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Clinical trials are research studies that test how well new medical approaches work in people. Each study answers scientific questions and tries to find better ways to prevent, screen for, diagnose, or treat a disease. Clinical trials may also compare a new treatment to a treatment that is already available.

Every clinical trial has a protocol, or action plan, for conducting the trial. The plan describes what will be done in the study, how it will be conducted, and why each part of the study is necessary. Each study has its own rules about who can take part. Some studies need volunteers with a certain disease. Some need healthy people. Others want just men or just women.

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Results 1 - 10 of 7,096 for clinical trials
  1. Clinical Trials (National Library of Medicine)  
    Clinical trials are research studies that test how well new medical approaches work in people. Each study answers ... prevent, screen for, diagnose, or treat a disease. Clinical trials may also compare a new treatment to a ...
  2. Clinical Trials Interactive Tutorial (Patient Education Institute)  
    Clinical Trials Introduction A clinical trial is a research study done to evaluate new treatments in people. Carefully ... of the most common questions. What is a Clinical Trial? A clinical trial is a research study conducted ...
  3. Basic Questions and Answers about Clinical Trials (Food and Drug Administration)  
    Basic Questions and Answers about Clinical Trials ( En Español ) What are clinical trials? Why are clinical trials done? Where can people find out about clinical trials? What types ...
  4. Clinical Trials in Vision Research From the National Institutes of Health (National Eye Institute)  
    ... vision research in the United States. Basics of Clinical Trials What is a clinical trial? Clinical trials are medical research studies in which ... for cataract removal. What are the types of clinical trials? The following four types, or phases, of clinical ...
  5. Clinical Trials (Depression and Bipolar Support Alliance)  
    Clinical Trials Check out We Search Together , a searchable database that connects qualified study participants to researchers conducting ... Brochure (PDF) Learn more about participating in reseach Clinical Trials A clinical trial is a study to evaluate ...
  6. Clinical Trials and Older People From the National Institutes of Health (National Institute on Aging)  
    ... trial is right for you. What is a clinical trial? A clinical trial is a particular type of ... support groups. Why would I participate in a clinical trial? There are many reasons why people choose to ...
  7. Clinical Trials: Information and Options for People with Mood Disorders What are clinical trials? Clinical trials are research studies involving people, which ...
  8. Hepatitis C: Clinical Trials (Department of Veterans Affairs)  
    ... here Treatment Decisions for Veterans and the Public Clinical Trials: Entire Lesson What is a clinical trial? A clinical trial is a research program that ...
  9. ... can volunteer for clinical research: Comparing Alzheimer’s Disease Clinical Trials and Studies Clinical research is medical research involving ... the activity of the drug in other conditions. Clinical Trials Seek Answers Through Rigorous Testing Scientists conducting Alzheimer’s ...
  10. ... aren’t infected with HIV. What is a clinical trial? A clinical trial is a research study done ... effective in people. What is an HIV/AIDS clinical trial? HIV/AIDS clinical trials help researchers find better ...
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