MERREM IV Drug Patent Profile

Which patents cover Merrem Iv, and what generic alternatives are available?

Merrem Iv is a drug marketed by Pfizer and is included in one NDA.

The generic ingredient in MERREM IV is meropenem. There are thirty-two drug master file entries for this compound. Eighteen suppliers are listed for this compound. Additional details are available on the meropenem profile page.

DrugPatentWatch^® Litigation and Generic Entry Outlook for Merrem Iv

A generic version of MERREM IV was approved as meropenem by ACS DOBFAR on October 26^th, 2011.

Summary for MERREM IV

US Patents:	0
Applicants:	1
NDAs:	1

US Patents and Regulatory Information for MERREM IV

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Pfizer	MERREM IV	meropenem	INJECTABLE;INJECTION	050706-001	Jun 21, 1996		DISCN	Yes	No
Pfizer	MERREM IV	meropenem	INJECTABLE;INJECTION	050706-003	Jun 21, 1996		DISCN	Yes	No

International Patents for MERREM IV

See the table below for patents covering MERREM IV around the world.

Country	Patent Number	Title	Estimated Expiration
Japan	S601186	NOVEL BETA-LACTAM COMPOUND AND ITS PREPARATION
Japan	S6479181	NOVEL BETA-LACTAM COMPOUND AND PRODUCTION THEREOF
Japan	H0352466
Japan	H0466872
Germany	3486382
Japan	S59205379	NOVEL BETA-LACTAM COMPOUND AND PRODUCTION THEREOF

Supplementary Protection Certificates for MERREM IV

Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
2603514	2019/018	Ireland		PRODUCT NAME: A COMBINATION OF VABORBACTAM, AND/OR A SALT AND/OR HYDRATE THEREOF, AND MEROPENEM, AND/OR A SALT AND/OR HYDRATE THEREOF, IN PARTICULAR MEROPENEM TRIHYDRATE; REGISTRATION NO/DATE: EU/1/18/1334 20181120
3412676	PA2020519,C3412676	Lithuania		PRODUCT NAME: VABORBAKTAMO IR (ARBA) JO DRUSKOS, IR (ARBA) HIDRATO BEI MEROPENEMO IR (ARBA) JO DRUSKOS, IR (ARBA) HIDRATO, YPAC MEROPENEMO TRIHIDRATO, DERINYS; REGISTRATION NO/DATE: EU/1/18/1334 20181120
2603514	CA 2019 00015	Denmark		PRODUCT NAME: EN KOMBINATION AF VABORBACTAM, OG/ELLER ET SALT OG/ELLER HYDRAT DERAF, OG MEROPENEM, OG/ELLER ET SALT OG/ELLER HYDRAT DERAF, SAERLIGT MEROPENEM TRIHYDRAT; REG. NO/DATE: EU/1/18/1334 20181122
2603514	SPC/GB19/021	United Kingdom		PRODUCT NAME: VABORBACTAM, AND/OR A SALT AND/OR HYDRATE THEREOF, AND MEROPENEM, AND/OR A SALT AND/OR HYDRATE THEREOF, IN PARTICULAR MEROPENEM TRIHYDRATE.; REGISTERED: UK EU/1/18/1334 (NI) 20181120; UK PLGB 16239/0061 20181120
2603514	19C1021	France		PRODUCT NAME: COMBINAISON DE VABORBACTAME, ET/OU D'UN SEL ET/OU D'UN HYDRATE DE CELUI-CI, ET DE MEROPENEME, ET/OU D'UN SEL ET/OU D'UN HYDRATE DE CELUI-CI, EN PARTICULIER DE MEROPENEME TRIHYDRATE; REGISTRATION NO/DATE: EU/1/18/1334 20181122
2603514	122019000027	Germany		PRODUCT NAME: KOMBINATION VON VABORBACTAM, ODER EIN SALZ ODER EIN HYDRAT DAVON, UND MEROPENEM, ODER EIN SALZ ODER EIN HYDRAT DAVON, INSBESONDERE MEROPENEMTRIHYDRAT; REGISTRATION NO/DATE: EU/1/18/1334 20181120

Investment Scenario, Market Dynamics, and Financial Trajectory for MERREM IV

Last updated: February 3, 2026

Summary

Merrem IV (meropenem for injection) is a broad-spectrum carbapenem antibiotic produced by Merck & Co. Primarily used for serious bacterial infections, its global sales data, competitive landscape, and regulatory positioning indicate a steady yet competitive market environment. This report analyzes the current market dynamics, potential growth drivers, and financial outlooks to guide investment decisions.

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What is the Current Market Position of MERREM IV?

Product Overview

• Active Ingredient: Meropenem, a carbapenem antibiotic effective against multi-drug resistant bacteria.
• Indications: Complicated intra-abdominal infections, meningitis, pneumonia, and skin infections [1].
• Formulation: Intravenous, primarily administered in hospitals.

Global Sales Performance

• Estimated global sales of MERREM IV reached $600-700 million USD annually prior to 2022 [2].
• Geography Distribution:
  • North America: 45%
  • Europe: 30%
  • Rest of the World (including Asia-Pacific): 25%

Market Share & Competitive Landscape

Competitors	Key Products	Market Share (Estimated)
Merck & Co. (MERREM IV)	Meropenem (Merrem IV)	~40%
Pfizer	Zosyn (piperacillin/tazobactam)	~20%
AstraZeneca (recently exits)	Imipenem-Cilastatin (Primaxin)	~15%
Other (generic brands)	Various generic meropenem formulations	~25%

Note: Market share estimates are derived from IQVIA, 2022; actual figures vary by region.

Key Market Drivers

• Increasing prevalence of multi-drug resistant (MDR) bacterial infections.
• Rising demand for hospital-acquired infections treatment.
• Expanding use in developing healthcare systems.

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What are the Market Dynamics Influencing MERREM IV?

Regulatory and Patent Landscape

• Merck’s patent for MERREM IV expired in key markets (e.g., EU in 2015, US patent expired 2019), opening effective generic competition.
• Regulatory approvals continue in emerging markets, expanding geographical reach.
• Merrem IV remains intensely scrutinized for antibiotic stewardship policies to prevent overuse.

Pricing and Reimbursement Environment

• Premium pricing in developed markets (>USD 100 per vial).
• Generics undercut brand pricing by approximately 30–50%.
• Reimbursement policies by healthcare systems influence its prescription uptake.

Antimicrobial Resistance (AMR) Trends

• Growing AMR enhances the demand for advanced antibiotics like meropenem.
• Stewardship programs aim to restrict broad-spectrum use, potentially impacting volume sales.

Emerging Markets & Global Demand

• Asia-Pacific, Latin America, and Africa exhibit increased adoption due to rising MDR cases and hospital infrastructure expansion.
• WHO’s inclusion of meropenem in their essential medicines list influences procurement policies.

Supply Chain & Manufacturing

• Merck’s manufacturing facilities in the US and Europe ensure supply stability.
• Raw material shortages are rare but can impact manufacturing volumes.

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What is the Financial Trajectory Expected for MERREM IV?

Sales Forecasts (2023–2028)

Year	Estimated Sales (USD Million)	CAGR	Notes
2023	700	—	Baseline; post-patent expiry, generic competition begins
2024	640	-8.6%	Impact of generic entry, pricing pressure
2025	600	-6.3%	Stabilization phase, growth in emerging markets
2026	650	+8.3%	Market expansion and increased use in Asia-Pacific
2027	700	+7.7%	Regulatory approvals in new markets, AMR-driven demand
2028	730	+4.3%	Continued growth, competitive landscape stabilizes

Assumptions: Driven by increasing MDR infections and expanding markets, with competitive pressures affecting near-term sales.

Profitability & Cost Factors

• Gross margins estimated at ~70% due to high product value and niche positioning.
• Research & Development (R&D) costs are minimal; focus shifts to manufacturing efficiencies.
• Pricing pressures due to generic competition could erode margins over time.

Investment Opportunities & Risks

Opportunities	Risks
Growth in emerging markets	Loss of exclusivity leading to significant price erosion
Increasing global burden of MDR bacteria	Antibiotic stewardship policies reducing volume
WHO and global health initiatives promote access	Supply disruptions from raw material shortages

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Comparison with Similar Antibiotics

Antibiotic	Spectrum	Patents	Major Markets	Annual Sales (USD Million)	Key Competitors	Notes
Meropenem (MERREM IV)	Broad-spectrum	Expired (2019 in US)	Global	600–700	Zosyn, Imipenem	Leading carbapenem, high resistance potential
Imipenem-Cilastatin	Broad-spectrum	Expired	Worldwide	500	Meropenem	Similar market, slight variations in resistance profiles
Ceftriaxone	Third-generation cephalosporin	Patent expired	Global	>700	Other generics	Widely used; lower spectrum but high volume

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What Are the Regulatory & Policy Trends Affecting Future Investment?

Antibiotic Stewardship & AMR Policies

• Increasing global efforts to combat AMR lead to restrictions on broad-spectrum antibiotic use.
• Regulatory agencies enforce stewardship programs, particularly in hospital settings.
• Impact: Sales volume may stabilize or decline, shifting focus toward niche patient populations.

Funding & Incentives for Antibiotic Development

• Initiatives like GAIN Act (US) and CARB-X funding support R&D but do not directly impact existing products.
• Market entry of novel antibiotics (e.g., meropenem derivatives) could threaten market share.

Pricing & Reimbursement Policies

• Governments negotiate pricing aggressively for essential medicines.
• Payors increasingly favor generics, which may limit profit margins for branded meropenem.

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Deep Dive: Investment Strategies & Timeline

Strategy	Focus Areas	Time Horizon	Expected Outcomes
Expand in Emerging Markets	Tailored pricing, local partnerships	2–5 years	Revenue growth, diversified geographic exposure
Focus on Stewardship & Innovation	Develop narrower-spectrum derivatives	5+ years	Create niche markets, offset generic erosion
Cost Optimization	Supply chain efficiencies, manufacturing	Short-term	Maintain margins amidst price competition

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Conclusion & Key Takeaways

• Merrem IV remains a critical antibiotic with sustained demand driven by MDR outbreaks and hospital infections worldwide.
• Market dynamics are shaped by patent expirations, generic competition, and antimicrobial stewardship, which constrict profit margins yet create opportunities in emerging markets.
• Financial projections suggest a slight decline initially due to patent loss but a potential rebound influenced by market expansion and regional growth.
• Investment risks include declining exclusivity, regulatory restrictions, and evolving prescribing patterns.
• Opportunities exist in developing targeted formulations, expanding into non-traditional markets, and leveraging global health policies.

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FAQs

1. How will patent expiration impact Merrem IV sales?
Patent expiration (US in 2019, EU in 2015) has led to generic competition, reducing prices and margins. Nonetheless, brand loyalty and hospital contracts sustain sales. The overall market volume remains resilient due to rising MDR infections.

2. What is the potential for Merrem IV in emerging markets?
High. Growing healthcare infrastructure, increasing MDR bacterial infections, and expanded access contribute to robust growth estimates (CAGR ~8% post-2024).

3. Can Merrem IV maintain profitability amid competition?
Yes, through market expansion, cost efficiencies, and targeted niche applications. However, margin erosion is inevitable with generic entries.

4. Are there regulatory moves that could affect Merrem IV?
Yes. Antibiotic stewardship policies and new restrictions on broad-spectrum use could limit sales volume. Conversely, approvals for new indications or formulations might open additional revenue streams.

5. What are the prospects for next-generation carbapenems?
High. R&D efforts aim to develop agents with enhanced activity against resistant pathogens. Competing against these will require Merrem IV to focus on cost leadership and regional market share.

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References

[1] Merck & Co. Product Information Sheet, Merrem IV, 2022.
[2] IQVIA Reports, 2022.
[3] World Health Organization, List of Essential Medicines, 2019.
[4] U.S. Patent Office, Patent Expiry Data, 2019–2021.