Feb. 22, 2007 -- Women taking the diabetes drugs Avandia,
Avandamet, or Avandaryl may be more likely to fracture their bones than those
using other diabetes drugs.
That's according to the FDA and GlaxoSmithKline, maker of
Avandia, Avandamet, and Avandaryl. Those three drugs share the same active
Doctors should consider fracture risk when treating diabetic
women with Avandia, Avandamet, or Avandaryl, advises the FDA and
GlaxoSmithKline, a WebMD sponsor.
GlaxoSmithKline notified doctors of the possible risk in a
letter dated February 2007. That letter is posted on the FDA's web
It explains that possible fracture risk surfaced in a study of
4,351 patients recently diagnosed with type 2 diabetes.
Patients in the study were randomly assigned to take one of the
following diabetes drugs:
Patients were followed for four to six years as they took their
During that time, women taking rosiglitazone were more likely to
have bone fractures than women taking either metformin or glyburide.
This problem was not seen in men taking
Most of the fractures seen in the women taking rosiglitazone
affected bones in the upper arm, hand, or foot.
Bones often affected by osteoporosis (such as the hip or spine)
weren't more likely to fracture in the women on rosiglitazone.
The study's findings are mirrored in early results from another,
ongoing study, according to GlaxoSmithKline.
It's not yet known how the drugs affect women's fracture risk,
or how significant the findings are for typical diabetes patients.
Further research is underway, the drugmaker
SOURCE: News release, FDA. GlaxoSmithKline letter to Health Care Providers,