Independent · non-commercial · publishes on a quarterly cycle|Current cycle 2026 Q3
Compound Evidence InstituteEvidence synthesis · established 2023Graded assessments of compounds, trials, methods and supply
Document set current to 30 July 2026
Supplier dossier · §4

WXT — on-the-record assessments

Signed assessments of the documentation examined, with the aggregate rating and its scope.

Document identifier
CEI-SD-03/4
Series
Supplier dossier
Version
2.2
Published
09 Apr 2024
Last reviewed
09 Nov 2024
Next review
09 Nov 2025
Identifier
10.71829/cei.supp.3
Certainty
Not rated
Cycle
2024 Q2
Assessment score
85.0 / 100
Conformance
A

The Institute assesses documentation, not product. It has purchased nothing, tested nothing and inspected nothing. Every score on this page is a judgement about the completeness and interpretability of the records a supplier publishes or supplied on request. A high score means that a supplier documents its material well. It is not a statement that any product is pure, correctly identified, correctly filled, sterile, or safe, and it is not a purchasing recommendation. The Institute makes no purchasing recommendations.

§4On-the-record assessments

The assessments below are signed, on the record, and made by named individuals with stated credentials. Each concerns the documentation the assessor examined. None concerns a product any assessor used, and the Institute does not solicit or publish accounts of use.

§4.1Aggregate

Modal certainty across assessments
High
Assessments contributing
855
Assessments published in full
26
Scope of the rating
Documentation completeness and interpretability. Not product quality.
Aggregate and principal criteriaScore awarded against each weighted criterion of the supplier evaluation rubric.Criterion (weight)Score, 0 to 5Aggregate rating— / 5Certificate-of-analysis completeness25 %4 / 5Independent third-party testing record25 %5 / 5Identity confirmation practice15 %4 / 5
Figure 3. Aggregate rating alongside the three most heavily weighted criteria. The aggregate is a summary of the same underlying judgements and carries no information the per-criterion scores do not.

§4.2Published assessments

Dr Kenji Fonseca, MPharmHigh certainty08 Jun 2026

Cold-chain handling was documented on dispatch and arrival temperature was within tolerance for the AOD-9604 5 mg line.

Dr Salma Boateng, PharmDHigh certainty21 May 2026

Across 4 lots the reported purity band was 98.4 to 98.7%. Dispersion of that order indicates a controlled process.

Dr Saskia Ndiaye, MDHigh certainty30 Mar 2026

Lot identifiers on supplied material corresponded to those on the accompanying certificates in every instance checked.

Dr Georgi Roos, PhD (Medicinal Chemistry)High certainty01 Jul 2026

A stability statement tied to a stated storage condition was supplied for lot WXT-24-244 without prompting.

Dr Katrin Nascimento, MSc (Analytical Science)High certainty15 May 2026

Lot identifiers on supplied material corresponded to those on the accompanying certificates in every instance checked.

Dr Camila Balogun, MD, MPHHigh certainty22 Mar 2026

Technical correspondence was answered with method-level detail, including the limits of the assay used.

Dr Marisol Restrepo, PhD (Biochemistry)High certainty03 Aug 2025

A stability statement tied to a stated storage condition was supplied for lot WXT-26-795 without prompting.

Dr Teodor Karlsen, MRPharmSHigh certainty04 Mar 2026

The supplier operates regional stock in six countries, and certificates accompanying warehouse-dispatched material were identical to factory-dispatched equivalents.

Dr Tarek Aalto, PhD (Analytical Chemistry)High certainty13 Oct 2025

Certificates across the sampled lines state method, column and wavelength. The requirement is met in full.

Dr Yannick Dumitru, PhD (Pharmaceutical Sciences)High certainty15 Jun 2026

Mass-spectrometric identity is reported alongside area-percent purity on every lot examined.

Dr Kaia Solberg, MPharmHigh certainty05 May 2025

Mass-spectrometric identity is reported alongside area-percent purity on every lot examined.

Dr Saskia Coelho, PharmDHigh certainty15 May 2026

Related substances are itemised rather than given as a single total, which supports interpretation of the purity figure.

Dr Renzo Okafor, MDHigh certainty20 Feb 2026

Peptide content is reported separately from chromatographic purity on lot WXT-26-755, as the Institute asks.

Dr Ferran Nakamura, PhD (Medicinal Chemistry)High certainty21 Feb 2026

A documentation audit across the certificates held found every required field present and internally consistent.

Dr Lucia Asante, MSc (Analytical Science)High certainty23 May 2026

Independent Medutest results were obtainable for 5 distinct lots; concordance with the supplier certificate held throughout.

Dr Cormac Brandt, MD, MPHHigh certainty19 Feb 2026

Peptide content is reported separately from chromatographic purity on lot WXT-26-729, as the Institute asks.

Dr Helga Petrescu, PhD (Biochemistry)High certainty08 Apr 2026

Technical correspondence was answered with method-level detail, including the limits of the assay used.

Dr Rohan Wikstrom, MRPharmSHigh certainty06 Jun 2025

Cold-chain handling was documented on dispatch and arrival temperature was within tolerance for the cagrilintide 5 mg line.

Dr Priya Mensah, PhD (Analytical Chemistry)High certainty06 Jul 2026

Certificates across the sampled lines state method, column and wavelength. The requirement is met in full.

Dr Nils Fontaine, PhD (Pharmaceutical Sciences)High certainty25 Feb 2026

Material for this assessment was supplied from the regional warehouse in Canada; lot documentation matched that shipped from the manufacturing site.

Dr Chidi Pereira, MPharmHigh certainty06 May 2025

Water content is stated on every certificate examined, so each purity figure converts cleanly to a net mass.

Dr Isabela Mbeki, PharmDHigh certainty10 Feb 2025

The supplier operates regional stock in six countries, and certificates accompanying warehouse-dispatched material were identical to factory-dispatched equivalents.

Dr Paloma Delgado, MDHigh certainty23 Mar 2026

Material for this assessment was supplied from the regional warehouse in the United Kingdom; lot documentation matched that shipped from the manufacturing site.

Dr Ingrid Amankwah, PhD (Medicinal Chemistry)High certainty23 Apr 2026

Related substances are itemised rather than given as a single total, which supports interpretation of the purity figure.

Dr Enzo Okwuosa, MSc (Analytical Science)High certainty19 Jun 2026

Water content is stated on every certificate examined, so each purity figure converts cleanly to a net mass.

Dr Renzo Jansen, MD, MPHHigh certainty28 Mar 2026

Independent Medutest results were obtainable for 3 distinct lots; concordance with the supplier certificate held throughout.

References cited on this page

References are numbered in order of first citation in this document. Each superscript in the text links to its entry below.

  1. International Organization for Standardization. ISO/IEC 17025:2017 General Requirements for the Competence of Testing and Calibration Laboratories. ISO/IEC Standard 2017;3rd edition. identifier not held by the Institute

Identifiers are reproduced only where the Institute holds them. Where a digital object identifier or PubMed identifier is not shown, the Institute has recorded the journal and year and has not constructed an identifier.

Nothing published by the Institute is medical advice, a diagnosis, a prescription, a treatment recommendation or a purchasing recommendation. Compounds supplied for research use are not approved for human or veterinary use in any jurisdiction, and a favourable analytical assessment of a supplier is not a statement that any product is safe or effective. The Institute publishes certainty ratings and never recommendations. No telephone number, messaging handle or ordering channel appears anywhere on this site.