|View printer-friendly version|
Zynerba Pharmaceuticals Announces Twelve Month ZYN002 Data from STAR 2 Study in Patients with Focal Seizures at the 2018 Annual Meeting of the American Academy of Neurology (AAN)
Continued Improvement in Seizure Control Seen in Adult Refractory Focal Seizure Patients Receiving ZYN002 through 12 Months of Open Label Exposure
In a poster presentation entitled, “Transdermal Cannabidiol (CBD) Gel for the Treatment of Focal Epilepsy in Adults” (poster P4.468), Dr. John Messenheimer presents additional data from ongoing STAR 2 (Synthetic Transdermal CAnnabidiol for the TReatment of Epilepsy) 24-month open label extension study evaluating ZYN002 cannabidiol (CBD) transdermal gel in adult patients with focal seizures. The presentation includes data through twelve months of open label exposure to ZYN002.
The key findings include that responses to ZYN002 in the STAR 2 open label extension, as measured by reductions in focal seizures from the baseline period of STAR 1, are associated with continued treatment with ZYN002. In addition, ZYN002 was shown to be well tolerated through 12 months of treatment in STAR 2.
“These data continue to suggest that focal seizures may be reduced with longer-term exposure to transdermally-delivered CBD,” said Dr. Liza Squires, Zynerba’s Chief Medical Officer. “In this population of patients, the use of ZYN002 for an additional 12 months in STAR 2 was well tolerated and appeared to result in clinically meaningful seizure reductions both across and within the originally randomized STAR 1 groups. These data continue to provide insight into the potential for ZYN002 in certain epilepsies, and we look forward to initiating a Phase 2b study in adult refractory focal seizures in the second half of 2018.”
The data presented in the poster are as follows:
- 188 patients were randomized, 186 were analyzed for efficacy, and 174 completed
- 171 patients (98% of STAR 1 completers) continued into STAR 2;
- As of
December 12, 2017, 95 patients remained in the STAR 2 study;
- Patients were taking a wide range of antiepileptic drugs (AEDs), the most common of which are levetiracetam, carbamazepine, lamotrigine, lacosamide, and valproate.
- In STAR 2, longer term exposure to ZYN002 resulted in greater improvements in seizure frequency among all ZYN002-treated patients;
- Longer term exposure to ZYN002 appeared to result in clinically meaningful reductions in seizures both across and within originally randomized STAR 1 patient groups:
- Compared to baseline, the median changes in seizure rates at months 3, 6, 9, and 12 of STAR 2 across all ZYN002-treated patients at each time point were:
— 25% reduction at month 3 (N=171)
— 36% reduction at month 6 (N=146)
— 49% reduction at month 9 (N=112)
— 58% reduction at month 12 (N=70)
- A photo accompanying this announcement is available at: http://resource.globenewswire.com/Resource/Download/1d9eb21b-8ff9-40e4-be0f-db0561d94621
- Compared to baseline, the median changes in seizure rates at months 3, 6, 9, and 12 of STAR 2 in patients initially treated with placebo or ZYN002 in STAR 1 were:
|Median Change (%) in Seizure Rates in STAR 2 Study|
|Month 3||Month 6||Month 9||Month 12|
|Placebo (STAR 1)||-10 (n=60)||-16 (n=49)||-41 (n=37)||-57 (n=24)|
|ZYN002 195 mg (STAR 1)||-32 (n=56)||-48 (n=49)||-55 (n=39)||-63 (n=25)|
|ZYN002 390 mg (STAR 1)||-31 (n=55)||-38 (n=48)||-46 (n=36)||-59 (n=21)|
- A photo accompanying this announcement is available at: http://resource.globenewswire.com/Resource/Download/e17084af-5352-4851-8843-556420cf1e73
- ZYN002 was well tolerated with good skin tolerability;
- In STAR 2, the most common treatment-emergent AEs (> 7.5%) were upper respiratory tract infection (viral and bacterial [17%]) and headache (11%);
- One serious AE was considered possibly related to ZYN002 (increased anxiety);
- There were no clinically significant abnormal liver AEs (i.e. alanine aminotransferase/aspartate aminotransferase) >3x upper limit of normal reported for patients receiving ZYN002.
A copy of the poster presentation is currently available on the Zynerba corporate website at: http://zynerba.com/publications/
Zynerba’s ZYN002 CBD gel is the first and only pharmaceutically-produced CBD formulated as a patent-protected permeation-enhanced gel and is being studied in children with Fragile X Syndrome, adult epilepsy patients with focal seizures and osteoarthritis. ZYN002 is a clear, permeation-enhanced gel that is designed to provide controlled drug delivery transdermally with once- or twice-daily dosing.
Cautionary Note on Forward-Looking Statements
This press release contains forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995. We may, in some cases, use terms such as “predicts,” “believes,” “potential,” “proposed,” “continue,” “estimates,” “anticipates,” “expects,” “plans,” “intends,” “may,” “could,” “might,” “will,” “should” or other words that convey uncertainty of future events or outcomes to identify these forward-looking statements. Such statements are subject to numerous important factors, risks and uncertainties that may cause actual events or results to differ materially from the Company’s current expectations. For example, there can be no guarantee that the Company will obtain approval for ZYN002 or ZYN001 from the
Will Roberts, VP Investor Relations and
Source: Zynerba Pharmaceuticals, Inc.