Evaluating outcomes of a new penile implant for transgender men after surgery
Official title: ZEPHYR: A Prospective Study Evaluating Surgical Outcome After Implantation of the Zephyr ZSI 475 FTM Inflatable Penile Implant in the Neophallus After Female-to-male Sex Reassignment Surgery
Run by University Hospital, Ghent · NCT04064671 · Data updated 2026-11-12
This study is testing a new penile implant designed for transgender men to see if it can help improve erectile function after surgery.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years to 100 Years |
| Sex | All |
| Enrollment | 100 (estimated) |
| Sponsor | University Hospital, Ghent Academic / other |
| Locations | 1 site (Ghent, Oost-Vlaanderen) |
| Status | Recruiting |
| Started | September 19, 2017 |
| Main results expected | September 2027 |
| Study ends | December 2029 |
| Registry record updated | January 30, 2024 |
| Trial ID | NCT04064671 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates for this study are female-to-male transgender individuals aged 18 and older who are seeking implantation of the Zephyr ZSI 475 FTM erectile device.
✕Probably not a fit
Patients who may not benefit from this study include biological males and those opting for penile implants other than the Zephyr ZSI 475 FTM.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational study investigates the surgical outcomes following the implantation of the Zephyr ZSI 475 FTM inflatable penile implant in the neophallus of female-to-male transgender individuals. The study aims to address the challenges of achieving erectile function post-phalloplasty, which has been historically difficult due to anatomical differences. The Zephyr implant is specifically designed for this population, featuring a single cylinder and unique anchorage to improve stability and reduce complications. The study will collect data on the effectiveness and safety of this device in enhancing erectile function.
Why it matters
Potential benefit: If successful, this study could significantly improve erectile function and quality of life for transgender men undergoing phalloplasty.
How similar studies have gone: Previous studies have shown mixed results with penile implants in transgender men, but the Zephyr device represents a novel approach specifically tailored for this population.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Voluntarily signed written informed consent according to the rules of Good Clinical Practice (Declaration of Helsinki) and national regulations. * Age ≥ 18 years. * Female-to-male transsexual patient. * Implantation of Zephyr ZSI 475 FTM erectile device. Exclusion Criteria: * Absence of signed written informed consent. * Age \< 18 years. * Biological males. * Patients opting for penile implants other than the Zephyr ZSI 475 FTM.
Where it's running
-
Department of Urology, Ghent University Hospital
Ghent, Oost-Vlaanderen, Belgium Recruiting
Study contacts
- Principal investigator: Piet Hoebeke — Dept. of Urology, Ghent University Hospital
- Study coordinator: Wesley Verla
- Email: wesley.verla@uzgent.be
- Phone: +32 9 332 22 76
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.