Cleared Traditional

NXSTAGE SYSTEM ONE (K050525) - FDA 510(k) Clearance

Class II Gastroenterology & Urology device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

K050525 · Nxstage Medical, Inc. · Gastroenterology & Urology device
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Jun 2005
Decision
114d
Days
Class 2
Risk

K050525 is an FDA 510(k) clearance for the NXSTAGE SYSTEM ONE. Classified as Dialyzer, High Permeability With Or Without Sealed Dialysate System (product code KDI), Class II - Special Controls.

Submitted by Nxstage Medical, Inc. (Lawrence, US). The FDA issued a Cleared decision on June 24, 2005 after a review of 114 days - within the typical 510(k) review window.

This device falls under the Gastroenterology & Urology FDA review panel, regulated under 21 CFR 876.5860 - the FDA gastroenterology and urology device framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: Standard predicate-based submission. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the Gastroenterology & Urology review framework, consistent with the majority of Class II 510(k) submissions.

View all Nxstage Medical, Inc. devices

Submission Details

510(k) Number K050525 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received March 02, 2005
Decision Date June 24, 2005
Days to Decision 114 days
Submission Type Traditional
Review Panel Gastroenterology & Urology (GU)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
16d faster than avg
Panel avg: 130d · This submission: 114d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code KDI Dialyzer, High Permeability With Or Without Sealed Dialysate System
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 876.5860
What this classification means

Class II devices require demonstration of substantial equivalence to a legally marketed predicate device. This pathway does not require clinical trials - it relies on engineering equivalence and performance data. Most Gastroenterology & Urology devices follow this clearance model.

Regulatory Peers - KDI Dialyzer, High Permeability With Or Without Sealed Dialysate System

All 94
Devices cleared under the same product code (KDI) and FDA review panel - the closest regulatory comparables to K050525.
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K070643 · Gambro, Inc. · Nov 2007
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K032431 · Gambro, Inc. · Sep 2003
BAXTER ARENA HEMODIALYSIS DELIVERY SYSTEM, MODEL 1571278000
K030099 · Baxter Healthcare Corp · Jun 2003
EXELTRA HIGH FLUX DIALYZER, MODELS 150 & 170
K030974 · Baxter Healthcare Corp · Apr 2003