Tuberculosis Clinical Trial
Official title:
Efficacy and Safety Study of Immunomodulator (Mycobacterium w) as an Adjunct Therapy in Category-II Pulmonary Tuberculosis Along With Assessment of Immunological Parameters
The purpose of the study is to study the efficacy and safety of Mycobacterium in treating
patients with lung tuberculosis . Mycobacterium is a strain of bacterium which is used as a
vaccine and an adjuvant drug against leprosy. This agent has also been found to be effective
in the treatment of lung tuberculosis in a limited number of patients.
The researchers are conducting this study in the World Health Organization (WHO) category-II
of lung tuberculosis patients to see the efficacy and also to see any change in
immunological parameters.
Mycobacterium w is a recently introduced immunomodulator, which has been found to be useful
in rapid killing of Mycobacterium leprae. It improves the clearance of Mycobacterium leprae
from the body and is thereby useful in reducing the duration of therapy significantly for
multibacillary leprosy. Mycobacterium w shares an antigen with both Mycobacterium leprae as
well as Mycobacterium tuberculosis. Mycobacterium w is also found to be useful in the
prevention of tuberculosis in experimental animals.
Previous studies on the efficacy of Mycobacterium w as an immunomodulator in pulmonary
tuberculosis patients have shown higher sputum conversion rates in patients given
Mycobacterium w as an adjuvant therapy along with standard anti-tuberculosis treatment. It
has faster and remarkable sputum converting capacity. Similar studies conducted in pulmonary
TB category -II [re-treatment as per Revised National Tuberculosis Control Programme
(RNTCP), Govt. of India] patients have shown improved cure rates.
Mycobacterium w is commercially available under the brand name of "Immuvac" injection in 0.5
ml multi dose vials approved for use as immunomodulator against Mycobacterium leprae in
patients with leprosy. Each vial has 0.5 x 10^9 heat-killed bacilli in a buffered solution.
It is manufactured by Cadila Pharmaceuticals Ltd.; Ahmedabad, Gujarat-382 210, India. In
this clinical trial one dose consists of 0.1 ml given as an intradermal injection, which
contains 10^9 bacilli. A total of 6 doses are given during the Intensive Phase (as per
RNTCP, Govt. of India) of treatment. Two injections on both upper arms on day-0 and
subsequently one injection on days 14, 28, 42 and 56. No injections are given during the
Continuation Phase (as per RNTCP, Govt. of India) of treatment.
As of now, it is not commercially available for use in TB patients as an immunomodulator.
Therefore, the investigators are investigating Mycobacterium w (Mw) for its efficacy in TB
patients in a "double-blind placebo-controlled randomized clinical control trial" fashion.
We are conducting this trial in Category-II pulmonary TB patients (as per RNTCP, 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 and Cadila Pharmaceuticals
Ltd., India.
;
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment
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