Active clinical trials for "Pneumonia, Pneumocystis"

To evaluate the performance of radiomics in differentiating Pneumocystis jirovecii pneumonia (PCP) from other types of pneumonia and to improve the diagnostic efficacy of non-invasive tests in non-HIV patients.

This study compares three different therapies for treatment of refractory Pneumocystis carinii pneumonia (PCP) in patients with AIDS. "Refractory" means that the patient has failed to respond to at least 4 days of treatment with either of two standard therapies: (1) sulfamethoxazole/trimethoprim (SMX/TMP) or (2) pentamidine (PEN). This study compares therapy with trimetrexate (TMTX) and leucovorin (LCV) to standard therapy and standard therapy plus high-dose steroids (methylprednisolone). The purpose is to find better and safer forms of treatment for PCP in AIDS patients. There is at present no scientific information about the best treatment for an AIDS patient with PCP who is not improving while receiving the standard therapies (SMX/TMP or PEN). New drug treatments are available, including steroid therapy and TMTX, but there is no information proving that these new treatments work better than the standard therapies.

To determine the safety and effectiveness of an investigational drug trimetrexate (TMTX) with leucovorin rescue (LCV) in the treatment of Pneumocystis carinii pneumonia (PCP) in patients who have AIDS, are HIV positive, or are at high risk for HIV infection, and who have demonstrated serious adverse effects from the conventional therapies for PCP. The drugs usually used to treat PCP in AIDS patients (trimethoprim / sulfamethoxazole and pentamidine) have had to be discontinued in many patients because of severe adverse effects. Currently there are no proven alternatives to these drugs. TMTX was chosen for this trial because it has been found to be very active against the PCP organism in laboratory tests. In a preliminary trial, TMTX in combination with LCV has been effective against PCP with fewer and less severe adverse effects.

To evaluate the safety and efficacy of trimetrexate glucuronate with leucovorin protection in European patients with Pneumocystis carinii pneumonia (PCP) who are refractory to or have demonstrated severe or life-threatening toxicities to standard therapies (e.g., TMP/SMX or parenteral pentamidine).

To compare the safety of atovaquone (566C80) with intravenous (IV) pentamidine for the treatment of mild to moderate Pneumocystis carinii pneumonia (PCP) in AIDS patients who are intolerant of therapy with trimethoprim / sulfamethoxazole (TMP / SMX) by comparing the incidence of premature discontinuation of therapy due to toxicity. To compare the efficacy of 566C80 with intravenous (IV) pentamidine for the treatment of mild to moderate PCP in the same population.

To evaluate the effectiveness of two oral treatments for mild to moderate Pneumocystis carinii pneumonia (PCP): dapsone/trimethoprim or clindamycin/primaquine as compared to a standard treatment program of sulfamethoxazole/trimethoprim (SMX/TMP) to assess the tolerance of these two alternative treatments as compared to the standard treatment of SMX/TMP. Per 09/09/92 amendment, to assess the efficacy and tolerance of these two alternative treatments in patients who are intolerant to SMX/TMP. The type of treatment being studied has the advantages of wide applicability throughout the world (including developing countries) and low cost. An oral treatment is more accessible to patients than drugs given by injection or by inhalation.

To facilitate provision of atovaquone (566C80) to patients who have mild to moderate Pneumocystis carinii pneumonia (PCP) and are intolerant and/or unresponsive to trimethoprim / sulfamethoxazole (TMP / SMX ); to monitor serious adverse events attributable to 566C80.

To evaluate the safety and efficacy of trimetrexate glucuronate with leucovorin protection in patients with Pneumocystis carinii pneumonia (PCP) who are refractory to or have demonstrated severe or life-threatening toxicities to standard therapies (e.g., TMP/SMX or parenteral pentamidine).

To evaluate the safety, tolerability, and efficacy of long term, bi-weekly administration of aerosol pentamidine when used as a prophylactic agent in patients who have had at least two or more episodes of AIDS-associated Pneumocystis carinii pneumonia (PCP).

To evaluate the efficacy of WR 6026 once daily in the treatment of mild PCP. To evaluate the safety and tolerance of WR 6026. To assess the correlation between plasma WR 6026 concentrations and outcome/toxicity.