Lopinavir/ritonavir for COVID-19
17 studies with >15,000 patients
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Lopinavir/ritonavir
Lopinavir/r..
Serious Outcome Risk
No significant improvements are seen in meta analysis to date.
COVID-19 Lopinavir/ritonavir studies. Dec 2025. c19early.org
0 0.5 1 1.5+ All studies -11% With exclusions -8% Mortality -4% Hospitalization -9% Recovery -18% Cases 40% Viral clearance -2% RCTs -6% RCT mortality -6% Prophylaxis -630% Early -97% Late -2% Favorslopinavir/ritonavir Favorscontrol
Recent:
Yan
Huang
Wen
Pan.
Dec 1
Covid Analysis Lopinavir/ritonavir for COVID-19: real-time meta analysis of 17 studies
Meta analysis using the most serious outcome reported shows 11% [-4‑28%] higher risk, without reaching statistical significance. Control Lopinavir/ritonavirLopinavir/r.. All data and sources to reproduce this analysis are in th..
Sep 2
Horby et al., medRxiv, doi:10.1101/2025.08.29.25334732 Long-term follow-up of treatment comparisons in RECOVERY: a randomised, open-label, platform trial for patients hospitalised with COVID-19
6-month followup of RECOVERY patients. Results are reported within the respective trials for each treatment.
Aug 13
2024
Azimi Pirsaraei et al., Cureus, doi:10.7759/cureus.66798 Anticoagulant Use in COVID-19 Patients: A Longitudinal Study From Zanjan, Iran
163% higher mortality (p<0.0001). Retrospective 831 hospitalized COVID-19 patients showing higher mortality with lopinavir/ritonavir treatment in unadjusted results.
Jul 30
2024
Değirmenci et al., Journal of Controversies in Obstetrics & Gynecology and Pediatrics, doi:10.51271/JCOGP-0035 Is vitamin D level important in pregnant women with COVID-19?
136% higher hospitalization (p=0.43). Retrospective 125 pregnant women hospitalized with COVID-19 in Turkey, showing no significant difference in hospitalization length with HCQ, and longer hospitalization with lopinavir/ritonavir use.
Mar 31
2023
Kaizer et al., International Journal of Infectious Diseases, doi:10.1016/j.ijid.2022.12.028 Lopinavir/ritonavir for treatment of non-hospitalized patients with COVID-19: a randomized clinical trial
203% higher mortality (p=0.49), 20% higher hospitalization (p=0.78), and 3% worse recovery (p=0.88). RCT 437 non-hospitalized COVID-19 patients showing no significant differences with lopinavir/ritonavir (LPV/r) treatment.
Apr 16
2022
Wong et al., Pediatric Drugs, doi:10.1007/s40272-022-00500-7 Slower Recovery with Early Lopinavir/Ritonavir use in Pediatric COVID-19 Patients: A Retrospective Observational Study
96% lower hospital discharge (p<0.0001) and 96% worse recovery (p<0.0001). Retrospective 933 pediatric COVID-19 patients in Hong Kong showing worse outcomes with early lopinavir/ritonavir (LPV/r) use.
Feb 15
2022
Lowe et al., PLOS Medicine, doi:10.1371/journal.pmed.1004120 (date from preprint) Favipiravir, lopinavir-ritonavir, or combination therapy (FLARE): A randomised, double-blind, 2 × 2 factorial placebo-controlled trial of early antiviral therapy in COVID-19
200% higher hospitalization (p=1) and 7% improved viral clearance (p=0.56). 240 patient RCT comparing favipiravir, favipiravir + LPV/r, LPV/r, and placebo, showing improved viral clearance with favipiravir, but no significant difference for LPV/r. Efficacy was lower in the combined favipiravir + LPV/r arm, where ..
Dec 31
2021
Labhardt et al., eClinicalMedicine, doi:10.1016/j.eclinm.2021.101188 Post-exposure Lopinavir-Ritonavir Prophylaxis versus Surveillance for Individuals Exposed to SARS-CoV-2: The COPEP Pragmatic Open-Label, Cluster Randomized Trial
630% higher progression (p=0.02) and 40% fewer symptomatic cases (p=0.17). Open-label, cluster-randomized RCT 318 asymptomatic close contacts in Switzerland and Brazil showing no statistically significant difference in symptomatic COVID-19 at 21 days with LPV/r prophylaxis. The mid-trial changes in allocation an..
Jul 12
2021
Arabi et al., Intensive Care Medicine Lopinavir-ritonavir and hydroxychloroquine for critically ill patients with COVID-19: REMAP-CAP randomized controlled trial
54% higher mortality (p=0.02). Very late stage RCT with 50 ICU patients treated with HCQ, 255 lopinavir-ritonavir patients, and 27 combined therapy patients, showing higher mortality with all treatments. Authors do not report results for patients in the moderate state,..
Jun 9
2021
Di Castelnuovo et al., Frontiers in Medicine, doi:10.3389/fmed.2021.639970 Lopinavir/Ritonavir and Darunavir/Cobicistat in Hospitalized COVID-19 Patients: Findings From the Multicenter Italian CORIST Study
6% lower mortality (p=0.52). Retrospective 3,451 hospitalized COVID-19 patients in Italy showing higher mortality with darunavir/cobicistat.
Apr 28
2021
Kokturk et al., Respiratory Medicine, doi:10.1016/j.rmed.2021.106433 The predictors of COVID-19 mortality in a nationwide cohort of Turkish patients
118% higher mortality (p=0.38). Retrospective 1,500 hospitalized late stage (median SaO2 87.7) patients in Turkey, showing no significant difference in mortality with treatment.
Apr 22
2021
Reis et al., JAMA Network Open, doi:10.1001/jamanetworkopen.2021.6468 Effect of Early Treatment With Hydroxychloroquine or Lopinavir and Ritonavir on Risk of Hospitalization Among Patients With COVID-19 The TOGETHER Randomized Clinical Trial
86% higher mortality (p=1) and 16% higher hospitalization (p=0.72). Early terminated RCT in Brazil showing no significant differences with lopinavir/ritonavir treatment.
Dec 31
2020
Li et al., Med, doi:10.1016/j.medj.2020.04.001 Efficacy and Safety of Lopinavir/Ritonavir or Arbidol in Adult Patients with Mild/Moderate COVID-19: An Exploratory Randomized Controlled Trial
100% higher progression (p=0.46) and 3% faster viral clearance (p=0.84). RCT 86 mild/moderate COVID-19 patients showing no significant difference in outcomes with lopinavir/ritonavir or arbidol compared to control.
Oct 31
2020
Horby et al., The Lancet, doi:10.1016/S0140-6736(20)32013-4 Lopinavir–ritonavir in patients admitted to hospital with COVID-19 (RECOVERY): a randomised, controlled, open-label, platform trial
7% higher mortality (p=0.24), 15% higher ventilation (p=0.15), and 2% lower hospital discharge (p=0.53). RCT 1,616 hospitalized COVID-19 patients showing no significant differences with lopinavir-ritonavir treatment compared to usual care. 6-month results are from [Horby]
Oct 20
2020
Pan et al., Biomedical Reports, doi:10.3892/br.2020.1375 Retrospective analysis of the effect of current clinical medications and clinicopathological factors on viral shedding in COVID‑19 patients
45% improved viral clearance (p=0.01). Retrospective 186 hospitalized COVID-19 patients showing faster viral clearance with lopinavir/ritonavir. There may be significant confounding by indication - authors classify cases as non-severe vs severe, but severity is not included in..
Oct 15
2020
SOLIDARITY Trial Consortium, NEJM, doi:10.1056/NEJMoa2023184 (date from preprint) Repurposed antiviral drugs for COVID-19; interim WHO SOLIDARITY trial results
no change in mortality (p=1) and 2% higher ventilation (p=0.89). WHO SOLIDARITY open-label RCT showing no significant difference in outcomes with lopinavir/ritonavir treatment.
Oct 6
2020
Ader et al., medRxiv, doi:10.1101/2022.02.16.22271064 An open-label randomized, controlled trial of the effect of lopinavir/ritonavir, lopinavir/ritonavir plus IFN-beta-1a and hydroxychloroquine in hospitalized patients with COVID-19 - Final results from the DisCoVeRy trial
36% higher mortality (p=0.39) and 26% improved viral clearance (p=0.65). Early terminated very late stage (95% on oxygen at baseline) DISCOVERY trial showing no significant differences with lopinavir/ritonavir.
Aug 1
2020
Wen et al., Zhonghua Nei Ke Za Zhi, doi:10.3760/cma.j.cn112138-20200227-00147 The efficacy and safety of lopinavir/ritonavir and arbidol in patients with coronavirus disease 2019
21% slower viral clearance (p=0.008). Retrospective 178 hospitalized COVID-19 patients in China
Jul 14
2020
Huang et al., Frontiers in Pharmacology, doi:10.3389/fphar.2020.01071 No Statistically Apparent Difference in Antiviral Effectiveness Observed Among Ribavirin Plus Interferon-Alpha, Lopinavir/Ritonavir Plus Interferon-Alpha, and Ribavirin Plus Lopinavir/Ritonavir Plus Interferon-Alpha in Patients With Mild to Moderate Coronavirus Disease 2019: Results of a Randomized, Open-Labeled Prospective Study
6% longer hospitalization (p=0.68), 33% faster recovery (p=0.32), 18% faster improvement (p=0.07), and 15% slower viral clearance (p=0.41). RCT 101 mild to moderate COVID-19 patients showing no significant difference in antiviral effectiveness among three treatment regimens: ribavirin plus interferon-alpha, lopinavir/ritonavir plus interferon-alpha, and ribavirin plus lopinav..
May 19
2020
Yan et al., European Respiratory Journal, doi:10.1183/13993003.00799-2020 Factors associated with prolonged viral shedding and impact of lopinavir/ritonavir treatment in hospitalised non-critically ill patients with SARS-CoV-2 infection
40% improved viral clearance (p=0.01). Retrospective 120 hospitalized non-critically ill COVID-19 patients showing that early administration of lopinavir/ritonavir was associated with shorter duration of SARS-CoV-2 RNA shedding.
May 7
2020
Cao et al., New England Journal of Medicine, doi:10.1056/NEJMoa2001282 A Trial of Lopinavir–Ritonavir in Adults Hospitalized with Severe Covid-19
23% lower mortality (p=0.39), 29% greater improvement (p=0.19), and 4% improved viral clearance (p=1). RCT 199 hospitalized COVID-19 patients showing no significant difference with lopinavir-ritonavir treatment. 28-day mortality was lower in the treatment group, without statistical significance. 3 treatment patients died within 24 hours af..
Mar 31
2020
Zhou et al., The Lancet, doi:10.1016/S0140-6736(20)30566-3 Clinical course and risk factors for mortality of adult inpatients with COVID-19 in Wuhan, China: a retrospective cohort study
10% slower viral clearance (p=0.06). Retrospective 191 hospitalized COVID-19 patients in China showing no significant difference in viral clearance with lopinavir/ritonavir.