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Withdrawal of maintenance therapy for cytomegalovirus retinitis in AIDS patients exhibiting immunological response to HAART.

Waib, Luis Fernando; Bonon, Sandra Helena Alves; Salles, Angela Christina; Benard, Gil; de Oliveira, Augusto César Penalva; Pannuti, Claudio Sergio; Pedro, Rogério de Jesus; Costa, Sandra Cecília Botelho.
Rev Inst Med Trop Sao Paulo; 49(4): 215-9, 2007 Jul-Aug.
Artigo em Inglês | MEDLINE | ID: mdl-17823749


Before the introduction of highly active antiretroviral therapy (HAART), CMV retinitis was a common complication in patients with advanced HIV disease and the therapy was well established; it consisted of an induction phase to control the infection with ganciclovir, followed by a lifelong maintenance phase to avoid or delay relapses.


To determine the safety of CMV maintenance therapy withdrawal in patients with immune recovery after HAART, 35 patients with treated CMV retinitis, on maintenance therapy, with CD4+ cell count greater than 100 cells/mm(3) for at least three months, but almost all patients presented these values for more than six months and viral load < 30000 copies/mL, were prospectively evaluated for the recurrence of CMV disease. Maintenance therapy was withdrawal at inclusion, and patients were monitored for at least 48 weeks by clinical and ophthalmologic evaluations, and by determination of CMV viremia markers (antigenemia-pp65), CD4+/CD8+ counts and plasma HIV RNA levels. Lymphoproliferative assays were performed on 26/35 patients.


From 35 patients included, only one had confirmed reactivation of CMV retinitis, at day 120 of follow-up. No patient returned positive antigenemia tests. No correlation between lymphoproliferative assays and CD4+ counts was observed.


CMV retinitis maintenance therapy discontinuation is safe for those patients with quantitative immune recovery after HAART.