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Metabolic Features of Post-Myopathy Patients Associated With Statin Treatment

This study has been terminated.
(Principal Investigator left institution)
Sponsor:
Information provided by (Responsible Party):
Rockefeller University
ClinicalTrials.gov Identifier:
NCT01040650
First received: December 24, 2009
Last updated: August 29, 2013
Last verified: August 2013

December 24, 2009
August 29, 2013
August 2009
January 2012   (final data collection date for primary outcome measure)
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Complete list of historical versions of study NCT01040650 on ClinicalTrials.gov Archive Site
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Metabolic Features of Post-Myopathy Patients Associated With Statin Treatment
Metabolic Features of Post-Myopathy Patients Associated With Statin Treatment

Statins are a class of drugs given to lower cholesterol. Although statins are considered to be generally safe, some studies show that about 10% of people on statins develop muscle-related symptoms, from fatigue (tiredness), weakness, cramping, pain and sometimes a lifethreatening muscle breakdown condition known as rhabdomyolysis. In some, these symptoms may greatly affect their daily activities. One consideration why symptoms develop in only some patients is that they may have an underlying problem in the way their muscles use fats to produce energy. In these patients, the muscles are not able to fully utilize fats and so they become tired more easily. Fat within the muscle can also affect how your body uses a hormone called insulin, which affects your blood sugar levels. The investigators are specifically interested in previous statin users and determine if the muscle symptoms are related to changes in energy and sugar use. We propose to enroll patients who have developed muscle side effects on previous statin treatment and have since discontinued statin treatment.

Our aim is to compare the metabolic parameters in these patients to age and gender-matched normal individuals.

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Observational
Observational Model: Cohort
Time Perspective: Prospective
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Retention:   Samples With DNA
Description:

Blood and urine

Probability Sample

Subjects with statin associated myopathy and normal controls

Myopathy (Statin Associated)
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  • Normal Controls
    Normal Controls
  • Statin associated myopathy
    subjects with statin associated myopathy
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*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Terminated
23
January 2012
January 2012   (final data collection date for primary outcome measure)

Inclusion Criteria:

SAM Group

  1. Males and females 40-65 yrs old; females must be post-menopause (>12 months since last menstrual period)
  2. Developed statin-associated myopathy, defined as:

    • Documented elevated levels of CPK > 3x upper limit of normal with muscle pain, weakness, cramping during statin treatment, or
    • Diagnosed with rhabdomyolysis, or
    • Developed muscle pain, weakness, cramping during statin treatment that resulted in statin discontinuation by the subject's MD
    • Developed recurrence of muscle symptoms after resumption of statin treatment, or A score of at least 5/17 on the INQoL on screening on any of the aspects of muscle symptoms (weakness, pain, locking or tiredness) based on subject's recall at the height of the muscle symptoms
  3. Able to ambulate independently (in order to perform exercise tests)
  4. Muscle symptoms started/ occurred within one year of starting statin treatment or within one year of changing statin brand or dose adjustment
  5. Discontinued statins at least 2 months from study inclusion date
  6. 20% probability of having a cardiovascular (CV) event in the next 10 years calculated using an online CV risk calculator AND with a low or a moderate American College of Sports Medicine (ACSM) risk stratification for a cardiovascular event during a treadmill test

Normal Control Group

  1. Age and gender-matched individuals who are not on statins but would otherwise be candidates for statin treatment based on ATP III guidelines and have not experienced severe muscle pain, weakness or cramping at rest or during exercise
  2. Have not been diagnosed with a myopathy
  3. Have no family history of a myopathy or age and gender-matched individuals who have previously been on statins and did not develop muscle side effects, and have been off statins (for other than medical reasons) for at least 2 months from study inclusion
  4. 20% probability of having a cardiovascular (CV) event in the next 10 years calculated using an online CV risk calculator AND with a low or a moderate American College of Sports Medicine (ACSM) risk stratification for a cardiovascular event during a treadmill test

Exclusion Criteria:

Applies to both groups of subjects

  1. Current treatment with other lipid-lowering agents, or intake of red yeast rice
  2. Impaired liver or kidney function ( ALT or AST 3x upper limit of normal, creatinine 3x upper limit of normal)
  3. Untreated hypo or hyperthyroidism
  4. Documented history of muscle disorder or myopathy other than statin-associated myopathy or previous history of elevated CPK prior to statin exposure
  5. Anemia (Hb< 110 g/dL)
  6. Cancer
  7. Known diabetes or fasting blood glucose >126 mg/dL
  8. HIV-1 infection
  9. Uncontrolled blood pressure 130/80 on two anti-hypertensive drugs
  10. Currently taking beta blockers
  11. Known coronary artery disease or peripheral vascular disease
  12. Chronic illnesses such as lupus, rheumatoid arthritis, psoriasis
  13. Long term oral, nasal, or inhaler steroid use > 6 months
  14. On Hormone Therapy except for thyroid replacement
  15. Alcohol consumption 40 g/day (3 glasses/day wine or beers or binge drinking 4 glasses/night)
  16. Surgery in the past 6 months except for minor excision/incision procedures, 12-L electrocardiogram demonstrating old/new myocardial infarction/ ischemia or other findings that, at the investigators' discretion, may put the subject at high risk
  17. Cognitive impairment that prevents comprehension of questionnaires
  18. Inability to read English (questionnaire language)
  19. Body mass index > 30 kg/m2
  20. Physical disability or previous injury that prevents safe exercise testing
  21. Not eligible for MRS (attachment)
Both
40 Years to 65 Years
Yes
Contact information is only displayed when the study is recruiting subjects
United States
 
NCT01040650
PAM-0672
No
Rockefeller University
Rockefeller University
Not Provided
Not Provided
Rockefeller University
August 2013

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP