The Impact of Drug-Induced Amenorrhea on Breast Cancer Survival
Author Information
Author(s): A.R. Bianco, L. Del Mastro, C. Gallo, F. Perrone, E. Matano, C. Pagliarulo, S. De Placido
Primary Institution: University of Naples, Italy
Hypothesis
Is the development of drug-induced amenorrhea associated with longer disease-free survival in premenopausal breast cancer patients treated with adjuvant chemotherapy?
Conclusion
Patients who developed drug-induced amenorrhea had significantly longer disease-free survival compared to those who did not.
Supporting Evidence
- 75.1% of patients developed drug-induced amenorrhea.
- Patients with amenorrhea had a relative hazard of 0.43 for disease-free survival.
- The study included only premenopausal women with confirmed early breast cancer.
Takeaway
If women with early breast cancer stop having their periods after chemotherapy, they tend to do better in terms of not getting sick again.
Methodology
The study retrospectively analyzed 221 premenopausal patients with early breast cancer who received adjuvant CMF chemotherapy, evaluating the relationship between drug-induced amenorrhea and disease-free survival.
Potential Biases
Potential bias exists in classifying patients as amenorrheic based on the timing of follow-up and the transient nature of menstrual status.
Limitations
The study is retrospective and may be affected by selection bias and incomplete menstrual data for some patients.
Participant Demographics
Median age was 43 years, with a range from 26 to 54 years; all participants were premenopausal and had metastatic axillary nodes.
Statistical Information
P-Value
p<0.001
Confidence Interval
0.24-0.77
Statistical Significance
p<0.001
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