Patients With Tuberculosis, Mycobacteriosis or Latent Tuberculosis

Recruiting

• Conditions: Mycobacterial Infection; Tuberculosis (TB)

• Registration Number: NCT06764576
• Lead Sponsor: IRCCS Azienda Ospedaliero-Universitaria di Bologna

Brief Summary

In the last 30 years, tuberculosis (TB) has re-emerged in industrialised countries as a public health, with a decrease in incidence among the resident population and an increase in the burden of immigrants. Therefore, it becomes a priority to implement an effective TB control that relies on both rapid and reliable identification of active infections, with a adequate treatment and surveillance of resistance, but also on the identification of latent tuberculosis infections (ITBL) in populations at higher risk of progression to the active disease, representing a source of infection for the community.

Detailed Description

The study is non-pharmacological and monocentric. Data from patients with clinical/radiological suspicion of mycobacteriosis or tuberculosis will be considered for which they have been received at the OU of Microbiology of the Polyclinic S.Orsola-Malpighi biological samples for mycobacteria research and/or blood samples for immunological investigations for latent tubercular infection in the period January 2012-May 2021 (retrospective part of the study); Data from patients suspected of mycobacteriosis, TB or ITBL from June 2021 to December 2026 (prospective part of the study, duration: 6 years, possibly renewable) will also be considered. The objectives of the study are: 1) Analysis of epidemiological, demographic and clinical aspects of patients with TB, mycobacteriosis non-tubercular or ITBL in the period January 2012-December 2026. 2) Assessment of diagnostic accuracy of the most frequently used methods for Microbiological diagnosis of tuberculosis (TB) or non-tubercular mycobacteriosis and immunological methods for the diagnosis of latent tubercular infection (ITBL). 3) Analysis of the microbiological characteristics (phenotypic and molecular) of MTB and NTM strains. 4) Evaluation of the clinical outcome of patients with ITBL/TB/NTM in treatment and follow-up in the post-treatment period.

Study Timeline

• Study Start: 2021-12-19
• Status Verified: 2024-12
• Study First Submitted: 2025-01-02
• Study First Submitted QC: 2025-01-02
• Last Update Submitted: 2025-01-02
• Study First Posted: 2025-01-08
• Last Update Posted: 2025-01-08
• Primary Completion: 2026-12-31
• Study Completion: 2026-12-31

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 13000

Inclusion Criteria

• age of 18 years or more,
• clinical/radiological suspicion of TB or non-tubercular mycobacteriosis or ITBL for which sent to the Microbiology laboratory at least one biological sample for the mycobacteria and/or a blood sample for the IGRA test;
• Obtaining informed consent.

Exclusion Criteria

• None

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Analysis of epidemiological, demographic and clinical aspects of patients with tuberculosis, mycobacteriosis non-tubercular or latent tubercular infection	from 2021 to 2026	Patients' data with biological samples for mycobacteria research and/or blood samples for immunological investigations for latent tubercular infection and clinical/radiological suspicion of mycobacteriosis or tuberculosis had been colleted from January 2012 to May 2021 (retrospective phase of the study) and from June 2021 to December 2026 (prospective phase of the study). The criteria for diagnosis of TB confirmed microbiologically are: Clinical+Imaging suggestive of tuberculosis disease;microbiological isolation of MTB and/ or molecular test for MTB (Xpert) positive;decision of the clinician to start anti-tuberculosis treatment. The criteria for diagnosing non-tubercular mycobacteriosis are: Clinical+Imaging suggestive of mycobacteriosis;isolation of NTM from at least two sputum samples or one bronchocolagement sample. The criteria for diagnosing ITBL are: positive IGRA and/or positive TST test;absence of clinical/radiological signs of tubercular disease.

Secondary Outcome Measures

Name	Time	Method
Assessment of the diagnostic accuracy of the most frequently used methods for microbiological diagnosis of tuberculosis (TB) or non-tubercular mycobacteriosis and Immunological methods for the diagnosis of latent tubercular infection (ITBL).	from 2021 to 2026	Patients' data with biological samples for mycobacteria research and/or blood samples for immunological investigations for latent tubercular infection and clinical/radiological suspicion of mycobacteriosis or tuberculosis had been colleted from January 2012 to May 2021 (retrospective phase of the study) and from June 2021 to December 2026 (prospective phase of the study). The criteria for diagnosis of TB confirmed microbiologically are: Clinical+Imaging suggestive of tuberculosis disease;microbiological isolation of MTB and/ or molecular test for MTB (Xpert) positive;decision of the clinician to start anti-tuberculosis treatment. The criteria for diagnosing non-tubercular mycobacteriosis are: Clinical+Imaging suggestive of mycobacteriosis;isolation of NTM from at least two sputum samples or one bronchocolagement sample. The criteria for diagnosing ITBL are: positive IGRA and/or positive TST test;absence of clinical/radiological signs of tubercular disease.

Trial Locations

Locations (1)

IRCCS Azienda Ospedaliero-Universitaria di Bologna; 🇮🇹 Bologna, Italy