Oral Ganciclovir for Patients with Cytomegalovirus Retinitis Treated with a Ganciclovir Implant
Daniel F. Martin, M.D., Baruch D. Kuppermann, M.D., Ph.D., Richard A. Wolitz, M.D., Alan G. Palestine, M.D., Hong Li, M.S., Charles A. Robinson, M.D., for The Roche Ganciclovir Study Group
Background The intraocular ganciclovir implant is effectivefor local treatment of cytomegalovirus retinitis in patientswith the acquired immunodeficiency syndrome (AIDS), but it doesnot treat or prevent other systemic manifestations of cytomegalovirusinfection.
Methods Three hundred seventy-seven patients with AIDS and unilateralcytomegalovirus retinitis were randomly assigned to one of threetreatments: a ganciclovir implant plus oral ganciclovir (4.5g daily), a ganciclovir implant plus oral placebo, or intravenousganciclovir alone. The primary outcome measure was the developmentof new cytomegalovirus disease, either contralateral retinitisor biopsy-proved extraocular disease.
Results The incidence of new cytomegalovirus disease at sixmonths was 44.3 percent in the group assigned to the ganciclovirimplant plus placebo, as compared with 24.3 percent in the groupassigned to the ganciclovir implant plus oral ganciclovir (P=0.002)and 19.6 percent in the group assigned to intravenous gancicloviralone (P<0.001). As compared with placebo, oral ganciclovirreduced the overall risk of new cytomegalovirus disease by 37.6percent over the one-year period of the study (P=0.02). However,in the subgroup of 103 patients who took protease inhibitors,the rates of new cytomegalovirus disease were low and of similarmagnitude, regardless of treatment assignment. Progression ofretinitis in the eye that initially received an implant wasdelayed by the addition of oral ganciclovir, as compared withplacebo (P=0.03). Treatment with oral or intravenous ganciclovirreduced the risk of Kaposi's sarcoma by 75 percent (P=0.008)and 93 percent (P<0.001), respectively, as compared withplacebo.
Conclusions In patients with AIDS and cytomegalovirus retinitis,oral ganciclovir in conjunction with a ganciclovir implant reducesthe incidence of new cytomegalovirus disease and delays progressionof the retinitis. Treatment with oral or intravenous gancicloviralso reduces the risk of Kaposi's sarcoma.
Source Information
From the Department of Ophthalmology, Emory University School of Medicine, Atlanta (D.F.M.); the Department of Ophthalmology, University of California, Irvine (B.D.K.); Kaiser Permanente, San Francisco (R.A.W.); Georgetown University, Washington, D.C. (A.G.P.); and Roche Global Development, Palo Alto, Calif. (H.L., C.A.R.).
Address reprint requests to Dr. Martin at the Emory University School of Medicine, Department of Ophthalmology, 1365B Clifton Rd., N.E., Atlanta, GA 30322, or at dmart04{at}emory.edu.
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