Oncolytics Announces Positive Results of Phase II REOLYSIN® and Radiation Combination Clinical Trial
News Apr 08, 2009
Oncolytics Biotech Inc. has announced positive results in its U.K. Phase II clinical trial to evaluate the objective tumor response rate of REOLYSIN® in combination with low-dose radiation in patients with advanced cancers.
A total of 16 heavily pretreated patients with advanced cancer (melanoma (5), colorectal (4), gastric (1), pancreas (1), ovarian (1), lung (1), cholangiocarcinoma (1), sinus (1), and thyroid (1)) were enrolled in the trial. Most patients had received prior chemotherapy (13 patients) or radiation (5 patients).
Of 14 patients evaluable for response, 13 patients had stable disease (SD) or better in the treated target lesions. Of these, partial responses (PR) were observed in four patients (lung, melanoma (2) and gastric) and minor responses were observed in two patients (thyroid, ovarian), for a total disease control rate (stable disease + partial response + complete response) of 93% in the treated lesions. The combination was well tolerated, with only mild (Grade 1 or 2) toxicities noted.
"This is a very high disease control rate in patients who have undergone prior therapies," said Dr. Brad Thompson, President and CEO of Oncolytics. "This combination resulted in marked responses or stabilization in the treated target lesions for most of the patients. These results are expected to allow us to pursue REOLYSIN in combination with radical radiotherapy in future clinical trials."
The trial (REO 008) was an open-label, single-arm, multi-centre Phase II study of REOLYSIN delivered via intratumoural injection to patients during treatment with low-dose fractionated radiotherapy. 20 Gy of radiation was given in five consecutive daily 4 Gy fractions combined with two intratumoural injections of REOLYSIN (1x10(10) TCID (50)) on days two and four.
The primary endpoint was objective tumor response rate in treated lesions. Secondary endpoints were to evaluate viral replication, immune response, and safety. Eligible patients included those diagnosed with advanced or metastatic cancers that are refractory (have not responded) to standard therapy or for which no curative standard therapy exists. The Phase II trial followed a successful Phase Ia/Ib combination REOLYSIN/radiation trial in which local and systemic responses were noted.
The Principal Investigator for the trial is Dr. Kevin Harrington of the Targeted Therapy Laboratory, Cancer Research UK Centre for Cell and Molecular Biology at The Institute of Cancer Research and Honorary Consultant in Clinical Oncology at The Royal Marsden NHS Foundation Trust.
New Partnership to Provide Bioanalytical and DMPK ServicesNews
Concept Life Sciences, the integrated drug discovery, development and analytical services company, and Alderley Analytical, bioanalytical Contract Research Organisation (CRO), today announced they have signed a partnership agreement to provide high-value bioanalytical and DMPK study services.
Arrow Poison Potential Male Birth ControlNews
Women have many options for oral contraceptives that are safe, effective and reversible, but despite decades of research, men have none. Now, scientists report a rat study that shows they finally have a good lead for a male birth control pill. It's based on ouabain, a plant extract that African warriors and hunters traditionally used as a heart-stopping poison on their arrows.READ MORE