Reference Detail

Ref Type

Journal Article

PMID

(32357963)

Authors

Sarker D, Plummer R, Meyer T, Sodergren MH, Basu B, Chee CE, Huang KW, Palmer DH, Ma YT, Evans TRJ, Spalding DRC, Pai M, Sharma R, Pinato DJ, Spicer J, Hunter S, Kwatra V, Nicholls JP, Collin D, Nutbrown R, Glenny H, Fairbairn S, Reebye V, Voutila J, Dorman S, Andrikakou P, Lloyd P, Felstead S, Vasara J, Habib R, Wood C, Saetrom P, Huber HE, Blakey DC, Rossi JJ, Habib N

Title

MTL-CEBPA, a Small Activating RNA Therapeutic Upregulating C/EBP-α, in Patients with Advanced Liver Cancer: A First-in-Human, Multicenter, Open-Label, Phase I Trial.

Journal	Vol	Issue	Date	Pages	Journal Short Title
Clinical cancer research : an official journal of the American Association for Cancer Research			2020 May 01	3936-3946	Clin Cancer Res

URL

Abstract Text

Transcription factor C/EBP-α (CCAAT/enhancer-binding protein alpha) acts as a master regulator of hepatic and myeloid functions and multiple oncogenic processes. MTL-CEBPA is a first-in-class small activating RNA oligonucleotide drug that upregulates C/EBP-α.We conducted a phase I, open-label, dose-escalation trial of MTL-CEBPA in adults with advanced hepatocellular carcinoma (HCC) with cirrhosis, or resulting from nonalcoholic steatohepatitis or with liver metastases. Patients received intravenous MTL-CEBPA once a week for 3 weeks followed by a rest period of 1 week per treatment cycle in the dose-escalation phase (3+3 design).Thirty-eight participants have been treated across six dose levels (28-160 mg/m2) and three dosing schedules. Thirty-four patients were evaluable for safety endpoints at 28 days. MTL-CEBPA treatment-related adverse events were not associated with dose, and no maximum dose was reached across the three schedules evaluated. Grade 3 treatment-related adverse events occurred in nine (24%) patients. In 24 patients with HCC evaluable for efficacy, an objective tumor response was achieved in one patient [4%; partial response (PR) for over 2 years] and stable disease (SD) in 12 (50%). After discontinuation of MTL-CEBPA, seven patients were treated with tyrosine kinase inhibitors (TKIs); three patients had a complete response with one further PR and two with SD.MTL-CEBPA is the first saRNA in clinical trials and demonstrates an acceptable safety profile and potential synergistic efficacy with TKIs in HCC. These encouraging phase I data validate targeting of C/EBP-α and have prompted MTL-CEBPA + sorafenib combination studies in HCC.

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Molecular Profile	Treatment Approach

Gene Name	Source	Synonyms	Protein Domains	Gene Description	Gene Role

Therapy Name	Drugs	Efficacy Evidence	Clinical Trials
CEBPA-51	CEBPA-51	0	0

Drug Name	Trade Name	Synonyms	Drug Classes	Drug Description
CEBPA-51		MTL-CEBPA\|NOV340 SMARTICLES\|MTL-501		CEBPA-51 (MTL-CEBPA) is a small activating RNA that induces expression of CEBPA mRNA and protein, which subsequently leads to upregulation of albumin, and thereby potentially inhibiting cell growth (PMID: 28882451, PMID: 32357963).

Gene	Variant	Impact	Protein Effect	Variant Description	Associated with drug Resistance

Molecular Profile	Indication/Tumor Type	Response Type	Therapy Name	Approval Status	Evidence Type	Efficacy Evidence	References