510(k) Report

510(k) · Cleared

Cleared

Simplexa COVID-19 & Flu A/B Direct

K220963510(k) TraditionalCleared Mar 17, 2023350-day reviewClass II21 CFR 866.3981

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Diasorin Molecular, LLC · QOF Multi-Target Respiratory Specimen Nucleic Acid Test Including Sars-Cov-2 And Other Microbial Agents

Cleared on Mar 17, 2023 as substantially equivalent to DEN200031 (Biofire Diagnostics, LLC, 2021) after a 350-day review. Its family tree reaches back 1 generation to 2021. 3 later devices descend from it.

Decided
Mar 17, 2023
Review
350 days
Class
Class II
Product code
QOF
Recalls
None
Predicates
1

Its longest line of descent runs back 1 generation to DEN200031 (2021). 3 later devices descend from it, 2 citing it directly.

Descendants, by year cleared 2025: 1 descendant cleared2026: 2 descendants clearedDEN200031 · BioFire Respiratory Panel 2.1 (RP2.1) · Biofire Diagnostics, LLC · 20212020202220242026
Descendants, by generation 1 generation forward: 2 descendants2 generations forward: 1 descendant DEN200031 · BioFire Respiratory Panel 2.1 (RP2.1) · Biofire Diagnostics, LLC · 20210
  1. Root · 1 generation backDEN200031 BioFire Respiratory Panel 2.1 (RP2.1)Biofire Diagnostics, LLC · 2021
  2. This deviceK220963 Simplexa COVID-19 & Flu A/B DirectDiasorin Molecular, LLC · 2023
  3. Descendant · cites it directly · 1 of its ownK252269 FINDER Flu A&B/SARS-CoV-2 TestBaebies, Inc. · 2026
  4. Descendant · 2 generations on · 0 of its ownK261837 FINDER Flu A&B/SARS-CoV-2 TestBaebies, Inc. · 2026
  5. Descendant · cites it directly · 0 of its ownK242526 Visby Medical Respiratory Health TestVisby Medical, Inc. · 2025

Most influential descendants

Showing 3 of 3 · See all
  • K252269FINDER Flu A&B/SARS-CoV-2 TestBaebies, Inc. · 2026 · cites it directly1descendant
  • K261837FINDER Flu A&B/SARS-CoV-2 TestBaebies, Inc. · 2026 · 2 generations on0descendants
  • K242526Visby Medical Respiratory Health TestVisby Medical, Inc. · 2025 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−1DEN200031BioFire Respiratory Panel 2.1 (RP2.1)Biofire Diagnostics, LLC2021—
0 (this device)K220963Simplexa COVID-19 & Flu A/B DirectDiasorin Molecular, LLC2023—
+1K252269FINDER Flu A&B/SARS-CoV-2 TestBaebies, Inc.2026—
+2K261837FINDER Flu A&B/SARS-CoV-2 TestBaebies, Inc.2026—
+1K242526Visby Medical Respiratory Health TestVisby Medical, Inc.2025—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202510
202620
FIG. 1 — Lineage of K220963, 2021–2026Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in QOF? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

Top candidate predicates for a new QOF device

  1. #1 K241240 Panther Fusion SARS-CoV-2/Flu A/B/RSV Assayscore 17.0 · 2 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) Report

What was it cleared against? (1)

Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.

TypeNumberDeviceApplicantDecidedRecalls
*DEN200031BioFire Respiratory Panel 2.1 (RP2.1)
Summary page 4
…862.2570 Classification Class II Predicate Devices BioFire Respiratory Panel 2.1 (RP2.1) (DEN200031) Intended Use Simplexa COVID-19 & Flu A/B Direct (Catalog Number: MOL4250): The DiaSorin Molecular Simplexa™ COVID-19 & Flu A/B…
Biofire Diagnostics, LLC2021—

Also cleared against DEN200031: 12 other devices →

What descends from it? (3)

2 later devices cite it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K252269FINDER Flu A&B/SARS-CoV-2 TestBaebies, Inc.20261
K242526Visby Medical Respiratory Health TestVisby Medical, Inc.20250

Has anything in its family been recalled? (0 Class I)

No FDA recall names this device.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • Its one ancestor has no recall.
  • Of its descendants, K252269 (Baebies, Inc., 2026) has gone furthest, with 1 descendant of its own.
  • 12 other devices also cite its predicate DEN200031.

How does its category compare?

All QOF devices

QOF Multi-Target Respiratory Specimen Nucleic Acid Test Including Sars-Cov-2 And Other Microbial Agents: FDA decisions, review times, recalls and adverse event reports over 20 years. 2023, this device’s year, is highlighted.

FDA decisions per year · QOF

13in 2025

2021: 12023: 72024: 92025: 132026 (partial year): 8
2007high 13 (2025) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · QOF

178in 2025

2023: 238 days median2024: 147 days median2025: 178 days median2026 (partial year): 128 days median
2007high 238 (2023) · low 147 (2024)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · QOF

2so far in 2026, the most since 2007

2023: 12024: 12025: 12026 (partial year): 2
2007high 2 (2026) · low 0 (2007)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · QOF

10in 2025

2023: 62024: 302025: 10
2007high 30 (2024) · low 0 (2007)2025

MAUDE reports naming product code QOF, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20070—00
20080—00
20090—00
20100—00
20110—00
20120—00
20130—00
20140—00
20150—00
20160—00
20170—00
20180—00
20190—00
20200—00
20211—00
20220—00
2023723816
20249147130
202513178110
202681282—

What is it indicated for?

The DiaSorin Molecular Simplexa™ COVID-19 & Flu A/B Direct is a real-time RT-PCR assay intended for use on the LIAISON® MDX instrument for the in vitro qualitative detection and differentiation of nucleic acid from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), influenza A virus and influenza B virus in nasopharyngeal swabs (NPS) from individuals with signs and symptoms of respiratory tract infection. The Simplexa™ COVID-19 & Flu A/B…

Read the full statement (170 words)

The DiaSorin Molecular Simplexa™ COVID-19 & Flu A/B Direct is a real-time RT-PCR assay intended for use on the LIAISON® MDX instrument for the in vitro qualitative detection and differentiation of nucleic acid from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), influenza A virus and influenza B virus in nasopharyngeal swabs (NPS) from individuals with signs and symptoms of respiratory tract infection.

The Simplexa™ COVID-19 & Flu A/B Direct assay is intended for use as an aid in the differential diagnosis of SARS-CoV-2, influenza A and influenza B infection.

Negative results do not preclude SARS-CoV-2, influenza A or influenza B infection and should not be used as the sole basis for patient management decisions. Positive results do not rule out coinfection with other organisms. Results should be combined with clinical observations, patient history, and epidemiological information.

The Simplexa™ COVID-19 & Flu A/B Direct assay is intended for use by qualified and trained clinical laboratory personnel specifically instructed and trained in the techniques of real-time PCR and in vitro diagnostic procedures.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K220963: Simplexa COVID-19 & Flu A/B Direct.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K220963

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Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026