Who's minding the data? Data Monitoring Committees in clinical cancer trials
Bibliographic record
Abstract
Modern biomedicine is based on a number of novel institutions and practices that, in order to function, require some degree of formal and informal regulation. This paper contributes to the ongoing investigation of these processes, and the forms of objectivity they generate, by examining the emergence, development and deployment of Data Monitoring Committees in the field of clinical trials. The idea of a DMC had originally been raised in the clinical trial methodology literature in the 1970s so as to solve the problem of the management of interim trial data. Many leading clinical trial statisticians proposed that interim data and analyses be restricted to members of a DMC. Since the late 1980s, DMCs have evolved considerably in a constant search for ethical neutrality and objectivity through the use of sophisticated statistical techniques and novel organisational strategies. They have also been beset by a fundamental tension as to who or what should count as objective in such an undertaking. The paper examines the evolution of this institution in terms of the techniques brought to bear on the issues that they are expected to solve, the organisational forms through which DMCs have evolved and the ideals of objectivity that these forms embody.
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How this classification was reachedexpand
Direct model labels (unvalidated)
Per-model category and study-design labels from the labeling rounds. They are machine output, unvalidated, and the disagreement between models ships as data. No study design here is MEDLINE-validated yet.
| Model arm | Categories | Study design | Confidence |
|---|---|---|---|
| gemma | Science and technology studies Domain: not available · Genre: Empirical About the Canadian research system: no · About a Canadian topic: no | Qualitative | medium |
| gpt | Metaresearch Domain: Methods · Genre: Empirical About the Canadian research system: no · About a Canadian topic: no | Other design | low |
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.094 | 0.075 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.002 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.004 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.001 | 0.004 |
| Insufficient payload (model declined to judge) | 0.000 | 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, unvalidatedLabeled directly by 2 models reading the full record.
The models disagree on parts of this classification; every voice is preserved in the section at the end of the page.
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".