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CompletedNCT00001010Updated Nov 4, 2021

A Study of Zidovudine Plus Acyclovir in HIV-Infected Patients

A Phase 1 interventional study of Zidovudine and Acyclovir in HIV Infections, sponsored by National Institute of Allergy and Infectious Diseases (NIAID). Completed at 3 sites in United States. Open to participants aged 19 Years and older. Per ClinicalTrials.gov, last updated 2021-11-04.

Sponsored by National Institute of Allergy and Infectious Diseases (NIAID) · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
72
Ages
19 Years and older
Sex
All
01

Study summary

To compare the effect of zidovudine (AZT) given alone with the combination of AZT and acyclovir (ACV) on the human immunodeficiency virus (HIV) in persons infected with HIV, and to study the pharmacokinetics (how fast AZT reaches certain levels in blood and how long it remains), safety, and effectiveness of AZT given alone and in combination with ACV in treating HIV-infected patients. Other studies have shown that AZT offers potential benefits to specific AIDS patients when given over long time periods, and experiments in vitro (in the test tube) suggest that ACV may stimulate the action of AZT against HIV. It is necessary to obtain information on how these drugs perform in HIV-infected humans.

Read the detailed description

Other studies have shown that AZT offers potential benefits to specific AIDS patients when given over long time periods, and experiments in vitro (in the test tube) suggest that ACV may stimulate the action of AZT against HIV. It is necessary to obtain information on how these drugs perform in HIV-infected humans.

The first 12 patients will take AZT capsules every 4 hours, and 6 of the patients will also take ACV 6 times a day. Later groups of patients will receive higher doses of AZT if the earlier doses are tolerated without significant adverse effect. It was initially planned to stop treatment after 12 weeks, but if the first 10 patients who have entered the study have tolerated treatment well, the duration of treatment will be extended with a crossover in dosage. The treatment may be lifelong, depending on the results obtained with regard to safety and effectiveness of the drugs. Blood and urine samples will be obtained periodically in order to estimate blood levels of the drugs, to study the excretion of the drugs, and to determine the effects of the drugs on HIV and on the immune system and medical condition of the patient.

02

Conditions studied

  • HIV Infections

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Keywords

  • Immune Tolerance
  • Dose-Response Relationship, Drug
  • Drug Evaluation
  • Drug Therapy, Combination
  • Acyclovir
  • Acquired Immunodeficiency Syndrome
  • AIDS-Related Complex
  • Zidovudine
03

In context

Infections

6,687 studies on the registry are indexed under Infections; 807 are open to participants now.

This study's enrollment of 72 is below the median of 120 across 4,200 interventional studies indexed under Infections.

Browse Infections studies →

Lead sponsor

National Institute of Allergy and Infectious Diseases (NIAID) is the lead sponsor of 2,401 studies on the registry; 179 are open to participants now.

Of its 396 completed or terminated interventional studies of FDA-regulated products, 294 (74%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
19 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Exclusion Criteria

  • Active drug or alcohol abuse.

Concurrent Medication:

Excluded:

  • Any chronic systemic medications.
  • Aspirin.
  • Cimetidine.
  • Flurazepam.
  • Indomethacin.
  • Ranitidine.
  • Probenecid.
  • Excluded during first 2 weeks of study:
  • Any chronic ( > 3 days) medication.
  • Acetaminophen and other drugs that are metabolized by hepatic glucuronidation.

Prior Medication:

Excluded:

  • Zidovudine (AZT) at any time.
  • Excluded within 14 days of study entry:
  • Other experimental therapy.
  • Drugs which cause neutropenia or significant nephrotoxicity.
  • Rifampin or rifampin derivatives.
  • Systemic anti-infectives.
  • Excluded within 30 days of study entry:
  • Immunomodulating agents.
  • Excluded within 3 months of study entry:
  • Any antiretroviral agent.

Patients may not have any of the following:

  • A gastrointestinal disturbance which may impair oral absorption.
  • Chronic persistent candidiasis.
  • An opportunistic infection or malignancy fulfilling the definition of AIDS-associated disease.
  • Patients with symptoms suggestive of an opportunistic infection should be evaluated within 30 days of starting drug.

Patients may not have any of the following:

  • A gastrointestinal disturbance which may impair oral absorption.
  • Chronic persistent candidiasis.
  • An opportunistic infection or malignancy fulfilling the definition of AIDS-associated disease.
  • Patients with symptoms suggestive of an opportunistic infection should be evaluated within 30 days of starting drug.

All patients will have positive antibody for HIV confirmed by any federally licensed ELISA test kit; if ELISA is negative, eligibility will be confirmed by a positive Western blot.

  • All patients will have evidence of HIV infection in the plasma as indicated by circulatory p24 antigen within 30 days prior to study entry.
  • The symptomatic HIV infection required for inclusion is defined as at least one of the following:
  • Temperature > 38.0 degrees C persisting for more than 14 consecutive days or more than 15 days in a 30-day interval prior to study entry without definable cause.
  • Diarrhea, defined as = or > 3 liquid stools per day, persisting for more than 1 month prior to entry into the study without definable cause.
  • Weight loss greater than 10 percent of body weight noted in a 120-day period prior to entry into the study.
  • Patients with persistent generalized lymphadenopathy (PGL), defined as lymph node enlargement greater than 1 cm in diameter at two or more noncontiguous extrainguinal sites, who in addition to this adenopathy have constitutional symptoms such as intermittent fever (> 38 degrees C for less than 15 days/month), sweats, malaise, and/or fatigue will also be eligible. This patient population has to have T4 cell counts = or \< 500. Potential enrollees with PGL must have two screening lymphocyte subset determinations, at least 72 hours apart, within 3 months of entry that fall in the appropriate T4 range (200 - 500 cells/mm3). If an otherwise eligible subject has one screening T4 count in the appropriate range and one that is outside this range, a third screening count will determine eligibility.
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Masking
None (open label)
Enrollment
72 participants

Interventions

  • DrugZidovudine
  • DrugAcyclovir
06

Study locations

3 sites
  • Los Angeles County - USC Med Ctr
    Los Angeles, California 90033, United States
  • Univ of California / San Diego Treatment Ctr
    San Diego, California 921036325, United States
  • Univ of Washington
    Seattle, Washington 98105, United States
07

References and documents

Publications

  • Collier AC, Bozzette S, Coombs RW, Causey DM, Schoenfeld DA, Spector SA, Pettinelli CB, Davies G, Richman DD, Leedom JM, et al. A pilot study of low-dose zidovudine in human immunodeficiency virus infection. N Engl J Med. 1990 Oct 11;323(15):1015-21. doi: 10.1056/NEJM199010113231502. PubMed 1977080 ↗
  • ICDB/90665116. Collier A, et al. Virologic and clinical response to combination zidovudine (AZT) and acyclovir (ACV) in AIDS-related complex (ARC). Twenty-ninth Intersci Conf Antimicro Agts and Chemother. 1989 Sep 17-20; 105
  • Coombs RW, Collier AC, Chaloupka K, Corey L. Decreased HIV plasma titer in response to combined low-dose zidovudine and acyclovir therapy in CDC class IVA patients. Int Conf AIDS. 1990 Jun 20-23;6(1):139 (abstract no ThB24)
  • Tartaglione TA, Collier AC, Opheim K, Gianola FG, Benedetti J, Corey L. Pharmacokinetic evaluations of low- and high-dose zidovudine plus high-dose acyclovir in patients with symptomatic human immunodeficiency virus infection. Antimicrob Agents Chemother. 1991 Nov;35(11):2225-31. doi: 10.1128/AAC.35.11.2225. PubMed 1803995 ↗
  • Ioannidis JP, Collier AC, Cooper DA, Corey L, Fiddian AP, Gazzard BG, Griffiths PD, Contopoulos-Ioannidis DG, Lau J, Pavia AT, Saag MS, Spruance SL, Youle MS. Clinical efficacy of high-dose acyclovir in patients with human immunodeficiency virus infection: a meta-analysis of randomized individual patient data. J Infect Dis. 1998 Aug;178(2):349-59. doi: 10.1086/515621. PubMed 9697714 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 4, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00001010
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
Responsible party
Sponsor
First posted
Aug 31, 2001
Completion
Oct 1990
Last update
Nov 4, 2021

Study contacts

Corey L
study chair
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2021. You cannot join it, but the record below documents what was studied.

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