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Record W4309526848 · doi:10.21203/rs.3.rs-2281655/v1

Incidence and predictors of febrile neutropenia in patients with metastatic castrate- resistant prostate cancer receiving docetaxel

2022· preprint· en· W4309526848 on OpenAlexaffabout
Sophie Peltekian, Shellyza Sajwani, Xiang Wang, Salmaan Kanji

Bibliographic record

VenueResearch Square · 2022
Typepreprint
Languageen
FieldMedicine
TopicNeutropenia and Cancer Infections
Canadian institutionsNova Scotia Health AuthorityOttawa Hospital
Fundersnot available
KeywordsDocetaxelMedicineFebrile neutropeniaIncidence (geometry)NeutropeniaProstate cancerInternal medicineRetrospective cohort studyLogistic regressionCohortPopulationOncologyChemotherapyCancer

Abstract

fetched live from OpenAlex

Abstract Purpose The incidence of febrile neutropenia (FN) in adults with castrate-resistant metastatic prostate cancer (mCRPC) receiving docetaxel in real-world settings since the expanded role of hormonal treatments has not been well studied. The study objective is to determine the incidence of FN and neutropenia among adults with mCRPC receiving docetaxel. Secondary objectives are to quantify outcomes of patients who develop FN and to identify predictors for FN in this population. Methods A single-centre retrospective cohort study was conducted which included adults with mCRPC receiving docetaxel at the Ottawa Hospital over a 5-year period. Charts were reviewed to collect clinical data to determine the incidence of FN. A multiple logistic regression was used to identify predictors of FN. Results In patients receiving docetaxel for mCRPC, the incidence of FN and neutropenia was 34/137 (25%) and 45/137 (33%), respectively. Among 34 patients who developed FN, 94% required hospitalization for FN for a mean of 5 days (+/- 2.8) and 6% died. Following FN, 53% required at least 1 treatment delay, 71% had at least 1 dose reduction and 18% received secondary prophylaxis with WBC Growth-Factors. Age category [OR 2.025, 95% CI 1.13–3.627] and presence of multiple comorbidities [OR 1.466, 95% CI 1.01–2.258] increased the risk of FN. Conclusion The incidence of FN and neutropenia in the clinical setting in patients receiving docetaxel for mCRPC is higher than previously reported and high enough to consider primary prophylaxis in high-risk groups. Age and multiple comorbidities were identified as risk factors.

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)0.000
metaresearch head score (Gemma)0.002
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: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.008
Threshold uncertainty score0.016

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.002
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.037
GPT teacher head0.370
Teacher spread0.333 · 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".

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Citations0
Published2022
Admission routes2
Has abstractyes

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