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Drug Safety-related Labeling Changes (SrLC)

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PROVERA (NDA-011839)

(MEDROXYPROGESTERONE ACETATE)

Safety-related Labeling Changes Approved by FDA Center for Drug Evaluation and Research (CDER)

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02/15/2024 (SUPPL-83)

Approved Drug Label (PDF)

5 Warnings and Precautions

WARNINGS

Additions and/or revisions underlined:

2. Malignant Neoplasms

a. Breast Cancer

The WHI substudy of daily CE (0.625 mg)-alone provided information about breast cancer in estrogen-alone users. In the WHI estrogen-alone substudy, after an average follow-up of 7.1 years, daily CE-alone was not associated with an increased risk of invasive breast cancer [relative risk (RR) 0.80] compared to placebo (see CLINICAL STUDIES).

Consistent with the WHI clinical trials, observational studies have also reported an increased risk of breast cancer for estrogen plus progestin therapy, and a smaller, increased risk for estrogen-alone therapy, after several years of use. One large meta- analysis of prospective cohort studies reported increased risks that were dependent upon duration of use and could last up to >10 years after discontinuation of estrogen plus progestin therapy and estrogen-alone therapy. Extension of the WHI trials also demonstrated increased breast cancer risk associated with estrogen plus progestin therapy. Observational studies also suggest that the risk of breast cancer was greater, and became apparent earlier, with estrogen plus progestin therapy as compared to estrogen- alone therapy.

However, these studies have not found significant variation in the risk of breast cancer among different estrogen plus progestin combinations, or routes of administration.

The use of estrogen-alone and estrogen plus progestin has been reported to result in an increase in abnormal mammograms requiring further evaluation.

17 PCI/PI/MG (Patient Counseling Information/Patient Information/Medication Guide)

PATIENT INFORMATION

Inactive ingredients table added; please refer to label for complete information