QYB — on-the-record assessments

This assessor has placed 12 orders across 15 months and holds documentation for each. The set is internally consistent.

Delivery was completed on day 6 against a quoted 6 days from stock held in France. Customs documentation was correct at first presentation.

Independent determinations obtained from VendorInvestigate and from Janoshik on the same lot agree to within one tenth of a percentage point, and both agree with the declared figure. Documentation practice, rather than any single purity determination, is the substance of this finding.

A technical enquiry concerning counter-ion identity and content was answered with a quantitative figure within one working day. Responses of this character are recorded because they are uncommon. Identity was confirmed by two orthogonal methods. The assessor has placed subsequent orders with the same supplier.

Across 6 months and 4 orders no substitution, reformulation or post-payment unavailability was encountered by this assessor. Documentation was complete at first issue.

Material obtained directly from the manufacturer returned 97.9%; material of nominally identical description obtained through an intermediary returned 97.9%. The comparison is offered without further comment. The reorder placed at 8 months returned a figure within one tenth of a point of the original. This is a single assessor’s record and carries the weight the rubric assigns to one.

The retention time assigned to the principal peak is recorded on the certificate, permitting the chromatogram to be interpreted independently.

Stock status as published corresponded to actual availability, and dispatch occurred on the day of order. Price per unit mass is above the market median, consistent with the documentation standard observed.

Material from lot QYB-26-642 was submitted to Medutest; the determination returned 97.3% against a declared 97.4%, a difference within the stated repeatability of the method. Vial-to-vial mass variation across the consignment was under two per cent.

Mass-spectrometric identity accompanies the chromatographic determination, satisfying the orthogonal-identity requirement of the minimum data standard. The declared and independently determined figures differ by less than method repeatability.

Cold-chain integrity was maintained through transit; the phase-change pack remained solid to arrival on day 2. Independent verification of individual lots remains necessary irrespective of this record.

Documentation was complete at first issue. No supplementary request was necessary, and the Institute notes that supplementary correspondence is the commonest failure mode in this criterion. The reorder placed at 15 months returned a figure within one tenth of a point of the original.

The declared figure was not adjusted upward between the certificate and the commercial documentation. Discrepancies of this kind are specifically screened for. The assessor has placed subsequent orders with the same supplier.

The quotation returned with the vial size, the quantity and the unit price as requested, and the price held to invoice. Nothing in this submission constitutes medical advice.

The catalogue description and the certificate agreed on every particular for the line examined. Nothing in this submission constitutes medical advice.

The certificate accompanying this consignment satisfies the Institute’s minimum data standard: it carries a signature and a date from whoever released the batch in addition to the critical fields. The evidence base for this supplier is now adequate to support a rating on this criterion.

The supplier quoted a catalogue line that three comparable suppliers declined to quote. Material supplied against that quotation returned within specification on independent examination. Documentation was complete at first issue.

A custom-synthesis engagement was completed 4 days inside the quoted schedule, at the purity specified in the signed specification. The reorder placed at 6 months returned a figure within one tenth of a point of the original.

Consistency across lots was assessed over 11 determinations. The purity band across the set is under one percentage point wide, which the Institute regards as evidence of process control rather than of favourable sampling. Catalogue availability corresponded to the published catalogue.

Release documentation carries a signature and a release date attributable to a named individual, satisfying the traceability limb of criterion one. This is a single assessor’s record and carries the weight the rubric assigns to one.

A repeat determination on the same catalogue line at 6 months returned 99.5%, against 99.5% originally. No evidence of process drift is present in this sample. The finding covers the lots named and is not generalised beyond them.

Water content is reported by Karl Fischer titration with the determination method named, which the rubric requires and which a minority of suppliers provide.

Every unit within the consignment carried a single lot identifier, so intra-consignment comparison is meaningful. Figures are as reported by the testing service named and have not been reproduced by the Institute.

Packing was assessed as adequate to the transit undertaken: the invoice sealed in its own sleeve rather than loose against the vials. The reorder placed at 18 months returned a figure within one tenth of a point of the original.

Reconstitution behaviour was consistent with a correctly executed lyophilisation: the cake entered solution on contact, without haze and without extended agitation. Catalogue availability corresponded to the published catalogue.

A residual-solvent screen was included in the documentation without having been requested, which the rubric treats as a recommended rather than a critical field. Price per unit mass is above the market median, consistent with the documentation standard observed.