Trial of the efficacy of a second dose of BCG vaccination against tuberculosis (Avaliação da eficácia da segunda dose da vacina BCG em escolares)

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN07601391

Enrollment

351951

Registered

2007-03-21

Start date

1996-06-01

Completion date

Unknown

Last updated

2016-10-17

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

Conditions

Tuberculosis and leprosy Infections and Infestations Tuberculosis, leprosy [Hansen disease]

Interventions

The intervention was a single intradermal injection with BCG vaccine produced in Brazil using the Moreaux (Rio de Janeiro) strain. This will be a revaccination as children have a high coverage of BCG

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: School children aged 7 to 14 years in state schools

Exclusion criteria

Exclusion criteria: 1. Children with special needs 2. Children who received more than one BCG vaccination

Design outcomes

Primary

Measure	Time frame
1. Case of tuberculosis 2. Case of leprosy	—

Secondary

Measure	Time frame
1. Tuberculosis by form 2. Leprosy by form	—

Countries

Brazil

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026