Safety and efficacy of p62 DNA vaccine ELENAGEN in a first-in-human trial in patients with advanced solid tumors

Elenagen is a plasmid encoding p62/SQSTM1, the first DNA vaccine possessing two mutually complementing mechanisms of action: it elicits immune response against p62 and mitigates systemic chronic inflammation. Previously, Elenagen demonstrated anti-tumor efficacy and safety in rodent tumor models and...

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Bibliographic Details
Published in:	Oncotarget Vol. 8; no. 32; pp. 53730 - 53739
Main Authors:	Ponomarenko, Dmitry M, Klimova, Irina D, Chapygina, Yulia A, Dvornichenko, Viktoria V, Zhukova, Natalia V, Orlova, Rashida V, Manikhas, Georgy M, Zyryanov, Alexandr V, Burkhanova, Lilya A, Badrtdinova, Irina I, Oshchepkov, Basile N, Filippova, Elena V, Orlov, Sergei V, Kolesnikov, Sergei I, Sufianov, Albert A, Baum, Svetlana R, Zaitzeva, Olga Y, Komissarov, Andrey B, Grudinin, Mikhail P, Kiselev, Oleg I, Tsyb, Anatoly F, Venanzi, Franco, Shcherbinina, Vita, Chursov, Andrey, Gabai, Vladimir L, Shneider, Alexander M
Format:	Journal Article
Language:	English
Published:	United States Impact Journals LLC 08-08-2017
Subjects:	Clinical Research Paper ovary cancer breast cancer cancer vaccine chemotherapy cancer immunotherapy
Online Access:	Get full text
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Summary:	Elenagen is a plasmid encoding p62/SQSTM1, the first DNA vaccine possessing two mutually complementing mechanisms of action: it elicits immune response against p62 and mitigates systemic chronic inflammation. Previously, Elenagen demonstrated anti-tumor efficacy and safety in rodent tumor models and spontaneous tumors in dogs. This multicenter I/IIa trial evaluated safety and clinical activity of Elenagen in patients with advanced solid tumors. Fifteen patients were treated with escalating doses of Elenagen (1- 5 mg per doses, 5 times weekly) and additional 12 patients received 1 mg dose. Ten patients with breast and ovary cancers that progressed after Elenagen were then treated with conventional chemotherapy. Adverse events (AE) were of Grade 1; no severe AE were observed. Cumulatively twelve patients (44%) with breast, ovary, lung, renal cancer and melanoma achieved stable disease for at least 8 wks, with 4 of them (15%) had tumor control for more than 24 wks, with a maximum of 32 wks. The patients with breast and ovary cancers achieved additional tumor stabilization for 12-28 wks when treated with chemotherapy following Elenagen treatment. Therefore, Elenagen demonstrated good safety profile and antitumor activity in advanced solid tumors. Especially encouraging is its ability to restore tumor sensitivity to chemotherapy.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1949-2553 1949-2553
DOI:	10.18632/oncotarget.16574