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Reviva Announces Enrollment Update for Open Label Extension Study Evaluating Brilaroxazine in Schizophrenia

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Reviva Pharmaceuticals announced an update on the ongoing 1-year open-label extension (OLE) study of Brilaroxazine in patients with schizophrenia. The study aims to assess the long-term safety and tolerability of the drug. As of November 12, 2024, 108 patients have completed 12 months of treatment, and over 250 patients have completed 6 months. Long-term safety data from 100 patients who completed one year of treatment is vital for the planned New Drug Application (NDA) to the FDA. Topline data from this study is expected in December 2024, with the full 12-month safety study concluding in Q1 2025.

Reviva Pharmaceuticals ha annunciato un aggiornamento sullo studio di estensione a lungo termine (OLE) di 1 anno in aperto riguardante Brilaroxazine nei pazienti con schizofrenia. Lo studio ha come obiettivo la valutazione della sicurezza e tollerabilità a lungo termine del farmaco. Al 12 novembre 2024, 108 pazienti hanno completato 12 mesi di trattamento e oltre 250 pazienti hanno completato 6 mesi. I dati sulla sicurezza a lungo termine provenienti da 100 pazienti che hanno completato un anno di trattamento sono fondamentali per la prevista Domanda di Nuovo Farmaco (NDA) alla FDA. I dati preliminari di questo studio sono attesi per dicembre 2024, con lo studio completo sulla sicurezza di 12 mesi che si concluderà nel primo trimestre del 2025.

Reviva Pharmaceuticals anunció una actualización sobre el estudio de extensión abierto de 1 año (OLE) de Brilaroxazine en pacientes con esquizofrenia. El estudio tiene como objetivo evaluar la seguridad y tolerancia a largo plazo del fármaco. Hasta el 12 de noviembre de 2024, 108 pacientes han completado 12 meses de tratamiento y más de 250 pacientes han completado 6 meses. Los datos de seguridad a largo plazo de 100 pacientes que completaron un año de tratamiento son vitales para la solicitada Nueva Solicitud de Medicamento (NDA) ante la FDA. Se esperan datos preliminares de este estudio en diciembre de 2024, con el estudio completo de seguridad de 12 meses concluyendo en el primer trimestre de 2025.

Reviva Pharmaceuticals는 정신분열증 환자를 대상으로 한 Brilaroxazine의 1년 개방형 연장(OLE) 연구에 대한 업데이트를 발표했습니다. 이 연구는 약물의 장기 안전성과 내약성을 평가하는 것을 목표로 하고 있습니다. 2024년 11월 12일 현재, 108명의 환자가 12개월 치료를 완료하였고, 250명 이상의 환자가 6개월 치료를 완료했습니다. 1년 치료를 완료한 100명의 환자로부터의 장기 안전성 데이터는 FDA에 제출할 계획인 신약 신청(NDA)에 필수적입니다. 이 연구의 주요 데이터는 2024년 12월에 발표될 예정이며, 12개월 안전성 연구는 2025년 1분기에 종료됩니다.

Reviva Pharmaceuticals a annoncé une mise à jour sur l'étude d'extension ouverte d'un an (OLE) concernant Brilaroxazine chez des patients atteints de schizophrénie. L'étude vise à évaluer la sécurité et la tolérance à long terme du médicament. Au 12 novembre 2024, 108 patients ont terminé 12 mois de traitement et plus de 250 patients ont terminé 6 mois. Les données de sécurité à long terme provenant de 100 patients ayant terminé un an de traitement sont essentielles pour la demande de nouveau médicament (NDA) prévue auprès de la FDA. Les données préliminaires de cette étude sont attendues en décembre 2024, avec l'étude complète de sécurité de 12 mois se terminant au premier trimestre 2025.

Reviva Pharmaceuticals hat ein Update zur laufenden einjährigen offenen Verlängerungsstudie (OLE) mit Brilaroxazine bei Patienten mit Schizophrenie bekannt gegeben. Ziel der Studie ist die Bewertung der langfristigen Sicherheit und Verträglichkeit des Medikaments. Am 12. November 2024 hatten 108 Patienten 12 Monate Behandlung abgeschlossen, und über 250 Patienten haben 6 Monate abgeschlossen. Langfristige Sicherheitsdaten von 100 Patienten, die ein Jahr Behandlung abgeschlossen haben, sind entscheidend für die geplante Neue Arzneimittelanmeldung (NDA) bei der FDA. Die ersten Ergebnisse dieser Studie werden im Dezember 2024 erwartet, wobei die vollständige Sicherheitsstudie über 12 Monate im ersten Quartal 2025 abgeschlossen sein wird.

Positive
  • 108 patients have completed 1-year of treatment.
  • Over 250 patients have completed 6-months of treatment.
  • Long-term safety data from 100 patients is a requirement for NDA submission to the FDA.
  • Topline data expected in December 2024.
Negative
  • Full 12-month safety study to complete in Q1 2025, indicating a prolonged timeline.

Insights

The enrollment update for brilaroxazine's open-label extension study reveals significant progress in collecting important long-term safety data. The milestone of 108 patients completing one year of treatment and over 250 patients reaching 6 months strengthens the company's NDA submission position. The FDA requirement of 100 patients with one-year safety data has been met, marking a critical regulatory checkpoint.

The tolerability profile across both acute and stable schizophrenia patients remains favorable, which is particularly important for long-term adherence in schizophrenia treatment. The inclusion of blood and digital biomarkers adds valuable objective measures to support efficacy claims. The study's completion timeline in Q1 2025, with topline data expected in December 2024, positions RVPH for a potential NDA submission in 2025.

This clinical progress represents a de-risking event for RVPH's lead asset. Meeting the FDA's safety data requirements is a important milestone for small-cap biotech companies, as it reduces regulatory uncertainty. With a market cap of just $31.4M, successful completion of this study could trigger significant value reassessment.

The structured approach to data collection, including both rollover and de novo subjects, strengthens the eventual regulatory package. The flexible dosing design (15, 30, or 50 mg) in the long-term phase demonstrates commercial foresight, as it allows for personalized treatment approaches that could enhance market adoption. Investors should monitor the December 2024 data readout as a key catalyst.

– 108 patients have completed 1-year of treatment –

– Brilaroxazine is generally well tolerated to date in patients with acute and stable schizophrenia –

– Topline data from 1-year open-label extension (OLE) trial now expected in December 2024 –

CUPERTINO, Calif., Nov. 12, 2024 (GLOBE NEWSWIRE) -- Reviva Pharmaceuticals Holdings, Inc. (NASDAQ: RVPH) (“Reviva” or the “Company”), a late-stage pharmaceutical company developing therapies that seek to address unmet medical needs in the areas of central nervous system (CNS), inflammatory and cardiometabolic diseases, today announced an enrollment update to the ongoing 1-year open-label extension (OLE) study evaluating the long-term safety and tolerability of brilaroxazine in patients with schizophrenia.

“We are pleased with the pace of enrollment of our OLE study which includes 108 patients that have completed 12 months of treatment and over 250 patients have completed 6 months of treatment. Importantly, we have collected long-term safety data in 100 patients with one year of treatment which is a requirement for our planned New Drug Application (NDA) submission to the Food and Drug Administration (FDA),” said Laxminarayan Bhat, Ph.D., Founder, President, and CEO of Reviva. “Brilaroxazine continues to be generally well tolerated across patients with acute and stable schizophrenia in the OLE study to date. We now expect to report topline 12-month long-term safety and efficacy data in December of 2024.”

RECOVER Trial OLE Enrollment Status Update as of November 12, 2024

  • Global trial progressing well
  • 108 patients have completed 1-year (12-month) of treatment
  • Over 250 patients have completed 6-months of treatment
  • Blood and digital biomarkers designed to independently support efficacy
  • Long-term safety data from 100 patients who have completed 12 months of treatment is a requirement for brilaroxazine’s NDA submission to the FDA
  • 12 months long-term safety study to complete in Q1 2025

The RECOVER Trial OLE is a randomized, double-blind, placebo-controlled, multicenter study to assess the efficacy and safety of brilaroxazine at fixed doses of 15 mg or 50 mg, administered once daily for 28 days in subjects with an acute exacerbation of schizophrenia, followed by the long-term safety assessment of brilaroxazine at flexible doses of either 15, 30 or 50 mg administered once daily for 52 weeks in subjects with stable schizophrenia. The OLE study will include both double-blind rollover and de novo subjects with stable schizophrenia.

About Brilaroxazine
Brilaroxazine is an in-house discovered new chemical entity with potent affinity and selectivity against key serotonin and dopamine receptors implicated in the pathophysiology of several conditions including schizophrenia, psoriasis and interstitial lung diseases like pulmonary hypertension, pulmonary arterial hypertension (PAH) and idiopathic pulmonary fibrosis (IPF).

Positive topline data from the global Phase 3 RECOVER trial in schizophrenia demonstrated the trial successfully met all primary and secondary endpoints with statistically significant and clinically meaningful reductions across all major symptom domains including reduction in key proinflammatory cytokines implicated in the pathophysiology of schizophrenia and comorbid inflammatory conditions at week 4 with 50 mg of brilaroxazine vs. placebo, with a generally well-tolerated side effect profile comparable to placebo and discontinuation rates lower than placebo. Positive data from a clinical drug-drug interaction (DDI) study investigating the potential effect of the CYP3A4 enzyme on brilaroxazine in healthy subjects supports no clinically significant interaction when combined with a CYP3A4 inhibitors. Reviva believes that a full battery of regulatory compliant toxicology and safety pharmacology studies has been completed for brilaroxazine. Reviva intends to develop brilaroxazine for other neuropsychiatric indications including bipolar disorder, major depressive disorder (MDD) and attention-deficit/hyperactivity disorder (ADHD).

Additionally, brilaroxazine has shown promising nonclinical activity for inflammatory diseases psoriasis, pulmonary arterial hypertension (PAH) and idiopathic pulmonary fibrosis (IPF) with mitigation of fibrosis and inflammation in translational animal models. Brilaroxazine has already received Orphan Drug Designation by the U.S. FDA for the treatment of PAH and IPF conditions. To learn more about the clinical and preclinical data available for brilaroxazine, please visit revivapharma.com/publications.

About Reviva 
Reviva is a late-stage biopharmaceutical company that discovers, develops, and seeks to commercialize next-generation therapeutics for diseases representing unmet medical needs and burdens to society, patients, and their families. Reviva’s current pipeline focuses on the central nervous system (CNS), inflammatory and cardiometabolic diseases. Reviva’s pipeline currently includes two drug candidates, brilaroxazine (RP5063) and RP1208. Both are new chemical entities discovered in-house. Reviva has been granted composition of matter patents for both brilaroxazine and RP1208 in the United States, Europe, and several other countries.

Forward-Looking Statements
This press release contains certain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 and the Private Securities Litigation Reform Act, as amended, including those relating to the Company’s 1-year open label extension (OLE) trial evaluating the long-term safety and tolerability for brilaroxazine in schizophrenia, the registrational Phase 3 RECOVER-2 trial, the Company’s expectations regarding the anticipated clinical profile of its product candidates, including statements regarding anticipated efficacy or safety profile, and those relating to the Company’s expectations, intentions or beliefs regarding matters including product development, clinical and regulatory timelines and expenses, planned or additional studies, planned or intended regulatory submissions, market opportunity, ability to raise sufficient funding, competitive position, possible or assumed future results of operations, business strategies, potential opportunities for development including partnerships, growth or expansion opportunities and other statements that are predictive in nature. These forward-looking statements are based on current expectations, estimates, forecasts and projections about the industry and markets in which we operate and management’s current beliefs and assumptions.

These statements may be identified by the use of forward-looking expressions, including, but not limited to, “expect,” “anticipate,” “intend,” “plan,” “believe,” “estimate,” “potential,” “predict,” “project,” “should,” “would” and similar expressions and the negatives of those terms. These statements relate to future events or our financial performance and involve known and unknown risks, uncertainties, and other factors which may cause actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. Such factors include those set forth in the Company’s most recent Annual Report on Form 10-K for the fiscal year ended December 31, 2023, and the Company’s other filings from time to time with the Securities and Exchange Commission. Prospective investors are cautioned not to place undue reliance on such forward-looking statements, which speak only as of the date of this press release. The Company undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise.

Corporate Contact:
Reviva Pharmaceuticals Holdings, Inc.
Laxminarayan Bhat, PhD
www.revivapharma.com

Investor Relations Contact:
LifeSci Advisors, LLC
Bruce Mackle
bmackle@lifesciadvisors.com


FAQ

What is the latest update on Reviva's Brilaroxazine study for schizophrenia?

As of November 12, 2024, 108 patients have completed 12 months of treatment and over 250 patients have completed 6 months in the ongoing 1-year open-label extension study.

When is the topline data for Brilaroxazine's 1-year OLE study expected?

Topline data from the 1-year open-label extension study is expected in December 2024.

How many patients have completed the 1-year treatment in the Brilaroxazine OLE study?

108 patients have completed the 1-year treatment in the Brilaroxazine open-label extension study.

What is required for Brilaroxazine's NDA submission to the FDA?

Long-term safety data from 100 patients who have completed 12 months of treatment is required for Brilaroxazine's NDA submission to the FDA.

When will the full 12-month safety study of Brilaroxazine be completed?

The full 12-month safety study of Brilaroxazine is expected to be completed in Q1 2025.

Reviva Pharmaceuticals Holdings, Inc.

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