Paste your abstract, protocol, or study summary. Aqrab flags bias, confounding, weak comparators, endpoint problems, and reporting gaps in under a minute.
3 critiques free, then pay as you go or go unlimited.
Five-axis methodology rubricStructured critique in under a minuteBuilt to help a researcher decide fast: is this study defensible, weak, or fixable before submission?
Automated detection of selection bias, confounding, information bias, and attrition across five explicit dimensions of your study design.
Signed-in researchers can revisit prior critiques, inspect the submitted text, and export structured results as Markdown or JSON.
Every critique scores five axes: study design · outcome measurement · confounding control · sample size · clinical relevance. One number, five stories.
Not another chatbot. A structured methodology engine.
Built for clinical research environments where privacy is non-negotiable.
Aqrab is for study methods and de-identified text. Do not submit PHI or patient identifiers.
Saved critiques are retrieved through your authenticated account, not a public link.
Five-axis scoring makes weak, mixed, and strong studies visibly different.
Aqrab supports methodological review; it does not replace ethics, statistical, or peer review.
Illustrative readings of published trials. See the kinds of issues Aqrab surfaces.
Useful RCT signal, but thromboembolic events keep the benefit-risk interpretation from looking clean.
Comparator deterioration makes the apparent treatment advantage hard to interpret causally.
A 33% attrition/dropout pattern creates a major threat to interpretability and blinding.
A clean negative/non-inferiority result that still answers the clinical question with useful precision.
Rigorous adaptive design with appropriate stopping; the trial learned quickly without overclaiming.
Start free. Scale when you're ready.
Everything you need to know before your first critique.