David Johnson
Analyst · Cowen. Please proceed with your question
Thank you, Jeff, and good afternoon, everyone. As I've done in the past, I will provide an update on three key metrics that will give you further insight into our progress. These metrics are: new prescriptions for Oxbryta, which informs underlying patient demand; the number of healthcare providers prescribing Oxbryta, which captures the progress we are making on adoption; and payer coverage, which speaks to the access environment for Oxbryta. First, new prescriptions. We delivered more than 1,200 new prescriptions during the quarter, our strongest demand quarter since Q1 of 2020. This was driven by the pediatric launch and incremental growth from the 12 and older group. Starting with the pediatric launch, we got off to a strong start in the quarter. We were able to leverage two years of Oxbryta education and awareness building from our original approval to quickly engage with healthcare providers on the pediatric label expansion and to train them on administering the new formulation in early January. Our team did an excellent job building excitement, particularly among pediatric hematologists and caregivers, and early feedback from this engagement has been overwhelmingly positive. This is reflected in the high number of new prescriptions in the quarter. Somewhat expected, the uptake in the pediatric population was strongest in the early part of the quarter when many physicians and patients have been eagerly awaiting the opportunity to start Oxbryta therapy. As a result, many existing prescribers had some of their younger patients ready to initiate therapy shortly after approval. In terms of COVID-19, we did see some impact from Omicron in January, reflecting continued caution by SCD patients and caregivers. However, demand and field team access dynamics did improve in February as infections declined. Similarly, our market research shows that comfort levels for in-person care bounced back quickly in February with most patients and caregivers preferring in-person visits for routine care. And in February, HCPs we surveyed indicated that the majority of their SCD appointments were conducted in-person. This is a good leading indicator that things are likely to start trending back to more normal health care engagement this year. Feedback from our field teams supported what we heard from our market research. Anecdotally, our team saw patient volumes increase in February and March, with ongoing headwinds for COVID causing some adult patients to be cautious due to the increased risk to their health. On the provider side, we continue to see office turnover and staff shortages. And when we look at the claims data in Q1, SCD patient visits to HCP offices remain below pre-pandemic levels. We believe the net effect of all these trends contributed to the sequential growth in new prescriptions for the 12 and older age group, along with the momentum from our DTC and real-world evidence that was presented at ASH last year and recently published in expert review of hematology. We also believe the 12 and older segment benefited from HCP engagement around the pediatric launch, given that the majority of our targets treat a range of age groups. We also continue to see a broad range of patient characteristics for those prescribed Oxbryta, such as baseline hemoglobin and VOC burden suggesting that the prescribers are increasingly recognize the importance of addressing polymerization and long-term health. The COVID environment has remained relatively stable from mid Q1 through April, though we are closely watching the recent uptick in cases. Assuming COVID impact does not escalate, we anticipate that new prescriptions in the second quarter will be roughly flat compared to the first quarter. This reflects slightly lower pediatric new prescriptions following the strong start with patients that have been waiting for Oxbryta, offset by continued incremental improvement in the 12 and older group. Looking ahead to the second half of the year. If the environment continues to improve, we believe we have the potential to accelerate growth driven by our ongoing DTC campaign, new real-world data that we continue to publish and the pediatric launch. The key leading indicators that we see as predictive of a return to sustained quarter-over-quarter growth are improvements in the industry-wide new-to-brand prescriptions and our patients' health care visits returning to pre-pandemic levels. While we are hopeful this will occur, we know SCD patients remain cautious. For example, all the SCD focused community-based organization meetings planned for the second half of the year are taking place virtually. As we prepare for more SCD patients to potentially return to face to face interactions with their health care providers, we are working to raise overall Oxbryta awareness through our ongoing DTC campaign. The metrics from the campaign around targeted audience reach continue to exceed our original goals. In the first quarter, this was aided by several new tactics, including updating the campaign to reflect the pediatric approval and an improved ability to target SCD patients, which we believe contributed to a higher frequency of monthly engagement. In addition, we launched our branded and unbranded content on new channels, including YouTube, Pandora and podcasts. Visits to oxbryta.com and SickleCellSpeaks.com, reached an all-time high in the first quarter. We also are seeing encouraging growth in the number of SCD patients visiting their HCPs within one month of seeing our DTC advertisement. As we think about recent trends, the conversion rate for new prescriptions was consistent with prior quarters. Similarly, Oxbryta adherence, which includes compliance and persistence for patients in the first year of therapy, continued to be within the range of our prior quarter’s and analogs. As we gain more data on adherence for year two and beyond, we are seeing lower adherence compared to year one as would be expected for any chronic medication. But we are encouraged that some patients in year one and beyond have restarted Oxbryta, and that Oxbryta adherence continues to trend better than SCD analogs. In addition, we continue to proactively roll out new tactics aimed at improving overall adherence, including long-term adherence. This includes additional services through our, a patient hub GBT Source Solutions, which continues to be an important driver of patient engagement and adherence. For example, early feedback on the email newsletters and mobile messaging that we launched around the end of 2021 has been encouraging. These services are also available to patients via our specialty pharmacies. And the data shows that patients engage with GBT Source or the similar services offered by these partners, have better adherence rates than those that do not. So we plan to continue investing and driving utilization of these programs. Next, my second metric, healthcare provider penetration. During the quarter, total interactions with healthcare providers increased significantly compared to the fourth quarter, which was lower due to the holidays and lingering impact of the Delta variant. And despite the impact of the Omicron variant in January, in-person visits continued to improve as they have for several quarters, reaching around 50% of our salesforce interactions with HCPs during the quarter. Against this backdrop, we added about 120 new prescribers in the quarter. This includes several prescribers from the 200 new targets we added for the pediatric launch. This group focuses almost entirely on patients that are 11 and younger. Encouragingly with the momentum from the pediatric launch on new prescribers and reengaging prior writers March was our highest month for the number of active prescribers in the last 12 months. When we look at the breakdown of writers, we continue to see prescriptions being written by both specialists and non-specialists, which we believe is a positive trend for the long-term trajectory for the long-term trajectory of the launch. Turning the payor coverage. We continue to have broad payor coverage for the 12 and older patient population with more than 90% of coverage lives, having access in the United States. And our focus is on making it easier for physicians to prescribe and patients to receive Oxbryta. In terms of coverage for the four to eleven age group, we made substantial progress and we are well on our way to achieving our goal of broad coverage by mid-2022, faster than we did with the adolescent and adult population. Before turning the call over to Kim, I also want to provide a brief update on our commercial activities in Europe. We are gaining experience with more than 100 patients participating in our early access programs across Germany, France, and the UK. And following our European Commission approval in February, we are working to launch Oxbryta in Germany in mid-May. We will have open pricing in Germany for the first year while we negotiate future reimbursement. There are around 3000 sickle cell patients in Germany, and we anticipate adoption will be gradual leading to minimal revenues for Europe in 2022. Separately, our team has also begun reimbursement negotiations in France and England. We have begun educating physicians in Europe, on Oxbryta, including plans for our robust presence at the European Hematology Association or EHA meeting in June. At EHA we plan to promote Oxbryta for the first time in Europe, engage with physicians, including our branded [indiscernible] and sponsor an educational program. We also recently held a successful internal launch meeting in Europe, where it was clear that our employees are excited about bringing Oxbryta to patients and to helping GBT achieve our mission around the world. And with that, Kim will now talk about the developments in our pipeline.