Leukopak Collection Services
Built for cell therapy development, immunology research, and translational science.
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Apheresis Collection Services
Fresh and frozen human leukopaks, collected to your specifications
Sanguine Bio provides flexible, high-quality leukopak collection services. Whether you need a single leukopak or a recurring supply from donors with defined characteristics, our experienced team manages the entire process - from donor recruitment and apheresis scheduling to processing, QC, and shipment.
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Leukopak at a glance
Built for cell therapy and immunology
- >150 mL
- Apheresis product per collection
- 2–10B
- Total nucleated cells
- >90%
- Post-thaw PBMC viability
- <2 wks
- Typical fresh delivery
IRB-approved protocols (Advarra & WCG)
Fresh or cryopreserved formats
Up to 2B PBMCs from a single donor
The basics
What is a leukopak?
A leukopak (also called a leukapheresis product) is a concentrated preparation of white blood cells collected from a donor via an apheresis procedure. Because the collection is targeted specifically at leukocytes, a single leukopak can yield billions of cells - far more than a standard whole blood draw.
Leukopaks are available fresh (same-day or next-day) or cryopreserved, depending on your downstream application requirements.
Why Sanguine
Why choose Sanguine for leukopak collection?
Apheresis under IRB-approved protocols
All leukopak collections are conducted under IRB-approved protocols with electronic informed consent. Sanguine utilizes Advarra and WCG IRB for oversight, ensuring full regulatory compliance for your research.
Customizable donor profiles
No two studies are alike. We work with you to define inclusion/exclusion criteria and match donors to your exact specifications - including age, sex, BMI, HLA, CMV/EBV status, disease state, and treatment history.
Fresh or frozen delivery
Leukopaks can be shipped fresh for time-sensitive workflows or cryopreserved for long-term storage and repeated use. Fresh leukopaks are typically available within 2 weeks of a signed agreement, with expedited options when collections are already scheduled.
Scalable volume
Sanguine collects leukopaks with yields of up to 150 mL of apheresis product per collection, providing billions of cells per donor. Multi-donor and multi-unit collections can be arranged to meet large-scale manufacturing or research needs.
Quality you can count on
Leukopaks undergo rigorous QC including cell count, viability, and sterility testing. Healthy donor leukopaks routinely yield PBMCs with post-thaw viability exceeding 95% using our validated cryopreservation protocols. Up to 2B PBMCs from a single donor.
Rolling collection schedule
Sanguine schedules apheresis collections on a rolling basis. View upcoming leukopak collection dates and reserve a slot directly through our researcher portal, or request a custom collection tailored to your study.
Customizable donor profiles
Define inclusion and exclusion criteria across the variables that matter to your study.
Age, sex, and BMI
Donor demographics matched to your protocol parameters.
HLA typing
HLA-typed donors available on request for matched studies.
CMV and EBV serostatus
Pre-screened serology for sensitive cell-therapy workflows.
Disease-state or healthy
Healthy normals or verified disease-state donors.
Treatment history
Treatment-naïve or treatment-experienced cohorts.
Ethnicity & demographics
Diverse donor profiles to support representative research.
Leukopak collection options
Standard RUO leukopaks for research, or GMP-grade leukopaks for clinical manufacturing and cell therapy production.
| Feature | Standard Leukopak | GMP Leukopak |
|---|---|---|
| Intended Use | Research Use Only (RUO) | Clinical / Manufacturing |
| Fresh Available | ✓ | ✓ |
| Frozen Available | ✓ | — |
| IRB-Approved | ✓ | ✓ |
| Donor Customization | ✓ | ✓ |
| HLA Typing | On Request | On Request |
| Chain of Custody Documentation | ✓ | ✓ |
| Certificate of Analysis | ✓ | ✓ |
For GMP leukopak inquiries, please contact learnmore@sanguinebio.com.
Process
How leukopak collection works
Define your requirements
Share your donor criteria, required cell yield, preferred format (fresh or frozen), and timeline. Our team will confirm feasibility and provide a quote.
Donor recruitment & screening
Sanguine recruits donors from our extensive network of consented participants. Donors are pre-screened against your inclusion/exclusion criteria and undergo health screening prior to collection.
Apheresis collection
Collections are performed at Sanguine's apheresis facility or a partnered clinical site. Procedures are conducted by trained apheresis nurses under physician oversight.
Processing & QC
Leukopaks undergo immediate processing and quality control testing - including cell count, viability, and sterility assessment. Optional downstream processing such as PBMC isolation is available.
Shipment
Fresh leukopaks are shipped same-day or next-day on ice. Cryopreserved leukopaks are shipped on dry ice via overnight courier with chain-of-custody documentation.
Upcoming Collections
See upcoming collections & reserve your leukopak
Reserving a collection slot ensures you receive a fresh leukopak from a donor matched to your criteria with rapid turnaround. We also regularly schedule collections to fit the needs of a specific study.
FAQ
Frequently asked questions about leukopak collection
What is leukopak collection?
How many cells does a leukopak yield?
Are leukopaks available fresh or frozen?
Are leukopak collections IRB-approved?
Can I specify donor characteristics for my leukopak?
What is the turnaround time for a leukopak collection?
What is the difference between a leukopak and PBMCs?
Are leukopaks available for research use only?
How do I order a leukopak?
Get Started
Ready to order or reserve a leukopak?
Sanguine's leukopak collection services are designed to fit your timeline, donor specifications, and downstream application - with the regulatory documentation and quality assurance your research demands.