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Escalating Multiple-Dose Safety and Tolerance of WR 6026 Hydrochloride in HIV-Infected Subjects

2014-08-27 03:59:57 | BioPortfolio

Summary

To determine the maximum tolerated dose (MTD) of WR 6026 in HIV-infected patients. To determine whether any unexpected toxicities are caused by WR 6026 in HIV-infected patients. To determine whether there is additional toxicity when WR 6026 is given for 21 days rather than 14 days. To further investigate the pharmacokinetics and pharmacodynamics of WR 6026, and in particular to examine potential correlations between the area under the concentration-time curve and methemoglobinemia or other toxicities.

In recent animal studies, WR 6026 demonstrated inhibitory activity against Pneumocystis carinii pneumonia (PCP). This study will assess the safety and tolerance of this drug in HIV-infected patients who do not have PCP.

Description

In recent animal studies, WR 6026 demonstrated inhibitory activity against Pneumocystis carinii pneumonia (PCP). This study will assess the safety and tolerance of this drug in HIV-infected patients who do not have PCP.

Escalating doses of WR 6026 will be studied in successive patient cohorts. Four patients will be randomized to active drug or placebo in a 3:1 ratio at each dose level until moderate toxicity is demonstrated. If one patient at a given dose level experiences WR 6026-related moderate or worse toxicity, the sample size for all subsequent dose levels will be doubled. If two or more patients at a given dose level experience moderate or dose-limiting toxicity, an additional four patients (randomized in the same 3:1 ratio) will be entered at that level, and sample size at all subsequent dose levels will be doubled. Dose escalation will continue until three of six patients receiving active drug at a given dose level experience dose-limiting or worse toxicity, or until two of six patients at a given dose level experience life-threatening toxicity. The MTD will be defined as the dose immediately below the highest dose studied. Eight additional patients will be studied at the presumed MTD to confirm tolerance.

Study Design

Endpoint Classification: Pharmacokinetics Study, Masking: Double-Blind, Primary Purpose: Treatment

Conditions

Pneumonia, Pneumocystis Carinii

Intervention

Sitamaquine

Location

Indiana Univ Hosp
Indianapolis
Indiana
United States
462025250

Status

Completed

Source

National Institute of Allergy and Infectious Diseases (NIAID)

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:59:57-0400

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Medical and Biotech [MESH] Definitions

A species of PNEUMOCYSTIS infecting humans and causing PNEUMOCYSTIS PNEUMONIA. It also occasionally causes extrapulmonary disease in immunocompromised patients. Its former name was Pneumocystis carinii f. sp. hominis.

The prototype species of PNEUMOCYSTIS infecting the laboratory rat, Rattus norvegicus (RATS). It was formerly called Pneumocystis carinii f. sp. carinii. Other species of Pneumocystis can also infect rats.

A pulmonary disease in humans occurring in immunodeficient or malnourished patients or infants, characterized by DYSPNEA, tachypnea, and HYPOXEMIA. Pneumocystis pneumonia is a frequently seen opportunistic infection in AIDS. It is caused by the fungus PNEUMOCYSTIS JIROVECII. The disease is also found in other MAMMALS where it is caused by related species of Pneumocystis.

Infections with species in the genus PNEUMOCYSTIS, a fungus causing interstitial plasma cell pneumonia (PNEUMONIA, PNEUMOCYSTIS) and other infections in humans and other MAMMALS. Immunocompromised patients, especially those with AIDS, are particularly susceptible to these infections. Extrapulmonary sites are rare but seen occasionally.

A genus of ascomycetous FUNGI, family Pneumocystidaceae, order Pneumocystidales. It includes various host-specific species causing PNEUMOCYSTIS PNEUMONIA in humans and other MAMMALS.

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