A
AALPHI
Adolescents and Adults Living with Perinatal HIV cohort
ACTT-EU/UK
Adaptive COVID-19 Treatment Trial in the EU & UK (ACTT-EU/UK) - A Multicenter, Adaptive, Randomised Blinded Controlled Trial of the Safety and Efficacy of Investigational Therapeutics for the Treatment of COVID-19 in Hospitalised Adults
Add-Aspirin
A phase III double-blind, placebo-controlled, randomised trial assessing the effects of aspirin on disease recurrence and survival after primary therapy in common non-metastatic solid tumours
ANYSNAKES
Advancing Management of Systemic Envenoming by testing multiple Antivenoms
ARCHERY
A prospective observational study of artificial intelligence based radiotherapy treatment planning for cervical, head and neck and prostate cancer
ARREST
Adjunctive Rifampicin to Reduce Early mortality from STaphylococcus aureus bacteraemia: a multi-centre, randomised, blinded, placebo controlled trial
ARROW
Anti-retroviral research for Watoto
AXIS
A randomised trial of post-operative portal vein infusion of fluorouracil vs surgery alone for colorectal cancer, and of peri-operative radiotherapy vs no radiotherapy for rectal cancer