Every medicine and vaccine that becomes available today is first tested in clinical trials. Today, more than 100,000 people around the world, with and without medical conditions, are taking part in Pfizer clinical trials. When you volunteer, you help advance medical research for people like you.

But finding a clinical trial that’s right for you can be daunting. PfizerLink is here to make it easy to get involved.

Whether you connect to clinical trials or simply answer some questions about yourself and your health through PfizerLink, you can contribute to scientific learning.



First, create an account and provide your consent to join PfizerLink. After that, you’ll be asked to share some basic details about yourself, including your date of birth and contact information. You’ll also have the option to list any medical conditions you have and medicines you take.

How much you share about your health is your choice. We’ll use the information you provide to try to match you to available Pfizer clinical trials (see below). We’ll also use it to learn about medical conditions and related scientific topics that Pfizer researchers are studying.



We’ll search for available Pfizer clinical trials for which you may be eligible based on the specific information you’ve shared. If you may be eligible for a study that could interest you, we’ll contact you.



You will receive an email with information about the available clinical trial we’ve found. Then a PfizerLink representative, called a Navigator, will call you (if you choose to provide a phone number), or you can call us, to answer questions and talk about next steps. 

If you’re interested and the study still seems like a potential match, PfizerLink will connect you to a study doctor in your area. The study doctor’s team will tell you more about the study and see if you’re eligible to enroll.


Protecting your privacy

Pfizer is committed to maintaining the privacy and confidentiality of every participant in PfizerLink. If you decide to join PfizerLink, you will find more details about PfizerLink’s privacy practices in the informed consent document that you will review and sign. We will regularly review and improve our privacy and security practices to protect your information.

When we publish or share any PfizerLink research results, only summary information will be provided. We will not publish or share results that identify any specific individuals.

Where is PfizerLink connecting people to clinical trials?

We’re currently connecting PfizerLink participants to available Pfizer clinical trials being conducted in 4 cities and their surrounding areas:

  • Houston, TX
  • Los Angeles, CA
  • Miami, FL
  • New York, NY

We plan to expand to other areas in the future. By enrolling in PfizerLink today, you can potentially be connected to available Pfizer clinical trials in the areas listed above and receive updates when we expand.

Who can participate?

Who can participate in PfizerLink?

We’re aiming to enroll about 1 million people who represent the diversity of the United States. This includes people with and without medical conditions.

To join PfizerLink, you must be a resident of one of the 50 states of the United States or the District of Columbia. You must also be at least 18 years old in most states (at least 19 in Nebraska or Alabama and at least 21 in Mississippi).

You may enroll in PfizerLink now even if you don’t live in the 4 specific areas noted in the section above.

Who can participate in a clinical trial?

Anybody can consider participating in clinical research.

Most clinical trials need people who have a specific disease or condition to participate. When you join a clinical trial that’s studying a condition you have, you may help us evaluate a potential treatment for that condition.

There are also clinical trials that need volunteers without a specific disease or condition. As a participant, you might contribute to learnings about a potential vaccine, or about a study medicine before it’s given to people with a condition.

Each clinical trial has its own criteria for who may participate. These are called eligibility criteria.

Examples of eligibility criteria include a person’s:

  • Age and sex
  • Type and/or stage of disease
  • Overall health
  • Personal treatment history

What will happen after PfizerLink connects me to a Pfizer clinical trial?

After a PfizerLink Navigator has connected you, the clinical trial staff at the study location will take you through the next steps to see if you are eligible to join the study.

Informed consent

Informed consent is one of the most important tools to help you understand how your rights, safety, and well-being will be addressed during a study. At your appointment, the study team will review the details of the study with you, including possible risks and benefits, so you will know what to expect.

If you decide to participate, you will be asked to sign an informed consent document that is specific to the study. That will confirm you understand the study and are willing to continue with screening and to take part in the study, if you are eligible.

Informed consent


You’ll meet with the study doctor and their staff to confirm whether you fit the eligibility criteria and are able to participate. This may include a more detailed review of your medical history and a physical exam. It may also include blood work and additional tests related to your condition.

Participating in the study is always voluntary. The decision to join is personal, and it is yours. You can still take part in PfizerLink, even if you choose not to participate in a Pfizer clinical trial.