ClinicalTrials.gg
CompletedNCT03351998Updated Dec 18, 2024Results posted

Impact of Statin Therapy on Muscle Mitochondrial Function and Aerobic Capacity

A Phase 4 interventional study of Lipitor 20Mg Tablet and Lipitor 80Mg Tablet in Mitochondrial Diseases, sponsored by University of Kansas Medical Center. Completed at 2 sites in United States. Open to participants aged 35 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-12-18.

Sponsored by University of Kansas Medical Center · Phase 4, Interventional, and Prevention

Phase
Phase 4
Study type
Interventional
Enrollment
68
Allocation
Randomized
Ages
35 Years to 65 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 83 studies in Mitochondrial Diseases with a site in United States — 20 open to participants now, 22 under way, 3 of them phase 3. Mitochondrial Diseases · United States.

Enrollment
15th of 50
68 · median 38
Started
2018
with 6 others
Phase 4
3 of 83
none open now
Registered
51st of 83
by date

Among the 83 studies in Mitochondrial Diseases with a site in United States, this one is the 15th largest by enrollment of the 50 interventional ones that give a count, is one of 7 that started in 2018, is one of 3 in phase 4, and was the 51st registered.

Mitochondrial Diseases

189 studies on the registry are indexed under Mitochondrial Diseases; 60 are open to participants now.

Browse Mitochondrial Diseases studies →

Open to participants now

20 of the 83 studies in Mitochondrial Diseases with a site in United States are open now. Recruiting first, the newest first:

15 more — sign in →

All 20 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 40 Mitochondrial Diseases studies recruiting now, 20 (50%) set no upper age limit and 13 (33%) stop at 75 or younger; 19 take children under 18; 17 take healthy volunteers.

This study: 35 Years to 65 Years · all sexes · healthy volunteers too.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 83 studies in Mitochondrial Diseases with a site in United States, or all of them as a file.
02

Study summary

The purpose of this study is to test how different doses of a statin, Lipitor, affect muscle health and function, and cardiovascular fitness.

03

Conditions studied

  • Mitochondrial Diseases

Keywords

  • insulin sensitivity
  • cardiorespiratory fitness
  • skeletal muscle mitochondrial function
04

Who can participate

Ages eligible
35 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • (BMI) between 25-43
  • Weight stable (no more than 5% change in body weight the previous 3 months)
  • >5% risk for a cardiovascular event in the next 10 years according to the 2013 American College of Cardiology/American Heart Association risk calculator and/or 2 out of 5 metabolic syndrome risk factors (Triglycerides ≥ 150 mg/dL; HDL ≤ 40 mg/dL; Glucose ≥ 100mg/dL; Waist Circumference ≥ 102cm for males, 88cm for females; Blood pressure: ≥ 130mmHg systolic and/or 85mmHg diastolic or being treated for hypertension) and/or LDL-Cholesterol >120 mg/dl.
  • Stable doses of medications for 90 days
  • Willing to stop all Nonsteroidal Antiinflammatory Drugs (NSAIDs) and aspirin for 7 days prior to muscle

Exclusion criteria

Exclusion Criteria:

  • Smoking
  • Previous use of statins
  • Use of other medications or supplements that affect lipid profiles or body weight in the last 6 months (e.g., fibric acids, bile acid sequestrants, nicotinic acids, fish oil)
  • Diagnosis of chronic diseases including CVD, other metabolic diseases (e.g., thyroid), current diagnosis and active treatment of cancer, , or acquired immunodeficiency syndrome.
  • Diagnosis of type 1 or type 2 diabetes at the time of screening (fasting blood glucose >126mg/dL). If evidence of type 2 diabetes outcome measures is detected during the course of the study (fasting glucose > 126 mg/dl or > 6.5%) we will notify the participant to contact their physician.
  • History of abnormal bleeding problems
  • Currently taking (within the last 10 days) anti- medication (Plavix), Warfarin, and other anti-coagulants (eliquis, pradaxa, and xarelto) medications.
  • >2 fold upper normal limit (UNL) for (ALT) or creatinine
  • Women who are pregnant or breastfeeding
  • Individuals with polymorphisms (SLCO1B1 and GATM) known to be associated with susceptibility for statin induced myopathies (tested at screening)
  • Currently enrolled in another research study
Terms in these criteria, in plain language(6)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

HbA1c

A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

05

Study design

Phase
Phase 4
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
68 participants (actual)

Study arms

  • Placebo comparator
    Placebo

    Participants receiving matching placebo oral tablet.

    Drug: Placebo Oral Tablet

  • Active comparator
    Low dose statin

    Participants will receive Lipitor 20Mg Tablet to take daily.

    Drug: Lipitor 20Mg Tablet

  • Active comparator
    High dose statin

    Participants will receive Lipitor 80Mg Tablet to take daily.

    Drug: Lipitor 80Mg Tablet

Interventions

  • 20 mg/day pills.

    Also known as: atorvastatin

  • 80 mg/day pills.

    Also known as: atorvastatin

  • DrugPlacebo Oral Tablet

    Matching placebo pill.

    Also known as: Placebo

06

What researchers measure

Primary outcomes

  1. Difference in Mitochondrial Respiratory Function

    Time frame: value at 12 months minus value at baseline

Secondary outcomes

  1. Change in VO2 Max

    Time frame: value at 12 months minus value at baseline

07

Results

Posted Dec 18, 2024
Limitations and caveats
The COVID-19 epidemic started in the middle of the trial forcing us to stop recruitment for four months. Furthermore, the continuation of the pandemic slowed recruitment for the rest of the trial and significantly impacted n size. There was also a national dextrose shortage following a hurricane in Puerto Rico. As a result many of the IVGTT were not conducted.

Participant flow

Participant flow — Overall Study
MilestonePlaceboLow Dose StatinHigh Dose Statin
Started232421
Completed161917
Not completed754

Outcome measures

PrimaryDifference in Mitochondrial Respiratory Function
Time frame:
value at 12 months minus value at baseline
Reported as:
Mean · pmols/s/mg
Difference in Mitochondrial Respiratory Function
pmols/s/mgPlaceboLow Dose StatinHigh Dose Statin
Difference in Mitochondrial Respiratory Function36 ± 36632 ± 213-3 ± 180
Statistical analysis
  • Placebo · signed rank test · p = 0.6051 · Mean difference (net): 36.02This is within group 12 month change.
  • Low Dose Statin · signed rank test · p = 0.9434 · Mean difference (net): 31.89This is within group 12 month change.
  • High Dose Statin · t-test, 2 sided · p = 0.9408 · Mean difference (net): -3.39This is within group 12 month change.
SecondaryChange in VO2 Max
Time frame:
value at 12 months minus value at baseline
Reported as:
Mean · L/min
Change in VO2 Max
L/minPlaceboLow Dose StatinHigh Dose Statin
Change in VO2 Max-0.2 ± 0.230.03 ± 0.16-0.06 ± 0.18
Statistical analysis
  • Placebo · t-test, 2 sided · p = 0.7458 · Mean difference (net): -0.2This is within group 12 month change.
  • Low Dose Statin · t-test, 2 sided · p = 0.4056 · Mean difference (net): 0.03This is within group 12 month change.
  • High Dose Statin · t-test, 2 sided · p = 0.1932 · Mean difference (net): -0.06This is within group 12 month change.

Adverse events

Collected over Participants were contacted weekly by phone or email and prompted to disclose any adverse events. Additional adverse events could be reported if participant contacted study team outside of the usual weekly check in. Adverse events were monitored until symptoms subsided or adverse event ended or until the end of the 12 month intervention period.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Placebo0/23 (0%)1/23 (4.3%)15/23 (65.2%)
Low Dose Statin0/24 (0%)0/24 (0%)17/24 (70.8%)
High Dose Statin0/21 (0%)0/21 (0%)14/21 (66.7%)
Most frequent serious events
Most frequent serious events
EventPlaceboLow Dose StatinHigh Dose Statin
Cardiovascular event (SVT) unrelated to interventionCardiac disorders1/230/240/21
Most frequent other events
Most frequent other events
EventPlaceboLow Dose StatinHigh Dose Statin
Muscle or Joint PainMusculoskeletal and connective tissue disorders6/238/246/21
Adverse event related to testing for studyInvestigations2/235/242/21
GI UpsetGastrointestinal disorders2/233/243/21
Sinus Infection/Flu SymptomsRespiratory, thoracic and mediastinal disorders0/233/243/21
COVID-19Respiratory, thoracic and mediastinal disorders3/233/240/21
UTIRenal and urinary disorders2/230/240/21

Baseline characteristics

Age, Continuous
Age, Continuous(years)PlaceboLow Dose StatinHigh Dose StatinTotal
Mean52.98 ± 8.2854.53 ± 7.6654.10 ± 7.1453.87 ± 7.64
Sex: Female, Male
Sex: Female, Male(Participants)PlaceboLow Dose StatinHigh Dose StatinTotal
Female16171649
Male77519
Race (NIH/OMB)
Race (NIH/OMB)(Participants)PlaceboLow Dose StatinHigh Dose StatinTotal
American Indian or Alaska Native0000
Asian0000
Native Hawaiian or Other Pacific Islander0000
Black or African American2136
White20231659
More than one race0000
Unknown or Not Reported1023
Region of Enrollment
Region of Enrollment(participants)PlaceboLow Dose StatinHigh Dose StatinTotal
United States23242168
Total Cholesterol
Total Cholesterol(mg/dL)PlaceboLow Dose StatinHigh Dose StatinTotal
Mean199.65 ± 38.82211.75 ± 41.68214.33 ± 33.53208 ± 38.32
Weight
Weight(kg)PlaceboLow Dose StatinHigh Dose StatinTotal
Mean93.79 ± 13.8990.60 ± 15.8789.28 ± 15.2291.27 ± 14.92
BMI
BMI(kg/m^2)PlaceboLow Dose StatinHigh Dose StatinTotal
Mean32.96 ± 4.5531.14 ± 3.7432.31 ± 4.9832.12 ± 4.43
Relative Peak VO2 Max
Relative Peak VO2 Max(mL/kg/min)PlaceboLow Dose StatinHigh Dose StatinTotal
Mean24.12 ± 5.725.53 ± 6.9724.92 ± 5.1224.87 ± 5.96
08

Study locations

2 sites
  • University of Kansas Medical Center
    Kansas City, Kansas 66160, United States
  • East Carolina University
    Greenville, North Carolina 27858, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Feb 2018 to primary completion in Jul 2023, 64 months.

Results were first posted in Dec 2024, 1 year 5 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 20, 2017
First posted
Nov 24, 2017
StartActual
Feb 22, 2018
Primary completionActual
Jul 7, 2023
CompletionActual
Jul 7, 2023
Results first posted
Dec 18, 2024
Last update
Dec 18, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 18, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03351998
Responsible party
Sponsor
First posted
Nov 24, 2017
Start date
Feb 22, 2018
Primary completion
Jul 7, 2023
Completion
Jul 7, 2023
Results posted
Dec 18, 2024
Last update
Dec 18, 2024

Study contacts

John Thyfault, PhD
principal investigator · University of Kansas Medical Center

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Atorvastatin

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