Updates on the number of fatalities in people treated with emicizumab, whether known to be related to emicizumab or not, are and will continue to be included in public safety registries and databases, such as FAERS (FDA Adverse Event Reporting System).
In regards to providing case details or causality, we are not able to provide extensive information related to serious adverse events or fatalities reported in the post-approval setting because the level of detail available and Genentech/Roche's ability to confirm individual details is variable. In addition, the information on adverse events provided to Genentech/Roche from consumers or physicians after approval is confidential, and detailed information cannot be shared without the consent of the reporting person, the patient or patient’s family. Patient privacy is very important to Genentech/Roche, so we are also careful not to disclose specific details about an adverse event that could jeopardize the privacy of either the patient or their family, or breach patient confidentiality.
We have worked with experts in the field to develop a series of manuscripts reviewing mortality in hemophilia A and using this to establish a framework to further assess the reported fatalities in people receiving emicizumab. These manuscripts were published in the Journal of Thrombosis and Hemostasis in December 2020 and can be found on this website under the Publications and Scientific Presentations/Hemophilia A and Mortality section.