Interim Data from Phase II Study in Glioblastoma & Phase I Study in DIPG
Kazia reported new interim data from the ongoing phase II study of paxalisib in glioblastoma (NCT03522298) at the Society for Neuro-Oncology (SNO) Annual Meeting in November 2020.
The interim analysis of all patients in the study (n=30) showed a progression-free survival (PFS) of 8.4 months, and an overall survival (OS) of 17.5 months. These numbers compare favourably with the historical control: corresponding figures of 5.3 months and 12.7 months, respectively, are reported with temozolomide, the only FDA-approved standard of care in newly diagnosed glioblastoma.
At the same meeting, Dr Chris Tinkle and colleagues gave an oral presentation on interim data from their ongoing phase I study of paxalisib as monotherapy in patients with DIPG and DMGs (NCT03696355). The study had recruited 27 patients and reported generally favourable safety and tolerability with paxalisib, having determined a maximum tolerated dose (MTD) in children of 27 mg/m2.
There was not, at the time of analysis, a clear signal of efficacy, which was unsurprising given that the primary focus of the study was safety and tolerability. However, the authors reported a progression-free survival at 6 months (PFS6) of 96%, which compares favourably to an historical control of 58%.
Final Top-Line Data from Cantrixil Phase I Study in Ovarian Cancer
On 9 December 2020, Kazia reported top-line final data from the completed phase I study of Cantrixil (TRX-E-002-1) in advanced ovarian cancer. In total, 25 patients were recruited at hospitals in the United States and Australia. An MTD of 5 mg/kg was determined, with the key side effects being abdominal pain and gastro-intestinal symptoms.
Among 16 evaluable patients, one patient demonstrated a complete response (CR) according to RECIST criteria, and two patients demonstrated partial responses (PRs), making an overall response rate (ORR) of 19%.
Kazia is currently working alongside the investigators to produce a manuscript for submission to a peer-reviewed academic journal.
Receipt of $1.02 million R&D Tax Rebate
On 14 December 2020, Kazia received $1.02 million via the Australian R&D Tax Rebate scheme.
Completion of Unmarketable Parcel Share Sale Facility
As announced to ASX on 2 November 2020, Kazia launched an unmarketable parcel share sale facility in which parcels of less than AU$ 500 in value could be resumed and re-sold, with the benefits accruing to the holder.