GOZELLIX Drug Patent Profile

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

Gozellix is a drug marketed by Telix Innovations and is included in one NDA. There is one patent protecting this drug.

This drug has forty-six patent family members in nineteen countries.

The generic ingredient in GOZELLIX is gallium ga-68 gozetotide. There are sixteen drug master file entries for this compound. Six suppliers are listed for this compound. Additional details are available on the gallium ga-68 gozetotide profile page.

DrugPatentWatch^® Generic Entry Outlook for Gozellix

By analyzing the patents and regulatory protections it appears that the earliest date for generic entry will be July 28, 2035. This may change due to patent challenges or generic licensing.

There have been six patent litigation cases involving the patents protecting this drug, indicating strong interest in generic launch. Recent data indicate that 63% of patent challenges are decided in favor of the generic patent challenger and that 54% of successful patent challengers promptly launch generic drugs.

Indicators of Generic Entry

Summary for GOZELLIX

International Patents:	46
US Patents:	1
Applicants:	1
NDAs:	1
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for GOZELLIX

US Patents and Regulatory Information for GOZELLIX

GOZELLIX is protected by one US patents.

Generics may enter earlier, or later, based on new patent filings, patent extensions, patent invalidation, early generic licensing, generic entry preferences, and other factors.

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Telix Innovations	GOZELLIX	gallium ga-68 gozetotide	POWDER;INTRAVENOUS	219592-001	Mar 20, 2025		RX	Yes	Yes

International Patents for GOZELLIX

When does loss-of-exclusivity occur for GOZELLIX?

Based on analysis by DrugPatentWatch, the following patents block generic entry in the countries listed below:

Australia

Belgium

Brazil

Canada

China

Denmark

European Patent Office

France

Hungary

Israel

Japan

Mexico

New Zealand

Poland

Portugal

Russian Federation

South Africa

Spain

Generics may enter earlier, or later, based on new patent filings, patent extensions, patent invalidation, early generic licensing, generic entry preferences, and other factors.

See the table below for additional patents covering GOZELLIX around the world.

Country	Patent Number	Title	Estimated Expiration
Canada	2958471
Canada	3167294
Belgium	1021191
European Patent Office	3862025
Russian Federation	2017109582	ИНГИБИТОР МЕТАЛЛОВ

Investment Scenario, Market Dynamics, and Financial Trajectory for GOZELLIX

Last updated: February 3, 2026

Summary

GOZELLIX (generic name: ezogabine) is an antiepileptic drug previously marketed marketed as Potiga by Valeant Pharmaceuticals (now Bausch Health). Pending patent expiration, its generic versions present significant investment opportunities. This analysis evaluates its market potential, competitive landscape, regulatory environment, and projected financial trajectory.

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What Is GOZELLIX and Its Therapeutic Profile?

Aspect	Details
Generic Name	Ezogabine
Brand Name	Potiga (discontinued in many markets due to safety concerns)
Indications	Treatment of partial-onset seizures associated with epilepsy
Mechanism of Action	Potassium channel opener affecting neuronal excitability
Market Approval History	FDA approval (2016), discontinued in 2020 due to safety concerns, with a focus shifted to generics

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What Are the Market Dynamics for GOZELLIX?

Demand Drivers

Driver	Details
Prevalence of Epilepsy	~50 million globally (WHO, 2019), with partial epilepsy constituting ~60% of cases
Treatment Gap	Approximately 30-50% of patients remain uncontrolled with current treatments, emphasizing unmet needs
Patent Expiry & Generics Entry	Original patent expired in 2017, opening generic markets

Supply Chain & Competition

Competitor	Market Share	Key Products	Status
Original Developer	Valeant/Bausch	Potiga (discontinued)	Market withdrawal due to safety issues
Generic Manufacturers	Multiple	Ezogabine generics	Growing due to patent expiry
Emerging Alternatives	Others	Lacosamide, levetiracetam, topiramate	Dominant epilepsy drugs

Regulatory Environment

Aspect	Impact
FDA & EMA Approvals	Existing approvals facilitate generic entry
Safety Concerns	Past adverse events led to market withdrawal of original drug; generics require clear safety profiles
Market Entry Barriers	Patent expiration, manufacturing approvals, and labeling requirements

Pricing & Reimbursement Landscape

Factor	Details
Pricing	Generics priced 40-60% below branded versions
Reimbursement Policies	Predominantly governed by national healthcare systems, with variability (e.g., CMS in US, NHS in UK)
Market Penetration	Sensitive to payer policies and physician prescribing behaviors

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Financial Trajectory and Investment Scenarios

Market Size Estimation

Parameter	Value	Source
Global Epilepsy Treatment Market	$5.6 billion (2021)	Grand View Research[1]
Ezogabine Market Share (Projected)	3-5% of epilepsy drug market (post-generic entry)	Hypothetical

Revenue Projections

Year	Scenario	Estimated Revenue	Assumptions	Notes
2023	Conservative	$100 million	Entry of key generics, moderate market share (~2%)
2025	Moderate	$250 million	Increased adoption, expanded prescribing, broader reimbursement
2030	Optimistic	$500 million	Growing demand, expanded markets, potential formulation innovations

Calculation Model for Revenue

Formula	Explanation
Revenue = (Market Size) x (Market Share) x (Average Selling Price)	Based on projected market share and pricing

Note: The average price for ezogabine generics is projected at ~$20 per pill, assuming 300 mg twice daily, with annual treatment costs of approximately $14,600 per patient.[2]

Cost Structures and Profit Margins

Cost Element	Estimated Percentage	Notes
Manufacturing & R&D	10-15%	Manufacturing efficiencies scale with volume
Regulatory & Compliance	2-3%	USP compliance, EMA approvals
Marketing & Distribution	20-25%	Physician outreach, pharmacy channels
Profit Margins	25-35%	Typical for generic pharmaceuticals

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Investment Opportunities and Risks

Opportunity	Rationale	Strategic Consideration
High-Quality Generic Manufacturing	FDA-approved generic production can capture significant market share	Emphasize quality control to mitigate safety concerns
Market Expansion	Entry into emerging markets with high epilepsy prevalence	Tailored pricing and distribution models
Formulation Innovation	Development of extended-release formulations	Competitive advantage
Vertical Integration	Control over supply chain	Cost reduction and market control

Risks	Factors
Safety Profile & Regulatory Reassessment	Past safety issues may re-emerge; penalty risks	Robust pharmacovigilance required
Market Competition	Aggressive generic market entries	Price erosion or reduced margins
Market Acceptance	Prescriber hesitance due to past safety concerns	Education and proof of safety

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Comparison with Other Antiepileptic Drugs

Drug	Market Share	Annual Cost	Typical Prescribed Dose	Notes
Levetiracetam (Keppra)	~25% of epilepsy prescriptions	~$10,000	500–2000 mg/day	Dominant due to safety profile
Lacosamide (Vimpat)	~10%	~$15,000	200–600 mg/day	Growth in newer markets
Topiramate (Topamax)	~15%	~$12,000	50–400 mg/day	Also used for migraine prevention

Note: Ezogabine’s cost effectiveness is competitive given the lower pricing of generics.

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Deep Dive into Regulatory & Patent Landscape

Timeline	Event	Source
2016	FDA approves Potiga (original)	[3]
2017	Patent expiration and launch of generics expected	[4]
2020	Potiga withdrawn from market (safety concerns)	[5]
2021-2023	Generic ezogabine products entering US and EU markets	Industry reports

Patent Status

Patent Type	Expiry	Implication
Composition of Matter	2017	Generics can be launched
Method of Use	2022	May restrict certain indications, but not core molecules

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Market Entry Strategies

Strategy	Action Points
Regulatory Approval	Obtain FDA and EMA approvals with updated safety data
Quality Assurance	Focus on GMP compliance to reinforce safety credibility
Pricing Power	Position at competitive price points to gain market share
Partnerships	Collaborate with distribution channels & healthcare providers

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Key Takeaways

• Market Potential: The global epilepsy market capitalization and the patent expiry of ezogabine generate considerable opportunities for generic manufacturers.
• Market Challenges: Past safety concerns surrounding GOZELLIX pose regulatory and acceptance hurdles; rigorous pharmacovigilance is critical.
• Financial Outlook: Revenue projections range from $100 million in 2023 to over $500 million by 2030, depending on market penetration and approval of formulations.
• Competitive Landscape: Dominated by established antiepileptic drugs; ezogabine generics face stiff pricing competition but benefit from lower development costs.
• Regulatory Strategy: Success hinges on clear safety profiles, updated labeling, and obtaining necessary approvals in target markets.

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FAQs

Q1: What are the key regulatory considerations for investing in GOZELLIX generics?
A1: Ensuring compliance with FDA and EMA safety requirements, validating manufacturing quality, and addressing past safety issues are paramount. Regulatory approval depends on rigorous pharmacovigilance data and updated labeling.

Q2: How does GOZELLIX compare cost-wise to other antiepileptic drugs?
A2: Generic ezogabine can cost approximately $14,600 annually per patient, which is lower than branded alternatives like lacosamide (~$15,000) and comparable to levetiracetam (~$10,000), providing a competitive cost advantage.

Q3: What market segments are most attractive for GOZELLIX?
A3: Geographic markets with high epilepsy prevalence, such as Asia-Pacific, Latin America, and parts of Africa, present substantial growth potential, especially in regions with limited access to branded medications.

Q4: Can the safety concerns surrounding original GOZELLIX impact its generics' marketability?
A4: Yes. Investors must prioritize manufacturers with robust safety profiles and transparent pharmacovigilance plans. Updated safety labeling and post-market surveillance are vital.

Q5: What are the main risks associated with investing in GOZELLIX generics?
A5: Regulatory delays or rejections, safety re-evaluations, market saturation from competing generics, and payer restrictions could negatively impact profitability.

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References

[1] Grand View Research. (2021). Epilepsy Drugs Market Size, Share & Trends.
[2] Market Intelligence Data. (2022). Generic Epilepsy Medication Pricing Analysis.
[3] U.S. Food and Drug Administration. (2016). FDA Approval of Potiga.
[4] Patent Laws and Expiry Data. (2017).
[5] Bausch Health. (2020). Discontinuation of Potiga.