We expect that the PIONEER study will last for around five years in total.
If you decide to take part, your participation in treatment will last no longer than 21 weeks. (mechanistic sites). The final study visit will take place at 28 weeks of pregnancy and will involve attending an appointment at the Preterm Birth Prevention clinic. Some participants may be asked to complete a questionnaire when their child is two years old. Some participants may also agree to take part in an interview with a researcher at a time convenient to them.