New Independent Harvard Business School Study Debunks Myth That PBM Mail-Service Pharmacies Favor Brand-Name Prescriptions More than Retail Pharmacies
Wednesday, July 28th, 2004Independent, Peer-Reviewed Analysis Posted on Health Affairs Website; Analysis Examined 670 Million Prescription Drug Claims
Implications for Medicare Prescription Drug Benefit Foreseen
Washington, DC; 07.28.04 — Directly refuting allegations made over the last year in the Medicare prescription drug debate by some of the nation’s largest retail pharmacies, a new, independent, and peer-reviewed analysis of 670 million prescription drug claims by Harvard Business School economists concludes that generic drug dispensing rates at PBM mail-service pharmacies are essentially the same as those at retail pharmacies and should serve to debunk â?? once and for all â?? the myth that PBMs ’steer’ consumers to higher-priced, brand-name drugs in mail-service pharmacies, the Pharmaceutical Care Management Association (PCMA) said today. PCMA is the national association representing pharmacy benefit managers (PBMs).
In stark contrast to a recent retail pharmacy-funded analysis alleging to examine this issue, the new Harvard Business School analysis was not funded at all by the PBM industry and is a peer-reviewed, independent analysis. Conducted by Marta Wosinska, Ph.D, and Robert Huckman, Ph.D of the Harvard Business School, the analysis, “Generic Dispensing and Substitution in Mail and Retail Pharmacies,” is slated to be posted on Health Affairs’ website later today.
These findings also have implications for the Medicare prescription drug benefit. Section 110 of Title One of the recently enacted Medicare Modernization Act instructs the US Federal Trade Commission (FTC) to conduct a study of mail-service pharmacies vis-a-vis retail pharmacies that takes into account PBM mail-service generic dispensing and substitution compared to retail-pharmacy generic dispensing and substitution. PCMA believes strongly that these data will help inform the FTC’s analysis as it works to complete the mandated study by Spring 2005.
“This new independent, peer-reviewed analysis from the Harvard Business School debunks the myth that PBM mail-service pharmacies favor brand-name prescription drugs more than retail pharmacies,” said PCMA President Mark Merritt. “These findings serve to reinforce what more and more consumers, purchasers, and policymakers are learning: the only real difference between retail pharmacies and PBM mail-service pharmacies is that the mail-service option is more cost-effective, convenient, and safe for consumers.”
The Harvard Business School analysis examined 670 million prescription drug claims processed by five large PBMs during the first six months of 2003. The analysis compared generic drug dispensing and substitution patterns at PBM-owned mail-service pharmacies versus retail pharmacies. In a fundamental difference from retail-pharmacy funded studies, this analysis adjusted for “therapeutic mix.” In plain English, the Harvard analysis takes into account the differences in the types of drugs consumers seek at mail-service pharmacies versus retail pharmacies. In the retail pharmacy setting, consumers typically seek prescriptions for acute conditions, whereas mail-service pharmacies are more likely to dispense prescriptions treating chronic conditions. The authors assert that this “therapeutic mix” adjustment is essential to allowing direct comparisons between PBM mail-service pharmacies and retail pharmacies.
Among the key findings from the Harvard Business School analysis:
The generic substitution rate for retail pharmacies and PBM mail-service pharmacies is essentially the same. For retail pharmacies, the generic substitution rate is 92 percent. For mail-service pharmacies, the generic substitution rate is 93 percent. Generic substitution rate refers to how often a generic is dispensed by a pharmacy when a generic alternative to the brand is available. Higher generic substitution rates at mail-service pharmacies actually may indicate a trend “in the opposite direction than that suggested by the conflict-of-interest argument,” according to the Harvard economists. The authors suggest that mail-service pharmacies may have more success in substituting generics for brands due to the generally longer time mail-service pharmacies have to fill a prescription.
The generic dispensing rate for retail pharmacies and PBM mail-service pharmacies is essentially the same. For retail pharmacies, the generic dispensing rate is 40 percent. For PBM mail-service pharmacies, the generic dispensing rate is 39 percent. The analysis takes into account the differences in the therapeutic mix between retail pharmacies and PBM pharmacies â?? that is, the differences in the types of drugs consumers are most likely to seek from each type of pharmacy.
The mail-service pharmacy option is an important avenue for consumers seeking more cost-effective options for purchasing their prescription drugs. Numerous data indicate that even deeper discounts are available through mail-service pharmacies than through the savings PBMs are able to extract from retail pharmacies. According to a new analysis from PricewaterhouseCoopers (PwC), mail-service pharmacy discounts are about 11 percentage points deeper than the discounts PBMs are able to negotiate on retail drugs. The PwC data also finds that legislative efforts to eliminate the mail-service pharmacy option â?? such as those being pushed by drug store lobby â?? would increase consumers’ and employers’ prescription drug costs over the next decade by 3.0 percent or about $97 billion dollars.
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The Pharmaceutical Care Management Association (PCMA) is the national trade association representing America’s pharmaceutical benefit managers (PBMs). PCMA member companies provide pharmaceutical care management services to more than 200 million Americans.
Contact Information:
Phil Blando
202-207-3614