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Record W7132914766

Implementation of Co-clinical Autism Trials in Mice and Humans

2023· dissertation· W7132914766 on OpenAlexafffund
Zsuzsa Lindenmaier

Bibliographic record

VenueTSpace · 2023
Typedissertation
Language
FieldNeuroscience
TopicAutism Spectrum Disorder Research
Canadian institutionsUniversity of Toronto
FundersHospital for Sick Children
KeywordsAutismClinical trialSet (abstract data type)Autism spectrum disorderAnimal modelProtocol (science)
DOInot available

Abstract

fetched live from OpenAlex

Despite promise in animal models, novel therapeutics consistently fail in clinical trials of autism. Due to the heterogeneous nature of autism, treatment will likely only ameliorate symptoms in a subset of patients. There is a need to simultaneously test promising new compounds while understanding and predicting which patients will respond to each therapy. To determine what might contribute to response susceptibility, the implementation of co-clinical trials in autism is proposed. Here, the implementation of multiple co-clinical trials is discussed, including how changes to the protocols were expanded and adapted as the projects proceeded. The first studies set the groundwork for the methodology, first in a study of high throughput characterization of behavioural and neuroanatomical measures in mouse models, then in a study of oxytocin in mouse models of autism. Next, the first true co-clinical trial of tideglusib was investigated in mouse models of autism, followed by an investigation of arbaclofen that deviated due to treatment side effects. A high-throughput protocol for mouse models of autism is discussed, which encompasses chronic treatment over development, multiple magnetic resonance imaging time-points, and behavioural tests before, during, and after treatment. Human subjects also follow an extensive phenotyping protocol, including behavioural testing, as well as genetics and imaging assessments. This multi-modal, multi-species approach is designed to be a rigorous method of assessing treatment effect, with the intention of stratification by response susceptibility. Considerations that are key to successful implementation of a co-clinical trial are discussed, including behavioural, neuroanatomical, treatment, subject, and data analysis aspects. Recommendations based off lessons-learned are also reviewed, including the design of a third co-clinical trial. All of these considerations are discussed and implemented in a manner that makes use of the heterogeneity of the disorder-- an aspect that historically is ignored-- while also prioritizing translation across species. The implementation of co-clinical trials is the right "next step" for autism research, where the classic progression of therapeutics has failed. The hope is to introduce the concept of co-clinical trials to the field of autism, creating a shift in our current approach to the treatment of the disorder.

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)0.060
metaresearch head score (Gemma)0.024
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.060
Threshold uncertainty score0.318

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0600.024
Meta-epidemiology (narrow)0.0020.002
Meta-epidemiology (broad)0.0040.003
Bibliometrics0.0010.001
Science and technology studies0.0020.003
Scholarly communication0.0040.004
Open science0.0030.005
Research integrity0.0050.008
Insufficient payload (model declined to judge)0.0100.004

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 head0.194
GPT teacher head0.561
Teacher spread0.367 · 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 designObservational
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

Citations0
Published2023
Admission routes2
Has abstractyes

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