Empowered Patient Podcast Developing Chemically Modified Drugs that Cross the Blood-Brain Barrier to Treat Glioblastoma with Dr. Sandra Silberman CNS Pharmaceuticals
Dr. Sandra Silberman, Chief Medical Officer at CNS Pharmaceuticals, has developed new therapies for glioblastoma that can cross the blood-brain barrier to reach brain tumors. Their lead drug candidates have been modified to slip into the membranes to inhibit tumor growth and attack the cancer cells. The anthracycline-based and taxane-based drugs are showing efficacy in clinical trials and are not showing the cardiotoxicity associated with anthracyclines.
Sandra explains, "Anthracyclines are characteristically cardiotoxic. And we have just conducted a study of over 160 patients who have received this, and some of them for quite a long period of time. And we have not seen any cardiotoxicity. So we have one of the anthracyclines that is the first to actually cross the blood-brain barrier without any help from other mechanisms, and it also doesn't cause cardiotoxicity. So we have a really open field to be able to further develop this drug. And we know that this drug, based on all of our preclinical studies, is very effective against glioma cells."
"This is to the great credit of the chemists that we've been working with. Can I develop a compound that can not be a substrate for this, so it can't even bind to this efflux transporter and can slip by? But not only that, can it be lipophilic, meaning it can get through all those membranes, and it can be something that leaks into the brain itself. So the two molecules that we have are not substrates for these multidrug-resistant transporters. They're also very highly lipophilic, meaning they're very oily. And so I guess this has two meanings to it, but they're oily and then they slip into the brain and are able to do what they're supposed to be doing, which is the inhibition of tumor growth and killing the tumor cells."
#CNSPharma #Glioblastoma ##BrainCancer #BloodBrainBarrier #NeuroOncology #CancerResearch #DrugDevelopment #BrainTumor