Workshop W5
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| Chair: | Els Dequeker, Michael Morris | ||||
| The recognition of the importance of quality control (QC) has grown progressively in recent years and QC now occupies a place in the foreground. The workshop on quality control will discuss three issues: the OECD guidelines for best practices in quality assurance for molecular genetic testing labs, the forthcoming public database of quality assurance information of European laboratories, and a study of the variability of procedures in the use of commercial kits for CFTR mutation testing. Format of the workshop 3x 20 min presentations, followed by 30 minutes of interactive discussion. | |||||
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Guidelines on best practices in molecular genetic testing laboratories
Elettra Ronchi , Organisation for Economic Cooperation and
Development-Biotechnology Division, Paris, France On the basis of a comprehensive analysis of quality assurance practices
in molecular genetic testing in 18 OECD countries, member countries reached
agreement in 2004 to develop international best practice guidelines. The
decision comes at a time of international convergence of opinion on the need
for a broad international framework that will foster best practice and good
governance in molecular genetic testing laboratories, for example, the
European Parliament called, also in 2004, for an opinion on the need for
legislation in the area. Quality Assurance in European genetic laboratories Testing for genetic diseases has moved progressively from a predominantly
research context into specialized clinical genetic laboratories.
Concomitantly, there has been a greatly-increased attention to issues of
quality control (QC) and assurance (QAu), particularly with respect to EQA
and accreditation. Study of the variability of procedures in the use of commercial kits for CFTR mutation testing Jana Camajova, Anniek Corveleyn, Florence Le Calves, Malgorzata Libik,
Gert Matthijs, Milan Macek Jr., Els Dequeker Cystic fibrosis (CF; OMIM 217900) is one of most commonly tested monogenic inherited disorders in European populations. The EuroGentest consortium (www.eurogentest.org) has decided to setup a pilot project whereby participants of the 2005 Annual CF EQA scheme (www.cfnetwork.be) were asked to report their experience with the routine use of commercial kits in CF DNA diagnostics. This project is a prerequisite for future validation of qualitative commercial diagnostic assays and for drafting of respective guidelines. A total of 125 from 183 contacted CF EQA laboratories (68%) reported their experience with the use of ELUCIGENE (Tepnel), INNO-LiPA (Innogenetics) and OLA CF assay (Abbott Molecular) kits, that comprise the majority of the European diagnostic market in this area. Participants were asked to fill in our questionnaire that was sent within the CF EQA scheme. We were particularly interested in changes of manufacturer-suggested protocols and problems with assay performance. Interestingly, we found that almost 50% of laboratories changed suggested commercial protocols, ie. 32% for ELUCIGENE, 41% for INNO-LiPA and 58% for OLA CF Assay. Most common changes involved modifications of the assay reagent volume, template DNA concentrations, as well as non-compliance with suggested thermocyclers and/or genescanners. Almost 23% of respondents found problems with assay sensitivity and specificity. In this regard it is important to stress that reported problems were not independently validated by us. Based on these preliminary data our next steps will include discussions of problems with respective companies (in particular of repetitive issues), sending feedback to survey participants and preparation of draft guidelines for the validation of qualitative commercial DNA diagnostic assays.
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