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Hydroxychloroquine + lopinavir/ritonavir

UMC Utrecht · Phase 3 active Small molecule

This combination uses hydroxychloroquine to modulate immune response and autophagy while lopinavir/ritonavir inhibits viral protease to reduce viral replication.

This combination uses hydroxychloroquine to modulate immune response and autophagy while lopinavir/ritonavir inhibits viral protease to reduce viral replication. Used for COVID-19 (investigational, Phase 3).

At a glance

Generic nameHydroxychloroquine + lopinavir/ritonavir
SponsorUMC Utrecht
Drug classCombination antiviral and immunomodulator
TargetViral protease (lopinavir/ritonavir); endosomal pH and autophagy pathways (hydroxychloroquine)
ModalitySmall molecule
Therapeutic areaInfectious Disease / Virology
PhasePhase 3

Mechanism of action

Hydroxychloroquine is an antimalarial agent that increases endosomal pH and interferes with viral entry and immune signaling pathways. Lopinavir/ritonavir is a protease inhibitor combination that blocks HIV and coronavirus protease enzymes, preventing viral polyprotein processing and replication. Together, they were investigated for synergistic antiviral and immunomodulatory effects, particularly in viral infections.

Approved indications

Common side effects

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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