BETHESDA, MD, USA I December 8, 2016 I Northwest Biotherapeutics (NWBO) (“NW Bio” or the “Company”), a biotechnology company developing DCVax® personalized immune therapies for solid tumor cancers, today provided an update about the Company’s Phase 3 trial of DCVax®-L for Glioblastome multiforme (GBM) brain cancer (the “Trial”).  The Company announced that 331 of the planned 348 patients have been enrolled in the Trial, and that data “events” have been accumulating towards the endpoints of the Trial.

As noted in the profile of the Trial on, the Company had estimated that the numbers of “events” to reach the main endpoints of the Trial may be reached in November 2016.  Following the end of the month last week, the Company requested updates from the external parties managing the Trial about the numbers of “events” (i.e., tumor recurrences or deaths).  Such updates typically take a couple of weeks, including quality control checking.  The Company hopes to receive this information and be able to make a further update announcement in approximately the next two weeks.  The Company remains blinded in regard to the Trial data and, as before, will only be receiving such updates on a blinded basis.

Since the summer of last year, the trial has been subject to a partial clinical hold, only on recruitment.  As a result of the partial hold, the Trial has not enrolled the last 17 of the total 348 patients.  To date, the regulators have not agreed to remove the partial hold, but have allowed all of the patients in the Trial to continue being treated in accordance with the Protocol. The Company is pursuing ongoing dialog with regulators.  However, at this point the Company believes that the potential benefits that could be obtained from enrolling the final 17 patients would not be worth the time it would take, as the process of re-starting and re-training the sites (including through Institutional Review Board renewals) for further enrollment would take months, followed by further months for the recruitment itself.   

Accordingly, the Company is no longer seeking to enroll the last 17 of the 348 patients.  Rather, the Company is focused on accumulation of the “events” necessary for the Trial endpoints.  When sufficient “events” have accumulated, the external parties managing the Trial will then begin the process of moving toward “data lock” and then analysis of the data, which are typically each multi-month processes, particularly for large international trials. 

About Northwest Biotherapeutics

Northwest Biotherapeutics is a biotechnology company focused on developing personalized immunotherapy products designed to treat cancers more effectively than current treatments, without toxicities of the kind associated with chemotherapies, and on a cost-effective basis, in both the United States and Europe.  The Company has a broad platform technology for DCVax dendritic cell-based vaccines.  The Company’s lead program is a 348-patient Phase III trial in newly diagnosed Glioblastoma multiforme (GBM), which is on a partial clinical hold in regard to new screening of patients.  GBM is the most aggressive and lethal form of brain cancer, and is an “orphan disease.”  The Company is under way with a Phase I/II trial with DCVax-Direct for all types of inoperable solid tumor cancers.  It has completed enrollment in the 40-patient Phase I portion of the trial. The Company previously conducted a Phase I/II trial with DCVax-L for metastatic ovarian cancer together with the University of Pennsylvania.

SOURCE: Northwest Biotherapeutics