Early assessment of treatment response in primary biliary cholangitis: key to timely management
Bibliographic record
Abstract
AIM: The aim of our study was to explore predictive factors associated with compete biochemical response (CBR) in primary biliary cholangitis (PBC) patients treated with ursodeoxycholic acid (UDCA) at month 12 and at last check-up; CBR was defined as both normal bilirubin and ALP levels. We also evaluated hepatic decompensation and prognosis during UDCA treatment. METHODS: We conducted a multicenter retrospective study of PBC patients. We enrolled patients with PBC before the beginning of UDCA treatment (13-15 mg/kg body weight per day) between 1999 and 2024 in 2 hepatology centers in Eastern Slovakia. RESULTS: We enrolled 155 patients in the final analysis, 147 women and 8 men, mean age at diagnosis 57 ± 15 years, the median follow-up was 10 ± 8 years. 29 patients (18.7%) had cirrhosis at diagnosis. Hepatic decompensation occurred in 12 patients during follow-up (7.7%; 95%CI 4-13%). 114 patients (73.5%; 95% CI 66-80%) achieved response to treatment according to Toronto criteria at month 6; CBR after 12 months of treatment was achieved by 41.3% (95% CI 33-50%) of patients; 51 patients (32.9%; 95% CI 26-41%) achieved CBR at last check-up. The OR for achieving CBR at month 12 in Toronto responders at month 6 was 46.36 (95%CI 6.147-349.646); p < 0.001. Of the patients who achieved a response defined by Toronto criteria at month 6, 44.7% of patients achieved CBR at last check-up and 55.3% did not. Out of the patients who did not achieve Toronto at month 6, none achieved CBR at last check-up (0%). Treatment response by Toronto criteria at month 6, CBR at month 12 and absence of liver cirrhosis predicted CBR at last check-up. The odds of decompensation were about 90% lower in patients who achieved treatment response. No case of hepatic decompensation or liver-related mortality during follow-up was observed in patients with CBR at last check-up. CONCLUSION: The assessment of treatment response at month 6 is very accurate predictor of complete biochemical response throughout the course of the disease. For non-responders to UDCA treatment, the addition of second line PBC treatment is indicated. For patients who have not met Toronto criteria at month 6 of UDCA treatment, the addition of second line PBC therapy should be considered.
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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 | 0.002 | 0.007 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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.
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".