NCT04043390

Brief Summary

TB is a major public health problem and the second most common cause of adult death due to infection in many low-income countries. Despite major efforts to de-centralise services, accessibility to diagnosis is still limited, with one third of the 9 million cases occurring each year being missed by national control programmes. New TB diagnostics suitable for use at the point-of-care are emerging. Some of these are intended for screening purposes, as an initial step to identify individuals who may have TB and should undergo further tests for confirmation. These tests may have high sensitivity, but also give false-positive results (low specificity). Other tests aim to be the confirmatory tests for TB (high specificity), but these tests are often more expensive and complex and are only available in hospital laboratories. As these tests have different purposes, it is likely they would work better in combination in a step fashion to optimise their impact and to develop an efficient diagnostic process. Furthermore, as none of the tests is versatile enough to be used in all settings, test combinations will need to consider the health system context in which they would be used. Our aim is to develop and evaluate rapid and accurate diagnostic approaches for TB that facilitate the initiation of appropriate treatment on the same day of the initial consultation in Africa. The objectives are to

  1. 1.Evaluate new diagnostics for TB (including among HIV co-infected individuals) that are suitable at the point-of-care;
  2. 2.Develop diagnostic algorithms that streamline and accelerate the diagnosis of TB, allowing patients to reach clinical management decisions within a single clinic visit;
  3. 3.Determine the impact of using novel point-of-care diagnostic combinations on the proportion of patients correctly initiating TB treatment within 24-48 hours of first attendance; their potential cost effectiveness
  4. 4.Assess the performance of two diagnostic schemes for the diagnosis of TB when compared to culture.
  5. 5.Assess the yield of two diagnostic schemes for the diagnosis of TB when compared to Xpert and
  6. 6.Assess the cost of the two diagnostic schemes compared to Xpert.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,100

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jan 2019

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

December 19, 2018

Completed
1 month until next milestone

Study Start

First participant enrolled

January 21, 2019

Completed
6 months until next milestone

First Posted

Study publicly available on registry

August 2, 2019

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2020

Completed
Last Updated

August 2, 2021

Status Verified

July 1, 2021

Enrollment Period

1.9 years

First QC Date

December 19, 2018

Last Update Submit

July 30, 2021

Conditions

Keywords

Xpert MTB/RIFtuberculosisdiagnosticsXpert UltraTruenat MTBTruenat MTB RIFC Reactive ProteinXpert HIV-1 VLTruenat HIV-1 VLC Reactive Protein QUBE

Outcome Measures

Primary Outcomes (1)

  • Performance of two diagnostic schemes for the diagnosis of TB when compared to culture.

    Sensitivity, specificity, positive and negative predictive values of schemes 1 and 2 to identify patients with TB. Culture will used as the reference standard.

    "up to two months", once culture results become available

Secondary Outcomes (3)

  • Agreement of two diagnostic schemes for the diagnosis of TB when compared to Xpert.

    "up to two months", once culture results become available

  • Time required for diagnosis of the two diagnostic schemes compared to Xpert.

    10 months

  • Cost required for diagnosis of the two diagnostic schemes compared to Xpert.

    10 months

Study Arms (3)

CRP and Xpert ULTRA MTB/RIF

EXPERIMENTAL

Scheme 1 will screen all patients for HIV using rapid tests routinely used by the clinics and a rapid CRP. Patients with CRP \>10 will be further tested using Xpert ULTRA. Individuals with HIV will undergo an HIV VL using Xpert HIV-1 VL.

Diagnostic Test: CRP and Xpert ULTRA MTB/RIFDiagnostic Test: standard test XpertDiagnostic Test: Culture as reference standard

CRP and Molbio Truenat MTB

EXPERIMENTAL

Scheme 2 will screen individuals for HIV and CRP (as in scheme 1) and patients with CRP \>10 will be tested using Molbio Truenat MTB. Individuals with HIV will undergo an HIV VL using Molbio Truenat HIV-VL and individuals with Truenat MTB-positive samples wil be tested with Truenat MTB RIF.

Diagnostic Test: CRP and Molbio Truenat MTBDiagnostic Test: standard test XpertDiagnostic Test: Culture as reference standard

standard test Xpert

NO INTERVENTION

All patients receiving in scheme 1 and scheme 2 will be tested using the standard tests used in the study context. These are rapid HIV tests, Xpert MTB/RIF and culture.

Interventions

A molecular assay to detect M tuberculosis DNA Truenat is currently undergoing the process of endorsement by the WHO.

Also known as: CRP and Truelab MTB
CRP and Molbio Truenat MTB

A molecular assay to detect M tuberculosis DNA ULTRA is already endorsed by the WHO. However the tests are still considered experimental in Nigeria and Ethiopia.

Also known as: CRP and ULTRA
CRP and Xpert ULTRA MTB/RIF
standard test XpertDIAGNOSTIC_TEST

The investigators will use Xpert to compare its agreement with scheme 1 (CRP plus Truenat MTB) and scheme 2 (CRP plus ULTRA).

CRP and Molbio Truenat MTBCRP and Xpert ULTRA MTB/RIF

The investigators will use culture to assess the sensitivity of schemes 1 and 2

CRP and Molbio Truenat MTBCRP and Xpert ULTRA MTB/RIF

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adult with presumptive TB
  • At least one of the following criteria: Cough \> 2-week duration, weight loss, unexplained fever, night sweats or haemoptysis.
  • Willing to participate in the study

You may not qualify if:

  • Age unknown and likely being a minor (looks \<18 years old)
  • Known pregnancy
  • Has received or is receiving anti-TB treatment
  • Already diagnosed with TB.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Zankli Research Centre

Kobape, Nasarawa State, P.M.B 005, Nigeria

Location

Related Publications (1)

  • Inbaraj LR, Daniel J, Sathya Narayanan MK, Srinivasalu VA, Bhaskar A, Scandrett K, Rajendran P, Kirubakaran R, Shewade HD, Malaisamy M, Padmapriyadarsini C, Takwoingi Y. Truenat MTB assays for pulmonary tuberculosis and rifampicin resistance in adults and adolescents. Cochrane Database Syst Rev. 2025 Mar 24;3(3):CD015543. doi: 10.1002/14651858.CD015543.pub2.

MeSH Terms

Conditions

TuberculosisAcquired Immunodeficiency Syndrome

Condition Hierarchy (Ancestors)

Mycobacterium InfectionsActinomycetales InfectionsGram-Positive Bacterial InfectionsBacterial InfectionsBacterial Infections and MycosesInfectionsHIV InfectionsBlood-Borne InfectionsCommunicable DiseasesSexually Transmitted Diseases, ViralSexually Transmitted DiseasesLentivirus InfectionsRetroviridae InfectionsRNA Virus InfectionsVirus DiseasesSlow Virus DiseasesGenital DiseasesUrogenital DiseasesImmunologic Deficiency SyndromesImmune System Diseases

Study Officials

  • Luis E Cuevas, Professor

    Liverpool School of Tropical Medicine

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Model Details: This will be a phase III open randomised diagnostic trial.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 19, 2018

First Posted

August 2, 2019

Study Start

January 21, 2019

Primary Completion

December 31, 2020

Study Completion

December 31, 2020

Last Updated

August 2, 2021

Record last verified: 2021-07

Data Sharing

IPD Sharing
Will not share

Data will be made open access once primary results are published and within 6 months of database lock. Data will be shared with WHO for the purpose of diagnostic endorsement.

Locations