An Open-Label, Multicenter Study to Evaluate the Safety and Tolerability of Dideoxycytidine (ddC) in Patients With AIDS or Advanced ARC Who Previously Demonstrated Intolerance to Zidovudine (AZT) in Protocol N3300 or N3492

Completed · Phase 2

Conditions studied: HIV Infections

In brief

To demonstrate that zalcitabine (dideoxycytidine; ddC) monotherapy is safe and tolerable in the treatment of patients with AIDS or advanced AIDS related complex (ARC) who previously demonstrated intolerance to zidovudine (AZT) treatment while in Protocol N3300 (NIAID ACTG 114) or N3492 (NIAID ACTG 119). NOTE OF CAUTION FOR CONCOMITANT MEDICATIONS ON STUDY: Patients on amphotericin, pyrimethamine, sulfadiazine, trimethoprim/sulfamethoxazole, ganciclovir, intravenous pentamidine, intravenous acyclovir or oral acyclovir or other bone marrow or renal toxic drugs may not tolerate concomitant ddC. If these drugs are given concomitantly with ddC, patients should have frequent clinical and laboratory assessments, as appropriate. Drugs that are nephrotoxic or have the potential to cause peripheral neuropathy might be expected to cause increased toxicity when co-administered with ddC. Drugs that could cause serious additive toxicity when co-administered with study medication will be allowed for treatment of an acute intercurrent illness or opportunistic infection at the discretion of the investigator. Their use may be allowed with interruption of study drug for up to 35 days per episode, for a total of 90 days for the study. If the patient's condition requires chronic administration of these medications, the patient will be discontinued from study medication and followed.

Key facts

Study ID

NCT00002265

Run by

Hoffmann-La Roche

Last updated by the study team

2005-06-24

Who can join

Age: 13 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Concurrent Medication:
• Recommended:
• Prophylactic aerosolized pentamidine.
• Allowed for maintenance after recovering from infection for which initially prescribed:
• Pyrimethamine.
• Sulfadiazine.
• Amphotericin.
• Fluconazole.
• Ketoconazole (= or < 400 mg/day).
• Acyclovir ( = or < 1000 mg/day).
• Ganciclovir.
• Medications for tuberculosis or Mycobacterium avium infection.
• Allowed:
• Erythropoietin.
• Megace.
• Trimethoprim/sulfamethoxazole < or = 20 mg/kg/day.
• Nystatin.
• Low dose acetaminophen or non-steroidal anti-inflammatory agents ( = or < 3 g/day).
• Medications on which patient has been stable for 14 days prior to study entry.
• Allowed if no evidence of peripheral neuropathy at study entry:
• Isoniazid (must be receiving pyridoxine = or > 50 mg/day concomitantly).
• Phenytoin, if stable for = or > 3 months.
• Metronidazole with a study medication interruption and pre and post testing for peripheral neuropathy. Any signs of this and the patient will not be restarted on study medication.
• REFER TO NOTE OF CAUTION IN PROTOCOL SUMMARY.
• Patients must have the following:

You may not qualify if…

• Co-existing Condition:
• Patients with the following conditions or symptoms are excluded:
• An active AIDS defining opportunistic infection or other active intercurrent illnesses if their ongoing treatment requires the use of excluded medications (see Exclusion - Concurrent Medications).
• Baseline fever > 38.5 C if caused by an occult opportunistic infection or neoplasm and requiring continuous treatment with excluded medications. If the evaluation for infection is unrevealing, the patient may be entered after the evaluation is completed but while mycobacterial cultures are still pending. Patients with a history of unexplained fever > 38.5 C should be evaluated as above and/or be afebrile (T < 38.0 C) for 2 weeks prior to study entry.
• Severe AIDS dementia complex as defined by a score of < 23 on the Mini-Mental State Exam at the time of discontinuation from NIAID ACTG 114 or NIAID ACTG 119.
• Any history of peripheral neuropathy or moderate to severe peripheral neuropathy as defined below:
• A score of = or > 4 in any one category or a score of = or > 2 in two categories of the peripheral neuropathy segment of the Signs and Symptoms Questionnaire.
• Accompanied by:
• Results on the Standardized Neurological exam indicative of a moderate abnormality, particularly impaired sensation of sharp pain, light touch or vibration in lower extremities, distal extremity weakness or distal extremity hyporeflexia.
• Significant cardiac disease, defined as history of ventricular arrhythmias requiring medication, prior myocardial infarct or history of angina or ischemia changes on EKG.
• Significant liver disease, as defined by transaminases > 5 x upper limit of normal or a history of cirrhosis or ascites.
• Significant renal disease as defined by an estimated creatinine clearance < 50 ml/min.
• Concurrent Medication:
• Excluded:
• Other antiretroviral agents.
• Biologic modifiers.
• Corticosteroids.
• Other experimental agents including:
• Foscarnet.
• Ribavirin.
• ddI.
• Drugs that could cause peripheral neuropathy including:
• Hydralazine.
• Nitrofurantoin.
• Vincristine.

Where it is running

• Davies Med Ctr — San Francisco, California, United States
• Mount Zion Med Ctr — San Francisco, California, United States
• Ctr for Special Immunology — Fort Lauderdale, Florida, United States
• Dr Robert Swartz — Fort Myers, Florida, United States
• Med Service — Miami, Florida, United States
• AIDS Research Consortium of Atlanta — Atlanta, Georgia, United States
• Henry Ford Hosp — Detroit, Michigan, United States
• Graduate Hosp — Philadelphia, Pennsylvania, United States
• Humana Hosp / Med City Dallas — Dallas, Texas, United States

Full record on ClinicalTrials.gov

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