ZUG, Switzerland, March 18, 2023 (GLOBE NEWSWIRE) — Pharvaris (Nasdaq: PHVS ), a clinical-stage company developing novel oral bradykinin B2 receptor antagonists for the treatment and prevention of hereditary angioedema (HAE) attacks, announced in today an oral presentation of positive data from its Phase 2 RAPIDe-1 study of PHVS416 for the on-demand treatment of seizures at the 2023 HAEi Regional Conference APAC, taking place in Bangkok, Thailand, 17-19 March 2023.
- Title: Efficacy and Safety of Bradykinin B2 Receptor Inhibition with Oral PHVS416 for the Treatment of Hereditary Angioedema Attacks: Results of the RAPIDe-1 Phase 2 Trial
- Speaker: Marc A. Riedl, MD, MS, Professor of Medicine, Clinical Director of the US Hereditary Angioedema Association (HAEA) Angioedema Center at the University of California San Diego (UCSD), and Clinical Service Chief of Allergy/Immunology at UCSD
- Date time: Saturday 18 March at 11:35 a.m. CT (12:35 p.m. EDT)
Dr. Riedl commented, “Currently approved on-demand therapies for HAE attacks are administered intravenously or subcutaneously and may be associated with treatment burden. The time required for preparation and administration, as well as the potential occurrence of pain, discomfort, or other reactions at the injection site can lead to treatment delays or untreated HAE symptoms. There is an unmet need for on-demand oral treatments that are effective and well-tolerated and that can reduce treatment burden, allowing rapid administration as recommended by clinical guidelines. The consistent results on across all endpoints in the RAPIDe-1 trial provides evidence supporting the efficacy and well-tolerated profile of PHVS416 for the treatment of HAE attacks and provides the basis for its further development as a potential on-demand therapy.”
RAPIDe-1 is a phase 2, double-blind, placebo-controlled, randomized, cross-over, dose-ranging trial of PHVS416, the oral softgel capsule formulation of PHA121, for the treatment of HAE type 1 and type 2 (HAE- 1/2) attacks. The trial enrolled participants in Canada, Europe, Israel, Great Britain and the United States. Eligible participants were between 18 and 75 years of age, diagnosed with HAE type I or II, and experienced three or more attacks in the last four months or two or more attacks in the last two months prior to screening.
74 participants were enrolled, and 62 of them experienced 147 qualifying HAE episodes treated with double-blind study drug (either placebo or PHVS416 10, 20, or 30 mg doses). Analysis of the primary endpoint showed that PHVS416 significantly (p<0.0001; nominal p-value for 10 mg dose) reduced attack symptoms as measured by change in mean 3-symptom composite (skin pain, skin swelling, abdominal pain) visual analogue scale (VAS) -3) scores during HAE attacks at four hours compared to placebo (LS mean difference in change in VAS-3: -16.75, -15.02 and -16.28 for PHVS416 10, 20 and 30, respectively mg vs. placebo). All important secondary efficacy endpoints were also met. Participants on PHVS416 also used significantly less rescue medication compared to placebo (10 mg=18.9%, 20 mg=10.7%, 30 mg=6.5%, placebo=60.8%). PHVS416 was generally well tolerated with three treatment-related adverse events (TRAEs) reported for one PHVS416 30 mg-treated seizure (2.8%) and one TRAE reported for one placebo-treated seizure (1.9%).
The presentation slides will be available on the Investors section of the Pharvaris website at: https://ir.pharvaris.com/news-events/events-presentations.
PHVS416 is an investigational softgel capsule formulation containing PHA121, a highly potent, specific and orally bioavailable competitive antagonist of the bradykinin B2 receptor. Pharvaris aims to develop this formulation to provide rapid and reliable symptom relief through rapid exposure of attack-relieving therapy in a convenient, small oral dosage form. PHVS416 is currently in Phase 2 clinical development outside the US for on-demand and proof-of-concept prophylactic treatment of HAE.
Pharvaris is a clinical-stage company developing novel oral bradykinin B2 receptor antagonists for the treatment and prevention of HAE attacks, building on its deep roots in HAE. By directly targeting this clinically proven therapeutic target with novel small molecules, the Pharvaris team strives to offer people with all subtypes of HAE safe, effective and practical alternatives for treating attacks, both on-demand and prophylactically. The company brings together the best talent in the industry with deep expertise in rare diseases and HAE. For more information, visit https://pharvaris.com/.
This press release contains certain forward-looking statements that involve significant risks and uncertainties. All statements contained in this press release that do not relate to matters of historical fact should be considered forward-looking statements, including, without limitation, statements containing the words “believes,” “anticipates,” “expects,” “estimates,” “may, “could,” “should,” “would,” “will,” “intends” and similar expressions. These forward-looking statements are based on management’s current expectations, are neither promises nor guarantees, and involve known and unknown risks, uncertainties and other important factors , that could cause Pharvaris’ actual results, performance or performance to differ materially from its expectations expressed or implied by the forward-looking statements. Such risks include, but are not limited to, the following: uncertainty in the outcome of our interactions with regulatory authorities; including the FDA with respect to the clinical holds of PHA121 clinical trials in the United States; the expected timing, progress or success of our clinical u development programs, particularly for PHVS416 and PHVS719, which are in mid-stage global clinical trials and are currently on hold in the United States as a result of the clinical holds; risks arising from epidemic diseases, such as the COVID-19 pandemic, which may adversely affect our business, non-clinical studies and clinical trials; the timing of our rodent toxicology study; the timing of regulatory approvals; the value of our common stock; the timing, costs and other constraints involved in obtaining regulatory approval for our product candidates PHVS416 and PHVS719 or any other product candidate that we may develop in the future; our ability to establish commercial capabilities or enter into agreements with third parties to market, sell and distribute our product candidates; our ability to compete in the pharmaceutical industry and with competitive generic products; our ability to market, commercialize and achieve market acceptance for our product candidates; our ability to raise capital when necessary and on acceptable terms; regulatory developments in the US, EU and other jurisdictions; our ability to protect our intellectual property and know-how and operate our business without infringing on the intellectual property rights or regulatory exclusivity of others; our ability to manage adverse consequences from changes in applicable laws and regulations, including tax laws, our ability to successfully remediate the material weakness in our internal control over financial reporting and to maintain an effective system of internal control over financial reporting; changes and uncertainty in general market conditions, political and economic conditions, including as a result of inflation and the current conflict between Russia and Ukraine; and the other factors described under the headings “Cautionary Statement Regarding Forward-Looking Statements” and “Item 3. Key Information – D. Risk Factors” in our Annual Report on Form 20-F and other periodic filings with the Securities and Exchange Commission.
These and other important factors could cause actual results to differ materially from those indicated by the forward-looking statements in this press release. Such forward-looking statements represent management’s estimates as of the date of this press release. New risks and uncertainties may emerge from time to time, and it is not possible to predict all risks and uncertainties. Although Pharvaris may choose to update such forward-looking statements at some point in the future, Pharvaris disclaims any obligation to do so even if subsequent events cause its views to change. These forward-looking statements should not be relied upon as representing the views of Pharvaris as of any date subsequent to the date of this press release.
Director of Corporate Relations