Studies how tuberculosis develops over time in people with active or latent infection
Collects blood and other samples from people with tuberculosis to study how the disease progresses.
Plain-language title generated from the registry record
Registry title: Training Protocol on the Natural History of Tuberculosis
Key facts
- Where
- Bethesda, United StatesSee the site
Could this be for you?
Answer for yourself. This is not a decision: only the study team can say whether you can take part.
- Are you between 2 and 100 years old?
Source: NCT01212003, who can take part
Where in United States
- National Institutes of Health Clinical CenterBethesda, United StatesTaking people
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Trial details
- Who runs it
- National Institute of Allergy and Infectious Diseases (NIAID)
- Trial code
- NCT01212003
- Record updated
- 10 November 2026
- Original description
Background:Read full original descriptionShow less
Natural History of Tuberculosis
Background:
- Tuberculosis (TB) is an infectious disease that affects numerous people worldwide. Researchers are interested in actively recruiting individuals with TB for research and treatment studies.
Objectives:
- To collect blood and other samples to study the natural history of tuberculosis.
Eligibility:
- Individuals 2 years of age and older who have either active or latent tuberculosis.
Design:
* Latent TB patients: Participants will have a single study visit with a physical examination and medical history, and will provide blood samples for testing. * Active TB patients: Participants will have an initial visit with a physical examination and medical history, and will provide blood samples for testing. Participants will also provide sputum samples if required, and may have an optional skin punch biopsy to collect a sample of skin tissue for study. * Treatment for active TB will be provided as part of this protocol. * Active TB participants may be asked to return for study visits every 1-2 months while receiving treatment.
Exclusion: Have been ordered by a court to take TB medications; Are unwilling or unable to comply with prescribed therapy; Are pregnant; EXCLUSION OF SPECIFIC POPULATIONS; Children: Children under the age of 2 are not eligible to enroll. The addition of the very young will not provide enough additional insights to justify the risk to this specific population; Pregnant women: Pregnant women are not eligible for participation in this protocol because the study objectives can be achieved without the enrollment of this population. Enrolled participants who become pregnant during the study will be withdrawn; Patients will be excluded from this study who:; Are incarcerated.
INCLUSION CRITERIA:; FOR ALL PATIENTS; Patients may be included in this study who:; Have or are suspected to have TB infection; Are aged 2 years or older; Have a primary care physician, infectious diseases physician, pulmonologist, or TB specialist outside of the NIH who can provide care of his or her TB infection outside the NIH, provide directly observed therapy (DOT) if necessary, and monitor for side effects and toxicity of TB medications; Are willing to consent to storage of specimens for future research; Able to provide informed consent for themselves or, if they lack the capacity to provide informed consent, have an appropriate Legally Authorized Representative (LAR; the study team will comply with NIH Human Research Protection Program [HRPP] Policy 403); FOR PATIENTS WITH LATENT TB; In addition to the above-described inclusion criteria for all patients, patients may be included in the Latent TB part of this protocol who:; -Have documented evidence of a positive purified protein derivative (PPD) skin test or Interferon-gamma Release Assays (IGRA) test meeting American Thoracic Society (ATS)/CDC guidelines for latent TB; conversion can have occurred at any time; FOR PATIENTS WITH ACTIVE TB; In addition to the above-described inclusion criteria for all patients, patients may be included in the Active TB part of this protocol who:; Have active TB of any drug susceptibility pattern and any site of infection as determined by smear, culture, or biopsy; Have appropriately documented clinically suspicious active TB without definitive microbiology confirmation.