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P E R S P E C T I V E
D T C A D V E R T I S I N G
W E B E X C L U S I V E
28 April 2004
Direct-To-Consumer Advertising:
Developing Evidence-Based Policy
To Improve Retention And Comprehension
New standards are needed that
focus on consumers, not health care professionals.
By David L. Riggs, Stacy M.
Holdsworth, and David R. McAvoy
ABSTRACT:
Pharmaceutical advertising was historically directed toward health care professionals
and mainly communicated through medical journals. The arrival of direct-to-consumer
advertising has sparked both praise and criticism. Although current Food and
Drug Administration requirements for drug promotion were written from a health
care professional perspective, the same regulations have been applied to advertising
directed at consumers. This has led to questions regarding the appropriate method
for communicating detailed medical information. Rigorous research is needed
to evaluate and determine the most effective format for communicating benefit
and risk information to consumers. New standards for drug advertising to consumers
should be grounded in data derived from this type of research.
The value of direct-to-consumer (DTC) advertising to patients has been demonstrated
by survey research conducted by the U.S. Food and Drug Administration (FDA).1
The FDA strictly regulates the content and form of this advertising. However,
it remains unclear if patients are able to truly understand the advertising
messages they read and hear about prescription medicines.2
This is an issue of importance to regulators, the medical community, the pharmaceutical
industry, and most importantly, to consumers.
Recent draft guidance from the FDA seeks to develop initiatives resulting in
better-informed consumers.3 Current FDA regulations
are geared toward promotion to health care professionals, not to consumers,
and, among other things, the new guidance illustrates that the existing regulatory
structure would benefit from enhancements for a consumer audience.
These issues have stirred debate among academics on the impact of DTC pharmaceutical
advertising. The Health Affairs Web Exclusives by Joel Weissman and colleagues
and by Steven Woloshin and colleagues help to define this debate, and they illustrate
the need for revised DTC requirements that are geared more toward consumers.4
Here we examine some challenges associated with delivering benefit and risk
information to consumers, with an emphasis on the latter. While pursuit of more
consumer-friendly advertisements is important, consumers are not and should
not be in a position to make prescription medicine decisions on their own. Health
professionals receive extensive training over many years on medicines and pharmacology
and are licensed to prescribe medications based on this training. An advertisement
should inform enough to lead to a meaningful discussion with a health professional
but need not, and should not, take the place of the learned intermediary.
Benefit Information
To communicate efficacy information more effectively, Woloshin and colleagues
propose that a “benefit box” be added to the brief summary page that
is usually located on the back page of print advertisements. Although this is
an intriguing concept, the authors’ solution is problematic, at least as
proposed. Problems with the sampling methods, design flaws, and questionable
assumptions leave open the possibility that the findings suffer from considerable
bias, which makes the results difficult to interpret and casts doubt on the
extent to which they can be generalized. The authors even acknowledge that their
methods caused some respondents to underestimate drug effectiveness.5
Although a benefit box could prove useful to consumers, further research is
needed that incorporates sound scientific designs and appropriate measures.
What is needed for development of an effective DTC policy is research that begins
with a prestated hypothesis tested using samples that can be projected to the
population of study interest (as opposed to use of the convenience sampling
methods by Woloshin and colleagues).
Risk Information
Just as Woloshin and colleagues noted that consumers may not understand the
efficacy claims contained in pharmaceutical advertising, the FDA and others
are clearly concerned that risk information is not being comprehended in its
current format, even when the communication follows requirements set forth in
the FDA’s advertising regulations.6 A conventional
approach used by sponsors to satisfy the regulatory requirements for presentation
of risk information in print ads has been to reproduce safety language taken
directly from the prescribing information given to physicians. This attempt
to fulfill the brief summary requirement is not consumer-friendly, nor does
it uniformly focus on the most important clinical risk information related to
the product; thus, it is not likely to be useful for consumers. In fact, research
suggests that many consumers either do not read the brief summary in its current
format, are unaware of it, or do not recall it.7
These results emphasize the need for focused efforts to improve the format for
communication of risk to consumers.
The pending FDA draft guidance on risk disclosures in print ads outlines alternative
methods for fulfilling the brief summary requirement.8
According to the guidance, sponsors may comply with this requirement in one
of the following ways: (1) continue using the current brief summary format,
(2) use approved patient labeling (patient package insert, or PPI) in its entirety,
(3) eliminate benefit and disease state information and only present risk information
from the PPI, or (4) create a consumer-friendly “highlights” section
derived from the proposed new rule for physician labeling.9
Although these approaches certainly appear to communicate in a more consumer-friendly
manner, it is not clear whether these changes alone would increase the usefulness
and improve retention and comprehension associated with consumer advertisements,
and the FDA provides no data in this regard.
The draft FDA guidance also appears to trend toward a “less is more”
approach in communicating risk information. It is not clear whether the guidance,
when implemented, will result in a more effective delivery of risk information.
However, such an approach may facilitate retention and comprehension of product
risk information. In recently issued comments, the Federal Trade Commission
(FTC) advocated a similar position.10
Presentation of safety information that focuses only on the product risk information
most important to consumers may mean that consumers retain and comprehend the
information better. Numerous approaches might be appropriate for risk communication.
While traditional methods have focused on a combination of risk presentation
within the body of the advertisement as well as the accompanying brief summary
page, varying formats may lend themselves to a more concise and straightforward
delivery of the important safety information. For example, a risk information
window in the body of an ad could contain the product’s most important
safety information and eliminate the need for an additional page of small-type
text listing numerous contraindications, warnings, precautions, and side effects.
Research comparing these options is needed.
Policy Development Needs
The FDA’s research has been helpful in defining the problem; a different
type of research is needed to create a solution. What is needed is for the FDA
to develop an evidence-based policy using research that controls for different
ad variables in a representative population. Such research should analyze both
traditional and nontraditional methods of risk communication.
The recently released draft guidance suggests that sponsors include risk information
ranging from side effects to all contraindications, warnings, and major precautions
contained in the physician prescribing information. However, consumers may need
to receive information on only the most important adverse events related to
a product. Also, certain medical warnings and terms might not be amenable to
conversion to consumer-friendly language (for example, “Do not take an
MAOI inhibitor with this medication”).
For these reasons, the FDA should base its final policy on research that defines
and tests a full range of ways to present risk information. Research is needed
that tests variations of the fair-balance presentation on the front page and
the brief summary on the back page beginning with more safety data and moving
toward less, to determine whether less information is actually more.
However, the research must do more than just focus on different ways to disclose
risk information, because the ad is read in a broader promotional context. The
risk and benefit components of consumer ads must not be looked at in isolation
(for example, Woloshin and colleagues focused exclusively on efficacy). The
FDA rules require ads to contain “fair balance.” It is essential that
the “fair balance” definition be viewed in its literal interpretation:
a true (proportionate) balance of a product’s efficacy and safety information.
Because of this, any research undertaken to test a variety of risk disclosure
options should be conducted by placing these variations within the body of an
ad that also contains efficacy statements, with a goal of ascertaining the reader’s
overall understanding of risk and benefit. Such research should expose one set
of readers to one ad variation and a different set to a different variation,
with sample sizes large enough to test whether there are statistically significant
differences between the ads tested. Results would provide data on the comprehension,
retention, and readability of the various ads.
Such research would then form the evidentiary basis for developing advertising
requirements that are driven by consumers, not by regulators or physicians.
The FDA should defer its policy until this research can be completed. Research
leading to a new evidence-based policy on DTC would help the FDA make objective
choices on what information should be included in consumer ads. Evidence-based
policy is essential if subjectivity and interpretive differences are to be minimized.
Furthermore, evidence-based policy would facilitate consistency across all components
of the FDA, including various review divisions and the Division of Drug Marketing,
Advertising, and Communications.
Once the necessary research is in place and the FDA develops appropriate standards,
then the agency must decide whether to publish these standards in new rule making
or through a guidance document. Although all affected parties would likely prefer
the creation of informal guidance documents, given their convenience and timely
application, it may be difficult to reconcile certain consumer-driven needs
with what the law requires for pharmaceutical advertising, because those laws,
when promulgated, were aimed at health care professionals.
The FDA should not introduce new consumer-driven, evidence-based standards through
guidance that fails to meet the technical requirements of current regulations,
justifying this by telling the regulated industry that such standards are appropriate
pursuant to the FDA’s prosecutorial discretion.11
If this approach is adopted, there is no guarantee that ads will change at all.
For DTC prescription drug ads to become more understandable, the FDA must generate
the science that shows which ads accomplish this, then develop standards derived
from these data, reconciling such requirements with a regulatory structure that
is not now suited for consumer-friendly communications.
The authors acknowledge the contributions of Timothy R. Franson, Matthew
D. Rotelli, Angela K. Wade, Richard C. Ascroft, Carrie O’Connor, Douglas
W. Wilson, and Mary W. Elsner, all at Eli Lilly and Company.
NOTES
1. Food and Drug Administration, “FDA Releases Preliminary
Results of Physician Survey on Direct-to-Consumer Rx Drug Advertisements,”
FDA Talk Paper (13 January 2003).
2. Ibid.
3. See Food and Drug Administration, “The Food and Drug
Administration’s Strategic Action Plan, Protecting and Advancing America’s
Health: Responding to New Challenges and Opportunities,” August 2003, www.fda.gov/oc/mcclellan/strategic.html
(5 April 2004); and FDA, “Guidance for Industry—Brief Summary: Disclosing
Risk Information in Consumer-Directed Print Advertisements (Draft Guidance)”
(Washington: FDA, January 2004).
4. J.S. Weissman et al., “Physicians Report on Patient
Encounters Involving Direct-to-Consumer Advertising,” Health Affairs,
28 April 2004, content.healthaffairs.org/cgi/content/abstract/hlthaff.w4.219
(28 April 2004); and S. Woloshin et al., “The Value of Benefit Data in
Direct-to-Consumer Drug Ads,” Health Affairs, 28 April 2004, content.healthaffairs.org/cgi/content/abstract/hlthaff.w4.234
(28 April 2004).
5. See Woloshin et al., “The Value of Benefit Data,”
discussion on Avastat in “Interpretations and Limitations” section,
W4-242–W4-243.
6. FDA, “Guidance for Industry”; and 21 CFR, Part
202 (Prescription Drug Advertising).
7. See, for example, K. Aikin, “The Impact of Direct-to-Consumer
Prescription Drug Advertising on the Physician-Patient Relationship,” Presentation
at FDA public meeting on direct-to-consumer promotion, Washington, D.C., 22–23
September 2003, slide 5, www.fda.gov/cder/ddmac/aikin/sld005.htm
(15 April 2004). To the question, “How much of the brief summary do you
read? 56 percent responded a little/none in 1999, and 73 percent responded a
little/none in 2002. See also E. Slaughter, “Consumer Reaction to DTC Advertising
of Prescription Medicines, 1997 to 2002,” Presentation at FDA public meeting,
Washington, D.C., 22–23 September 2003, www.fda.gov/cder/ddmac/P1slaughter/index.htm
(13 April 2004). In that study, 46 percent of respondents were not aware of
or did not recall a brief summary.
8. FDA, “Guidance for Industry,” 3–6.
9. PPI labeling was approved by the FDA to communicate product
benefit and risk information in consumer-friendly language. For the proposed
new rule, see “Requirements on Content and Format of Labeling for Human
Prescription Drugs and Biologics; Requirements for Prescription Drug Product
Labels,” 65 Federal Register 81082 (22 December 2000).
10. Comments of the Staff of the Bureau of Consumer Protection,
the Bureau of Economics, and the Office of Policy Planning of the Federal Trade
Commission in the Matter of Request for Comments on Consumer-Directed Promotion,
Docket No. 2003N-0344 (2003).
11. The FDA appears to be headed in this direction. FDA, “Guidance
for Industry,” 3–6 (“FDA does not intend to object to a consumer-directed
print advertisement for a prescription drug on the ground that it does not present
risk information in compliance with the brief summary requirement.”).
Read related papers by
Joel Weissman et al., Steven
Woloshin et al., Pat
Kelly, James
Jeffords, Henry
Waxman, and Peter
Pitts.
David Riggs is a senior
regulatory associate at Eli Lilly and Company in Indianapolis, Indiana, where
Stacy Holdsworth (holdsworth_stacy_m{at}lilly.com)
is manager, U.S. Regulatory Affairs, and David McAvoy is an attorney and director
of the Office of Scientific and Regulatory Policy.
DOI: 10.1377/hlthaff.W4.249
©2004 Project HOPE–The People-to-People Health Foundation, Inc.
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