Abstract
Background
Notch signaling plays an integral role in development and tissue homeostasis. Inhibition of Notch signaling has been identified as a reasonable target for oncotherapy. Crenigacestat (LY3039478) is a potent Notch inhibitor that decreases Notch signaling and its downstream biologic effects.
Methods
I6F-MC-JJCD was a multicenter, nonrandomized, open-label, phase 1b study with 5 separate, parallel dose escalations in patients with advanced or metastatic cancer from a variety of solid tumors followed by a dose-confirmation phase in pre-specified tumor types. This manuscript reports on 2 of 5 groups. The primary objective was to determine the recommended phase 2 dose of crenigacestat combined with other anticancer agents (gemcitabine/cisplatin or gemcitabine/carboplatin). Secondary objectives included evaluation of safety, tolerability, preliminary efficacy, and pharmacokinetics.
Results
Patients (N = 31) received treatment between November 2016 and July 2019. Dose-limiting toxicities occurred in 6 patients. The recommended phase 2 dose for crenigacestat was 50 mg TIW in Part 1 (combined with gemcitabine/cisplatin) and not established in Part 2 (combined with gemcitabine/carboplatin) due to poor tolerability. Patients had at least one treatment-emergent adverse event (TEAE), and most had Grade ≥ 3 TEAEs. Over 50% of the patients experienced gastrointestinal disorders (Grade ≥ 3). No patient had complete response; 5 patients had a partial response. Disease control rates were 62.5% (Part 1) and 60.0% (Part 2).
Conclusion
This study demonstrated that the Notch inhibitor, crenigacestat, combined with different anticancer agents (gemcitabine, cisplatin, and carboplatin) was poorly tolerated and resulted in disappointing clinical activity in patients with advanced or metastatic solid tumors.
Clinicaltrials.gov Identification Number: NCT02784795.
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Availability of data
Lilly provides access to all individual participant data collected during the trial, after anonymization, with the exception of pharmacokinetic or genetic data. Data are available to request 6 months after the indication studied has been approved in the US and EU and after primary publication acceptance, whichever is later. No expiration date of data requests is currently set once data are made available. Access is provided after a proposal has been approved by an independent review committee identified for this purpose and after receipt of a signed data sharing agreement. Data and documents, including the study protocol, statistical analysis plan, clinical study report, blank or annotated case report forms, will be provided in a secure data sharing environment. For details on submitting a request, see the instructions provided at www.vivli.org.
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Acknowledgements
Medical writing support was provided by Debra Hidayetoglu, on behalf of Covance, Inc.
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This trial was funded by Eli Lilly and Company.
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A Azaro, Advisory and Consulting: Amcure GmbH and Orion Corporation. C Massard, Advisory and Consulting: Amgen, Astellas, AstraZeneca, Bayer, BeiGene, BMS, Celgene, Debiopharm, Genentech, Ipsen, Janssen, Lilly, MedImmune, MSD, Novartis, Pfizer, Roche, Sanofi, Orion; Principal/Sub-Investigator of Clinical Trials: Abbvie, Aduro, Agios, Amgen, Argen-x, Astex, AstraZeneca, Aveo pharmaceuticals, Bayer, Beigene, Blueprint, BMS, Boeringer Ingelheim, Celgene, Chugai, Clovis, Daiichi Sankyo, Debiopharm, Eisai, Eos, Exelixis, Forma, Gamamabs, Genentech, Gortec, GSK, H3 biomedecine, Incyte, Innate Pharma, Janssen, Kura Oncology, Kyowa, Lilly, Loxo, Lysarc, Lytix Biopharma, Medimmune, Menarini, Merus, MSD, Nanobiotix, Nektar Therapeutics, Novartis, Octimet, Oncoethix, Oncopeptides AB, Orion, Pfizer, Pharmamar, Pierre Fabre, Roche, Sanofi, Servier, Sierra Oncology, Taiho, Takeda, Tesaro, and Xencor, outside of submitted work. PA Cassier, received honoraria from Amgen, AstraZeneca, Blueprint Medicines, Novartis, Roche/Genentech, and Merck Serono; Investigator/Sub-Investigator of Clinical Trials: Abbvie, AstraZeneca, Bayer, Blueprint Medicines, Bristol-Myers Squibb, Celgene, Eli Lilly and Company, Glaxo Smith Kline, Innate Pharma, Janssen, Merck Serono, Merck Sharp Dohme, Novartis, Plexxikon, Genetech/Roche, Taiho Pharmaceuticals, and Transgene, outside of submitted work; Travel Accommodations and Expenses: Amgen, Bristol-Myers Squibb, Merck Sharp and Dohme, Netris Pharma, Novartis, and Roche. S Pant, Advisory and Consulting: Tyme, Inc., 4D-Pharma, Xencor, Ipsen; Principal/Sub-Investigator for Clinical Trials: Arcus, Arqule, Bristol-Myers Squibb, Eli Lilly, Five Prime Therapeutics, Glaxo Smith Kline, Holy Stone Healthcare Co., Tyme, Inc., Ipsen, Mirati Therapeutics, Inc., Novartis, Onco Response, Red Hill Biopharma, Ltd., Rgenix, Sanofi-Aventis, Xencor, Astellas, and Janssen, outside of submitted work. B Anderson, E Yuen, D Yu, G Oakley III, and KA Benhadji are current or past employees of Eli Lilly and Company and may hold company stocks. B Anderson is an employee of PRA Health Sciences and KA Benhadji is an employee of Taiho Oncology, and may hold company stocks.
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The study was approved by independent ethics committees or institutional review boards at each site. The study was registered at ClinicalTrials.gov as NCT02784795.
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Massard, C., Cassier, P.A., Azaro, A. et al. A phase 1b study of crenigacestat (LY3039478) in combination with gemcitabine and cisplatin or gemcitabine and carboplatin in patients with advanced or metastatic solid tumors. Cancer Chemother Pharmacol 90, 335–344 (2022). https://doi.org/10.1007/s00280-022-04461-z
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DOI: https://doi.org/10.1007/s00280-022-04461-z