Process of reviewing and assessing the
dossier to support a medicinal product in view of its marketing (also called
licensing, registration, approval, etc.), obviously finalized by granting of a
document also called marketing authorization (equivalent: product license).
This process is performed within a legislative framework which defines the
requirements necessary for application to the concerned (competent) regulatory
authority, details on the assessment procedure (based on quality, efficacy and
safety criteria) and the grounds for approval or rejection of the application,
and also the circumstances where a marketing authorization already granted may
be withdrawn, suspended or revoked.
The application for marketing
authorization is called New Drug Application (NDA) in the USA or Marketing
Authorization Application (MAA) in the European Union and other countries, or
simply registration dossier. Basically, this consists of a dossier with data
proving that the drug has quality, efficacy and safety properties suitable for
the intended use, additional administrative documents, samples of finished
product or related substances and reagents necessary to perform analyzes of
finished product as described in that dossier. The content and format of the
dossier must follow rules as defined by the competent authorities. For example,
since year 2003, the authorities in the United States, the European Union and
Japan ask for the Common Technical Document (CTD) format, and more recently,
its electronic version - the electronic Common Technical Document (eCTD).
The application is filled with the
competent drug regulatory authority in the concerned country, which can be an
independent regulatory body or a specialized department in the ministry of
health.
In accordance with local legislation,
the resulting document allowing to the applicant to market the product may be
more detailed (in addition to data identifying the product and its holder it
may contain addresses of all manufacturing sites, appended labeling, artwork of
packaging components, etc.) until a one-page document called certificate of
registration (and containing minimal data identifying the product and its
source).
Procedures
for obtaining a marketing authorization
Authorization processes follow either a
purely national procedure, with rules and requirements as per national
legislation in force, as it occurs in most of countries worldwide, or should
follow a centrally approval or a mutual recognition or decentralized procedure
within the European Union.
Types
of applications
The type of application may vary
according to status of the active ingredient.
Thus, if the application concerns a new
active ingredient (new active substance, new chemical entity, new molecular
entity), one talks about a full application.
Once a new active ingredient
authorized, any additional strengths, pharmaceutical forms, administration
routes, presentations, as well as any variations (changes to the existing
marketing authorization) and extensions shall also be granted an authorization
or be included in the initial marketing authorization, being subject of an abridged
application.
Special consideration is to be given to
application for authorization of biological products and biotechnology
products, homeopathic products, herbal drugs, radionuclide generators, kits,
radionuclide precursor radiopharmaceuticals and industrially prepared
radiopharmaceuticals; in such instances, requirements are specific, in the
meaning that they are special, more or less detailed, as per the nature of
active ingredient.
Validity
of marketing authorizations
In most countries, a marketing authorization
is valid for a period of 5 years. After this period, one should apply for
renewal of the marketing authorization, usually by providing minimal data
proving that quality, efficacy and safety characteristics are maintained and
the risk-benefit ratio of the medicinal product is still favorable. However, in
the European Union, after one renewal, the marketing authorization shall remain
valid for an unlimited period, unless the competent regulatory authority
decides otherwise.
If the marketing authorization is not
renewed in a due time as requested by the local legislation, in order to
maintain the pharmaceutical product on a market, one can apply for
re-authorization (re-registration). In such situations, the applicant may be
requested to submit the whole items necessary for a full application.
Marketing authorization may be
withdrawn, suspended, revoked or varied by regulatory authorities if under
normal conditions of use the benefit over risk ratio is no more favorable, the
product is harmful, or if it lacks therapeutic efficacy; also, one of the above
actions can be taken if the qualitative and quantitative composition or other
qualitative aspects (control) are not as currently declared.
Marketing authorization may be also
withdrawn, suspended or revoked if the marketing authorization holder or its
representative does not fulfill other legal or regulatory obligations necessary
to maintaining of product on the market, as per the legislation in force.
Also, the marketing authorization is
withdrawn in the EU if the product is not placed on the market within next 3
consecutive years after granting of authorization or if it is no more marketed
for 3 consecutive years (so-called “sunset clause”).
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