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8 FDA Veterinarian 1 (1993)

handle is hein.animal/fdavt0008 and id is 1 raw text is: ary/February 1993
     Vol. VIII, No. I


( I


YFDA VETERINARL4N


WORKSHOP EXAMINES BIG PROBLEMS OF SMALL RUMINANTS


O n October 22-23, 1992, FDA
    sponsored the sixth IR-4/FDA
Workshop for Minor Use Drugs which
focused on the health and drug needs
of small ruminants such as sheep,
goats, deer, and llamas. Participants at
this workshop, held in Bethesda, MD,
included representatives from govern-
ment, academia, industry, and pro-
ducer groups.
  Originally, Interregional Research
Project No. 4 (IR-4) was created by
USDA to develop data for use in estab-
lishing tolerances for pesticide residues
to permit legal use of these pesticides
on minor species plants. The project
was very successful and was ex-
panded in 1983 to include research on
animal drugs for use in minor species.
  The IR-4 Animal Drug Project is a na-
tional program dedicated to developing
new drugs for use in minor animal spe-
cies or in any animal species for the
control of a disease that occurs infre-
quently or in limited geographical areas.
Minor species include animals other
than cattle, swine, chickens, turkeys,
horses, dogs, and cats. Sheep have
been considered a major species when
it is necessary to acquire data to show
human food safety, but a minor spe-
cies when the data demonstrate only
animal safety and effectiveness.
  The IR-4 Project is funded by the
U.S. Department of Agriculture's
Cooperative State Research Service. In
1992, the program was funded at a
level of $450,000. FDA has also con-
tributed to the IR-4 Project by assign-
ing a full-time employee to coordinate
the activities of the program, conduct-
ing workshops to discuss important IR-
4 issues, funding extramural research
in minor species, and conducting tissue
residue and milk depletion analysis to


meet the human safety requirements in
several minor species.
  The IR-4 Project concentrates on
gaining approval for drugs for minor
species or minor uses for which there
is a lack of economic incentive for drug
companies. For example, there is a
scarcity of approved drugs for many
diseases of animals such as goats,
sheep, and fish. However, the cost of
developing a drug for these species
through an approved new animal drug
application (NADA) could exceed
profits likely to be obtained by phar-
maceutical manufacturers.
  Producers of minor species have
been handicapped by the limited num-
ber of drugs approved for use in these
animals. If diseases in these species are
not treated, there may be severe injury
to target animals as well as potential


B            ORDERS 8/92


public health hazards to humans.
Producers who need to treat their
animals are forced to use unapproved
drugs which are not necessarily safe
and effective.
  The IR-4 program has generated re-
search for approval of needed minor
use veterinary drugs. FDA allows data
on a drug for use in a closely related
major species of animal to be used to
support the approval of a similar indi-
cation in a minor species. Manufac-
turers of drugs for major species may
             (Continued, next page)
   In This Issue:
   Combination Drug Approval
   W ithdrawn  .............   4
   Defining Food and Non-
   Food Fish .............. 6
   1991 ADR Summary .... 1-13
   Carcinogenic Pesticides . . . . 10


                      U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES
                                    PUBLIC HEALTH SERVICE
FOOD AND DRUG ADMINISTRATION                                     CENTER FOR VETERINARY MEDICINE

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