The Safety and Effectiveness of Zidovudine (AZT) in the Treatment of HIV Infection in Patients With AIDS and Advanced ARC

Because of the high incidence of toxicity and the relatively short-term follow-up of the patients due to the early ending of the Phase II placebo-controlled experiment, it is valuable to continue to get information on the long-term toxicity of AZT. This study provides AZT for 6 months to AIDS patients who were previously enrolled in the AZT Treatment IND protocol and to patients who qualify for AZT under the drug labeling. Patients are randomized to 1 of 2 regimens for management of toxicity.