Tag: Micromet

Company News: Study Demonstrates Micromet’s Blinatumomab Produces High Single-Agent Activity in Patients with Relapsed Acute Lymphoblastic Leukemia

75% of patients achieved a complete remission, with no evidence of remaining leukemic cells in blood or bone marrow
– Data add to a growing body of clinical evidence demonstrating blinatumomab’s potential to be used across the course of the disease

Data to be presented tomorrow at the 16th Annual Meeting of the European Hematology Association (EHA) in London, UK, show that Micromet’s blinatumomab produced a high complete remission rate in adult patients with acute lymphoblastic leukemia (ALL) who had relapsed following treatment with standard therapy. 1 Blinatumomab is the most advanced of a new class of agents called BiTE® antibodies, designed to harness the body’s T cells to kill cancer cells.

Interim results from this phase 2 single-arm trial showed that 75% of patients (9 of 12) achieved a complete remission (CR) or CR with partial recovery of blood counts (CRh*) following treatment with blinatumomab.  All nine responding patients achieved a complete molecular response, or had no evidence of leukemic cells in their bone marrow, a key prognostic factor for patient survival.  Notably, four patients with genetic abnormalities typically associated with poorer outcomes all achieved a CR or CRh*.

Current treatment for Philadelphia negative relapsed/refractory ALL consists of combinations of toxic chemotherapy drugs that in the majority of cases fail to drive the disease into remission.  In more than 30 years, no new drug has been approved for use in this setting, leaving physicians with few options to improve long-term patient outcomes other than variations in the dose and schedule of old drugs with limited efficacy.  With current approaches, complete remission rates range from 17-45%. 2-6 Standard chemotherapy is associated with a mortality rate of up to 23%. 7 The average five-year survival rate for adult ALL patients after first relapse is 7%. 5

 

Click here to read the abstract

 

References:

  1. Topp, M.S. et. al. Haematologica. 2011; abstract no. 844
  2. Kantarjian H, et al. Cancer. 2010;116:5568–5574.
  3. Advani AS, et al. Br J Haematol. 2010;151(5):430.
  4. Oriol A, et al. Haematologica. 2010;98(4):589-596.
  5. Fielding  A, et al. Blood. 2007;109(3):944-950.
  6. O’Brien S, et al. Cancer. 2008;113:3186–3191.
  7. Bassan R, et al. J Clin Oncol. 2011;29(5):532-543.

Company News: Micromet’s BiTE Antibody MT112/BAY 2010112 Demonstrates Potent Activity against Human Prostate Cancer Cells

Micromet, Inc. (NASDAQ: MITI) yesterday evening announced the presentation of pre-clinical data on its BiTE antibody MT112/BAY 2010112, discovered and developed in collaboration with Bayer HealthCare Pharmaceuticals, at the 102nd Annual Meeting of the American Association for Cancer Research (AACR) in Orlando, Florida.

The data (poster # 4561) demonstrate the potent activity of the BiTE antibody against human cancer cell lines and inhibition of tumor growth in animal models.  MT112/ BAY 2010112 directed human and non-human primate T cells against PSMA-positive human prostate cancer cells, resulting in highly efficient cancer cell destruction. In mice, daily doses of MT112/BAY 2010112 as low as 0.05 milligram/kilogram were sufficient to inhibit growth of tumors from human prostate cancer cells.

During the course of the meeting, the Company also presented preclinical data on MT110, its BiTE antibody targeting epithelial cell adhesion molecule (EpCAM).  Results reported (poster # 1790) provide further validation of EpCAM as a cancer stem cell target, and show utility of MT110 to eradicate cancer stem cells derived from breast and hepatocellular carcinoma.

Company News: Micromet Announces IND for MT111 Trial Obtained by Partner MedImmune

Micromet, Inc. (NASDAQ: MITI) today announced that MedImmune, licensee for Micromet’s MT111, plans to initiate a Phase 1 trial in patients with advanced gastrointestinal cancers based on an investigational new drug (IND) application recently accepted by the U.S. Food and Drug Administration (FDA).

MT111, also known as MEDI-565, is a BiTE® antibody designed to direct a patient’s T cells, the body’s most potent killer cells, against cancer cells that express carcinoembryonic antigen (CEA). CEA is a protein found on the surface of a number of gastrointestinal cancers, including colorectal, esophageal and gastric cancers.

MT111 will be Micromet’s third BiTE antibody to progress to clinical trials. Moreover, MedImmune’s decision demonstrates its ongoing confidence in the BiTE principle. Last year, MedImmune had decided to hand back to Micromet all rights to blinatumomab, a BiTE molecule in development for blood cancers.
Blinatumomab last months entered a pivotal trial in adult patients with MRD-positive acute lymphoblastic leukemia (ALL) and a Phase II trial in adult patients with relapsed/refractory ALL.

Company News: Micromet Initiates Pivotal Study of Lead Compound Blinatumomab

Micromet Inc (NASDAQ:MITI), a biotech company located in the US and in Germany, today announced the start of two Phase II trials of Blinatumomab, a so-called BiTE antibody which is designed to recruit T killer cells of the patient’s body to the cancer cells.

The so-called BLAST study (Blinatumomab Adult ALL MRD Study of T cell engagement) is designed to evaluate the efficacy, safety and tolerability of blinatumomab in up to 130 adult patients suffering from B-precursor acute lymphoblastic leukemia (ALL) who received chemotherapy but still have leukemia cells in the bone marrow (so-called minimal residual disease – MRD). About 70 centers in Europe and the US will take part in the study which will take about 2 years to complete. Primary endpoint is MRD response, i.e. disappearance of leukemia cells in the bone marrow.

If successful, the study could  serve as the basis for filing for approval.

A further Phase II study initiated today is designed to evaluate the efficacy, safety and tolerability of blinatumomab in 20 adult patients suffering from B-precursor acute lymphoblastic leukemia (ALL) who are resistant or intolerant to standard chemotherapy.

Details can be found in the press releases describing the BLAST trial and the refractory ALL trial.

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