Alternative Schedule Study For VLA15, a Vaccine Candidate Against Lyme Borreliosis

Completed · Phase 2 · Has a placebo group

Conditions studied: Lyme Borreliosis

In brief

In the Main Study Phase a total of 246 subjects were randomized 2:2:1 into three treatment groups to receive either VLA15 with Alum (lower or higher dose) or Placebo. Main Study Phase vaccinations were administered as intramuscular injections on Day 1, Day 57 and Day 180. In the Booster Phase subjects from the higher dose group who completed their primary immunization schedule according to protocol will be randomized 2:1 to receive an additional higher dose VLA15 vaccination or Placebo at Month 18. Study duration in the Main Study Phase per subject is a maximum of 20 months. Overall study Duration is estimated to be 22 months. Study duration per subject in the Booster Phase is a maximum of approximately 13 months. Study duration per subject in the Main Study Phase and Booster Phase together is estimated to be a maximum of approximately 33 months. Overall study duration (i.e., First-Subject-In to Last-Subject Out/ end of Booster Phase) is estimated to be approximately 37 months.

Key facts

Study ID
NCT03970733
Run by
Pfizer
People needed
246
Starts
2019-07-01
Expected to finish
2022-03-28
Last updated by the study team
2023-04-21

Who can join

Age: 18 and older, up to 65. Sex: any. Healthy volunteers: accepted.

Where it is running

Full record on ClinicalTrials.gov

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