OC-043 Long term efficacy and safety of ustekinumab for crohn’s disease: results from im-uniti long-term extension through 2 years
Bibliographic record
Abstract
Introduction Ustekinumab (UST) is a fully human mAB to IL–12/23 p40 approved for treatment of moderate-severe active Crohn’s disease (CD). The IM-UNITI long-term extension (LTE) evaluates efficacy and safety of subcutaneous (SC) UST through approximately 5 years of treatment, with wk96 results reported herein. Method 1281 patients (pts) entered the maintenance study, including 397 UST induction responders in the primary IM-UNITI population. PBO induction responders continued on PBO, PBO induction non-responders received UST 130 mg IV then UST 90 mg SC q12w if in clinical response at wk8, and UST induction non-responders received UST 90 mg SC and if in clinical response at wk8 continued on UST 90 mg q8w. All pts completing wk44 were eligible to enter LTE continuing their treatment regimen, including 567 UST pts. Results Table 1 presents analyses for randomised pts where pts missing data/discontinued are assumed not to be in response/remission at wk92, with 72.6% of q12w pts and 74.4% of q8w pts achieving remission at wk92. Baased on observed data analyses, among randomised pts who continued to receive UST through wk96, 79.2% of q12w and 87.1% of q8w pts were in remission and 90.9%–94.3% were in response at wk92, respectively. Among all UST treated pts who continued to receive UST through wk96, remission and response rates at wk92 were 70.7%–84.7%. Safety events were not higher among UST treated pts vs PBO through wk96, including overall AE’s (82.9 vs 91), SAE’s (14.16 vs 18.2), and serious infections (3.73 vs 4.33). Among UST treated pts, there were 2 deaths (sudden death, asphyxia). Two non-NMSC malignancies were reported, a seminoma (UST) and a papillary thyroid cancer (PBO only). Conclusion SC UST maintained clinical response and remission through two years. No new safety signals were observed. Disclosure of Interest None Declared
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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 | 0.003 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.002 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.003 | 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".