HIV Medication Adherence Efficacy Review: Efficacy Criteria

Medication Adherence

Efficacy criteria are used to determine if an HIV Medication Adherence (MA) intervention is evidence-based, that is, if there is strong or sufficient evidence that:

  • The intervention improves adherence to HIV antiretroviral medication or
  • Reduces HIV viral load

Efficacy criteria:

  • Quality of study design
  • Quality of study implementation and analysis
  • Strength of evidence of efficacy

Based on the overall quality of the study, evidence-based interventions (EBIs) are classified as either best-evidence or good-evidence.

Evidence-Based Interventions (EBIs)

Best Evidence

  • Clear description of key aspects
  • Prospective study design
  • Appropriate and concurrent comparison arm
  • Random allocation to study arms

Best-evidence medication HIV interventions for persons with HIV (PWH)

  • Show significant effects in improving medication adherence behaviors AND
  • Show significant effects in reducing HIV viral load

These interventions are rigorously evaluated and provide the strongest evidence of efficacy.

PRS MA Best Criteria pdf icon[PDF – 200 KB]

Evidence-Based Interventions (EBIs)

Good Evidence

  • Clear description of key aspects
  • At least a quasi-prospective study design
  • Appropriate or non-concurrent comparison arm
  • At least a non-random allocation

Good evidence medication adherence HIV interventions for persons with HIV (PWH)

  • Show significant effects in improving medication adherence OR
  • Show significant effects in reducing HIV viral load

These interventions are scientifically sound and provide sufficient evidence of efficacy.

PRS MA Good Criteria pdf icon[PDF – 196 KB]

Additional Resources