Beyond the Headlines: The Words of the Supreme Court Regarding Free Speech and the Pharmaceutical Marketplace Reply

Although there have been numerous articles written regarding the outcomes of several recent rulings of the Supreme Court of the United States (SCOTUS), it is a worthwhile exercise to review firsthand the SCOTUS ruling regarding the rights of pharmaceutical companies and their representatives to free speech in the marketplace.
What is Free Speech?
The First Amendment states that “Congress shall make no law abridging the freedom of speech or the press, or the right of the people to peaceably assemble”.  While the First Amendment has generally been interpreted to apply to an individual’s right to “free speech”, there is also protection granted to “commercial free speech”:
Commercial free speech is speech done on behalf of a company or individual for the intent of making a profit. It is economic in nature and usually has the intent of convincing the audience to partake in a particular action, often purchasing a specific product. Generally, the United States Supreme Court defines commercial speech as speech that “proposes a commercial transaction.” The idea of “Commercial Speech” was first introduced by the Supreme Court when it upheld Valentine v. Chrestensen (1942). In upholding the regulation, the Supreme Court said, “We are … clear that the Constitution imposes … no restraint on government as respects purely commercial advertising.” (1)
Regarding the relative importance of non-commercial individual “free speech” versus “commercial free speech”, Justice Clarence Thomas replied, in 44 Liquormart, Inc. v. Rhode Island (1996), that “I do not see a philosophical or historical basis for asserting that ‘commercial’ speech is of ‘lower value’ than ‘noncommercial’ speech.” (1)
The State of Vermont’s Legislation to Suppress Pharmaceutical Marketing
Vermont found that the “goals of marketing programs are often in conflict with the goals of the state” and that the “marketplace for ideas on medicine safety and effectiveness is frequently one-sided in that brand-name companies invest in expensive pharmaceutical marketing campaigns to doctors.”  Detailing, in the legislature’s view, caused doctors to make decisions based on “incomplete and biased information.”. Because they “are unable to take the time to re-search the quickly changing pharmaceutical market,” Vermont doctors “rely on information provided by pharmaceutical representatives.”  The legislature further found that detailing increases the cost of healthcare and health insurance, encourages hasty and excessive reliance on brand-name drugs, before the profession has observed their effectiveness as compared with older and less expensive generic alternatives, and fosters disruptive and repeated marketing visits tantamount to harassment.  The legislative findings further noted that use of prescriber-identifying information “increase[s] the effect of detailing programs” by allowing detailers to target their visits to particular doctors. Use of prescriber-identifying data also helps detailers shape their messages by “tailoring” their “presentations to individual prescriber styles, preferences,and attitudes.” (2)
The state of Vermont therefore passed law §4631 or Act 80 which stated:
“A health insurer, a self-insured employer, an electronic transmission intermediary, a pharmacy, or other similar entity shall not sell, license, or exchange for value regulated records containing prescriber-identifiable information, nor permit the use of regulated records containing prescriber-identifiable information for marketing or promoting a prescription drug, unless the prescriber consents . . . . Pharmaceutical manufacturers and pharmaceutical marketers shall not use prescriber-identifiable information for marketing or promoting a prescription drug unless the prescriber consents . . . .” (2)
While unilaterally prohibiting the sale of prescribing information to pharmaceutical companies, the law did allow the sale of information to allow the state of Vermont to mount educational programs to counter-detail or promote generics:

Act 80 also authorized funds for an “evidence-based prescription drug education program” designed to provide doctors and others with “information and education on the therapeutic and cost-effective utilization of prescription drugs.” §4622(a)(1). An express aim of the program is to advise prescribers “about commonly used brand-name drugs for which the patent has expired” or will soon expire. §4622(a)(2). Similar efforts to promote the use of generic pharmaceuticals are sometimes referred to as“counter-detailing.”  The counter detailer’s recommended substitute may be an older, less expensive drug and not a bioequivalent of the brand-name drug the physician might otherwise prescribe. Like the pharmaceutical manufacturers whose efforts they hope to resist, counter detailers in some States use prescriber-identifying information to increase their effectiveness. States themselves may supply the prescriber-identifying information used in these programs.(2)

The SCOTUS Ruling Overturns the Vermont Law
The SCOTUS overturned the Vermont law stating that the law violated the First Amendment by restricting both the content (it restricted the promotion of branded pharmaceutical content) and by restricting the person delivering the content depending upon their identity (it restricted a pharmaceutical representative from delivering the content).   The complete contents of the ruling can be found here, what follows are a series of summary statements:
“First, the State contends that its law is necessary to protect medical privacy, including physician confidentiality, avoidance of harassment, and the integrity of the doctor-patient relationship. Second, the State argues that §4631(d) is integral to the achievement of policy objectives—namely, improved public health and reduced healthcare costs. Neither justification withstands scrutiny.”
With respect to the Vermont contention that the dissemination of prescribing information violates a physician’s right to privacy, SCOTUS stated:
“Physicians can, and often do, simply decline to meet with detailers, including detailers who use prescriber-identifying information. Doctors who wish to forgo detailing altogether are free to give “No Solicitation” or “No Detailing” instructions to their office managers or to receptionists at their places of work.”  The defect in Vermont’s law is made clear by the fact that many listeners find detailing instructive. Indeed the record demonstrates that some Vermont doctors view targeted detailing based on prescriber-identifying information as “very helpful” because it allows detailers to shape their messages to each doctor’s practice.
With respect to the State’s contention that pharmaceutical marketing is counter to its policy objectives of improved public health and reducing costs SCOTUS stated:
“If pharmaceutical marketing affects treatment decisions, it does so because doctors find it persuasive. Absent circumstances far from those presented here, the fear that speech might persuade provides no lawful basis for quieting it. The State contends that §4631(d) advances important public policy goals by lowering the costs of medical services and promoting public health. If prescriber-identifying information were available for use by detailers, the State contends, then detailing would be effective in promoting brand-name drugs that are more expensive and less safe than generic alternatives. This logic is set out at length in the legislative findings accompanying §4631(d). Yet at oral argument here, the State declined to acknowledge that §4631(d)’s objective purpose and practical effect were to inhibit detailing and alter doctors’ prescription decisions.  The State’s reluctance to embrace its own legislature’s rationale reflects the vulnerability of its position. While Vermont’s stated policy goals may be proper, §4631(d) does not advance them in a permissible way. As the Court of Appeals noted, the “state’s own explanation of how” §4631(d) “advances its interests cannot be said to be direct.”  The State seeks to achieve its policy objectives through the indirect means of restraining certain speech by certain speakers—that is, by diminishing detailers’ ability to influence prescription decisions. Those who seek to censor or burden free expression often assert that disfavored speech has adverse effects. But the “fear that people would make bad decisions if given truthful information” cannot justify content-based burdens on speech. “The First Amendment directs us to be especially skeptical of regulations that seek to keep people in the dark for what the government perceives to be their own good.” These precepts apply with full force when the audience, in this case prescribing physicians, consists of “sophisticated and experienced” consumers.
“In an attempt to reverse a disfavored trend in public opinion, a State could not ban campaigning with slogans, picketing with signs, or marching during the daytime. Likewise the State may not seek to remove a popular but disfavored product from the marketplace by prohibiting truthful, nonmisleading advertisements that contain impressive endorsements or catchy jingles. That the State finds expression too persuasive does not permit it to quiet the speech or to burden its messengers.”
“The law’s express purpose and practical effect are to diminish the effectiveness of marketing by manufacturers of brand-name drugs. Just as the “inevitable effect of a statute on its face may render it unconstitutional,” a statute’s stated purposes may also be considered.  Here, the Vermont Legislature explained that detailers, in particular those who promote brand-name drugs, convey messages that “are often in conflict with the goals of the state.” 2007 Vt. No. 80, §1(3). The legislature designed §4631(d) to target those speakers and their messages for disfavored treatment. “In its practical operation,” Vermont’s law “goes even beyond mere content discrimination, to actual viewpoint discrimination.” R. A. V. v. St. Paul, 505 U. S. 377, 391 (1992). Given the legislature’s expressed statement of purpose, it is apparent that§4631(d) imposes burdens that are based on the content of speech and that are aimed at a particular viewpoint.  The First Amendment requires heightened scrutiny whenever the government creates “a regulation of speech because of disagreement with the message it conveys.” A “consumer’s concern for the free flow of commercial speech often may be far keener than his concern for urgent political dialogue.” That reality has great relevance in the fields of medicine and public health, where information can save lives.”
“To sustain the targeted, content-based burden §4631(d) imposes on protected expression, the State must show at least that the statute directly advances a substantial governmental interest and that the measure is drawn to achieve that interest.  There must be a “fit between the legislature’s ends and the means chosen to accomplish those ends.”  As in other contexts, these standards ensure not only that the State’s interests are proportional to the resulting burdens placed on speech but also that the law does not seek to suppress a disfavored message.”
“The State cannot engage in content-based discrimination to advance its own side of a debate.  The State gives possessors of the information broad discretion and wide latitude in disclosing the information, while at the same time restricting the information’s use by some speakers and for some purposes, even while the State itself can use the information to counter the speech it seeks to suppress. Privacy is a concept too integral to the person and a right too essential to freedom to allow its manipulation to support just those ideas the government prefers.”
“When it enacted §4631(d), the Vermont Legislature found that the “marketplace for ideas on medicine safety and effectiveness is frequently one-sided in that brand-name companies invest in expensive pharmaceutical marketing campaigns to doctors.” “The goals of marketing programs,” the legislature said, “are often in conflict with the goals of the state.” §1(3). The text of §4631(d), associated legislative findings, and the record developed in the District Court establish that Vermont enacted its law for this end. The State has burdened a form of protected expression that it found too persuasive. At the same time, the State has left unburdened those speakers whose messages are in accord with its own views. This the State cannot do.”
KENNEDY, J., delivered the opinion of the Court, in which ROBERTS, C. J., and SCALIA, THOMAS, ALITO, and SOTOMAYOR, JJ., joined. BREYER, J., filed a dissenting opinion, in which GINSBURG and KAGAN, JJ., joined.
The following SCOTUS Justices made the following public statements:
Chief Justice John G. Roberts, Jr.: “You want to lower your health care costs, not by direct regulation, but by restricting the flow of information to doctors…[the state is] censoring what they can hear to make sure they don’t have full information.” (3)
Justice Ruth Bader Ginsburg: The state is “interested in promoting the sale of generic drugs and correspondingly to reduce the sale of brand-name drugs, [but] you can’t lower the decibel level of one speaker so that another speaker, in this case the generics, can be heard better.”
 (3)
REFERENCES

2012: The Year of Failed Surrogate Endpoints Reply

By C. Michael Gibson, M.S., M.D.

2012 will go down as the year of failed surrogate endpoints.  The lack of clinical improvements associated with lowering HDL and increasing platelet inhibition are two notable examples.  What follows comes from my textbook chapter on surrogate endpoints on WikiDoc.org .

The Advantages of a Surrogate Endpoint

The assessment of “hard” primary clinical endpoints (such as death and heart attack) often requires large long-term clinical trials which can be quite expensive. The use of surrogate endpoints can allow trials to evaluate the efficacy of a new drug or device more rapidly, more efficiently and more inexpensively.

The Disadvantages of Surrogate Endpoints

There are several potential disadvantages of a surrogate endpoint.

1. The surrogate endpoint may intuitively be hypothesized to be related to a “hard endpoint” such as death or heart attack, but may not be.

2. While a surrogate endpoint may be related to a “hard endpoint” such as death or heart attack, it is not clear that a reduction in the surrogate endpoint will lead to an improvement in the “hard endpoint” in death or heart attack. Anti-diabetic agents have been shown to reduce long term glucose (Hemoglobin A1c or HbA1C). It was hypothesized that more intense glucose control (a reduction in HbA1C) would be associated with a lower rate of death and heart attack. However, despite lowering of HbA1C, rosiglitazone or Avandia was not associated with a reduction in death and MI, but with an increase in the RECORD trial [5] [6].

In another example, class III antiarrhythmic agents were associated with suppression of premature ventricular contractions or PVCs, but were associated with a higher rate of death.

3. While a surrogate endpoint may be related to a “hard endpoint, it may be an acausal association (the surrogate may not lie in the causal pathway to the “hard endpoint” and changing the surrogate endpoint may not change the “hard endpoint”.)

4. The agent may reduce the surrogate endpoint, but due to off target toxicity, may increase the risk of “hard endpoints” such as death or MI. Lower HDL is associated with a higher risk of adverse cardiac outcomes, Torcetrapib raises HDL and should therefore improve clinical outcomes, however, Torcetrapib administration was found to be associated with a higher rate of adverse clinical outcomes. It was felt that the potential benefit of Torcetrapib was reversed due to off target toxicity of a slight increase in blood pressure associated with Torcetrapib administration.

5. The relationship between the surrogate endpoint and the “hard endpoint” may be non-linear or may be a threshold effect. For example, in antiplatelet agent studies, it is unclear if ever greater levels of inhibition of platelet aggregation are associated with ever greater reductions in adverse outcomes, or if one must achieve just a certain “threshold” level of inhibition to improve outcomes.

There have been a number of instances when studies using surrogate markers have been used to show benefit from a particular treatment, but later, a repeat study looking at endpoints has not shown a benefit, or even a harm.[7]

Examples of Surrogate Endpoints

Examples of surrogate markers in current practice include:

  • Total cholesterol
  • Low density lipoprotein (LDL)
  • Coronary blood flow
  • Fragmented blood cells are a surrogate marker for organ failure or stroke in TTP
  • The S-phase duration, may be used as a surrogate marker for breast cancer occurrence;
  • CD4 count is a surrogate marker for death from HIV infection.
  • Tumor shrinkage
  • CEA levels in colon cancer trials
  • Prostate specific antigen PSA in prostate cancer.

Evaluation of a Surrogate Endpoint

There are multiple criteria that have been proposed to evaluate surrogate endpoints.

Does the Surrogate Lie in the Causal Pathway of Disease, or is it Simply a Prognostic Marker?

Examples of this criteria include CEA in colon cancer and PSA in prostate cancer. As stated by Thomas Flemming “While CEA and PSA are not the mechanism through which the disease process induces increased risk of the clinical-efficacy outcomes, so it is questionable whether treatment-induced changes in these markers could be relied upon to accurately predict treatment-induced effects on the clinical endpoints.[4]

Are there Multiple Causal Pathways Present?

If there are multiple causal pathways present, what is the relative strength of the proposed surrogate relative to that of other pathways. This may alternatively lead to an over or under estimate of the impact of the surrogate marker.

Is there “Off target” Toxicity Associated with Altering the Surrogate Endpoint?

It is possible that the intervention being test could be associated with other deleterious mechanisms of action that are independent of its intended therapeutic effects[4]. Very often, because such effects are unintended, they are unanticipated, unrecognized, and unrecorded.The classic example of this is the hypertension caused by torcetrapib, or the pro-arrhytmic effects of class III antiarrhythmia agents as demonstrated in the CAST trial[8].

Proposed Criteria for a Surrogate Endpoint

One investigator, Ross Prentice, proposed that the following two conditions must be meant[9]:

  1. The biological marker must be correlated with the clinical endpoint; and
  2. The marker must fully capture the net effect (on target efficacy and off target hazards) of the intervention on the clinical-efficacy endpoint.

From my perspective, a surrogate may be clinically relevant if the following three criteria are satisfied:

  1. The drug or device improves the surrogate
  2. Improvement in the surrogate is related to an improvement in a hard clinical endpoint
  3. The same drug or device improves the hard clinical endpoint

In the current cost constrained era there may be a temptation to utilize surrogate endpoints.   The failures of the past year,  however, provide a cautionary note regarding the hazards of surrogate endpoints.

References

  1. Cohn JN (2004). “Introduction to Surrogate Markers“. Circulation 109: IV20–1. American Heart Association. PMID 15226247. Retrieved on 2007-01-10.
  2. Controlled Clinical Trials 22:485–502 (2001))
  3. Naccarelli GV, Dougherty AH, Wolbrette D, Wiggins S (1991). “A critical appraisal of the cardiac arrhythmia suppression trial (CAST)”. Applied Cardiopulmonary Pathophysiology : ACP 4 (1): 9–16. PMID 10147539. Retrieved on 2010-10-31.
  4. 4.0 4.1 4.2 Fleming TR (2005). “Surrogate endpoints and FDA’s accelerated approval process“. Health Affairs (Project Hope) 24 (1): 67–78. doi:10.1377/hlthaff.24.1.67. PMID 15647217. Retrieved on 2010-11-21.
  5. Home PD, Pocock SJ, Beck-Nielsen H, Curtis PS, Gomis R, Hanefeld M, Jones NP, Komajda M, McMurray JJ (June 2009). “Rosiglitazone evaluated for cardiovascular outcomes in oral agent combination therapy for type 2 diabetes (RECORD): a multicentre, randomised, open-label trial“. Lancet 373 (9681): 2125–35. doi:10.1016/S0140-6736(09)60953-3. PMID 19501900. Retrieved on 2010-10-31.
  6. Nissen SE (March 2010). “Setting the RECORD Straight“. JAMA : the Journal of the American Medical Association 303 (12): 1194–5. doi:10.1001/jama.2010.333. PMID 20332408. Retrieved on 2010-10-31.
  7. Psaty BM, Weiss NS, Furberg CD, et al. (1999). “Surrogate end points, health outcomes, and the drug approval process for the treatment of risk factors for cardiovascular disease”. JAMA 282: 786–790.
  8. Echt DS, Liebson PR, Mitchell LB, Peters RW, Obias-Manno D, Barker AH, Arensberg D, Baker A, Friedman L, Greene HL (March 1991). “Mortality and morbidity in patients receiving encainide, flecainide, or placebo. The Cardiac Arrhythmia Suppression Trial“. The New England Journal of Medicine 324 (12): 781–8. doi:10.1056/NEJM199103213241201. PMID 1900101. Retrieved on 2010-11-21.
  9. Prentice RL (April 1989). “Surrogate endpoints in clinical trials: definition and operational criteria”. Statistics in Medicine 8 (4): 431–40. PMID 2727467. Retrieved on 2010-11-21.