Mallory Witt, MD

Investigator, The Lundquist Institute
Professor of Medicine, David Geffen School of Medicine at UCLA
Vice Chair for Inpatient Service, Department of Medicine, Harbor-UCLA Medical Center
Associate Chief, Division of HIV Medicine, Harbor-UCLA Medical Center
Director, HIV & Immunology Clinics, Harbor-UCLA Medical Center


HIV Medicine Research

Research Description

Dr. Witt is a site Principal Investigator in the Multicenter AIDS Cohort Study, following of a large cohort of HIV infected and uninfected patients for rates of acquisition of HIV, complications of HIV and its therapies including cardiovascular, metabolic, renal, CNS and hepatic diseases as well as rates and risk factors for acquisition of hepatitis B and C. As a co-investigator for the AIDS Clinical Trials Group (ACTG), Dr. Witt has contributed to national and international multicenter trials of antiretroviral therapies in HIV-infected patients and pregnant women; management of complications of HIV therapy; and the safety and efficacy of vaccines in HIV-infected patients.
Theme Groups
Research Interests


  • MD, 1985, Stanford University School of Medicine, Stanford, CA

Recent and/or Significant Publications

Falade-Nwulia O, Seaberg EC, Snider AE, et al. Incident Hepatitis B Virus Infection in HIV-Infected and HIV-Uninfected Men Who Have Sex With Men From Pre-HAART to HAART Periods: A Cohort Study. Ann Intern Med. 2015;163(9):673–680. doi:10.7326/M15-0547
Kelly SG, Plankey M, Post WS, et al. Associations between Tobacco, Alcohol, and Drug Use with Coronary Artery Plaque among HIV-Infected and Uninfected Men in the Multicenter AIDS Cohort Study. PLoS One. 2016;11(1):e0147822. Published 2016 Jan 26. doi:10.1371/journal.pone.0147822
Thomas GP, Li X, Post WS, et al. Associations between antiretroviral use and subclinical coronary atherosclerosis. AIDS. 2016;30(16):2477–2486. doi:10.1097/QAD.0000000000001220
Jotwani V, Scherzer R, Estrella MM, Jacobson LP, Witt MD, Palella F et al. Association of HIV infection with biomarkers of kidney injury and fibrosis in the Multicenter AIDS Cohort Study. Antiviral Therapy. 2017 Jan 1;22(5):421-429.
Zhang L, Tin A, Brown TT, et al. Vitamin D Deficiency and Metabolism in HIV-Infected and HIV-Uninfected Men in the Multicenter AIDS Cohort Study. AIDS Res Hum Retroviruses. 2017;33(3):261–270. doi:10.1089/AID.2016.0144.