Active clinical trials for "Cytomegalovirus Retinitis"

To compare cidofovir with a commonly used treatment regimen, ganciclovir given by mouth (oral) and through an eye device (intraocular) , in order to determine the safety and effectiveness of cidofovir in preventing vision loss in patients who have AIDS complicated by CMV (cytomegalovirus) retinitis. Cidofovir needs to be compared to ganciclovir to determine the best way to treat CMV retinitis.

To evaluate short-term and long-term safety and efficacy of intravenous cidofovir (HPMPC) for treatment of small peripheral cytomegalovirus (CMV) retinitis lesions. To provide data on the relative safety and efficacy of 2 doses of HPMPC as maintenance regimens.

To determine the pharmacokinetics (blood levels) of three dose treatment plans of oral ganciclovir during a 28-day dosing period. Other purposes of the study are to determine in a population of HIV seropositive persons with cytomegalovirus (CMV) viremia, the safety, tolerance, and patient acceptability of oral ganciclovir given for 28 days, to collect preliminary laboratory evidence for antiviral activity and effectiveness of three dose regimens of oral ganciclovir based on blood and urine cultures of CMV, and to relate antiviral activity to dosage and to serum ganciclovir levels. CMV retinitis is an important sight-threatening opportunistic infection which affects about 10 to 15 percent of people with AIDS. A previous study has shown that treatment with ganciclovir resulted in a significant delay in time to first retinitis progression compared to untreated controls. More studies are warranted to evaluate effects at different doses.

To evaluate the efficacy and safety of a human anti-CMV monoclonal antibody, MSL-109, as adjunct therapy for controlling CMV retinitis.

To evaluate the relative safety and efficacy of ganciclovir and foscarnet as initial treatment of patients with cytomegalovirus (CMV) retinitis.

To test and evaluate the efficacy and safety of intravenous cidofovir (Vistide, previously known as HPMPC) for the treatment of retinitis.

The use of ganciclovir (DHPG) in combination with interferon beta to prevent relapse of cytomegalovirus retinitis in patients with AIDS. While early clinical trials have shown that 30 mg/kg/week of DHPG is usually sufficient to delay or prevent relapse, neutropenia is a common dose-limiting problem in about 50 percent of patients. Since in vitro data have suggested that there is synergism between DHPG and interferon beta against cytomegalovirus, a reduced dose of DHPG in combination with a low dose of interferon beta may prevent relapse without causing neutropenia. If remission can be maintained with low-dose DHPG and interferon beta, maintenance therapy with a moderate dose of interferon beta alone will be evaluated in a subsequent protocol.

To compare the relative merits of three therapeutic regimens in patients with AIDS and CMV retinitis who have been previously treated but whose retinitis either is nonresponsive or has relapsed. These three therapeutic regimens were (1) foscarnet, (2) high-dose ganciclovir, and (3) combination foscarnet and ganciclovir. To compare two treatment strategies in patients with relapsed or nonresponsive CMV retinitis: (1) continuing the same anti-CMV drug or (2) switching to the alternate drug.

To provide oral ganciclovir to patients who require maintenance for control of cytomegalovirus (CMV) retinitis, but who lack patent permanent central venous access for long-term administration of intravenous drugs.

To evaluate whether immune globulin and ganciclovir (DHPG) results in faster initial response as compared to DHPG alone. To evaluate whether immune globulin and DHPG gives longer duration of remission than DHPG alone (i.e. 16 weeks). To evaluate the toxicities of the combination of DHPG and immune globulin as compared to those of DHPG alone. To evaluate if there is a difference between the two groups in regard to survival, immune functions, and CMV viremia and viruria.