Hy-PHY study

Dear Colleagues,

We are pleased to share with you the opportunity to take part in the upcoming Hy-PHY study, which follows the success of the Cy-Phy study (results currently being submitted for publication).

Key Information:

• Registration period: December 15, 2025 – February 15, 2026
  → To register your center, please email: promotion.drci@chu-reunion.fr
• Access to e-CRF: Login credentials will be provided before the end of the registration period.
• Patient inclusion period:February 16, 2026 – April 12, 2026.

The study is purely observational, requiring no changes in clinical practice. Centers that already obtained approval for Cy-Phy may be able to use the same authorization, as Hy-PHY is considered a follow-up study.

Participation is open to all centers worldwide, both within and outside Europe.

From a scientific perspective, PSONS is strongly interested in broadening the number of participating centers. By expanding collaboration, we can collect a larger dataset and strengthen the impact of the study.

The study protocol is attached for your reference. We encourage you to consider joining this important initiative. Cy-Phy included 40 centers; together, Hy-PHY can include many more.

With kind regards,
PSONS Research Committee