SynthesisThe lancet. HIV2021
Isoniazid preventive therapy plus antiretroviral therapy for the prevention of tuberculosis: a systematic review and meta-analysis of individual participant data.
Synthesis in The lancet. HIV, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 5 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
43 citing papers in PubMed, 5 syntheses or guidelines pooled it, 62 citations in OpenAlex.
- Programmatic effectiveness of tuberculosis preventive treatment for people with HIV in six high-tuberculosis-burden countries (PROTECT): a prospective cohort study and meta-analysis.The lancet. HIV · 2026Pooled it
- Pooled it
- Pooled it
- Isoniazid use, effectiveness, and safety for treatment of latent tuberculosis infection: a systematic review.Revista da Sociedade Brasileira de Medicina Tropical · 2024Pooled it
- Tuberculosis preventive therapy for people living with HIV: A systematic review and network meta-analysis.PLoS medicine · 2021Pooled it
- Hepatotoxicity Among People With HIV and Receiving Isoniazid Preventive Therapy in Pregnancy and Postpartum: The Role of Antiretroviral Regimen and Pharmacogenetics.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2026Trial
- An evaluation of a choice architecture-based intervention on prescribing of TB preventive treatment to people living with HIV in southern Africa (the CAT study): a cluster-randomised trial.BMJ global health · 2025Trial
- Comparison of QuantiFERON Gold In-Tube Versus Tuberculin Skin Tests on the Initiation of Tuberculosis Preventive Therapy Among Patients Newly Diagnosed With HIV in the North West Province of South Africa (the Teko Study): A Cluster Randomized Trial.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2024Trial
- Mid-level managers' perspectives on implementing isoniazid preventive therapy for people living with HIV in Ugandan health districts: a qualitative study.BMC health services research · 2024Trial
- Timing of maternal isoniazid preventive therapy on tuberculosis infection among infants exposed to HIV in low-income and middle-income settings: a secondary analysis of the TB APPRISE trial.The Lancet. Child & adolescent health · 2023Trial
- Evaluating systematic targeted universal testing for tuberculosis in primary care clinics of South Africa: A cluster-randomized trial (The TUTT Trial).PLoS medicine · 2023Trial
- Household Contact Tracing With Intensified Tuberculosis and Human Immunodeficiency Virus Screening in South Africa: A Cluster-Randomized Trial.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2022Trial
- A mid-level health manager intervention to promote uptake of isoniazid preventive therapy among people with HIV in Uganda: a cluster randomised trial.The lancet. HIV · 2022Trial
- Tuberculosis after Preventive Therapy in Persons Living with HIV Initiating Antiretroviral Therapy.Emerging infectious diseases · 2026Article
- Effect of prior TB preventive therapy on all-cause mortality during TB treatment among people with HIV/TB in rural eastern Uganda: an observational causal analysis.BMC infectious diseases · 2026Observational
- Is There Value in Performing Yearly Screening for Latent Tuberculosis Infection by Interferon-Gamma Release Assay Among Patients Living With HIV in Non-Endemic Settings?Open forum infectious diseases · 2026Article
- Breakthrough Tuberculosis in a Large Cohort of People Living With HIV on Preventive Treatment.Tropical medicine & international health : TM & IH · 2026Article
- Pediatric Tuberculosis: Unraveling Immunity, Clinical Complexities, and Resource-Driven Disparities in the Pursuit of Prevention.Vaccines · 2026Review
- Tuberculosis Preventive Treatment for Pregnant People With HIV in South Africa: A Modeling Analysis of Clinical Benefits and Risks.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2025Article
- Lower Tuberculosis Incidence Among People With HIV Who Completed Isoniazid Preventive Therapy in Ukraine, a High-Burden Multidrug-Resistant Tuberculosis Setting: A Retrospective Cohort Study.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
16 authors at 9 institutions in 5 countries.
Funding
Abstract
backgroundIsoniazid preventive therapy prevents active tuberculosis in people with HIV, but previous studies have found no evidence of benefit in people with HIV who had a negative tuberculin skin test, and a non-significant effect on mortality. We aimed to estimate the effect of isoniazid preventive therapy given with antiretroviral therapy (ART) for the prevention of tuberculosis and death among people with HIV across population subgroups.
methodsWe searched PubMed, Embase, the Cochrane database, and conference abstracts from database inception to Jan 15, 2019, to identify potentially eligible randomised trials. Eligible studies were trials that enrolled HIV-positive adults (age ≥15 years) taking ART who were randomly assigned to either daily isoniazid preventive therapy plus ART or ART alone and followed up longitudinally for outcomes of incident tuberculosis and mortality. We approached all authors of included trials and requested individual participant data: coprimary outcomes were relative risk of incident tuberculosis and all-cause mortality. We did a single-stage meta-analysis of individual participant data using stratified Cox-proportional hazards models. We did prespecified subgroup analyses by sex, CD4 cell count, and evidence of immune sensitisation to tuberculosis (indicated by tuberculin skin test or interferon-γ release assays [IGRAs]). We also assessed the relative risk of liver injury in an additional prespecified analysis. This study is registered with PROSPERO, CRD42019121400.
findingsOf 838 records, we included three trials with data for 2611 participants and 8584·8 person-years of follow-up for the outcome of incident tuberculosis, and a subset of 2362 participants with 8631·6 person-years of follow-up for the coprimary outcome of all-cause mortality. Risk for tuberculosis was lower in participants given isoniazid preventive therapy and ART than participants given ART alone (hazard ratio [HR] 0·68, 95% CI 0·49-0·95, p=0·02). Risk of all-cause mortality was lower in participants given isoniazid preventive therapy and ART than participants given ART alone, but this difference was non-significant (HR 0·69, 95% CI 0·43-1·10, p=0·12). Participants with baseline CD4 counts of less than 500 cells per μL had increased risk of tuberculosis, but there was no significant difference in the benefit of isoniazid preventive therapy with ART by sex, baseline CD4 count, or results of tuberculin skin test or IGRAs. 65 (2·5%) of 2611 participants had raised alanine aminotransferase, but data were insufficient to calculate an HR.
interpretationIsoniazid preventive therapy with ART prevents tuberculosis across demographic and HIV-specific and tuberculosis-specific subgroups, which supports efforts to further increase use of isoniazid preventive therapy with ART broadly among people living with HIV.
fundingNational Institutes of Health and National Institute of Allergy and Infectious Diseases.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.