Cold chain handling for cryopreserved perinatal biologics: a clinic workflow

Why cold chain integrity matters for cryopreserved biologics

Cryopreserved PB products use slow-rate freezing, -80 C storage and overnight dry-ice shipping. Follow the product's documented handling requirements.

These products are offered under the supplier's HCT/P framework described in 21 CFR 1271.10. Whether a specific intended use meets all applicable criteria in 21 CFR 1271.10 is a determination for the clinic and its counsel. A clinic that stores or handles cryopreserved biologics takes on responsibility for the portion of the cold chain under its own roof, from the moment a shipment arrives until the product is used or discarded.

Storage requirements at -80 degrees C

A dedicated ultra-low temperature freezer rated for -80C storage, kept separate from standard clinical refrigeration, is the baseline requirement. Freezer placement should allow for continuous temperature monitoring and should avoid circuits that are prone to interruption.

If applicable to your practice, consider logging temperature readings on a fixed schedule and keeping a continuous data logger or alarm system that notifies staff of excursions outside the validated range, particularly overnight or on days the clinic is closed.

Verifying a shipment on arrival

Cryopreserved product ships overnight on dry ice in a validated shipping container, per supplier specification. On arrival, staff should confirm the shipment was packed with sufficient dry ice remaining, that any temperature indicator or data logger included with the shipment reads within range, and that the outer packaging shows no signs of damage or thawing.

Document the concern and contact the supplier promptly. Follow the product's documented storage and excursion-handling instructions; do not infer usability from appearance.

Lot-level tracking from receiving through use

Each product lot carries its own lot identifier. PB tissue lots are tracked by lot at the patient-record level on the clinic side; recording that identifier at the point of use allows a specific lot to be matched back to its documentation if a question arises later.

Clinics should keep an internal log connecting lot numbers to receiving date, storage location, and disposition, whether used, discarded, or returned, so that any lot can be traced without reconstructing records after the fact.

Staff training and written procedure

A short written procedure covering receiving, storage, temperature monitoring, and lot logging gives staff a consistent reference and reduces the chance that an excursion or discrepancy goes unnoticed.

Training should identify who is authorized to accept a shipment, who checks freezer logs, and who to contact at the supplier if something looks wrong with a shipment or a stored lot.

Documentation to keep on file

A small set of records, kept consistently, covers most of what a clinic needs for its own cold chain accountability.

These products are not FDA approved or licensed for any disease or condition. Information is for licensed healthcare professionals and is not medical or legal advice.

• Certificate of analysis for each lot received.
• Shipment receiving record, including any temperature indicator reading.
• Freezer temperature log covering the storage period.
• Internal lot-to-patient-record traceability log.