4SC reaches significant milestone with enrollment of 100 patients in pivotal RESMAIN study of resminostat as CTCL maintenance therapy

  • Two thirds of patients enrolled
  • RESMAIN – pivotal study to evaluate resminostat for maintenance treatment of patients with advanced-stage cutaneous T-cell lymphoma (CTCL) who have achieved disease control with prior systemic therapy
  • Top-line results expected in the first half of 2020

Planegg-Martinsried, Germany, 20 November 2018 – 4SC AG (4SC, FSE Prime Standard: VSC) today announced, that two thirds of patients have been enrolled in the pivotal RESMAIN study.

The RESMAIN study is a multi-center, double-blind, randomized, placebo-controlled, 150 patient study with resminostat, a histone deacetylase (HDAC) inhibitor, as maintenance treatment of patients with advanced-stage cutaneous T-cell lymphoma (CTCL) who have achieved disease control with prior systemic therapy. The study is conducted at more than 50 clinical centers in 11 European countries and Japan.

The RESMAIN study is focused on patients with advanced-stage, incurable CTCL. Such patients suffer from painful and itchy skin lesions resulting in disfigurement and a severely impaired quality of life. None of the current therapeutic options achieve stable disease for long periods, with most patients progressing within three to six months.

Susanne Danhauser-Riedl, M.D., Chief Medical Officer of 4SC, said: “We thank the patients for participating in the RESMAIN study and the study teams and investigators for their efforts and contribution. The study is progressing in line with expectations and all study sites are open for enrollment.

With two thirds of patients already randomized we expect top-line results to be available in the first half of 2020 and, if positive, we plan to submit resminostat for market approval in Europe and the US, and our partner Yakult Honsha will submit in Japan. If approved, resminostat would be the first HDAC inhibitor approved for CTCL in Europe and the first and only drug approved for maintenance therapy in this indication in either Europe, Japan or the US.”

Related articles

28 June 2018, New data supports resminostat’s mechanism of action in CTCL maintenance therapy

19 April 2018, Phase II study of 4SC’s resminostat in biliary tract cancer in Japan is initiated

11 April 2018, Yakult Honsha recruits first Japanese patient in 4SC’s pivotal RESMAIN study of resminostat in CTCL

20 December 2017, 4SC receives Pediatric Investigation Plan Waiver for resminostat in CTCL from the European Medicines Agency

About resminostat

Resminostat is orally administered and potentially offers a novel approach to treating a wide variety of cancers, both as monotherapy and in combination therapy with other anti-cancer drugs. Resminostat inhibits tumor growth and proliferation, causes tumor regression, and strengthens the body’s immune response to cancer.

Resminostat has been shown to be well tolerated in several clinical trials. Resminostat is currently being investigated in a pivotal study in cutaneous T-cell lymphoma (CTCL) by 4SC and a Phase II study in biliary tract cancer by 4SC’s development partner Yakult Honsha in Japan. Amongst others, resminostat has previously been investigated in biliary tract or pancreatic cancer and hepatocellular carcinoma (HCC).

About cutaneous T-cell lymphoma (CTCL)

CTCL is a rare disease with approximately 5,000 patients being newly diagnosed in Europe each year. The disease arises from malignant transformation of T cells, a specialized subgroup of immune cells, primarily affects the skin, but may ultimately involve lymph nodes, blood and visceral organs.

Currently, CTCL is not curable and treatment options for advanced-stage CTCL are limited. Although patients respond to the available treatment options, the duration of response is often short-lived and declines as the severity of the disease increases. The key therapeutic challenge in advanced-stage CTCL is therefore to make remissions more durable, halting disease progression, improving quality of life and prolonging progression free and overall survival.

About the RESMAIN study – Resminostat for maintenance treatment of CTCL

The pivotal RESMAIN study is being conducted at more than 50 clinical centers in 11 European countries and Japan. It will include 150 patients who suffer from advanced-stage cutaneous T-cell lymphoma (CTCL) and have achieved disease control with systemic therapy. The patients are randomized 1:1 to receive either resminostat or placebo. Patients who experience disease progression – while being on placebo – will be offered resminostat in an open label treatment arm.

The primary goal of the study is to determine whether maintenance treatment with resminostat prolongs progression-free survival and the key secondary objective is to prolong the time to symptom worsening (itching). A comprehensive biomarker program is also included in the study to ensure vital knowledge about the biological background of resminostat treatment and CTCL is acquired. 4SC anticipates top-line data to be available in the first half of 2020.

About 4SC

4SC AG is a clinical-stage biopharmaceutical company developing small-molecule drugs that can target key indications in cancer with high unmet medical needs. 4SC’s pipeline is protected by a comprehensive portfolio of patents and currently comprises three key drug candidates in various stages of preclinical and clinical development: resminostat, domatinostat (4SC-202) and 4SC-208.

4SC aims to generate future growth and enhance its enterprise value by entering into partnerships with pharmaceutical and biotech companies and/or the eventual marketing and sales of approved drugs in select territories by 4SC itself.

4SC is headquartered in Planegg-Martinsried near Munich, Germany. The Company had 46 employees as of 30 September 2018 and is listed on the Prime Standard of the Frankfurt Stock Exchange (FSE Prime Standard: VSC; ISIN: DE000A14KL72).

Forward-looking information

Information set forth in this press release contains forward-looking statements, which involve risks and uncertainties. The forward-looking statements contained herein represent the judgement of 4SC as of the date of this press release. Such forward-looking statements are neither promises nor guarantees but are subject to a variety of risks and uncertainties, many of which are beyond 4SC’s control, and which could cause actual results to differ materially from those contemplated in these forward-looking statements. 4SC expressly disclaims any obligation or undertaking to release any updates or revisions to any such statements to reflect any change in its expectations or any change in events, conditions or circumstances on which any such statement is based.

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