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High-dose Ascorbic Acid Intravenous Injection Decreases Mitochondrial DNA Damage in Chronic Fatigue Patients: Randomized-controlled Study

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified August 2013 by Yonsei University.
Recruitment status was:  Recruiting
ClinicalTrials.gov Identifier:
First Posted: August 20, 2013
Last Update Posted: August 20, 2013
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Yonsei University
Reactive Oxygen Species (ROS) can cause oxidative damage, resulting in oxidation of lipids, proteins and DNA. In fatigue patients, there are some evidences of oxidative damage to DNA. Ascorbic acid was known to protect mitochondrial injury against oxidative stress by depolarizing the mitochondrial membrane. The copy number of mitochondrial DNA(mtDNA) was suggested mitochondrial gene stability and biogenesis and reflected mitochondrial function. There is no evidence ascorbic acid would decrease the mtDNA damage in fatigue patients. The investigators hypothesized that decreasing in mtDNA copy number in salivary and blood sample may be reversed by high-dose vitamin C intravenous injection in fatigue patients. The investigators will compare the mtDNA copy number and fatigue scale between moderate-severe fatigue patients and control group that had not malignant and chronic illness by a randomized controlled trial.

Condition Intervention Phase
Chronic Fatigue Drug: ascorbic acid 10g/20ml Drug: Normal Saline 150ml Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Treatment

Resource links provided by NLM:

Further study details as provided by Yonsei University:

Primary Outcome Measures:
  • fatigue scale [ Time Frame: 2 weeks after 10g ascorbic aicd intravenous injection ]

Secondary Outcome Measures:
  • mitochondrial DNA copy number on blood and salivary samples [ Time Frame: 2 weeks after 10g ascorbic aicd intravenous injection ]

Estimated Enrollment: 60
Study Start Date: August 2013
Estimated Study Completion Date: October 2013
Estimated Primary Completion Date: October 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: ascorbic acid 10g/20ml
Normal Saline 130ml+ ascorbic acid 10g/20ml , covered bottle for the blind allocation
Drug: ascorbic acid 10g/20ml
ascorbic acid 10g/20cc intravenous injection for 40mins
Active Comparator: Normal Saline 150ml
Normal Saline 150ml, covered bottle
Drug: Normal Saline 150ml
Normal Saline 150ml intravenous injection for 40mins


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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  1. Adults with above 18 years old and 6 month fatigue duration
  2. Moderate to severe fatigue scale (Brief fatigue inventory-Korean version scale ≥ 4)
  3. Normal limit values in the screening test (White blood cell count, Hemoglobin, Creatinine, SGOT/SGPT, Thyroid stimulating hormone, Urinalysis)
  4. Normal limit values in glucose 6 phosphate dehydrogenase level
  5. Agree the subjects explanation

Exclusion Criteria:

  1. pregnancy and lactation
  2. acute common cold, acute gastroenteritis, uncontrolled diabetes, uncontrolled hypertension, liver disease or renal disease
  3. previous medical history, affectable by high-dose ascorbic acid (gout, renal calculi and glucose 6 phosphate dehydrogenase deficiency)
  4. hypersensitivity from ascorbic acid
  5. vitamin supplement intake until 2 days ago
  6. drug interactions with ascorbic acid ( aspirin, Fe, phenytoin, estrogen, tetracycline, coumarin, corticosteroid)
  7. Do not read a consent fom
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01926132

Contact: Jae Yong Shim, MD 82-2-2019-3480 hope@yuhs.ac

Korea, Republic of
Gangnam Severance Hospital Recruiting
Seoul, Korea, Republic of, 135-720
Contact: Jae Yong Shim, MD    82-2-2019-3480    hope@yuhs.ac   
Sponsors and Collaborators
Yonsei University
  More Information

Responsible Party: Yonsei University
ClinicalTrials.gov Identifier: NCT01926132     History of Changes
Other Study ID Numbers: 3-2012-0154
First Submitted: August 16, 2013
First Posted: August 20, 2013
Last Update Posted: August 20, 2013
Last Verified: August 2013

Keywords provided by Yonsei University:
ascorbic acid
mitochondrial DNA
patient for more than 6 months

Additional relevant MeSH terms:
Signs and Symptoms
Ascorbic Acid
Molecular Mechanisms of Pharmacological Action
Protective Agents
Physiological Effects of Drugs
Growth Substances