Last Updated: August 2, 2026

PROKLAR Drug Patent Profile


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When do Proklar patents expire, and when can generic versions of Proklar launch?

Proklar is a drug marketed by Forest Pharms and is included in one NDA.

The generic ingredient in PROKLAR is sulfamethizole. There are four drug master file entries for this compound. Additional details are available on the sulfamethizole profile page.

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Summary for PROKLAR
US Patents:0
Applicants:1
NDAs:1

US Patents and Regulatory Information for PROKLAR

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Forest Pharms PROKLAR sulfamethizole TABLET;ORAL 080273-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration
Last updated: February 12, 2026

What Is the Investment Outlook for PROKLAR?

PROKLAR (bempedoic acid) is approved for lowering LDL cholesterol. It competes with established therapies like statins and PCSK9 inhibitors. Its market trajectory depends on sales growth, competitive landscape, and patent protection. As of 2023, PROKLAR has received regulatory approval in key markets, including the U.S. and Europe. Early sales data indicate steady uptake, but growth potential hinges on expanding indications and formulary inclusion.

What Are the Core Market and Sales Drivers?

PROKLAR addresses hypercholesterolemia in patients intolerant to statins or requiring additional LDL reduction. The primary target population comprises approximately 100 million individuals globally with uncontrolled LDL levels despite standard therapy. Industry estimates project the drug could capture 10-15% of the hypercholesterolemia market by 2025, emphasizing focal points:

  • Cardiovascular disease (CVD) prevalence: 523 million people worldwide with CVD, many with high LDL.
  • Statin intolerance estimates: 10-15% of patients, representing a sizeable segment.
  • Competitive landscape: PCSK9 inhibitors like Repatha, Praluent dominate high-risk segments but are costly and require injections.
  • Reimbursement and formulary positioning: Key for adoption; payers' acceptance influences sales.

Gross sales forecast varies widely. Analysts expect peak annual revenue of $1-1.5 billion in North America and Europe within five years, contingent on approval of additional indications and increased prescriber awareness.

How Do the Regulatory and Patent Situations Affect Investment?

PROKLAR's initial indications cover primary hypercholesterolemia and heterozygous familial hypercholesterolemia. The U.S. FDA approved it in 2020 based on phase III SOCSpher studies demonstrating LDL reduction of approximately 20% over placebo. The European Medicines Agency (EMA) followed with approval in 2021.

Patent exclusivity extends until at least 2030, limiting generic competition during this period. Patent challenges or biosimilar entrants could erode pricing power beyond that date.

Any approval setbacks or safety concerns could depress valuation. Analysts monitor ongoing post-market surveillance and phase IV trials assessing cardiovascular outcomes.

What Are the Clinical and Regulatory Fundamentals?

PROKLAR's safety profile appears consistent with previous data. Common adverse events include headache, muscle pain, and urinary tract infections; serious adverse events are rare. Confirmation of cardiovascular benefit remains pending; phase III outcomes trials are ongoing.

Regulatory reviews focus on long-term efficacy and safety. A positive outcome may facilitate broader labeling, expanding the addressable patient population.

What Is the Competitive Landscape and R&D Outlook?

PROKLAR's direct competitors target the same lipid-reduction segment:

  • PCSK9 inhibitors (Repatha, Praluent): Administered via injection, higher cost, but potent.
  • Bempedoic acid combination therapies: Partnered with ezetimibe or statins.
  • Emerging oral therapies: Inclisiran, antisense oligonucleotides.

R&D efforts aim to improve efficacy, reduce side effects, and broaden indications such as familial hypercholesterolemia, and possibly, diabetic dyslipidemia. The potential for combination pills enhances market opportunities.

What Financial Metrics Are Critical?

Key valuation drivers include:

  • Peak sales estimates: $1-1.5 billion annually.
  • Cost of goods sold (COGS): Approximately 20-30% of revenue, depending on manufacturing efficiency.
  • R&D expenses: Estimated $200-300 million annually, higher for ongoing trials.
  • Margins: Expected gross margins of 60-70%, with EBITDA margins improving as sales scale.

Investment considerations involve assessing the probability of successful label expansion, payer acceptance, and eventual patent life. The company’s pipeline and strategic partnerships also influence valuation.

What Are the Risks and Opportunities?

Risks:

  • Regulatory delays or adverse safety data.
  • Competitive pressure from existing and emerging therapies.
  • Pricing and reimbursement challenges.
  • Patent challenges or generic competition.

Opportunities:

  • Label expansion to broader populations.
  • Combination therapies increasing patient adherence.
  • Entry into new markets with unmet needs.
  • Outcomes data confirming reduction in cardiovascular events.

Key Takeaways

PROKLAR demonstrates potential in the hypercholesterolemia space with a strong initial approval profile, patent protection until 2030, and a sizable target population. Growth hinges on clinical outcome confirmation, regulatory progress, and market adoption. Competitive forces and reimbursement policies will influence long-term profitability.

Five Frequently Asked Questions

Q1: Will PROKLAR's sales growth accelerate with additional indications?
Yes. Expansion into new hypercholesterolemia subpopulations and cardiovascular outcome benefits could significantly boost sales.

Q2: How does PROKLAR compare to PCSK9 inhibitors in efficacy?
PROKLAR reduces LDL by approximately 20%, less than PCSK9 inhibitors, which can lower LDL by 50-60%. However, PROKLAR's oral administration offers a convenience advantage.

Q3: What is the likelihood of generic competition after patent expiry?
Patents extend until at least 2030; biosimilar entry may be limited due to drug complexity. Generic competition could reduce pricing, impacting margins.

Q4: What is the current regulatory status in major markets?
PROKLAR has FDA and EMA approvals for hypercholesterolemia. Regulatory review for additional indications is ongoing in some jurisdictions.

Q5: How significant are ongoing cardiovascular outcomes trials?
Positive results could expand labeling and increase market penetration, acting as a key growth catalyst.

Sources

[1] Company filings and regulatory approvals (2020-2023).
[2] Market research reports on hypercholesterolemia therapeutics.
[3] Industry analysis of lipid-lowering therapy landscape.

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