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Record W2163243994 · doi:10.4212/cjhp.v68i1.1420

Stability of Dabigatran Etexilate in Manufacturer’s Blister Pack, Unit-Dose Packaging, and Community Pharmacy Blister Pack

2015· article· en· W2163243994 on OpenAlexaffvenue
Erica H. Z. Wang, Jennifer Bolt, Diane Décarie, William Semchuk, Mary H. H. Ensom

Bibliographic record

VenueThe Canadian Journal of Hospital Pharmacy · 2015
Typearticle
Languageen
FieldChemistry
TopicAnalytical Methods in Pharmaceuticals
Canadian institutionsUniversity of British ColumbiaChildren's & Women's Health Centre of British ColumbiaRegina Qu'Appelle Health RegionSt. Paul's Hospital
Fundersnot available
KeywordsDabigatranMedicineDrug packagingCommunity pharmacyPharmacyAtrial fibrillationWarfarinInternal medicineNursing

Abstract

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Background: Dabigatran, a direct thrombin inhibitor, is indicated for the prevention and treatment of venous thromboembolism and for stroke prophylaxis in atrial fibrillation. The manufacturer recommends that dabigatran etexilate be retained in the original packaging until administration. Currently, no information exists about the stability of dabigatran etexilate outside its original packaging.Objective: To evaluate the stability of dabigatran etexilate capsules over 120 days, with storage in the manufacturer’s original packaging, in unitdose packaging, and in community pharmacy blister packaging.Methods: Commercially available dabigatran etexilate capsules (110 mg) were stored at room temperature (25°C) in the manufacturer’s original blister pack, in unit-dose packaging, or in community pharmacy blister packs. Samples were collected from each container daily for the first 3 days, weekly up to 28 days, every other week until day 98, and at day 120. Suspensions were prepared, pH was evaluated, and samples were stored at –85°C until analysis. Each sample was analyzed in duplicate by a validated, stability-indicating high-performance liquid chromatography – ultraviolet detection method. The capsules were considered stable if they maintained at least 90% of the initial concentration.Results: Dabigatran etexilate capsules maintained 100.4% of the original concentration with 120 days of storage in the manufacturer’s original blister pack, 98.7% with storage in unit-dose packaging, and 98.0% with storage in community pharmacy blister packs. There were no notable changes in appearance, ease of suspension of the capsule content, or pH over the 120-day period.Conclusion: Dabigatran etexilate 110-mg capsules were stable for 120 days with storage at room temperature in 3 types of packaging widely used in hospital and community settings.RÉSUMÉContexte : Le dabigatran, un inhibiteur direct de la thrombine, est approuvé pour la prévention et le traitement des événements thromboemboliques veineux et pour la prophylaxie de l’accident vasculaire cérébral en présence de fibrillation auriculaire. Le fabricant recommande que le dabigatran etexilate soit gardé dans le conditionnement d’origine jusqu’à l’administration. Il n’existe aucune donnée sur la stabilité du dabigatran etexilate hors du conditionnement d’origine.Objectif : Évaluer la stabilité de capsules de dabigatran etexilate sur une période de 120 jours lorsqu’elles sont entreposées dans : le conditionnement d’origine du fabricant, un conditionnement unitaire ou un pilulier de type plaquette alvéolée préparé en pharmacie communautaire.Méthodes : Des capsules de 110 mg de dabigatran etexilate, disponibles sur le marché, ont été entreposées à température ambiante (25 °C) soit dans la plaquette alvéolée d’origine du fabricant, soit dans un conditionnement unitaire, soit dans un pilulier de type plaquette alvéolée préparé en pharmacie communautaire. Des échantillons ont été prélevés de chaque type d’emballage : quotidiennement pour les 3 premiers jours, hebdomadairement pour les 28 jours suivants, puis toutes les deux semaines jusqu’au jour 98, et au jour 120. Des suspensions ont été préparées, le pH mesuré et les échantillons entreposés à –85 °C jusqu’à l’analyse. Chaque échantillon a été soumis à une double analyse à l’aide d’une épreuve validée mesurant la stabilité par chromatographie liquide haute performance avec détection ultraviolette. Les capsules étaient considérées comme stables si elles conservaient au moins 90 % de leur concentration initiale.Résultats : Au bout des 120 jours, les capsules de dabigatran etexilate ont conservé 100,4 % de leur concentration de départ lorsqu’entreposées dans les plaquettes alvéolées d’origine du fabricant, 98,7 % lorsqu’entreposées dans un conditionnement unitaire et 98,0 % lorsqu’entreposées dans un pilulier de type plaquette alvéolée préparé en pharmacie communautaire. Aucun changement notable de l’apparence, du pH et de la facilité de la mise en suspension du contenu de la capsule n’a été observé pendant la période de 120 jours.Conclusion : Les capsules de 110 mg de dabigatran etexilate sont demeurées stables pendant la période de 120 jours d’entreposage à température ambiante dans trois types de conditionnement largement utilisés dans les hôpitaux et les pharmacies communautaires.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.002
metaresearch head score (Gemma)0.003
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.003
Threshold uncertainty score0.010

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0020.003
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0030.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.173
GPT teacher head0.389
Teacher spread0.217 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

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Citations14
Published2015
Admission routes2
Has abstractyes

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