Hepatotoxicity is a topic covered in the Johns Hopkins HIV Guide.

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  • Distinct mechanisms of ART-related hepatotoxicity (also known as drug-induced liver injury):
    • Idiosyncratic reactions and dose-dependent cytotoxicity: most common cause; most ART agents, NRTI, NNRTI, PI (may be dose dependent). Order of risk: ddI>d4T>AZT>ABC>3TC, FTC, TDF (TDF, 3TC, FTC, have minimal liver toxicity);NVP>>EFV=ETR>RPV; TPV>> other PIs (all others similar, including DRV, NFV may be lower);RAL and EVG+COBI have less hepatotoxicity than other agents, including EFV; however hepatoxocity is more common during pregnancy and has been reported with RAL.
    • Hypersensitivity reaction: early NVP and ABC (ABC hepatotoxicity can occur in absence of ABC hypersensitivity reaction and among HLAB*5701 -negative pts)
    • Mitochondrial toxicity & lactic acidosis: NRTIs; esp. d4T, ddI, AZT (risk factors: female, higher BMI)
    • Immune reconstitution inflammatory syndrome (IRIS): all agents during CD4 increase
  • General risk factors: HBV and/or HCV co-infection (esp. genotype 3) (increase risk from 2-5% to 10-25%), older age, previous hepatotoxicity, alcohol use, cirrhosis, obesity, substance abuse, baseline abnormal transaminases, other hepatotoxic medications (eg: anti-tuberculosis therapy). Note: sustained virologic response on HCV therapy decreases HCV-associated risk.
  • NVP hypersensitivity risk factors: female sex and higher CD4 (>250 for women, >400 for men) at time of ART initiation
  • ABC hypersensitivity risk factor: HLA B*5701 haplotype
  • ddI non-cirrhotic portal hypertension
  • Consider non-ART agents: TMP-SMX, amoxicillin-clavulanate, statins, etc. (see http://livertox.nlm.nih.gov… for searchable database on durg induced liver injury)

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Last updated: July 31, 2016