HIV treatment: Difference between revisions

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* Only delay treatment in cryptococcal meningitis
* Only delay treatment in cryptococcal meningitis


= Starting treatment =
= Starting Treatment =


* Arrange their [first clinic visit](HIV first clinic visit.md), and do the appropriate investigations
* Arrange their [[First clinic visit for HIV|first clinic visit]], and do the appropriate investigations
* Choose an appropriate [single-tablet regimens](Single-tablet regimens.md), and start
* Choose an appropriate [[Single-tablet regimens for HIV|single-tablet regimens]], and start
** Preference for regimen that includes integrase inhibitor
** Preference for regimen that includes integrase inhibitor
* Book follow-up
* Book follow-up

Revision as of 23:45, 14 August 2019

When to start

  • Start in all viremic patients regardless of CD4 count and in all patients with declining CD4 regardless of viremia
  • Start as soon as possible in patients with acute HIV, as it decreases the HIV reservoir
    • Less loss-to-follow-up, time-to-virologic-suppression decreased
    • Rapid linkage to care within 5 working days of diagnosis
  • Do not stop treatment
  • Unclear whether treatment needed for elite controllers
  • Only delay treatment in cryptococcal meningitis

Starting Treatment

Antiretroviral therapy (ART) regimens

  • Two nucleoside reverse-transcriptase inhibitors (NRTIs) and one non-NRTI (usually an integrase inhibitor)
  • Preference for [HIV single-tablet regimens](Single-tablet regimens.md), which improve adherence

Special populations

Pregnancy

  • Treat!
  • NRTI backbone: abacavir/lamivudine, tenofovir/emtricitabine, or tenofovir/lamivudine
  • 3rd agent
    • Protease inhibitor: ATV/r or DRV/r
    • Raltegravir
  • Avoid dolutegravir, may cause neural tube defects when on it at the time of conception (but not if started during pregnancy)

Hepatitis B coinfection

  • Prefer ART containing tenofovir, lamivudine or emtricitabine, and a third agent
    • Tenofovir/lamivudine + other
    • Tenofovir/emtricitabine + other

Hepatitis C coinfection

  • Treat both concurrently, no need to delay
  • Beware significant interactions with HCV medications

Tuberculosis

  • Probably don't need to wait to treat
  • Avoid TAF if using rifampin/rifamycin
  • If using rifampin
    • EFV okay
    • RAL needs dose increase to 800 mg BID
    • DTG at 50 mg BID only without selected INSTI mutations
  • If using PI, rifabutin can be used instead of rifampin

Cryptococcal meningitis

  • Delay treatment for risk of IRIS

Switching regimens

  • May be indicated to simplify regimens (single-pill), interactions, tolerability, comorbidities, pregnancy, or cost
  • Goal is to maintain viral suppression to avoid resistance
  • Consider:
    • Previous exposure to ART
    • Previous pattersn of resistance
    • Likelihood of adherence
    • Drug-drug and drug-food interactions
    • Comorbidities
  • Can switch within- or between-class
    • Within-class
      • EFV to RPV
      • RAL to EVG or DTG
      • DTG to BIC
      • TDF or ABC to TAF
    • Between-class
      • Boosted PI to RPV
      • Boosted PI to EVG, DTG, or BIC
      • NNRTI to EVG or DTG
  • TDF to TAF may see an increase in cholesterol

Side effects

References

  1. ^   Initiation of Antiretroviral Therapy in Early Asymptomatic HIV Infection. New England Journal of Medicine. 2015;373(9):795-807. doi:10.1056/nejmoa1506816.
  2. ^   A Trial of Early Antiretrovirals and Isoniazid Preventive Therapy in Africa. New England Journal of Medicine. 2015;373(9):808-822. doi:10.1056/nejmoa1507198.