On June 12, 2018 PharmaMar (MSE:PHM) reported that basedmon recent receipt of OS (overall survival) data from lurbinectedin Phase II small-cellmlung cancer studies, including the monotherapy trial presented at ASCO (Free ASCO Whitepaper) on June 3rd that saw an OS of 11.8 months, a protocol amendment was submitted to FDA and other competent authorities to change the primary endpoint of the ATLANTIS Phase III trial from PFS (progression free survival) to OS (Press release, PharmaMar, JUN 12, 2018, View Source [SID1234527288]). The changes will begin when the competent authorities with responsibility for review and approval of the study approve of the changes, which in the US we expect to happen in the next few weeks. The safety of the patients and the integrity of this study are not compromised by these changes. PharmaMar remains blinded to the data, and
continues to expect completion of recruitment in the third quarter of 2018. This means PharmaMar expects the top line data, which is event driven, to readout in the second half of 2019.
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According to Luis Mora, Managing Director of PharmaMar´s Oncology Business Unit, "we feel that this change in endpoint to OS given what we have seen in the recent data, including those presented at ASCO (Free ASCO Whitepaper), offers us a better chance for success, especially as we know regulators prefer OS data over a surrogate endpoint subject to interpretation in this type of disease setting."
About Zepsyre
Zepsyre (lurbinectedin, PM1183) is a compound under clinical investigation. It is an inhibitor of RNA polymerase II. This enzyme is essential for the transcription process that is over-activated in tumors with transcription addiction.
About small-cell lung cancer
SCLC is a very aggressive cancer that usually presents with distant metastases and has already spread at the time of diagnosis, thus limiting the role of traditional approaches and posing a worse prognosis compared to other lung cancer types. The 5-year survival rate is about 5%i About 18% of all the lung cancer cases diagnosed are SCLC, and only in the US more than 34,000 new cases are recorded everyyear. This tumor is strongly associated with tobacco smoking, posing an important public health problemii
After failure to treatment with a platinum-based therapy in first line, the therapeutic alternatives are very limited, and the approval of the last drug for this disease took place 20 years ago.