Increased risk of lipoatrophy under stavudine in HIV-1-infected patients: results of a substudy from a comparative trial.

OBJECTIVES

To compare the incidence of clinical lipodystrophy in HIV-1-infected patients receiving zidovudine or stavudine, in combination with indinavir and lamivudine, in a randomized trial.

METHODS

NOVAVIR was a randomized multicentre trial comparing stavudine/lamivudine/indinavir and zidovudine/lamivudine/indinavir in 170 patients pretreated with zidovudine, didanosine or zalcitabine (> 6 months), but naive for lamivudine, stavudine and protease inhibitors. The incidence of clinical lipodystrophy and metabolic abnormalities was assessed in a subgroup of 101 patients after 30 months of follow-up.

RESULTS

The incidence of lipoatrophy was increased in the stavudine arm versus the zidovudine arm, as followed: facial atrophy: 48 versus 22% of patients, P = 0.011, lower limb atrophy: 49 versus 22% of patients, P = 0.006, buttock atrophy: 47 versus 20% of patients, P = 0.009, venomegaly: 57 versus 24% of patients, P = 0.001. There was no significant difference in the incidence of clinical signs of central fat accumulation nor in fasting metabolic parameters at month 30 between the two arms. In multivariate analyses, the stavudine arm, previous therapy with didanosine, and a lower CD4 cell count at study entry were associated with an increased risk of lipoatrophy, whereas older patients and women had an increased risk of lipohypertrophy.

CONCLUSION

Patients receiving stavudine/lamivudine/indinavir had a greater rate of clinical lipodystrophy, mainly lipoatrophy, than those treated with zidovudine/lamivudine/indinavir.