Ali Judd, Professor of Epidemiology

Ali is a Professor of Epidemiology at UCL and has worked in HIV and hepatitis C since 1995 and with the MRC Clinical Trials Unit since 2005. Over the last 15 years she has set up and now coordinates a network of cohort studies across Eastern and Western Europe and Thailand, addressing questions in paediatric HIV and related infections. This network is the European Pregnancy and Paediatric Infections Cohort Collaboration (EPPICC), which is part of Penta. She is also a co-investigator in the International AIDS Society Collaborative Initiative for Paediatric HIV Education and Research (CIPHER) Cohort Collaboration, within which questions of global public health importance for children and young people living with HIV are addressed.

For hepatitis C, she is developing studies investigating treatment options for pregnant women with chronic HCV. Her observational studies run parallel to the paediatric and adolescent infection trials run at the MRC CTU, providing a complementary approach to addressing questions of trial feasibility as well as longer term effectiveness and safety.

Ali is a member of the Scientific Committee of the International Workshop on HIV Pediatrics, and she is a trustee of the Children’s HIV Association.


Selected publications

  1. Judd A, Melvin D, Thompson LC, Foster C, Le Prevost M, Evangeli M, Winston A, Arenas-Pinto A, Sturgeon K, Rowson K, Gibb DM, Castro H. Factors associated with non-adherence to antiretroviral therapy among young people with perinatal HIV in England. Journal of the Association of Nurses in AIDS Care, 2020; 31(5): 574-586. PMID: 32467489. DOI: 10.1097/JNC.0000000000000171
  2. European Pregnancy and Paediatric Cohort Collaboration (EPPICC) Study Group in EuroCoord, CD4 recovery following antiretroviral treatment interruptions in children and adolescents with HIV infection in Europe and Thailand. HIV Medicine, 2019; 20(7): p. 456-472. PMID: 31099155. DOI: 10.1111/hiv.12745
  3. Freriksen JJM, van Seyen M, Judd A, Gibb DM, Collins IJ, Greupink R, Russel FGM, Drenth JPH, Colbers A, Burger DM. Direct-acting antivirals for the treatment of HCV during pregnancy and lactation: implications for maternal dosing, fetal exposure, and safety for mother and child. Alimentary Pharmacology & Therapeutics 2019; 50(7): 738-750. PMID: 31448450. DOI: 10.1111/apt.15476
  4. Collaborative Initiative for Paediatric Education and Research (CIPHER) Global Cohort Collaboration. The epidemiology of adolescents living with perinatally-acquired HIV: a cross-region global cohort analysis. PLOS Medicine 2018;15(3):e1002514. PMID: 29494593. doi: 10.1371/journal.pmed.1002514
  5. European Pregnancy and Paediatric HIV Cohort Collaboration (EPPICC). Long term trends in mortality and AIDS-defining events after combination ART initiation among children and adolescents with perinatal HIV in Europe and Thailand. PLOS Medicine 2018; 15: e1002491. PMID: 29381702. DOI: 10.1371/journal.pmed.1002491





Research Interests

  • HIV in children and young people
  • ART safety and effectiveness
  • Design of observational studies
  • Cohort collaborations
  • Hepatitis C in pregnant women and children


Research Areas



Related Studies



IRIS Profile