Chronic Lymphocytic Leukemia
Conditions
Keywords
Antisense, mRNA antagonist, Bcl-2, CLL
Brief summary
The purpose of this study is to determine whether SPC2996 is effective and safe in the treatment of Chronic Lymphocytic Leukaemia (CLL)
Detailed description
Chronic Lymphocytic Leukaemia (CLL) is the most common leukaemia in adults in the US and most of Western Europe. Many patients suffering from CLL have tumour cells expressing high amounts of Bcl-2 protein. Since over expression of Bcl-2 inhibits apoptosis, it is possible that this gene participates in the pathogenesis of CLL. By lowering the Bcl-2 protein in these tumour cells the cells may go into apoptosis due to changed balance in pro- and anti apoptotic proteins and thereby it might be possible to induce a tumour response. The study is an open-labelled, international, multicenter, dose escalating phase I/II study where patients receive 6, 3, 2 or 1 dose(s) of SPC2996, a LNA antisense molecule against Bcl-2, over a period of up to 2 weeks, and are followed for 6 months.
Interventions
Sponsors
Study design
Eligibility
Inclusion criteria
* patients with relapsed or refractory Chronic Lymphocytic Leukaemia requiring therapy * screening blood sample must show circulating lymphocyte count of more then 5 x 109/L and circulating lymphocytes expressing the phenotype CD5+CD20+CD23+. * The PCR Bcl-2 m-RNA level must be positive * the patients must be 18 years or older and have given informed consent.
Exclusion criteria
* previous treatment with rituximab, alemtuzumab or autologous stem cell transplantation within 6 months prior to Visit 1 or allogeneic stem cell transplantation at any time * patients that received anti-cancer therapy, glucocorticoids or radiotherapy within 4 weeks prior to Visit 1 and patients with known or suspected transformation of CLL
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Change in Bcl-2 m-RNA levels | from Day 0 to Day 13 |
Secondary
| Measure | Time frame |
|---|---|
| Change in Bcl-2 protein expression. Change in Bcl-2 m-RNA levels (and other parameters) | from Day 0 to Day 14 and during study respectively |
Countries
Denmark, France, United Kingdom, United States