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Record W4407499406 · doi:10.1136/bcr-2024-263842

Acute dystonia following the two-injection start of aripiprazole once-monthly

2025· article· en· W4407499406 on OpenAlexaff
Alexander Levit, Ric M. Procyshyn, Kamyar Keramatian

Bibliographic record

VenueBMJ Case Reports · 2025
Typearticle
Languageen
FieldEconomics, Econometrics and Finance
TopicHealth Systems, Economic Evaluations, Quality of Life
Canadian institutionsUniversity of British Columbia
Fundersnot available
KeywordsAripiprazoleMedicineBenztropineRegimenPopulationAntipsychoticAnesthesiaPharmacologyInternal medicineSchizophrenia (object-oriented programming)Psychiatry

Abstract

fetched live from OpenAlex

We present a case of an acute dystonic reaction (ADR) following the two-injection start of aripiprazole once-monthly (AOM) in a patient who previously tolerated equivalent doses of oral aripiprazole (20 mg daily). The ADR occurred two times within 3 weeks of the two-injection start and was effectively treated with benztropine each time. The patient tolerated maintenance treatments of AOM 400 mg without recurrent ADR. A key risk factor in this patient was a prior ADR to a different antipsychotic. We also speculate on the potential roles of strenuous physical activity and infection in increasing the sensitivity to the two-injection initiation regimen compared with the conventional one-injection start. The two-injection start of AOM has been approved by regulatory bodies on the basis of population pharmacokinetic modelling. Our case may, therefore, identify a new safety concern with this alternative initiation option that was not captured in the modelling.

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 distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.016
metaresearch head score (Gemma)0.002
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.426
Threshold uncertainty score0.752

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0160.002
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.171
GPT teacher head0.442
Teacher spread0.272 · 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 teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designNot applicable
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".

Quick stats

Citations2
Published2025
Admission routes1
Has abstractyes

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