Notably they trialled first for coeliac autoimmune, but it'll be 2024 before phase 2 results are out for that. About 10 years back there was a similar vaccine which also passed phase 1 trials but failed at phase 2. Phase 1 is basically testing that the vaccine does no harm in small groups and it is phase 2 where they measure if it is actually efficacious and to what level. If it passes phase 2, then get your hopes up.