Trial reportThe Lancet. Global health2025
Live-attenuated Mycobacterium tuberculosis vaccine, MTBVAC, in adults with or without M tuberculosis sensitisation: a single-centre, phase 1b-2a, double-blind, dose-escalation, randomised controlled trial.
Trial report in The Lancet. Global health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02933281 (MTBVAC Phase 1b/2a Randomized, Double-blind, Active-controlled,Safety, Immunogenicity, and Dose-escalation Study in Adults With and Without Latent Tuberculosis Infection in South Africa), which is not on this map. Cited by 10 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
MTBVAC Phase 1b/2a Randomized, Double-blind, Active-controlled,Safety, Immunogenicity, and Dose-escalation Study in Adults With and Without Latent Tuberculosis Infection in South Africa
Who cites it
10 citing papers in PubMed.
- Review
- Construction and characterization of novelInfection and immunity · 2026Article
- Bacillus Calmette-Guérin (BCG) Vaccination and the Immune-Brain Axis: Implications for Neuroprotection and Neurodegenerative Disease.Vaccines · 2026Review
- Vaccine development againstClinical and experimental vaccine research · 2026Review
- Article
- Research overview-2025: integrating scientific progress to accelerate global tuberculosis elimination.Frontiers in tuberculosis · 2026Article
- Uncovering Insights Into the Biology of Mycobacterium tuberculosis Using Genetic Tools.MicrobiologyOpen · 2025Review
- Article
- Tuberculosis Today: Microbial Insights, Epidemiological Trends, and the Role of Molecular Diagnostics.Pathogens (Basel, Switzerland) · 2025Review
- Progress of anti-tuberculosis drug targets and novel therapeutic strategies.Frontiers in microbiology · 2025Review
Corrections and comments
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Authors and funding
30 authors.
Funding
Abstract
backgroundAn effective adult vaccine is needed to control tuberculosis. We evaluated the safety and immunogenicity of a live-attenuated Mycobacterium tuberculosis vaccine (MTBVAC).
methodsThis single-centre, phase 1b-2a, double-blind, dose-escalation, randomised controlled trial (NCT02933281) enrolled South African adults previously vaccinated with BCG, who were HIV negative and aged 18-50 years, with or without M tuberculosis sensitisation assessed by QuantiFERON-tuberculosis Gold-Plus assay (QFT). Participants were recruited from the local community and randomly allocated (2:1) to receive MTBVAC (5 × 10
findingsBetween Jan 15, 2019, and Sept 7, 2020, 485 participants provided consent and were screened. 144 participants were enrolled and 143 (99%) were vaccinated. BCG was administrated to 47 (33%) of 143 and MTBVAC to 96 (67%) of 143. 12 participants with QFT-negative results and 12 with QFT-positive results were randomly allocated to receive each dose of MTBVAC and 24 participants with QFT-negative results and 24 with QFT-positive results were randomly allocated to receive BCG revaccination. Injection-site pain, discharge, erythema, and swelling increased with MTBVAC dose level. MTBVAC 5 × 10
interpretationMTBVAC at the 5 × 10
fundingCongressionally Directed Medical Research Programmes and US National Institutes of Health.
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