Alfapump® System in the Treatment of Refractory or Recurrent Ascites (POSEIDON Study)
Public ClinicalTrials.gov record NCT03973866. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Alfapump® System in the Treatment of Refractory or Recurrent Ascites: a Multicenter Single Arm Within Subject Crossover Design Pivotal Study (the POSEIDON Study)
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The POSEIDON study is a multi-center, prospective, single arm, crossover pivotal study enrolling up to 70 pivotal cohort patients and up to 45 additional Roll-in patients with refractory or recurrent ascites at up to 20 sites. Pivotal cohort patients will undergo a 3-month pre-implant observation phase after enrollment, followed by implantation of the alfapump and 24 months of post-implant follow up. An analysis will be conducted to support an application for device approval when a minimum of 40 treated pivotal cohort patients are through 6 months.
Study identification
- NCT ID
- NCT03973866
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 110 participants
Conditions and interventions
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Sep 16, 2019 (Actual)
- Primary completion
- Mar 30, 2024 (Estimated)
- Completion
- Jun 30, 2024 (Estimated)
- Last update posted
- Dec 1, 2022
2019 – 2024
United States locations
- U.S. sites
- 13
- U.S. states
- 11
- U.S. cities
- 12
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Mayo Clinic (Arizona) | Phoenix | Arizona | 85054 | — |
| Cedars-Sinai Comprehensive Transplant Center | Los Angeles | California | 90048 | — |
| University of Massachusetts Memorial Medical Center | Worcester | Massachusetts | 01605 | — |
| University of Minnesota | Minneapolis | Minnesota | 55455 | — |
| Mayo Clinic | Rochester | Minnesota | 55905 | — |
| Duke University | Durham | North Carolina | 27705 | — |
| Hospital of the University of Pennsylvania | Philadelphia | Pennsylvania | 19104 | — |
| Medical University of South Carolina | Charleston | South Carolina | 29425 | — |
| Avera Medical Group | Sioux Falls | South Dakota | 57105 | — |
| Methodist Dallas | Dallas | Texas | 75203 | — |
| Baylor University Medical Center (Dallas) | Dallas | Texas | 75246 | — |
| McGuire VA Medical Center | Richmond | Virginia | 23249 | — |
| Medical College of Wisconsin (Froedtert) | Milwaukee | Wisconsin | 53226 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 2 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03973866, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Dec 1, 2022 · Synced Oct 21, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT03973866 live on ClinicalTrials.gov.