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What is a Clinical Trial?
Clinical Trial Studies are scheduled in Phases according to what question is being answered regarding a drug, test or treatment.
Phase 1
In Phase 1 (Phase I) Clinical Trials, a new drug is tested to evaluate its Safety for the first time.
- Few Patients (20 - 80)
- Find Safe Dosage of Drug
- Identify Side Effects
- Safe?
Phase 2
Phase 2 (Phase II) Clinical Trials study whether a drug is Safe and Effective
- Larger Number of Patients (100 - 300)
- Identify Short Term Side Effects
- Safe?
- Effective?
Phase 3
Phase 3 (Phase III) Clinical Trials further evaluate whether a drug is Safe and Effective and Compare it to Traditional Treatments currently on the market.
- Larger Groups of Patients (1,000 - 3,000)
- Compare to Other Threapies
- Identify / Monitor Side Effects
- Safe?
- Effective?
Phase 4
Phase 4 (Phase IV) Clinical Trials study Post-Marketing Information about the Drug / Therapy.
- Compare to Other Threapies
- Identify / Monitor Side Effects
- Further Evaluate Safety
- Further Evaluate Efficacy
- Risks?
- Benefits?
- Optimal Use of the Drug / Therapy
Clinical Trials for Adults
Alternative / Complementary Therapy
Drug / Medication Treatments
Stem Cell Transplant
Testing / Diagnosis
Treatment Trends - Observational
Clinical Trials for Pediatric Patients / Children / Kids
References
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