TSE/BSE Declarations for Animal-Derived APIs: What to Check
Share
No analytical method run on a drum of bile acid can rule out a transmissible spongiform encephalopathy risk. The risk is not a property of the batch; it is a property of where the material came from. That is why the declaration exists, and why a one-line statement that "the product is of non-bovine origin" fails the first serious audit it meets.
A usable declaration has four parts. Most of the ones buyers receive cover one of them properly.
Part one: the species
The animal species has to be named, and named in a way that matches the rest of the documentation. Bile acids are extracted from bile, and the species determines which risk categorisation applies.
Two errors are common. The first is a declaration written for a different product from a supplier's template, where the species does not match the certificate of analysis. The second is a collective term that covers several species without saying which one was used for this material.
For material where the species varies by campaign, the declaration has to say so and identify the species for the batch in question. A declaration that is true "in general" is not true for a shipment.
Part two: the country of origin and the risk category
Origin is not a formality here. Regulatory frameworks categorise countries by their BSE risk, and the category attached to the origin determines what assurances are needed downstream.
A declaration that names a country but not the risk category leaves the reader to work it out, which is exactly the work an auditor will ask your quality department to explain. Naming the category, with the date of the source it was drawn from, closes that gap.
Where material is sourced through intermediaries, the origin is the origin of the animal, not the location of the intermediary. This distinction is where supply chains most often become unclear, and it is the reason traceability documentation carries so much weight for animal-derived substances.
Part three: the tissues used and excluded
The risk is not uniform across the animal. Specified risk materials carry restrictions that do not apply to other tissues, and a declaration that says "of animal origin" without saying which tissue was used has said nothing useful.
For bile acid material, the starting tissue is bile, which is not a specified risk material in the frameworks that apply to these substances. Saying that explicitly, by name, is far stronger than an assurance that the product is safe.
| Element | What it establishes | What it does not establish |
|---|---|---|
| Species named | Which risk categorisation applies | Where the animal was raised |
| Country and risk category | The regulatory basis for the assurance | That the specific animal came from that country |
| Tissue identified | That no specified risk material is involved | That the process inactivated anything |
| Process steps described | Which steps contribute to risk reduction | That the reduction has been measured |
| Declaration date and signatory | Who asserted it, and when | That it is still accurate today |
Part four: the process and the signatory
Some production steps reduce risk, and a declaration that describes them is doing more than asserting compliance. Extraction, hydrolysis, strong alkali treatment and high-temperature drying all act on material in ways that matter to the argument.
The signatory matters as much as the content. A declaration signed by a sales office has no standing. It has to come from the site that makes the material, and it has to identify the person and the date, because a declaration is a statement about a period rather than a permanent property.
What buyers usually receive instead
Three substitutes appear regularly, and each one is worth recognising on sight.
The blanket statement. One sentence asserting that the product contains no specified risk material, with no species, no origin and no date. It cannot be wrong, because it says nothing.
The certificate that answers a different question. A GMP certificate or an ISO certificate attached in place of a declaration. Both are useful documents and neither addresses the origin of animal tissue.
The declaration for the wrong scope. A valid declaration covering the final purification site, when the material was extracted somewhere else. The document is genuine and its scope does not reach the risk.
How a declaration fits with the rest of the file
The declaration is not standalone. It has to be consistent with the origin stated on the certificate of analysis, with the site named on any certificate of suitability, and with the traceability documents behind the batch.
Where a certificate of suitability covers the substance, the TSE question is part of that assessment rather than a separate exercise, which is why the declaration and the certificate should never contradict each other. For what a certificate states and what it leaves out, see how to read a CEP certificate.
For the origin question as it appears in product claims rather than in declarations, see animal origin and vegetal claims and, on the supply side, origin traceability for bile powder.
Four questions that produce a real answer
- Which species, and does the certificate for this batch say the same?
- Which country, and under which risk category, as of what date?
- Which tissue, named explicitly?
- Which site signed it, and who is the signatory?
A supplier who answers all four from a document, without a follow-up email, has a system. A supplier who answers three and promises the fourth is describing an intention.
Primary sources: EMA guidance on TSE and BSE risk, EDQM certification for how the TSE question is handled inside a certificate, and EudraLex Volume 4 for the GMP obligations around animal-derived starting materials.
Frequently asked questions
Is a TSE/BSE declaration legally required for bile acid material?
The requirement depends on the market and on the use. What is consistent across regulated markets is that the question will be asked, and that an answer without species, origin and tissue will not close it.
Can a certificate of analysis replace a declaration?
No. The certificate reports measurements on the batch. The declaration addresses the origin of the animal material, which is not measurable in the finished substance.
Does the declaration need to be renewed?
It should carry a date and be refreshed when the origin, the species or the risk categorisation changes. An undated declaration is a statement about an unknown period.
What if the material is a mixture from several origins?
Then the declaration has to say so and cover each origin. A single-origin declaration for material that is not single-origin is inaccurate even when every individual source would have passed.
Is bile a specified risk material?
Bile is not among the tissues restricted as specified risk material in the frameworks that apply to these substances. Saying that explicitly, by tissue name, is much stronger than a general assurance.
Who should sign the declaration?
The site that produces the material, through a named and dated signatory. A declaration from a commercial office describes an intention rather than a control.