Comprehensive Aneurysm Management Trial

The uncertainty regarding the management of Unruptured Intracranial Aneurysms (UIAs) has not progressed in the last 30 years. The fundamental ethical basis for this study is that physicians should only offer a risky preventive treatment when it has been shown to be beneficial. Before that, such treatment should be offered as an RCT. The CAM trial offers a comprehensive framework, so that all patients confronted with the clinical dilemma can be offered participation. The principal questions to be addressed are : 1. do patients with UIAs, considered for curative treatments, have a better long-term clinical outcome with active treatment or conservative management? 2. when patients are considered ineligible for conservative management, and surgical and endovascular management are both judged reasonable, do patients with UIAs have a better long-term clinical outcome with surgical or endovascular management? The primary hypothesis for patients allocated to at least 2 options, one of which is conservative management is: the 10 year combined neurological morbidity and mortality (mRS\>2) will be reduced from 24% to 16% (beta 80%; alpha 0.048; sample size 961 patients (836 plus 15% losses to FU and cross-overs) with active treatment. This study is designed as a pragmatic, comprehensive way to address the unruptured aneurysm clinical dilemma, combining large simple RCTs whenever patients are judged eligible for more than one management option, or otherwise a registry of each option. …

This description comes directly from the study's public registry record.

Tim Darsaut, MD, MSc  ·  780-407-1440  ·  tdarsaut@ualberta.ca

Jean Raymond, MD  ·  514-890-8000  ·  jean.raymond@umontreal.ca

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