We’re sorry, but you are not eligible for this study.

Thanks very much for taking the time to fill out the screening questionnaire. Based on your answers we have unfortunately determined that you are ineligible for this particular clinical trial.

If you chose the answer "Yes" to be contacted about other trials in the future, we will inform you of other upcoming trials for which you may be eligible.

Frequently Asked Questions

Why am I ineligible?

In order to collect the data required from clinical trials, only patients that meet certain criteria can participate. The criteria are different for every trial, including trials involving the same medical condition.

Unfortunately you are not eligible for this particular trial because you do not meet one (or more) of these criteria. However, that does not mean you will be ineligible for other similar trials, and sometimes trials do alter the eligibility criteria if they cannot find enough people to participate.

How will I know if the eligibility criteria changed?

If this happens, and it appears you may now be eligible, we will email you. You can unsubscribe from our mailing list if you do not want to be contacted.

How can I know before filling out the questionnaire whether I’ll be eligible?

For all trials listed on Vital Research there is a section titled “Who Can Participate?” We require that all research centers list as much information here as possible about the eligibility criteria.

Click here to return to the Vital Research website.

Prevail II Research Study at the Tobacco Treatment Research Program