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← Childhood Ovarian Cancer

HEALTH PROFESSIONAL · SOURCE READING

Tazemetostat

Source: Childhood Ovarian Cancer Treatment (PDQ®)–Health Professional Version, National Cancer Institute.

Source updated: March 3, 2025 · Captured 2026-09-09.

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Context: Childhood Small Cell Carcinoma of the Ovary, Hypercalcemia-Type / Treatment of Childhood Small Cell Carcinoma of the Ovary, Hypercalcemia-Type

Tazemetostat is an EZH2 inhibitor that demonstrates activity against preclinical models of small cell carcinoma of the ovary with SMARCA4 loss.[10]

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Evidence (tazemetostat):

Two patients with small cell carcinoma of the ovary and SMARCA4 loss were enrolled in a phase I trial of tazemetostat.[11]

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Two patients with small cell carcinoma of the ovary and SMARCA4 loss were enrolled in a phase I trial of tazemetostat.[11]

One patient achieved a partial response, and one patient achieved prolonged stable disease.

Two patients with small cell carcinoma of the ovary and SMARCA4 loss were enrolled in a phase I trial of tazemetostat.[11]

The most common toxicities associated with tazemetostat were asthenia, anemia, anorexia, muscle spasms, nausea, and vomiting.

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Preserved source evidence · Not medical advice