Rick Graham
Analyst · Morgan Stanley
Thanks, Rhonda. Turning to Slide 11, picking up on YUPELRI. The Phase 4 PIFR-2 study comparing improvements in lung function in adults with severe to very severe COPD and suboptimal inspiratory flow rates following once-daily treatment with either revefenacin, delivered via a standard jet nebulizer or tiotropium delivered via dry powder inhaler is actively enrolling patients. Theravance is responsible for 35% of the cost of this study, and we continue to guide to top line results within the first quarter of 2023. As Rick mentioned, we aim to unlock the value of our pipeline assets through strategic partnerships. Today, I’m going to focus on the recently announced ampreloxetine Phase 3 study results, which demonstrated a clear benefit in study patients with multiple system atrophy and symptomatic neurogenic orthostatic hypotension. Moving to Slide 12. The ampreloxetine Phase 3 program included three studies, Study 0169, Study 0170 and the open-label extension Study 0171, and enrolled patients with Parkinson’s disease, multiple system atrophy or MSA and pure autonomic failure. In September of last year, we reported that the 0169 study did not meet its primary endpoint, and we took actions to reorganize the company and close out the ongoing clinical studies. Last month, we disclosed the results from Study 0170, and the complete data slide set can be found on our website. Today, I’d like to focus the conversation on the benefit that ampreloxetine treatment provided to MSA patients in the study. On Slide 13, you can see the study design. Study 0170 was a 22-week Phase 3 study comprised of a 16-week open-label period, followed by a 6-week double-blind, placebo-controlled randomized withdrawal period. Patients entered the open-label period of Study 0170 by either completing the four-week efficacy Study 0169 or by entering 0170 de novo. After receiving 10 milligrams of ampreloxetine once daily for 16 weeks, patients then entered the six-week randomized withdrawal period, where they either remained on ampreloxetine or were randomized to placebo. At the end of the randomized withdrawal period, 31% of the study population was MSA patients. On Slide 14, we present the prespecified subgroup analyses of patient-reported outcomes. On each of the four plots, the data points to the left of the vertical line favor ampreloxetine treatment and data points to the right favor placebo. The top left panel shows the results for the primary endpoint of treatment failure, which was defined as a worsening of both OHSA Item 1 and the patient global impression of severity. While there was a beneficial effect of ampreloxetine in the overall study population, this benefit was largely driven by MSA patients. The benefit to MSA patients was observed in multiple endpoints, including OHSA composite as shown on the top right panel, OHSA Item #1 on the bottom left panel, and the orthostatic hypertension daily activity scale or OHDAS, on the bottom right. Orthostatic hypotension questionnaire composite scores and the individual item scores from the patients with MSA are shown on Slide 15. Starting on the top half of the slide, you can see that the symptom composite score was nominally statistically significant with the upper bound of the 95% confidence interval to the left of zero. This effect on the OHSA composite was driven by all six items on the questionnaire favoring ampreloxetine. These include dizziness, vision, weakness, fatigue, trouble concentrating and head and neck discomfort. Moving to the bottom half of the slide, the daily activities composite score also favored ampreloxetine and in this case, all but one item on the questionnaire favored ampreloxetine treatment. The largest impact for the MSA patients was standing for a short time. For someone with MSA suffering with symptomatic nOH, even standing for a short time can be an enormous impact on quality of life. It can mean the difference of transferring from the bed to a wheelchair from the wheelchair to the restroom. The idea that slightly – the item that slightly favored placebo was walking for a long time, which isn’t surprising, considering that MSA is a disease with severely debilitating consequences. Finally, the last row of the table shows the OHQ composite score, which is the integrated results of OHSA and OHDAS. The OHQ composite score favored ampreloxetine treatment and this effect was also nominally statistically significant. The MSA subgroup represents a patient population with nOH for which no currently approved therapy has been shown to provide sustained efficacy in mitigating the debilitating symptoms related to nOH. The MSA data set in the current ampreloxetine program constitutes more than the third of the overall study population. And the subgroup is the largest number of MSA patients evaluated in the clinical program, investigating an interventional treatment for symptomatic nOH to date. There’s an urgency to treat MSA patients suffering with nOH due to the impact on quality of life and the extreme caregiver burden. Rare diseases and conditions pose a significant economic burden and the cost burden applies to direct medical as well as indirect and nonmedical costs. With the benefit that ampreloxetine provided to the MSA patients in the 0170 study, it’s important to consider why a similar result wasn’t observed in Study 0169, the four-week efficacy study. As shown on Slide 16, a longitudinal data analysis demonstrates that a treatment duration of more than four weeks with ampreloxetine is required for maximal effect. The y-axis on the plot is the OHSA composite score and a lower number here means that patients are feeling better. The x-axis is time by week in each period of the study. As shown on the left side of the figure, there was a minimal difference between ampreloxetine treatment in green and placebo in gray after four weeks in Study 0169. However, as patients moved into the open-label period of 0170, the OHSA composite continued to decrease reaching a nadir or a lowest level around week eight to 12. For patients that continued on ampreloxetine shown by the green line into the randomized withdrawal period, the effect was durable. Whereas, those patients withdrawn from ampreloxetine shown by the gray line worsened over the next six weeks. Again, the longitudinal data demonstrate that a treatment duration of more than four weeks with ampreloxetine is required for maximal effect. Given the clear unmet need for MSA patients suffering with symptomatic nOH, coupled with the benefit that ampreloxetine provided in Study 0170, we will define a path forward through ongoing discussions with regulators and strategic partners. I’ll now turn the call over to Andrew to review the financials.