Evidence map›Paper›PMID 34111397›Full record

ReviewEuropean journal of pharmacology2021

Efficacy and safety of dihydroorotate dehydrogenase (DHODH) inhibitors "leflunomide" and "teriflunomide" in Covid-19: A narrative review.

Hardeep Kaur, Phulen Sarma, Anusuya Bhattacharyya, Saurabh Sharma, Neeraj Chhimpa, Manisha Prajapat, Ajay Prakash, Subodh Kumar, Ashutosh Singh, Rahul Singh and 3 more

Open access · greenAbstract readReview
In one paragraph

Review in European journal of pharmacology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
2.8field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 40 citations in OpenAlex.

  1. Review
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  10. Review
  11. Cloning and Characterization of YakAnimals : an open access journal from MDPI · 2023
    Article
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  14. Review
  15. Optimization of CRISPR-Cas system for clinical cancer therapy.Bioengineering & translational medicine · 2023
    Review
  16. Article
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  18. Evaluation of a series of nucleoside analogs as effective anticoronaviral-2 drugs against the Omicron-B.1.1.529/BA.2 subvariant: A repurposing research study.Medicinal chemistry research : an international journal for rapid communications on design and mechanisms of action of biologically active agents · 2023
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 2 institutions in 1 country.

Hardeep KaurDepartment of Pharmacology, PGIMER, Chandigarh, India.
Phulen SarmaDepartment of Pharmacology, PGIMER, Chandigarh, India.
Anusuya BhattacharyyaDepartment of Ophthalmology, GMCH-32, Chandigarh, India.
Saurabh SharmaDepartment of Pharmacology, PGIMER, Chandigarh, India.
Neeraj ChhimpaDepartment of Pharmacology, PGIMER, Chandigarh, India.
Manisha PrajapatDepartment of Pharmacology, PGIMER, Chandigarh, India.
Ajay PrakashDepartment of Pharmacology, PGIMER, Chandigarh, India.
Subodh KumarDepartment of Pharmacology, PGIMER, Chandigarh, India.
Ashutosh SinghDepartment of Pharmacology, PGIMER, Chandigarh, India.
Rahul SinghDepartment of Pharmacology, PGIMER, Chandigarh, India.
Pramod AvtiDepartment of Biophysics, PGIMER, Chandigarh, India.
Prasad ThotaDepartment of Pharmacology, PGIMER, Chandigarh, India.
Bikash MedhiDepartment of Pharmacology, PGIMER, Chandigarh, India. Electronic address: drbikashus@yahoo.com.
Post Graduate Institute of Medical Education and Research · INGovernment Medical College and Hospital · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Dihydroorotate dehydrogenase (DHODH) is rate-limiting enzyme in biosynthesis of pyrimidone which catalyzes the oxidation of dihydro-orotate to orotate. Orotate is utilized in the biosynthesis of uridine-monophosphate. DHODH inhibitors have shown promise as antiviral agent against Cytomegalovirus, Ebola, Influenza, Epstein Barr and Picornavirus. Anti-SARS-CoV-2 action of DHODH inhibitors are also coming up. In this review, we have reviewed the safety and efficacy of approved DHODH inhibitors (leflunomide and teriflunomide) against COVID-19. In target-centered in silico studies, leflunomide showed favorable binding to active site of MPro and spike: ACE2 interface. In artificial-intelligence/machine-learning based studies, leflunomide was among the top 50 ligands targeting spike: ACE2 interaction. Leflunomide is also found to interact with differentially regulated pathways [identified by KEGG (Kyoto Encyclopedia of Genes and Genomes) and reactome pathway analysis of host transcriptome data] in cogena based drug-repurposing studies. Based on GSEA (gene set enrichment analysis), leflunomide was found to target pathways enriched in COVID-19. In vitro, both leflunomide (EC50 41.49 ± 8.8 μmol/L) and teriflunomide (EC50 26 μmol/L) showed SARS-CoV-2 inhibition. In clinical studies, leflunomide showed significant benefit in terms of decreasing the duration of viral shredding, duration of hospital stay and severity of infection. However, no advantage was seen while combining leflunomide and IFN alpha-2a among patients with prolonged post symptomatic viral shredding. Common adverse effects of leflunomide were hyperlipidemia, leucopenia, neutropenia and liver-function alteration. Leflunomide/teriflunomide may serve as an agent of importance to achieve faster virological clearance in COVID-19, however, findings needs to be validated in bigger sized placebo controlled studies.

Indexed as

COVID-19 Drug TreatmentAnimalsAntiviral AgentsCrotonatesDihydroorotate DehydrogenaseDrug RepositioningEnzyme InhibitorsHumansHydroxybutyratesLeflunomideNitrilesOxidoreductases Acting on CH-CH Group DonorsToluidinesAntiviral AgentsCrotonatesDihydroorotate DehydrogenaseEnzyme InhibitorsHydroxybutyratesLeflunomideNitrilesOxidoreductases Acting on CH-CH Group DonorsteriflunomideToluidinesCOVID-19DHODH inhibitorDrug repurposingLeflunomideSARS-CoV-2Teriflunomide

Identifiers

PMID34111397
PMCPMC8180448
OpenAlexW3171595980

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.