Comment On: Omega‐3 Free Fatty Acids for the Maintenance of Remission in Crohn Disease: The EPIC Randomized Controlled Trials
Bibliographic record
Abstract
Context: Maintenance therapy for Crohn disease features the use of immunosuppressive drugs, which are associated with an increased risk of infection. Identification of safe and effective maintenance strategies is a priority. Objective: To determine whether the oral administration of omega‐3 free fatty acids is more effective than placebo for prevention of relapse of Crohn disease. Design, Setting, and Patients: Two randomized, double‐blind, placebo‐controlled studies (Epanova Program in Crohn's Study 1 [EPIC‐1] and EPIC‐2) conducted between January 2003 and February 2007 at 98 centers in Canada, Europe, Israel, and the United States. Data from 363 and 375 patients with quiescent Crohn disease were evaluated in EPIC‐1 and EPIC‐2, respectively. Interventions: Patients with a Crohn's Disease Activity Index (CDAI) score of less than 150 were randomly assigned to receive either 4 g/d of omega‐3 free fatty acids or placebo for up to 58 weeks. No other treatments for Crohn disease were permitted. Main Outcome Measure: Clinical relapse, as defined by a CDAI score of 150 points or greater and an increase of more than 70 points from the baseline value, or initiation of treatment for active Crohn disease. Results: For EPIC‐1, 188 patients were assigned to receive omega‐3 free fatty acids and 186 patients to receive placebo. Corresponding numbers for EPIC‐2 were 189 and 190 patients, respectively. The rate of relapse at 1 year in EPIC‐1 was 31.6% in patients who received omega‐3 free fatty acids and 35.7% in those who received placebo (hazard ratio, 0.82; 95% confidence interval, 0.51‐1.19; P = .30). Corresponding values for EPIC‐2 were 47.8% and 48.8% (hazard ratio, 0.90; 95% confidence interval, 0.67‐1.21; P = .48). Serious adverse events were uncommon and mostly related to Crohn disease. Conclusion: In these trials, treatment with omega‐3 free fatty acids was not effective for the prevention of relapse in Crohn disease. (JAMA. 2008;299:1690‐1697.) Feagan BG, Sandborn WJ, Mittmann U, et al.
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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 | 0.028 | 0.126 |
| Meta-epidemiology (narrow) | 0.003 | 0.001 |
| Meta-epidemiology (broad) | 0.004 | 0.006 |
| Bibliometrics | 0.002 | 0.004 |
| Science and technology studies | 0.003 | 0.004 |
| Scholarly communication | 0.004 | 0.005 |
| Open science | 0.007 | 0.002 |
| Research integrity | 0.046 | 0.029 |
| Insufficient payload (model declined to judge) | 0.022 | 0.017 |
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".