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Validation of recombinant proteins in Tuberculosis diagnosis

Validation of recombinant PPD in Tuberculosis diagnosis infection

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-7tn2ysw
Enrollment
Unknown
Registered
2021-01-25
Start date
2022-12-12
Completion date
Unknown
Last updated
2025-10-27

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

Conditions

Tuberculosis

Interventions

This is a prospective, randomized, controlled, double-blind clinical study. The participating centers will test two recombinant tuberculins: the Chinese EC test and the Russian Diaskin test, both alon
D12.776.097.025.845
D12.776.828

Sponsors

Universidade Federal do Rio de Janeiro
Lead Sponsor
Universidade Federal do Rio de Janeiro
Collaborator

Eligibility

Age
18 Years to 59 Years

Inclusion criteria

Inclusion criteria: Active tuberculosis group: adults between eighteen (18) and fifty-nine (59) years of age; both sexes; bacteriologically confirmed tuberculosis undergoing treatment; women with a negative urine pregnancy test and/or who are not breastfeeding; provision of the Free and Informed Consent Form. Group control: adults between eighteen (18) and fifty-nine (59) years of age; both sexes; asymptomatic; women with a negative urine pregnancy test and/or who are not breastfeeding; provision of the Free and Informed Consent Form

Exclusion criteria

Exclusion criteria: Active tuberculosis group: patients with diabetes mellitus; malignant neoplasm; immunosuppression with the use of immunobiological; Lupus Erythematosus; Crohn's disease; patients with fibromyalgia syndrome; in use of homeopathic medicine; subjects previously infected with non-tuberculous mycobacteria not indicated or not known; Individuals with documented positive skin test of tuberculin examination in the past (documented or referred by the participant), with report of exacerbated reaction defined as phlyctenule reaction. Control Group: patients with diabetes mellitus; malignant neoplasm; immunosuppression with the use of immunobiological; Lupus Erythematosus; Crohn's disease; patients with fibromyalgia syndrome; in use of homeopathic medicine; individuals previously infected with nontuberculous mycobacteria; individuals reporting contact with pulmonary tuberculosis in the past; individuals who reported treatment for active tuberculosis in the past; individuals with a positive tuberculin skin test in the past (documented or referred by the participant), with a report of an exacerbated reaction defined as a phlyctenule reaction

Design outcomes

Primary

MeasureTime frame
Calculate the sensitivity and specificity of the intradermal tests Diaskin (Russian) and EC (Chinese) in detecting Mycobacterium tuberculosis infection in individuals with active tuberculosis and asymptomatic individuals without known exposure to Mycobacterium tuberculosis in different regions of Brazil

Secondary

MeasureTime frame
Evaluate the performance of the intradermal tests Diaskin (Russian) and EC (Chinese) in comparison to the sensitivity and specificity of the Purified Protein Derivative RT-23 (PPD RT-23) and QuantiFERON-TB Gold Plus (QFT-Plus).

Countries

Brazil

Contacts

Public ContactAfrânio Kritski

Universidade Federal do Rio de Janeiro

kritskia@gmail.com+55-21-997948712

Outcome results

None listed

Source: REBEC (via WHO ICTRP) · Data processed: Jul 19, 2026