This site is intended for healthcare professionals
Responding to unmet needs for metastatic castration-resistant prostate cancer
mCRPC in focus

Transcript: CYCLONE 2

Last updated:31st Jul 2024
Published:31st Jul 2024

Dr Neeraj Agarwal, Professor Karim Fizazi, Dr Bárbara Vieira Lima Aguiar Melão, and Professor Axel Merseburger

All transcripts are created from interview footage and directly reflect the content of the interview at the time. The content is that of the speaker and is not adjusted by Medthority.

I'll talk about CYCLONE-2 study, and this was a trial, which did not meet the primary endpoint. So we will like to keep it short. As we know that it was a phase 3 trial with abiraterone plus minus abemaciclib in first-line mCRPC setting. And just for our recollection, we know AR signalling activates CDK-46 to sustain proliferation of prostate cancer and up-regulation of cyclin D1 is a potential mechanism of resistance to AR signalling therapy. So there was a lot of preclinical rationale.

So this phase 3 trial, it was actually adaptive phase 2/phase 3 trial, which was designed to look for the efficacy of abemaciclib when added to abiraterone. Unfortunately, trial did not meet the primary endpoint of progression-free survival being improved by abemaciclib. So trial did not meet the primary endpoint, although we saw signal in patients or higher efficacy, signal of higher efficacy in patients with more aggressive disease, such as high Gleason score, patients who had de novo disease at the presentation, high PSA levels. So at this time it would be sufficient to say that we don't foresee abemaciclib being an option in our patients with metastatic prostate cancer at this current time. And we don't know if CDK-46 inhibition maybe utilised as a strategy in a more biomarker selected patients down the line.

View the video

Welcome: