Reasons to join a trial

• Access to new drugs.
• Because you can't decide what to take.
• More frequent monitoring.
• You will see the same doctor or nurse each time.
• Access to the most advanced tests.
• In order to benefit others.

Reasons not to join a trial

• Because you know what treatment you want.
• You don't want to get a placebo.
• Too many hospital visits.
• You can't stick to the pill-taking timetable.
• Anxieties about unknown side-effects.
• You are pregnant, or want to be, or don't want to use the form of contraception laid down by the study.