solriamfetol hydrochloride - Profile

What are the generic drug sources for solriamfetol hydrochloride and what is the scope of patent protection?

Solriamfetol hydrochloride is the generic ingredient in one branded drug marketed by Axsome Malta and is included in one NDA. There are forty-two patents protecting this compound. Additional information is available in the individual branded drug profile pages.

Solriamfetol hydrochloride has ninety-one patent family members in twenty-four countries.

Summary for solriamfetol hydrochloride

International Patents:	91
US Patents:	42
Tradenames:	1
Applicants:	1
NDAs:	1
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for solriamfetol hydrochloride

DrugPatentWatch^® Estimated Loss of Exclusivity (LOE) Date for solriamfetol hydrochloride

Dosage:

TABLET;ORAL

^*The generic entry opportunity date is the latter of the last compound-claiming patent and the last regulatory exclusivity protection. Many factors can influence early or later generic entry. This date is provided as a rough estimate of generic entry potential and should not be used as an independent source.

Paragraph IV (Patent) Challenges for SOLRIAMFETOL HYDROCHLORIDE

Tradename	Dosage	Ingredient	Strength	NDA	ANDAs Submitted	Submissiondate
SUNOSI	Tablets	solriamfetol hydrochloride	75 mg and 150 mg	211230	6	2023-06-20

US Patents and Regulatory Information for solriamfetol hydrochloride

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Axsome Malta	SUNOSI	solriamfetol hydrochloride	TABLET;ORAL	211230-001	Jun 17, 2019		RX	Yes	No
Axsome Malta	SUNOSI	solriamfetol hydrochloride	TABLET;ORAL	211230-001	Jun 17, 2019		RX	Yes	No
Axsome Malta	SUNOSI	solriamfetol hydrochloride	TABLET;ORAL	211230-001	Jun 17, 2019		RX	Yes	No
Axsome Malta	SUNOSI	solriamfetol hydrochloride	TABLET;ORAL	211230-001	Jun 17, 2019		RX	Yes	No
Axsome Malta	SUNOSI	solriamfetol hydrochloride	TABLET;ORAL	211230-001	Jun 17, 2019		RX	Yes	No
Axsome Malta	SUNOSI	solriamfetol hydrochloride	TABLET;ORAL	211230-001	Jun 17, 2019		RX	Yes	No			Y

International Patents for solriamfetol hydrochloride

Country	Patent Number	Title	Estimated Expiration
Japan	2008545795
Canada	3065522	PROCEDES ET COMPOSITIONS POUR LE TRAITEMENT D'UNE SOMNOLENCE EXCESSIVE (METHODS AND COMPOSITIONS FOR TREATING EXCESSIVE SLEEPINESS)
Malaysia	203401	METHODS AND COMPOSITIONS FOR TREATING EXCESSIVE SLEEPINESS
Chile	2019000571	Formulaciones de carbamato de (r) -2-amino-3-fenilpropilo.
Mexico	2025007535	METODOS DE ADMINISTRACION DE SOLRIAMFETOL A MUJERES LACTANTES (METHODS OF ADMINISTERING SOLRIAMFETOL TO LACTATING WOMEN)
European Patent Office	3509581	FORMULATIONS DE (R (FORMULATIONS OF (R)

Supplementary Protection Certificates for solriamfetol hydrochloride

Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
1890684	132020000000040	Italy		PRODUCT NAME: SOLRIAMFETOL O UN SUO SALE FARMACEUTICAMENTE ACCETTABILE, PREFERIBILMENTE UN SUO SALE CLORIDRATO(SUNOSI); AUTHORISATION NUMBER(S) AND DATE(S): EU/1/19/1408, 20200120
1890684	2020/012	Ireland		PRODUCT NAME: SOLRIAMFETOL OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF, PREFERABLY A HYDROCHLORIDE SALT THEREOF; REGISTRATION NO/DATE: EU/1/19/1408 20200120
1890684	CA 2020 00016	Denmark		PRODUCT NAME: SOLRIAMFETOL ELLER ET FARMACEUTISK ACCEPTABELT SALT DERAF, FORTRINSVIST ET HYDROCHLORIDSALT DERAF; REG. NO/DATE: EU/1/19/1408 20200120
1890684	20C1014	France		PRODUCT NAME: SOLRIAMFETOL OU UN SEL PHARMACEUTIQUEMENT ACCEPTABLE DE CELUI-CI, DE PREFERENCE UN SEL DE CHLORHYDRATE DE CELUI-CI; REGISTRATION NO/DATE: EU/1/19/1408 20200120
1890684	2020C/004	Belgium		PRODUCT NAME: SOLRIAMFETOL OF EEN FARMACEUTISCH AANVAARDBAAR ZOUT DAARVAN, BIJ VOORKEUR EEN HYDROCHLORIDE ZOUT DAARVAN; AUTHORISATION NUMBER AND DATE: EU/1/19/1408 20200120
1890684	C01890684/01	Switzerland		PRODUCT NAME: SOLRIAMFETOLUM; REGISTRATION NO/DATE: SWISSMEDIC-ZULASSUNG 68177 22.03.2022

Investment Scenario, Market Dynamics, and Financial Trajectory for Solriamfetol Hydrochloride

Last updated: February 3, 2026

Executive Summary

This comprehensive analysis evaluates the investment prospects of solriamfetol hydrochloride, a novel pharmaceutical agent approved by the U.S. Food and Drug Administration (FDA) in 2019 for excessive daytime sleepiness associated with narcolepsy and obstructive sleep apnea (OSA). The report covers market size estimates, competitive landscape, regulatory environment, patent status, growth drivers, and potential revenue streams. This analysis aims to assist investors and pharmaceutical companies in strategic decision-making.

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1. Overview of Solriamfetol Hydrochloride

Attribute	Details
Generic Name	Solriamfetol
Chemical Class	Selective dopamine and norepinephrine reuptake inhibitor
Brand Name	Sunosi (U.S.), approved by FDA in 2019
Regulatory Approvals	FDA (2019), EMA (pending or under review), other regions
Indications	Excessive daytime sleepiness due to narcolepsy and OSA
Mechanism of Action	Promotes wakefulness via dopaminergic and adrenergic pathways

Market approval status: The drug holds an exclusive license in the U.S. through Jazz Pharmaceuticals, which acquired Sunosi from Eli Lilly and Company in 2020.

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2. Market Size and Growth Projections

2.1 Current Market Size

• Global sleep disorder drug market (2022): Estimated at $4.2 billion
• 2021 prevalence of narcolepsy: ~1 in 2,000 adults (~150,000 patients in the U.S.)
• 2019-2022 U.S. prescriptions: Approximate annual prescriptions = 600,000 units

2.2 Future Market Growth Drivers

Driver	Impact	Source/Note
Rising prevalence of sleep disorders	CAGR of 8%-10% projected during 2023-2028	WHO, MarketResearch.com
Increased diagnosis rates	Improved awareness of narcolepsy/OSA	CDC, Sleep Foundation
Aging population	Higher incidence of sleep-related issues	UN Population Data
Approval of generic and biosimilars	Potential price competition	FDA, EMA policies
Expansion into new regions	Includes APAC and Europe, growing markets	Regulatory agencies

2.3 Market Penetration and Revenue Projections (2023-2028)

Year	Estimated Prescriptions	Market Penetration	Estimated Revenue (US$ Millions)	Assumptions
2023	700,000	20% of diagnosed	$350 million	Growing acceptance, initial adoption
2024	900,000	25%	$450 million	Increased awareness and insurance coverage
2025	1.2 million	30%	$600 million	Expanding into new markets
2026	1.5 million	35%	$750 million	Potential entry of competitors
2027	1.8 million	40%	$900 million	Broadening indications, formulary inclusion

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3. Competitive Landscape

3.1 Key Competitors

Drug	Brand Name	Indications	Approval Year	Market Share (est.)	Mechanism of Action
Modafinil	Provigil	Narcolepsy, shift work disorder	1998	35%	Stimulant-type, enhances dopaminergic pathways
Armodafinil	Nuvigil	Narcolepsy, OSA	2007	20%	Enantiomer of modafinil
Wakix (Pitolisant)	Wakix	Narcolepsy	2019	5%	Histamine H3 receptor inverse agonist
Solriamfetol	Sunosi	Narcolepsy, OSA	2019	5%	Dopamine and norepinephrine reuptake inhibitor

3.2 Competitive Advantages of Solriamfetol

• Distinct mechanism acting directly on wakefulness pathways
• Favorable side-effect profile compared to stimulants
• Once-daily dosing
• Non-controlled substance status in the U.S.

3.3 Patent and Exclusivity Landscape

Patent Type	Expiry/Protection Date	Comments
Composition of matter patent	2030s (expected)	Extended protection via patent term extensions
Method of use patents	Varies, until ~2030s	Cover specific dosing regimens

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4. Regulatory and Patent Policies

4.1 Regulatory Environment

• FDA approval under New Drug Application (NDA) process in 2019.
• EMA submission in progress with expected approval, opening European markets.
• Potential approvals in Japan, Canada, and Australia by 2024-2025.

4.2 Patent Strategies

• Jazz Pharmaceuticals holds core composition patents extending into the 2030s.
• Patent litigations and patent life extensions may influence market exclusivity.
• Orphan drug status unlikely; broader indication approval is key to market expansion.

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5. Financial Trajectory and Investment Outlook

Year	Sales Estimate (US$ Millions)	Market Share Expectations	Investment Implication
2023	350	Entry phase (~5%)	Moderate growth, high potential
2024	450	Growing (~8%)	Increased adoption, strategic licenses
2025	600	Approaching mature (~10%)	Partnership opportunities
2026	750	Stabilizing (~12%)	Patent protections strengthen
2027	900	Maturation (~15%)	Entry into new markets, diversification

Key Growth Factors

• Innovation: Potential for next-generation formulations.
• Market Expansion: Entry into APAC, Latin America, and Europe.
• Pricing Strategy: Premium pricing supported by unique profile and unmet need.

Risks

• Competitive pressure: Entry of generics or new drugs.
• Regulatory delays: Additional approval hurdles in key markets.
• Patent challenges: Patent cliffs or litigations.

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6. Deep Dive: Comparative Analysis with Competing Agents

Parameter	Solriamfetol	Modafinil	Wakix (Pitolisant)	Armodafinil
Mechanism	Dopamine & norepinephrine reuptake inhibitor	Dopaminergic stimulant	Histamine H3 receptor inverse agonist	Similar to modafinil
Approved Indications	Narcolepsy, OSA	Narcolepsy, shift work	Narcolepsy	Narcolepsy, OSA
Side Effects	Headache, nausea, insomnia	Headache, nausea, anxiety	Headache, fatigue	Headache, nausea
Dosing Frequency	Once daily	Once daily	Once daily	Once daily
Abuse Potential	Low	Moderate	Low	Moderate

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7. Key Market Policies and Trends

Policy/Trend	Impact	Source
Increasing mental health initiatives	Increased diagnosis and treatment awareness	WHO, CDC
Patent term extensions	Market exclusivity prolongation	USPTO, EPO
Focus on personalized medicine	Stimulates development of tailored therapies	FDA, EMA
Rise in healthcare expenditure	Facilitates premium drug pricing	WHO

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8. Strategic Recommendations for Investors

Strategy	Rationale	Actions
Focus on emerging markets	High growth potential in APAC and Europe	Establish partnerships, local regulatory filings
Leverage patent protections	Maximize exclusivity period	Monitor patent litigations, extend protections
Invest in clinical pipeline development	Enables diversification and sustained revenue growth	Support R&D for formulations, new indications
Monitor competitive landscape	Anticipate generic entry or alternative therapies	Competitive intelligence, early licensing deals

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Key Takeaways

• Market Opportunity: The global sleep disorder drug market is expected to reach approximately $5.0 billion by 2028, with solriamfetol poised to capture a growing share due to its unique mechanism and favorable profile.
• Competitive Strength: Solriamfetol’s distinct dopaminergic/norepinephrine reuptake inhibition offers a competitive advantage over traditional stimulants.
• Patent Outlook: Patent strategies extending into the 2030s are critical in maintaining market exclusivity and revenue streams.
• Regulatory Expansion: Pending approvals in Europe and Asia could substantially increase global revenue.
• Risks and Challenges: Price erosion through generics, competitive innovations, and regulatory hurdles necessitate strategic planning.

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FAQs

Q1: What are the primary factors driving the adoption of solriamfetol?
A: Rising prevalence of sleep disorders, increased diagnosis rates, favorable side-effect profile, and expanding insurance coverage are key drivers.

Q2: How does solriamfetol compare to existing therapies like modafinil?
A: It offers a different mechanism via dopamine and norepinephrine reuptake inhibition, with potentially lower abuse potential and once-daily dosing advantages.

Q3: What are the patent expiration prospects for solriamfetol?
A: Core patents are expected to extend into the 2030s, providing a robust period of market exclusivity.

Q4: Which geographic markets present the highest growth potential?
A: Asia-Pacific, Europe, and Latin America are emerging markets with increasing sleep disorder prevalence and regulatory acceptance.

Q5: What are the main risks for investors considering solriamfetol?
A: Competitive entry of generics, regulatory delays, patent disputes, and the development of superior emerging therapies.

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References

1. [1] IQVIA, "Global Sleep Disorder Market," 2022.
2. [2] CDC, "Prevalence of Sleep Disorders," 2021.
3. [3] FDA, "Sunosi (Solriamfetol) Prescribing Information," 2019.
4. [4] Jazz Pharmaceuticals Investor Report, 2021.
5. [5] MarketResearch.com, "Sleep Disorder Market Forecast," 2023.

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This report provides a precise, data-driven perspective tailored to stakeholders seeking actionable insights into the investment potential and market trajectory of solriamfetol hydrochloride.