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Portraits of diverse people

Follow Up Studies

Study Follow-up

Some participants may be invited to participate in follow-up studies. You may be invited to the follow-up study because you have a specific condition or gene of interest, or you may be invited to participate as a control (a person who does not have the condition or gene of interest). The level of involvement in these studies can vary from filling out a questionnaire to giving another blood sample, having a physical examination, or diagnostic tests.

If you are invited to a follow-up study, you will have the study explained to you. You are not required to participate in a follow-up study as all follow up studies are voluntary, therefore, you may choose to participate in some follow-up studies, but not others. We do hope you will participate if asked. Participants just like you are helping us learn more about how genes and the environment interact. If you do agree to participate, you will be asked to sign a consent form for the follow-up study.

Below are a few examples of EPR follow-up studies.

Natural History of Asthma with Longitudinal Environmental Sampling

This study seeks to understand how things in the environment, including bacteria, can affect people with asthma.

People with asthma may be eligible for the study if they are:

Participants are compensated for their time and may receive asthma care and medications at no cost.

To enroll, please call 919-316-4976 or visit

Bodyweight and Puberty

This study seeks to learn if body weight affects when a girl starts puberty.

Girls may be eligible for this study if they:

Participants are compensated for their time.

To enroll, please call: 1-855-696-4347 or visit

Portraits of diverse people


Last Reviewed: April 04, 2018

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