Prempro and Premarin , along with Provera, which is made by Pfizer, have come under attack in recent years as mounting evidence revealed that the drugs can increase the risk of developing breast cancer. Plaintiffs lodging claims against the drug makers argue that the manufacturers failed to voice sufficient warning about the increased risk of developing breast cancer that the drugs present. Approximately 5,000 women have filed lawsuits against Wyeth, contending that the company’s HRTs (hormone replacement therapies) caused them to develop breast cancer.

A study monitoring 3,400 recipients of Aprela indicated no evidence of increased breast cancer rates, compared with women who received Evista or placebo. Aprela recipients also showed the same relatively lower rates of breast tenderness and pain as Evista and placebo recipients – a significant benefit considering that breast discomfort is the main reason why stop using menopause drugs

Other studies revealed that Aprela recipients experienced better sleep and diminished hot flashes compared to women who were treated with placebo. Increased bone density, improved sexual function, and less vaginal dryness were also evident in late-stage tests of Aprela.

Wyeth will submit Aprela to the FDA for approved use in the second half of 2009. If approved, the drug may provide a better line of treatment for postmenopausal women. Its marketing would also help the company offset continual losses resulting from its Prempro suits.

SOURCE: Hormone Replacement Therapy › Wyeth developing another HRT for menopause