JPAC Joint United Kingdom (UK) Blood Transfusion and Tissue Transplantation Services Professional Advisory Committee

Annexe 7:

Requirements for the timing of testing for Hematopoietic Progenitor Cells (HPCs): Minimum standards and good practice

Terminology

HPC-A Peripheral Blood (stem cells, collected by apheresis).
HPC-M Bone marrow (stem cells, collected from bone marrow).
MNC-A Mononuclear cells (collected by apheresis, including starting material for advanced therapy medicinal product (ATMP) manufacture and donor lymphocyte infusions (DLIs)).
HPC-CB Umbilical cord blood.
Mandatory The test is either a regulatory requirement or deemed necessary to ensure regulatory requirements relating to the assessment of donor suitability are met to ensure donor and recipient protection.
Discretionary The test must be performed on certain donors/donations if indicated by medical, social or travel history.
Recommended This test is recommended by an advisory committee or a professional body, but is not a regulatory requirement.
Optional The test is not mandatory and done at the discretion of individual organisations or establishments. This also applies to situations where a mandatory test is repeated at the discretion of individual organisations or establishments.

 

Table 1 - Allogeneic HPC-A, HPC-M

Test Performed on donor, product or both? Test mandatory, discretionary, recommended or optional? Timing of test Notes
ABO + RhD Donor Mandatory Prior to donation Using two independently collected samples; different needlesticks
Mandatory infectious markers Donor Mandatory Within 30 days prior to the donation episode

See Table 9.2

Testing the donor once within the specified timescale is mandatory, repeating the test is optional

Optional At the time of donation or within seven days post donation
Discretionary Additional infectious markers (e.g. Malaria, WNV, T.cruzi) Donor Discretionary Prior to donation, depending on travel history or residential risk Align with JPAC Donor Selection Guidelines
CMV Donor Recommended At donor selection, and
Within 30 days prior to the donation episode
 
Toxoplasma Donor Recommended Within 30 days prior to the donation episode  
EBV Donor Recommended Within 30 days prior to the donation episode  
Pregnancy test Donor Discretionary Seven days prior to starting donor mobilisation regime (G-CSF), and (as applicable) within seven days priot to the initiation of the recipient's preparative regime Applies to all donors of childbearing potential
Haemoglobinopathies Donor Discretionary At the time of donor assessment Applies to those donors thought to be at risk of sickle cell disease and compound haemoglobinopathies
Bacteriology testing Product (processed) Optional Pre-processing  
Mandatory Post-processing  
Product (fresh) Mandatory Post collection  
FBC Donor Mandatory Immediately before every collection for HPC-A; prior to first donation for HPC-M  

 

Table 2 - Autologous HPC-A, HPC-M

Test Performed on donor, product or both? Test mandatory, discretionary or optional? Timing of test Notes
ABO + RhD Donor Optional Prior to donation Due to autologous nature of product, not essential
Mandatory infectious markers Donor Mandatory Within 30 days prior to the donation episode

April 2023: Sample timing currently under review by HTA.

See Table 9.2

Testing the donor once within the specified timescale is mandatory, repeating the test is optional

Optional At the time of donation or within seven days post donation
Discretionary Additional infectious markers (e.g. Malaria, WNV, T.cruzi) Donor Discretionary Prior to donation, depending on travel history or residential risk In selected circumstances based on individual risk assessment, testing may be requested/required. Align with JPAC Donor Selection Guidelines.
Pregnancy test Donor Discretionary 7 days prior to starting donor mobilisation regime (G-CSF), and, as applicable, within 7 days prior to the initiation of the recipient's preparative regime Applies to all donors of childbearing potential
CMV Donor Optional Within 30 days prior to the donation episode In selected circumstances based on individual risk assessment, testing may be requested/required if indicated by donor history
Toxoplasma Donor Optional Within 30 days prior to the donation episode In selected circumstances based on individual risk assessment, testing may be requested/ required if indicated by donor history
EBV Donor Optional Within 30 days prior to the donation episode In selected circumstances based on individual risk assessment, testing may be requested/ required if indicated by donor history
Haemoglobinopathies Donor Discretionary At the time of donor assessment Applies to those donors thought to be at risk of sickle cell disease and compound haemoglobinopathies
Bacteriology testing Product (processed) Optional Pre-processing  
Mandatory Post-processing  
Product (fresh) Mandatory Post collection  
FBC Donor Mandatory Immediately before every collection for HPC-A; prior to first donation for HPC-M  

 

Table 3 - Autologous & Allogeneic MNC-A

Test Performed on donor, product or both? Test mandatory, discretionary, recommended or optional? Timing of test Notes
ABO + RhD Donor (allogeneic) Mandatory Prior to donation Using two independently collected samples; different needlesticks
Donor (autologous) Optional Prior to donation Due to autologous nature of product, not essential
Mandatory infectious markers Donor (allogeneic and autologous) Mandatory At the time of donation or within seven days post donation1 See Table 9.2
Discretionary Additional infectious markers (e.g. Malaria, WNV, T.cruzi) Donor (allogeneic and autologous) Discretionary Prior to donation, depending on travel history or residential risk Align with JPAC Donor Selection Guidelines. For autologous donors in selected circumstances based on individual risk assessment, testing may be requested/required.
CMV Donor (allogeneic) Recommended At donor selection, and
Within 30 days prior to the donation episode
 
Donor (autologous) Optional Within 30 days prior to the donation episode In selected circumstances based on individual risk assessment, testing may be requested/required if indicated by donor history
Toxoplasma Donor (allogeneic) Recommended Within 30 days prior to the donation episode  
Donor (autologous) Optional Within 30 days prior to the donation episode In selected circumstances based on individual risk assessment, testing may be requested/required if indicated by donor history
EBV Donor (allogeneic) Recommended Within 30 days prior to the donation episode  
Donor (autologous) Optional Within 30 days prior to the donation episode In selected circumstances based on individual risk assessment, testing may be requested/required if indicated by donor history
Pregnancy test Donor (allogeneic and autologous) Discretionary Within 7 days prior to collection Applies to all donors of childbearing potential
Haemoglobinopathies Donor Discretionary At the time of donor assessment Applies to those donors thought to be at risk of sickle cell disease and compound haemoglobinopathies
Bacteriology testing Product (processed) Optional Pre-processing  
Mandatory Post-processing  
Product (fresh) Mandatory Post collection  
FBC Donor Mandatory Immediately before every collection  
1 If MNC are collected at the same time as HPC, the same time specified in Tables 1 and 2 apply

 

Table 4 - HPC-CB

Test Performed on mother, product or both? Test mandatory, discretionary, recommended or optional? Timing of test Notes
ABO + RhD Product Mandatory Prior to cryopreservation  
Mandatory infectious markers Mother Mandatory At the time of donation or within seven days post donation See Table 9.2
Product Recommended Prior to release Testing of the maternal sample at the time of donation, including NAT, may be used as a surrogate marker for the product. Testing of the product is recommended but not mandatory.
Discretionary Additional infectious markers (e.g. Malaria, WNV, T.cruzi) Mother Discretionary 0 to +7 days Depending on travel history or residential risk. Align with JPAC Donor Selection Guidelines.
Product Discretionary Prior to release, where applicable
CMV Mother Recommended 0 to +7 days  
Product Recommended Prior to release  
Toxoplasma Mother Recommended 0 to +7 days  
EBV Mother Recommended 0 to +7 days  
Haemoglobinopathies Product Discretionary Prior to release Sample from product or neonatal screen
Bacteriology testing Product Mandatory Post processing, prior to cryopreservation  
FBC Product Mandatory Between the end of collection and pre-processing  

 

Last updated 18/04/2024