95-3803. Topical Drug Products for Over-the-Counter Human Use; Products for the Prevention of Swimmer's Ear and for the Drying of Water-Clogged Ears; Final Rule  

  • [Federal Register Volume 60, Number 31 (Wednesday, February 15, 1995)]
    [Rules and Regulations]
    [Pages 8916-8920]
    From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
    [FR Doc No: 95-3803]
    
    
    
          
    
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    Part IX
    
    
    
    
    
    Department of Health and Human Services
    
    
    
    
    
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    Food and Drug Administration
    
    
    
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    21 CFR Part 310
    
    
    
    Topical Drug Products for Over-the-Counter Human Use; Products for the 
    Prevention of Swimmer's Ear and for the Drying of Water-Clogged Ears; 
    Final Rule
    
    Federal Register / Vol. 60, No. 31 / Wednesday, February 15, 1995 / 
    Rules and Regulations 
    [[Page 8916]] 
    
    DEPARTMENT OF HEALTH AND HUMAN SERVICES
    
    Food and Drug Administration
    
    21 CFR Part 310
    
    [Docket N0. 77N-334S]
    RIN 0905-AA06
    
    
    Topical Drug Products for Over-the-Counter Human Use; Products 
    for the Prevention of Swimmer's Ear and for the Drying of Water-Clogged 
    Ears; Final Rule
    
    AGENCY: Food and Drug Administration, HHS.
    
    ACTION: Final rule.
    
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    SUMMARY: The Food and Drug Administration (FDA) is issuing a final rule 
    establishing that any over-the-counter (OTC) topical otic drug product 
    for the prevention of swimmer's ear or for the drying of water-clogged 
    ears is not generally recognized as safe and effective and is 
    misbranded. FDA is issuing this final rule after considering public 
    comments on the agency's proposed regulation, which was issued in the 
    form of a tentative final monograph, and all new data and information 
    on OTC topical otic drug products for these uses that have come to the 
    agency's attention. This final rule is part of the ongoing review of 
    OTC drug products conducted by FDA.
    
    EFFECTIVE DATE: August 15, 1995.
    
    FOR FURTHER INFORMATION CONTACT: William E. Gilbertson, Center for Drug 
    Evaluation and Research (HFD-810), Food and Drug Administration, 5600 
    Fishers Lane, Rockville, MD 20857, 301-594-5000.
    
    SUPPLEMENTARY INFORMATION: In the Federal Register of December 16, 1977 
    (42 FR 63556), FDA published, under Sec. 330.10(a)(6) (21 CFR 
    330.10(a)(6)), an advance notice of proposed rulemaking to establish a 
    monograph for OTC topical otic drug products, together with the 
    recommendations of the Advisory Review Panel on OTC Topical Analgesic, 
    Antirheumatic, Otic, Burn, and Sunburn Prevention and Treatment Drug 
    Products (the Panel), which was the advisory review panel responsible 
    for evaluating data on the active ingredients in topical otic drug 
    products. Interested persons were invited to submit comments by March 
    16, 1978. Reply comments in response to comments filed in the initial 
    comment period could be submitted by April 14, 1978.
        In accordance with Sec. 330.10(a)(10), the data and information 
    considered by the Panel, after deletion of a small amount of trade 
    secret information, were placed on public display in the Dockets 
    Management Branch (HFA-305), Food and Drug Administration, rm. 1-23, 
    12420 Parklawn Dr., Rockville, MD 20857.
        In the December 16, 1977 advance notice of proposed rulemaking on 
    OTC topical otic drug products, the Panel discussed the treatment of 
    swimmer's ear (42 FR 63556 at 63565), but the Panel did not address the 
    prevention of swimmer's ear or the drying of water-clogged ears.
        The agency's proposed regulation, in the form of a tentative final 
    monograph, for OTC topical otic drug products for the prevention of 
    swimmer's ear and for the drying of water-clogged ears was published in 
    the Federal Register of July 30, 1986 (51 FR 27366). Interested persons 
    were invited to file by September 29, 1986, written comments, 
    objections, or requests for oral hearing before the Commissioner of 
    Food and Drugs regarding the proposal. Interested persons were invited 
    to file comments on the agency's economic impact determination by 
    November 28, 1986. New data could have been submitted until July 30, 
    1987, and comments on the new data until September 30, 1987.
        In the Federal Register of November 7, 1990 (55 FR 46914), the 
    agency published a final rule establishing that certain active 
    ingredients that had been under consideration in a number of OTC drug 
    rulemaking proceedings were not generally recognized as safe and 
    effective. That final rule was effective on May 7, 1991, and included 
    in Sec. 310.545(a)(15) (21 CFR 310.545(a)(15)) the active ingredient 
    acetic acid, which had been under consideration as part of this 
    rulemaking for OTC topical otic drug products for the prevention of 
    swimmer's ear and for the drying of water-clogged ears. This ingredient 
    was determined to be nonmonograph because no additional data had been 
    submitted following publication of the tentative final monograph to 
    determine whether acetic acid is generally recognized as safe and 
    effective as a topical otic drug products for the prevention of 
    swimmer's ear or for the drying of water-clogged ears. After that final 
    rule published, only two ingredients remained to be evaluated in this 
    rulemaking: Isopropyl alcohol and anhydrous glycerin. Final agency 
    action on all other OTC topical otic drug products for the prevention 
    of swimmer's ear and for the drying of water-clogged ears occurs with 
    the publication of this final rule.
        In the tentative final monograph for OTC topical otic drug products 
    for the prevention of swimmer's ear and for the drying of water-clogged 
    ears (51 FR 27366), the agency did not propose any active ingredient as 
    generally recognized as safe and effective and not misbranded. However, 
    the agency proposed monograph labeling in the event that data were 
    submitted that resulted in the upgrading of any ingredient to monograph 
    status. In this final rule, however, no active ingredient has been 
    determined to be generally recognized as safe and effective for use in 
    OTC topical otic drug products for the prevention of swimmer's ear or 
    for the drying of water-clogged ears. Therefore, proposed 
    Secs. 344.3(c) through (f), 344.12, 344.14, 344.52, and 344.54 for OTC 
    topical otic drug products for the prevention of swimmer's ear and for 
    the drying of water-clogged ears are not being issued as a final 
    regulation.
        This final rule declares OTC drug products containing active 
    ingredients for the prevention of swimmer's ear or for the drying of 
    water-clogged ears to be new drugs under section 201(p) of the Federal 
    Food, Drug, and Cosmetic Act (the act) (21 U.S.C. 321(p)), for which an 
    application or abbreviated application (hereinafter called application) 
    approved under section 505 of the act (21 U.S.C. 355) and 21 CFR part 
    314 is required for marketing. In the absence of an approved 
    application, products containing these drugs for this use also would be 
    misbranded under section 502 of the act (21 U.S.C. 352). In appropriate 
    circumstances, a citizen petition to establish a monograph may be 
    submitted under Sec. 10.30 (21 CFR 10.30) in lieu of an application.
        This final rule amends part 310 (21 CFR part 310) to include OTC 
    topical otic drug products containing active ingredients for the 
    prevention of swimmer's ear or for the drying of water-clogged ears by 
    adding new paragraph (a)(15)(ii) to Sec. 310.545 to include the 
    ingredients covered by this final rule, by redesignating the text of 
    paragraph (a)(15) as (a)(15)(i), by revising the heading of newly 
    redesignated paragraph (a)(15)(i), and by revising the heading of 
    paragraph (a)(15) to clarify that products for the drying of water-
    clogged ears are also included. The inclusion of OTC topical otic drug 
    products for the prevention of swimmer's ear and for the drying of 
    water-clogged ears in part 310 is consistent with FDA's established 
    policy for regulations in which there are no monograph conditions. 
    (See, e.g. Secs. 310.510, 310.519, 310.525, 310.526, 310.532, 310.533, 
    310.534, and 310.536.) If, in the future, any ingredient is determined 
    to be generally recognized as safe and effective for use in an OTC 
    topical otic drug product for the [[Page 8917]] prevention of swimmer's 
    ear or for the drying of water-clogged ears, the agency will promulgate 
    an appropriate regulation at that time.
        The OTC drug procedural regulations (21 CFR 330.10) now provide 
    that any testing necessary to resolve the safety or effectiveness 
    issues that formerly resulted in a Category III classification, and 
    submission to FDA of the results of that testing or any other data, 
    must be done during the OTC drug rulemaking process before the 
    establishment of a final monograph. Accordingly, FDA does not use the 
    terms ``Category I'' (generally recognized as safe and effective and 
    not misbranded), ``Category II'' (not generally recognized as safe and 
    effective or misbranded), and ``Category III'' (available data are 
    insufficient to classify as safe and effective, and further testing is 
    required) at the final monograph stage. In place of Category I, the 
    term ``monograph conditions'' is used; in place of Categories II or 
    III, the term ``nonmonograph conditions'' is used.
        In the tentative final monograph for OTC topical otic drug products 
    (51 FR 27366 at 27367), the agency advised that the conditions under 
    which the drug products are subject to the monograph would be generally 
    recognized as safe and effective and not misbranded would be effective 
    12 months after the date of publication of the final monograph in the 
    Federal Register. Although data and information were submitted in 
    response to the proposed rule, they were not sufficient to support 
    monograph conditions, and no monograph is being established at this 
    time. Therefore, topical otic drug products that are subject to this 
    rule are not generally recognized as safe and effective and are 
    misbranded (nonmonograph conditions). Because no OTC drug monograph is 
    being established for this class of drug products, the agency is 
    adopting its standard 6-month effective date for the nonmonograph 
    conditions in this final rule. Therefore, on or after August 15, 1995, 
    no OTC drug products that are subject to this final rule may be 
    initially introduced or initially delivered for introduction into 
    interstate commerce unless they are the subject of an approved 
    application.
        In response to the proposed rule on OTC topical otic drug products 
    for the prevention of swimmer's ear and for the drying of water-clogged 
    ears, two drug manufacturers submitted comments on isopropyl alcohol 
    and anhydrous glycerin, and one physician submitted a comment on 
    isopropyl alcohol and acetic acid. Copies of the comments received are 
    on public display in the Dockets Management Branch (address above). 
    Additional information that has come to the agency's attention since 
    publication of the proposed rule is also on public display in the 
    Dockets Management Branch.
    
    I. The Agency's Conclusions on the Comments
    
    A. General Comments
    
        1. One comment contended that products for the treatment of 
    ``water-clogged ears'' are not drugs within the meaning of section 
    201(g) of the act (21 U.S.C. 321(g)) and, thus, are not the proper 
    subject of an OTC drug monograph. The comment stated that section 
    201(g)(1) of the act defines a drug, in part, as ``* * * (B) articles 
    intended for use in the diagnosis, cure, mitigation, treatment, or 
    prevention of disease in man or other animals; and (C) articles (other 
    than food) intended to affect the structure or any function of the body 
    of man or other animals * * *.'' The comment argued that these products 
    are not intended for use in connection with ``any disease,'' do not 
    affect the structure or any function of the body, and are not meant to 
    have any effect on the body. The comment mentioned that FDA had 
    previously stated that ``water-clogged ears is not a recognized 
    clinical entity or a term found in textbooks,'' (Refs. 1 and 2) and 
    thus, in FDA's view, the condition ``water-clogged ears'' is not a 
    disease.
        The comment added that if FDA concluded that such products are 
    intended for use in connection with a ``disease'' or affect the 
    structure or a function of the body, then the products should be 
    regulated as a device rather than as a drug. The comment stated that 
    section 201(h) of the act (21 U.S.C 321(h)) states that a device ``does 
    not achieve its primary intended purposes through chemical action 
    within or on the body * * * and * * * is not dependent upon being 
    metabolized for the achievement of its primary intended purposes.'' The 
    comment contended that products that function by drying excess water 
    work by a purely physical process and that the product is not 
    metabolized.
        Despite the comment's arguments, the agency considers products 
    ``for the drying of water in the ears'' or ``to help relieve the 
    discomfort of water-clogged ears by drying excess water'' to be drugs 
    and not devices. All drugs do not need to be metabolized. Some work by 
    a purely physical process, such as a skin protectant that forms a 
    physical barrier.
        The act defines a device, in section 201(h), in part, as an 
    instrument, apparatus, implement, machine, contrivance, implant, in 
    vitro reagent, or other similar or related article, including any 
    component, part, or accessory, which is: (1) Recognized in the official 
    National Formulary, or the United States Pharmacopeia, or any 
    supplement to them, (2) intended for use in the diagnosis of disease or 
    other conditions, or in the cure, mitigation, treatment, or prevention 
    of disease, in man or other animals, or (3) intended to affect the 
    structure or any function of the body of man or other animals, and 
    which does not achieve its primary intended purposes through chemical 
    action within or on the body of man or other animals and which is not 
    dependent upon being metabolized for the achievement of its primary 
    intended purposes. The agency has determined that these products do not 
    meet the definition of a device because they are not an instrument, 
    apparatus, implement, machine, contrivance, implant, in vitro reagent, 
    or other similar or related article.
        As discussed in the Panel's report (42 FR 63556 at 63565), external 
    otitis, an infection of the skin lining the external auditory canal, is 
    one of the most common diseases of the ear. One type of external otitis 
    is called ``diffuse external otitis'' and is commonly known as 
    ``swimmer's ear.'' It occurs with greater frequency during hot, humid 
    weather and has been reported to occur in divers and swimmers. 
    ``Swimmer's ear'' is apparently due to excessive moisture in the 
    external auditory meatus, which may be the result of various causes. 
    The external auditory canal is a cul-de-sac, well suited for the 
    collection of moisture, thus providing a basis for infection. 
    Disruption of the skin lining of the external auditory canal by the 
    action of the accumulated moisture, or by the use of instruments to 
    clear the ear canal of water after bathing or swimming, may cause 
    maceration, fissuring, or laceration of the skin lining and provide a 
    favorable environment for the growth of bacteria or fungi. Although the 
    action of products that dry water in the ear is limited to removal of 
    the excess water, if this condition is left untreated, it could result 
    in ``swimmer's ear.''
        In the tentative final monograph (51 FR 27366 at 27367), the agency 
    stated that it recognized a population that is prone to develop 
    swimmer's ear and that the availability of OTC drug products to prevent 
    the occurrence of this condition would benefit the consumer. Products 
    that dry water in the ear may prevent the occurrence of ``swimmer's 
    ear'' and, thus, help prevent disease. As discussed in the tentative 
    final monograph (51 FR 27366 at 27370), the agency also believes that 
    [[Page 8918]] excess water in the ear could impair hearing. Therefore, 
    the drying of water-clogged ears may affect the function of the ear by 
    reducing a loss of hearing in some individuals. Accordingly, the agency 
    concludes that products that dry water in the ears are drugs under 
    section 201(g) of the act.
    
    References
    
        (1) Letter from W. E. Gilbertson, FDA, to H. W. Gordon, Commerce 
    Drug Co., Inc., coded LET006, Docket No. 77N-0334, Dockets 
    Management Branch.
        (2) Letter from W. E. Gilbertson, FDA, to H. W. Gordon, Commerce 
    Drug Co., Inc., coded LET010, Docket No. 77N-0334, Dockets 
    Management Branch.
    
        2. One comment requested that products for drying water-clogged 
    ears be allowed to make the claim ``helps relieve swimmer's ear.'' The 
    comment stated that the agency's proposed definition of ``swimmer's 
    ear'' in Sec. 344.3(e) (51 FR 27366 at 27373) was too restrictive 
    because it included a demonstration of effectiveness against external 
    otitis in a susceptible target population. The comment mentioned that 
    consumers have long used the term ``swimmer's ear'' to refer to the 
    retention of excess water in the ears after swimming, showering, or 
    bathing. The comment argued that a demonstration of efficacy against 
    external otitis should not be a prerequisite for a claim relating to 
    ``swimmer's ear.''
        The agency disagrees with the comment. The Panel (42 FR 63556 at 
    63565) defined swimmer's ear as a ``diffuse external otitis,'' an 
    infection of the skin lining the external auditory canal. Likewise, 
    other medical experts (Ref. 1) define swimmer's ear as external otitis 
    associate with swimming. Clinical symptoms include an itchy or painful, 
    discharging ear, and a tender edematous canal filled with debris. 
    Pseudomonas aeruginosa is the predominant bacterial pathogen in cases 
    of external otitis. Successful treatment of the infection can require a 
    combination of topical therapies, including antibiotics, steroids, 
    drying agents, and acetic acid. If not successfully treated, swimmer's 
    ear may lead to malignant external otitis and mastoiditis. For these 
    reasons, the agency considers diagnosis and treatment of this infection 
    by a physician to be necessary.
        The comment did not submit any data to demonstrate that ear water-
    drying aid products alone ``help relieve swimmer's ear.'' Data showing 
    effectiveness of an ear water-drying aid product as a single agent 
    against external otitis would be a prerequisite for a claim relating to 
    ``swimmer's ear.'' The agency concludes that the existing data are 
    inadequate to support a relief of swimmer's ear claim for any ear 
    water-drying aid drug product.
    
    Reference
    
        (1) Mandell, G. L., G. Douglas, and J. E. Bennett, ``Principles 
    and Practice of Infectious Diseases,'' 3d ed., Churchill 
    Livingstone, New York, pp. 1680-1681, 1990.
    
        3. One comment requested that the proposed indications in 
    Sec. 344.52(b) for products for drying water-clogged ears be expanded 
    to permit mention of the source of the water in the ears causing the 
    problem. The comment suggested adding the following words to the 
    indications: (``caused by'' or ``resulting from'') ``swimming, 
    showering, or bathing.''
        The agency would have no problems in allowing the indications to 
    mention the source of the water. However, this would not be required 
    information because the proposed indications adequately describe the 
    use of the product. The agency would allow the source of the water to 
    appear as optional additional information that could appear at the 
    manufacturer's choice. At this time, indications for these products 
    will not appear in the final rule because no active ingredients are 
    included in a monograph for this class of OTC drug products. Should a 
    monograph be proposed in the future, the optional expanded indications 
    will be considered.
    
    B. Comments on Isopropyl Alcohol and Anhydrous Glycerin
    
        4. One comment submitted a study (Ref. 1) to support the 
    effectiveness of 5 percent anhydrous glycerin in 95 percent isopropyl 
    alcohol for the drying of water-clogged ears. The comment stated that 
    if FDA determines that this product is a drug, it should be classified 
    as Category I.
        The agency has reviewed the study and determined that the data are 
    insufficient to demonstrate the effectiveness of 5 percent anhydrous 
    glycerin in 95 percent isopropyl alcohol for the drying of water-
    clogged ears. This study involved 27 male or female volunteers, between 
    18 and 65 years of age, with a history of water-clogged ears. The 
    subjects were in generally good health with ears free of obstructions 
    and tympanic membranes free of any perforations. The objective of the 
    study was to determine the effectiveness of 5 percent anhydrous 
    glycerin in 95 percent isopropyl alcohol placed in the external 
    auditory canal to speed up the evaporation of water. Each subject was 
    placed in the supine position, and the ear was inspected with an 
    operating microscope. The ear to be tested was then filled with 
    lukewarm water. Each subject was permitted to tilt his/her head to 
    allow the water to run freely out of the ear onto absorbent cotton. 
    Only those subjects with water remaining in their ears were selected. 
    The presence of water was recorded on tape by means of an operating 
    microscope and its television camera. Five drops of product or water, 
    as a placebo, were then randomly instilled into the ear. The samples 
    were coded to maintain a double-blind so that both the investigator and 
    subjects were unaware of the material instilled. After 5 minutes, the 
    ear was inspected under the operating microscope and the presence or 
    absence of water was determined. The quantity of water present after 
    treatment was recorded as ``more,'' ``same,'' ``less,'' or ``none.'' 
    The findings were recorded on tape and the subject record form.
        Because participants were selected based on a history of some 
    problem with retaining water in the ears after exposure, it is the 
    agency's view that it is inappropriate to use a water-only placebo in a 
    study of the indication for relief of ``water-clogged ears.'' In such 
    situations, the water-only group would be expected to do worse than a 
    group left untreated after water exposure. The agency is also concerned 
    that the method used in the study did not specify how the head was 
    tilted nor did it specify the time allowed for the water to run freely 
    out of the ear onto the absorbent cotton. The position of the head and 
    the length of time allowed for the water removal from the ear should 
    have been specified.
        The agency does not consider a study population of 27 subjects 
    adequate to demonstrate that the results are statistically significant. 
    Based on its statistical evaluation of the results, the comment 
    reported that the product was effective in 22 out of 25 subjects' ears 
    (88 percent) and that the placebo was effective in 3 out of 24 
    subjects' ears (12 percent), a highly significant result (Chi Square 
     99.9 percent). However, the agency finds that a Yates 
    correction of Chi Square should have been used for this small cell size 
    study. A reanalysis using this correction was never provided.
        While the study provides some supportive information on the 
    product's drying effect, at least one additional well-designed 
    confirmatory study with an adequate number of subjects is needed. 
    Because the submitted data are inadequate to establish effectiveness 
    for the drying of symptoms of water-clogged ears, neither anhydrous 
    glycerin nor isopropyl alcohol is included in a monograph for this use. 
    The agency's [[Page 8919]] detailed comments and evaluation of the 
    above data are on file in the Dockets Management Branch (Ref. 2).
        The agency considers this product to be a drug. (See discussion in 
    section I.B., comment 5.) The agency has been informed that the comment 
    plans to conduct another study to establish the effectiveness of this 
    product for the drying of water-clogged ears (Refs. 3 and 4). When the 
    study is completed, the comment should submit the data in the form of a 
    petition to establish a monograph for this type of OTC drug product.
    
    References
    
        (1) Brookler, K. H., ``Evaluation of Auro-Dri in the Relief for 
    Water-Clogged Ears,'' Comment No. C2, Docket No. 77N-334S, Dockets 
    Management Branch.
        (2) Letter from W. E. Gilbertson, FDA, to H. W. Gordon, Del 
    Laboratories, coded LET5, Docket No. 77N-334S, Dockets Management 
    Branch.
        (3) Comment No. C5, Docket No. 77N-334S, Dockets Management 
    Branch.
        (4) Memorandum of meeting between representatives of Del 
    Laboratories, Inc., and FDA, coded MM1, Docket No. 77N-334S.
    
        5. One comment discussed the status of glycerin in a product 
    containing 5 percent anhydrous glycerin in 95 percent isopropyl 
    alcohol. The comment contended that glycerin was not an active 
    ingredient, but that glycerin was the vehicle. The comment stated that 
    the product did not make any claims for glycerin as an active 
    ingredient and thus no further testing for the glycerin in this product 
    was necessary. The comment stated that glycerin was miscible with both 
    water and alcohol (Ref. 1) and, thus, glycerin was particularly 
    appropriate for use as a vehicle in this product.
        The comment pointed out that the agency had previously stated (Ref. 
    2):
    
        In order to meet the requirements for a combination product, 
    each ingredient must be tested alone and also in combination to show 
    effectiveness for the proposed claims. However, if glycerin 
    functions only as a vehicle (and the need for it as a vehicle is 
    shown) and no claims are made for it as an active ingredient, 
    additional testing would not be required for this ingredient.
    
    The comment added that the Panel stated in its report on OTC topical 
    otic drug products (42 FR 63556 at 63562) that ``glycerin is used in 
    topical otic products * * * as a vehicle because of its solvent 
    properties. * * * Its viscosity makes it useful as an ingredient in 
    both liquid and ointment forms of medication. * * * Glycerin is widely 
    accepted as a vehicle of choice in otic products.''
        The agency does not have sufficient information demonstrating that 
    anhydrous glycerin functions only as a vehicle in this product. The 
    anhydrous glycerin could have an active role in the product. One text 
    states that anhydrous glycerin alone, or mixed with vinegar, will help 
    to remove water from the ear (Ref. 3). The comment did not provide any 
    data to show that at the 5 percent concentration present the anhydrous 
    glycerin does not contribute to the effect of the product. In order to 
    show that glycerin does not have an active role in the product, it 
    needs to be shown that the product with the glycerin is not superior to 
    95 percent isopropyl alcohol used alone. If the combination is 
    superior, this would show that the anhydrous glycerin contributes to 
    the product's effectiveness. The agency believes that a four-arm study 
    (combination, 95 percent isopropyl alcohol, anhydrous glycerin alone, 
    and placebo, which would be no treatment) should be conducted to 
    clarify the role of the glycerin in the product.
        In addition, if the glycerin were found to act only as a vehicle, 
    then the product would have to be labeled accordingly. The product 
    could not continue to be labeled as 5 percent anhydrous glycerin in 95 
    percent isopropyl alcohol.
    
    References
    
        (1) ``The Pharmacological Basis of Therapeutics,'' 6th ed., 
    edited by L. S. Goodman, and A. G. Gilman, The McMillan Co., New 
    York, p. 951, 1980.
        (2) Letter from W. E. Gilbertson, FDA, to H. W. Gordon, Commerce 
    Drug Co., Inc., coded LET10, Docket No. 77N-0334, Dockets Management 
    Branch.
        (3) ``Handbook of Nonprescription Drugs,'' 10th ed., American 
    Pharmaceutical Association, Washington, p. 400, 1993.
    
    C. Comments on the Isopropyl Alcohol and Acetic Acid
    
        6. One comment requested that a combination product containing 95 
    percent isopropyl alcohol and 3 percent acetic acid be included in the 
    final monograph with a claim for the prevention of swimmer's ear. The 
    comment urged the agency to consider this combination because isopropyl 
    alcohol with anhydrous glycerin was proposed as category III for drying 
    of water in the ears (51 FR 27366 at 27370) and 2 percent acetic acid 
    in distilled water was category III for prevention of swimmer's ear (51 
    FR 27367). The comment stated that preliminary data from a study 
    suggested that this product may be statistically significant in 
    diminishing the frequency of otitis externa in children during the 
    summer months. The comment concluded that a product containing 95 
    percent isopropyl alcohol and 3 percent acetic acid was effective in 
    drying of excess moisture in the ears as well as re-establishing the 
    acid mantle in the ear canals.
        As the comment noted, in the tentative final monograph, the agency 
    placed several products in category III: (1) 2 percent acetic acid in 
    distilled water or propylene glycol and the combination of 5 percent 
    anhydrous glycerin and 95 percent isopropyl alcohol for the prevention 
    of swimmer's ear, and (2) the combination of 5 percent anhydrous 
    glycerin and 95 percent isopropyl alcohol for the drying of water in 
    the ears or for the relief of the discomfort of water-clogged ears by 
    drying excess water.
        The comment did not submit any data on this combination, nor was 
    this combination considered by the Panel in its report or the agency in 
    the tentative final monograph. More data were needed on all of these 
    products. Likewise, adequate data to demonstrate the safety and 
    effectiveness of the comment's product are needed. Because no data were 
    submitted to establish safety and effectiveness, the combination of 95 
    percent isopropyl alcohol and 3 percent acetic acid for the prevention 
    of swimmer's ear is not being included in a monograph.
    
    II. The Agency's Final Conclusions on OTC Topical Otic Drug 
    Products for the Prevention of Swimmer's Ear and for the Drying of 
    Water-Clogged Ears
    
        At this time, there is a lack of data from adequate and well-
    controlled studies to establish that acetic acid, isopropyl alcohol, 
    anhydrous glycerin, or any other ingredients are safe and effective for 
    use as a topical otic drug product for the prevention of swimmer's or 
    for the drying of water-clogged ears.
        Therefore, any ingredient that is labeled, represented, or promoted 
    for OTC use as a topical otic drug product for the prevention of 
    swimmer's ear or for the drying of water-clogged ears is considered 
    nonmonograph and misbranded under section 502 of the act and is a new 
    drug under section 201(p) of the act for which an approved application 
    under section 505 of the act and part 314 of the regulations (21 CFR 
    part 314) is required for marketing. In appropriate circumstances, a 
    citizen petition to establish a monograph may be submitted under 21 CFR 
    10.30 in lieu of an application. Any such OTC drug product initially 
    introduced or initially delivered for introduction into interstate 
    commerce after the effective date of this final rule that is not in 
    compliance with the regulation is subject to regulatory action.
        In the Federal Register of November 7, 1990 (55 FR 46914), the 
    agency published a final rule in 21 CFR part [[Page 8920]] 310, 
    establishing that certain ingredients under consideration in a number 
    of OTC drug rulemaking proceedings were not generally recognized as 
    safe and effective. That final rule was effective on May 7, 1991, and 
    included in Sec. 310.545(a)(15) the ingredient acetic acid that had 
    been previously considered under this rulemaking for use as a topical 
    otic drug product for the prevention of swimmer's ear and for the 
    drying of water-clogged ears. The agency is revising 
    Sec. 310.545(a)(15) to clarify that products for the drying of water-
    clogged ears are also included in the regulation and to add new 
    paragraph (a)(15)(ii) to include the ingredients covered by this final 
    rule.
    
    III. Analysis of Impacts
    
        No comments were received in response to the agency's request for 
    specific comment on the economic impact of this rulemaking (51 FR 27366 
    at 27371). FDA has examined the impacts of the final rule under 
    Executive Order 12866 and the Regulatory Flexibility Act (Pub. L. 96-
    354). Executive Order 12866 directs agencies to assess all costs and 
    benefits of available regulatory alternatives and, when regulation is 
    necessary, to select regulatory approaches that maximize net benefits 
    (including potential economic, environmental, public health and safety, 
    and other advantages; distributive impacts; and equity). The agency 
    believes that this final rule is consistent with the regulatory 
    philosophy and principles identified in the Executive Order. In 
    addition, the final rule is not a significant regulatory action as 
    defined by the Executive Order and, thus, is not subject to review 
    under the Executive Order.
        The Regulatory Flexibility Act requires agencies to analyze 
    regulatory options that would minimize any significant impact of a rule 
    on small entities. This particular rulemaking for OTC topical otic drug 
    products for the prevention of swimmer's ear and for the drying of 
    water-clogged ears is not expected to pose such an impact on small 
    businesses. As noted above, the ingredient acetic acid has already been 
    removed from OTC topical otic drug products for the prevention of 
    swimmer's ear and for the drying of water-clogged ears. The agency is 
    only aware of several OTC topical otic drug products containing 
    isopropyl alcohol and anhydrous glycerin labeled for these uses. 
    Accordingly, based on the number of affected products, the agency 
    certifies that this final rule will not have a significant economic 
    impact on a substantial number of small entities. Therefore, under the 
    Regulatory Flexibility Act, no further analysis is required.
        The agency has determined under 21 CFR 25.24(c)(6) that this action 
    is of a type that does not individually or cumulatively have a 
    significant effect on the human environment. Therefore, neither an 
    environmental assessment nor an environmental impact statement is 
    required.
    
    List of Subjects in 21 CFR Part 310
    
        Administrative practice and procedure, Drugs, Labeling, Medical 
    devices, Reporting and recordkeeping requirements.
    
        Therefore, under the Federal Food, Drug, and Cosmetic Act and under 
    authority delegated to the Commissioner of Food and Drugs, 21 CFR part 
    310 is amended as follows:
    
    PART 310--NEW DRUGS
    
        1. The authority citation for 21 CFR part 310 continues to read as 
    follows:
    
        Authority: Secs. 201, 301, 501, 502, 503, 505, 506, 507, 512-
    516, 520, 601(a), 701, 704, 705, 721 of the Federal Food, Drug, and 
    Cosmetic Act (21 U.S.C. 321, 331, 351, 352, 353, 355, 356, 357, 
    360b-360f, 360j, 361(a), 371, 374, 375, 379e; secs. 215, 301, 
    302(a), 351, 354-360F of the Public Health Service Act (42 U.S.C. 
    216, 241, 242(a), 262, 263b-263n).
    
        2. Section 310.545 is amended by revising paragraphs (a)(15) and 
    (d)(1) and by adding new paragraph (d)(18) to read as follows:
    
    
    Sec. 310.545  Drug products containing certain active ingredients 
    offered over-the-counter (OTC) for certain uses.
    
        (a) * * *
        (15) Topical otic drug products for the prevention of swimmer's ear 
    and for the drying of water-clogged ears--(i) Approved as of May 7, 
    1991.
        Acetic acid
        (ii) Approved as of August 15, 1995.
        Glycerin and anhydrous glycerin
        Isopropyl alcohol
    * * * * *
        (d) * * *
        (1) May 7, 1991, for products subject to paragraphs (a)(1) through 
    (a)(2)(i), (a)(3) through (a)(4), (a)(6)(i)(A), (a)(6)(ii)(A), (a)(7) 
    (except as covered by paragraph (d)(3) of this section), (a)(8)(i), 
    (a)(9) through (a)(10)(iii), (a)(12)(i) through (a)(12)(iv), and 
    (a)(14) through (a)(18)(i) of this section.
    * * * * *
        (18) August 15, 1995, for products subject to paragraph (a)(15)(ii) 
    of this section.
    * * * * *
    
        Dated: January 31, 1995.
    William K. Hubbard,
    Interim Deputy Commissioner for Policy.
    [FR Doc. 95-3803 Filed 2-14-95; 8:45 am]
    BILLING CODE 4160-01-F
    
    

Document Information

Effective Date:
8/15/1995
Published:
02/15/1995
Department:
Food and Drug Administration
Entry Type:
Rule
Action:
Final rule.
Document Number:
95-3803
Dates:
August 15, 1995.
Pages:
8916-8920 (5 pages)
Docket Numbers:
Docket N0. 77N-334S
RINs:
0905-AA06
PDF File:
95-3803.pdf
CFR: (3)
21 CFR 310.545(a)(15)
21 CFR 344.52(b)
21 CFR 310.545