A Phase I Trial of Tamoxifen and 9-Cis-Retinoic Acid in Breast Cancer Patients
2 other identifiers
interventional
18
1 country
1
Brief Summary
This is a dosage escalation study to estimate the maximum tolerated dose of 9-cis-retinoic acid given in combination with tamoxifen. Groups of 3 to 6 patients receive oral 9-cis-retinoic acid daily for 4 weeks, after which daily oral tamoxifen is added to the regimen. Patients continue treatment for up to 28 weeks, with tamoxifen continued after the study if medically appropriate.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_1 breast-cancer
Started May 1996
Typical duration for phase_1 breast-cancer
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 1, 1996
CompletedFirst Submitted
Initial submission to the registry
November 3, 1999
CompletedFirst Posted
Study publicly available on registry
November 4, 1999
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2002
CompletedMarch 4, 2008
January 1, 2002
November 3, 1999
March 3, 2008
Conditions
Keywords
Interventions
Eligibility Criteria
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Sponsors & Collaborators
Study Sites (1)
National Cancer Institute (NCI)
Bethesda, Maryland, 20892, United States
Related Publications (3)
Fontana JA. Interaction of retinoids and tamoxifen on the inhibition of human mammary carcinoma cell proliferation. Exp Cell Biol. 1987;55(3):136-44. doi: 10.1159/000163409.
PMID: 3666278BACKGROUNDWelsch CW, DeHoog JV. Retinoid feeding, hormone inhibition, and/or immune stimulation and the genesis of carcinogen-induced rat mammary carcinomas. Cancer Res. 1983 Feb;43(2):585-91.
PMID: 6401220BACKGROUNDJordan VC, Murphy CS. Endocrine pharmacology of antiestrogens as antitumor agents. Endocr Rev. 1990 Nov;11(4):578-610. doi: 10.1210/edrv-11-4-578. No abstract available.
PMID: 2292243BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Purpose
- TREATMENT
- Sponsor Type
- NIH
Study Record Dates
First Submitted
November 3, 1999
First Posted
November 4, 1999
Study Start
May 1, 1996
Study Completion
January 1, 2002
Last Updated
March 4, 2008
Record last verified: 2002-01