Eligibility Criteria:
Inclusion Criteria
Concurrent Medication:
Required:
* Chemoprophylaxis for Pneumocystis carinii pneumonia for all patients who have a CD4 cell count of equal or less than 200 cells/mm3.
Allowed:
* Topical and oral antifungal agents except ketoconazole and itraconazole.
* Treatment, maintenance or chemoprophylaxis with approved agents for opportunistic infections.
* Antibiotics.
* Systemic corticosteroids for 21 days or less for acute problems.
* Recombinant erythropoietin (rEPO) and granulocyte-colony stimulating factor (G-CSF, filgrastim).
* Regularly prescribed medications such as antipyretics, analgesics, allergy medications, antidepressants, sleep medications, oral contraceptives (not as a sole form of birth control), megestrol acetate, or testosterone.
* Alternative therapies, such as vitamins, acupuncture, and visualization techniques.
* \[AS PER AMENDMENT 3/30/98: Calcium channel blockers may be used only with caution.\]
Patients must have:
* HIV-1 infection documented by a licensed ELISA and confirmed by Western blot, HIV culture, HIV antigen, plasma HIV RNA, or a second antibody test other than ELISA.
* 2,000 to 200,000 HIV-1 RNA copies/ml as measured by any Roche-certified laboratory \[AS
PER AMENDMENT 3/30/98:
* using the Roche Amplicor HIV-1 Monitor\] within 30 days of study entry.
* Signed, informed consent from parent or legal guardian for patients less than 18 years of age.
Prior Medication: Required:
* More than 6 months cumulative indinavir therapy.
* Stable indinavir-containing antiretroviral regimen for at least 4 weeks \[2 weeks AS PER AMENDMENT 3/30/98\] prior to study entry.
Exclusion Criteria
Co-existing Condition:
Patients with the following conditions or symptoms are excluded:
* Any active infection requiring acute treatment within 30 days \[21 days AS PER AMENDMENT 3/30/98\] prior to study entry.
* Unexplained temperature greater than 38.5 degrees for any 7 consecutive days within 30 days prior to study entry.
* Malignancy, including Kaposi's sarcoma, that requires systemic chemotherapy.
Concurrent Medication:
Excluded:
* Non-protocol-specified immunomodulatory and/or antiretroviral agents.
* Systemic cytotoxic chemotherapy.
* Ketoconazole, itraconazole, rifampin, rifabutin, alprazolam, amiodarone, astemizole, bepridil, bupropion, cisapride, clorazepate, clozapine, diazepam, encainide, estazolam, flecainide, flurazepam, isotretinoin, meperidine, midazolam, piroxicam, propafenone, propoxyphene, quinidine, terfenadine, triazolam, zolpidem, phenytoin, phenobarbital, carbamazepine, and ergot alkaloids and \[ AS PER AMENDMENT 3/30/98: dexamethasone, ergot derivatives, and pimozide\].
Avoided:
* Herbal medications.
Prior Medication:
Excluded:
* At least 2 weeks or more total ritonavir and/or saquinavir (hard gelatin capsule).
* NNRTIs (nevirapine, delavirdine, DMP-266, etc.), saquinavir (soft gelatin capsule), nelfinavir, 141W94VX-478, and adefovir dipivoxil.
* Immunomodulator \[systemic immunomodulator AS PER AMENDMENT 3/30/98\] or investigational drug therapy within 30 days prior to entry.
* Active immunization within 30 days \[21 days AS PER AMENDMENT 3/30/98\] prior to entry.