First-in-human Phase 1 open label study of the BET inhibitor ODM-207 in patients with selected solid tumours

Other authors

Institut Català de la Salut

[Ameratunga M] The Institute of Cancer Research and Royal Marsden, London, UK. Monash University, Melbourne, Australia. [Braña I] Vall d’Hebron Institut of Oncology (VHIO), Barcelona, Spain. [Bono P] Helsinki University Hospital Comprehensive Cancer Center, Helsinki, Finland. University of Helsinki, Helsinki, Finland. Terveystalo Finland and University of Helsinki, Helsinki, Finland. [Postel-Vinay S] Drug Development Department, DITEP, Gustave Roussy, Villejuif, France. [Plummer R] Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK. [Aspegren J] Orion Corporation Orion Pharma, Espoo, Finland

Vall d'Hebron Barcelona Hospital Campus

Publication date

2021-10-29T11:56:31Z

2021-10-29T11:56:31Z

2020-12-08



Abstract

Desenvolupament de fàrmacs; Melanoma


Desarrollo de fármacos; Melanoma


Drug development; Melanoma


Background Bromodomain and extra-terminal domain (BET) proteins are reported to be epigenetic anti-cancer drug targets. This first-in-human study evaluated the safety, pharmacokinetics and preliminary anti-tumour activity of the BET inhibitor ODM-207 in patients with selected solid tumours. Methods This was an open-label Phase 1 study comprised of a dose escalation part, and evaluation of the effect of food on pharmacokinetics. ODM-207 was administered orally once daily. The dose escalation part was initiated with a dose titration in the initial cohort, followed by a 3 + 3 design. Results Thirty-five patients were treated with ODM-207, of whom 12 (34%) had castrate-resistant prostate cancer. One dose-limiting toxicity of intolerable fatigue was observed. The highest studied dose achieved was 2 mg/kg due to cumulative toxicity observed beyond the dose-limiting toxicity (DLT) treatment window. Common AEs included thrombocytopenia, asthenia, nausea, anorexia, diarrhoea, fatigue, and vomiting. Platelet count decreased proportionally to exposure with rapid recovery upon treatment discontinuation. No partial or complete responses were observed. Conclusions ODM-207 shows increasing exposure in dose escalation and was safe at doses up to 2 mg/kg but had a narrow therapeutic window.


The study was sponsored by Orion Corporation, Orion Pharma, Espoo, Finland, the developer of ODM-207.

Document Type

Article


Published version

Language

English

Publisher

Springer Nature

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Attribution 4.0 International

http://creativecommons.org/licenses/by/4.0/

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