A prospective study examining PROs and other geriatric outcomes in older adults with prostate cancer undergoing chemotherapy.
Bibliographic record
Abstract
9555 Background: Treatment of metastatic castration-resistant prostate cancer (mCRPC) with chemotherapy improves disease control and survival in older men (age 65+) based on large clinical trials. Its effects, though, on more frail elderly men are not well understood and chemotherapy may negatively impact frailty, daily function, physical performance, and quality of life (QOL), particularly outside the clinical trial setting. Methods: Men aged 65+ with mCRPC starting first-line chemotherapy were enrolled in this prospective observational pilot study. Physical function was assessed with the timed up and go (TUG) test, timed chair stands, and grip strength. Frailty was evaluated using the Vulnerable Elders Survey (VES-13) questionnaire in addition to functional status (OARS-IADL), social activities limitations and social support (MOS measures). Patients completed the FACT-P and FACT-G to measure prostate-specific QOL and general QOL, respectively. Assessments were completed before each cycle of chemotherapy. Pre-post within-group comparisons were done using student’s T-tests and linear regression. Results: 25 patients (mean age 75) receiving Docetaxel + Prednisone were enrolled, 3 of whom died and 2 dropped out. Both general and prostate-specific QOL improved over a median of 6 cycles. Patients’ instrumental activities of daily living (IADL) scores remained stable. On average, grip strength was stable and lower extremity function improved on both the TUG and Timed Chair Stands. At baseline, 13 of 25 patients (52%) were frail (VES score 3+). Of the patients that completed chemotherapy, 40% were frail. Conclusions: Contrary to our hypotheses, QOL did not decline in this frail elderly cohort, IADL function remained stable, and physical function remained stable or improved during first-line chemotherapy. Frailty also did not increase at the end of treatment as hypothesized. Older men with mCRPC appear to tolerate first-line chemotherapy fairly well in terms of QOL and geriatric domains.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".