6 studies were found.

1.		Completed	A Comparison of Dapsone and Trimethoprim-Sulfamethoxazole in the Treatment of Pneumocystis carinii Pneumonia (PCP) in Patients with AIDS Conditions: Pneumonia, Pneumocystis carinii; HIV Infections
2.		Completed	Comparison of Two Dosage Regimens of Oral Dapsone for Prophylaxis of Pneumocystis carinii Pneumonia in Pediatric HIV Infection Conditions: Pneumonia, Pneumocystis carinii; HIV Infections
3.		Completed	Dapsone 100 mg Versus 50 as Primary Prophylaxis for Pneumocystis carinii Pneumonia (PCP) in Patients With AIDS-Related Complex (ARC) Conditions: Pneumonia, Pneumocystis carinii; HIV Infections
4.		Completed	A Phase III Comparative Study of Dapsone / Trimethoprim and Clindamycin / Primaquine Versus Sulfamethoxazole / Trimethoprim in the Treatment of Mild-to-Moderate PCP in Patients With AIDS Conditions: Pneumonia, Pneumocystis carinii; HIV Infections
5.		Completed	Randomized Phase I Study of Trimetrexate Glucuronate (TMTX) With Leucovorin (LCV) Protection Plus Dapsone Versus Trimethoprim / Sulfamethoxazole (TMP/SMX) for Treatment of Moderately Severe Episodes of Pneumocystis carinii Pneumonia Conditions: Pneumonia, Pneumocystis carinii; HIV Infections
6.		Terminated	A Study of Pentamidine Plus Dapsone in the Prevention of Pneumocystis Carinii Pneumonia (PCP) in HIV-Infected Patients Who Cannot Take Trimethoprim or Sulfonamides Conditions: Pneumonia, Pneumocystis carinii; HIV Infections