# Prospective, Open-label Study of Seraph 100 in Patients With Prolonged COVID (PC)

> **NCT06637800** · NA · WITHDRAWN · sponsor: **ExThera Medical Corporation**

## Conditions studied

- Long COVID

## Interventions

- **DEVICE:** Seraph® 100 Microbind® Affinity Blood Filter (Seraph 100)

## Key facts

- **NCT ID:** NCT06637800
- **Lead sponsor:** ExThera Medical Corporation
- **Sponsor class:** INDUSTRY
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2025-02-15
- **Primary completion:** 2025-04
- **Final completion:** 2025-04
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** ExThera was not the sponsor. No patients were enrolled.
- **Last updated:** 2026-04-20


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT06637800

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT06637800, "Prospective, Open-label Study of Seraph 100 in Patients With Prolonged COVID (PC)". Retrieved via AI Analytics 2026-06-26 from https://api.ai-analytics.org/clinical/NCT06637800. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*