PHARMACY

Drug Channels: Express Scripts, CVS Caremark and Walgreens top players in specialty pharmacy

BY Michael Johnsen

PHILADELPHIA — Drug Channels on Tuesday sized up the specialty pharmacy market. Last year specialty drugs accounted for 22% of all pharmacy revenue, and 63% of the specialty business is dispensed by three companies: Express Scripts, CVS Caremark and Walgreens. According to Drug Channels estimates, the specialty pharmacy market generated $63.2 billion in 2013. 

"Walgreens has become the third-largest specialty pharmacy by acquiring other specialty pharmacies," noted Drug Channels author Adam Fein, president Pembroke Consulting, notably BioScrip, Medmark and Schraft’s, among others. 

"[And] Diplomat continues to be one of the fastest-growing companies in the specialty market," Fein observed. "Diplomat has also expanded its reach with its Retail Specialty Network program for such retailers as Fred’s, Safeway and Target."

 

 

 

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PHARMACY

More than 30 health organizations urge adoption of ADAPT Act to speed approval of antibiotics

BY Michael Johnsen

WASHINGTON — Last week, more than 30 organizations  — including the American Medical Association, Infectious Diseases Society of America and Pew Charitable Trusts — urged Congressional leaders to strengthen the labeling requirements for drugs approved under the proposed Antibiotic Development to Advance Patient Treatment Act of 2013 (ADAPT Act) limited population approval pathway, which will streamline regulatory approval for antibiotics. 

On December 12, a group of bipartisan lawmakers led by Reps. Phil Gingrey, R-Ga., and Gene Green, D-Texas, introduced H.R. 374. If enacted, the ADAPT Act would amend the law to create a pathway for the prompt approval of antibacterial drugs.  

"The ADAPT Act will build on the success of the Generating Antibiotic Incentives Now Act by allowing antibacterial drugs to treat serious or life-threatening infections to be approved based upon smaller clinical trials," medical organization coalition wrote in a letter to Reps. Gingrey and Green. "It is often not feasible for these drugs to be developed using traditional, large clinical trials due to the limited numbers of patients in whom these infections currently occur."

The organizations recommended the drugs include a prominently placed visual element, such as a logo, on their label to clearly indicate to the healthcare community that they are approved for a limited population and must be used prudently.

 

 

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Study pinpoints protective genetic mutations for Type 2 diabetes

BY Michael Johnsen

CAMBRIDGE, Mass. — An international team led by researchers at the Broad Institute and Massachusetts General Hospital has identified mutations in a gene that can reduce the risk of developing Type 2 diabetes, even in people who have such risk factors as obesity and old age, the group announced Sunday. The results focus the search for developing novel therapeutic strategies for Type 2 diabetes — if a drug can be developed that mimics the protective effect of these mutations, it could open up new ways of preventing this devastating disease.

The current study breaks new ground in Type 2 diabetes research and guides future therapeutic development in this disease. In the new study, researchers describe the genetic analysis of 150,000 patients showing that rare mutations in a gene called SLC30A8 reduce risk of Type 2 diabetes by 65%. The results were seen in patients from multiple ethnic groups, suggesting that a drug that mimics the effect of these mutations might have broad utility around the globe. The protein encoded by SLC30A8 had previously been shown to play an important role in the insulin-secreting beta cells of the pancreas, and a common variant in that gene was known to slightly influence the risk of Type 2 diabetes. However, it was previously unclear whether inhibiting or activating the protein would be the best strategy for reducing disease risk — and how large an effect could be expected.

"This work underscores that human genetics is not just a tool for understanding biology: it can also powerfully inform drug discovery by addressing one of the most challenging and important questions — knowing which targets to go after," said co-senior author David Altshuler, deputy director and chief academic officer at the Broad Institute and a Harvard Medical School professor at Massachusetts General Hospital.

The new Type 2 diabetes study, which appears this week in Nature Genetics, suggests that CCR5 and PCSK9 are likely just the beginning, but that it will take large numbers of samples and careful sleuthing to find additional genes with similar protective properties.

The Nature Genetics study grew out of a research partnership that started in 2009 involving the Broad Institute, Massachusetts General Hospital, Pfizer and Lund University Diabetes Centre in Sweden, which set out to find mutations that reduce a person’s risk of Type 2 diabetes. The research team selected people with severe risk factors for diabetes, such as advanced age and obesity, who never developed the disease and in fact had normal blood sugar levels. They focused on a set of genes previously identified as playing a role in Type 2 diabetes and used next-generation sequencing to search for rare mutations.

The team identified a genetic mutation that appeared to abolish function of the SLC30A8 gene and that was enriched in non-diabetic individuals studied in Sweden and Finland. The protection was surprising, because studies in mice had suggested that mutations in SLC30A8 might have the opposite effect — increasing rather than decreasing risk of Type 2 diabetes. However, because this particular genetic variation was exceedingly rare outside of Finland, it proved difficult to obtain additional evidence to corroborate the initial discovery by the Broad/MGH/Pfizer/Lund team.

Then, in 2012, these unpublished results were shared with deCODE genetics, who uncovered a second mutation in an Icelandic population that also appeared to abolish function of the gene SLC30A8. That mutation independently reduced risk for Type 2 diabetes and also lowered blood sugar in non-diabetics without any evident negative consequences.

Finally, the team set out to ask if the effects of SLC30A8 protective mutations were limited to the two mutations found in populations in Finland and Iceland. As part of the NIH-funded T2D-GENES Project, chaired by Mike Boehnke at the University of Michigan, the Broad Institute had performed sequencing of 13,000 samples drawn from multiple ethnicities. The T2D-GENES Project joined the collaboration, found 10 more mutations in the same gene, and again saw a protective effect. Combining all the results confirmed that inheriting one copy of a defective version of SLC30A8 led to a 65% reduction in risk of diabetes.

"Through this partnership, we have been able to identify genetic mutations related to loss of gene function, which are protective against Type 2 diabetes," said Tim Rolph, VP and chief scientific officer of cardiovascular, metabolic and endocrine disease research at Pfizer. "Such genetic associations provide important new insights into the pathogenesis of diabetes, potentially leading to the discovery of drug targets, which may result in a novel medicine."

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