Guidance for the Interpretation of Long-Acting Cabotegravir and Rilpivirine Concentrations Based on Real-World Therapeutic Drug Monitoring Data and Documented Failures

The interpretation of long-acting cabotegravir and rilpivirine concentrations is complicated by the lack of consensus on the threshold to consider. Building on real-world therapeutic drug monitoring data and documented virologic failures, this article provides a reappraisal of the existing thresholds and guidance for the interpretation of cabotegravir and rilpivirine concentrations. There is no established threshold for the interpretation of long-acting cabotegravir/rilpivirine concentrations. Building on real-world TDM data and documented virologic failures, this article provides a reappraisal of the existing thresholds, and guidance for the interpretation of cabotegravir and rilpivirine concentrations.