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Latency reversal and reservoir clearance

The ‘shock and kill’ family of strategies tries to expose latent proviruses and then remove infected cells. Research has increasingly shifted toward combination designs because latency reversal alone has not reliably reduced the intact reservoir.

Publisher
The Bach Foundation
Audience
Public · Professional · Research
Last reviewed
18 August 2026
Status
Source-linked
Jurisdiction
Global context; local guidance may vary

Direction at a glance

The ‘shock and kill’ family of strategies tries to expose latent proviruses and then remove infected cells. Research has increasingly shifted toward combination designs because latency reversal alone has not reliably reduced the intact reservoir.
Clinical researchCure and remissionMechanistic and early combination studies

What the evidence establishes

  • The reservoir is biologically heterogeneous across cells and tissues.
  • Viral transcription can be induced without eliminating the cell that contains the provirus.
  • Reservoir assays must distinguish defective proviruses from replication-competent virus.

Next decisive research questions

01Which agents reach deep tissue reservoirs without unacceptable inflammation?
02What immune effector can remove reactivated cells?
03Which assays demonstrate a clinically meaningful reservoir reduction?
04Can interventions be targeted to clonally expanded reservoir cells?

Limits and responsible interpretation

What this direction does not yet prove

A change in one reservoir assay does not prove remission. Toxicity, tissue penetration and incomplete immune clearance remain central barriers.

Development pathway

How this direction should be evaluated
DecisionRequired evidence
Biological activityTarget engagement and an outcome that cannot be explained by assay noise or selection.
Clinical valueMeaningful benefit, adequate follow-up, safety, comparison with current standard care and transparent uncertainty.
GeneralizabilityDiverse populations, subtypes, geographies, ages and clinically relevant comorbidities.
ScalabilityManufacturing, delivery, monitoring, price, workforce and community acceptability.
Additional permanent evidence gateways