PMID- 29568609 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240213 IS - 2078-6751 (Electronic) IS - 1608-9693 (Print) IS - 1608-9693 (Linking) VI - 17 IP - 1 DP - 2016 TI - Computational models as predictors of HIV treatment outcomes for the Phidisa cohort in South Africa. PG - 450 LID - 10.4102/sajhivmed.v17i1.450 [doi] LID - 450 AB - BACKGROUND: Selecting the optimal combination of HIV drugs for an individual in resource-limited settings is challenging because of the limited availability of drugs and genotyping. OBJECTIVE: The evaluation as a potential treatment support tool of computational models that predict response to therapy without a genotype, using cases from the Phidisa cohort in South Africa. METHODS: Cases from Phidisa of treatment change following failure were identified that had the following data available: baseline CD4 count and viral load, details of failing and previous antiretroviral drugs, drugs in new regimen and time to follow-up. The HIV Resistance Response Database Initiative's (RDI's) models used these data to predict the probability of a viral load < 50 copies/mL at follow-up. The models were also used to identify effective alternative combinations of three locally available drugs. RESULTS: The models achieved accuracy (area under the receiver-operator characteristic curve) of 0.72 when predicting response to therapy, which is less accurate than for an independent global test set (0.80) but at least comparable to that of genotyping with rules-based interpretation. The models were able to identify alternative locally available three-drug regimens that were predicted to be effective in 69% of all cases and 62% of those whose new treatment failed in the clinic. CONCLUSION: The predictive accuracy of the models for these South African patients together with the results of previous studies suggest that the RDI's models have the potential to optimise treatment selection and reduce virological failure in different patient populations, without the use of a genotype. FAU - Revell, Andrew AU - Revell A AD - The HIV Resistance Response Database Initiative (RDI), London, United Kingdom. FAU - Khabo, Paul AU - Khabo P AD - Project PHIDISA, South African Military Health Service (SAMHS), Lyttelton, South Africa. FAU - Ledwaba, Lotty AU - Ledwaba L AD - Project PHIDISA, South African National Defence Force (SANDF), Lyttelton, South Africa. FAU - Emery, Sean AU - Emery S AD - Kirby Institute, University of New South Wales, Sydney, Australia. FAU - Wang, Dechao AU - Wang D AD - The HIV Resistance Response Database Initiative (RDI), London, United Kingdom. FAU - Wood, Robin AU - Wood R AD - The Desmond Tutu HIV Centre, University of Cape Town, South Africa. FAU - Morrow, Carl AU - Morrow C AD - The Desmond Tutu HIV Centre, University of Cape Town, South Africa. FAU - Tempelman, Hugo AU - Tempelman H AD - Ndlovu Care Group, Elandsdoorn, South Africa. FAU - Hamers, Raph L AU - Hamers RL AD - Academic Medical Center of the University of Amsterdam, Amsterdam, the Netherlands. FAU - Reiss, Peter AU - Reiss P AD - Academic Medical Center of the University of Amsterdam, Amsterdam, the Netherlands. AD - Stichting HIV Monitoring, Amsterdam, the Netherlands. FAU - van Sighem, Ard AU - van Sighem A AD - Stichting HIV Monitoring, Amsterdam, the Netherlands. FAU - Pozniak, Anton AU - Pozniak A AD - Chelsea and Westminster Hospital, London, United Kingdom. FAU - Montaner, Julio AU - Montaner J AD - BC Centre for Excellence in HIV/AIDS, Vancouver, Canada. FAU - Lane, H Clifford AU - Lane HC AD - National Institute of Allergy and Infectious Diseases, Bethesda, United States. FAU - Larder, Brendan AU - Larder B AD - The HIV Resistance Response Database Initiative (RDI), London, United Kingdom. LA - eng GR - HHSN261200800001C/RC/CCR NIH HHS/United States GR - HHSN261200800001E/CA/NCI NIH HHS/United States PT - Journal Article DEP - 20160630 PL - South Africa TA - South Afr J HIV Med JT - Southern African journal of HIV medicine JID - 100965417 PMC - PMC5843195 COIS- The authors declare that they have no financial or personal relationships that may have inappropriately influenced them in writing this article. EDAT- 2016/06/30 00:00 MHDA- 2016/06/30 00:01 PMCR- 2016/06/30 CRDT- 2018/03/24 06:00 PHST- 2015/11/12 00:00 [received] PHST- 2016/04/22 00:00 [accepted] PHST- 2018/03/24 06:00 [entrez] PHST- 2016/06/30 00:00 [pubmed] PHST- 2016/06/30 00:01 [medline] PHST- 2016/06/30 00:00 [pmc-release] AID - HIVMED-17-450 [pii] AID - 10.4102/sajhivmed.v17i1.450 [doi] PST - epublish SO - South Afr J HIV Med. 2016 Jun 30;17(1):450. doi: 10.4102/sajhivmed.v17i1.450. eCollection 2016.