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A Study to Evaluate the Use of Nitazoxanide to Treat Cryptosporidiosis

United States

Plain-language summary

The purpose of this study is to see if nitazoxanide (NTZ) can be used to treat AIDS patients suffering from cryptosporidiosis (diarrhea caused by the parasite Cryptosporidium).

Who can participate

Age range

3 Years – 65 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria Patients may be eligible for this study if they: * Are 3 to 65 years old (need consent of parent or guardian if under 18). * Have AIDS. * Have a CD4 count less than or equal to 200 cells/mm3. (Note: Patients with a CD4 count greater than 200 cells/mm3 but who have had cryptosporidiosis for at least 4 weeks may be eligible for this study.) * Test positive for the parasite Cryptosporidium and have severe diarrhea (at least 4 bowel movements per day) for at least 2 weeks. * Have received treatment for cryptosporidiosis but have become reinfected after treatment. * Agree to practice abstinence or use effective methods of birth control (such as a condom) before and during the study. Exclusion Criteria Patients will not be eligible for this study if they: * Are pregnant. * Are infected with certain other parasites. * Have a history of certain intestinal diseases. * Have received certain medications.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

Trial details

NCT IDNCT00002158

SponsorRomark Laboratories L.C.

Sponsor typeINDUSTRY

Study typeINTERVENTIONAL

View on ClinicalTrials.gov More Cryptosporidiosis trials

Who can participate

Age range

3 Years – 65 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.