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Lipid profile in children randomized to immediate versus deferred nevirapine -based antiretroviral therapy in the PREDICT study. Kanjanavanit S , Puthanakit T , Kosalaraksa P, Hansudewechakul R , Ngampiyaskul C , Pinyakorn S , Luesomboon W, Saphonn V , Ananworanich J, Ruxrungtham K
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Lipid profile in children randomized to immediate versus deferrednevirapine-based antiretroviral therapy in the PREDICT study KanjanavanitS, PuthanakitT , KosalaraksaP, HansudewechakulR, NgampiyaskulC, PinyakornS, LuesomboonW, SaphonnV, AnanworanichJ, RuxrungthamK and on behalf of the PREDICT study group MOABO201. XIX International AIDS Conference 2012
PREDICT Study Design(2006 to 2011) 299 HIV-infected Thai and Cambodian children Aged 1-12 years old, CD4 15-24%, no prior CDC C illnesses Randomized 1: 1 Immediate ART AZT/3TC/NVP Deferred ART until CD4 < 15% Outcomes at 144 weeks High AIDS-free survival rate (98%) in both arms No differences in CDC B event rates between arms Puthanakit T, 2011 IAS [TULBPE 023]
Objective • To compare lipid profiles in children randomized to immediate versus deferred nevirapine-based antiretroviral therapy (ART)
Methods • Data was collected in patients who first started and continued antiretroviral treatment with nevirapine – based regimen • Immediate ART group • Deferred starting ART group • Deferred not on ART group
Lipid measurement • Patients > 4 hour fasting were included • Lipid measurement : standard techniques with automated chemistry analyzer • LDL by calculation
Definition • The abnormal lipid level was defined as • Total cholesterol > 200 mg/dl • LDL-Cholesterol > 130 mg/dl • HDL-Cholesterol ≤ 40 mg/dl • Triglyceride > 130 mg/dl PACTG1045 study.AIDS 2009,23:661-672. National Cholesterol Education Program.Pediatrics1992;89:495-501. PACTG1045 study.AIDS2009,23:661-672. National Cholesterol Education Program.Pediatrics 1992;89:495-501.
Results • Data were available for 263 participants • Group 1 immediate ART N= 129 • Group 2 deferred starting ART N=60 • Group 3 deferred not on ART N= 134 • Median(IQR0) age 6.5 (4.1-8.5) years • Male 42% • Median (IQR) of fasting time is 8 (8.5-9) hours
Clinical characteristics at week 0 and 144 * p < 0.05
Lipid profile of immediate and deferred treatment to nevirapine-based ART * p < 0.05 * p < 0.05 * p < 0.05 * p < 0.05
Treatment effects on lipid profiles • Reference group • Results from multivariate models, adjusted for baseline of the given endpoints and study week
Discussions • ART Naïve HIV infected children randomized to NVP-based treatment or deferred ART • Long term FU data, mild immune suppression • Low prevalence on dyslipidemia in treatment arm • PI-based and EFV-based regimens have been associated with higher rates of dyslipidemia than NVP-based regimens • van LethF.PLoS Medicine. 2004 • Jean-Jacques Parienti. CID2007 • Negredo E. CID2002 • Lainka E. Pediatrics2002 • Mankhatitham W. J Med Assoc Thai 2012
Discussions • Overall dyslipidemia rate reduced from 64% to 37% in immediate treatment arm where as the rate increased to 78% in deferred not starting ART arm • The randomized study design is a major strength; however, low number and shorter duration of ART in the deferred arm children limits longer-term comparison.
Conclusions • After 3 years of follow-up, nevirapine-based initiation achieved favorable lipid profile in children with mild to moderate HIV-associated immune deficiency • Less dyslipidemia was found in treatment group compared to deferred group
Acknowledgement • Children and their families who participated in this study • Funding • US National Institutes of Health (NIAID, NICHD, NIMH) • Antiretroviral supply • GSK/ViiV Healthcare (AZT, 3TC, ABC), Boehringer (NVP), Merck (EFV), Abbott (LPV/r), Roche (NFV) • Endpoint Review Committee members, Data Safety Monitoring Board members • Investigators and site staffs • Thailand • HIV-NAT, Thai Red Cross AIDS Research Center, Bangkok • Bamrasnaradura Infectious Diseases Institute, Nonthaburi • Srinagarind Hospital, KhonKaen University, KhonKaen • Queen SavangVadhana Memorial Hospital, Chonburi • NakornpingHospital, Chiang Mai • ChiangraiPrachanukroh Hospital,Chiang Rai • Prapokklao Hospital, Chantaburi • Cambodia • National Pediatric Hospital, Phnom Penh • Social Health Clinic, Phnom Penh