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Record W3202475565 · doi:10.1080/15412555.2021.1982886

Triple Therapy in COPD: Time for Adaptive Selection Trials

2021· article· en· W3202475565 on OpenAlexaff
Samy Suissa

Bibliographic record

VenueCOPD Journal of Chronic Obstructive Pulmonary Disease · 2021
Typearticle
Languageen
FieldMedicine
TopicChronic Obstructive Pulmonary Disease (COPD) Research
Canadian institutionsMcGill UniversityJewish General Hospital
Fundersnot available
KeywordsMedicineClinical trialCOPDIntensive care medicineSelection (genetic algorithm)Adaptive designPhysical therapyInternal medicineComputer scienceArtificial intelligence

Abstract

fetched live from OpenAlex

Recent trials reported significant reductions in all-cause mortality with single-inhaler triple therapy for chronic obstructive pulmonary disease (COPD). However, reviews of these trials identified inconsistencies in the findings and methodological issues with the design and analysis, including the "adverse impact of inhaled corticosteroid (ICS) withdrawal rather than the addition" of the triple therapy. Indeed, ICS were discontinued in over 70% of the patients in these trials and 40% already using triple therapy, muddying the interpretation of the data. The "adaptive" clinical trial design is an efficient approach that allows continual modification of the study treatment allocation during follow-up. In this article, we propose the "adaptive selection" trial design, which applies the adaptive concept to the selection of patients into the trial by adapting the randomization choices to the treatment already used by the patients. With such a design, patients already on triple therapy would be excluded outright from trials of triple therapy effectiveness, while the others are randomly allocated to specific treatment arms according to their current treatment, avoiding issues of treatment withdrawal effects. Adaptive selection trials should be the norm for studies of COPD therapies. This approach would avoid the vexing effects of treatment withdrawal that have afflicted the recent triple therapy trials. This concept of adaptive selection has been applied in COPD to the question of whether patients can be safely de-escalated from ICS. It is time to also apply it to studies of the effectiveness of treatment escalation.

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)0.002
metaresearch head score (Gemma)0.003
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.782
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.003
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0020.001
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0020.000

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 head0.035
GPT teacher head0.324
Teacher spread0.289 · 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.

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

Citations22
Published2021
Admission routes1
Has abstractyes

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