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TuberculosisTRuTHNCT01539005

Tuberculosis Recurrence Upon Treatment With Highly Active Antiretroviral Therapy

An observational study of Tuberculosis, run by Centre for the AIDS Programme of Research in South Africa at 1 site in South Africa.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a cohort observational study investigating the rate of tuberculosis (TB) recurrence in adult patients who have completed TB therapy for Pulmonary TB (PTB) and are on highly active antiretroviral therapy (HAART).The primary objective of this study is to determine the incidence of TB recurrence in patients on… Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Tuberculosis
How many people
402 participants
Where
1 siteSouth Africa
Study dates
Nov 2009to 23 Apr 2014
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Men and women > 18 years of age with documented HIV infection and past TB therapy as part of the SAPIT and START trial will be enrolled.

Who may be able to join

  • Adult patients (> 18 years) who were diagnosed as co-infected with TB and HIV and previously enrolled in the SAPIT and START trials
  • Willing to consent to participate in this study and contribute specimens to the K-RITH repository for future investigations

Who cannot join

  • Patients with Extensively drug-resistant (XDR) TB will not be eligible.
  • Patients who refuse consent

Trial locations and contacts

1 site in 1 country.

South Africa1 site
  • CAPRISA eThekwini Clinical Research Site

    Durban, KwaZulu-Natal, 4001

Other trials in South Africa

About this study

Official title: Is Tuberculosis Recurrence in Treated Tuberculosis-Human Immunodeficiency Virus (HIV) Co-Infected Patients Relapse or Re-infection?

This is a cohort observational study investigating the rate of tuberculosis (TB) recurrence in adult patients who have completed TB therapy for Pulmonary TB (PTB) and are on highly active antiretroviral therapy (HAART).The primary objective of this study is to determine the incidence of TB recurrence in patients on HAART.The study is being conducted at the CAPRISA eThekwini Clinical Research Site (CRS), which is adjacent to the Prince Cyril Zulu Communicable Disease Clinic (PCZCDC), a major urban TB clinic, in Durban, South Africa.No hypotheses will be tested in this study; however, the primary study question will determine the proportion of TB recurrence due to relapse vs. re-infection.The study has enrolled 402 participants

Read the detailed description
  1. Objective: To determine the extent of and reasons for relapse and re-infection in incident cases of tuberculosis (TB) in Human Immunodeficiency Virus (HIV)-infected patients on Highly Active Antiretroviral Therapy (HAART)
  2. Design: A prospective cohort study of patients with HIV previously treated for pulmonary TB and initiated on HAART in the SAPIT (Starting AIDS treatment at three Points in TB treatment) and START (Starting Tuberculosis and Anti-Retroviral Therapy) trials. Each incident case of TB recurrence in this cohort of adult patients on HAART will be investigated to assess whether the infecting mycobacterium is similar to that from the previous infection and whether the immune responses differ in cases of relapse and re-infection.
  3. Population: Men and women 18 years of age with documented HIV infection and past TB therapy as part of the SAPIT and START trial will be enrolled.
  4. Study Procedures: This study will involve 3 years of follow-up of patients who had been initiated on a course of TB therapy as part of the SAPIT and START trials. Upon exit from the SAPIT trial (i.e. 18 months post-TB diagnosis), study patients will be consented and enrolled in this cohort study. Study participants will be seen monthly for the first 3 months and thereafter 3 monthly, for routine clinic visits and ART services. At every visit patients will be screened for TB recurrence clinically, with chest radiograph and, whenever possible, with available TB diagnostics or new diagnostics that are being developed and/or tested.
  5. Study Outcome The primary endpoint of this study will be the development of recurrent TB. TB recurrence as a result of relapse will be defined as isolates of M. tuberculosis from the first and second episodes of TB which cluster in Restriction Fragment Length Polymerization (RFLP) analysis. TB recurrence as a result of re-infection will be defined as isolates from the first and second episode of TB which differ on RFLP analysis. Each study participant who has recurrent TB will be assessed by Interferon (IFN) gamma ELISPOT assay to compare cytotoxic lymphocyte (CTL)immune responses in TB relapse and re-infection.
Conditions
Tuberculosis
Keywords
Recurrence, Tuberculosis
Medical subject headings
Tuberculosis, Recurrence

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Tuberculosis

    The primary endpoint of this study will be development of TB. TB recurrence as a result of relapse will be defined as isolates of M.tuberculosis from the first and second episodes of TB which cluster in Restriction Fragment Length Polymerization analysis. TB recurrence as a result of re-infection will be defined as isolates from the first and second episode of TB which differ on RFLP analysis. To detect TB, patients will have a sputum smear at every study visit. Chest X-Ray and safety bloods are conducted 6-monthly.

    Measured: Tuberculosis case finding will be conducted over a 36 month period. Tuberculosis investigations will be conducted from the date of Enrollment to the date of TB diagnosis based on a positive sputum TB culture

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Feb 2012 (estimated)
  2. Study startNov 2009
  3. Primary completion23 Apr 2014
  4. Study completion23 Apr 2014

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
402 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01539005
Sponsor's protocol ID
CAP005
Acronym
TRuTH
Status last verified
Feb 2017
First submitted
10 Feb 2012
Last updated
2 Feb 2017
Results posted
No
Data monitoring committee
Yes

Publications

  • Fischinger S, Cizmeci D, Shin S, Davies L, Grace PS, Sivro A, Yende-Zuma N, Streeck H, Fortune SM, Lauffenburger DA, Naidoo K, Alter G. A Mycobacterium tuberculosis Specific IgG3 Signature of Recurrent Tuberculosis. Front Immunol. 2021 Sep 22;12:729186. doi: 10.3389/fimmu.2021.729186. eCollection 2021.

    PubMed 34630406

Questions about this trial

What is this clinical trial studying?

An observational study of Tuberculosis, run by Centre for the AIDS Programme of Research in South Africa at 1 site in South Africa.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 2 Feb 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in South Africa. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Tuberculosis (time frame: Tuberculosis case finding will be conducted over a 36 month period. Tuberculosis investigations will be conducted from the date of Enrollment to the date of TB diagnosis based on a positive sputum TB culture). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01539005, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Feb 2017.

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