HIV Infections Clinical Trial
Official title:
Phase I/II Open Label Evaluation of Nitazoxanide for the Treatment of Cryptosporidiosis in AIDS Patients
To determine the pharmacokinetics profile of single doses of nitazoxanide (NTZ) in patients
with AIDS-related cryptosporidial diarrhea. To determine steady state concentrations of NTZ
following repeated dosing. To assess the safety and efficacy of 4 dose levels of NTZ in
these patients.
Cryptosporidial enterocolitis in AIDS patients is frequently chronic and severe,
contributing substantially to morbidity, mortality, and health care costs in this
population. NTZ exhibits antimicrobial activity that may extend to Cryptosporidial
infection.
Status | Completed |
Enrollment | 28 |
Est. completion date | February 1996 |
Est. primary completion date | |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 18 Years to 65 Years |
Eligibility |
Inclusion Criteria Patients must have: - AIDS diagnosis according to CDC criteria. - CD4 count less than or equal to 200 cells/mm3 or CD4 count greater than or equal to 200 cells/mm3 and documented cryptosporidiosis for a minimum of 4 weeks. - Cryptosporidial diarrhea as defined by: - (1) presence of Cryptosporidium oocytes in a stool specimen within 14 days of enrollment; and (2) chronic diarrhea (i.e., an average of at least 4 bowel movements per day for a minimum of 2 weeks). - Life expectancy of at least 1 month. - Ability to tolerate food by mouth. Prior Medication: Required: - Any anti-diarrheal or anti-emetic medication for which the dosage regimen has been stable for at least 1 week prior to enrollment. - Any antiretroviral medications (e.g., zidovudine, ddI, ddC) for which the dosage regimen has been stable for at least 3 weeks prior to enrollment. Allowed: Medication for prophylaxis or maintenance therapy of opportunistic infection, stable for at least 2 weeks prior to enrollment. Exclusion Criteria Co-existing Condition: Patients with the following symptoms or conditions are excluded: Grade 4 (hematologic) or Grade 3 (for all others) toxicity. (Patients with Grade 3 toxicity for hepatic parameters may be enrolled if, in the investigator's judgment, the abnormalities are due to biliary cryptosporidiosis.) Patients with the following prior conditions are excluded: - Presence of Salmonella, Shigella, Campylobacter, Yersinia, Giardia lamblia, Entamoeba histolytica, Microsporidia, Isospora, Cyclospora, or Clostridium difficile toxin in stool (based on assessment within 14 days prior to enrollment by stool ova and parasite examination, culture, and C. difficile assay). - History of intestinal Mycobacterium avium intracellular infection or intestinal Kaposi's sarcoma. - History of Cytomegalovirus colitis, unless 28 days of therapy with ganciclovir or foscarnet completed subsequent to diagnosis. Prior Medication: Excluded: - Investigational drug therapy within 14 days of enrollment, unless available under an FDA-authorized expanded access program. - Any drug or therapy with possible anticryptosporidial activity (e.g., paromomycin, spiramycin, azithromycin, clarithromycin, hyperimmune bovine colostrum) within 14 days of enrollment. |
Endpoint Classification: Pharmacokinetics Study, Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
United States | New York Hosp / Cornell Med Ctr | New York | New York |
Lead Sponsor | Collaborator |
---|---|
Unimed Pharmaceuticals |
United States,
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