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An open label randomized clinical trial of Indomethacin for mild and moderate hospitalised Covid-19 patients

Ravichandran et al., Scientific Reports, doi:10.1038/s41598-022-10370-1, CTRI/2021/05/033544
Apr 2022  
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Recovery -43% Improvement Relative Risk Progression -3925% Recovery time -133% Recovery time (b) -75% Recovery time (c) -75% Viral clearance -20% Acetaminophen  Ravichandran et al.  LATE TREATMENT  RCT Is late treatment with acetaminophen beneficial for COVID-19? RCT 210 patients in India Trial compares with indomethacin, results vs. placebo may differ Worse recovery (p=0.0018) and higher progression (p<0.0001) c19early.org Ravichandran et al., Scientific Reports, Apr 2022 Favorsacetaminophen Favorsindomethacin 0 0.5 1 1.5 2+
2nd treatment shown to increase risk in November 2020, now with p = 0.00000029 from 27 studies, but still recommended in 64 countries.
5,100+ studies for 109 treatments. c19early.org
RCT with 107 paracetamol and 103 indomethacin patients, showing higher progression and worse recovery with paracetamol.
Paracetamol is also known as acetaminophen, Tylenol, Panadol, Calpol, Tempra, Calprofen, Doliprane, Efferalgan, Grippostad C, Dolo, Acamol, Fevadol, Crocin, and Perfalgan.
Study covers acetaminophen and indomethacin.
risk of no recovery, 42.5% higher, RR 1.43, p = 0.002, treatment 77 of 107 (72.0%), control 52 of 103 (50.5%), day 14.
risk of progression, 3925.2% higher, RR 40.25, p < 0.001, treatment 20 of 107 (18.7%), control 0 of 103 (0.0%), continuity correction due to zero event (with reciprocal of the contrasting arm), SpO2 ≤93.
recovery time, 133.3% higher, relative time 2.33, p < 0.001, treatment median 7.0 IQR 2.75 n=107, control median 3.0 IQR 1.0 n=103, fever.
recovery time, 75.0% higher, relative time 1.75, p < 0.001, treatment median 7.0 IQR 2.0 n=107, control median 4.0 IQR 2.0 n=103, myalgia.
recovery time, 75.0% higher, relative time 1.75, p < 0.001, treatment median 7.0 IQR 3.0 n=107, control median 4.0 IQR 1.0 n=103, cough.
risk of no viral clearance, 20.1% higher, RR 1.20, p = 0.19, treatment 43 of 60 (71.7%), control 37 of 62 (59.7%), day 7.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Ravichandran et al., 19 Apr 2022, Randomized Controlled Trial, India, peer-reviewed, 8 authors, this trial compares with another treatment - results may be better when compared to placebo, trial CTRI/2021/05/033544. Contact: rkkumar@iitm.ac.in.
This PaperAcetaminophenAll
An open label randomized clinical trial of Indomethacin for mild and moderate hospitalised Covid-19 patients
Rajan Ravichandran, Surapaneni Krishna Mohan, Suresh Kumar Sukumaran, Devakumar Kamaraj, Sumetha Suga Daivasuga, Samson Oliver Abraham Samuel Ravi, Sivakumar Vijayaraghavalu, Ramarathnam Krishna Kumar
Scientific Reports, doi:10.1038/s41598-022-10370-1
Indomethacin, a non-steroidal anti-inflammatory drug (NSAID), has been presented as a broadspectrum antiviral agent. This randomised clinical trial in a hospital setting evaluated the efficacy and safety of this drug in RT-PCR-positive coronavirus disease 2019 (COVID-19) patients. A total of 210 RT-PCR-positive COVID-19 patients who provided consent were allotted to the control or case arm, based on block randomisation. The control arm received standard of care comprising paracetamol, ivermectin, and other adjuvant therapies. The patients in the case arm received indomethacin instead of paracetamol, with other medications retained. The primary endpoint was the development of hypoxia/desaturation with SpO 2 ≤ 93, while time to become afebrile and time for cough and myalgia resolution were the secondary endpoints. The results of 210 patients were available, with 103 and 107 patients in the indomethacin and paracetamol arms, respectively. We monitored patient profiles along with everyday clinical parameters. In addition, blood chemistry at the time of admission and discharge was assessed. As no one in either of the arms required high-flow oxygen, desaturation with a SpO 2 level of 93 and below was the vital goal. In the indomethacin group, none of the 103 patients developed desaturation. On the other hand, 20 of the 107 patients in the paracetamol arm developed desaturation. Patients who received indomethacin also experienced more rapid symptomatic relief than those in the paracetamol arm, with most symptoms disappearing in half the time. In addition, 56 out of 107 in the paracetamol arm had fever on the seventh day, while no patient in the indomethacin group had fever. Neither arm reported any adverse event. The fourteenth-day follow-up revealed that the paracetamol arm patients had faced several discomforts; indomethacin arm patients mostly complained only of tiredness. Indomethacin is a safe and effective drug for treating patients with mild and moderate covid-19. SARS-Cov-2, a member of the coronavirus family, has been ravaging the world for the past 18 months. Although an effective treatment has eluded the medical community, there have been several registered trials on finding new or repurposed drugs. Several studies have discussed the mechanism of the virus-host interaction and possible treatments 1 , but safe and effective treatment for the disease is yet to emerge. Drug repurposing seems to be an immediate solution, and various drugs have been suggested for the COVID-19 treatment 2,3 . The drugs required to combat the pathogen may fall into one or more of the following categories: antivirals, anti-inflammatory agents, and supportive therapies 4,5 . According to V'Kovski 1 the antiviral action can be based
www.nature.com/scientificreports/ group was seven days. The median days for the resolution of cough and myalgia for the indomethacin group was four days, while it was seven days for the paracetamol group. We did not observe any adverse effects. Supplementary data Anonymised patient data are given in supplementary data file 1. If further data is required, please contact the corresponding author. Author contributions Author RR: Conception and lead resource and lead clinician. Authors KS, DK, SSD: Clinical study conduction, coordination and data collection. Author SS: Clinical help to A. Author SO: Test technician. Author SV: Protocol Design and data interpretation. Author KR: Data-analysis, interpretation, and manuscript preparation-Dr. Ramarathnam Krishna Kumar. Competing interests The authors declare no competing interests.
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A retrospective analysis of the effect of indomethacin on adverse ' 'reactions to orthoclone OKT3 in the therapy of acute renal allograft ' 'rejection. Am. J. Kidney Dis. 24(3), 486–490 (1994).', 'journal-title': 'Am. J. Kidney Dis.'}, { 'issue': '7', 'key': '10370_CR21', 'first-page': '42', 'volume': '119', 'author': 'R Ravichandran', 'year': '2021', 'unstructured': 'Ravichandran, R. et al. Use of indomethacin in COVID-19 patients: ' 'experience from two medical centres. J. Indian Med. Assoc. 119(7), 42–46 ' '(2021).', 'journal-title': 'J. Indian Med. Assoc.'}, { 'key': '10370_CR22', 'doi-asserted-by': 'publisher', 'first-page': '1', 'DOI': '10.5455/IJMRCR.LOW-DOSE-INDOMETHACIN', 'volume': '2020', 'author': 'R Rajan', 'year': '2020', 'unstructured': 'Rajan, R., Subramanian, S. & Clark, C. Low dose indomethacin for ' 'symptomatic treatment of COVID-19. Int. J. Med. Rev. Case Rep. 2020, 1 ' '(2020).', 'journal-title': 'Int. J. Med. Rev. 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' 'Res. 1(2), 67 (2010).', 'journal-title': 'Perspect. Clin. Res.'}, { 'issue': '1', 'key': '10370_CR26', 'doi-asserted-by': 'publisher', 'first-page': '469', 'DOI': '10.1080/13102818.2020.1775118', 'volume': '34', 'author': 'G Momekov', 'year': '2020', 'unstructured': 'Momekov, G. & Momekova, D. Ivermectin as a potential COVID-19 treatment ' 'from the pharmacokinetic point of view: antiviral levels are not likely ' 'attainable with known dosing regimens. Biotechnol. Biotechnol. Equip. ' '34(1), 469–474 (2020).', 'journal-title': 'Biotechnol. Biotechnol. Equip.'}, { 'issue': '5532', 'key': '10370_CR27', 'doi-asserted-by': 'publisher', 'first-page': '69', 'DOI': '10.1136/bmj.1.5532.69', 'volume': '1', 'author': 'P Donnelly', 'year': '1967', 'unstructured': 'Donnelly, P., Lloyd, K. & Campbell, H. Indomethacin in rheumatoid ' 'arthritis: an evaluation of its anti-inflammatory and side effects. BMJ ' '1(5532), 69–75 (1967).', 'journal-title': 'BMJ'}, { 'key': '10370_CR28', 'unstructured': 'Indomethacin drug usage statistics, United States, 2018 [Internet]. ' '2018. https://clincalc.com/DrugStats/Drugs/Indomethacin'}, { 'issue': '3', 'key': '10370_CR29', 'doi-asserted-by': 'publisher', 'first-page': '102', 'DOI': '10.1007/s40495-021-00257-6', 'volume': '7', 'author': 'M Alkotaji', 'year': '2021', 'unstructured': 'Alkotaji, M. & Al-Zidan, R. N. Indomethacin: can it counteract ' 'bradykinin effects in COVID-19 patients?. Curr. Pharmacol. Rep. 7(3), ' '102–106 (2021).', 'journal-title': 'Curr. Pharmacol. Rep.'}], 'container-title': ['Scientific Reports'], 'original-title': [], 'language': 'en', 'link': [ { 'URL': 'https://www.nature.com/articles/s41598-022-10370-1.pdf', 'content-type': 'application/pdf', 'content-version': 'vor', 'intended-application': 'text-mining'}, { 'URL': 'https://www.nature.com/articles/s41598-022-10370-1', 'content-type': 'text/html', 'content-version': 'vor', 'intended-application': 'text-mining'}, { 'URL': 'https://www.nature.com/articles/s41598-022-10370-1.pdf', 'content-type': 'application/pdf', 'content-version': 'vor', 'intended-application': 'similarity-checking'}], 'deposited': { 'date-parts': [[2022, 4, 19]], 'date-time': '2022-04-19T12:09:09Z', 'timestamp': 1650370149000}, 'score': 1, 'resource': {'primary': {'URL': 'https://www.nature.com/articles/s41598-022-10370-1'}}, 'subtitle': [], 'short-title': [], 'issued': {'date-parts': [[2022, 4, 19]]}, 'references-count': 29, 'journal-issue': {'issue': '1', 'published-print': {'date-parts': [[2022, 12]]}}, 'alternative-id': ['10370'], 'URL': 'http://dx.doi.org/10.1038/s41598-022-10370-1', 'relation': {}, 'ISSN': ['2045-2322'], 'issn-type': [{'value': '2045-2322', 'type': 'electronic'}], 'subject': ['Multidisciplinary'], 'published': {'date-parts': [[2022, 4, 19]]}, 'assertion': [ { 'value': '14 December 2021', 'order': 1, 'name': 'received', 'label': 'Received', 'group': {'name': 'ArticleHistory', 'label': 'Article History'}}, { 'value': '6 April 2022', 'order': 2, 'name': 'accepted', 'label': 'Accepted', 'group': {'name': 'ArticleHistory', 'label': 'Article History'}}, { 'value': '19 April 2022', 'order': 3, 'name': 'first_online', 'label': 'First Online', 'group': {'name': 'ArticleHistory', 'label': 'Article History'}}, { 'value': 'The authors declare no competing interests.', 'order': 1, 'name': 'Ethics', 'group': {'name': 'EthicsHeading', 'label': 'Competing interests'}}], 'article-number': '6413'}
Late treatment
is less effective
Please send us corrections, updates, or comments. c19early involves the extraction of 100,000+ datapoints from thousands of papers. Community updates help ensure high accuracy. Treatments and other interventions are complementary. All practical, effective, and safe means should be used based on risk/benefit analysis. No treatment or intervention is 100% available and effective for all current and future variants. We do not provide medical advice. Before taking any medication, consult a qualified physician who can provide personalized advice and details of risks and benefits based on your medical history and situation. FLCCC and WCH provide treatment protocols.
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