Evaluation of the effectiveness of remdesivir in treating severe COVID-19 using data from the ISARIC WHO Clinical Characterisation Protocol UK: a prospective, national cohort study

Arch et al., medRxiv, doi:10.1101/2021.06.18.21259072

Jun 2021

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Prospective PSM analysis of remdesivir use in the UK showing statistically significantly lower mortality at 28 days. For unspecified reasons, the study prioritized short-term outcomes. Mortality at 14 days was also lower but not statistically significant. Confounding by indication is likely and may only be partially addressed by the variables included in the PSM.

Gérard, Zhou, Wu, Kamo, Choi, Kim show significantly increased risk of acute kidney injury with remdesivir.

Remdesivir efficacy disappears with longer followup. Mixed-effects meta-regression of efficacy as a function of followup duration across all remdesivir studies shows decreasing efficacy with longer followup7. This may reflect antiviral efficacy being offset by serious adverse effects of treatment.

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risk of death, 19.9% lower, RR 0.80, p = 0.03, treatment 203 of 1,491 (13.6%), control 777 of 4,676 (16.6%), NNT 33, odds ratio converted to relative risk, PSM, day 28.

risk of death, 18.0% lower, RR 0.82, p = 0.12, treatment 140 of 1,502 (9.3%), control 565 of 4,728 (12.0%), NNT 38, odds ratio converted to relative risk, PSM, day 14.

risk of mechanical ventilation, 68.0% higher, RR 1.68, p = 0.003, treatment 106 of 1,498 (7.1%), control 153 of 4,602 (3.3%), odds ratio converted to relative risk, PSM, day 28.

Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates

1. Gérard et al., Remdesivir and Acute Renal Failure: A Potential Safety Signal From Disproportionality Analysis of the WHO Safety Database, Clinical Pharmacology & Therapeutics, doi:10.1002/cpt.2145.wiley.com, doi.org.

2. Zhou et al., Acute Kidney Injury and Drugs Prescribed for COVID-19 in Diabetes Patients: A Real-World Disproportionality Analysis, Frontiers in Pharmacology, doi:10.3389/fphar.2022.833679.frontiersin.org, doi.org.

3. Wu et al., Acute Kidney Injury Associated With Remdesivir: A Comprehensive Pharmacovigilance Analysis of COVID-19 Reports in FAERS, Frontiers in Pharmacology, doi:10.3389/fphar.2022.692828.frontiersin.org, doi.org.

4. Kamo et al., Association of Antiviral Drugs for the Treatment of COVID-19 With Acute Renal Failure, In Vivo, doi:10.21873/invivo.13637.iiarjournals.org, doi.org.

5. Choi et al., Comparative effectiveness of combination therapy with nirmatrelvir–ritonavir and remdesivir versus monotherapy with remdesivir or nirmatrelvir–ritonavir in patients hospitalised with COVID-19: a target trial emulation study, The Lancet Infectious Diseases, doi:10.1016/S1473-3099(24)00353-0.sciencedirect.com, doi.org.

6. Kim et al., Investigating the Safety Profile of Fast‐Track COVID‐19 Drugs Using the FDA Adverse Event Reporting System Database: A Comparative Observational Study, Pharmacoepidemiology and Drug Safety, doi:10.1002/pds.70043.wiley.com, doi.org.

7. c19early.org, c19early.org/smeta.html.c19early.org/smeta.html.

Arch et al., 21 Jun 2021, prospective, propensity score matching, United Kingdom, preprint, 10 authors, average treatment delay 6.0 days.

This Paper Remdesivir All

Abstract: medRxiv preprint doi: https://doi.org/10.1101/2021.06.18.21259072; this version posted June 21, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted medRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license . Evaluation of the effectiveness of remdesivir in treating severe COVID-19 using data from the ISARIC WHO Clinical Characterisation Protocol UK: a prospective, national cohort study. Short Running title: ISARIC4C Remdesivir effectiveness study Authors Arch BN1, Kovacs D2*, Scott JT3*, Jones AP1, Harrison EM4, Rosala-Hallas A1, Gamble CG1, Openshaw PJM 5, Baillie JK6, Semple MG7,8 on behalf of ISARIC4C Investigators *Joint 2nd authors Affiliations 1. Liverpool Clinical Trials Centre, Clinical Directorate, Faculty of Health and Life Sciences, University of Liverpool, UK. 2. Institute of Biodiversity, Animal health and Comparative Medicine, University of Glasgow, Glasgow, UK 3. MRC-University of Glasgow Centre for Virus Research, Glasgow, UK 4. Centre for Medical Informatics, The Usher Institute, University of Edinburgh, Edinburgh, UK 5. National Heart and Lung Institute, Imperial College London, London, UK 6. Roslin Institute, University of Edinburgh, Edinburgh, UK 7. Health Protection Research Unit in Emerging and Zoonotic Infections, Institute of Infection, Veterinary and Ecological Sciences, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, UK. 8. Department of Respiratory Medicine, Alder Hey Children’s Hospital, Liverpool, UK. Corresponding author Barbara Arch. Liverpool Clinical Trials Centre, University of Liverpool, Institute in the Park, Alder Hey Childrens Hospital, Eaton Road, Liverpool, L12 2AP. Email: barbara.arch@liverpool.ac.uk, Tel: +44(0)151 795 8751 Word Count Abstract 267/300 Manuscript (excluding Research in Context Panel) 3,579/3,500 NOTE: This preprint reports new research that has not been certified by peer review and should not be used to guide clinical practice. Page 1 of 22 medRxiv preprint doi: https://doi.org/10.1101/2021.06.18.21259072; this version posted June 21, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted medRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license . Abstract Background Remdesivir was given UK early-access approval for use in COVID-19 in people aged 12 years and older on 26th May 2020 on the basis of unmet clinical need. Evidence on the side effects, complications of therapy and effectiveness of this therapy is lacking or conflicting. Methods Adults with severe COVID-19 treated with remdesivir were compared with propensity-score matched controls, identified from the ISARIC WHO Clinical Characterisation Protocol study of UK hospitalised patients with COVID-19. Remdesivir patients were matched to controls according to baseline underlying 14-day mortality risk. The effect of remdesivir on short-term outcomes was investigated (primary outcome: 14-day mortality). Effect sizes were estimated and adjusted for potential confounders using multivariable modelling. Results 1,549 patients given remdesivir and 4,964 matched controls were identified satisfying inclusion and exclusion criteria. The balance diagnostic threshold was achieved. Patients had symptoms for a median of 6 days prior to..

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Patients treated with remdesivir within 24h of ' 'hospitalisation were compared with propensity-score matched controls; estimates of ' 'effectiveness were calculated for short-term outcomes (14-day mortality, 28-day mortality, ' 'time-to-recovery among others) using multivariable ' 'modelling.Results9,278 out of ' '39,330 patients satisfied eligibility criteria. 1,549 patients were identified as ‘treated’ ' 'and matched with 4,964 controls. Patients were 62% male, mean (SD) age 63.1 (15.6) years, 80% ' '‘White’ ethnicity, and symptomatic for a median of 6 days prior to baseline. There was no ' 'statistically significant benefit of remdesivir at 14 days in terms of mortality or clinical ' 'status; there were signals of effectiveness in time-to-recovery after day 9, and a reduction ' 'in 28-day ' 'mortality.ConclusionIn a ' 'real-world setting, initiation of remdesivir within 24h of hospitalisation in conjunction ' 'with standard of care was not associated with a benefit at 14 days but supports clinical ' 'trial evidence of a potential reduction in 28-day mortality.', 'DOI': '10.1101/2021.06.18.21259072', 'type': 'posted-content', 'created': {'date-parts': [[2021, 6, 21]], 'date-time': '2021-06-21T13:50:14Z', 'timestamp': 1624283414000}, 'source': 'Crossref', 'is-referenced-by-count': 8, 'title': 'Evaluation of the effectiveness of remdesivir in severe COVID-19 using observational data from a ' 'prospective national cohort study', 'prefix': '10.1101', 'author': [ { 'ORCID': 'http://orcid.org/0000-0001-6060-8091', 'authenticated-orcid': False, 'given': 'B N', 'family': 'Arch', 'sequence': 'first', 'affiliation': []}, { 'ORCID': 'http://orcid.org/0000-0002-2187-743X', 'authenticated-orcid': False, 'given': 'D', 'family': 'Kovacs', 'sequence': 'additional', 'affiliation': []}, { 'ORCID': 'http://orcid.org/0000-0001-8030-5223', 'authenticated-orcid': False, 'given': 'J T', 'family': 'Scott', 'sequence': 'additional', 'affiliation': []}, { 'ORCID': 'http://orcid.org/0000-0001-5253-730X', 'authenticated-orcid': False, 'given': 'A P', 'family': 'Jones', 'sequence': 'additional', 'affiliation': []}, { 'ORCID': 'http://orcid.org/0000-0002-5018-3066', 'authenticated-orcid': False, 'given': 'E M', 'family': 'Harrison', 'sequence': 'additional', 'affiliation': []}, { 'ORCID': 'http://orcid.org/0000-0001-8012-9995', 'authenticated-orcid': False, 'given': 'A', 'family': 'Rosala-Hallas', 'sequence': 'additional', 'affiliation': []}, { 'ORCID': 'http://orcid.org/0000-0002-3021-1955', 'authenticated-orcid': False, 'given': 'C G', 'family': 'Gamble', 'sequence': 'additional', 'affiliation': []}, { 'ORCID': 'http://orcid.org/0000-0002-7220-2555', 'authenticated-orcid': False, 'given': 'P J M', 'family': 'Openshaw', 'sequence': 'additional', 'affiliation': []}, { 'ORCID': 'http://orcid.org/0000-0001-5258-793X', 'authenticated-orcid': False, 'given': 'J K', 'family': 'Baillie', 'sequence': 'additional', 'affiliation': []}, { 'ORCID': 'http://orcid.org/0000-0001-9700-0418', 'authenticated-orcid': False, 'given': 'M G', 'family': 'Semple', 'sequence': 'additional', 'affiliation': []}], 'member': '246', 'reference': [ { 'key': '2022031108150491000_2021.06.18.21259072v2.1', 'unstructured': 'NICE. 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Late treatment
is less effective

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