The vaccine was registered earlier this month by the South African Health Products Regulatory Authority (SAHPRA), paving the way for large-scale importation and commercial distribution.
More than 3 million cases of complicated UTIs are recorded annually in the United States, and treatment failure affects up to one-third of patients.
The acquisition comes as GSK intensifies its shift toward oncology to offset expected revenue pressure from upcoming patent expirations in its HIV franchise.
CTTQ will also purchase a supply of bepirovirsen for an initial period of five and a half years, while GSK will record product sales from the arrangement, though the companies are not disclosing the financial value of the deal.
The agreement excludes China, Hong Kong, Macau, and Taiwan, where SiranBio will retain rights.
The US Food and Drug Administration granted the therapy Breakthrough Therapy Designation, while the European Medicines Agency awarded it Priority Medicines status.
The medication works as an add-on therapy alongside intranasal corticosteroids for patients whose condition fails to respond adequately to systemic corticosteroids or surgical intervention.
Chronic hepatitis B affects an estimated 3.2 million people in Europe alone and more than 250 million people globally.
The UK Health Security Agency (UKHSA) has launched a targeted vaccination programme, beginning with students residing at the University of Kent.
The FDA based its approval decision on data from a global Phase IIIb clinical trial demonstrating Arexvy’s effectiveness in the younger adult population.