GALE
Presenta buenos datos de seguridad y dice que pasan a fase II
The poster presentation entitled "Phase 1 Trial Results of a Folate Receptor Alpha-directed Cancer Vaccine (E39) in Ovarian and Endometrial Cancer Patients to Prevent Recurrence," showed that the FBP vaccine is both safe and immunogenic. The primary outcome of the Phase 1 trial was to determine safety and the optimal dose, with a secondary outcome to look for an initial efficacy signal and immunological response. The optimal dose was determined to be 500 mcg peptide combined with 250 mcg GM-CSF. FBP proved to be well tolerated, with largely Grade 1 toxicities, primarily consisting of injection site reactions. After a median follow-up of six months, there have been 2 recurrences (13.3%; n=15) in the vaccine group vs. 4 recurrences (25%, n=16) in the control group, although the trial was not powered for any efficacy measurements.
"New approaches are needed for ovarian and endometrial cancer patients who face a high risk of disease recurrence. The initial results from the Phase 1 trial show that the FBP vaccine may be a potential cancer immunotherapy treatment to prevent recurrence in these high risk patient populations," concluded Dr. Erika J. Schneble, San Antonio Military Medical Center, San Antonio, TX who presented the results at the SITC conference.
The Phase 1 component was a 3x3, dose-escalation, safety trial enrolling disease-free endometrial and ovarian cancer, HLA-A2 positive patients into the vaccine group, while HLA-A2 negative patients were being followed prospectively as an untreated control group. Six monthly intradermal inoculations of either 100mcg, 500mcg, or 1000mcg of peptide vaccine + 250 mcg GM-CSF immunoadjuvant were administered during the primary vaccine series. Immunologic responses were assessed by both local reaction after each inoculation and by delayed-type hypersensitivity (DTH) reaction measured pre-vaccination and after the primary vaccine series. Recurrences are determined clinically. Thirty-one patients were enrolled in the Phase 1 trial: 15 in the vaccine group and 16 in the active control group. There were no significant differences in age, grade, stage, or nodal status between groups. Overall, the vaccine was well tolerated with the majority of local and systemic toxicities Grade 1 (maximum local toxicity: 93% Grade 1; maximum systemic toxicity: 60% Grade 1). Local skin reactions increased from the first to the third injections, and then plateaued for the remainder of therapy.
"We are encouraged by the initial results of our Phase 1 trial with the FBP vaccine, showing that it is well-tolerated and demonstrated promising immune responses in high risk gynecological cancers," said Mark J. Ahn, President and Chief Executive Officer of Galena Biopharma. "As a result, we are moving forward with the Phase 2a component which will be initiated by year end and will include the enrollment of additional patients at the optimal dose as well implementing a booster regimen."
«Después de nada, o después de todo/ supe que todo no era más que nada.»