Evidence map›Paper›PMID 37883347›Full record

Trial reportPloS one2023

A randomized controlled trial of teprenone in terms of preventing worsening of COVID-19 infection.

Eiki Ichihara, Kou Hasegawa, Kenichiro Kudo, Yasushi Tanimoto, Kazuhiro Nouso, Naohiro Oda, Sho Mitsumune, Haruto Yamada, Ichiro Takata, Hideharu Hagiya and 8 more

Open access · goldAbstract readRandomized Controlled TrialClinical Trial, Phase II
In one paragraph

Trial report in PloS one, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.6field-weighted citation impact, top 33% 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

2 citing papers in PubMed, 3 citations in OpenAlex.

  1. Article
  2. Article
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

18 authors at 5 institutions in 1 country.

Eiki IchiharaDepartment of Allergy and Respiratory Medicine, Okayama University Hospital, Okayama, Japan.ORCID 0000-0002-2966-106X
Kou HasegawaDepartment of General Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan.
Kenichiro KudoDepartment of Respiratory Medicine, National Hospital Organization Okayama Medical Center, Okayama, Japan.
Yasushi TanimotoDepartment of Allergy and Respiratory Medicine, National Hospital Organization Minami-Okayama Medical Center, Japan.
Kazuhiro NousoDepartment of Gastroenterology, Okayama City Hospital, Okayama, Japan.
Naohiro OdaDepartment of Internal Medicine, Fukuyama City Hospital, Fukuyama, Japan.
Sho MitsumuneDepartment of Respiratory Medicine, National Hospital Organization Okayama Medical Center, Okayama, Japan.
Haruto YamadaDepartment of Infectious Disease, Okayama City Hospital, Okayama, Japan.
Ichiro TakataDepartment of Internal Medicine, Fukuyama City Hospital, Fukuyama, Japan.
Hideharu HagiyaDepartment of General Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan.
Toshiharu MitsuhashiCenter for Innovative Clinical Medicine, Okayama University Hospital, Okayama, Japan.
Akihiko TaniguchiDepartment of Allergy and Respiratory Medicine, Okayama University Hospital, Okayama, Japan.
Shinichi ToyookaDepartment of General Thoracic Surgery and Breast and Endocrine Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan.
Kohei TsukaharaDepartment of Emergency, Critical Care and Disaster Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Toshiyuki AokageDepartment of Emergency, Critical Care and Disaster Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Hirokazu TsukaharaDepartment of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Katsuyuki KiuraDepartment of Allergy and Respiratory Medicine, Okayama University Hospital, Okayama, Japan.
Yoshinobu MaedaDepartment of Hematology, Oncology and Respiratory Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan.
Okayama University · JPOkayama University Hospital · JPNational Hospital Organization · JPFukuyama City Hospital · JPOkayama Prefecture · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSome COVID-19 patients develop life-threatening disease accompanied by severe pneumonitis. Teprenone induces expression of heat-shock proteins (HSPs) that protect against interstitial pneumonia in preclinical models. We explored whether teprenone prevented worsening of COVID-19 infections.

methodsThis open-label, randomized, pilot phase 2 clinical trial was conducted at five institutions in Japan. We randomized patients hospitalized for COVID-19 with fever to teprenone or no-teprenone groups in a 1:1 ratio. We stratified patients by sex, age < and ≥ 70 years and the existence (or not) of complications (hypertension, diabetes, ischemic heart disease, chronic pulmonary disease and active cancer). No limitation was imposed on other COVID-19 treatments. The primary endpoint was the intubation rate.

resultsOne hundred patients were included, 51 in the teprenone and 49 in the no- teprenone groups. The intubation rate did not differ significantly between the two groups: 9.8% (5/51) vs. 2.0% (1/49) (sub-hazard ratio [SHR] 4.99, 95% confidence interval [CI]: 0.59-42.1; p = 0.140). The rates of intra-hospital mortality and intensive care unit (ICU) admission did not differ significantly between the two groups: intra-hospital mortality 3.9% (2/51) vs. 4.1% (2/49) (hazard ratio [HR] 0.78, 95%CI: 0.11-5.62; p = 0.809); ICU admission 11.8% (6/51) vs. 6.1% (3/49) (SHR 1.99, 95%CI: 0.51-7.80; p = 0.325).

conclusionTeprenone afforded no clinical benefit.

trial registrationJapan Registry of Clinical Trials jRCTs061200002 (registered on 20/May/2020).

Indexed as

COVID-19DiterpenesAgedHumansIntensive Care UnitsSARS-CoV-2Treatment OutcomeDiterpenesgeranylgeranylacetone

Identifiers

PMID37883347
PMCPMC10602324
OpenAlexW4387966678

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.