Glossary

CDC – Centre for Disease Control, part of the USA health administration.

CCR5 inhibitor – type of HIV drug (an entry inhibitor) that blocks HIV from getting into a CD4 cell. CCR5 is a co-receptor on the surface of a CD4 cell that HIV uses to attach itself to the cell. CCR5 inhibitors block that process. Maraviroc is currently the only approved CCR5 inhibitor.

Drug targets in the virus life cycle.

intent-to-treat analysis (ITT) and on-treatment analysis (OT) – two important ways that trial results are analysed. ITT includes all patients who entered the study and is more rigorous. OT only calculates the response rates for people still on the randomised treatment.

PT (prothrombin time; pro-time) – PT testing measures the amount of time it takes for blood to clot. When the liver is damaged, its ability to make clotting factors is impaired. If this time increases – referred to as a prolonged PT interval – it shows that the liver is not working so well.

chorionic villus sampling – test in which cells around an embryo are removed and examined to detect genetic abnormalities.