# Diagnostic Accuracy of CAD4TB and C-reactive Protein Assay as Triage Tests for Pulmonary Tuberculosis

> **NCT04666311** · — · COMPLETED · sponsor: **Klaus Reither** · enrollment: 1400 (actual)

## Conditions studied

- Pulmonary Tuberculosis
- Tuberculosis Diagnosis
- Covid-19
- HIV

## Interventions

- **DIAGNOSTIC_TEST:** Accuracy of CAD4TB and Afinion CRP assay for pulmonary TB
- **DIAGNOSTIC_TEST:** CAD4COVID+WBC and COVID-19 RDT for SARS-CoV-2 infection

## Key facts

- **NCT ID:** NCT04666311
- **Lead sponsor:** Klaus Reither
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2021-02-15
- **Primary completion:** 2022-04-05
- **Final completion:** 2022-08-11
- **Target enrollment:** 1400 (ACTUAL)
- **Last updated:** 2025-09-22

## Collaborators

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## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04666311

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04666311, "Diagnostic Accuracy of CAD4TB and C-reactive Protein Assay as Triage Tests for Pulmonary Tuberculosis". Retrieved via AI Analytics 2026-06-24 from https://api.ai-analytics.org/clinical/NCT04666311. Licensed CC0.

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