PhRMA, the US drug industry trade organization, says in its DTC Guiding Principles: "DTC advertising of prescription medicines can benefit the public health by increasing awareness about diseases, educating patients about treatment options, motivating patients to contact their physicians and engage in a dialogue about health concerns, increasing the likelihood that patients will receive appropriate care for conditions that are frequently under-diagnosed and under-treated, and encouraging compliance with prescription drug treatment regimens."
It sounds like a compelling argument until you look at the numbers and data supplied by pro-industry groups:
Pitts, for example, cites these numbers from FDA studies in a recent Drug Wonks blog post:
- 6% [of] all doctors’ appointments are scheduled because a consumer saw a DTC commercial [which means 94% are NOT driven by DTC], and
- in 6% of those DTC-generated office visits, a previously undiagnosed condition was discovered [which means that only 3.6 out of 1,000 office visits result in discovering an undiagnosed condition as a result of DTC advertising]
Keep in mind that not all those undiagnosed conditions will be treated by the advertised brand -- there may be generic brands available or the brand may not be appropriate for a particular patient or the condition may not lend itself to treatment by any drug at all!
If you think about it, all this means that DTC advertising is a terribly inefficient method of getting people diagnosed and treated with the products that are advertised.
Why then does the drug industry spend $5 billion annually on DTC advertising?
Considering that some of the best minds in DTC advertising claim that they do not know how DTC works, I'd like to offer this:
DTC is not an efficient means for generating new prescriptions. It really is a compliance tool! That is, DTC works by convincing people to continue taking the brand advertised. It may also be effective in encouraging people to switch brands, which is something I've often thought about when I see DTC ads.[Note that this role for DTC was hinted at in the PhRMA statement quoted above, which mentioned compliance at the end of its long list of DTC benefits. My point is that compliance should be put at the beginning of the list of DTC benefits, not at the end.]
Whenever compliance issues are discussed in trade publications and at conferences, DTC advertising is often criticized as being too focused on gaining new scripts and not focused enough on compliance. Yet DTC may be the greatest compliance tool there is! [BTW, that's not saying much. The current rate of compliance -- about 50% -- stinks!]