A large proportion of breast cancers in older women have positive hormone receptors. Therefore, these women are eligible to receive adjuvant endocrine therapy to decrease their chance of cancer recurrence. Over the last few years, a new class of endocrine therapy, aromatase inhibitors (AIs), has challenged the place of tamoxifen as the gold standard adjuvant endocrine agent. We will discuss randomized clinical trials comparing tamoxifen to AIs in terms of efficacy and side effects.
Key words: breast cancer, tamoxifen, aromatase inhibitors, side effects, quality of life.
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