ReadTheTrial — Clinical Trial Data in Plain English

Recent Clinical Trials

Explore

• Browse by Medical Condition
• Browse by Sponsor
• Currently Recruiting Trials
• Browse by Trial Phase
• Phase 3 Trials (2026)
• Search All Trials

What Are Clinical Trials?

Clinical trials are carefully designed research studies that test new medical approaches in people. They are the primary mechanism through which physicians and scientists determine whether a new treatment -- such as a drug, diet, or medical device -- is safe and effective. Every medication and therapy available today went through clinical trials before being approved for widespread use.

Trials are conducted in phases, each with a distinct purpose. Phase 1 studies enroll 20 to 80 healthy volunteers and focus on safety and dosage. Phase 2 trials expand to 100-300 patients with the target condition to evaluate effectiveness. Phase 3 trials are large-scale pivotal studies with 300 to 3,000 or more participants that compare the treatment against existing options or placebo. Phase 4 trials occur after regulatory approval and monitor long-term safety in broader populations.

How to Read Clinical Trial Data

Clinical trial records on ClinicalTrials.gov contain dense medical and regulatory language. ReadTheTrial translates that language into plain English so patients, caregivers, researchers, and investors can quickly understand what a trial is studying, who can participate, and what outcomes are being measured.

Key elements to look for in any trial record include:

• NCT Number -- The unique identifier assigned by ClinicalTrials.gov (e.g., NCT12345678). This is the universal reference for the study.
• Study Status -- Whether the trial is recruiting, active but not recruiting, completed, or terminated. Only trials marked "Recruiting" are accepting new participants.
• Eligibility Criteria -- The inclusion and exclusion rules that determine who can join. These often specify age ranges, diagnosis requirements, and prior treatment history.
• Primary Outcomes -- The main measurements researchers use to determine whether the treatment works. Understanding these helps you evaluate the trial's goals.
• Sponsor -- The organization funding and managing the trial, typically a pharmaceutical company, academic institution, or government agency.

Understanding the FDA Approval Process

Before a new drug or therapy reaches patients, it must navigate a rigorous multi-year approval process overseen by the U.S. Food and Drug Administration (FDA). The journey begins with preclinical research in laboratories and animal models, followed by an Investigational New Drug (IND) application to the FDA.

If the IND is accepted, the treatment enters human clinical trials across the four phases described above. On average, only about 12% of drugs that enter Phase 1 eventually receive FDA approval. The entire process from initial research to approval typically takes 10 to 15 years.

After successful Phase 3 trials, the sponsor submits a New Drug Application (NDA) or Biologics License Application (BLA) to the FDA. The agency reviews clinical data, manufacturing processes, and proposed labeling. Priority Review and Breakthrough Therapy designations can accelerate this timeline for treatments addressing serious conditions with unmet medical needs.

Why Clinical Trial Participation Matters

Volunteers who participate in clinical trials play a vital role in advancing medical knowledge. Without participants, new treatments cannot be tested, and promising therapies cannot reach the patients who need them. Participation can provide access to cutting-edge treatments before they are widely available, and trial participants receive close medical monitoring throughout the study.

That said, participation involves trade-offs. Potential risks include side effects from experimental treatments, the possibility of receiving a placebo, and the time commitment required for regular clinic visits and monitoring. Always discuss the risks and benefits with your healthcare provider before enrolling in any clinical trial.

To find trials that may be relevant to your condition, browse currently recruiting trials or search by condition or keyword.