veterinary drugs working group

                VIRTUAL WORKING GROUP MEETING 

Monday, July 26, 2021

1:15 - 3:15 pm

ZOOM  

Presentations and Open Forum will discuss the optimal MS-based analyte identification criteria.  A collaborative study of multiple matrices and analytes is being planned to evaluate analyte identification criteria to minimize the rate of false positives and false negatives.

Goals of the NACRW Veterinary Drugs Working Group

• To identify Multi-Residue/Multi-Class Vet Drug Residue Methods (> 100 analytes) that would meet the needs of regulators. 

• The NACRW Veterinary Drugs Working Group (VDWG) proposes to investigate veterinary drug screening methods which utilize LC-MS instrumentation to detect the presence of one or more regulated compounds at levels below the food safety relevant defined maximum levels.

• Current project: VDR-WG to draft and review the process and agenda for a Collaborative Study in several rounds identifying methods and criteria relevant for goal described above.

2021 MEETINGS   

• January 28, 2021

Virtual meeting

Reviewed study parameters, discussed introductory letter and "Call for Participants"; began developing a list of international laboratories who might participate; prepare protocol for first round.

• March  6, 2021

Virtual meeting

Discussed introductory letter and "Call for Participants"; began developing a list of official control international laboratories who might participate; prepare protocol for first round.

• April 7, 2021

Virtual meeting

Draft introductory letter reviewed; added international, E.U. and U.S. labs to invitation list;  reviewed website content, drafted content for Meeting at a Glance, reviewed collaborative study timeline, began preparing protocol for first round.

2019-2020 MEETINGS 

• July 22, 2019 

Met at NACRW. 

Discuss future work to evaluate the performance of multi-analyte veterinary drug methods useful for regulatory laboratories.

• September 11, 2019

Met at AOAC. New members   identified.

Discuss definition of multi-residue/multi-class methods.

Propose subgroup to develop a collaborative study.

• April 29, 2020

Virtual meeting 

Review performance requirements for multi-residue methods.

Discuss possible collaborative study.

• May 27, 2020

Virtual meeting 

Subgroup reviews proposed collaborative study protocol

• June 29, 2020

Virtual meeting 

Subgroup proposes top 30 analytes to be studied in collaborative study.

• July 23, 2020

Virtual meeting 

Subgroup discusses details of proposed collaborative study including instruments, matrices, number of replicates, laboratories willing to prepare samples and data to be provided by participating laboratories. 

• July 26, 2020

Virtual meeting 

NACRW meeting cancelled.

• August 27, 2020

Virtual meeting 

Subgroup meets to continue discussion of collaborative study specifics.

• October 29, 2020

Virtual meeting 

Subgroup discusses the analytes and concentrations for each matrix.

• December 16, 2020

Virtual meeting 

Subgroup assigns the collaborative study threshold concentrations for Top30 analytes in matrices (eggs, kidneys, meats, milks, livers, fishes).