1025
Last Update Posted: 2021-11-01
Recruiting has ended
All Genders accepted | 12 Years + |
120 Estimated Participants | No Expanded Access |
Interventional Study | Does not accept healthy volunteers |
Evaluation of Patients Who Have Not Had Success With Zidovudine
To determine the relationship of viral susceptibility to zidovudine (AZT) and baseline viral load (as determined by plasma viremia and quantitative endpoint dilution). To determine the relationship between viral load and susceptibility during different antiretroviral therapy strategies. To correlate measures of viral load and short term clinical and laboratory markers (such as weight, CD4 count, p24 antigenemia, and beta2 microglobulin) on the different therapy arms.
High-grade resistance to AZT has been detected in HIV isolates from approximately 25 percent of individuals with AIDS who received AZT for at least 1 year. To elucidate the clinical significance of in vitro AZT resistance, it is necessary to distinguish between clinical failure caused by AZT resistance and clinical decompensation caused by other factors.
High-grade resistance to AZT has been detected in HIV isolates from approximately 25 percent of individuals with AIDS who received AZT for at least 1 year. To elucidate the clinical significance of in vitro AZT resistance, it is necessary to distinguish between clinical failure caused by AZT resistance and clinical decompensation caused by other factors.
One hundred-twenty patients who have been receiving AZT for at least 1 year are randomized to 1) continue with AZT, 2) switch to treatment with didanosine at 1 of 2 doses, or 3) receive both AZT and ddI. Treatment is given for 16 weeks, with a possible extension to 32 weeks. Patients are followed at weeks 2, 4, 8, 12, and 16. For analysis purposes only, patients are stratified according to degree of susceptibility of HIV isolates to AZT.
Eligibility
Relevant conditions:
HIV Infections
If you aren't sure if you meet the criteria above speak to your healthcare professional. Criteria may be updated but not reflected here, do not hesitate to contact the study if you think are close to fitting criteria.
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Data sourced from ClinicalTrials.gov