Clinical Trial Basics
Clinical trials offer access to promising new treatments before they're widely available. Understanding how they work can help you decide if a trial is right for you.
β¨ Why Consider a Trial?
- β’ Access to cutting-edge treatments not yet available
- β’ Close monitoring by specialized research teams
- β’ Contribute to advancing treatment for future patients
- β’ Many trial treatments are provided at no cost
Phases of Clinical Trials
Phase 1
Goal: Determine safe dosage and identify side effects.
Small number of patients (20-80). First time in humans. Focus on safety, not effectiveness.
Phase 2
Goal: Test effectiveness and further evaluate safety.
Larger group (100-300). Does the treatment work? What's the response rate?
Phase 3
Goal: Compare new treatment to current standard of care.
Large scale (1,000-3,000). Randomized controlled trials. Required for FDA approval.
Phase 4
Goal: Monitor long-term safety after FDA approval.
Post-marketing surveillance. Detects rare side effects.
How to Find Clinical Trials
ClinicalTrials.gov
The official U.S. database of all registered clinical trials worldwide.
LLS Clinical Trial Support
Free personalized trial searches and nurse navigators.
NCI Cancer Trials
National Cancer Institute's trial finder with detailed information.
Your Treatment Center
Ask your oncologist about trials at your hospital or nearby academic centers.
Questions to Ask About a Trial
- βWhat is the goal of this trial? What phase is it?
- βWhat are the potential benefits and risks?
- βHow often will I need to visit the clinic?
- βWill my insurance cover any costs not covered by the trial?
- βCan I leave the trial if I change my mind?
- βWhat happens if the treatment doesn't work for me?
π‘ Know Your Rights
Participating in a clinical trial is always voluntary. You can leave at any time without affecting your regular care. All trials require informed consentβa detailed document explaining everything about the study.
π Learn More
The National Cancer Institute provides comprehensive guides on understanding clinical trials.
What Are Clinical Trials? at NCI