin Acetate Study for Ovarian Function in Patients With Primary Breast Cancer
Phase III Randomized Study of a Goserelin Acetate for Preservation of Ovarian Function in Patients With Primary Breast Cancer (PBC)
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Why stopped (as posted): Study stopped due to low accrual.
Summary
Brief summary (as posted)
Primary Objective: * To determine the effectiveness of goserelin acetate (Zoladex) in preserving ovarian function in premenopausal women undergoing neoadjuvant and/or adjuvant chemotherapy for primary invasive breast cancer by documenting persistence or resumption of regular menses. Secondary Objectives: * To determine the incidence of pregnancy and the effect for participants' quality of life (QOL) after chemotherapy. * To determine the overall survival and disease-free survival times of study participants.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Breast Cancer | Malignant Breast Neoplasm | CURATED_EXACT | 0.92 |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Goserelin | Drug | Goserelin | ALIAS |
Design
Arms and outcomes
Arms (2)
- type
- EXPERIMENTAL
- label
- Goserelin
- description
- 3.6 mg subcutaneously 1 week before chemotherapy, then once a month until 3 weeks after chemotherapy.
- interventionNames
- Drug: Goserelin
- type
- NO_INTERVENTION
- label
- No Goserelin
Primary outcomes (1)
- measure
- Number of Patients With Response (FSH Level + Vaginal Bleeding)
- timeFrame
- Baseline prior to chemotherapy then every 3 months after chemotherapy for 1 year
- description
- Outcome characterized in terms of two variables, each measured repeatedly over time: Follicle-stimulating hormone (FSH) level and whether vaginal bleeding occurs, each to be measured from the end of chemotherapy. For treatment comparison, "response" defined as a composite event: both \[FSH \< 15\] and vaginal bleeding observed within 12 months after the end of chemotherapy, with both FSH and vaginal bleeding baseline observed before start of chemotherapy.
Eligibility
Eligibility (as posted)
- Sex
- Female
- Minimum age
- 15 Years
- Maximum age
- 46 Years
Show eligibility criteria text
Inclusion Criteria: 1. Female patients older than 15 years and younger than 46 years. 2. Primary breast cancer (Stage I, II, or III). 3. Pathologically confirmed invasive breast carcinoma. 4. Negative hormone-receptor status. (Negative defined as ER- and PR- staining in less than 10% of tumor cells, or tumors with less than or equal to 3 fm/mg cytosol protein on ligand-binding or enzyme-linked immunoassay). 5. Premenopausal, verified before chemotherapy is begun as satisfying both: * Cyclic vaginal bleeding. * Follicle-stimulating hormone (FSH) is less than or equal to 15 IU/L. If patients are taking oral contraceptives, FSH must be measured 1-2 weeks after discontinuation. If FSH is greater than 15 and the patient has regular menses, gynecologic consultation will be required for a decision on premenopausal status. 6. Candidates for neoadjuvant and/or adjuvant chemotherapy for primary breast cancer. 7. Treatment with at least four (4) cycles of chemotherapy as planned. 8. Zubrod performance score of 0 or 1. 9. Must consent to preservation of their ovarian function and indicate their awareness of the investigational nature of this study, in keeping with institutional policy. 10. Willingness to use barrier contraception if sexually active. Exclusion Criteria: 1. Pregnancy. Women must have a negative serum pregnancy test before initiation of injection. 2. Hypersensitivity to any GnRH analog. 3. Previous receipt of systemic chemotherapy. 4. To receive at least 4 cycles of neoadjuvant and/or adjuvant chemotherapy with CMF. 5. Stage IV breast cancer. 6. Prothrombin time (PT) and partial prothrombin time (PTT) with INR \> 1.5 7. Platelets \< 50,000/mm\^3
References
Publications (0)
Data not yet available