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Regulation of

Combination Products:

FDA Employee Perspectives

Combination Products Program
Office of the Ombudsman
Office of the Commissioner

October 2002


Table of Contents

I. Introduction and Methodology.

II. Survey Results

A. Consultation and Collaboration

B. Product Jurisdiction

C. Postmarket Regulation Issues.

D. Electronic Submission Tracking Systems.

III. Recommendations and Summary

A. Meeting with Stakeholders.

B. Development of Review Programs, Policies, Processes

C. Review Process Monitoring

D. Guidance and Transparency

E. Focal Point and Advocacy

I. Introduction and Methodology

Combination products (defined in further detail in 21 CFR Part 3) are composed of two or more different regulatory entities, i.e., drug-device, drug-biologic, device-biologic, or drug-device- biologic products. Such products often involve cutting edge, novel technologies that raise unique scientific, technical, policy and regulatory issues. Furthermore, the multi-Center aspect of the premarket review and regulation of combination products presents unique challenges in review management. The combination of two distinct components that would normally be regulated under different regulatory authorities introduces additional factors to consider in the assignment of lead Center and the formulation of appropriate regulatory requirements. Stakeholders report that FDA can expect to receive significantly more combination products for review as technological advances continue to merge therapeutic products and blur the historical lines of separation between FDA's medical product Centers.

A number of criticisms have been raised regarding FDA's regulation of combination products. These include concerns about the consistency, predictability, and transparency of the assignment process; issues related to the management of the review process when two (or more) FDA Centers have review responsibilities for a combination product; lack of clarity about the postmarket regulatory controls applicable to combination products; and the lack of clarity regarding certain Agency policies, such as when applications to more than one Agency component are needed, and on the need for mutually conforming labeling for the individual components of a combination product.

FDA recognizes the need to develop policies and procedures that will ensure the efficient and effective review and regulation of combination products, and in February 2002 established a Combination Products Program within the Office of the Ombudsman to coordinate such activities. In addition to serving as a point of contact for industry and the FDA Centers on combination products issues, the Combination Products Program is developing a number of initiatives to improve the review and regulation of combination products, including developing standard operating procedures to improve the management of the intercenter review process, monitoring the progress of premarket reviews of combination products, and developing guidance on a variety of policy issues for combination products.

As one of the first steps in developing the program, the Combination Products Program staff conducted interviews of approximately 25 individuals or groups in the Center for Biologics Evaluation and Research (CBER), the Center for Drug Evaluation and Research (CDER), and the Center for Devices and Radiological Health (CDRH). The individuals or groups were recommended primarily by the Product Jurisdiction Officers in CBER, CDER and CDRH as those with significant experience in handling combination products issues. Additional individuals or groups were interviewed at the suggestion of some of the interviewees. Most of the interviewees represented the Centers' premarket review programs, but postmarket reviewers, including those with responsibility for GMP issues and postmarket surveillance from each of the Centers were also represented.

The purpose of the interviews was to identify the combination product issues of greatest concern to FDA employees and managers, to identify areas needing policy development or revision, to solicit suggestions for improvement, and to identify (and ultimately refine and institutionalize) best practices that make the combination product review process as successful as possible.

The interviewing process was structured around a series of topics corresponding to the complete lifecycle of combination products, including product jurisdiction, intercenter consultation and collaboration, and postmarket regulation. The process was designed to elucidate the kinds of procedures, processes, or methods of communication or interaction that either significantly help or hinder the intercenter review process. FDA policy and regulatory processes were also discussed. Finally, participants were invited to comment on the roles and responsibilities of the new Combination Products Program, such as how Combination Products Program staff could best function as advocates for combination products, or as focal points for combination products for FDA employees and stakeholders.

This report summarizes the survey results and recommendations. Combination Products Program staff are also working directly with trade organizations and sponsors to obtain stakeholder views of combination products issues.

II. Survey Results

A. Consultation and Collaboration

Survey participants reported that measures critical to the success of a multi- Center review of a combination product include: timely determination that a product is indeed a combination product and requires consultation from another Center; willingness of the lead Center to engage another Center; clarity and specificity of the questions to be addressed by the consulting Center; familiarity with the other Center's regulatory authorities and limitations, timelines, jargon and culture; the degree of communication during the review process; and review management. Specific findings include:

B. Product Jurisdiction

A number of issues were raised regarding the methods FDA uses to assign a lead Center to review a combination product. These issues addressed the division of labor among the Centers, the Intercenter Agreements, the Request for Designation (RFD) process, and the role of front-line reviewers and project managers in product jurisdiction. Specific findings included:

For some products of a given type, based on the information available at the time of assignment, the primary mode of action may be attributed to a component regulated by one Center, while for other products in the same general class, the primary mode of action may be attributable to a component that is normally regulated by another Center. As a result, the review jurisdiction for different products within a given class may be split between two Centers, leading to differences in the application of premarket regulatory authorities, review policies, postmarket regulatory controls, and other factors relevant to product regulation. Senior managers interviewed reported that the lack of clear Agency policy on the jurisdiction for certain product classes makes the Centers reluctant to invest in hiring, training, guidance development and standards activities for products they may not be regulating in the near future.

Interview participants reported that jurisdictional decision making sometimes appears to be arbitrary, and that class-wide jurisdictional assignments should be made whenever possible. Some participants reported that they believe that their Center should have jurisdiction over all combination products incorporating a component that would independently be reviewed by that Center.

C. Postmarket Regulation Issues

Combination products sometime raise unique concerns about safety and effectiveness, or risks to the public health, arising specifically from the combination nature of the product. The statute permits the Agency to draw from the statutory and regulatory authorities applicable to all components of the combination product in order to ensure adequate demonstration of the safety and effectiveness of a product. For example, a drug-coated device may be subject to the device Quality Systems Regulation for the device component, to drug Good Manufacturing Practices (GMP's) for the drug coating, and to a mix of requirements, as appropriate, for the combined product.

While this flexibility may be appropriate to enable FDA to best promote and protect public health and address unique issues arising from the combination of two products that would otherwise be separately regulated, some complained that there is a lack of consistency in the application of postmarket requirements for such products. Since manufacturers must design their manufacturing and quality systems to address the types of products they produce, a sponsor that primarily manufacturers devices, for example, may not have the systems in place to manufacture a drug-coated device that will be subject to drug GMP's. Similarly, product sponsors have separately reported confusion in deciding which adverse event monitoring regulations to follow for a combination product, and that reporting to multiple Centers has been required in some cases, which they believe is duplicative and unnecessary.

While CBER and CDER have established relationships (including a common set of controlling regulations) between postmarket surveillance reviewers, participants reported that similar links with CDRH do not exist. As a result, CDRH adverse event reviewers reported that considerable "fumbling around" sometimes occurs in determining jurisdiction and/or engaging a consultant from CBER or CDER when a combination product issue emerges.

D. Electronic Submission Tracking Systems

Each Center has information technology systems to automate the tracking functions required for review management. As would be expected, each system is tailored to the regulatory framework that governs the majority of that Center's work. Some Centers have multiple systems tracking data based on the type of application or submission. These systems were largely developed independently, are not on the same computer platforms, and capture different kinds of data. The current tracking systems are generally not designed to capture consulting reviews. There is also a lack of uniformity, even between review divisions within a Center, in how intercenter consulting reviews are tracked.

III. Recommendations and Summary

A variety of themes emerged from the interview process that helped to further refine the current focus of the Combination Products Program. Based on the survey results, and the initial input received from stakeholders (including trade associations such as AdvaMed), the Program is beginning to develop and implement a number of initiatives. It is expected that these initiatives will be even further refined as input is received from meetings with stakeholders and the public meeting described below. On July 12, 2002, the FDA Deputy Commissioner called for each Center and the Office of Chief Counsel to nominate a senior representative to serve on a steering committee to guide these efforts. The overall goal is to improve the regulation of combination products and to facilitate intercenter interaction without adding unnecessary layers of management or oversight. Specific recommendations emerging from, or already underway but further validated by, this survey include:

A. Meeting with Stakeholders

B. Development of Review Programs, Policies, Processes

A major focus of the Combination Products Program is to develop review programs, policies and processes to facilitate the review of combination products or other projects requiring intercenter consultation or collaboration. The first major effort was to develop with CBER, CDER and CDRH a Standard Operating Procedure (SOP) on Intercenter Consultation and Collaboration. The SOP is in effect as of July 31, 2002.

The SOP outlines a number of policy and procedural issues directly related to the "best practices" identified in the interview process. Elements of the SOP that relate to the survey results include: the Agency's policy that "consults count," with accountability of consulting Centers to meet established deadlines; identifying the need for consultation as early in the review process as possible; providing methods to determine who in the consulting Center will conduct the consulting review; identifying specific questions and issues to be addressed by the consulting review team; providing for ongoing communication between the originating Center and the consulting Center during the review process; providing for management oversight of the consulting review process; and outlining methods to improve logistical handling of consulting reviews. The SOP is intended to be a "living document" and a future draft is already planned to further detail the collaborative review process. Related recommendations include:

C. Review Process Monitoring

One of the functions of the Combination Products Program is to monitor and provide oversight of the progress of premarket reviews of combination products, and to help identify and resolve issues arising during the review process. Implementation of this function is currently limited by the lack of appropriate "flags" in the Center tracking systems to identify whether a product is a combination product and/or whether it is subject to intercenter consultation or collaboration. For example, currently it is not possible to run a report identifying all combination products under review in the Agency, or even within a single Center.

D. Guidance and Transparency

Another function of the Combination Products Program is to develop guidance for FDA reviewers and industry on a number of key issues where there is a lack of clarity or transparency. In addition to establishing a combination products page on FDA's Internet site, FDA has begun posting a series of "jurisdictional updates" to communicate recent jurisdictional decisions to the regulated community. These updates are intended to provide greater transparency and currency to the jurisdictional process. Other areas cited in the interviews where guidance development is recommended are cited below. A high-level FDA steering committee is being formed to guide these efforts:

E. Focal Point and Advocacy

The Combination Products Program is designed to serve as a focal point for combination products issues for stakeholders and FDA employees. Program staff members are working on a variety of projects as requested by stakeholders or internally to help facilitate intercenter interaction. Continued education and outreach is needed to inform stakeholders and FDA employees about this function of the Combination Products Program.

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