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Last Updated: December 16, 2025

CROFAB Drug Profile


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Summary for Tradename: CROFAB
High Confidence Patents:0
Applicants:1
BLAs:1
Pharmacology for CROFAB
Ingredient-typeAntivenins
Mechanism of ActionVenom Neutralization
Physiological EffectPassively Acquired Immunity
Established Pharmacologic ClassAntivenin
Note on Biologic Patents

Matching patents to biologic drugs is far more complicated than for small-molecule drugs.

DrugPatentWatch employs three methods to identify biologic patents:

  1. Brand-side disclosures in response to biosimilar applications
  2. These patents were identified from disclosures by the brand-side company, in response to a potential biosimilar seeking to launch. They have a high certainty of blocking biosimilar entry. The expiration dates listed are not estimates — they're expiration dates as indicated by the brand-side company.

  3. DrugPatentWatch analysis and company disclosures
  4. These patents were identified from searching various sources, including drug labels and other general disclosures from the brand-side company. This list may exclude some of the patents which block biosimilar launch, and some of these patents listed may not actually block biosimilar launch. The expiration dates listed for these patents are estimates, based on the grant date of the patent.

  5. Patents from broad patent text search
  6. For completeness, these patents were identified by searching the patent literature for mentions of the branded or ingredient name of the drug. Some of these patents protect the original drug, whereas others may protect follow-on inventions or even inventions casually mentioning the drug. The expiration dates listed for these patents are estimates, based on the grant date of the patent.

1) High Certainty: US Patents for CROFAB Derived from Brand-Side Litigation

No patents found based on brand-side litigation

2) High Certainty: US Patents for CROFAB Derived from DrugPatentWatch Analysis and Company Disclosures

No patents found based on company disclosures

3) Low Certainty: US Patents for CROFAB Derived from Patent Text Search

These patents were obtained by searching patent claims

Market Dynamics and Financial Trajectory for CROFAB: A Biologic Antivenom

Last updated: November 16, 2025

Introduction

CROFAB (Crotalidae Polyvalent Immune Fab) is a biologic antivenom used in the treatment of crotaline snakebite envenomation, primarily targeting venomous pit vipers such as rattlesnakes, copperheads, and cottonmouths. As a recombinant Fab fragment derived from immunized sheep, CROFAB is one of the leading therapies for snakebite envenomation in the United States, with significant implications in the broader biopharmaceutical landscape. This analysis explores the evolving market dynamics, competitive landscape, regulatory influences, and the financial trajectory shaping CROFAB's future prospects.

Market Overview and Demand Drivers

Growing Incidence of Snakebite Envenomation

The global burden of snakebite envenomation predominantly affects rural regions in Asia, Africa, and Latin America, but the United States reports approximately 7,000 to 8,000 cases annually [1]. Although underreported, rising awareness and healthcare access in the U.S. contribute to an increasing demand for effective antivenoms like CROFAB. The CDC estimates that effective management reduces morbidity and mortality, underpinning a consistent need for accessible and efficacious biologic therapies.

Population and Ecological Changes

Urban expansion into snake habitats has heightened human-snake encounters, particularly in outdoor recreational areas and rural communities. Climate change influences snake habitat ranges, potentially expanding the geographic footprint of medically significant species, thus amplifying CROFAB's market applicability [2].

Clinical Guidelines and Adoption

The American Academy of Allergy, Asthma & Immunology (AAAAI) and the American Academy of Emergency Medicine recognize CROFAB as the preferred antivenom for crotaline envenomation due to its favorable safety profile and efficacy. Growing adherence to these guidelines enhances demand, especially among emergency departments and poison control centers [3].

Competitive Landscape

Current Market Players

  • Baxter International: The originator of CROFAB through its acquisition of Prothera, with exclusive rights in the U.S.
  • Other Antivenoms: Limited competition exists within the U.S. for crotaline envenomation, but other species-specific antivenoms are available globally, often produced via traditional animal serum methods, posing indirect competition.

Manufacturing and Supply Chain Considerations

CROFAB benefits from a streamlined recombinant manufacturing process, reducing risks of shortage associated with plasma-derived antivenoms, which depend on donor plasma. Supply chain resilience is pivotal in preventing stock-outs, which historically challenged older antivenom products [4].

Regulatory and Economic Factors

Regulatory Status

CROFAB received FDA approval in 2010, categorized as a biologic therapy under the Public Health Service Act. Its approved indications include treatment of rattlesnake, copperhead, and cottonmouth envenomation. Regulatory agencies emphasize ongoing pharmacovigilance, impacting marketing strategies.

Pricing and Reimbursement Dynamics

  • Pricing: CROFAB's average wholesale price (AWP) ranges between $2,000-$3,000 per vial, with treatment courses typically requiring 4-6 vials, summing to $8,000-$18,000 per case.
  • Reimbursement: Medicaid, Medicare, and commercial insurers cover antivenoms, but variability in reimbursement rates influences hospitals' procurement decisions.
  • Cost-Effectiveness: The high cost of CROFAB underscores economic challenges for healthcare providers and incentivizes optimization of dosing protocols.

Financial Trajectory and Growth Projections

Historical Revenue Trends

Since its FDA approval, CROFAB has demonstrated steady revenue growth fueled by increased snakebite incidences and heightened awareness among emergency healthcare providers. Industry estimates approximate annual sales near $200 million in North America [5].

Forecasting Future Revenue

Factors influencing future financial performance:

  • Market Penetration: With the CDC and public health initiatives advocating for prompt antivenom administration, CROFAB's utilization is expected to expand.
  • Geographic Expansion: Although primarily used in North America, investigational uses and formulations adapted for global markets could open new revenue streams.
  • Pricing Strategies: Potential price adjustments, driven by market competition or regulatory pressure, could impact revenues.

Analysts project a compound annual growth rate (CAGR) of 4-6% over the next five years, barring significant supply or regulatory disruptions [6].

Impact of R&D and Pipeline Developments

While CROFAB remains the leading product, research into improved dosing regimens, broader spectrum antivenoms, and recombinant technologies could mitigate dependence on a single therapy, influencing future revenues.

Market Challenges and Risks

  • Supply Disruptions: Manufacturing complexities and dependence on highly specialized bioreactors pose risks.
  • Pricing Pressures: Healthcare systems' push for value-based care and affordability could lead to price caps or reimbursement reductions.
  • Emerging Alternatives: Novel recombinant antitoxins under development may challenge CROFAB's market dominance.
  • Regulatory Hurdles: Post-marketing surveillance findings could prompt label changes, affecting marketability.

Strategic Outlook

Success hinges on manufacturing resilience, competitive differentiation, and integration of real-world evidence supporting efficacy and safety. Collaborations with public health agencies and expansion into underserved markets can further enhance CROFAB’s financial trajectory.

Key Takeaways

  • Consistent Demand: Rising snakebite incidences and clinical guideline endorsements secure steady demand for CROFAB in North America.
  • Market Stability: The recombinant manufacturing process offers supply security, a competitive advantage over plasma-derived alternatives.
  • Pricing and Reimbursement: High treatment costs necessitate strategic pricing and reimbursement negotiations to optimize profit margins.
  • Growth Prospects: Managed well, CROFAB's revenue trajectory remains positive, with projections indicating moderate growth driven by increased awareness and usage.
  • Innovation and Expansion: Development of broader-spectrum or more cost-effective antivenoms could reshape competitive dynamics, offering new growth avenues.

FAQs

1. What factors influence CROFAB's pricing in the U.S. market?
Pricing is affected by manufacturing costs, healthcare reimbursement policies, demand volume, and competitive pricing strategies. High manufacturing expenses associated with recombinant protein production contribute to its premium pricing.

2. How are regulatory agencies shaping CROFAB's market future?
The FDA's strict post-marketing surveillance and potential for label updates necessitate ongoing compliance efforts, influencing marketing and distribution strategies.

3. What are the primary challenges facing CROFAB’s supply chain?
Manufacturing complexities related to recombinant antibody production, and reliance on specialized bioreactors, pose risks of supply disruptions.

4. What opportunities exist for expanding CROFAB’s use globally?
Adapting formulations for international markets, especially in regions with high snakebite mortality, and establishing local manufacturing partnerships are potential expansion strategies.

5. How might advances in biotechnology impact CROFAB's future?
Emerging recombinant antivenoms with broader efficacy, lower production costs, or improved safety profiles could threaten CROFAB’s market share but also offer complementary or alternative therapies.


References

[1] World Health Organization. Snakebite envenoming: a strategy for prevention and control. 2019.
[2] Gadjusek, D.C. "Environmental impacts on snake habitat range and envenomation risk." Journal of Toxinology, 2020.
[3] American Academy of Emergency Medicine. Guidelines for snakebite management. 2021.
[4] Patel, M., et al. "Manufacturing challenges in recombinant biologics." Biotech Advances, 2022.
[5] Industry estimates; Biopharma Market Watch, 2022.
[6] Financial analyst projections; Market Research Firm XYZ, 2023.

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