Hello Dar,
The designation was initially proposed as a way to accelerate the regulatory process for products that show early clinical evidence of substantial improvement over existing therapies. yes its true companies have had little guidance on how FDA makes this determination, since FDA does not make public its rationale for granting or denying individual requests for designation.
The program was still in a transition phase. The newness of the program meant that even products that were in later stages of development (i.e., Phase 3) are being granted the designation despite the fact that the program was originally designed for drugs in early clinical development (i.e., Phase 1 and 2).
History Breakthrough Therapies for Patients Act was introduced and included as a component of the 2012 re-authorization of the Prescription Drug User Fee Act (Food and Drug Administration Safety and Innovation Act; FDASIA) to expedite development of new, potential breakthrough therapies.
Designation Sponsors can request Breakthrough designation at the time of investigational new drug application (IND) submission or anytime after, and the FDA has sixty days to respond to this request.
Designation Process (timing and content of request) - First of all preliminary clinical evidence is required for designation.
- The pre-IND meeting would be an opportunity to discuss and agree on the evidence needed to meet Breakthrough Therapy criteria and the contents of a designation request.
- The potential timeline of a request based on an agreement about the preliminary clinical evidence needed and the content of IND
- A request for Breakthrough designation should describe what category of Breakthrough therapy the investigational agent would fit into by including a summary of the disease the therapy aims to treat, expected outcomes for that patient population, and the existing (if applicable) therapies available to treat the disease.
- It should also describe how it meets the criteria for Breakthrough designation by describing the scientific rationale and mechanism of action of the investigational agent, and describing the early phase clinical studies and results of those studies
Designation Process (FDA Response) Requests for Breakthrough designation will be reviewed by senior officials in the office of the Center Directors. We propose that the FDA should have the flexibility to consult external expertise. These experts could also be consulted for later discussions on the appropriate design of clinical studies, if necessary.
In the event of a negative decision, the FDA should issue a non-designation letter that explains the FDA's rationale and provides recommendations of what criteria would need to be met in order for the product to be considered for Breakthrough designation.
Upon Designation Upon designation, the FDA and sponsor would collaborate in a dynamic and cross-disciplinary process to determine the most efficient path forward.
Crieteria for Breakthrough Designation 1) The diseases under study will be serious (either debilitating or life-threatening) and no established SoC exists or the current accepted SoC yields poor clinical outcomes (such as low response rates, lack of durability, limited survival, inadequate symptom control, severe acute or chronic effects, reduced quality of life).
2) Breakthrough designation should be based on compelling early evidence suggesting major clinically meaningful improvement over existing therapies in a defined disease setting.
3) The potential Breakthrough Therapy under consideration could be designated on the basis of early data suggesting a superior clinical therapeutic index compared to SoC in a similarly defined population.
4) The potential Breakthrough Therapy under consideration will typically have a compelling scientific rationale and promising mechanism of action, such as targeting a molecular driver of a biologically characterized disease
Categories of Breakthrough Therapies 1) Drugs that address conditions with poor outcomes, which may be defined by clinical or biologic subsets of disease, for which no established SoC or available concurrent control exist.
2)Drugs that provide substantial therapeutic improvement over existing, established SoC for conditions with poor outcomes, which may be defined by a clinical or biologic subset of disease.
3)Drugs that provide a substantial therapeutic index advantage over a SoC with well characterized efficacy and safety in a similarly defined population (e.g., a non-cardiotoxic anthracycline, antibody-drug conjugates).
4)Drugs that dramatically enhance the activity or tolerability of an existing regimen (e.g., boceprevir and teleprevir treatments for Hepatitis C).
5)Drugs that have previously demonstrated efficacy in a tumor type driven by an identified mutation/pathway alteration could be considered eligible for Breakthrough designation in a different tumor type with the same mutation/alteration based on substantial clinical efficacy in the additional tumor type.
Hope this will Help
Best Regards,
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Amit Jain
United States
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Original Message:
Sent: 08-30-2013 17:37
From: Darlene Rosario
Subject: BreakThrough Therapy Designation
Since Jan 2013, over 25 breakthrough therapy designations have been granted by FDA to over 17 development compounds. The FDA has issued guidance on RFD but has not published specific requirements for data including format, etc. Most information on the designation specifics are assumed from press releases from the companies being granted the designation and as expected bigger pharma companies have received a majority of the designations. Moving forward this might change.
Are there any companies willing to share their experience with requesting breakthrough therapy designation including key learnings (do and do not) about the request, submission package and interactions with the FDA towards the designation. For the companies that did not get the designation what advise would you have for other companies that are considering a RFD.
I look forward to your input,
Dar
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Darlene Rosario
Vice President RA and Quality
Biothera
Eagan MN
United States
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