- Target disease: Paediatric HIV
- Main partners (since project start): Department of Health and Department of Science and Technology, South Africa; Stellenbosch University and Tygerberg Children’s Hospital, South Africa; Perinatal HIV Research Unit, University of Witswatersrand, South Africa; Shandukani Research Centre, Wits Reproductive Health and HIV Institute, South Africa; Empilweni Services and Research Unit, Rahima Moosa Mother and Child Hospital, South Africa; Enhancing Care Foundation, South Africa; Division of Clinical Pharmacology, Department of Medecine, University of Cape Town, South Africa.
- Project Start: 2012
- Funding (since project start): French Development Agency (AFD), France; Médecins Sans Frontières/Doctors without Borders, International/Norway; Spanish Agency for International Development Cooperation (AECID), Spain; Swiss Agency for Development and Cooperation (SDC), Switzerland; UBS Optimus Foundation, Switzerland; UNITAID, Switzerland.
In Africa, a large proportion of HIV-positive infants and children are co-infected with tuberculosis (TB). Rifampicin is commonly used to treat TB in children, however it has negative interactions with protease inhibitors (PIs) included in treatments used to combat HIV infection: concomitant administration of rifampicin leads to a decrease in LPV/r exposure of up to 90%. To counteract this effect, the amount of ritonavir (RTV) in the LPV/r combination must be quadrupled in a procedure known as super-boosting. A stand-alone RTV booster formulation is needed that can be added to any PI-based paediatric ARV regimen. Like LPV/r, RTV has a high alcohol content, is unstable, and completely unpalatable.
A pharmacokinetic study has been carried out in infants and young children co-infected with TB and HIV at five sites in South Africa to supplement existing information and evaluate the effect of the ‘super-boosting’ strategy.
The pharmacokinetic study has been completed and final results were presented in 2017, showing that super-boosting is safe and effective.
Last update: March 2018