OSE Immunotherapeutics Granted Approval to Resume Patient Accrual in U. S. for Phase 3 Tedopi® Clinical Trial in Advanced Non-Small Cell Lung Cancer Patients Following Immune Checkpoint Inhibitor Treatment


NANTES, France, Feb. 27, 2018 (GLOBE NEWSWIRE) -- OSE Immunotherapeutics (ISIN:FR0012127173) (Mnémo:OSE), today announces that the first approvals to resume patient accrual in the global Tedopi® Phase 3 trial have been granted in the United States by the Institutional Review Boards. Recruitment into this trial is based on a revised protocol focused on patients with Non-Small Cell Lung Cancer (NSCLC) who have failed a previous treatment with PD-1/PD-L1 immune checkpoint inhibitors.

The U.S. is the first region in which the trial will resume patient accrual under the revised protocol. By focusing exclusively on NSCLC patients who have failed a previous treatment with PD-1/PD-L1 immune checkpoint inhibitors, Tedopi® has the potential to address a significant unmet medical need, as no product is currently approved for the treatment of this population in immune escape.

The trial will be conducted in two steps:

  1. Enrollment of approximately 100 patients and a performance analysis of the survival data, with results expected in approximately two years.
  2. Based on this analysis, the observed clinical benefit of Tedopi® will determine the registration strategy to be implemented in a second step.

"We are pleased to resume recruitment in this Tedopi® Phase 3 study, with a design that addresses the treatment needs of a specific patient population, for whom there is currently no approved therapeutic option. We warmly thank all of the clinical investigators participating in this clinical trial for their continued support," said Dominique Costantini, Chief Executive Officer of OSE Immunotherapeutics.

The Tedopi® Phase 3 trial, Atalante 1, is evaluating the benefit of Tedopi® in HLA-A2 positive patients with NSCLC at invasive stage IIIB or metastatic stage IV, in 2nd or 3rd line treatment following failure of a checkpoint inhibitor, compared to current standard chemotherapy treatments in this patient population. The primary endpoint of the trial is overall survival.

ABOUT OSE IMMUNOTHERAPEUTICS
Our ambition is to become a world leader in activation and regulation immunotherapies:
OSE Immunotherapeutics is a biotechnology company focused on the development of innovative immunotherapies for immune activation and regulation in the fields of immuno-oncology, autoimmune diseases and transplantation. The company has several scientific and technological platforms: neoepitopes, agonist or antagonist monoclonal antibodies, ideally positioned to fight cancer and autoimmune diseases. Its first-in-class clinical portfolio offers a diversified risk profile.

In immuno-oncology:

  • Tedopi®, 10 combined neoepitopes to induce a specific T lymphocyte activation. Phase III trial in advanced NSCLC: after temporary pause of new patient accrual end of June 2017, new recruitment strategy in December 2017, following the recommendation of the trial’s Independent Data Monitoring Committee, to focus the trial on patients who failed a previous treatment with a PD-1/PD-L1 immune checkpoint inhibitor. Enrollment will resume after formal approval of the new recruitment strategy from the Competent Authorities. In February 2018, the first approvals to resume patient accrual have been granted in the United States by the Institutional Review Boards.
    • Phase II with Tedopi® in combination with an immune checkpoint inhibitor planned in advanced pancreatic cancer, in collaboration with GERCOR, a cooperative group of clinical research.
  • OSE-172, new generation checkpoint inhibitor targeting myeloid cells via the SIRP-α receptor - In preclinical development for several cancer models. Clinical program planned end of 2018.
  • OSE-703, cytotoxic monoclonal antibody against the alpha chain of IL-7R - Under a research collaboration with Memorial Sloan Kettering Cancer Center, New York.

In auto-immune diseases and transplantation:

  • FR104, CD28-antagonist in immunotherapy - Phase 1 trial completed – For the treatment of autoimmune diseases and for use with transplantation - Licensed to Janssen Biotech Inc. to pursue clinical development.
  • OSE-127, interleukin receptor-7 antagonist - In preclinical development for inflammatory bowel diseases and other autoimmune diseases. Clinical phase planned end of 2018. License option agreement with Servier for the development and commercialization.

The portfolio’s blockbuster potential gives OSE Immunotherapeutics the ability to enter global agreements at different stages of development with major pharmaceutical players.
Immunotherapy is a highly promising and growing market. By 2023 Immunotherapy of cancer could represent nearly 60% of treatments against less than 3% at present * and the projected market is estimated at $67 billion in 2018 **. There are more than 80 autoimmune diseases that represent a significant market including major players in the pharmaceutical industry with sales towards $10 billion for the main products. The medical need is largely unmet and requires the provision of new innovative products involved in the regulation of the immune system.

*Citi Research Equity
**BCC Research

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Contacts

OSE Immunotherapeutics
Sylvie Détry
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+33 143 297 857

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Forward-looking statements
This press release contains expressed or implied information and statements that might be deemed forward-looking information and statements in respect of OSE Immunotherapeutics. They do not constitute historical facts. These statements and information include financial projections that are based upon certain assumptions and assessments made by OSE Immunotherapeutics’ management in light of its experience and its perception of historical trends, current economic and industry conditions, expected future developments and other factors they believe to be appropriate.
These forward-looking statements include statements typically using conditional and containing verbs such as “expect”, “anticipate”, “believe”, “target”, “plan”, or “estimate”, their declensions and conjugations and words of similar import.
Although the OSE Immunotherapeutics management believes that the forward-looking statements and information are reasonable, the OSE Immunotherapeutics’ shareholders and other investors are cautioned that the completion of such expectations is by nature subject to various risks, known or not, and uncertainties which are difficult to predict and generally beyond the control of OSE Immunotherapeutics. These risks could cause actual results and developments to differ materially from those expressed in or implied or projected by the forward-looking statements. These risks include those discussed or identified in the public filings made by OSE Immunotherapeutics with the AMF. Such forward-looking statements are not guarantees of future performance.
This press release includes only summary information and should be read with the OSE Immunotherapeutics Reference Document filed with the AMF on 28 April 2017 under the number R.17-038, including the annual financial report for the fiscal year 2016, available on the OSE Immunotherapeutics’ website.
Other than as required by applicable law, OSE Immunotherapeutics issues this press release at the date hereof and does not undertake any obligation to update or revise the forward-looking information or statements.