Screening first
Screening usually reviews eligibility: history, medications and tests named in the protocol. It is a gate, not a commitment to finish the whole study.
Baseline as a starting line
Baseline measurements are taken after someone is eligible and before the study product or comparison begins. Later results are compared with this starting line.
Why both matter
Mixing them up can make a calendar look denser than it is. Knowing which visit does which job helps you plan time off work.
Talk with the study team
Only the study team can say what your calendar requires. These notes explain the usual pattern, not any one study.
Prefitara is an information website, not a medical provider, research sponsor, study site, or recruiter. We never recruit for studies, arrange visits, or refer you to research sites, and we keep your details to ourselves. Treat every guide as general information rather than medical, legal, or financial advice.