“These results from cohort 2 are encouraging, with biomarker data that demonstrate increased activity of RGLS8429 at 2 mg/kg,” said Alan Yu, M.B., B.Chir, from the University of Kansas Medical Center. “Noting that several patients in this cohort who had the greatest reductions in kidney volume also had the greatest increases in PC1 and PC2 is certainly intriguing, and I look forward to seeing results from the higher doses planned in the study. As a physician managing patients with ADPKD, the continued development of a potential novel therapeutic is both important and welcome.”
“We are pleased with the data we have seen in the second cohort, in particular, the mechanistic dose response, as it continues to validate RGLS8429’s potential efficacy in ADPKD,” said Preston Klassen, M.D., President and Head of Research & Development of Regulus. “Based on these exciting results from cohort 2, we plan to increase the sample size of the cohort 4 fixed-dose open label enrollment up to 30 patients in order to further examine potential impact on cystic volume in patients with APDKD. The clear increases in polycystin levels we saw in the second cohort were encouraging, in particular their potential correlation with improvements in kidney volume and function. We look forward to seeing the topline data from the third cohort in the middle of this year.”
“These data represent another important step on our way to bringing a potential treatment to those living with ADPKD,” said Jay Hagan, CEO of Regulus. “RGLS8429 holds the potential to be able to address the underlying genetic causes of the disease, and we look forward to the data from our third and fourth cohorts to inform our potentially pivotal Phase 2 trial design. As always, I would like to thank the patients and investigators participating in our past and ongoing studies as well as our team who has worked so hard to bring us these data.”
In addition, the Company recently held a Type D meeting with FDA to discuss the accelerated approval pathway. The meeting was constructive and confirms the potential for an accelerated approval pathway based on a single Phase 2 study of RGLS8429 for the treatment of ADPKD.
As of December 31, 2023, the Company had cash and cash equivalents of approximately $23.8 million.
More information about the MAD clinical trial is available at clinicaltrials.gov (NCT05521191).
Conference Call Information The Company will host a conference call and live audio webcast on March 12, 2024, at 8:30 am Eastern Time. To access the call, please dial (833) 816-1394 (domestic) or (855) 669-9657 (international). The live webcast can be found under “Events and Presentations” through the investor relations section of the Company’s website. To access the telephone replay of the call, dial (877) 344-7529 (domestic) or (412) 317-0088 (international), passcode ID 6852735. The webcast and telephone replay will be archived on the Company’s website at www.regulusrx.com following the call.
About ADPKD
Autosomal Dominant Polycystic Kidney Disease (ADPKD), caused by mutations in the PKD1 or PKD2 genes, is among the most common human monogenic disorders and a leading cause of end-stage renal disease. The disease is characterized by the development of multiple fluid filled cysts primarily in the kidneys, and to a lesser extent in the liver and other organs. Excessive kidney cyst cell proliferation, a central pathological feature, ultimately leads to end-stage renal disease in approximately 50% of ADPKD patients by age 60. Approximately 160,000 individuals are diagnosed with the disease in the United States alone, with an estimated global prevalence of 4 to 7 million.
