Skip to content

Studying the interactions of naturally living bacteria in tuberculosis

Microbiome Interactions in Tuberculosis (MERIT)

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ISRCTN
Registry ID
ISRCTN14110517
Enrollment
40
Registered
2026-07-02
Start date
2026-08-03
Completion date
Unknown
Last updated
2026-07-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pulmonary tuberculosis Infections and Infestations

Interventions

This study is a prospective, longitudinal observational study, conducted at Glenfield Hospital, University Hospitals of Leicester NHS Trust, Leicester, UK. Participants will be recruited from the outp

Sponsors

University of Leicester
Lead Sponsor

Eligibility

Sex/Gender
All
Age
16 Years to 100 Years

Inclusion criteria

Inclusion criteria: 1. Provision of informed consent 2. Aged 16 years or older 3. Engagement with the Leicester Clinical TB service with either suspected TB or active TB disease

Exclusion criteria

Exclusion criteria: 1. Any chronic medical disorder which, in the opinion of the investigator, may either put the subject at risk (because of participating in the study) or may influence the results of the study or the subjects’ ability to participate in the study 2. Donation of blood >450 ml within 3 months of study commencement or during the study (other than for study purposes). 3. Pregnancy or lactation 4. Participation in an interventional clinical study in the 3 months prior to of Visit 1 or participation in a study using interventional medicinal products in the previous 6 months 5. Previous chemotherapy for LTBI in the last 5 years 6. Previous treatment for active TB disease in the last 2 years

Design outcomes

Primary

MeasureTime frame
Microbial diversity and composition measured using richness, Pilous evenness, Berger-Parker dominance, Shannon and Simpson indices to explore alpha diversity and Jaccard, Bray-Curtis and Unifrac measures to explore beta diversity, at before and after anti tuberculosis treatment (the standard duration of anti-tuberculosis treatment is 6 months; however, treatment may be extended to 9 or 12 months if response to treatment is considered unsatisfactory)

Secondary

MeasureTime frame
1. Clinical responses measured using demographics, symptom burden, health-related quality of life (measured using EQ-5D-5L questionnaire), and lung function test with spirometry 2. Microbiological responses measured using smear status, Xpert grade, time to positive culture, molecular and phenotypic drug sensitivity 3. Radiological responses: CXR and CT to determine % lung involvement and evidence of extrapulmonary disease 4. Physiological and metabolic responses measured using physical activity monitoring (PAM), muscle function assessments (MFAs) with handgrip strength and quadriceps strength tests, muscle biopsy, body composition measurements with dual energy x-ray absorptiometry (DEXA) scan and bioelectrical impedance analysis (BIA) Measured at 2 weeks, 8 weeks, 16 weeks and 24 weeks after the anti-tuberculosis treatment start date and end of treatment. Participation at 6 months and 12 months after the treatment end date is optional.

Countries

England, United Kingdom

Contacts

Public ContactPranabashis Haldar
ph62@leicester.ac.uk+44 (0)1162583472

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Jul 23, 2026