Was betrifft es? Warum ist das wichtig?

The Pre-Analytic phase encompasses all steps prior to the analysis of Biological Material (BM). It makes up the main part of Sample Workflow, and carries the highest risk regarding ways by which BM is handled, potentially affecting the quality, authenticity and reproducibility of analytical results.

 

Examples on how different factors in the Pre-Analytic phase can impact analytical results inlcude:

  • Donor related factors: fasting status impacts blood lipid profile, medications affect blood molecule concentrations
  • Collection factors: collection time (morning vs afternoon) can affect the level of blood molecules. Collection volume impacts the concentration between blood and additives in the collection tube
  • BM processing factors: centrifugation conditions affect the separation and potential destruction of blood cells (haemolysis)
  • Storage factors: time lapse between collection and freezing of BM affects the integrity/stability of molecules. The same applies for freeze-thaw cycles

Was muss ich befolgen?

Based on the steps included in your Pre-Analytical phase:

  • Review the literature on how Pre-Analytic steps potentially affect the integrity and quality of your BM
  • Make a list of defined risks affecting BM quality. Implement a risk-based approach
  • Use a BIMS to document and monitor pre-analytical steps. A BIMS facilitates the ongoing documentation of quality control results and the recording and management of non-conformities
  • Regularly note down applicable risk-control measures or guidelines and train applicable staff

 

The documentation of non-conformities during the Pre-Analytic phase can explain unexpected deviations in analytical results (e.g. ineffective risk prevention, novel unexpected risks, unintended mistakes during BM processing steps).

Wo kann ich Hilfe anfordern?

Your local CTU can support you with experienced staff regarding this topic

The Swiss Biobanking Platform (SBP) can provide you with support on this topic.

SBP Documents

SOP, Forms and Templates – see in particular

  • Biological material management SOP

 

Publications PubMed

PMID: 18852848

  • Livesey et al. Preanalytical Requirements
Abkürzungen
  • BIMS – Biobank Information Management System
  • BM – Biological Material
  • CTU – Clinical Trials Unit
  • PMID – PubMed ID
  • SBP – Swiss Biobanking Platform
Basic ↦ Biobanking ↦ Definition ↦ Pre-Analytical Phase
Study
Basic

Provides some background knowledge and basic definitions

Basic Monitoring
Basic Drug or Device
Concept

Starts with a study idea

Ends after having assessed and evaluated study feasibility

Concept Drug or Device
Development

Starts with confidence that the study is feasible

Ends after having received ethics and regulatory approval

Development Drug or Device
Set-Up

Starts with ethics and regulatory approval

Ends after successful study initiation

Set-Up Ethics and Laws
Set-Up Quality and Risk
Set-Up Drug or Device
Conduct

Starts with participant recruitment

Ends after the last participant has completed the last study visit

Conduct Drug or Device
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Starts with last study visit completed

Ends after study publication and archiving

Completion Statistics
Completion Drug or Device
Current Path (click to copy): Basic ↦ Biobanking ↦ Definition ↦ Pre-Analytical Phase

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