Development↦Biobanking↦Handling of Biological Material↦Sample Workflow
Was betrifft es? Warum ist das wichtig?
Sample-workflow (sample “life-span”) describes a sequence of standardized steps that define how to handle and document Biological Material (BM) from collection to analysis.
Workflow steps include BM:
- Collection
- Transport
- Reception
- Processing
- Storage
- Distribution (e.g. includes shipment)
- Analysis
- Destruction
The aim of workflow steps is to:
- Ensure BM are correctly handled. This guarantees that:
- Researchers are provided with BM of high quality (e.g. sample quality)
- Analytical results are highly credible
- Ensure relevant data is collected and documented in a standardised manner (e.g. data quality)
- Allow for the re-tracing of all workflow steps for quality control purposes (e.g. unexpected/false analytical results can be explained and excluded based on evidence of workflow non-conformities such as BM storage under sub-optimal temperature)
Mehr
Based on the planned analysis, sample workflow steps must be planned prior to the collection of biological material.
Steps might include to define:
- BM of interest (e.g. serum, PBMC, cancer cells)
- Expected BM stability (e.g. RNA is highly unstable, requiring applicable adaptions to workflow steps)
- Required BM processing (e.g. infrastructure, equipment, expertise, cost)
- Ease of collection (e.g. donor consent and disease status, invasive / non-invasive collection procedures, regulatory requirements)
- BM optimal storage conditions and duration
- Processes for standardised documentation
Was muss ich befolgen?
Define sample workflow steps based on your planned analysis.
Ask yourself the following questions:
- What BM do I plan to collect (e.g. tissue, liquid)?
- What is the sample identification and tracking system (e.g. sample coding, BIMS)
- What additional data is needed (e.g. BM characteristics, patient demographics, disease type, donor medication intake)?
- How to collect and confirm donor consent?
- What are the collection procedures (e.g. by surgeon or donor, required collection and storage containers)?
- How are samples transported (e.g. on ice, at room temperature, container type, safety measures, timing)?
- What is an acceptable storage duration (based on a planned analysis)?
- What are destruction guidelines for expired BM?
- What are the sample processing procedures (e.g. slicing, centrifuging, aliquoting)?
- What are the required sample storage conditions (e.g. optimal storage temperature and duration)?
- How are samples protected and retrieved (e.g. storage with access control)?
- What facilities and materials are needed?
- What staff expertise is required?
- What are the expected overall costs (e.g. sample processing requirements, storage duration)?
Mehr
- Document workflow steps in a SOP and/or WI. Include:
- Required facilities (e.g. premises and storage equipment, such as freezers, centrifuge, flow cytometry) and materials (e.g. consumables such as EDTA blood collection tubes, processing solutions)
- Required staff expertise including responsibilities (e.g. who is responsible to implement which workflow steps?).
- Plan quality control steps in order to ensure that workflow steps are correctly implemented (e.g. take a risk based approach)
- Create forms (digital or on paper), where staff can enter sample workflow information in a standardised manner (e.g. date and time of sample collection, sample processing steps, storage conditions)
- In the event of BM destruction ensure destruction procedures are validated and documented
Wo kann ich Hilfe anfordern?
Your local Research Support Centre↧ can assist you with experienced staff regarding this topic
Basel, Departement Klinische Forschung (DKF), dkf.unibas.ch
Lugano, Clinical Trials Unit (CTU-EOC), ctueoc.ch
Bern, Department of Clinical Research (DCR), dcr.unibe.ch
Geneva, Clinical Research Center (CRC), crc.hug.ch
Lausanne, Clinical Research Center (CRC), chuv.ch
St. Gallen, Clinical Trials Unit (CTU), h-och.ch
Zürich, Clinical Trials Center (CTC), usz.ch
The Swiss Biobanking Platform (SBP) can provide you with support on this topic.
SBP Documents
SOPs, Forms and Templates – see in particular
- Biological Material SOP
References
ISO 20387:2018 Biotechnology - Biobanking (access liable to cost)- General Requirements for Biobanking – see in particular section
- 7. Process requirements
Swiss Law
HRO – see in particular articles
- Art. 4 Professional qualifications
- Art. 5 Storage of HRpD and BM in research projects