Cleared Special

K261359 - Stelo Glucose Biosensor System

K261359 is an FDA 510(k) clearance for Stelo Glucose Biosensor System, manufactured by Dexcom, Inc.. The device is a Class 2 Chemistry device with product code SAF cleared through the Special 510(k) pathway after a 27-day FDA review.

K261359 · Dexcom, Inc. · Chemistry device
Download Printable Device Report (PDF) Official FDA 510(k) Summary (PDF)
Optimized for regulatory review, auditing and printing
May 2026
Decision
27d
Days
Class 2
Risk

K261359 is an FDA 510(k) clearance for the Stelo Glucose Biosensor System. Classified as Integrated Continuous Glucose Monitor For Non-intensive Glucose Monitoring, Over-the-counter (product code SAF), Class II - Special Controls.

Submitted by Dexcom, Inc. (San Diego, US). The FDA issued a Cleared decision on May 21, 2026 after a review of 27 days - a notably fast clearance cycle.

This device falls under the Chemistry FDA review panel, regulated under 21 CFR 862.1355 - the FDA in vitro diagnostics and chemistry framework. As a Special 510(k), this submission covers a manufacturer modification to an existing cleared device rather than a new device introduction.

Device pattern: Iterative device modification. Low regulatory complexity profile. This Special 510(k) clearance confirms that the manufacturer's modifications remained within the established regulatory envelope of the original cleared device.

FDA 510(k) Submission Details - K261359

510(k) Number K261359 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received April 24, 2026
Decision Date May 21, 2026
Days to Decision 27 days
Submission Type Special
Review Panel Chemistry (CH)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
62d faster than avg
Panel avg: 89d · This submission: 27d
Pathway characteristics
Modification to existing cleared device.

SAF Device Classification - Class 2, Special Controls

Product Code SAF Integrated Continuous Glucose Monitor For Non-intensive Glucose Monitoring, Over-the-counter
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 862.1355
Definition An Integrated Continuous Glucose Monitoring System (icgm) For Non-intensive Glucose Monitoring Is Intended To Automatically Measure Glucose In Bodily Fluids Continuously Or Frequently For A Specified Period Of Time To Detect Euglycemic And Dysglycemic Glucose Levels In Persons Who Are Not On Insulin And Do Not Have A Significant Risk Of Problematic Hypoglycemia. Icgm Systems For Non-intensive Glucose Monitoring Are Designed To Reliably And Securely Transmit Glucose Measurement Data To Digitally Connected Devices, Excluding Devices Intended To Control The Delivery Of Insulin, And Are Intended To Be Used Alone Or In Conjunction With These Digitally Connected Medical Devices. Device Output Should Not Be Used To Make Treatment Decisions Without Consulting With A Qualified Healthcare Professional.
What this classification means

Class II devices require demonstration of substantial equivalence to a legally marketed predicate device. Clinical trial data may be submitted as supporting evidence to strengthen the substantial equivalence argument. Most Chemistry devices follow this clearance model.

Clinical Evidence

ClinicalTrials.gov
NCT04794478 Completed Interventional Industry-sponsored

Evaluation of the Safety and Effectiveness of the Dexcom Continuous Glucose Monitoring (CGM) System

482
Patients (actual)
12
Sites
Other
Purpose
Open label
Masking
Condition studied Diabetes Mellitus
Study design Single group
Eligibility All sexes · 2 Years+
Sponsor DexCom, Inc. (industry)
Started 2021-02-19 → Primary completion 2021-08-09 → Completed 2021-10-31
Primary outcome
Dexcom Continuous Glucose Monitoring System Performance
Secondary outcome
System Related Adverse Device Effects
Study completed - no results published. This trial concluded in 2021 but has not posted results to ClinicalTrials.gov. Completed studies without public results are common in industry-sponsored device trials; the data may be referenced in the 510(k) Summary PDF or remain unpublished.
View full study on ClinicalTrials.gov
K261359 · Stelo Glucose Biosensor System
Download PDF FDA Summary Dexcom, Inc.