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Tamoxifen + Aminoglutethimide

Austrian Breast & Colorectal Cancer Study Group · Phase 3 active Small molecule

Tamoxifen acts as a selective estrogen receptor modulator (SERM) to inhibit estrogen's action in breast tissue, while aminoglutethimide inhibits the enzyme CYP11A1, which is involved in the synthesis of steroids, including estrogen.

Tamoxifen acts as a selective estrogen receptor modulator (SERM) to inhibit estrogen's action in breast tissue, while aminoglutethimide inhibits the enzyme CYP11A1, which is involved in the synthesis of steroids, including estrogen. Used for Adjuvant treatment of breast cancer in postmenopausal women with estrogen receptor-positive disease.

At a glance

Generic nameTamoxifen + Aminoglutethimide
Also known asNolvadex + Orimeten
SponsorAustrian Breast & Colorectal Cancer Study Group
Drug classSERM and CYP11A1 inhibitor
Targetestrogen receptor
ModalitySmall molecule
Therapeutic areaOncology
PhasePhase 3

Mechanism of action

Tamoxifen's SERM activity blocks estrogen receptors in breast tissue, which can help slow or stop the growth of hormone receptor-positive breast cancer cells. Aminoglutethimide's inhibition of CYP11A1 reduces the production of estrogen, which can also slow the growth of hormone receptor-positive breast cancer cells.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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