Publications by authors named "Anne Bollaerts"

Background: The RTS,S/AS01E (RTS,S) malaria vaccine is recommended for children in malaria endemic areas. This phase 2b trial evaluates RTS,S fractional- and full-dose regimens in Ghana and Kenya.

Methods: In total, 1500 children aged 5-17 months were randomized (1:1:1:1:1) to receive RTS,S or rabies control vaccine.

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Article Synopsis
  • The study investigates the efficacy of different fractional-dose regimens of the RTS,S/AS01 malaria vaccine in children, focusing on natural exposure rather than laboratory settings.
  • Conducted across sites in Ghana and Kenya, the trial involved children aged 5-17 months who had received basic vaccinations and compared their responses to various dosing schedules.
  • The primary goal is to evaluate the effectiveness and safety of these fractional doses compared to full doses over a period of 12 months, contributing valuable data to malaria vaccine development.
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Background: Results of an earlier analysis of a trial of the M72/AS01 candidate vaccine against showed that in infected adults, the vaccine provided 54.0% protection against active pulmonary tuberculosis disease, without evident safety concerns. We now report the results of the 3-year final analysis of efficacy, safety, and immunogenicity.

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Objectives: To assess the long-term safety and immunogenicity of the M72/ Adjuvant System (AS01E) candidate tuberculosis (TB) vaccine up to 3 years post-dose 2 (Y3) in human immunodeficiency virus (HIV)-positive (HIV+) and HIV-negative (HIV-) Indian adults.

Methods: This phase II, double-blind, randomised, controlled clinical trial (NCT01262976) was conducted at YRG CARE Medical Centre, in Chennai, India, between January 2011 and June 2015.Three cohorts (HIV+ participants stable on antiretroviral therapy [ART; HIV+ART+], HIV+ ART-naïve [HIV+ART-], and HIV- participants) were randomised (1:1) to receive 2 doses of M72/AS01E (M72/AS01E groups) or saline (control groups) 1 month apart and were followed up toY3.

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Background: A vaccine to interrupt the transmission of tuberculosis is needed.

Methods: We conducted a randomized, double-blind, placebo-controlled, phase 2b trial of the M72/AS01 tuberculosis vaccine in Kenya, South Africa, and Zambia. Human immunodeficiency virus (HIV)-negative adults 18 to 50 years of age with latent M.

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Previous studies have shown that the M72/AS01E candidate tuberculosis vaccine is immunogenic with a clinically acceptable safety profile in healthy and Mycobacterium tuberculosis-infected adults. This phase II, observer-blind, randomised study compared the safety, reactogenicity, and immunogenicity of M72/AS01E in 3 cohorts: tuberculosis-naïve adults (n = 80), adults previously treated for tuberculosis (n = 49), and adults who have completed the intensive phase of tuberculosis treatment (n = 13). In each cohort, 18-59-year-old adults were randomised (1:1) to receive two doses of M72/AS01E (n = 71) or placebo (n = 71) and followed-up until six months post-dose 2.

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Human immunodeficiency virus (HIV)-associated tuberculosis is a major public health threat. We evaluated the safety and immunogenicity of the candidate tuberculosis vaccine M72/AS01 in HIV-positive and HIV-negative Indian adults.Randomized, controlled observer-blind trial (NCT01262976).

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Background: Vaccination that prevents tuberculosis (TB) disease, particularly in adolescents, would have the greatest impact on the global TB epidemic. Safety, reactogenicity and immunogenicity of the vaccine candidate M72/AS01E was evaluated in healthy, HIV-negative adolescents in a TB endemic region, regardless of Mycobacterium tuberculosis (M.tb) infection status.

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Unlabelled: We evaluated the candidate tuberculosis vaccine M72/AS01 in Bacille-Calmette-Guérin (BCG)-vaccinated infants after or concomitantly with Expanded-Programme-on-Immunization (EPI) vaccines.

Methods: In a Phase-II study in The Gambia (NCT01098474), 2 cohorts of 150 BCG-vaccinated infants each were randomized 1:1:1. The 'Outside-EPI' cohort received one or two M72/AS01 doses, or meningitis vaccine, 1-2 months after primary EPI vaccination.

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Article Synopsis
  • - The study aimed to evaluate the safety and immune response of the TB vaccine M72/AS01 in adults with well-controlled HIV undergoing combination antiretroviral therapy (cART).
  • - Participants were randomly assigned to receive either M72/AS01, another vaccine (AS01), or a placebo, with no significant adverse effects or changes in their HIV treatment observed.
  • - Results indicated that M72/AS01 was safe and effectively stimulated a strong immune response, with consistent production of specific T-cells and antibodies throughout the study duration.
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  • A Phase II study evaluated different formulations of a candidate tuberculosis vaccine (M72) combined with various doses of the AS01 Adjuvant System to find the lowest effective dose that is safe and induces strong immune responses.
  • The study involved healthy adults in The Philippines, who received different vaccine combinations and were monitored for six months to assess their immune responses and safety.
  • Results showed all vaccine formulations were safe, with the lowest dose of M72/AS01E (10 μg) demonstrating significant immune responses, leading to its selection for further development.
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Rationale: Tuberculosis (TB) is a major cause of morbidity and mortality worldwide, thus there is an urgent need for novel TB vaccines.

Objectives: We investigated a novel TB vaccine candidate, M72/AS01, in a phase IIa trial of bacille Calmette-Guérin-vaccinated, HIV-uninfected, and Mycobacterium tuberculosis (Mtb)-infected and -uninfected adults in South Africa.

Methods: Two doses of M72/AS01 were administered to healthy adults, with and without latent Mtb infection.

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Background: Two previous trials have suggested that a herpes simplex virus (HSV) type 2 glycoprotein D (gD) vaccine combined with the adjuvants alum and 3'-O-deacylated-monophosphoryl lipid A (MPL) is well tolerated and provides protection against genital herpes disease in women with no preexisting HSV antibody.

Methods: The safety and immunogenicity of this vaccine were evaluated in a large, multicenter, double-blind, randomized, placebo-controlled trial. The effects of sex and preexisting HSV immunity were sought.

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