Purpose and design
- What exact question is the trial designed to answer?
- What is known from earlier research, and what remains uncertain?
- How are participants assigned to groups?
- Will I, the study team, or both know my assignment?
- What is the primary outcome and when is it measured?
Visits and daily life
Request a calendar showing screening, planned visits, remote tasks, procedures, recovery time, and follow-up. Ask what happens when a visit is missed, whether a support person may attend, whether transportation or lodging is offered, and what technology or home storage is needed.
Try the “ordinary Tuesday” test
Ask the coordinator to describe what participation looks like on a typical day and on the most demanding day. That contrast often reveals practical details a summary misses.
Safety and care
- Which risks are known, and which may be unknown?
- Who should I call after hours?
- What symptoms require urgent attention?
- Can I continue my current medicines and routine care?
- What treatment is available for research-related injury, and who pays?
Costs and payment
Clarify what the study pays, what may be billed to insurance, and what you could owe. Ask about parking, travel, meals, childcare, missed work, reimbursements, participation payments, timing, and tax reporting. Do not assume “no-cost study treatment” means every associated expense is covered.
Data, specimens, and results
Ask who can review identifiable records, how data are coded, whether specimens may be stored, whether future research is optional, and how long information is retained. Ask whether clinically relevant findings or overall study results will be returned and on what timeline.
Decision support
Take notes and request documents you can review later. Consider including a trusted person. Discuss medical alternatives with a licensed clinician who knows your history. Clinryx Trials is educational and cannot judge whether a trial is appropriate for you.