Clinical Trial for Patients in the United States and Canada
Vertex Spring Trial

Contact Us

For further information regarding the SPRING Trial, including how to participate, please visit or call us at 617-341-6777 .

For a more complete list of study inclusion/exclusion criteria, as well as current study site locations in the United States and Canada, please visit

For non-urgent requests for more information about the SPRING Trial, please e-mail us at or visit

This website contains information related to general medical conditions and is provided for educational purposes only. It is not intended to replace discussions with a healthcare provider. All decisions regarding patient care must be made with a healthcare provider, considering the unique characteristics of the patient.

The study described here investigates treatments or outcomes that have not received regulatory approval from a health authority. The information presented here is not meant to convey conclusions of safety or effectiveness. There is no guarantee that the outcome of this trial will result in approval by a regulatory authority. The information about the SPRING Trial used in this website comes from