Geron Announces New Overall Survival Data from IMbark in Imetelstat-Treated Patients

- December 4th, 2018

Geron (Nasdaq:GERN) today announced that results from IMbark, a Phase 2 clinical trial of imetelstat treatment in Intermediate-2 or High-risk myelofibrosis (MF) patients who are relapsed or refractory to a Janus Kinase (JAK) inhibitor, were presented at the 60th American Society of Hematology (ASH) Annual Meeting in San Diego, California. As quoted in the press … Continued

Geron (Nasdaq:GERN) today announced that results from IMbark, a Phase 2 clinical trial of imetelstat treatment in Intermediate-2 or High-risk myelofibrosis (MF) patients who are relapsed or refractory to a Janus Kinase (JAK) inhibitor, were presented at the 60th American Society of Hematology (ASH) Annual Meeting in San Diego, California.

As quoted in the press release:

IMbark is a Phase 2 clinical trial that evaluated two starting dose levels of imetelstat (either 4.7 mg/kg or 9.4 mg/kg administered by intravenous infusion every three weeks) in more than 100 patients with Intermediate-2 or High-risk MF who have relapsed after or are refractory to prior treatment with a JAK inhibitor. The oral presentation highlighted efficacy and safety data from the primary analysis, as well as overall survival data with a clinical cutoff of October 22, 2018 and a median follow up of approximately 27 months.

The co-primary efficacy endpoints for the trial are spleen response rate, defined as the proportion of patients who achieve a ≥35% reduction in spleen volume assessed by imaging; and symptom response rate, defined as the proportion of patients who achieve a ≥50% reduction in Total Symptom Score, at 24 weeks. Key secondary endpoints are safety and overall survival.

For the 9.4 mg/kg dosing arm (n=59), the spleen response rate was 10% (6/59) and the symptom response rate was 32% (19/59). In addition, improvement in bone marrow fibrosis was observed in 25% (15/59) of patients.

Click here to read the full press release.

 

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