|
Off-Label Use
of Medical Devices
How
can a medical practitioner decide whether a medical device that they
want to use for one of their patients is legal and approved by the Food
and Drug Administration? When a patient comes into a
physician's
office the patient is looking for the best, most modern care they can
get. And a physician certainly wants the same thing.
This
search for the best possible treatment presents a dilemma,
however. How does the physician know what can be legally
prescribed? When might the best treatment also be a treatment
that is still in the process of being developed? When might a
physician's search for the most advanced treatment cross over
into
medical research, and where does FDA draw the line between the two.
The answer is clear in some cases, but not so clear in
others.
First let's define what we mean by medical
research. Research in the laboratory and on animals is
usually
called preclinical research. When a medical device has been
successful in preclinical research the sponsor for a new medical device
may apply to FDA for a Investigational Device Exemption (IDE) which, if
approved, would allow for clinical research - research involving human
subjects - to prove that the device is safe and effective on people.
When,
and if, a device is approved by FDA, it is always approved for a
particular set of indications for use. FDA does not approve a
device for just any use.
If the physician is using a medical
device strictly for the practice of medicine, then FDA does not get
involved. That is a decision between the doctor and the
patient. If, on the other hand the physician's intent is to
expand the indications of use of the medical device, then he is
engaging in clinical research and must obtain an IDE approval
beforehand.
Let's look at an example. Recently there has
been research that suggests that toenail fungus can be treated with
laser. This is an interesting development because toenail
fungus
cannot be easily treated with either current internal or topical
medicines. The fungus is typically encapsulated under the
toenail.
As of this writing there is no laser that has
been cleared for use in the treatment of toenail fungus.
There
are similar lasers, however, that have been cleared for dental use.
If
a physician were to use the laser that had been cleared for dental use
on an individual patient to treat a toenail fungus, this is called
off-label use. There is a fine line between legal and illegal
off-label use of medical devices. The difference lies in the
intent when the physician uses or prescribes the medical device.
So
how does FDA decide whether the physician is trying to expand the
indications of use? If the physician is focusing only on
what's
best for an individual patient, then he/she is free to pick the best
treatment available. The physician should base his decision
on
the medical literature and his professional judgement of the risk
versus benefit to that patient.
However, if the physician were
to expand the practice to a number of patients or to publish the data,
then FDA would interpret the work as performing clinical research and
would require that the physician submit an IDE to FDA. If the
work is being supported or advertised by the medical device company,
that would be a clear red light.
If the physician is unclear
whether a proposed procedure would fall into the category of clinical
research he or she should consult the Institutional Review Board of the
hospital where the work is being done.
For more information on this subject take VCI's e-learning course "Introduction to Medical Device Approval Pathways" or call us at 734 274 4680.
About the author:
Norm
Howe is a Senior
Partner at
Validation &
Compliance Institute, consultants for the food, pharmaceutical, and
medical
device industries. He got his BS at UC, Berkeley, and a PhD in
chemistry at
UCLA. He is an adjunct professor of Regulatory Science at the University of Michigan, Ann Arbor,
and
has held many management positions in FDA regulated industries. http://www.vcillc.com
|