Factors associated with reactogenicity to an investigational HIV vaccine regimen in HIV vaccine trials network 702

Vaccine. 2024 Aug 13;42(20):125991. doi: 10.1016/j.vaccine.2024.05.039. Epub 2024 May 21.

Abstract

Background: Reactogenicity informs vaccine safety, and may influence vaccine uptake. We evaluated factors associated with reactogenicity in HVTN 702, a typical HIV vaccine efficacy trial with multiple doses and products.

Methods: HVTN 702, a phase 2b/3 double-blind placebo-controlled trial, randomized 5404 African participants aged 18-35 years without HIV to placebo, or ALVAC-HIV (vCP2438) at months 0, 1 and ALVAC-HIV (vCP2438) + Bivalent Subtype C gp120/MF59 at months 3, 6, 12 and 18. Using multivariate logistic regression, we evaluated associations between reactogenicity with clinical, sociodemographic and laboratory variables.

Results: More vaccine than placebo-recipients reported local symptoms (all p < 0.001), arthralgia (p = 0.008), chills (p = 0.012) and myalgia (p < 0.001). Reactogenicity was associated with female sex at birth (ORv = 2.50, ORp = 1.81, both p < 0.001) and geographic region. Amongst vaccine-recipients, each year of age was associated with 3 % increase in reactogenicity (OR = 1.03, p = 0.002).

Conclusion: Vaccine receipt, female sex at birth, older age, and region may affect reactogenicity.

Keywords: Age; Gender; HIV; Reactogenicity; Region; Vaccine.

Publication types

  • Randomized Controlled Trial
  • Clinical Trial, Phase II
  • Clinical Trial, Phase III

MeSH terms

  • AIDS Vaccines* / administration & dosage
  • AIDS Vaccines* / adverse effects
  • AIDS Vaccines* / immunology
  • Adolescent
  • Adult
  • Double-Blind Method
  • Female
  • HIV Infections* / prevention & control
  • Humans
  • Male
  • Vaccine Efficacy
  • Young Adult

Substances

  • AIDS Vaccines