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Notice

Determination That DECASPRAY (Dexamethasone) Topical Aerosol, 0.04%, and AEROSEB-DEX (Dexamethasone) Topical Aerosol, 0.01%, Were Not Withdrawn From Sale for Reasons of Safety or Effectiveness

Action

Notice.

Summary

The Food and Drug Administration (FDA) has determined that DECASPRAY (dexamethasone) Topical Aerosol, 0.04%, and AEROSEB-DEX (dexamethasone) Topical Aerosol, 0.01%, were not withdrawn from sale for reasons of safety or effectiveness. This determination will allow FDA to approve abbreviated new drug applications (ANDAs) for dexamethasone topical aerosol, 0.04% and 0.01%, if all other legal and regulatory requirements are met. However, in considering whether to file an ANDA for dexamethasone topical aerosol, 0.04% and 0.01%, future applicants are advised that they may not be able to obtain DECASPRAY (dexamethasone) Topical Aerosol, 0.04%, or AEROSEB-DEX (dexamethasone) Topical Aerosol, 0.01%, for bioequivalence testing because the products have not been commercially available for a number of years. An ANDA applicant who is unable to obtain DECASPRAY (dexamethasone) Topical Aerosol, 0.04%, or AEROSEB-DEX (dexamethasone) Topical Aerosol, 0.01%, for bioequivalence testing should contact the Office of Generic Drugs for a determination of what is necessary to show bioavailability and same therapeutic effect.

 

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FOR FURTHER INFORMATION CONTACT: Back to Top

Janice Weiner,Center for Drug Evaluation and Research,Food and Drug Administration,10903 New Hampshire Ave.,Bldg. 51, rm. 6304,Silver Spring, MD 20993-0002,301-796-3601.

SUPPLEMENTARY INFORMATION: Back to Top

In 1984, Congress enacted the Drug Price Competition and Patent Term Restoration Act of 1984 (98) (the 1984 amendments), which authorized the approval of duplicate versions of drug products under an ANDA procedure. ANDA applicants must, with certain exceptions, show that the drug for which they are seeking approval contains the same active ingredient in the same strength and dosage form as the “listed drug,” which is a version of the drug that was previously approved. ANDA applicants do not have to repeat the extensive clinical testing otherwise necessary to gain approval of a new drug application (NDA). The only clinical data required in an ANDA are data to show that the drug that is the subject of the ANDA is bioequivalent to the listed drug.

The 1984 amendments include what is now section 505(j)(7) of the Federal Food, Drug, and Cosmetic Act (FD Act) (21 U.S.C. 355(j)(7)), which requires FDA to publish a list of all approved drugs. FDA publishes this list as part of the “Approved Drug Products with Therapeutic Equivalence Evaluations,” which is known generally as the “Orange Book.” Under FDA regulations, drugs are removed from the list if the Agency withdraws or suspends approval of the drug's NDA or ANDA for reasons of safety or effectiveness or if FDA determines that the listed drug was withdrawn from sale for reasons of safety or effectiveness (21 CFR 314.162).

A person may petition the Agency to determine, or the Agency may determine on its own initiative, whether a listed drug that has been voluntarily withdrawn from sale was withdrawn for reasons of safety or effectiveness. This determination may be made at any time after the drug has been voluntarily withdrawn from sale, but must be made prior to approving an ANDA that refers to the listed drug (§ 314.161 (21 CFR 314.161)). FDA may not approve an ANDA that does not refer to a listed drug.

AEROSEB-DEX (dexamethasone) Topical Aerosol, 0.01%, is the subject of ANDA 83-296, held by Allergan Herbert (Allergan) and initially approved on June 15, 1973. AEROSEB-DEX is indicated for relief of the inflammatory and pruritic manifestations of corticosteroid-responsive dermatoses.

In its June 1997 annual report, Allergan notified FDA that AEROSEB-DEX (dexamethasone) Topical Aerosol, 0.01%, was being discontinued, and FDA moved the drug product to the “Discontinued Drug Product List” section of the Orange Book. In a letter dated August 28, 1998, Allergan requested withdrawal of ANDA 83-296 for AEROSEB-DEX (dexamethasone) Topical Aerosol, 0.01%. In the Federal Register of June 10, 1999 (64 FR 31226), FDA announced that it was withdrawing approval of ANDA 83-296, effective July 12, 1999.

Acaderm Inc., (Acaderm) submitted a citizen petition dated April 28, 2005 (Docket No. FDA-2005-P-0394), under 21 CFR 10.30, requesting that the Agency determine whether AEROSEB-DEX (dexamethasone) Topical Aerosol, 0.01%, was withdrawn from sale for reasons of safety or effectiveness. Although the citizen petition did not address DECASPRAY (dexamethasone) Topical Aerosol, 0.04%, that dexamethasone topical aerosol product has also been discontinued. On our own initiative, we have also determined whether DECASPRAY (dexamethasone) Topical Aerosol, 0.04%, was withdrawn for safety or effectiveness reasons.

DECASPRAY (dexamethasone) Topical Aerosol, 0.04%, is the subject of NDA 12-731, held by Merck & Co., Inc. (Merck). DECASPRAY, a synthetic adrenocortical steroid, was initially approved on March 29, 1961, solely on the basis of safety. The 1962 amendments to the FD&C Act require that drugs be shown to be effective as well. To accomplish this, FDA initiated the Drug Efficacy Study Implementation (DESI) review to evaluate the effectiveness of drugs that had been previously approved on safety grounds alone. In its DESI review of topical corticosteroids, FDA concluded that NDA 12-731 for dexamethasone topical aerosol was effective for certain indications (see 36 FR 7982, April 28, 1971), and it was labeled for relief of the inflammatory and pruritic manifestations of corticosteroid-responsive dermatoses.

In its annual report, Merck notified FDA that DECASPRAY (dexamethasone) Topical Aerosol, 0.04%, was being discontinued, and FDA moved the drug product to the “Discontinued Drug Product List” section of the Orange Book. In a letter dated June 25, 2002, Merck requested withdrawal of NDA 12-731 for DECASPRAY (dexamethasone) Topical Aerosol, 0.04%. In the Federal Register of August 18, 2003 (68 FR 49481), FDA announced that it was withdrawing approval of NDA 12-731, effective September 17, 2003.

After considering the citizen petition and comments submitted to the docket, and reviewing Agency records, FDA has determined under § 314.161 that AEROSEB-DEX (dexamethasone) Topical Aerosol, 0.01%, was not withdrawn from sale for reasons of safety or effectiveness. The petitioner has identified no data or other information suggesting that AEROSEB-DEX (dexamethasone) Topical Aerosol, 0.01%, was withdrawn for reasons of safety or effectiveness. We have carefully reviewed our files for records concerning the withdrawal of AEROSEB-DEX (dexamethasone) Topical Aerosol, 0.01%, from sale and have found no information that would indicate that this product was withdrawn from sale for reasons of safety or effectiveness.

FDA has also determined under § 314.161 that DECASPRAY (dexamethasone) Topical Aerosol, 0.04%, was not withdrawn for reasons of safety or effectiveness. We have carefully reviewed our files for records concerning the withdrawal of DECASPRAY (dexamethasone) Topical Aerosol, 0.04%, from sale. We have also independently evaluated relevant literature and data for possible postmarketing adverse events and have found no information that would indicate that this product was withdrawn from sale for reasons of safety or effectiveness.

Accordingly, the Agency will continue to list DECASPRAY (dexamethasone) Topical Aerosol, 0.04%, and AEROSEB-DEX (dexamethasone) Topical Aerosol, 0.01%, in the “Discontinued Drug Product List” section of the Orange Book. The “Discontinued Drug Product List” delineates, among other items, drug products that have been discontinued from marketing for reasons other than safety or effectiveness. ANDAs that refer to DECASPRAY (dexamethasone) Topical Aerosol, 0.04%, and AEROSEB-DEX (dexamethasone) Topical Aerosol, 0.01%, may be approved by the Agency as long as they meet all other legal and regulatory requirements for approval of ANDAs. If FDA determines that labeling for these drug products should be revised to meet current standards, the Agency will advise ANDA applicants to submit such labeling.

In considering whether to file an ANDA for this drug product, future applicants should be advised that they may not be able to obtain DECASPRAY (dexamethasone) Topical Aerosol, 0.04%, or AEROSEB-DEX (dexamethasone) Topical Aerosol, 0.01%, for bioequivalence testing because the products have not been commercially available for a number of years. An ANDA applicant who is unable to obtain DECASPRAY (dexamethasone) Topical Aerosol, 0.04%, or AEROSEB-DEX (dexamethasone) Topical Aerosol, 0.01%, for bioequivalence testing should contact the Office of Generic Drugs for a determination of what showing is necessary to satisfy the requirements of section 505(j)(2)(A)(iv) of the FD&C Act. If an ANDA is approved without a showing of bioequivalence, the approved product will not be considered therapeutically equivalent to the reference listed drug, i.e., granted an AB rating, in the Orange Book.

Dated: February 3, 2011.

David Dorsey,

Acting Deputy Commissioner for Policy, Planning and Budget.

[FR Doc. 2011-2890 Filed 2-8-11; 8:45 am]

BILLING CODE 4160-01-P

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