A phase I/IIa study of the mRNA-based cancer immunotherapy CV9201 in patients with stage IIIB/IV non-small cell lung cancer

• Verfasst von: Sebastian, Martin [VerfasserIn]
• Verfasst von: Thomas, Michael [VerfasserIn]
• Titel: A phase I/IIa study of the mRNA-based cancer immunotherapy CV9201 in patients with stage IIIB/IV non-small cell lung cancer
• Verf.angabe: Martin Sebastian, Andreas Schröder, Birgit Scheel, Henoch S. Hong, Anke Muth, Lotta von Boehmer, Alfred Zippelius, Frank Mayer, Martin Reck, Djordje Atanackovic, Michael Thomas, Folker Schneller, Jan Stöhlmacher, Helga Bernhard, Andreas Gröschel, Thomas Lander, Jochen Probst, Tanja Strack, Volker Wiegand, Ulrike Gnad-Vogt, Karl-Josef Kallen, Ingmar Hoerr, Florian von der Muelbe, Mariola Fotin-Mleczek, Alexander Knuth, Sven D. Koch
• E-Jahr: 2019
• Jahr: 15 February 2019
• Umfang: 14 S.
• Fussnoten: Gesehen am 07.10.2019
• Titel Quelle: Enthalten in: Cancer immunology immunotherapy
• Ort Quelle: Berlin : Springer, 1976
• Jahr Quelle: 2019
• Band/Heft Quelle: 68(2019), 5, Seite 799-812
• ISSN Quelle: 1432-0851
• DOI: doi:10.1007/s00262-019-02315-x
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Active cancer immunotherapy
• Sach-SW: Clinical trial
• Sach-SW: CV9201
• Sach-SW: Immunomonitoring
• Sach-SW: mRNA
• Sach-SW: Non-small cell lung cancer
• K10plus-PPN: 1678233129

Abstract

CV9201 is an RNActive®-based cancer immunotherapy encoding five non-small cell lung cancer-antigens: New York esophageal squamous cell carcinoma-1, melanoma antigen family C1/C2, survivin, and trophoblast glycoprotein. In a phase I/IIa dose-escalation trial, 46 patients with locally advanced (n = 7) or metastatic (n = 39) NSCLC and at least stable disease after first-line treatment received five intradermal CV9201 injections (400-1600 µg of mRNA). The primary objective of the trial was to assess safety. Secondary objectives included assessment of antibody and ex vivo T cell responses against the five antigens, and changes in immune cell populations. All CV9201 dose levels were well-tolerated and the recommended dose for phase IIa was 1600 µg. Most AEs were mild-to-moderate injection site reactions and flu-like symptoms. Three (7%) patients had grade 3 related AEs. No related grade 4/5 or related serious AEs occurred. In phase IIa, antigen-specific immune responses against ≥ 1 antigen were detected in 63% of evaluable patients after treatment. The frequency of activated IgD+CD38hi B cells increased > twofold in 18/30 (60%) evaluable patients. 9/29 (31%) evaluable patients in phase IIa had stable disease and 20/29 (69%) had progressive disease. Median progression-free and overall survival were 5.0 months (95% CI 1.8-6.3) and 10.8 months (8.1-16.7) from first administration, respectively. Two- and 3-year survival rates were 26.7% and 20.7%, respectively. CV9201 was well-tolerated and immune responses could be detected after treatment supporting further clinical investigation.