FDA center reorganisation history and how it shaped current review pathways


Published on 04/12/2025

FDA Center Reorganisation History and Its Impact on Review Pathways

Post updated on 12/06/2026

The United States Food and Drug Administration (FDA) plays a crucial role in the regulation of drugs, biologics, and medical devices. A significant aspect of its responsibilities is assigned to its various centers, notably the Center for Drug Evaluation and Research (CDER), the Center for Biologics Evaluation and Research (CBER), the Center for Devices and Radiological Health (CDRH), and the Center for Veterinary Medicine (CVM). Over the years, these centers have undergone numerous reorganisations that have significantly influenced their processes, review pathways, and regulatory responsibilities. This article aims to provide a step-by-step examination of the history of FDA center reorganisations and their implications for current regulatory pathways.

Understanding the Structure of

FDA Centers

The FDA is structured into several centers, each assigned specific jurisdiction over different types of products. Understanding the roles of these centers is foundational for professionals navigating the regulatory landscape:

  • CDER (Center for Drug Evaluation and Research): Responsible for the regulation of prescription and over-the-counter medications.
  • CBER (Center for Biologics Evaluation and Research): Oversees the regulation of biological products, such as vaccines and blood products.
  • CDRH (Center for Devices and Radiological Health): Responsible for ensuring the safety and effectiveness of medical devices.
  • CVM (Center for Veterinary Medicine): Regulates animal drugs and animal food products.

These centers not only verify safety and efficacy but also collaborate on combination products, which incorporate elements regulated by more than one center. Such collaboration is crucial in ensuring comprehensive evaluation and timely access to safe and effective products.

The Evolution of FDA Centers Over Time

Historically, the FDA has adapted to changing health care needs, scientific advancements, and global collaboration requirements that have led to the reorganisation of its centers. Here is a timeline of significant changes:

1. Establishment of CDER and CBER (1962)

The establishment of CDER and CBER marked a major overhaul in the FDA’s approach to drug and biologic regulation. Prior to this reorganisation, drug approval processes were less structured, leading to variability in effectiveness and safety assurance. CDER was tasked with rigorous new drug applications (NDAs), while CBER developed its processes for biologics, aligning with safety and efficacy mandates under the Drug Amendments of 1962.

2. Formation of CDRH (1976)

Following public health concerns surrounding the safety of medical devices, the Medical Device Amendments of 1976 led to the establishment of CDRH. This reorganisation introduced a more systematic approach to evaluating medical devices, aligning their safety and effectiveness standards with that of drugs and biologics.

3. Reorganisation for Combination Products (2002)

As scientific advancements led to the development of combination products, the FDA recognised the need for a streamlined review process. The establishment of the Office of Combination Products (OCP) within the Office of the Commissioner initiated new pathways for regulatory submission, allowing better coordination among CDER, CBER, and CDRH. The OCP’s role is to designate the lead center for combination products, thus resolving jurisdictional disputes and expediting review processes.

4. OPQ and OND Formation (2015)

The Office of Pharmaceutical Quality (OPQ) was created as part of CDER to enhance the quality standards for drugs. Concurrently, the Office of New Drug (OND) was also established to focus solely on innovative drug evaluations. This split allowed for a more dedicated approach toward handling the complexities of new drugs and ensured a consistent quality review process across all submissions.

Current Review Pathways and Their Implications

Understanding the historical evolution of the FDA centers is critical for grasping current review pathways. The reorganisation has refined processes, making them more efficient while maintaining rigorous standards for safety and efficacy.

1. New Drug Applications (NDAs) and Abbreviated NDAs

Current regulations permit the submission of NDAs and Abbreviated NDAs for generic drugs. The review process for NDAs is intricate, involving a comprehensive evaluation of clinical data, manufacturing processes, and labeling. Professionals need to be aware of the common pitfalls, including inadequate safety evaluations or insufficiently robust clinical trial designs, which can delay the approval process.

2. Biologics License Applications (BLAs)

In the realm of biologics, BLAs represent not only a product’s safety and efficacy but also compliance with thorough manufacturing practices regulated by CBER. The FDA’s guidance documents offer detailed instructions on the structure and data requirements for BLAs, helping applicants navigate complex regulatory demands and avoid missteps that could lead to requests for additional information.

3. 510(k) Submissions for Medical Devices

The 510(k) pathway allows devices that are substantially equivalent to a legally marketed device to enter the market more rapidly. However, applicants must be diligent in comparing their devices against predicate devices to avoid non-compliance issues. The historical context surrounding CDRH and its evolving policies should be well understood to successfully navigate this pathway.

Global Collaboration and Regulatory Alignment

In an increasingly interconnected world, global collaboration among regulatory agencies is essential. The FDA has engaged in discussions with European Medicines Agency (EMA) and other international bodies to harmonise regulatory standards. The implications of such collaboration are far-reaching, providing a streamlined approach to drug and device development that can enhance patient access to innovative therapies.

1. Harmonisation Initiatives

The International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH) has been pivotal in aligning global standards for drug regulation. The implementation of ICH guidelines has encouraged consistency across borders, easing the submission process for pharmaceutical companies aiming to launch products internationally.

2. Mutual Recognition Agreements (MRAs)

MRAs between the FDA and international regulatory authorities further enhance global collaboration. These agreements allow the FDA to recognise foreign inspections and the compliance status of manufacturing facilities, which can expedite the new product approval process by reducing the need for redundant evaluations.

Conclusion: Navigating the Evolving Landscape of FDA Centers

The FDA’s reorganisation over the decades has profoundly shaped modern regulatory processes, enhancing the safety and efficacy standards within the drug and device approval landscapes. For professionals in pharmaceutical, clinical operations, regulatory affairs, and medical affairs sectors, understanding these dynamics is critical. Knowledge of the historical context behind these changes enables a more robust engagement with current review pathways and impending product submissions.

As regulatory frameworks continue to evolve, staying informed about ongoing changes, guidance documents, and collaborative efforts between FDA and global regulatory entities will be crucial for ensuring compliance and advancing public health objectives. Professionals must continue to foster a proactive approach, utilising resources such as FDA guidance documents and federal regulations, to navigate the regulatory landscape effectively.

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