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Drugs in development · updated 30 October 2026

Tamoxifen: clinical trials and development status

Other names and codes: Soltamox, Nolvadex

NLM verified identityApproved in the US (FDA)

As of 30 October 2026 Tamoxifen is in 72 active clinical trials (recruiting or ongoing, phases I–III) for 33 diseases. The most advanced phase is III.

72Active trials
IIIMost advanced phase
33Diseases studied

Summary updated every week · data as of 30 October 2026. In Phuturdex you can follow Tamoxifen and get an email at every change or safety alert.

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Diseases studied

For each disease: the drug’s most advanced phase and active trials, with the reference trial on ClinicalTrials.gov. Showing 30 of 33 diseases.

DiseaseMost advanced phaseActive trialsReference trial
Breast neoplasmIII48NCT04134598
Intraductal carcinoma of the breastIII8NCT01272037
NeoplasmIII4NCT05645536
Male breast neoplasmIII3NCT01674140
InfertilityIII2NCT03011684
AnovulationIII1NCT07616973
Diffuse large B-cell lymphomaII–III1NCT06355401
Hot flashIII1NCT06440967
Local neoplasm recurrenceIII1NCT01357772
MastodyniaIII1NCT06404775
Polycystic Ovary SyndromeIII1NCT07616973
Breast carcinoma in situII3NCT06195306
Breast diseaseII2NCT07581834
Ovarian neoplasmI–II2NCT05768139
Breast lobular carcinomaII1NCT02764541
Cystic fibrosisII1NCT07289035
Ductal carcinomaII1NCT07499999
Endometrial neoplasmI–II1NCT05768139
GlioblastomaII1NCT04765098
Head and neck neoplasmsI–II1NCT05768139
Head and neck squamous cell carcinomaI–II1NCT05768139
HypogonadismII1NCT07535905
MetastasisII1NCT06914674
Pancreatic neoplasmII1NCT06914674
Prostatic NeoplasmsII1NCT07535905
Triple-negative breast neoplasmII1NCT06434064
Uterine cervix neoplasmI–II1NCT05768139
Pancreatic cystI1NCT06320990
MedulloblastomaEarly I1NCT06942039
NeuroblastomaEarly I1NCT06942039

Everything on Tamoxifen

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Source: Phuturdex analysis of ClinicalTrials.gov (U.S. National Library of Medicine), FDA and EMA data, updated 30 October 2026. Active trials = recruiting or ongoing, phases I–III. Diseases are those named by each trial (NLM MeSH terms). The estimated launch, when shown, is a Phuturdex calculation described on the Method page, not official data.

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