FOI Summary;
NADA 200-073 (original); Ketamine Hydrochloride Injection, USP (Ketamine Hydrochloride Injection, USP); July 21, 1994
--Editor's abstract
1. GENERAL INFORMATION
ANADA: 200-073
Sponsor:
American Veterinary Products, Inc.
749 S. Lemay, Suite
A3-231
Fort Collins, Colorado 80524
Trade Name: Ketamine Hydrochloride Injection, USP
Generic Name: Ketamine Hydrochloride Injection, USP
Dosage Form: Solution
How Supplied: 10 mL multiple dose
vials
How Dispensed: Rx
Amount of Active Ingredients:
Each mL contains ketamine hydrochloride equivalent to 100 mg
ketamine base
Route of Administration: Intramuscular
Injection
Species: Cats and subhuman primates
Labeled Dosage:
- Cats:
A dose of 11 mg/kg (5 mg/lb) is recommended to produce restraint.
Dosages from 22 to 33 mg/kg (10 to 15 mg/lb) produce anesthesia that is
suitable for diagnostic or minor surgical procedures that do not require
skeletal muscle relaxation.
- Subhuman primates:
The recommended restraint dosages for the following species
are: Cercocebus torquatus (whitecollared mangabey), Papio cynocephalus
(yellow
baboon), Pan troglodytes verus (chimpanzee),
Papio anubis (olive baboon), Pongo
pygmaeus (orangutan), Macaca nemestrina
(pig-tailed macaque), 5 to 7.5 mg/kg;
Presbytis entellus (entellus langur), 3 to 5 mg/kg;
Gorilla gorilla gorilla
(gorilla), 7 to 10 mg/kg; Aotus trivirgatus (night monkey), 10 to 12 mg/kg;
Macaca mulatta (rhesus monkey), 5 to 10 mg/kg;
Cebus capucinus (white-throated
capuchin), 13 to 15 mg/kg; Macaca fascicularis (crab-eating macaque),
Macaca radiata (bonnet macaque), and Saimiri sciureus
(squirrel monkey), 12 to 15
mg/kg.
Indications for Use:
Ketamine hydrochloride injection, USP
may be used in cats for restraint or as the sole anesthetic agent for
diagnostic or minor, brief, surgical procedures that do not require
skeletal muscle relaxation. It may be used in subhuman primates for
restraint.
Pioneer Product:
Ketaset® [Vetalar®] (ketamine hydrochloride,
100 mg/mL), NADA 045-290 by Fort Dodge Laboratories, Inc.
Date of Approval: July 21, 1994
2. TARGET ANIMAL SAFETY AND DRUG EFFECTIVENESS:
Under the provisions of the Federal Food, Drug, and Cosmetic Act, as
amended by the Generic Animal Drug and Patent Term Restoration Act (53 FR
50460, December 15, 1988; first GADPTRA Policy Letter), an Abbreviated New
Animal Drug Application (ANADA) may be submitted for a generic version of an
approved new animal drug (pioneer product). For certain dosage forms, the Agency
grants a waiver from conducting an in vivo bioequivalence study (55 FR 24645,
June 18, 1990; fifth GADPTRA Policy Letter). In lieu of bioequivalence testing,
the safety and efficacy of the generic product are based on the demonstrated
chemical equivalence to the pioneer product.
Based on the formulation characteristics of the generic product, American
Veterinary Products, Inc. was granted a waiver on June 4, 1992 (see section 4)
from conducting an in vivo bioequivalence study with ketamine
hydrochloride injection, USP. The generic and pioneer products are solutions
with the same inactive ingredients and the same concentrations of the active
ingredient.
3. HUMAN SAFETY:
Human Safety Relative to Food Consumption:
Regarding consumption of drug residues in food, human safety data were
not required for approval of this ANADA. This drug is labeled for use in cats
and subhuman primates not intended for food.
Human Safety Relative to Possession, Handling and Administration:
Labeling contains adequate caution/warning statements.
4. WAIVER LETTER:
INAD 8257 (C001)
Gene Komer, PhD
Director of Research and Development
American Veterinary Products, Inc.
749 S. LeMay, Suite A3-231
Fort Collins, CO 80524
Dear Dr. Komer:
We refer to your submission dated March 18, 1992 to the Investigational New
Animal Drug (INAD) file for a generic copy of Fort Dodge's Vetalar® (ketamine
hydrochloride, 100 mg/ml, NADA 045-290). The pioneer product is approved as a
restraining agent in cats and subhuman primates. It can also be used as the sole
anesthitic agent for diagnostic or minor, brief surgical procedures that do not
requires skeletal muscle relaxation in cats. You requested a waiver of the requirement
for an in vivo bioequivalence study to support the filing of an
Abbreviated New Animal Drug Application (ANADA) based on the Generic Animal
Drug and Patent Term Restoration Act (GADPTRA) of 1988.
The submission contains the following:
- Copies of previous correspondence regarding the proposed product.
- Copies of the carton and illegible container labels and the package insert for
the pioneer product.
- A list of the pH of the pioneer product, the proposed generic product, and the pH
range from USP XXII.
- An itemized list of the active and inactive ingredients and their
concentrations in the proposed product.
- Comparative ultra-violet spectrophotometric scans of the pioneer product and
your proposed generic product.
Your proposed generic product contains the same active and inactive ingredients
in the same concentration as the pioneer product, Vetalar®.
The final pH of your product conforms to that of the pioneer and to current USP
specifications.
Your request for a waiver of in vivo bioequivalence testing is granted on the
condition that the information in your ANADA continues to show that your
proposed generic product is equivalent to the pioneer, Vetalar®.
Granting of this waiver does not assure approval of your ANADA. All necessary
requirements must be fulfilled, including certification that your product or its proposed
uses do not violate or infringe upon any patent or exclusivity for the
pioneer product or its uses.
We have reviewed your request for waiver of bioequivalency tests under the National
Environmental Policy Act. Since there are no investigations planned
under this INAD, no wastes are expected to enter the environment. Therefore, we
have determined that this action qualifies under 21 CFR 25.24(d)(4) for categorical
exclusion from the requirement to prepare an environmental assessment (EA). If
any studies are planned under the INAD, please file either a claim for exclusion or
an EA.
Future correspondence to your INAD file regarding this submission should be
identified by the date of this letter and our file number, INAD 8257 (C001).
In submitting your ANADA, please refer to this number and include a copy of this
correspondence in your original submission.
Should you have any questions or if we may be of further assistance, please
contact Dr. Marcia K. Larkins, Chief, Companion and Wildlife Drugs Branch. The
telephone number is (301) 295-8614.
Sincerely yours,
Bob G. Griffith, DVM
Division of Drugs for Non-Fodd Animals
New Animal Drug Evaluation
Center for Veterinary Medicine
5. AGENCY CONCLUSIONS:
This is an Abbreviated New Animal Drug Application (ANADA) filed under
Section 512(b)(2) of the Federal, Food, Drug and Cosmetic (FFD&C) Act.
Safety and effectiveness for this generic animal drug, ketamine hydrochloride
injection, USP, 100 mg/mL, were established by demonstration of chemical
equivalence to the pioneer product, Fort Dodge Laboratories
Vetalar®/Ketaset® (ketamine hydrochloride injection, USP, 100 mg/mL, NADA
045-290). Therefore, this ANADA satisfies the requirements of section 512 of
the Act.
This generic product and the pioneer product have identical labeling
indications for use. The route and method of administration of the two drugs
are identical. Both drugs are administered by intramuscular injection. The
generic and pioneer products are both solutions that contain the same active
and inactive ingredients in the same concentrations. Both products have the
same pH. Therefore, in compliance with FDA policy promulgated to implement
Section 512(b)(2) of the FFD&C Act, no additional safety, efficacy, or in
vivo bioequivalency studies were necessary or required.
6. ATTACHMENTS:
1. Copy of waiver letter dated June 4, 1992
2. Generic labeling:
- Bottle label
- Package insert
- Individual Bottle Carton Label
- 144 x 10 mL Shipper Carton Label
3. Pioneer Labeling:
- Bottle Label
- Individual Bottle Carton
- Package Insert (August, 1993)
Copies of these attachments may be obtained by writing to the:
Freedom of Information Office
Center for Veterinary Medicine, FDA
7500 Standish Place
Rockville, MD 20855