Twenty-eight days is a number from somebody else’s product
We set out what is known, what is inferred and what is simply assumed about the fortnight after a vial is opened.
TheCompound Journal
Reporting on incretins, compounding & the peptide supply chain
The Supply Chain Dispatch
Reported from the analysis, not from a warning notice.
The health authority in Canada has issued a warning on falsified liraglutide injection pens found in the legitimate supply chain. The Journal has reviewed the notice and the accompanying photographs; the distinguishing features are a batch-number font difference and a needle-shield colour, neither of which a patient could reasonably be expected to detect.
Comparison of 3 certificates supplied by the reseller against the laboratory’s public archive matched 7 of them to reports commissioned by other parties, in some cases more than a year earlier. The reseller did not respond to two written requests for comment.
The document is the weakest link in this trade. A certificate is a PDF; a laboratory letterhead is an image; a lot number is a string. Nothing in the ordinary transaction allows a buyer to confirm that a given report was issued for a given vial, and the four independent services differ in whether they offer any lookup at all.
Yusuf Kandemir, freight and customs broker, Istanbul, said the underfill finding was the more consequential one. "Nobody is being poisoned by a low content figure. Everybody using that vial is out by a fifth in every calculation they make."
Readers holding a certificate they cannot verify can send it to the standards desk. We compare against archives where they exist and publish the aggregate.
We set out what is known, what is inferred and what is simply assumed about the fortnight after a vial is opened.
A worked example: one peptide, five charge states, five mass-to-charge ratios, one molecular weight.
A reminder that a purity figure is the output of a method, and that methods differ.
The result is unremarkable. What the report omits is not.
The route did not close because of a rule about peptides.
Reported from the analysis, not from a warning notice.