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An Update to MTX110 Study in Pediatric Patients with DIPG

An Update to MTX110 Study in Pediatric Patients with DIPG to be Presented at The International Symposium on Pediatric Neuro-Oncology, Hamburg, Germany (ISPNO 2022)

Midatech Pharma PLC (AIM: MTPH.L; Nasdaq: MTP), an R&D biotechnology company focused on improving the bio-delivery and biodistribution of medicines, is pleased to announce that investigators from Columbia University Irving Medical Center and New York-Presbyterian will present interim results from their ongoing Phase 1 study on Midatech’s MTX110 in Diffuse Intrinsic Pontine Glioma (“DIPG”) at The International Symposium on Pediatric Neuro-Oncology (“ISPNO 2022”) that will take place on 12-15 June 2022 in Hamburg, Germany. The presentation is titled: “A Phase I study examining the feasibility of intermittent convection-enhanced delivery (CED) of MTX110 for the treatment of children with newly diagnosed diffuse midline gliomas.”

The presentation will take place on 13 June 2022 in the neurosurgery section of the conference, at 10.30 am CEST. The investigators will show first data on seven out of the ten planned patients on the safety of MTX110 (a water-soluble formulation of panobinostat) in patients with DIPG. This study uses an implantable pump and catheter system that allows for continuous intratumoral administration of the study drug without the need for repeated surgery. The study continues its recruitment.

The agenda of the meeting may be found here:
ispno2022.de/program/scientific-program

Commenting, Dmitry Zamoryakhin, CSO of Midatech, said: “The presentation by the investigators from Columbia University Irving Medical Center and New York-Presbyterian will show first data on the safety of MTX110 use in patients with DIPG. This study uses an implantable pump and catheter system that allows for continuous intratumoral administration of the study drug without the need for repeated surgery. The same device is going to be used in another study of MTX110 in adult patients with recurrent glioblastoma, which we aim to begin in the second half of 2022.”

About MTX110

MTX110 is a water-soluble form of panobinostat free base, achieved through complexation with hydroxypropyl-β-cyclodextrin (HPBCD), that enables convection-enhanced delivery (CED) at potentially chemotherapeutic doses directly to the site of the tumour. Panobinostat is a hydroxamic acid and acts as a non-selective histone deacetylase inhibitor (pan-HDAC inhibitor). The currently available oral formulation of panobinostat lactate (Farydak®) is not suitable for treatment of brain cancers owing to poor blood-brain barrier penetration and inadequate brain drug concentrations. Based on favourable translational science data, MTX110 is being evaluated clinically as a treatment for DIPG (NCT03566199, NCT04264143) and recurrent medulloblastoma (NCT04315064), and preclinically for treatment of glioblastoma (SNO 2020 Abstract TMOD-27). MTX110 is delivered directly into and around the patient’s tumour via a catheter system (e.g. CED or fourth ventricle infusions) to bypass the blood-brain barrier. This technique exposes the tumour to very high drug concentrations while simultaneously minimising systemic drug levels and the potential for toxicity and other side effects. Panobinostat has demonstrated high potency against DIPG tumour cells in in vitro and in vivo models, and in a key study it was the most promising of 83 anticancer agents tested in 14 patient-derived DIPG cell lines (Grasso et al, 2015. Nature Medicine 21(6), 555-559).