How to Navigate ClinicalTrials.gov

Short Description

Before we start, what is ClinicalTrials.gov?

ClinicalTrials.gov at its core is an updated “registry and results database” regarding clinical studies. People can register to participate in a clinical trial on this website and  also review the submitted results after the study ends. The site is maintained by the National Library of Medicine (NLM) at the National Institutes of Health (NIH). Their goal is to “provide patients, their family members, health care professionals, researchers, and the public with easy access to information on publicly and privately supported clinical studies on a wide range of diseases and conditions.”

Navigating ClinicalTrials.gov

In this article we’ll discuss how to find and view clinical studies and how to learn more about clinical research!

1. Find and view clinical studies

On the home page of ClinicalTrials.gov you will find the below search box. Filling out all the indications will help narrow or widen your search for a clinical trial.

We recommend using the Advanced Search button to narrow your search further. Here you will be able to target your search, specify eligibility criteria, location and more. 

Once you have clicked ‘Search’, the site will take you to a page with a list of clinical trials based on your search criterias. This page displays  studies status, title, conditions, Interventions and locations. When a study’s status is listed as “Recruiting” this indicates that the trial is actively recruiting participants! 

Click on  ‘Studies Title’ to discover further information. We recommend reading the description, outcome measures, eligibility criteria and location before moving forward. From here, you should be able to find a link to the study’s website or study representative’s contact information. Reach out and see if you qualify! 

Additionally, under the ‘Find Studies’ Tab you can view studies by topic, on a map and even search results for clinical trials. 

To learn even more about how to search for studies on ClinicalTrials.gov here

2. Learn more about clinical research:

Click on  ‘About Studies’ to learn more about how clinical studies are conducted and who can participate.

Click on ‘Learn About Studies’ for answers to the below questions:

  • What Is a Clinical Study?

  • Who Conducts Clinical Studies?

  • Where Are Clinical Studies Conducted?

  • How Long Do Clinical Studies Last?

  • Reasons for Conducting Clinical Studies

  • Participating in Clinical Studies

Click on ‘Glossary of Common Site Terms’ to reference words and phrases that are frequently used in clinical studies. . Here are a few terms we find most helpful:

Phase – The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study’s objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.

Observational study – A type of clinical study in which participants are identified as belonging to study groups and are assessed for biomedical or health outcomes. Participants may receive diagnostic, therapeutic, or other types of interventions, but the investigator does not assign participants to a specific interventions/treatment. A patient registry is a type of observational study.

Interventional study (clinical trial) – A type of clinical study in which participants are assigned to groups that receive one or more intervention/treatment (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes. The assignments are determined by the study’s protocol. Participants may receive diagnostic, therapeutic, or other types of interventions.

Principal investigator (PI) – The person who is responsible for the scientific and technical direction of the entire clinical study.

Protocol – The written description of a clinical study. It includes the study’s objectives, design, and methods. It may also include relevant scientific background and statistical information.

References:

Glossary of Common Site Terms. ClinicalTrials.gov. (n.d.). Accessed October 7, 2021, from https://clinicaltrials.gov/ct2/about-studies/learn#ClinicalTrials. 

Learn about clinical studies. ClinicalTrials.gov. (n.d.). Accessed October 7, 2021, from https://clinicaltrials.gov/ct2/about-studies/learn#ClinicalTrials.

Frequently Asked Questions

What is a clinical trial?

A clinical trial is a research study designed to help researchers learn more about health conditions, treatments, prevention methods, or medical products. Clinical trials follow structured protocols and are conducted under regulatory oversight.

Why do people participate in clinical trials?

People participate in clinical trials for many reasons, including contributing to medical research, learning more about their health, or helping advance future treatment options. Participation is always voluntary.

Is participating in a clinical trial safe?

Clinical trials are reviewed and monitored by regulatory authorities and ethics committees to help protect participant safety. Each study includes specific safety guidelines and an informed consent process.

Do I have to participate if I sign up on this website?

No. Submitting your information allows us to notify you about studies that may be relevant to you. You are never required to participate in any study.

What happens after I submit my information?

After you submit your information, you may be contacted if a clinical research study becomes available that matches your interests and basic eligibility. You can decide whether or not to learn more at that time.

Will I be contacted for every study?

No. We only reach out when a study may be relevant based on the information you provided and the study’s eligibility criteria.

Is there a cost to participate in a clinical trial?

Many clinical research studies cover study-related procedures, but details vary by study. All information is provided before any decision to participate is made.

Will I receive treatment if I join a study?

Clinical trials may involve investigational treatments, standard care, or observation only, depending on the study. Participation does not guarantee access to treatment.

Can I leave a clinical trial after joining?

Yes. Participation in a clinical trial is voluntary, and participants can choose to withdraw at any time.

Who runs clinical trials?

Clinical trials are conducted by research institutions, healthcare providers, pharmaceutical or medical device companies, and contract research organizations.

How do I know if a study is right for me?

Each study has specific eligibility criteria and participation requirements. You will receive detailed information before deciding whether to participate.

Why should I provide my contact information?

Providing your contact information allows us to notify you when clinical research opportunities become available that may be relevant to you. There is no obligation to participate.

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