Evidence map›Paper›PMID 21462215›Full record

Trial reportClinical cardiology2011

Coenzyme Q10 terclatrate and creatine in chronic heart failure: a randomized, placebo-controlled, double-blind study.

Stefano Fumagalli, Francesco Fattirolli, Lorenzo Guarducci, Tommaso Cellai, Samuele Baldasseroni, Francesca Tarantini, Mauro Di Bari, Giulio Masotti, Niccolò Marchionni

Open access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Clinical cardiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
1.7field-weighted citation impact, top 16% 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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it, 45 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Well-Known and Novel Behavioural Risk Factors for Heart Failure.Journal of cardiovascular development and disease · 2026
    Review
  5. Review
  6. Evaluation of the Coenzyme QArchives of Razi Institute · 2023
    Article
  7. Review
  8. Creatine deficiency and heart failure.Heart failure reviews · 2022
    Review
  9. Heart Failure-Do We Need New Drugs or Have Them Already? A Case of Coenzyme Q10.Journal of cardiovascular development and disease · 2022
    Review
  10. Article
  11. Role of Coenzyme QAntioxidants (Basel, Switzerland) · 2021
    Review
  12. Coenzyme QAntioxidants (Basel, Switzerland) · 2021
    Review
  13. Review
  14. Review
  15. Article
  16. Review
  17. Review
  18. Review
  19. Cardiac cachexia: hic et nunc.Journal of cachexia, sarcopenia and muscle · 2016
    Review
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Stefano FumagalliDepartment of Critical Care Medicine and Surgery, Unit of Gerontology and Geriatrics, University of Florence and Azienda Ospedaliero-Universitaria Careggi, Florence, Italy. fumadue@tin.it
Francesco Fattirolli
Lorenzo Guarducci
Tommaso Cellai
Samuele Baldasseroni
Francesca Tarantini
Mauro Di Bari
Giulio Masotti
Niccolò Marchionni
Azienda Ospedaliero-Universitaria Careggi · ITUniversity of Florence · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundStudies have suggested that micronutrient deficiency has some role in the progression of chronic heart failure (CHF). HYPOTHESIS: Oral supplementation with coenzyme Q(10) (CoQ(10)) and creatine may reduce mitochondrial dysfunction that contributes to impaired physical performance in CHF.

methodsWe conducted a randomized, double-blind, placebo-controlled trial to determine the effect of a mixture of water-soluble CoQ(10) (CoQ(10) terclatrate; Q-ter) and creatine on exercise tolerance and health-related quality of life. Exercise tolerance was measured as total work capacity (kg·m) and peak oxygen consumption (VO(2), mL/min/kg), both from a cardiopulmonary exercise test. Health-related quality of life was measured by the Sickness Impact Profile (SIP) in CHF secondary to left ventricular systolic dysfunction (left ventricular ejection fraction ≤ 35%). After baseline assessment, 67 patients with stable CHF were randomized to receive Q-ter 320 mg + creatine 340 mg (n = 35) or placebo (n = 32) once daily for 8 weeks.

resultsAt multivariate analysis, 8-week peak VO(2) was significantly higher in the active treatment group than in the placebo group (+1.8 ± 0.9 mL/min/kg, 95% CI: 0.1-3.6, P < 0.05). No untoward effects occurred in either group.

conclusionsThis study suggests that oral Q-ter and creatine, added to conventional drug therapy, exert some beneficial effect on physical performance in stable systolic CHF. Results may support the design of larger studies aimed at assessing the long-term effects of this treatment on functional status and harder outcomes.

Indexed as

Dietary SupplementsAdministration, OralAgedChi-Square DistributionChronic DiseaseCreatineDeficiency DiseasesDouble-Blind MethodDrug CombinationsExercise TestExercise ToleranceFemaleHeart FailureHumansMaleMedication Adherencecoenzyme Q10CreatineDrug CombinationsUbiquinone

Identifiers

PMID21462215
PMCPMC6652705
OpenAlexW2027070693

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.