PMID- 29788497 OWN - NLM STAT- MEDLINE DCOM- 20191018 LR - 20200930 IS - 1523-5866 (Electronic) IS - 1522-8517 (Print) IS - 1522-8517 (Linking) VI - 20 IP - 12 DP - 2018 Nov 12 TI - A study of the focal adhesion kinase inhibitor GSK2256098 in patients with recurrent glioblastoma with evaluation of tumor penetration of [11C]GSK2256098. PG - 1634-1642 LID - 10.1093/neuonc/noy078 [doi] AB - BACKGROUND: GSK2256098 is a novel oral focal adhesion kinase (FAK) inhibitor. Preclinical studies demonstrate growth inhibition in glioblastoma cell lines. However, rodent studies indicate limited blood-brain barrier (BBB) penetration. In this expansion cohort within a phase I study, the safety, tolerability, pharmacokinetics (PK), and clinical activity of GSK2256098 were evaluated in patients with recurrent glioblastoma. Biodistribution and kinetics of [11C]GSK2256098 were assessed in a substudy using positron-emission tomography (PET). METHODS: Patients were treated with GSK2256098 until disease progression or withdrawal due to adverse events (AEs). Serial PK samples were collected on day 1. On a single day between days 9 and 20, patients received a microdose of intravenous [11C]GSK2256098 and were scanned with PET over 90 minutes with parallel PK sample collection. Response was assessed by MRI every 6 weeks. RESULTS: Thirteen patients were treated in 3 dose cohorts (1000 mg, 750 mg, 500 mg; all dosed twice daily). The maximum tolerated dose was 1000 mg twice daily. Dose-limiting toxicities were related to cerebral edema. Treatment-related AEs (>25%) were diarrhea, fatigue, and nausea. Eight patients participated in the PET substudy, with [11C]GSK2256098 VT (volume of distribution) estimates of 0.9 in tumor tissue, 0.5 in surrounding T2 enhancing areas, and 0.4 in normal brain. Best response of stable disease was observed in 3 patients, including 1 patient on treatment for 11.3 months. CONCLUSIONS: GSK2256098 was tolerable in patients with relapsed glioblastoma. GSK2256098 crossed the BBB at low levels into normal brain, but at markedly higher levels into tumor, consistent with tumor-associated BBB disruption. Additional clinical trials of GSK2256098 are ongoing. FAU - Brown, Nicholas F AU - Brown NF AD - NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust, London, UK. AD - Department of Oncology, UCL Cancer Institute, London, UK. FAU - Williams, Matthew AU - Williams M AD - Computational Oncology Lab, Institute of Global Health Innovation, South Kensington Campus, Imperial College, London, UK. AD - Radiotherapy Department, Charing Cross Hospital, London, UK. FAU - Arkenau, Hendrik-Tobias AU - Arkenau HT AD - Department of Oncology, UCL Cancer Institute, London, UK. AD - Sarah Cannon Research Institute UK, London, UK. FAU - Fleming, Ronald A AU - Fleming RA AD - GlaxoSmithKline, Research Triangle Park, Durham, North Carolina, USA. FAU - Tolson, Jerry AU - Tolson J AD - GlaxoSmithKline, Research Triangle Park, Durham, North Carolina, USA. FAU - Yan, Li AU - Yan L FAU - Zhang, Jianping AU - Zhang J AD - PAREXEL International, Durham, North Carolina, USA. FAU - Singh, Rajendra AU - Singh R AD - GlaxoSmithKline, Collegeville, Pennsylvania, USA. FAU - Auger, Kurt R AU - Auger KR AD - GlaxoSmithKline, Collegeville, Pennsylvania, USA. FAU - Lenox, Laurie AU - Lenox L AD - GlaxoSmithKline, Collegeville, Pennsylvania, USA. FAU - Cox, David AU - Cox D AD - GlaxoSmithKline Research & Development Ltd, Uxbridge, UK. FAU - Lewis, Yvonne AU - Lewis Y AD - GlaxoSmithKline, Collegeville, Pennsylvania, USA. AD - Imanova Ltd, Centre for Imaging Sciences, London, UK. FAU - Plisson, Christophe AU - Plisson C AD - Imanova Ltd, Centre for Imaging Sciences, London, UK. FAU - Searle, Graham AU - Searle G AD - Imanova Ltd, Centre for Imaging Sciences, London, UK. FAU - Saleem, Azeem AU - Saleem A AD - Imanova Ltd, Centre for Imaging Sciences, London, UK. FAU - Blagden, Sarah AU - Blagden S AD - NIHR/Wellcome Trust Imperial CRF, Imperial Centre for Translational and Experimental Medicine, Hammersmith Hospital, London, UK. FAU - Mulholland, Paul AU - Mulholland P AD - NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust, London, UK. AD - Department of Oncology, UCL Cancer Institute, London, UK. LA - eng SI - ClinicalTrials.gov/NCT01138033 GR - Wellcome Trust/United Kingdom PT - Clinical Trial, Phase I PT - Journal Article PT - Multicenter Study PT - Research Support, Non-U.S. Gov't PL - England TA - Neuro Oncol JT - Neuro-oncology JID - 100887420 RN - 0 (Aminopyridines) RN - 0 (Carbon Radioisotopes) RN - 0 (GSK2256098) RN - 0 (Hydroxamic Acids) RN - EC 2.7.10.2 (Focal Adhesion Protein-Tyrosine Kinases) SB - IM EIN - Neuro Oncol. 2020 Jun 9;22(6):894. Swartz, Lisa [removed]. PMID: 32506127 MH - Adolescent MH - Adult MH - Aged MH - Aminopyridines/pharmacokinetics/*therapeutic use MH - Carbon Radioisotopes/*pharmacokinetics MH - Cohort Studies MH - Female MH - Focal Adhesion Protein-Tyrosine Kinases/*antagonists & inhibitors MH - Follow-Up Studies MH - Glioblastoma/*drug therapy/pathology MH - Humans MH - Hydroxamic Acids/pharmacokinetics/*therapeutic use MH - Male MH - Maximum Tolerated Dose MH - Middle Aged MH - Neoplasm Recurrence, Local/*drug therapy/pathology MH - Prognosis MH - Tissue Distribution MH - Young Adult PMC - PMC6231205 EDAT- 2018/05/23 06:00 MHDA- 2019/10/19 06:00 PMCR- 2019/11/12 CRDT- 2018/05/23 06:00 PHST- 2018/05/23 06:00 [pubmed] PHST- 2019/10/19 06:00 [medline] PHST- 2018/05/23 06:00 [entrez] PHST- 2019/11/12 00:00 [pmc-release] AID - 4998845 [pii] AID - noy078 [pii] AID - 10.1093/neuonc/noy078 [doi] PST - ppublish SO - Neuro Oncol. 2018 Nov 12;20(12):1634-1642. doi: 10.1093/neuonc/noy078.