Efficacy of Oral Zinc Administration as an Adjunct Therapy in New Pulmonary Tuberculosis (Category I) Patients
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|ClinicalTrials.gov Identifier: NCT00698386|
Recruitment Status : Unknown
Verified June 2008 by Ministry of Science and Technology, India.
Recruitment status was: Recruiting
First Posted : June 17, 2008
Last Update Posted : September 15, 2009
The primary objective of the study is to evaluate the efficacy of oral Zinc administration in new smear positive pulmonary tuberculosis patients. Evidence is available suggesting that zinc deficiency rapidly diminishes antibody- and cell-mediated immune responses in both humans and animals and renders the individual susceptible to a variety of pathogens. This micronutrient has also been found to be useful in the treatment of lung tuberculosis in limited number of patients.
We are conducting this study in category-I patients (As per World Health Organization, Geneva classification of tuberculosis) having lung tuberculosis to see the efficacy and also to see any change in the immunological parameters.
|Condition or disease||Intervention/treatment||Phase|
|Pulmonary Tuberculosis||Dietary Supplement: Zinc supplement Dietary Supplement: Placebo||Phase 3|
Malnutrition is commonly observed in patients with pulmonary tuberculosis. There are reports claiming patients with active pulmonary tuberculosis are malnourished as indicated by diminished visceral proteins, anthropometric indexes, and micronutrient status. Zinc plays role in protecting cells from the damaging effects of free radicals. Zinc supplementation was shown to prevent pulmonary pathology due to hypoxia-induced lung damage in rats. The role of zinc in faster sputum smear conversion has not yet been studied. However, there are reports which confirms, in vitro cellular killing of tubercle bacilli by macrophages after zinc supplementation.
We are investigating oral zinc supplement for its efficacy in TB patients in a "double-blind placebo-controlled randomized clinical trial" fashion. We are conducting this trial in Category-I pulmonary TB Patients (as per RNTCP, Ministry of Health and Family Welfare, Govt.of India), and are assessing the outcome in the form of clinical improvement, sputum conversion and immunological parameters. This is a multi-centric trial sponsored by the Department of Biotechnology, Ministry of Science and Technology, Govt. of India.
Supplements and placebo have been prepared by Cadila pharmaceutical Ltd., India, in the form of tablets. Each micronutrient tablet contains 50mg zinc (as zinc sulphate) in a lactose matrix. The placebo consisted of lactose alone. Supplement and placebo capsules were indistinguishable in appearance both externally and internally. In this clinical trial one tablet of zinc as oral supplement will be given everyday during the entire course in line with the directly observed treatment, short-course (DOTS) strategy recommended by the World Health Organization.
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||150 participants|
|Intervention Model:||Parallel Assignment|
|Official Title:||Efficacy of Oral Zinc Administration as an Adjunct Therapy in Category I Pulmonary Tuberculosis Along With Assessment of Immunological Parameters (Double-blind, Randomized, Placebo-Controlled, Multicenter Clinical Trial|
|Study Start Date :||February 2008|
|Estimated Primary Completion Date :||September 2009|
|Estimated Study Completion Date :||September 2009|
- Dietary Supplement: Zinc supplement
Zinc miconutrient supplements have been prepared by Cadila pharmaceutical Ltd., India, in the form of capsules.Each micronutrient capsule contains 50mg zinc (as zinc sulphate) in a lactose matrix.In this clinical trial one tablet of zinc as oral supplement will be given everyday during the entire course in line with the directly observed treatment, short-course (DOTS) strategy recommended by the World Health Organization.
- Dietary Supplement: Placebo
Placebo have been prepared by Cadila pharmaceutical Ltd., India, in the form of capsules.The placebo consisted of lactose alone. Supplement and placebo capsules were indistinguishable in appearance both externally and internally.
- The time of sputum conversion as well as the early sputum conversion from the baseline between the two groups will be evaluated. [ Time Frame: 6 months ]
- The cure rate will be evaluated as the primary parameter of efficacy. [ Time Frame: 6 months ]
- The relapse at an interval of 6,12,18 and 24 months after the completion of the therapy in patients of category-I pulmonary TB will be compared in both the groups. [ Time Frame: 30 months ]
- Recording of any clinical adverse reactions at anytime during the study for assessment of safety. [ Time Frame: 30 months ]
- An additional secondary efficacy endpoint is the patient's and physician's global assessment of the clinical cure. [ Time Frame: 30 months ]
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): NCT00698386
|Contact: Surendra K Sharma, MD,Ph.Dfirstname.lastname@example.org, email@example.com|
|Contact: Alladi Mohan, MD||91-877-228-7777 ext firstname.lastname@example.org|
|All India Institute of Medcial Sciences-||Recruiting|
|New Delhi, India, 110029|
|Contact: Surendra K Sharma, MD, Ph.D 26-594-415 email@example.com, firstname.lastname@example.org|
|Contact: Alladi Mohan, MD 91-877-228-7777 ext 2256 email@example.com|
|Principal Investigator: Surendra K Sharma, MD, Ph.D|
|Principal Investigator: Alladi Mohan, MD|
|Sub-Investigator: Depender K Mitra, Ph.D|
|Principal Investigator:||Surendra Kumar Sharma||All India Institute of Medical Sciences, New Delhi|