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The Journey of Drug Discovery to Commercialization in EU




Introduction

The pharmaceutical landscape in the European Union (EU) is a complex and regulated environment where new drugs undergo a rigorous process from discovery to commercialization. This journey ensures that only safe, effective, and high-quality medicinal products reach patients while fostering innovation and scientific advancement.

 

The Pathway of Drug Discovery and Development

The drug discovery process begins with identifying potential new compounds that target specific diseases. Following discovery, the development process includes several distinct phases:


Chemistry, Manufacturing, and Controls (CMC): Synthesis, formulation development, and establishing the stability process.


Preclinical Studies: This phase involves both in-vitro (lab-based) and in-vivo (animal-based) toxicology studies to determine safety profiles.


Clinical Trials: Clinical development is split into three phases:

Phase 1: Small-scale trials to assess safety and dosage.

Phase 2: Larger trials to evaluate efficacy and side effects.

Phase 3: Large-scale trials to confirm efficacy, monitor side effects, and collect

information to ensure the drug’s safe use.

 

Regulatory Milestones in the EU

Clinical Trial Application (CTA): Before commencing clinical trials in the EU, a CTA must be approved.


Paediatric Investigation Plan (PIP): Early in the drug development process, a PIP must be submitted and approved, detailing the drug’s potential use in children.


Marketing Authorization Application (MAA): Post Phase 3, an MAA is submitted to the European Medicines Agency (EMA). This includes all data from discovery through Phase 3 trials.


Review Process: The EMA’s Committee for Medicinal Products for Human Use (CHMP) reviews the application, typically within 210 days, unless an accelerated review of 150 days is granted.

 

 Incentivizing Drug Development


The EU incentivizes drug development through various means:


Orphan Drug Designation: For rare diseases, developers can receive incentives like market exclusivity, fee reductions, and assistance in clinical trial design.


PRIME (PRIority MEdicines) Designation: This facilitates the development of medicines that address unmet medical needs, providing benefits such as enhanced support and early dialogue with EMA, and potentially accelerated assessment.


Accelerated Assessment: For products of major public health interest, the CHMP can reduce the MAA review timeframe, subject to adequate justification.

 

Post-Marketing Phase

After a drug receives marketing authorization, the post-marketing phase begins. Responsibilities during this stage include:

 

Pharmacovigilance: Continuous monitoring for adverse drug reactions and efficacy.


Variations: Making any necessary changes to the marketing authorization.


Product Updates: Submitting updated product data to the EMA as needed.


Defect and Recall Reporting: Informing the EMA of any product defects or recalls.

 

Conclusion

The evolution of the European regulatory environment since 1995 has been marked by a focus on patient safety, scientific rigor, and the facilitation of access to new therapeutic options. By streamlining processes and offering various supports, the EU aims to balance the need for thorough drug evaluation with the imperative to foster innovation and respond to public health challenges.

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