Optimal
Drug Therapy in Dermatology 
THE ROLE OF
CONTEMPORARY CLINICAL GUIDELINES
The contemporary emphasis on cost-control has compelled health caregivers both
individually and as professional groups to re-evaluate their attitudes and
practices regarding patient care. Essentially, the current dilemma can be summarized as
follows: How do we continue to provide quality care, while keeping costs under control?
The concept of Optimal Drug Therapy is basically a response to this conundrum;
under this concept, the efficacy, safety and cost-effectiveness of a particular therapy
are carefully weighed and balanced according to each patient and his/her clinical
situation. In other words, clinical consideration is given to the needs of society at
large (cost-effectiveness), while ministering to the needs of individual patients
(efficacy, safety).
Todays clinical guidelines have crystallized these criteria (efficacy, safety and
cost-effectiveness) by formulating algorithms with indications for first-, second- and
third-line therapies. Although these indications would appear to be clear-cut, in practice
the application of clinical guidelines is often a complex and highly individualized
process.
Individualizing
Therapy
As an
illustration of this individualized process, consider the way
cost-effectiveness of therapy is assessed.
It is well known that cost of treatment is an important factor for government
(formularies), group (insurance companies) and individual (patients) payors. However, it
should be noted that the pharmacoeconomics of a drug does not merely take into account its
purchase value; of equal importance is its efficacy and safety. In other words, a drug may
be inexpensive but:
- Is it effective? (Treatment failures, relapses or recurrences could necessitate
further treatment)
- Is it safe? (Adverse effects may necessitate the use of other drugs for symptom
control, or may trigger noncompliance)
Thus, cost-effectiveness of therapy can only be determined by weighing its actual cost,
along with the other criteria involved namely efficacy and safety and
assessing their impact on the patient and his/her clinical situation.
Compliance
There is a fourth factor implicit within this Optimal Drug Therapy pyramid:
compliance or patient acceptance. Once again, therapeutic compliance is related to all the
preceding factors: If a drug is efficacious, safe and affordable, there is a higher
likelihood of compliance. On the other hand, if a drug does not satisfactorily meet one or
more of these criteria, it needs to be asked: What is the cost of noncompliance?
Emergency room visits, return visits to the physician, new drug prescriptions, and
secondary complications may all result from noncompliance with the initial therapy. Apart
from the human consequences, the cost of noncompliance from a macroeconomic standpoint
ranges from 7 to 9 billion dollars a year, according to recent estimates.*
Applications
In the following program, discussions surrounding Optimal Drug Therapy are aimed
chiefly at promoting comprehensive care of our patients that is, administering the
right treatment, with the right dose, for the right amount of time and at the right price.
* Coambs RB, Jensen P, Her MH, et al. Review of the scientific
literature on the prevalence, consequences, and health costs of noncompliance &
inappropriate use of prescription medication in Canada. Pharmaceutical Manufacturers
Association of Canada, Ottawa, Ontario, 1995. |