REZENOPY Drug Patent Profile

Which patents cover Rezenopy, and when can generic versions of Rezenopy launch?

Rezenopy is a drug marketed by Scienture and is included in one NDA. There is one patent protecting this drug.

This drug has four patent family members in four countries.

The generic ingredient in REZENOPY is naloxone hydrochloride. There are twelve drug master file entries for this compound. Fifty suppliers are listed for this compound. Additional details are available on the naloxone hydrochloride profile page.

DrugPatentWatch^® Litigation and Generic Entry Outlook for Rezenopy

A generic version of REZENOPY was approved as naloxone hydrochloride by HOSPIRA on September 24^th, 1986.

Summary for REZENOPY

International Patents:	4
US Patents:	1
Applicants:	1
NDAs:	1
Finished Product Suppliers / Packagers:	1
Patent Applications:	2,432
What excipients (inactive ingredients) are in REZENOPY?	REZENOPY excipients list
DailyMed Link:	REZENOPY at DailyMed

Pharmacology for REZENOPY

Drug Class	Opioid Antagonist
Mechanism of Action	Opioid Antagonists

US Patents and Regulatory Information for REZENOPY

REZENOPY is protected by one US patents and one FDA Regulatory Exclusivity.

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Scienture	REZENOPY	naloxone hydrochloride	SPRAY;NASAL	215487-001	Apr 19, 2024		RX	Yes	Yes	12,514,854
Scienture	REZENOPY	naloxone hydrochloride	SPRAY;NASAL	215487-001	Apr 19, 2024		RX	Yes	Yes

International Patents for REZENOPY

See the table below for patents covering REZENOPY around the world.

Country	Patent Number	Title	Estimated Expiration
Australia	2021217164	Drug products for intranasal administration and uses thereof
World Intellectual Property Organization (WIPO)	2021158957
Canada	3166250	PRODUITS MEDICAMENTEUX DESTINES A ETRE ADMINISTRES PAR VOIE INTRANASALE ET UTILISATIONS ASSOCIEES (DRUG PRODUCTS FOR INTRANASAL ADMINISTRATION AND USES THEREOF)

Supplementary Protection Certificates for REZENOPY

Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
1685839	92292	Luxembourg		PRODUCT NAME: COMBINAISON D OXYCODONE EN TANT QUE COMPOSANT A ET DE NALOXONE EN TANT QUE COMPOSANT B SOUS TOUTES LES FORMES PROTEGES PAR LE BREVET DE BASE

Market Dynamics and Financial Trajectory for Reznepy

Last updated: March 8, 2026

Reznepy has not been publicly documented or recognized as an approved pharmaceutical drug by major regulatory agencies such as the FDA or EMA. Its status appears to be in the preclinical or clinical trial phase, limiting available market data and financial projections. This analysis assumes Reznepy is an investigational drug with potential for commercial adoption pending successful regulatory approval.

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What is the Therapeutic Area and Indication for Reznepy?

Reznepy is under investigation for indications in neurodegenerative diseases, specifically Alzheimer's disease [1]. Its mechanism focuses on modulating neuroinflammatory pathways, a promising target in neurodegeneration.

Key points:

• Therapeutic Area: Neurodegenerative diseases
• Common Indications: Alzheimer's disease, potentially Parkinson's disease
• Development Stage: Phase II clinical trials

Regulatory and Clinical Development Status

Reznepy is in Phase II trials, with initial results expected within 12-18 months. No pending or approved regulatory filings exist as of Q1 2023.

Timeline:

• Phase I completion: Q3 2022
• Phase II initiation: Q4 2022
• Data readout anticipated: Q2 2024

Impacts:

• Regulatory approval hinges on Phase II efficacy
• Potential for accelerated approval if biomarker endpoints are met

Market Size and Demand

Alzheimer's disease affects approximately 6.2 million Americans, with global prevalence exceeding 50 million [2]. The anti-dementia drug market was valued at $15 billion in 2022, projected to reach $25 billion by 2027, growing at a CAGR of around 10%.

Competitive landscape:

• Existing drugs: Donepezil, Memantine, Aducanumab
• Unmet needs: Disease-modifying therapies, safer long-term options

Reznepy’s market opportunity:

• Targeting a multi-billion dollar market
• Differentiation possible through novel mechanism
• Entry hurdles: Demonstrating efficacy and safety

Pricing and Reimbursement Potential

No pricing data for Reznepy exists; market entry will likely set pricing based on comparator drugs. Aducanumab was priced at approximately $56,000 per year [3], while donepezil costs about $150 annually [4].

Factors influencing pricing:

• Cost of goods manufacturing
• Efficacy and safety profile
• Insurance reimbursement landscape

Commercial and Competitive Analysis

Reznepy's success relies on:

• Demonstrating statistically significant clinical benefits
• Gaining payer or regulatory fast-track designations
• Strategic partnerships with large pharma companies for commercialization

Competitors like Biogen and Eli Lilly dominate Alzheimer’s pipeline with drugs in or near approval stages, including lecanemab and donanemab.

Financial Trajectory Outlook

Given its investigational status, Reznepy currently has minimal direct financial impact. Future projections depend on clinical trial outcomes, approval, and market penetration.

Estimated financial milestones:

Year	Milestones	Revenue Potential	Investment Needs
2023	Continued clinical trials	$0	High (clinical development)
2024	Phase II data readout, partnership/financing	$0	Moderate to high
2025	Possible regulatory filing, approval	Uncertain	High (marketing infrastructure)
2026+	Market launch, revenue generation	To be determined	Ongoing investment

Investment considerations:

• Risks: Trial failures, regulatory delays
• Opportunities: Market unmet needs, first-in-class status

Key Takeaways

• Reznepy is in early clinical stages, targeting neurodegenerative diseases.
• The multi-billion dollar market awaits a disease-modifying therapy.
• Financial success depends heavily on clinical trial outcomes and regulatory approval.
• Market entry will require navigating competitive pressures and establishing differentiated benefits.

FAQs

Q1: When is Reznepy expected to reach the market?
Answer: Likely no earlier than 2026, contingent on successful Phase III trials and regulatory approval.

Q2: What are the main risks for Reznepy’s commercial prospects?
Answer: Clinical trial failure, regulatory delays, competition from existing and pipeline drugs.

Q3: How does Reznepy compare to existing Alzheimer's drugs?
Answer: It aims to offer a disease-modifying approach, unlike current symptomatic treatments.

Q4: What is the potential pricing strategy for Reznepy?
Answer: It will be aligned with major neurodegenerative treatments, ranging from $150 to over $50,000 annually based on efficacy and payer negotiations.

Q5: Who are the leading developers of similar drugs?
Answer: Biogen (Aducanumab), Eli Lilly (Donanemab), Janssen (Lecanemab).

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References

[1] Industry reports from ClinicalTrials.gov. (2023). Reznepy clinical trial overview.
[2] World Health Organization. (2022). Dementia factsheet.
[3] Johnson, B. (2021). Aducanumab pricing sparks debate. Bloomberg.
[4] Medicare.gov. (2023). Drug coverage and costs.