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CompletedNCT00005737Updated Mar 16, 2016

Tuberculosis Prophylaxis in the Homeless--A Controlled Trial

An observational study in Lung Diseases and Tuberculosis, sponsored by National Heart, Lung, and Blood Institute (NHLBI). Completed. Open to male participants aged Up to 100 Years. Per ClinicalTrials.gov, last updated 2016-03-16.

Sponsored by National Heart, Lung, and Blood Institute (NHLBI) · Observational

Study type
Observational
Ages
Up to 100 Years
Sex
Male
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Study summary

To conduct a three-arm, randomized controlled trial of methods to improve adherence to biweekly directly observed prophylaxis (DOPT) for tuberculosis in homeless adults in San Francisco.

Read the detailed description

BACKGROUND:

Tuberculosis was on the decline from the mid 1950s until the mid 1980s; however, the United States is now experiencing a resurgence of tuberculosis. In 1992, approximately 27,000 new cases were reported, an increase of about 20 percent from 1985 to 1992. Not only are tuberculosis cases on the increase, but a serious aspect of the problem is the recent occurence of outbreaks of multidrug resistant (MDR) tuberculosis, which poses an urgent public health problem and requires rapid intervention.

Control programs involve two major components. First, and of highest priority, is to detect persons with active tuberculosis and treat them with effective antituberculosis drugs, which prevents death from tuberculosis and stops the transmission of infection to other persons. Treatment of active tuberculosis involves taking multiple antituberculosis drugs daily or several times weekly for at least six months. Failure to take the medications for the full treatment period may mean that the disease is not cured and may recur. If sufficient medications are not prescribed early and taken regularly, the tuberculosis organism can become resistant to the drugs, and the drug resistant tuberculosis then may be transmitted to other persons. Drug resistant disease is difficult and expensive to treat, and in some cases, cannot be treated with available medications.

The second major goal of control efforts is the detection and treatment of persons who do not have active tuberculosis, but who have latent tuberculosis infection. These people may be at high risk of developing active tuberculosis. The only approved treatment modality for preventive therapy requires treatment daily or twice weekly for a minimum of six months, and many patients do not complete the full course of therapy. Public and patient programs are needed to increase the awareness of the problems associated with tuberculosis control.

The study is part of the NHLBI initiative "Behavioral Interventions for Control of Tuberculosis" . The concept for the initiative originated from the National Institutes of Health Working Group on Health and Behavior. The Request for Applications was released in October, 1994.

DESIGN NARRATIVE:

Three approaches were compared for improving adherence to biweekly directly observed prophylaxis for tuberculosis in the homeless: $5 biweekly money incentive (MI) for adherence to DOPT, $5 value biweekly non-money incentive (NMI) for adherence to DOPT, and $5 biweekly money incentive supplemented by a peer community outreach worker (MI + PCOW). The outreach worker assisted subjects with completion of adherence to DOPT. Predictors of adherence to DOPT were examined, including sociodemographic, psychological and behavioral, and environmental factors.

The study completion date listed in this record was obtained from the "End Date" entered in the Protocol Registration and Results System (PRS) record.

02

Conditions studied

  • Lung Diseases
  • Tuberculosis
03

In context

Tuberculosis

1,417 studies on the registry are indexed under Tuberculosis; 208 are open to participants now.

Browse Tuberculosis studies →

Lead sponsor

National Heart, Lung, and Blood Institute (NHLBI) is the lead sponsor of 1,117 studies on the registry; 71 are open to participants now.

Of its 57 completed or terminated interventional studies of FDA-regulated products, 49 (86%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Up to 100 Years
Sexes eligible
Male
Accepts healthy volunteers
No

Eligibility criteria

No eligibility criteria

05

Study design

06

Study locations

No study locations are listed for this record.

07

References and documents

Publications

  • Bangsberg D, Tulsky JP, Hecht FM, Moss AR. Protease inhibitors in the homeless. JAMA. 1997 Jul 2;278(1):63-5. No abstract available. PubMed 9207341 ↗
  • Tulsky JP, Hahn JA, Long HL, Chambers DB, Robertson MJ, Chesney MA, Moss AR. Can the poor adhere? Incentives for adherence to TB prevention in homeless adults. Int J Tuberc Lung Dis. 2004 Jan;8(1):83-91. PubMed 14974750 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 16, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00005737
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
First posted
May 26, 2000
Start date
Sep 1995
Completion
Aug 1999
Last update
Mar 16, 2016

Study contacts

Andrew Moss
University of California
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2004. You cannot join it, but the record below documents what was studied.

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