Dynavax Reports Modified Intent to Treat Analysis From the HEPLISAV(TM) Phase 3 Trial in Healthy Adults Over Age 40
The data demonstrate HEPLISAV's ability to generate a faster, higher, and longer-lasting response as compared to Engerix-B in both the per protocol and the modified intent to treat populations, as follows:
- For the MITT population, HEPLISAV provided earlier seroprotection than Engerix-B. At the primary endpoint visit, Week 12 for HEPLISAV and Week 32 for Engerix-B, the SPR in the HEPLISAV group was 89% compared to 69 % in the Engerix-B group.
- In the previously reported per protocol analysis, at the primary endpoint visit, Week 12 for HEPLISAV and Week 32 for Engerix-B, the SPR in the HEPLISAV group was 90% compared to 71% in the Engerix-B group.
- In the previously reported per protocol analysis, at the primary endpoint visit, Week 12 for HEPLISAV and Week 32 for Engerix-B, the SPR in the HEPLISAV group was 90% compared to 71% in the Engerix-B group.
- For the MITT population, HEPLISAV also provided higher rates of seroprotection than Engerix-B. The peak SPR for the HEPLISAV group was 95% at Week 24. The peak SPR for the Engerix-B group was 71% at Week 28.
- As previously reported for the per protocol analysis, the peak SPR for the HEPLISAV group was 95% at Week 24. The peak SPR for the Engerix-B group was 73% at Week 28.
- As previously reported for the per protocol analysis, the peak SPR for the HEPLISAV group was 95% at Week 24. The peak SPR for the Engerix-B group was 73% at Week 28.
- For the MITT population, HEPLISAV provided longer-lasting antibody than Engerix-B, and the immune response to HEPLISAV was longer-lasting than the immune response to Engerix-B. The SPR in the HEPLISAV group was 92% at Week 52 while the SPR in the Engerix-B group was 59% at Week 52.
- As previously reported for the per protocol analysis, the SPR in the HEPLISAV group was 92% at Week 52 while the SPR in the Engerix-B group was 59% at Week 52.
- As previously reported for the per protocol analysis, the SPR in the HEPLISAV group was 92% at Week 52 while the SPR in the Engerix-B group was 59% at Week 52.
- The safety of HEPLISAV was similar to Engerix-B. The rates of local and systemic post-immunization reactions, adverse events, serious adverse events, and autoimmune adverse events were similar in both groups.
According to
Engerix-B® is a registered trademark of GlaxoSmithKline
About HEPLISAV
HEPLISAV is an investigational adult hepatitis B vaccine. In an earlier completed pivotal Phase 3 trial, HEPLISAV demonstrated increased, rapid protection with fewer doses than current licensed vaccines.
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Forward-Looking Statements
This press release contains "forward-looking statements," that are subject to a number of risks and uncertainties. Actual results may differ materially from those set forth in this press release due to the risks and uncertainties inherent in our business, including whether successful clinical and regulatory development and approval of HEPLISAV and our process for its manufacture can occur in a timely manner or without significant additional studies or difficulties or delays in development or clinical trial enrollment, whether our studies can support registration for commercialization of HEPLISAV; the results of clinical trials and the impact of those results on the initiation and completion of subsequent trials and issues arising in the regulatory process, including the outcome of pre-filing discussions with regulatory authorities; the Company's ability to obtain additional financing to
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