Advertisement

Topics

Interferon Gamma for Drug Resistant Tuberculosis

2014-08-27 03:59:35 | BioPortfolio

Summary

This study will determine what dose of recombinant interferon-gamma is safe and effective for treating multiple drug-resistant tuberculosis. Recombinant interferon-gamma is a genetically engineered form of a substance normally produced by the body and is used to boost immune function.

Patients 5 years of age and older with multiply drug-resistant tuberculosis may be eligible for this study.

Participants will be admitted to either the NIH Clinical Center in Bethesda, Maryland, the Texas Center for Infectious Diseases in San Antonio or the South Texas Hospital or Valley Baptist Hospital, both in Harlingen, Texas. On admission, patients will have a medical history, physical examination, blood and urine tests, sputum culture, X-rays, pulmonary function tests and a computed tomography (CT) scan. CT produces 3-dimensional images of body tissues and organs in small sections. For the procedure, the patient lies still on a table surrounded by the scanner.

All patients will continue treatment with anti-tuberculosis antibiotics during and after the study period and may elect whether or not to take gamma interferon in addition to the antibiotic. Five patients will receive only antibiotic treatment, and 5 each will receive one of 3 doses (0.025, 0.05 or 0.1 milligrams per square meter of body surface area) of interferon-gamma injected under the skin 3 times a week. The patient or caregiver will be taught to give the injections, which are similar to insulin injections for diabetes.

Patients will be in isolation in the hospital from the start of therapy until sputum samples show no evidence of tuberculosis for 3 consecutive weeks. Following that, they will repeat the tests done on admission (except CT) during follow-up visits (1- to 2-day hospitalizations) at 3, 6, 9, 12, 15, 18 and 24 months after the start of therapy. Patients taking interferon gamma will have blood drawn more frequently (monthly) for the first 6 months, and patients with lung infection will have sputum samples collected more frequently-weekly for the first 3 months or until three consecutive negative samples are obtained and then monthly throughout the course of therapy. Patients with lung infection will also have repeat CT scans at 6 and 12 months while on interferon gamma. In one or two patients on the drug, blood will be drawn frequently following one injection of gamma interferon (just before the injection and again at 0.25, 0.5, 1, 6, 12, 18, 24 and 48 hours after it) to see if a difference in blood levels of the drug can be detected.

Description

This is a phase I/II, controlled, open label, dose escalation study to determine the tolerance, toxicity, and clinical effect of the administration of interferon-gamma on the clinical condition and immune function of patients with multiply drug resistant M. tuberculosis infections (MDRTB). The study drug (interferon gamma) will be administered subcutaneously three times a week at three dose levels (0.025 mg/m(2), 0.05 mg/m(2), 0.1 mg/m(2)) for one year in addition to anti-tuberculous medications, as determined by in vitro sensitivities.

Study Design

Endpoint Classification: Safety/Efficacy Study, Primary Purpose: Treatment

Conditions

Pneumonia

Intervention

Interferon Gamma

Location

National Institute of Allergy and Infectious Diseases (NIAID)
Bethesda
Maryland
United States
20892

Status

Completed

Source

National Institutes of Health Clinical Center (CC)

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:59:35-0400

Clinical Trials [1081 Associated Clinical Trials listed on BioPortfolio]

Interferon-Gamma With Interferon Alpha and Ribavirin for Hepatitis C Non-Responders

When administered simultaneously, interferon-alpha 2b + interferon-gamma result in dramatic antiviral synergy.Ribavirin has shown to enhance interferon-gamma levels in patients with chroni...

Effects of Interferon-Gamma on Cavitary Pulmonary Tuberculosis in the Lungs

This study will evaluate the lung's immune response to mycobacterium tuberculosis (Mtb) infection and will modulate that response with interferon-gamma.

A Pilot Study of Aerosol Interferon-Gamma for Treatment of Idiopathic Pulmonary Fibrosis

Idiopathic pulmonary fibrosis (IPF) is a progressive disease for which there is no effective treatment. Interferon-gamma is a medication that has been used for other lung diseases to decr...

Treatment of Non-Tuberculous Mycobacterial Infections With Interferon Gamma

This is an open label study to determine the effects of the administration of Interferon-gamma on the clinical condition and immune function of patients with severe, treatment refractory n...

Safety and Efficacy of Inhaled Interferon Gamma-1b in Pulmonary MAC Infection

The purpose of this research study is to test the safety and effectiveness of inhaled Interferon gamma-1b (IFN-g 1b), when administered for 48 weeks and in combination with oral antibiotic...

PubMed Articles [1781 Associated PubMed Articles listed on BioPortfolio]

Boosting effect of IL-7 in interferon gamma release assays to diagnose Mycobacterium tuberculosis infection.

A quarter of the world's population is estimated to be infected with Myobacterium tuberculosis (Mtb). Infection is detected by immune response to M. tuberculosis antigens using either tuberculin skin ...

Latent tuberculosis infection is associated with increased unstimulated levels of interferon-gamma in Lima, Peru.

We previously reported increased unstimulated blood levels of interferon-gamma in persons with latent tuberculosis infection (LTBI) in the United States, suggesting enhanced immune activation in LTBI....

Expression Levels of Interferon Regulatory Factor 5 (IRF5) and Related Inflammatory Cytokines Associated with Severity, Prognosis, and Causative Pathogen in Patients with Community-Acquired Pneumonia.

BACKGROUND Community-acquired pneumonia (CAP) is a common disease with significant morbidity and mortality. Interferon regulatory factor 5 (IRF5), which induces type I interferons (IFNs) and cytokines...

Corticosteroid suppression of antiviral immunity increases bacterial loads and mucus production in COPD exacerbations.

Inhaled corticosteroids (ICS) have limited efficacy in reducing chronic obstructive pulmonary disease (COPD) exacerbations and increase pneumonia risk, through unknown mechanisms. Rhinoviruses precipi...

Differential expression of interferon-gamma, IL-4 and IL-10 in peripheral blood mononuclear cells during early pregnancy of the bovine.

Maternal systemic immune response is regulated by conceptus-derived signals through peripheral blood mononuclear cells (PBMCs) via blood circulation during early pregnancy in cattle. In this study, th...

Medical and Biotech [MESH] Definitions

The assay of INTERFERON-GAMMA released from lymphocytes after their exposure to a specific test antigen, to check for IMMUNOLOGIC MEMORY resulting from a previous exposure to the antigen. The amount of interferon-gamma released is usually assayed by an ENZYME-LINKED IMMUNOSORBENT ASSAY.

A type II interferon produced by recombinant DNA technology. It is similar to the interferon secreted by lymphocytes and has antiviral and antineoplastic activity.

The major interferon produced by mitogenically or antigenically stimulated LYMPHOCYTES. It is structurally different from TYPE I INTERFERON and its major activity is immunoregulation. It has been implicated in the expression of CLASS II HISTOCOMPATIBILITY ANTIGENS in cells that do not normally produce them, leading to AUTOIMMUNE DISEASES.

An interferon regulatory factor that recruits STAT1 PROTEIN and STAT2 PROTEIN heterodimers to interferon-stimulated response elements and functions as an immediate-early protein.

A multimeric complex that functions as a ligand-dependent transcription factor. ISGF3 is assembled in the CYTOPLASM and translocated to the CELL NUCLEUS in response to INTERFERON signaling. It consists of ISGF3-GAMMA and ISGF3-ALPHA, and it regulates expression of many interferon-responsive GENES.

More From BioPortfolio on "Interferon Gamma for Drug Resistant Tuberculosis"

Advertisement
Quick Search
Advertisement
Advertisement

 

Relevant Topics

Pharmacy
Pharmacy is the science and technique of preparing as well as dispensing drugs and medicines. It is a health profession that links health sciences with chemical sciences and aims to ensure the safe and effective use of pharmaceutical drugs. The scope of...

Tuberculosis TB
Tuberculosis (TB) is an infectious disease caused by bacteria belonging to the Mycobacterium tuberculosis complex. Over nine million new cases of TB, and nearly two million deaths from TB, are estimated to occur around the world every year, and new inf...

Drug Discovery
Clinical Approvals Clinical Trials Drug Approvals Drug Delivery Drug Discovery Generics Drugs Prescription Drugs In the fields of medicine, biotechnology and pharmacology, drug discovery is the process by which drugs are dis...


Searches Linking to this Trial