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Record W4409897601 · doi:10.1080/17581869.2025.2494495

Methadone to treat chemotherapy-induced peripheral neuropathy (METACIN): study protocol

2025· article· en· W4409897601 on OpenAlex
Mathieos Belayneh, Samar Hejazi, Bruno Gagnon, Philippa Hawley

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenuePain Management · 2025
Typearticle
Languageen
FieldMedicine
TopicPain Management and Opioid Use
Canadian institutionsUniversité LavalUniversity of British Columbia
FundersBC Cancer FoundationUniversity of British ColumbiaMinistry of Health
KeywordsMedicineChemotherapy-induced peripheral neuropathyPeripheral neuropathyMethadoneChemotherapyPeripheralProtocol (science)OncologyAnesthesiaInternal medicineAlternative medicineDiabetes mellitusPathology

Abstract

fetched live from OpenAlex

RATIONALE: Chronic chemotherapy-induced peripheral neuropathy (CIPN) affects 70% of cancer patients, causing neuropathic pain. Duloxetine is the most recommended treatment for CIPN per most guidelines. However, Methadone, an alternative and effective treatment for refractory neuropathic cancer pain has been under-recognized and under-studied in patients with CIPN. PARTICIPANTS: Adult patients with cancer and life expectancy greater than 12 weeks who have >grade 1 CIPN based on National Cancer Institute Common Toxicity Criteria for Adverse Events version 5.0 grading scale lasting ≥3 months beyond chemotherapy completion. INTERVENTION: A triple-blind, double-dummy randomized controlled trial, participants randomized to either methadone or duloxetine, followed weekly over 5 weeks with dose titration. OUTCOMES: Primary outcome is the efficacy of methadone versus duloxetine in reducing average pain intensity from baseline to study end. Secondary outcomes include improvements in functional and quality-of-life interference. Exploratory outcomes include proportion of participants achieving ≥30% or ≥50% pain reduction, patient-reported global impression of change, incidence of adverse events, and methadone dose escalation over a 24-week follow up period. ANTICIPATED IMPACT: This study will determine if methadone is a viable treatment for CIPN; a very common, distressing, and debilitating condition that otherwise has limited treatment options. CLINICAL TRIAL REGISTRATION: www.clinicaltrials.gov identifier is NCT05786599.

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.

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)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Protocol · Consensus signal: none
Teacher disagreement score0.623
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
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 head0.018
GPT teacher head0.328
Teacher spread0.310 · 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