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Healthy Skepticism Library item: 19162

Warning: This library includes all items relevant to health product marketing that we are aware of regardless of quality. Often we do not agree with all or part of the contents.

 

Publication type: Journal Article

Hansen RA, Chen SY, Gaynes BN, Maciejewski ML
Relationship of pharmaceutical promotion to antidepressant switching and adherence: a retrospective cohort study
Psychiatr Serv 2010 Dec; 61:(12):1232-8
http://psychservices.psychiatryonline.org/cgi/content/abstract/61/12/1232


Abstract:

OBJECTIVE: Patient nonadherence and
early discontinuation of
antidepressant treatment are common.
Pharmaceutical promotion to
consumers and physicians may
influence this behavior. The
objectives of this study were to
explore whether promotional spending
is related to early antidepressant
switching, acute-phase adherence,
and continuation-phase adherence.

METHODS: A retrospective cohort
study was conducted with national
promotional expenditure data merged
with medical and prescription claims
data from a large national health
plan affiliated with i3 Innovus.
Included were records for
continuously insured adults with
major depression who received a new
prescription for an antidepressant:
5,010 were in the cohort assessed
for switching, 4,457 were in the
cohort assessed for acute-phase
adherence, and 1,772 were in the
cohort assessed for
continuation-phase adherence.
National promotional efforts were
estimated by examining
inflation-adjusted spending on
direct-to-consumer advertising
(DTCA) and physician detailing.
Clinical guidelines were used to
create proxies for aspects of
treatment outcomes, including
antidepressant switching and
adherence in the acute phase and
adherence in the continuation phase.
Logistic regression models estimated
the association between promotional
variables and these outcomes.

RESULTS: Patients taking medications
that were more highly promoted to
physicians were less likely to
switch medications (odds ratio
[OR]=.61) and were more likely to be
adherent during the acute phase of
treatment (OR=1.13). DTCA had little
effect on switching or
antidepressant adherence.

CONCLUSIONS: Detailing to physicians
was associated with lower rates of
medication switching and had a
positive relationship with patient
adherence during early
antidepressant treatment. This
finding indicates that certain
aspects of promotion may have
beneficial effects on antidepressant
use.

 

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...to influence multinational corporations effectively, the efforts of governments will have to be complemented by others, notably the many voluntary organisations that have shown they can effectively represent society’s public-health interests…
A small group known as Healthy Skepticism; formerly the Medical Lobby for Appropriate Marketing) has consistently and insistently drawn the attention of producers to promotional malpractice, calling for (and often securing) correction. These organisations [Healthy Skepticism, Médecins Sans Frontières and Health Action International] are small, but they are capable; they bear malice towards no one, and they are inscrutably honest. If industry is indeed persuaded to face up to its social responsibilities in the coming years it may well be because of these associations and others like them.
- Dukes MN. Accountability of the pharmaceutical industry. Lancet. 2002 Nov 23; 360(9346)1682-4.