On July 11, 2019 4SC AG (4SC, FSE Prime Standard: VSC) reported, that the Safety Review Committee (SRC) consisting of clinical and drug safety experts evaluated the safety data from the third dose cohort in the Phase Ib/II SENSITIZE study (ClinicalTrials.gov identifier: NCT03278665) (Press release, 4SC, JUL 11, 2019, View Source [SID1234537482]).
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The SENSITIZE study is a dose escalation study of domatinostat in combination with the checkpoint inhibitor pembrolizumab – an anti-PD-1 antibody approved in the US and the EU as a cancer immunotherapy – to evaluate the safety and tolerability of the combination treatment. The study is being conducted in patients with advanced-stage melanoma who are non-responding or refractory to prior treatment with checkpoint inhibitors.
The combination of domatinostat and pembrolizumab was confirmed as safe and well tolerated by the SRC at this, the third and highest predefined dose cohort.
Frank Hermann, M.D., Chief Development Officer of 4SC, said: "The SENSITIZE study is a key study to evaluate the safety and tolerability of domatinostat in combination with checkpoint inhibitors such as pembrolizumab. We are pleased to see that the highest predefined dose of domatinostat in combination with checkpoint blockade was safe and well tolerated.
In addition, from the sequential biopsies taken in SENSITIZE, we will be able to generate important biological data on the patient’s tumor microenvironment to investigate and support our preclinical data and proposed immuno-modulatory mechanism of action for domatinostat. Data analysis is ongoing, and we intend to publish the clinical and translational data set at an upcoming scientific conference."
Jason Loveridge, Ph.D., CEO of 4SC, added: "Based on the positive safety and tolerability outcome of the first three dose cohorts we will expand the SENSITIZE study and initiate further two cohorts. Taken together, the data from all cohorts will give us important information on how to optimally combine domatinostat with checkpoint blockade and inform our planned clinical studies of domatinostat in other indications.
We plan to initiate several clinical trials of domatinostat in combination with checkpoint inhibitors both in melanoma and Merkel cell carcinoma (MCC) in late 2019 and early 2020 with the intention that one of the MCC studies would be potentially sufficient for registration purposes."
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