Status:
COMPLETED
Safety Study of a Vitamin E Supplement in Normal Volunteers and Those With Both Allergy and Asthma
Lead Sponsor:
University of North Carolina, Chapel Hill
Collaborating Sponsors:
National Center for Complementary and Integrative Health (NCCIH)
Conditions:
Asthma
Eligibility:
All Genders
18-50 years
Phase:
PHASE1
Brief Summary
Gamma tocopherol (gt) is a naturally occurring form of vitamin E that is found in many foods, and is also commercially available as a vitamin supplement. The purpose of this Phase 1 research study is ...
Detailed Description
This is designed as an open label study of the effect of 600 mg and 1200mg gamma tocopherol (gt), orally administered daily for 8 days, on serum antioxidant levels in asthmatics and healthy volunteers...
Eligibility Criteria
Inclusion
- allergic asthmatic cohort
- Specific allergy to at least one of the following allergen preparations: (House Dust Mite f, House dust mite p, Cockroach, Tree mix, Grass Mix, Weed Mix, Mold Mix 1, Mold Mix 2, Rat, Mouse, Guinea Pig, Rabbit, Cat or Dog) confirmed by positive immediate skin test response.
- Oxygen saturation of \> 94 % at baseline
- Blood pressure within the following parameters (Systolic between 150 - 90,Diastolic between 100-60 mm Hg)
- Moderate or severe persistent asthma according to NHLBI definitions including history of one of the following: 1)Episodic wheezing, chest tightness or shortness of breath consistent with asthma occurring at least once a week that may affect activity;2)Asthma symptoms occurring at night or during sleep at least 1 time per week; 3)measured FEV1 or FVC is \<80% of predicted; OR 4)physician diagnosed moderate or severe persistent asthma which is currently treated or controlled with maintenance medication including moderate or high dose inhaled corticosteroid, or any dose of inhaled corticosteroid and a long-acting inhaled B2-agonist
- Inclusion Criteria- healthy volunteer cohort
- Oxygen saturation \> 94 % at baseline
- Blood pressure within the following parameters (Systolic between 150 - 90, Diastolic between 100-60 mm Hg)
- No active allergies
- No physician diagnosis of asthma since age 6
Exclusion
- Any chronic medical condition considered by the PI as a contraindication to receiving gamma tocopherol, including significant cardiovascular disease, diabetes requiring medication, chronic renal disease, chronic thyroid disease, kidney disease or coagulation defects.
- Use of inhaled steroids, cromolyn or leukotriene inhibitors (montelukast or zafirlukast) which have been used for at least one month are allowed. Patients must be on a stable regimen of maintenance asthma therapy which has not changed in the past month prior to entrance into the study.
- NSAID or ASA use within 48 hours of beginning the study, and inability to suspended use of these medications during the length of the study.
- Use of anticoagulants including warfarin, heparin, or clopidogrel.
- Diagnosis of anemia or abnormal blood counts at screening
- Pregnancy or nursing a baby. As this is a phase I study, the potential risk to a fetus cannot be justified.
- Children will not be included in this study as the potential risk to a growing child cannot be justified.
- Adults age 51 and older are excluded as the potential for concomitant illness in this population increases the risk for confounding the data.
- Known vagal response to venipuncture
- Abnormal PT or PTT values at screening
Key Trial Info
Start Date :
October 1 2006
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
June 1 2007
Estimated Enrollment :
16 Patients enrolled
Trial Details
Trial ID
NCT00386178
Start Date
October 1 2006
End Date
June 1 2007
Last Update
December 21 2010
Active Locations (1)
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1
Center for Environmental Medicine, Asthma and Lung Biology at the University of North Carolina
Chapel Hill, North Carolina, United States, 27599-7310