PMID- 37055207 OWN - NLM STAT- MEDLINE DCOM- 20230417 LR - 20230423 IS - 2044-6055 (Electronic) IS - 2044-6055 (Linking) VI - 13 IP - 4 DP - 2023 Apr 13 TI - Leflunomide treatment for patients hospitalised with COVID-19: DEFEAT-COVID randomised controlled trial. PG - e068179 LID - 10.1136/bmjopen-2022-068179 [doi] LID - e068179 AB - OBJECTIVE: To evaluate the clinical efficacy and safety of leflunomide (L) added to the standard-of-care (SOC) treatment in COVID-19 patients hospitalised with moderate/critical clinical symptoms. DESIGN: Prospective, open-label, multicentre, stratified, randomised clinical trial. SETTING: Five hospitals in UK and India, from September 2020 to May 2021. PARTICIPANTS: Adults with PCR confirmed COVID-19 infection with moderate/critical symptoms within 15 days of onset. INTERVENTION: Leflunomide 100 mg/day (3 days) followed by 10-20 mg/day (7 days) added to standard care. PRIMARY OUTCOMES: The time to clinical improvement (TTCI) defined as two-point reduction on a clinical status scale or live discharge prior to 28 days; safety profile measured by the incidence of adverse events (AEs) within 28 days. RESULTS: Eligible patients (n=214; age 56.3+/-14.9 years; 33% female) were randomised to SOC+L (n=104) and SOC group (n=110), stratified according to their clinical risk profile. TTCI was 7 vs 8 days in SOC+L vs SOC group (HR 1.317; 95% CI 0.980 to 1.768; p=0.070). Incidence of serious AEs was similar between the groups and none was attributed to leflunomide. In sensitivity analyses, excluding 10 patients not fulfilling the inclusion criteria and 3 who withdrew consent before leflunomide treatment, TTCI was 7 vs 8 days (HR 1.416, 95% CI 1.041 to 1.935; p=0.028), indicating a trend in favour of the intervention group. All-cause mortality rate was similar between groups, 9/104 vs 10/110. Duration of oxygen dependence was shorter in the SOC+L group being a median 6 days (IQR 4-8) compared with 7 days (IQR 5-10) in SOC group (p=0.047). CONCLUSION: Leflunomide, added to the SOC treatment for COVID-19, was safe and well tolerated but had no major impact on clinical outcomes. It may shorten the time of oxygen dependence by 1 day and thereby improve TTCI/hospital discharge in moderately affected COVID-19 patients. TRIAL REGISTRATION NUMBERS: EudraCT Number: 2020-002952-18, NCT05007678. CI - (c) Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. FAU - Kralj-Hans, Ines AU - Kralj-Hans I AUID- ORCID: 0000-0001-7401-6281 AD - Ashford and Saint Peter's Hospitals NHS Trust, Chertsey, UK i.kralj-hans@nhs.net. FAU - Li, Kuo AU - Li K AD - Imperial College, London, UK. FAU - Wesek, Adrian AU - Wesek A AD - Imperial College, London, UK. FAU - Lamorgese, Alexia AU - Lamorgese A AD - JB Medical Ltd, Sudbury, UK. FAU - Omar, Fatima AU - Omar F AD - Ashford and Saint Peter's Hospitals NHS Trust, Chertsey, UK. FAU - Ranasinghe, Kapila AU - Ranasinghe K AD - Ashford and Saint Peter's Hospitals NHS Trust, Chertsey, UK. FAU - McGee, Megan AU - McGee M AD - Ashford and Saint Peter's Hospitals NHS Trust, Chertsey, UK. FAU - Brack, Kieran AU - Brack K AD - Ashford and Saint Peter's Hospitals NHS Trust, Chertsey, UK. FAU - Li, Shiliang AU - Li S AD - East China University of Science and Technology, Shanghai, China. FAU - Aggarwal, Ritesh AU - Aggarwal R AD - Max Hospital, Delhi, India. FAU - Bulle, Ajay AU - Bulle A AD - Meditrina Institute of Medical Science, Nagpur, India. FAU - Kodre, Aparna AU - Kodre A AD - Noble Hospital, Pune, India. FAU - Sharma, Shashank AU - Sharma S AD - St Peters Hospital Emergency Department, Ashford and Saint Peter's Hospitals NHS Trust, Chertsey, UK. FAU - Fluck, David AU - Fluck D AD - Cardiology, Ashford and Saint Peter's Hospitals NHS Trust, Chertsey, UK. FAU - John, Isaac AU - John I AD - Ashford and Saint Peter's Hospitals NHS Trust, Chertsey, UK. FAU - Sharma, Pankaj AU - Sharma P AD - Royal Holloway University of London, Egham, UK. FAU - Belsey, Jonathan D AU - Belsey JD AD - JB Medical Ltd, Sudbury, UK. FAU - Li, Ling AU - Li L AUID- ORCID: 0000-0002-4026-0216 AD - Department of Engineering, City University, London, UK. FAU - Seshasai, Sreenivasa Rao Kondapally AU - Seshasai SRK AD - St George's University Hospitals NHS Foundation Trust, London, UK. FAU - Li, Hong Lin AU - Li HL AD - Shanghai Key Laboratory of New Drug Design, Shanghai, China. FAU - Marczin, Nandor AU - Marczin N AD - Imperial College, London, UK. FAU - Chen, Zhong AU - Chen Z AD - Ashford and Saint Peter's Hospitals NHS Trust, Chertsey, UK. CN - DEFEAT-COVID Investigators LA - eng SI - ClinicalTrials.gov/NCT05007678 PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20230413 PL - England TA - BMJ Open JT - BMJ open JID - 101552874 RN - G162GK9U4W (Leflunomide) RN - ICJ93X8X90 (canertinib dihydrochloride) RN - S88TT14065 (Oxygen) SB - IM MH - Adult MH - Humans MH - Female MH - Middle Aged MH - Aged MH - Male MH - *COVID-19 MH - Leflunomide/therapeutic use MH - SARS-CoV-2 MH - Prospective Studies MH - Treatment Outcome MH - Oxygen PMC - PMC10105917 OTO - NOTNLM OT - COVID-19 OT - INFECTIOUS DISEASES OT - Respiratory infections COIS- Competing interests: None declared. FIR - Sharma, Shashank IR - Sharma S FIR - McGee, Megan IR - McGee M FIR - Brack, Kieran IR - Brack K FIR - Aquino, Maia IR - Aquino M FIR - Pereira, Rita IR - Pereira R FIR - Frost, Vicky IR - Frost V FIR - Gibson, Kirsty IR - Gibson K FIR - Croft, Maria IR - Croft M FIR - Omar, Fatima IR - Omar F FIR - Ranasinghe, Kapila IR - Ranasinghe K FIR - Mahendran, Siva IR - Mahendran S FIR - Joseph, Anna IR - Joseph A FIR - Grout, Maggie IR - Grout M FIR - Dewan, Arun IR - Dewan A FIR - Aggarwal, Ritesh IR - Aggarwal R FIR - Bulle, Ajay IR - Bulle A FIR - Kodre, Aparna IR - Kodre A EDAT- 2023/04/14 06:00 MHDA- 2023/04/17 06:41 PMCR- 2023/04/13 CRDT- 2023/04/13 21:42 PHST- 2023/04/17 06:41 [medline] PHST- 2023/04/13 21:42 [entrez] PHST- 2023/04/14 06:00 [pubmed] PHST- 2023/04/13 00:00 [pmc-release] AID - bmjopen-2022-068179 [pii] AID - 10.1136/bmjopen-2022-068179 [doi] PST - epublish SO - BMJ Open. 2023 Apr 13;13(4):e068179. doi: 10.1136/bmjopen-2022-068179.