Why Corticotropin Isn't Available in the EU
Corticotropin has never been submitted for or granted EMA marketing authorisation. The EMA's centralised procedure is the gateway for any medication to be legally marketed across EU member states. Without it, corticotropin cannot be prescribed, dispensed, or legally imported for medical use.
This differs markedly from the US situation. The FDA approved corticotropin (as Acthar Gel, manufactured by Mallinckrodt) in 1952, and it has remained on the market ever since—though its commercial trajectory has been turbulent. The drug carries approximately 19 FDA-approved indications, making it one of the few ACTH products with formal regulatory blessing in a major market. The EU's absence of approval suggests either:
- Commercial prioritisation: The manufacturer may not have found sufficient market incentive to pursue EMA licensing, given smaller patient populations and stricter price regulation in Europe.
- Regulatory strategy: Some drug companies focus resources on the US market first, where pricing power is higher and approval timelines can be faster.
- Clinical evidence thresholds: European regulators may have applied different evidentiary standards to historical approval data, particularly for older compounds.
EMA Regulatory Framework for Corticotropin
European pharmaceutical regulation operates through the centralised procedure, which evaluates drugs against criteria including:
- Quality: Manufacturing standards and chemical consistency
- Safety: Toxicology, adverse event profiles, and risk management
- Efficacy: Clinical trial data demonstrating benefit in stated indications
For a hormone-based therapeutic like corticotropin, the EMA would expect robust evidence that ACTH therapy offers clear advantages over existing alternatives. In the EU, oral corticosteroids (like prednisolone) are widely used and well-established for many of the conditions where corticotropin carries US approval. Demonstrating superiority—rather than non-inferiority—would likely be required.
Notably, infantile spasms (West syndrome), where corticotropin is a first-line therapy in the US, is also treated in the EU using other agents. Vigabatrin and other anti-seizure medications form the backbone of European treatment protocols. While some European clinicians may believe ACTH has immunomodulatory advantages beyond standard steroids, this hasn't translated into a formal regulatory application or approval.
What "Not Authorised by the EMA" Means Legally
When a compound is "not authorised by the EMA," the legal implications are clear and binding:
For patients: Corticotropin cannot be legally prescribed or dispensed by hospitals, clinics, or pharmacies in any EU member state. It is not available through the standard healthcare system or private prescriptions.
For healthcare providers: Doctors cannot legally prescribe it, even off-label, because there is no legal supply chain. Off-label use of approved drugs is permitted in the EU; off-label use of unauthorised drugs is not.
For importation: Private importation of corticotropin for personal use is illegal in most EU jurisdictions. Even if purchased from a non-EU supplier, it cannot legally enter the EU for medical purposes.
For research: Clinical trials using corticotropin require investigational medicinal product (IMP) authorisation from national regulatory authorities, a different pathway from commercial approval.
The US-EU Approval Divide
Corticotropin exemplifies a broader pattern: many older, niche therapeutics are approved in the US but not the EU. The reasons vary, but key differences in regulatory philosophy matter:
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Historical data acceptance: The FDA has been more willing to rely on legacy clinical evidence and physician experience for compounds approved decades ago. The EMA, established in 1995, applies more modern evidentiary standards.
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Commercial pricing: The EU's price-regulation frameworks and health technology assessment requirements make it less attractive for high-cost drugs. Acthar Gel's price—which reportedly exceeded $38,000 per vial in the US—would face intense scrutiny in European health systems.
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Therapeutic alternatives: The EU may view existing, cheaper oral corticosteroids as adequate substitutes, reducing incentive for companies to pursue approval of a more expensive injectable ACTH product.
For corticotropin specifically, no evidence suggests the EMA has rejected an application. Rather, no application appears to have been submitted. This is a commercial decision, not a regulatory one.
Regulatory History and Timeline
Corticotropin has a long clinical history:
- 1950s: ACTH extracts isolated from animal pituitary glands; used empirically for autoimmune conditions
- 1952: FDA approval granted (one of the earliest biologics approved)
- 1970s–1990s: Continued US use, particularly in infantile spasms and multiple sclerosis
- 2010 onwards: Acthar Gel became a high-profile commercial story due to price escalation following acquisition by Mallinckrodt
- Present: No EMA submission on record; not available in EU
Within the EU, national regulatory pathways exist for individual member states, but they are subordinate to EMA authorisation for cross-border distribution. Some EU countries permit compassionate use or named-patient programs for unauthorised drugs in exceptional circumstances, but this requires case-by-case approval and is not a standard pathway.
What This Means for European Patients
If you or a family member in the EU has a condition for which corticotropin is used in the US—such as infantile spasms, multiple sclerosis relapses, or nephrotic syndrome—here's what you should know:
Standard treatment options are available: European healthcare systems have established, evidence-based protocols for these conditions using approved medications. These may include alternative ACTH-like compounds, oral corticosteroids, or immunosuppressants.
Clinical trials may be an option: If a trial involving corticotropin or related compounds is recruiting in your country, participation may provide access alongside rigorous monitoring. Check ClinicalTrials.gov and your country's national trial registry.
Off-label alternatives exist: Doctors can prescribe approved drugs off-label for conditions outside their labelled indication. While they cannot prescribe corticotropin itself, they may use alternatives with similar pharmacology that are EMA-approved.
Cross-border access is not legal: Importing corticotropin from the US or other non-EU countries for personal medical use is illegal, regardless of whether you have a prescription. Enforcement varies, but customs agencies can seize unauthorised medications.
Enforcement and Penalties
EU member states enforce pharmaceutical regulations through national competent authorities. Violations—such as importing or selling unauthorised corticotropin—can result in:
- Seizure of the product at customs or pharmacy level
- Fines for individuals or healthcare providers
- Criminal charges in cases of intentional trafficking
- Loss of medical licensing for practitioners who prescribe it
The severity depends on the member state and intent. A patient attempting to import a small quantity for personal use typically faces confiscation rather than prosecution. However, a healthcare provider prescribing it knowingly would face serious professional and legal consequences.
Could Corticotropin Be Approved in the EU in the Future?
Theoretically, yes—but prospects are limited. For approval to occur, a sponsor (likely Mallinckrodt or a licensee) would need to:
- Submit a Marketing Authorization Application (MAA) through the centralised procedure
- Provide comprehensive safety and efficacy data meeting EMA standards
- Address pricing and health economic questions
- Demonstrate added benefit over existing therapies
Given the drug's age, the availability of alternatives, and the commercial barriers in the EU market, a new application seems unlikely. If anything, a generic or biosimilar ACTH product might be more attractive commercially, but even this remains speculative.
Key Takeaways
Corticotropin is not legal in the EU because it is not EMA-authorised. It cannot be prescribed, purchased, or legally imported. European patients requiring ACTH-like therapy have access to alternative treatments that are formally approved and integrated into healthcare protocols. If you are considering corticotropin or have been told it might help your condition, consult your European healthcare provider about approved alternatives—they are tested, regulated, and accessible through standard channels.