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- Federal Register -- December 21, 2007 -- The Food and Drug
Administration (FDA) is announcing an opportunity for public comment
on its intent to reevaluate the scientific evidence for two previously
authorized health claims (dietary lipids (fat) and cancer; soy
protein and risk of coronary heart disease) and two qualified
health claims that were the subject of letters of enforcement
discretion (antioxidant vitamins and risk of certain cancers;
selenium and certain cancers). The agency is undertaking a reevaluation
of the scientific basis for these authorized health claims and
qualified health claims because of new scientific evidence that
has emerged for these substance-disease relationships. The new
scientific evidence may have the effect of weakening the substance-disease
relationship for these authorized health claims and either strengthening
or weakening the scientific support for the substance-disease
relationship for these qualified health claims.
DATES: Submit written or electronic comments
by February 19, 2008.
ADDRESSES: You may submit comments, identified
by Docket No. 2007N-0464, by any of the following methods:
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Submit electronic comments in the following ways:
* Federal eRulemaking Portal: http://www.regulations.gov. Follow
the instructions for submitting comments.
* Agency Web site: http://www.fda.gov/dockets/ecomments. Follow
the instructions for submitting comments on the agency Web site.
Submit written submissions in the following ways:
* FAX: 301-827-6870.
* Mail/Hand delivery/Courier (for paper, disk, or CD-ROM submissions):
Division of Dockets Management (HFA-305), Food and Drug Administration,
5630 Fishers Lane, rm. 1061, Rockville, MD 20852.
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To ensure more timely processing of comments, FDA is no longer
accepting comments submitted to the agency by e-mail. FDA encourages
you to continue to submit electronic comments by using the Federal
eRulemaking Portal or the agency Web site, as described previously,
in the ADDRESSES portion of this document under Electronic Submissions.
Instructions: All submissions received must
include the agency name and docket number for this notice. All
comments received may be posted without change to http://www.fda.gov/ohrms/dockets/default.htm,
including any personal information provided. For additional information
on submitting comments, see the "How to Submit Comments"
heading of the SUPPLEMENTARY INFORMATION section of this document.
Docket: For access to the docket to read background
documents or comments received, go to http://www.fda.gov/ohrms/dockets/default.htm
and insert the docket number, found in brackets in the heading
of this document, into the "Search" box and follow the
prompts and/or go to the Division of Dockets Management, 5630
Fishers Lane, rm. 1061, Rockville, MD 20852.
- FOR FURTHER INFORMATION CONTACT: Claudine Kavanaugh,
Center for Food Safety and Applied Nutrition (HFS-830), Food and
Drug Administration, 5100 Paint Branch Pkwy., College Park, MD
20740-3835, 301-436-1450, FAX: 301-436-2636.
SUPPLEMENTARY INFORMATION: The Nutrition Labeling
and Education Act of 1990 (NLEA) (Public Law 101-553) was designed
to give consumers more scientifically valid information about
foods they eat. Among other provisions, the NLEA directed FDA
to issue regulations providing for the use of statements that
describe the relationship between a substance and a disease (health
claims) in the labeling of foods, including dietary supplements,
after such statements have been reviewed and authorized by FDA.
/1/ For these health claims, that is, statements about substance-disease
relationships, FDA has defined the term "substance"
by regulation as a specific food or food component ( SEC 101.14(a)(2)
(21 CFR 101.14(a)(2))). An authorized health claim may be used
on both conventional foods and dietary supplements, provided that
the substance in the product and the product itself meet the appropriate
standards in the authorizing regulation. Health claims are directed
to the general population or designated subgroups (e.g., the elderly)
and are intended to assist the consumer in maintaining healthful
dietary practices.
FOOTNOTE 1 In 1997, Congress enacted the Food
and Drug Administration Modernization Act, which established an
alternative authorization procedure for health claims based on
authoritative statements of certain federal scientific bodies
or the National Academy of Sciences. This notice does not address
that alternative procedure. END FOOTNOTE
Under section 403(r)(4)(A)(i) of the Federal Food, Drug, and
Cosmetic Act (the act) (21 U.S.C. 343(r)(4)(A)(i)), any person
may petition FDA to issue a health claim regulation. In evaluating
the petition, FDA considers whether there is "significant
scientific agreement" (SSA) based on the totality of publicly
available scientific evidence concerning the relationship that
is the subject of the claim. This standard derives from section
403(r)(3)(B)(i) of the act (21 U.S.C. 343(r)(3)(B)(i)), which
provides that FDA shall authorize a health claim to be used on
conventional foods if the agency "determines based on the
totality of the publicly available scientific evidence (including
evidence from well-designed studies conducted in a manner which
is consistent with generally recognized scientific procedures
and principles), that there is significant scientific agreement,
among experts qualified by scientific training and experience
to evaluate such claims, that the claim is supported by such evidence."
This scientific standard was prescribed by statute for conventional
food health claims; by regulation, FDA adopted the same standard
for dietary supplements health claims (see SEC 101.14(c)).
In evaluating a petition for an authorized health claim, if FDA
concludes that the evidence supporting the relationship that is
the subject of the claim does not meet the SSA standard, the agency
considers whether there is credible evidence to support a qualified
health claim. FDA may issue a letter of enforcement discretion
for a qualified health claim where the totality of scientific
evidence supporting the relationship that is the subject of the
claim is credible but does not meet the SSA standard. Qualified
health claims contain qualifying language about the level of scientific
evidence to ensure consumers receive accurate information about
the claim.
The genesis of qualified health claims was the court of appeals
decision in Pearson v. Shalala (Pearson). In that case, the plaintiffs
challenged FDA's decision not to authorize health claims for four
specific substance-disease relationships in the labeling of dietary
supplements. Although the district court ruled for FDA (14 F.
Supp. 2d 10 (D.D.C. 1998)), the U.S. Court of Appeals for the
D.C. Circuit reversed the lower court's decision (164 F.3d 650
(D.C. Cir.1999)). The appeals court held that the First Amendment
does not permit FDA to reject health claims that the agency determines
to be potentially misleading unless the agency also reasonably
determines that a disclaimer would not eliminate the potential
deception.
In the Federal Register of October 26, 1999 (64 FR 57700), the
agency authorized a health claim for soy protein and risk of coronary
heart disease (21 CFR 101.82). Since authorizing this health claim,
numerous studies have evaluated the relationship between soy protein
and coronary heart disease, and the findings of these studies
are inconsistent. The Agency for Healthcare Research and Quality
(AHRQ) released a report in July 2005 outlining the effects of
soy products on health outcomes including cardiovascular disease
and concluded that soy products appear to exert a small benefit
on low-density lipoprotein (LDL)-cholesterol (Ref. 1). However,
it is not clear whether soy protein (versus other types of soy
products) was responsible for such a benefit. The AHRQ report
included studies that evaluated substances in addition to soy
protein (e.g., isoflavones). In addition, the AHRQ report used
markers of cardiac function (e.g., triglycerides, endothelial
function, oxidized LDL) that are not validated surrogate endpoints
recognized by the agency for heart disease risk. The agency intends
to evaluate the scientific evidence on soy protein and the risk
of coronary heart disease to determine if the totality of the
scientific evidence continues to meet the significant scientific
agreement standard.
In the Federal Register of January 6, 1993 (58 FR 2787), FDA
authorized a health claim on dietary lipids (fat) and cancer (21
CFR 101.73). In the years since authorizing this health claim,
numerous studies have been published evaluating this substance-disease
relationship. The Institute of Medicine (IOM) of the National
Academy of Sciences, an authoritative body, published a report
that reviewed the evidence on dietary lipid consumption and cancer
risk (Ref. 2). The IOM reported in its review of the literature
that the association between diets high in fat and increased cancer
risk has been weakened by recent epidemiological studies. The
IOM report set an acceptable macronutrient distribution range
(AMDR) for total fat, however, it was not set based on cancer
as a disease outcome because of insufficient scientific evidence
linking consumption of fat with cancer risk. One factor in determining
the AMDR is the long-term intake level of a nutrient that can
minimize the potential for chronic disease. The agency intends
to reevaluate the scientific evidence on dietary lipids and cancer
risk and determine if the totality of the evidence continues to
meet the significant scientific agreement standard.
Section 10.25(b) (21 CFR 10.25(b)) states that the Commissioner
of Food and Drugs may initiate a proceeding to issue, amend, or
revoke a regulation or take or refrain from taking any other form
of administrative action. FDA intends to evaluate whether the
currently available scientific evidence concerning the substance-disease
relationship for the authorized health claims, dietary lipids
and cancer and soy protein and coronary heart disease, continues
to support its previous decisions on these authorized health claims.
If the agency decides to take action to amend or revoke one or
both of these health claims, after completing its review of the
current scientific evidence, the agency will publish its findings
and solicit comments on them before the agency takes any action
with respect to revising the particular health claim. Interested
persons may submit scientific information about these two specific
health claims in response to this notice.
In 2003, FDA issued two letters on the use of the agency's enforcement
discretion for qualified health claims on antioxidant vitamins
(vitamins E and C) and risk of certain cancers (Ref. 3) and selenium
and certain cancers and anticarcinogenic effects in the body (Ref.
4). In May 2006, AHRQ issued a report evaluating the use of multivitamin/mineral
supplements and the risk of chronic disease (Ref. 5). The report
did not identify any studies on the efficacy of vitamin C supplements
and cancer risk. In addition, the report concluded that the overall
strength of the evidence for vitamin E and selenium supplements
on cancer risk is very low (vitamin E) and low (selenium). The
agency intends to reevaluate the scientific evidence on these
two qualified health claims and determine if the scientific evidence
continues to support the qualified health claim, and if so, whether
the qualified health claim language should be modified to reflect
a stronger or weaker relationship.
If the agency decides a change may be needed with respect to
one or both of these claims, the agency intends to publish its
findings and solicit comments on them. Interested persons may
submit scientific information about these two specific qualified
health claims in response to this notice.
Reevaluating Cancer Health Claims
by Cancer Site
In the final rule authorizing a health claim for dietary fat
and cancer, FDA considered whether such a claim should specifically
address the types of cancer affected by a diet that is low in
total fat, or whether the claim should not be site-specific (58
FR 2787 at 2788 through 2789). FDA ultimately decided that the
identification of specific sites of affected cancers would not
be appropriate due, in part, to weaker data on the relationship
between dietary fat and breast cancer and the possibility of a
wider variety of affected sites for the dietary fat and cancer
relationship. Therefore, FDA required that the terms "some
types of cancer" or "some cancers" be used in specifying
the disease for this health claim relationship (id.). The antioxidant
and cancer and selenium and cancer qualified health claims also
contain similar language, i.e., "certain forms of cancer,"
to be used in specifying the disease. However, in other qualified
health claims for a substance and cancer relationship (Refs. 6,
7, and 8), the agency considered separate qualified health claims
for each type of cancer.
Cancer is a constellation of more than 100 different diseases,
each characterized by the uncontrolled growth and spread of abnormal
cells (Ref. 9). Cancer is categorized into different types of
diseases based on the organ and tissue sites (Ref. 10). Cancers
at different organ sites have different risk factors, treatment
modalities, and mortality risk (Ref. 9). Both genetic and environmental
(including diet) risk factors may affect the risk of different
types of cancers. Risk factors may include a family history of
a specific type of cancer, cigarette smoking, alcohol consumption,
overweight and obesity, exposure to ultraviolet or ionizing radiation,
exposure to cancer-causing chemicals, and dietary factors. The
etiology, risk factors, diagnosis, and treatment for each type
of cancer are unique (Refs. 11 and 12). Because each form of cancer
is a unique disease based on organ site, risk factors, treatment
options, and mortality risk, FDA's current approach is to evaluate
each form of cancer individually in a health claim or qualified
health claim petition to determine whether the scientific evidence
supports the potential substance-disease relationship for any
type of cancer, each of which constitutes a disease under SEC
101.14(a)(5).
The agency intends to consider, as part of its reevaluation of
the scientific evidence for dietary fat, antioxidant, and selenium
and their association with a reduced risk of cancer, claim language
to reflect specific types of cancer rather than "certain
forms of cancer" (or similar language).
II. How to Submit Comments
Interested persons may submit to the Division of Dockets Management
(see ADDRESSES) written or electronic comments regarding this
document. Submit a single copy of electronic comments or two paper
copies of any mailed comments, except that individual may submit
one paper copy. Comments are to be identified with the docket
number found in brackets in the heading of this document. Received
comments may be seen in the Division of Dockets Management between
9 a.m. and 4 p.m., Monday through Friday.
Please note that in January 2008, the FDA Web site is expected
to transition to the Federal Dockets Management System (FDMS).
FDMS is a Government-wide, electronic docket management system.
After the transition date, electronic submissions will be accepted
by FDA through the FDMS only. When the exact date of the transition
to FDMS is known, FDA will publish a Federal Register notice announcing
that date.
III. References
The following references have been placed on display in the Division
of Dockets Management (HFA-305), Food and Drug Administration,
5630 Fishers Lane, rm. 1061, Rockville, MD 20852, and may be seen
by interested persons between 9 a.m. and 4 p.m., Monday through
Friday. (FDA has verified the Web site addresses, but we are not
responsible for subsequent changes to the Web sites after this
document publishes in the Federal Register.)
1. Balk E, Chung M, Chew P, Ip S, Raman G, Kupelnick B, Tatsioni
A, Sun Y, Wolk B, DeVine D, Lau J. Effects of Soy on Health Outcomes.
Summary, Evidence Report/Technology Assessment No. 126. (Prepared
by the Tufts-New England Medical Center Evidence-based Practice
Center under Contract No. 290-02-0022.) AHRQ Publication No. 05-E024-1.
Rockville, MD: Agency for Healthcare Research and Quality. July
2005.
2. Institute of Medicine, National Academy of Sciences. Dietary
Referece Intakes for energy, carbohydrate, fiber, fat, fatty acids,
cholesterol, protein and amino acids, Chapter 11 page 808. National
Academy Press. Washington, D.C. 2005.
3. Antioxidant vitamins and risk of certain cancers, April 1,
2003, http://www.cfsan.fda.gov/[tilde]dms/ds-ltr34.html.
4. Selenium and certain cancers, February 21, 2003, Docket No.
2002P-0457 (formerly Docket No. 02P-0457), http://www.cfsan.fda.gov/[tilde]dms/ds-ltr35.html.
5. Huang HY, Caballero B, Chang S, Alberg A, Semba R, Schneyer
C, Wilson RF, Cheng TY, Prokopowicz G, Barnes II GJ, Vassy J,
Bass EB. Multivitamin/Mineral Supplements and Prevention of Chronic
Disease. Evidence Report/Technology Assessment No. 139. (Prepared
by The Johns Hopkins University Evidence-based Practice Center
under Contract No. 290-02-0018). AHRQ Publication No. 06-E012.
Rockville, MD: Agency for Healthcare Research and Quality. May
2006.
6. Tomatoes and prostate, ovarian, gastric and pancreatic cancers,
November 8, 2005, Docket No. 2004Q-0201, http://www.cfsan.fda.gov/[tilde]dms/qhclyco.html.
7. Green tea and prostate and breast cancer risk, June 30, 2005,
Docket No. 2004Q-0083, http://www.cfsan.fda.gov/[tilde]dms/qhc-gtea.html.
8. Calcium and colon/rectal, breast and prostate cancers and
recurrent polyps, October 12, 2005, Docket No. 2004Q-0097, http://www.cfsan.fda.gov/[tilde]dms/qhcca2.html.
9. American Cancer Society, Cancer Facts and Figures, 2004.
10. National Cancer Institute, Dictionary of Cancer Terms, http://www.cancer.gov/Templates/db_alpha.aspx?CdrID=45333.
11. Hord NG, Fenton JI. Context is everything: mining the normal
and preneoplastic microenvironment for insights into the diet
and cancer risk conundrum. Molecular Nutrition and Food Research,
2007, 51:100-106.
12. Milner JA. Diet and Cancer: Facts and Controversies. Nutrition
and Cancer, 2006, 56:216-224.
Dated: December 6, 2007.
Barbara Schneeman,
Director, Office of Nutritional Products, Labeling, and Dietary
Supplements, Center for Food Safety and Applied Nutrition.
[FR Doc. E7-24813 Filed 12-20-07; 8:45 am]
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