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Clinical Trials

Date: 2016-05-25

Type of information: Amendment to the study protocol

phase: 1

Announcement: amendment to the study protocol

Company: Alkermes (Ireland)

Product: ALKS 4230 (RDB 1450) and Keytruda® (pembrolizumab)

Action mechanism:

  • fusion protein. ALKS 4230 is an engineered fusion protein designed to preferentially bind and signal through the intermediate affinity interleukin-2 (IL-2) receptor complex, thereby selectively activating and increasing the number of immunostimulatory tumor-killing immune cells while avoiding the expansion of immunosuppressive cells that interfere with anti-tumor response. The selectivity of ALKS 4230 is designed to leverage the proven anti-tumor effects while overcoming limitations of existing IL-2 therapy, which activates both immunosuppressive and tumor-killing immune cells.
  • monoclonal antibody/immune checkpoint inhibitor/immunotherapy product. Keytruda® (pembrolizumab - MK-3475) is an highly selective monoclonal anti-PD-1 antibody designed to restore the natural ability of the immune system to recognize and target cancer cells by selectively achieving dual ligand blockade (PD-L1 and PD-L2) of the PD-1 protein. By blocking PD-1, pembrolizumab enables activation of the immune system’s T-cells that target cancer by essentially releasing a brake on the immune system. Pembrolizumab is being evaluated across more than 30 types of cancers, as monotherapy and in combination. It has received a Breakthrough Therapy designation for advanced melanoma, for the treatment of patients with Epidermal Growth Factor Receptor (EGFR) mutation-negative, and Anaplastic Lymphoma Kinase (ALK) rearrangement-negative non-small cell lung cancer (NSCLC) whose disease has progressed on or following platinum-based chemotherapy. In November 2015, the FDA has granted Breakthrough Therapy Designation to Keytruda® for the treatment of patients with microsatellite instability high (MSI-H) metastatic colorectal cancer.

Disease: advanced solid tumors

Therapeutic area: Cancer - Oncology

Country: USA

Trial details:

  • The Alkermes -sponsored phase 1 study for ALKS 4230 includes three distinct stages: the ongoing monotherapy dose-escalation stage, the planned monotherapy dose-expansion stage and the newly initiated combination therapy stage with pembrolizumab. The dose-escalation stage is designed to determine a maximum tolerated dose of ALKS 4230 in a monotherapy setting and to identify the optimal dose range of ALKS 4230 based on measures of immunological-pharmacodynamic effects. Upon completion of the dose-escalation stage, the company expects to initiate the monotherapy dose-expansion stage in up to 42 patients with renal cell carcinoma or melanoma. The newly initiated combination therapy stage of the phase 1 study will assess the safety profile and anti-tumor activity of ALKS 4230 with pembrolizumab in up to 148 patients with select advanced solid tumors. This combination therapy stage will be run independent of, and concurrently with, the monotherapy dose-escalation and dose-expansion stages of the trial.
  • Anti-tumor response and duration of response assessments in the dose-expansion and combination stages of the phase 1 study will be based on investigator-assessed, immune-related response (irRC) criteria and independent, central, blinded radiographic review per Response Evaluation Criteria in Solid Tumors (RECIST 1.1) criteria. (NCT02799095)

Latest news:

  • • On September 10, 2018, Alkermes  announced that it has expanded its ongoing phase 1 study for ALKS 4230, the company's immuno-oncology drug candidate, to evaluate its safety and anti-tumor activity when administered in combination with the FDA -approved PD-1 inhibitor Keytruda® (pembrolizumab) in patients with advanced solid tumors. "There is strong scientific rationale supporting the combination of PD-1 pathway inhibition with cytokine therapy such as ALKS 4230 to activate the body's own immune system to fight cancer, and the potential synergies of ALKS 4230 and pembrolizumab on anti-tumor activity may expand treatment options for patients in a variety of tumor settings," said Craig Hopkinson , M.D., Chief Medical Officer and Senior Vice President of Medicines Development and Medical Affairs at Alkermes .
  • Evaluation of the safety and anti-tumor activity of ALKS 4230 in combination with pembrolizumab will be assessed in certain PD-1 approved tumor types in both refractory and treatment naïve patients, including non-small cell lung cancer (NSCLC), head and neck squamous cell carcinoma, gastric cancer, urothelial carcinoma and microsatellite instability-high cancers. Melanoma and renal cell carcinoma will also be evaluated in the cohort of treatment naïve patients. The combination of ALKS 4230 and pembrolizumab will also be assessed in certain PD-1 unapproved tumor types, including colorectal cancer, triple-negative breast cancer, ovarian carcinoma, soft tissue sarcomas, and patients with metastatic NSCLC whose tumors express low or undetectable PD-L1 (tumor proportion score <1%). 
  • • On May 25, 2016, Alkermes  announced the initiation of a phase 1 clinical study of the company's immuno-oncology drug candidate, ALKS 4230 (formerly referred to as RDB 1450), a novel Selective Effector Cell Activator (SECA™) protein designed for targeted interleukin-2 (IL-2) receptor activation. The multi-center phase 1 study is designed to evaluate the safety, tolerability and immunological-pharmacodynamic effects of ALKS 4230 in the treatment of patients with solid tumors. The phase 1 study will be conducted in two stages: a dose-escalation stage followed by a dose-expansion stage. In the first stage of the study, ALKS 4230 will be administered as an intermittent intravenous infusion with ascending doses in patients with solid tumors who are refractory or intolerant to established therapies. This first stage of the study is designed to determine a maximum tolerated dose, and to identify the optimal dose range of ALKS 4230 based on measures of immunological-pharmacodynamic effects. Following the identification of the optimal dose range of ALKS 4230 in the first stage of the study, the dose-expansion stage of the study will evaluate ALKS 4230 in patients with selected solid tumor types. Initial results from the first stage of the phase 1 study are expected in 2017. This initial clinical study of ALKS 4230 has been designed to position Alkermes for phase 2 studies, including those that may include ALKS 4230 in combination with other immuno-oncology therapies.

Is general: Yes