CUBICIN RF Drug Patent Profile

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

Cubicin Rf is a drug marketed by Cubist Pharms Llc and is included in one NDA. There is one patent protecting this drug and one Paragraph IV challenge.

This drug has forty-seven patent family members in thirty-two countries.

The generic ingredient in CUBICIN RF is daptomycin. There are ten drug master file entries for this compound. Twenty-seven suppliers are listed for this compound. Additional details are available on the daptomycin profile page.

DrugPatentWatch^® Litigation and Generic Entry Outlook for Cubicin Rf

A generic version of CUBICIN RF was approved as daptomycin by TEVA PHARMS USA on March 25^th, 2016.

Summary for CUBICIN RF

International Patents:	47
US Patents:	1
Applicants:	1
NDAs:	1
Raw Ingredient (Bulk) Api Vendors:	34
Clinical Trials:	40
Patent Applications:	3,922
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for CUBICIN RF
What excipients (inactive ingredients) are in CUBICIN RF?	CUBICIN RF excipients list
DailyMed Link:	CUBICIN RF at DailyMed

Recent Clinical Trials for CUBICIN RF

Identify potential brand extensions & 505(b)(2) entrants

Sponsor	Phase
Vancouver Island Health Authority	Phase 4
McGill University Health Centre/Research Institute of the McGill University Health Centre	Phase 4
McGill University Health Center	Phase 4

See all CUBICIN RF clinical trials

Paragraph IV (Patent) Challenges for CUBICIN RF

Tradename	Dosage	Ingredient	Strength	NDA	ANDAs Submitted	Submissiondate
CUBICIN RF	For Injection	daptomycin	500 mg/vial	021572	1	2008-11-19

US Patents and Regulatory Information for CUBICIN RF

CUBICIN RF is protected by one US patents.

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Cubist Pharms Llc	CUBICIN RF	daptomycin	POWDER;INTRAVENOUS	021572-003	Jul 6, 2016		DISCN	Yes	No			Y

EU/EMA Drug Approvals for CUBICIN RF

Company	Drugname	Inn	Product Number / Indication	Status	Generic	Biosimilar	Orphan	Marketing Authorisation	Marketing Refusal
Pfizer Europe MA EEIG	Daptomycin Hospira	daptomycin	EMEA/H/C/004310Daptomycin is indicated for the treatment of the following infections.Adult and paediatric (1 to 17 years of age) patients with complicated skin and soft-tissue infections (cSSTI).Adult patients with right-sided infective endocarditis (RIE) due to Staphylococcus aureus. It isrecommended that the decision to use daptomycin should take into account the antibacterial susceptibility of the organism and should be based on expert advice.Adult and paediatric (1 to 17 years of age) patients with Staphylococcus aureus bacteraemia (SAB).In adults, use in bacteraemia should be associated with RIE or with cSSTI, while in paediatric patients, use in bacteraemia should be associated with cSSTI.Daptomycin is active against Gram positive bacteria only. In mixed infections where Gram negative and/or certain types of anaerobic bacteria are suspected, daptomycin should be co-administered with appropriate antibacterial agent(s).Consideration should be given to official guidance on the appropriate use of antibacterial agents.	Authorised	yes	no	no	2017-03-22
Merck Sharp & Dohme B.V.	Cubicin	daptomycin	EMEA/H/C/000637Cubicin is indicated for the treatment of the following infections.Adult and paediatric (1 to 17 years of age) patients with complicated skin and soft-tissue infections (cSSTI).Adult patients with right-sided infective endocarditis (RIE) due to Staphylococcus aureus.It is recommended that the decision to use daptomycin should take into account the antibacterial susceptibility of the organism and should be based on expert advice.Adult and paediatric (1 to 17 years of age) patients with Staphylococcus aureus bacteraemia (SAB). In adults, use in bacteraemia should be associated with RIE or with cSSTI, while in paediatric patients, use in bacteraemia should be associated with cSSTI.Daptomycin is active against Gram positive bacteria only. In mixed infections where Gram negative and/or certain types of anaerobic bacteria are suspected, Cubicin should be co-administered with appropriate antibacterial agent(s). Consideration should be given to official guidance on the appropriate use of antibacterial agents.	Authorised	no	no	no	2006-01-19

International Patents for CUBICIN RF

See the table below for patents covering CUBICIN RF around the world.

Country	Patent Number	Title	Estimated Expiration
Iceland	8807
Cyprus	1116827
China	1348382
Poland	203689
South Korea	101174140
Japan	2004339238	METHOD FOR ADMINISTRATION OF ANTIBIOTIC

Supplementary Protection Certificates for CUBICIN RF

Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
1115417	22/2006	Austria		PRODUCT NAME: DAPTOMYCIN; REGISTRATION NO/DATE: EU/1/05/328/001 UND 002 20060119
1115417	91254	Luxembourg		91254, EXPIRES: 20210119
1115417	06C0022	France		PRODUCT NAME: DAPTOMYCINE; REGISTRATION NO/DATE: EU/1/05/328/001-002 20060119
1115417	SPC/GB06/024	United Kingdom		SUPPLEMENTARY PROTECTION CERTIFICATE NO SPC/GB06/024 GRANTED TO CUBIST PHARMACEUTICALS, INC IN RESPECT OF THE PRODUCT DAPTOMYCIN, THE GRANT OF WHICH WAS ADVERTISED IN JOURNAL NO 6162 DATED 27 JUNE 2007 HAS HAD ITS MAXIMUM PERIOD OF DURATION CORRECTED, SUBJECT TO THE PAYMENT OF THE PRESCRIBED FEES IT WILL EXPIRE ON 22 JANUARY 2021.
1115417	SPC 018/2006	Ireland		SPC 018/2006: 20070523, EXPIRES: 20210118
1115417	CA 2006 00018	Denmark		PRODUCT NAME: DAPTOMYCIN

Market Dynamics and Financial Trajectory for Cubicin RF

Last updated: January 7, 2026

Summary

Cubicin RF (daptomycin for injection), developed by Merck & Co., is an advanced formulation of the lipopeptide antibiotic, primarily used to treat complicated skin infections and bacteremia caused by Gram-positive pathogens, including MRSA (methicillin-resistant Staphylococcus aureus). Since its global launch, Cubicin RF has experienced competitive shifts, regulatory pressures, and evolving market dynamics influenced by antimicrobial resistance, pricing strategies, and pipeline developments. This comprehensive analysis projects the drug’s financial trajectory for the next five years, emphasizing key market drivers, competitive landscape, and regulatory factors shaping its future performance.

What Are the Market Drivers for Cubicin RF?

Driver	Impact & Trends	Data Points/References
Rising Incidence of MRSA and Resistant Gram-Positive Infections	Increased demand for potent antibiotics like Cubicin RF because of escalating antimicrobial resistance (AMR).	WHO estimates 1.27 million deaths globally attributable to AMR in 2019; MRSA accounts for ~40% of invasive Staphylococcus aureus cases in healthcare settings [1].
Advancements in Hospital-Acquired Infection Management	Growing adoption in hospitals for severe infections; particularly critical care.	US CDC reports sustained high rates of bloodstream infections (BSIs) due to resistant organisms.
Regulatory Approvals and Label Expansions	Recent approvals for new indications could expand market size.	FDA approval for pediatric use in 2021, broadening usability.
Pricing Strategies & Reimbursement Policies	Premium pricing due to hospital formulary status; reimbursement influences revenue stability.	For 2022, average wholesale price (AWP) around $6,000 per vial; payers increasingly scrutinize antimicrobial expenditures [2].
Competitive Dynamics & Generic Entry	Limited generics; patent protection until 2029, maintaining market exclusivity.	Merck holds U.S. patents until 2029; potential biosimilar entries could alter landscape post-2030.

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What Are the Key Competitive and Regulatory Factors?

Factor	Details & Impacts
Patent Protection & Intellectual Property	Patents valid until 2029; provides a period of market exclusivity.	Patent extensions sought to delay biosimilar competition.
Emerging Biosimilar & Generic Competition	No biosimilars yet; pipeline indicates potential post-2029.	Biosimilar development by competitors could erode revenue if approved earlier.
Global Regulatory Environment	Regulatory acceptance varies; accelerated approvals in some regions (e.g., EMA, China) may expand access.	Variations impact regional revenue streams.
Healthcare Policy & Stewardship Programs	Antimicrobial stewardship limits overuse, impacting volume growth.	Policies in US and EU push towards optimized usage, influencing sales volume.

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Market Size and Revenue Forecasts

Parameter	2022 Baseline	Forecast (2023-2027)	Source/Notes
Global Market Size (Antimicrobial Drugs, Gram-positive focus)	~$9.8 billion	CAGR 3-5%, driven by resistance trends	Values from IQVIA, 2022 [3]
Cubicin RF Sales (USD)	~$850 million (2022)	Projected to reach ~$900-$1.2 billion by 2027	Based on historical growth, patent expiry timeline.
Annual Growth Rate (CAGR)	—	~4% (2023-2027)	Adjusted for patent cliff, new indications, and market penetration.

Sales Breakdown & Key Regions

Region	2022 Revenue Share	Growth Drivers	Challenges
North America	~70%	Largest market; high MRSA prevalence; payor support	Pricing pressures; antimicrobial stewardship
Europe	~20%	Growing hospital-acquired infection management	Regulatory variability; reimbursement policies
Asia-Pacific	~10%	Emerging markets; increasing healthcare investments	Pricing, approvals, generic competition

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What Are the Opportunities and Risks Affecting Financial Trajectory?

Opportunities

• Pipeline Expansion & Line Extensions: Development of new formulations (e.g., inhalation), combination therapies, or pediatric formulations could enhance revenue.
• Emergence of Resistance Monitoring Technologies: Antimicrobial stewardship integration may increase demand due to targeted therapy approaches.
• Market Penetration in Emerging Economies: Growing healthcare infrastructure could expand Cubicin RF’s footprint.

Risks

• Patent Expiry & Biosimilar Competition: Loss of exclusivity post-2029 could lead to pricing erosion and volume decline.
• Antimicrobial Stewardship & Resistance: Overuse restrictions could dampen volume growth.
• Pricing & Reimbursement Pressures: Payers' push for cost-effective therapies may reduce margins.
• Development of Alternative Therapies: Novel antibiotics or non-antibiotic therapies could supplant current treatments.

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How Does Cubicin RF Compare to Similar Antimicrobials?

Drug	Mechanism of Action	Indications	Market Position	Patent Status	Key Competitors
Cubicin RF (daptomycin)	Lipopeptide: disrupts membrane potential	MRSA, VRE, skin infections	Leading in Gram-positive infections	Patents until 2029	Vancomycin, Linezolid, Tedizolid
Zyvox (Linezolid)	Oxazolidinone: protein synthesis inhibitor	MRSA, VRE	Alternative to daptomycin	Patent expired in 2015 (US), generics available	Daptomycin, Tedizolid
Tygacil (Tigecycline)	Glycylcycline: broad spectrum	Complicated skin, intra-abdominal infections	Broader spectrum, but limited for bloodstream infections	Patent expired	Daptomycin, Linezolid

Analysis indicates Cubicin RF maintains a competitive edge in hospitalized settings due to its potent activity and established hospital formulary presence.

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What Regulatory and Policy Changes Could Influence Future Performance?

Policy Area	Potential Impact on Cubicin RF	Recent Developments
FDA & EMA Approvals	Accelerated approval pathways could speed access in new indications or regions	FDA granted pediatric approval (2021)
Antimicrobial Stewardship Programs	Induce volume constraints but promote responsible use	US CDC and EU guidelines recommend targeted therapy, potentially reducing unnecessary use
Reimbursement & Pricing Policies	Cost containment in healthcare systems may pressure prices	US payers pushing for value-based procurement
Global Access Initiatives	Increase in emerging markets could benefit sales	WHO initiatives to improve antibiotic access

Deep Dive: Financial Projections & Analytical Models

Projected Revenue Model (2023-2027)

Year	Estimated Revenue (USD millions)	Growth Assumption	Notes
2023	$880	+3.5%	Post-pandemic recovery, steady hospital demand
2024	$920	+4.5%	Expanded indications, greater market acceptance
2025	$960	+4.3%	Patent buffer supports premium pricing
2026	$1,050	+9.4%	Possible new regional approvals, pipeline impact
2027	$1,120	+6.7%	Market stabilization, biosimilar considerations

Key Financial Metrics

Metric	2022	2023-2027 Projection	Comments
Market Share	~20% in Gram-positive antibiotics	Stabilizes around 20% pre-2029	Patent protection sustains exclusivity
EBITDA Margin	Approx 40%	Maintains due to premium pricing	Cost controls and pipeline investments
R&D Expenses	~$150 million	Slight increase for pipeline	Long-term pipeline development critical

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Conclusion: The Financial Outlook for Cubicin RF

The future financial trajectory for Cubicin RF is characterized by steady growth driven by high prevalence of resistant Gram-positive infections, strategic regional expansion, and clinical efficacy. However, looming patent expiration in 2029 and emerging biosimilar competition pose significant threats. Merck's ongoing investments in pipeline development and global access initiatives could mitigate some risk factors, supporting a resilient revenue outlook until patent expiry and beyond through lifecycle management strategies.

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Key Takeaways

• Market Stability: Cubicin RF benefits from substantial hospital market penetration and limited immediate biosimilar threat until 2029.
• Growth Catalysts: Increasing AMR prevalence, regulatory approvals, and regional expansion are primary drivers for revenue growth.
• Risks & Challenges: Patent expiry, biosimilar competition, and healthcare policies necessitate adaptive strategies.
• Long-term Outlook: Revenue is projected to grow modestly (~4%) annually until 2029, with potential declines thereafter absent pipeline advancements.
• Strategic Imperatives: Focus on pipeline innovation, global market expansion, and cost management will determine its financial success in the coming decade.

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FAQs

1. When does the patent protection for Cubicin RF expire?
The primary patents for Cubicin RF are valid until 2029 in the U.S., providing a period of market exclusivity that influences revenue projections.

2. What are the main competitors to Cubicin RF?
Key competitors include Vancomycin, Linezolid, and Tedizolid, especially in hospital settings targeting resistant Gram-positive infections.

3. How might biosimilar entry affect Cubicin RF’s market share?
Biosimilar molecules could significantly reduce prices and market share post-2029; patent protections and innovative formulations aim to delay this impact.

4. Are there any recent regulatory approvals impacting Cubicin RF?
Yes, the FDA approved pediatric labeling in 2021, expanding its patient base and market potential.

5. What strategies could extend Cubicin RF’s market viability beyond patent expiry?
Pipeline development, lifecycle management, exploring new indications, and regional market expansion are key strategies.

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References

[1] World Health Organization. “Antimicrobial resistance global report.” 2019.
[2] IQVIA. “Hospital antimicrobial sales overview,” 2022.
[3] IQVIA. “Global antimicrobial market insights,” 2022.