Cited by 200Coenzyme Q10 studies and effectsLipoproteins and Cardiovascular HealthComplementary and Alternative Medicine Studies

A randomized trial of Coenzyme Q10 in patients with confirmed statin myopathy

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Taylor, Beth A., Lorson, Lindsay, White, C. Michael, Thompson, Paul D.·2015·Atherosclerosis

Abstract

Background Coenzyme Q10 (CoQ10) supplementation is the most popular therapy for statin myalgia among both physicians and patients despite limited and conflicting evidence of its efficacy.Objective This study examined the effect of coenzyme Q10 (CoQ10) supplementation on simvastatin-associated muscle pain, muscle strength and aerobic performance in patients with confirmed statin myalgia.Methods Statin myalgia was confirmed in 120 patients with prior symptoms of statin myalgia using an 8-week randomized, double-blind crossover trial of simvastatin 20 mg/d and placebo. Forty-one subjects developed muscle pain with simvastatin but not with placebo and were randomized to simvastatin 20 mg/d combined with CoQ10 (600 mg/d ubiquinol) or placebo for 8 weeks. Muscle pain (Brief Pain Inventory [BPI]), time to pain onset, arm and leg muscle strength, and maximal oxygen uptake (VO2max) were measured before and after each treatment.Results Serum CoQ10 increased from 1.3 ± 0.4 to 5.2 ± 2.3 mcg/mL with simvastatin and CoQ10, but did not increase with simvastatin and placebo (1.3 ± 0.3 to 0.8 ± 0.2) (p < 0.05). BPI pain severity and interference scores increased with simvastatin therapy (both p < 0.01), irrespective of CoQ10 assignment (p = 0.53 and 0.56). There were no changes in muscle strength or VO2max with simvastatin with or without CoQ10 (all p > 0.10). Marginally more subjects reported pain with CoQ10 (14 of 20 vs 7 of 18; p = 0.05). There was no difference in time to pain onset in the CoQ10 (3.0 ± 2.0 weeks) vs. placebo (2.4 ± 2.1 wks) groups (p = 0.55). A similar lack of CoQ10 effect was observed in 24 subjects who were then crossed over to the alternative treatment.Conclusions Only 36% of patients complaining of statin myalgia develop symptoms during a randomized, double-blind crossover of statin vs placebo. CoQ10 supplementation does not reduce muscle pain in patients with statin myalgia. Trial RegistrationNCT01140308; www.clinicaltrials.gov.

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Crossref · 10.1016/j.atherosclerosis.2014.12.016

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  • Qu et al. appears to have misinterpreted the direction of the change in pain score for two included studies.

    “Qu et al., appears to have misinterpreted the direction of the change in pain score for two included studies [8,12].”

    From Effect of Coenzyme Q10 on statin-associated myalgia and adherence to statin therapy: A systematic review and meta-analysis (2020) · cites this paper as [12]

    The Results section (page unavailable) reports that pain scores increased with statin therapy in both treatment groups, establishing the direction of change in this study. The paper does not assess Qu et al.’s interpretation or report the pain-score direction for the second study, so it cannot by itself establish the alleged two-study error. (LLM, conf=0.78)

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  • Three studies reported a run-in period in which patients stopped statin intake prior to trial start to assure that myopathic pain and other side effects were caused by statin intake.

    “Of all seven studies, three studies reported a run-in period in which patients were asked to stop statin intake prior to the start of the trial to assure that the myopathic pain and other side effects are caused by the statin-intake.(34,40,41)”

    From Effects of coenzyme Q10 supplementation on myopathy in statin-treated patients: a systematic review and meta-analysis (2025) · cites this paper as [41]

    The Methods section (“Confirmation of Statin-Associated Myalgia”) says subjects stopped cholesterol medications for four weeks before a crossover lead-in trial designed to confirm statin-related muscle pain. This supports the cited paper as an example of the reported procedure, but it does not say that the procedure confirmed other side effects. (LLM, conf=0.85)

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  • In Taylor et al., statin intake caused increased muscle pain intensity during the trial, which was higher in the intervention group.

    “In this study, statin-intake caused an increased muscle pain intensity in the course of the trial, which was higher in the intervention group.(41)”

    From Effects of coenzyme Q10 supplementation on myopathy in statin-treated patients: a systematic review and meta-analysis (2025) · cites this paper as [41]

    The Results report that pain severity increased with statin therapy in both the CoQ10 and placebo groups. They found no difference between groups in pain severity or pain interference scores, so the claim that pain intensity was higher in the intervention group is not supported. A marginally higher proportion of CoQ10 recipients reported muscle pain at treatment end, but that measures occurrence, not intensity. (LLM, conf=0.90)

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  • Because medication intake was investigated in only four studies, effects of the intervention on the intensity of muscle pain might be underestimated in the remaining trials.

    “As medication intake was only investigated in four studies,(34,39–41) effects of the intervention on the intensity of muscle pain might be underestimated in the remaining trials.(33,42,43)”

    From Effects of coenzyme Q10 supplementation on myopathy in statin-treated patients: a systematic review and meta-analysis (2025) · cites this paper as [41]

    The Methods (Measurement of Muscle Pain) and Results show that this trial measured muscle-pain intensity and compared CoQ10 with placebo. The paper does not say that unmeasured medication intake might have caused the intervention’s effect on pain intensity to be underestimated. Its Methods (Medication Compliance Assessment) describe tracking adherence to the study pills, which does not establish whether other medication intake was assessed. (LLM, conf=0.78)

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  • The trials comparing statin-based therapy to placebo showed similar between-group incidence of muscle symptoms and statin-discontinuation rate.

    “The trials comparing statin-based therapy to placebo showed similar between-group incidence of muscle symptoms and statin-discontinuation rate. [20,21,25,26,43,47]”

    From Safety outcomes of statin vs non-statin lipid-lowering interventions in patients with prior statin-associated muscle symptoms: A systematic review and meta-analysis (2025) · cites this paper as [21]

    The Discussion (page unavailable) reports muscle pain during simvastatin and placebo phases of a crossover trial; its percentages imply broadly similar overall symptom incidence. The paper does not report comparable statin-discontinuation rates between those phases. The discontinuations described in Methods were from a later comparison of statin plus CoQ10 versus statin plus placebo, not statin versus placebo. (LLM, conf=0.85)

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Authors
Taylor, B. A., Lorson, L., White, C. M., & Thompson, P. D.
Affiliations
Hartford Hospital (US)
Venue
Atherosclerosis
Publisher
Elsevier BV
Published
2015-02
Volume
238
Issue
2
Pages
329-335
ISSN
0021-9150 (ISSN-L)
OpenAlex
W1995622206
Cited by
200
References
27
Citations by year
2026: 11 · 2025: 13 · 2024: 10 · 2023: 7 · 2022: 16 · 2021: 10 · 2020: 25 · 2019: 23 · 2018: 21 · 2017: 22 · 2016: 24 · 2015: 17
FWCI
8.60
Type
journal article
Language
en
Open access
Locations
  • Atherosclerosis (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
NCCAM (1RC1AT005836)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Coenzyme Q10 studies and effects
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
  • Health Sciences › Medicine › Complementary and alternative medicine › Complementary and Alternative Medicine Studies
Keywords
coenzyme Q10, ubiquinol, statin-induced myopathy, simvastatin, myalgia, muscle strength, aerobic performance, coenzyme Q10 supplementation, crossover trial, exercise-induced myalgia, statin intolerance
MeSH terms
Aged, Connecticut, Double-Blind Method, Female, Humans, Male, Middle Aged, Oxygen Consumption, Pain Measurement, Surveys and Questionnaires, Severity of Illness Index, Time Factors, Ubiquinone, Treatment Outcome, Muscle, Skeletal, Cross-Over Studies, Hydroxymethylglutaryl-CoA Reductase Inhibitors, Simvastatin, Muscle Strength, Myalgia

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