Strongbridge Biopharma plc Announces Publication of Diabetes Subgroup Analysis from Phase 3 SONICS Study of RECORLEV® (levoketoconazole) for the Treatment of Endogenous Cushing’s Syndrome in Frontiers in Endocrinology
RECORLEV® (levoketoconazole) Treatment Demonstrates Clinically Meaningful Improvements in Cortisol Control and Clinical Benefit in Patients with Cushing’s Syndrome and Comorbid Diabetes Mellitus
“Diabetes mellitus is among the more common complications related to excess levels of cortisol in people with Cushing’s syndrome,” said
The manuscript, entitled “Levoketoconazole in the Treatment of Patients with Cushing’s Syndrome and Diabetes Mellitus: Phase 3 SONICS Results,” demonstrates that treatment with RECORLEV results in significant cortisol control in patients with Cushing’s syndrome and diabetes mellitus, as well as meaningful improvements in key glycemic measures, such as hemoglobin A1c (HbA1c) and fasting blood glucose (FBG), and cardiovascular risk markers such as low-density lipoprotein (LDL)-cholesterol. These results were observed following a dose titration phase and a six-month maintenance phase.
- Mean urinary-free cortisol (mUFC) normalization rate was similar in patients with and without diabetes at the end of the maintenance phase.
- Mean improvements in HbA1c and FBG in the maintenance phase were more meaningful among patients with comorbid diabetes mellitus than in those without. These improvements in glycemia markers were not due to changes in antidiabetic medication use, which were overall stable during treatment.
- Significant mean reductions from baseline, representing improvement in cardiovascular risk markers of LDL-cholesterol, weight, and body mass index were seen in patients with and without diabetes mellitus.
- Adverse events that were more common in patients with diabetes mellitus included nausea (58.3%), vomiting (19.4%), and urinary tract infection (16.7%); none prompted study drug withdrawal. As noted in the Phase 3 SONICS results published in The Lancet Diabetes & Endocrinology, nausea and headache were the most common adverse events in the overall study population. These events rarely affected treatment and did not appear to be dose related.
These results were previously presented in part at the 2019 Annual Meeting of the
About Cushing’s Syndrome
Endogenous Cushing’s syndrome, is a rare, serious and potentially lethal endocrine disease caused by chronic elevated cortisol exposure - often the result of a benign tumor of the pituitary gland. This benign tumor tells the body to overproduce high levels of cortisol for a sustained period of time, and this often results in undesirable physical changes. The disease is most common among adults between the ages of 30 to 50, and it affects women two times more often than men. Women with Cushing's syndrome may experience a variety of health issues including menstrual problems, difficulty becoming pregnant, excess male hormones (androgens), primarily testosterone which can cause hirsutism (growth of coarse body hair in a male pattern), oily skin, and acne. Additionally, the internal manifestations of the disease are potentially life threatening. These include metabolic changes such as high blood sugar, or diabetes, high blood pressure, high cholesterol, fragility of various tissues including blood vessels, skin, muscle and bone, and psychologic disturbances such as depression, anxiety and insomnia. Untreated, the five-year survival rate is only approximately 50 percent.
About the SONICS Study
SONICS is an open-label, Phase 3 study of RECORLEV as a treatment for endogenous Cushing’s syndrome that enrolled 94 patients at centers in North America, Europe and the Middle East. Following a screening phase, SONICS has three treatment phases:
(1) Dose Titration Phase: Patients started RECORLEV at 150 mg twice daily (300 mg total daily dose) and titrated in 150 mg increments with the goal of achieving a therapeutic dose – a dose resulting in mUFC normalization – at which point titration was stopped; (2) Maintenance Phase: The dose was fixed and should not have been changed other than for safety reasons or loss of efficacy. At the end of the six-month maintenance phase, the mUFC response rate was measured; and (3) Extended Evaluation Phase: Patients continued on RECORLEV for another six months to evaluate long-term safety and tolerability and explore efficacy durability.
RECORLEV® (levoketoconazole) is an investigational cortisol synthesis inhibitor in development for the treatment of patients with endogenous Cushing’s syndrome, a rare but serious and potentially lethal endocrine disease caused by chronic elevated cortisol exposure. RECORLEV is the pure 2S,4R enantiomer of ketoconazole, a steroidogenesis inhibitor. RECORLEV has demonstrated in two successful Phase 3 studies to significantly suppress serum cortisol and has the potential to be a next-generation cortisol inhibitor.
The Phase 3 program for RECORLEV includes SONICS and LOGICS: two multinational studies designed to evaluate the safety and efficacy of RECORLEV when used to treat endogenous Cushing’s syndrome. The SONICS study met its primary and secondary endpoints, demonstrating a statistically significant normalization rate of urinary free cortisol at six months. The LOGICS study, which met its primary endpoint, is a double-blind, placebo-controlled randomized-withdrawal study of RECORLEV that is designed to supplement the long-term efficacy and safety information supplied by SONICS. The ongoing long-term open label OPTICS study will gather further useful information related to the long-term use of RECORLEV.
RECORLEV has received orphan drug designation from the FDA and the European Medicines Agency for the treatment of endogenous Cushing's syndrome.
This press release contains forward-looking statements within the meaning of the federal securities laws. The words “anticipate,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “project,” “target,” “will,” “would,” or the negative of these terms or other similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. All statements, other than statements of historical facts, contained in this press release, are forward-looking statements, including statements related to the subgroup analysis data from the SONICS study, the potential advantages of RECORLEV, Strongbridge’s strategy, plans, outcomes of product development efforts and objectives of management for future operations. Forward-looking statements involve risks and uncertainties that could cause actual results to differ materially from those expressed in such statement, including risks and uncertainties associated with clinical development and the regulatory approval process, the reproducibility of any reported results showing the benefits of RECORLEV, the adoption of RECORLEV by physicians, if approved, as treatment for any disease and the emergence of unexpected adverse events following regulatory approval and use of the product by patients. Additional risks and uncertainties relating to Strongbridge and its business can be found under the heading “Risk Factors” in Strongbridge’s Annual Report on Form 10-K for the year ended December 31, 2020 and its subsequent Quarterly Reports on Form 10-Q, as well as its other filings with the SEC. These forward-looking statements are based on current expectations, estimates, forecasts and projections and are not guarantees of future performance or development and involve known and unknown risks, uncertainties and other factors. The forward-looking statements contained in this press release are made as of the date of this press release, and Strongbridge Biopharma does not assume any obligation to update any forward-looking statements except as required by applicable law.
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Source: Strongbridge Biopharma plc