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Tamoxifen use in recurrent ovarian cancer in a Chinese population: A 15 ‐year clinical experience in a tertiary referral center
Author(s) -
Chan Karen Kar Loen,
Ngu Siew Fei,
Chu Mandy Man Yee,
Tse Ka Yu,
Ngan Hextan Yuen Sheung
Publication year - 2021
Publication title -
asia‐pacific journal of clinical oncology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.73
H-Index - 29
eISSN - 1743-7563
pISSN - 1743-7555
DOI - 10.1111/ajco.13478
Subject(s) - tamoxifen , medicine , tolerability , oncology , ovarian cancer , population , retrospective cohort study , breast cancer , chemotherapy , cancer , adverse effect , environmental health
Aim To review the clinical use and the effectiveness of tamoxifen in patients with advanced or recurrent ovarian cancer. Methods A retrospective review of clinical records was conducted in patients who received tamoxifen for the treatment of ovarian cancer between 2002 and 2016. We reviewed the clinical setting that it was given, duration of use, patients' tolerability, clinical benefit and progression‐free survival. We also attempted to identify predictive markers for response. Results A total of 92 patients received tamoxifen during this 15‐year period. The patients received a median of 2.5 lines of chemotherapy before switching to tamoxifen, and they remained on tamoxifen for a median of 5.6 months (range 0–85 months), with 24 patients receiving it for more than 12 months. Seventy‐six patients continued on tamoxifen for more than 2 months. In this group, 75 patients had an evaluable response, either by CA 125 or clinically and clinical benefit rate (defined as complete, partial response and static disease) was seen in 42 patients (56%), with majority of patients having static disease. The median progression‐free survival was 5.3 months (95% confidence interval, 2.6–8.1). Tamoxifen was well tolerated. Hormone receptor status was not demonstrated to predict response. Conclusion Patients with advanced ovarian cancer who have failed previous lines of chemotherapy may achieve static disease with tamoxifen with minimal side effects. Tamoxifen may still have a role in the era of molecular target therapy.