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- W4211253141 abstract "CR1447, a novel transdermal formulation of 4-hydroxytestosterone, has aromatase-inhibiting and androgen receptor (AR)-modulating properties (IC504.4 nM) with antitumor effects against AR-positive tumor cells in vitro. This trial investigated the efficacy and safety of CR1447 for patients with metastatic estrogen receptor-positive (A) and AR-positive triple-negative breast cancers (B).(A) included patients with at most one prior endocrine therapy line without progression ≥6 months, whereas (B) included patients with ≤2 prior chemotherapy lines, all displaying advanced signs of disease. The primary endpoint was disease control at week 24 (DC24). The null hypothesis was DC24 ≤30% (A) and ≤15% (B). Thirty-seven patients were recruited (29 in (A) and 8 in (B)); accrual was stopped following an interim analysis demonstrating futility in (A) and slow accrual in (B).DC24 was attained in 5/21 (95% CI: 8.2-47.2) patients in (A) and none in (B). The median progression-free survival was 5.1 months (95% CI: 2.5-5.6) in (A) and 2.5 months (95% CI: 0.7-2.6) in (B). The median overall survival was 24.6 months (95% CI: 22.9-not applicable) in (A) and 10.8 months (95% CI: 3.3-10.9) in (B). CR1447 had a favorable safety profile without treatment-related grade 3-5 toxicities in (A). Especially no side effects linked to androgenic effects were observed.Despite this trial being negative, the 24% DC24 rate in a second-line setting, and the prolonged partial response experienced by a patient, indicate activity. Further evaluation of CR1447 in endocrine-sensitive patients or combination trials appears warranted." @default.
- W4211253141 created "2022-02-13" @default.
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- W4211253141 date "2022-03-01" @default.
- W4211253141 modified "2023-10-13" @default.
- W4211253141 title "SAKK 21/12: a phase II trial of transdermal CR1447 in breast cancer patients" @default.
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- W4211253141 doi "https://doi.org/10.1530/eo-21-0009" @default.
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