510(k) · Cleared
ClearedSynchron Systems Methaqualone Reagent
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Beckman Instruments, Inc. · KXS Radioimmunoassay, Methaqualone
Cleared on Mar 4, 1996 as substantially equivalent to K921013 (Syva Co., 1992) and 2 other predicates after an 80-day review. Its family tree reaches back 1 generation to 1992.
- Decided
- Mar 4, 1996
- Review
- 80 days
- Class
- Class II
- Product code
- KXS
- Recalls
- None
- Predicates
- 3
Its longest line of descent runs back 1 generation to K921013 (1992). 3 ancestors in all. No later device cites it as a predicate yet.
- Root · 1 generation backK921013 Syva Emit II Methaqualone AssaySyva Co. · 1992
- This deviceK955676 Synchron Systems Methaqualone ReagentBeckman Instruments, Inc. · 1996
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −1 | K921013 | Syva Emit II Methaqualone Assay | Syva Co. | 1992 | — |
| 0 (this device) | K955676 | Synchron Systems Methaqualone Reagent | Beckman Instruments, Inc. | 1996 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1994 | 2 | 0 |
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 KXS? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
- Candidate predicates for a device like this, rankedin the report
- Recall history across each candidate’s familyin the report
What was it cleared against? (3)
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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K921013 | Syva Emit II Methaqualone AssaySummary page 1…t system (21 CFR 862.3630) Toxicology calibrator (21 CFR 862.3200) Toxicology control (21 CFR 862.3280) 4.0 Predicate Device(s) Emit Il Methaqualone Assay, Syva Company, K921013 Methaqualone Reagent, Diagnostic Reagents, Inc, K940123 Urine Calibrator and Controls, Diagnostic Reagents, Inc., K935101 5.0 Des… | 1992 |
| * | K940123 | Methaqualone Enzyme ImmunoassaySummary page 1…862.3200) Toxicology control (21 CFR 862.3280) 4.0 Predicate Device(s) Emit Il Methaqualone Assay, Syva Company, K921013 Methaqualone Reagent, Diagnostic Reagents, Inc, K940123 Urine Calibrator and Controls, Diagnostic Reagents, Inc., K935101 5.0 Description The SYNCHRON Methaqualone Reagent is an enzyme… | 1994 |
| * | K935101 | Urine Calibrators and Controls ModificationSummary page 1…ce(s) Emit Il Methaqualone Assay, Syva Company, K921013 Methaqualone Reagent, Diagnostic Reagents, Inc, K940123 Urine Calibrator and Controls, Diagnostic Reagents, Inc., K935101 5.0 Description The SYNCHRON Methaqualone Reagent is an enzyme immunoassay reagent test kit for the SYNCHRON Systems and provides… | 1994 |
What descends from it?
No later submission names this one as a predicate yet.
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?
- None of the 3 ancestors has a recall.
How does its category compare?
All KXS devicesKXS Radioimmunoassay, Methaqualone: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · KXS
FDA has decided no KXS device since 2007.
Median 510(k) review, days · KXS
Too few KXS 510(k)s in any year since 2007 to give a median.
Recalls per year · KXS
No recall names KXS since 2007.
Adverse event reports per year · KXS
No MAUDE report names KXS since 2007.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 0 | — | 0 | 0 |
| 2008 | 0 | — | 0 | 0 |
| 2009 | 0 | — | 0 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 0 | — | 0 | 0 |
| 2012 | 0 | — | 0 | 0 |
| 2013 | 0 | — | 0 | 0 |
| 2014 | 0 | — | 0 | 0 |
| 2015 | 0 | — | 0 | 0 |
| 2016 | 0 | — | 0 | 0 |
| 2017 | 0 | — | 0 | 0 |
| 2018 | 0 | — | 0 | 0 |
| 2019 | 0 | — | 0 | 0 |
| 2020 | 0 | — | 0 | 0 |
| 2021 | 0 | — | 0 | 0 |
| 2022 | 0 | — | 0 | 0 |
| 2023 | 0 | — | 0 | 0 |
| 2024 | 0 | — | 0 | 0 |
| 2025 | 0 | — | 0 | 0 |
| 2026 | 0 | — | 0 | — |
What is it indicated for?
The SYNCHRON Systems Methaqualone Reagent, in conjunction with the SYNCHRON System DAT Urine Calibrators, is intended for use in the qualitative determination of Methaqualone in human urine samples. This assay is designed for use with the family of SYNCHRON Systems, which include analyzers such as the SYNCHRON CX®4, CX®4CE, CX4 DELTA, CX5, CX5CE, CX5 DELTA, CX7, and CX7 DELTA Systems.
Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K955676 · printed Nov 4, 2026
Cite this page
510(k) Report. “K955676: Synchron Systems Methaqualone Reagent.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K955676
Report an extraction error
Are you the manufacturer?
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