Combination Treatment with Zidovudine, Didanosine, and Nevirapine in Infants with Human Immunodeficiency Virus Type 1 Infection
Katherine Luzuriaga, M.D., Yvonne Bryson, M.D., Paul Krogstad, M.D., James Robinson, M.D., Barbara Stechenberg, M.D., Michael Lamson, Ph.D., Susannah Cort, M.D., and John L. Sullivan, M.D.
Background In infants and children with maternally acquiredhuman immunodeficiency virus type 1 (HIV-1) infection, treatmentwith a single antiretroviral agent has limited efficacy. Weevaluated the safety and efficacy of a three-drug regimen ina small group of maternally infected infants.
Methods Zidovudine, didanosine, and nevirapine were administeredin combination orally to eight infants 2 to 16 months of age.The efficacy of antiretroviral treatment was evaluated by serialmeasurements of plasma HIV-1 RNA, quantitative plasma cultures,and quantitative cultures of peripheral-blood mononuclear cells.
Results The three-drug regimen was well tolerated, without clinicallyimportant adverse events. Within four weeks, there were reductionsin plasma levels of HIV-1 RNA of at least 96 percent (1.5 log)in seven of the eight study patients. Over the 6-month studyperiod, replication of HIV-1 was controlled in two infants whobegan therapy at 2 1/2 months of age. Plasma RNA levels werereduced by 0.5 to 1.5 log in five of the other six infants.
Conclusions Although further observations are needed, it appearsthat in infants with maternally acquired HIV-1 infection, combinedtreatment with zidovudine, didanosine, and nevirapine is welltolerated and has sustained efficacy against HIV-1.
Source Information
From the Department of Pediatrics, University of Massachusetts Medical School, Worcester (K.L., J.L.S.); the Department of Pediatrics, University of California at Los Angeles, Los Angeles (Y.B., P.K.); the Department of Pediatrics, University of Connecticut Medical School, Farmington (J.R.); the Department of Pediatrics, Baystate Medical Center, Springfield, Mass. (B.S.); and BoehringerIngelheim Pharmaceuticals, Ridgefield, Conn. (M.L., S.C.).
Address reprint requests to Dr. Luzuriaga at Pediatrics and Molecular Medicine, University of Massachusetts Medical School, Rm. 318, Biotech 2, 373 Plantation St., Worcester, MA 01605.
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