Evidence map›Paper›PMID 38773199›Full record

Trial reportScientific reports2024

Glycine by enteral route does not improve major clinical outcomes in severe COVID-19: a randomized clinical pilot trial.

Mario H Vargas, Jaime Chávez, Rosangela Del-Razo-Rodríguez, Carolina Muñoz-Perea, Karina Julieta Romo-Domínguez, Renata Báez-Saldaña, Uriel Rumbo-Nava, Selene Guerrero-Zúñiga

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04443673 (Controlled and Randomized Clinical Trial for Evaluating the Effect of a Supplement of Glycine as Adjuvant in the Treatment of COVID-19 Pneumonia in Patients Initiating Mechanical Ventilation), which is not on this map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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.

NCT04443673 naterminatednot on this map

Controlled and Randomized Clinical Trial for Evaluating the Effect of a Supplement of Glycine as Adjuvant in the Treatment of COVID-19 Pneumonia in Patients Initiating Mechanical Ventilation

TypeinterventionalSponsorInstituto Nacional de Enfermedades RespiratoriasRan2020 to 2021Enrolled59ConditionsCOVID-19, SARS-CoV Infection, SARS (Severe Acute Respiratory Syndrome), SARS PneumoniaArmsGlycine
3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Trial
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

8 authors.

Mario H Vargas *Departamento de Investigación en Hiperreactividad Bronquial, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Calzada de Tlalpan 4502, CP 14080, Ciudad de México, México. mhvargasb@yahoo.com.mx.
Jaime Chávez *Departamento de Investigación en Hiperreactividad Bronquial, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Calzada de Tlalpan 4502, CP 14080, Ciudad de México, México.
Rosangela Del-Razo-RodríguezServicio Clínico de Neumología Pediátrica, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Ciudad de México, México.
Carolina Muñoz-PereaServicio de Urgencias, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Ciudad de México, México.
Karina Julieta Romo-DomínguezServicio de Urgencias, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Ciudad de México, México.
Renata Báez-SaldañaServicio Clínico 3, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Ciudad de México, México.
Uriel Rumbo-NavaServicio Clínico 3, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Ciudad de México, México.
Selene Guerrero-ZúñigaUnidad de Medicina del Sueño, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Ciudad de México, México.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

There is a worrying scarcity of drug options for patients with severe COVID-19. Glycine possesses anti-inflammatory, cytoprotective, endothelium-protective, and platelet-antiaggregant properties, so its use in these patients seems promising. In this open label, controlled clinical trial, inpatients with severe COVID-19 requiring mechanical ventilation randomly received usual care (control group) or usual care plus 0.5 g/kg/day glycine by the enteral route (experimental group). Major outcomes included mortality, time to weaning from mechanical ventilation, total time on mechanical ventilation, and time from study recruitment to death. Secondary outcomes included laboratory tests and serum cytokines. Patients from experimental (n = 33) and control groups (n = 23) did not differ in basal characteristics. There were no differences in mortality (glycine group, 63.6% vs control group, 52.2%, p = 0.60) nor in any other major outcome. Glycine intake was associated with lower fibrinogen levels, either evaluated per week of follow-up (p < 0.05 at weeks 1, 2, and 4) or as weighted mean during the whole hospitalization (608.7 ± 17.7 mg/dl vs control 712.2 ± 25.0 mg/dl, p = 0.001), but did not modify any other laboratory test or cytokine concentration. In summary, in severe COVID-19 glycine was unable to modify major clinical outcomes, serum cytokines or most laboratory tests, but was associated with lower serum fibrinogen concentration.Registration: ClinicalTrials.gov NCT04443673, 23/06/2020.

Indexed as

COVID-19COVID-19 Drug TreatmentGlycineRespiration, ArtificialAgedCytokinesFemaleFibrinogenHumansMaleMiddle AgedPilot ProjectsSARS-CoV-2Treatment OutcomeCytokinesFibrinogenGlycine

Identifiers

PMID38773199
PMCPMC11109244

What Socratic holds

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Registered trials

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 Socratic graph.