Bruce Cozadd
Analyst · Piper Jaffray
Thanks, everyone. The first quarter was a dynamic time at Jazz Pharmaceuticals. We achieved a record total revenues of $108 million, fueled by the continued strong growth of Xyrem and the addition of new products in our portfolio from our merger with Azur. During the quarter, we completed the initial phase of integration of the Azur business, including the reorganization of our combined sales and marketing teams into 4 different product lines focused on narcolepsy, pain, psychiatry and women's health. We're pleased with the momentum of these new highly focused teams and continue to believe that increased specialization and focus will lead to better results. I'd like to thank our employees for their dedication during the merger process as many embraced new responsibilities while maintaining our commitment to patients and to our company's values.
Now I'll make some comments about results and strategies for Xyrem and Prialt, as these are the current products we see as long-term growth drivers of our business. And then Kate will provide more details and summarize our updated financial guidance.
Starting with Xyrem, as previously announced, we achieved 10% volume growth during the first quarter of 2012 over the prior year's first quarter. And the number of patients on active therapy reached a new high of over 9,500 during the quarter. This reflects focused efforts to maintain new patient growth and the results of ongoing programs to support both compliance and persistency. We continue to work with our exclusive Central Pharmacy to optimize its interactions with both patients and physicians, and we continue to roll out new programs to support the Xyrem brand.
Most recently, effective March 1, we identified and rolled out to our sales force another wave of additional target physicians who treat narcolepsy patients, further increasing our target audience. Since we began this initiative to identify additional narcolepsy prescribers last year, we've increased our call audience by approximately 25%, or about 1,000 new physicians, over 100 of whom have since enrolled in the Xyrem Success Program. These additional potential prescribers have resulted in meaningful increases in new patients on Xyrem therapy with at least 50 new patients directly linked to this effort.
We have also recently implemented a new patient support program called the Xyrem Patient Connection Program. This program provides new patients with the option to speak with someone who also has a diagnosis of narcolepsy and has personal experience with Xyrem therapy, yet another example of our commitment to the narcolepsy community. We are also increasing our work with the scientific and medical community related to narcolepsy and its impact on patients. We are increasing our investments in support of Xyrem across the company as we expand our support of medical education initiatives and increase our corporate commitment to serving patients with narcolepsy.We are hiring additional medical scientists, funding additional speaker programs and symposia with KOLs, pursuing additional publications and funding narcolepsy patient support groups and the charitable organization that supports narcolepsy patients. We will have our largest presence to date at the upcoming APSS SLEEP Meeting in Boston this June, where in addition to our commercial and medical affairs activities we are sponsoring a physician education symposium on narcolepsy.
Now turning to Prialt, our product for severe chronic pain. We continue to focus on growing the existing business while we develop a broader strategy to maximize the longer-term opportunity for the product. Prialt sales volumes in the U.S. were up 8% year-over-year in the first quarter, which was in line with our expectation. Given that Prialt is the only non-opioid approved for intrathecal administration, its strong efficacy profile and the current very low penetration in the available pump market, we see significant potential to grow this product over time. We think that the optimal strategy for this product may include both changes with the existing, highly-fragmented distribution system and possibly generating new data. We have concluded that a more focused specialty pharmacy model may have advantages for patients and physicians, and we are in the process of planning for a possible change late this year.
Under Jeff Tobias' leadership, we are also evaluating whether additional clinical data might be useful for physicians and obtainable with costs that makes sense. We expect to have more to say about our Prialt strategy later this year.
And finally, we are pleased to have signed the agreement late last month to acquire EUSA Pharma, which we expect to contribute further to our top and bottom line growth going forward. The EUSA Pharma business would add a significant growth product, Erwinaze, to our portfolio and bring some interesting research and development opportunities into our company. The transaction meets our corporate development objectives and aligns with our commercial strength in delivering highly specialized products that require an expertise with targeted physician customers and a strong patient service capability. The transaction would leverage our existing commercial expertise and corporate structure and will be expected to generate a highly positive return for our shareholders with immediate accretion to our adjusted EPS.
We've begun working with EUSA's management team to ensure a smooth transition and continue to expect to close the transaction in June. Now let me turn the call over to Kate.