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Ardelyx Receives FDA Approval for IBSRELA® (Tenapanor), an NHE3 Sodium Transport Inhibitor, for the Treatment of Irritable Bowel Syndrome with Constipation | ||
By: PR Newswire Association LLC. - 12 Sep 2019 | Back to overview list |
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FREMONT, Calif., Sept. 12, 2019 /PRNewswire/ -- Ardelyx, Inc. (NASDAQ: ARDX), a specialized biopharmaceutical company focused on developing innovative first-in-class medicines to improve treatment for people with cardiorenal diseases, today announced that the U.S. Food and Drug Administration has approved IBSRELA® (tenapanor), a 50 mg, twice daily oral pill for the treatment of irritable bowel syndrome with constipation (IBS-C) in adults. IBSRELA is a minimally-absorbed small molecule that acts locally in the gastrointestinal (GI) tract to inhibit the sodium-hydrogen exchanger NHE3, resulting in an increase in bowel movements and a decrease in abdominal pain for IBS-C patients. "IBSRELA has the potential to provide IBS-C patients and their doctors with a novel mechanism and an innovative approach to managing IBS-C, a highly burdensome and difficult-to-treat condition affecting more than 11 million people in the United States," commented Mike Raab, president and chief executive officer of Ardelyx. "This approval is an extremely important and rewarding milestone for Ardelyx, and represents the culmination of years of dedication to advancing our discoveries and medicines in an effective and rigorous manner. We look forward to establishing a commercial collaboration with a partner that has the capabilities to drive the successful launch and marketing of IBSRELA in this large and underserved IBS-C patient population." Mr. Raab continued, "With the approval of IBSRELA for IBS-C, along with the successful completion of our AMPLIFY trial in hyperphosphatemia, we've delivered on two major corporate milestones in the last two weeks due to flawless execution by the remarkable and talented team at Ardelyx. With these milestones accomplished, and the PHREEDOM trial reading out in Q4, I have great confidence that we are well positioned to file our NDA for hyperphosphatemia next year with potential approval and launch in 2021. We are excited about this next chapter for Ardelyx as we begin the development of our playbook for launch and commercialization of tenapanor for hyperphosphatemia in chronic kidney disease patients on dialysis and are excited to begin sharing more of our vision in the coming months." IBSRELA (tenapanor) Phase 3 IBS-C Program Phase 3 Study Designs Primary Endpoint Results In Trials 1 and 2, the proportion of responders for 9 out of the first 12 weeks, including at least 3 of the last 4 weeks, was greater in IBSRELA-treated patients compared to placebo-treated patients. In addition, in Trial 1, the proportion of responders for 13 out of 26 weeks was greater in IBSRELA?treated patients compared to placebo-treated patients. In both trials, improvements from baseline in average weekly CSBMs and abdominal pain were observed by Week 1, with improvement maintained through the end of treatment. In both studies, the most common adverse event was diarrhea (16% with IBSRELA vs 4% with placebo in Trial 1; and 15% with IBSRELA vs 2% with placebo in Trial 2), with severe diarrhea reported in 2.5% of IBSRELA-treated patients compared to 0.2% on placebo?treated patients during the 26 weeks of Trial 1 and the 12 weeks of Trial 2. Overall discontinuation rates were low among patients treated with IBSRELA (7.6%) and placebo (0.8%) and the most common adverse reaction leading to discontinuation was diarrhea (6.5% of IBSRELA-treated patients compared to 0.7% of placebo-treated patients). Indications and Usage IMPORTANT SAFETY INFORMATION WARNING: RISK OF SERIOUS DEHYDRATION IN PEDIATRIC PATIENTS Contraindications
Warnings and Precautions Risk of Serious Dehydration in Pediatric Patients IBSRELA is contraindicated in patients below 6 years of age. The safety and effectiveness of IBSRELA in patients less than 18 years of age have not been established. In young juvenile rats (less than 1 week old; approximate human age equivalent of less than 2 years of age), decreased body weight and deaths occurred, presumed to be due to dehydration, following oral administration of tenapanor. There are no data available in older juvenile rats (human age equivalent 2 years to less than 12 years). Avoid the use of IBSRELA in patients 6 years to less than 12 years of age. Although there are no data in older juvenile rats, given the deaths in younger rats and the lack of clinical safety and efficacy data in pediatric patients, avoid the use of IBSRELA in patients 6 years to less than 12 years of age Diarrhea Diarrhea was the most common adverse reaction in two randomized, double-blind, placebo-controlled trials of IBS-C. Severe diarrhea was reported in 2.5% of IBSRELA-treated patients. If severe diarrhea occurs, suspend dosing and rehydrate patient. Adverse Reactions In the two IBS-C trials, the most common adverse reaction in IBSRELA-treated patients (incidence ?2% and greater than in the placebo group) was diarrhea (Trial 1: 16% IBSRELA vs 4% placebo; Trial 2: 15% IBSRELA vs 2% placebo). Please also see the full Prescribing Information, including Box Warning, for additional risk information. About Irritable Bowel Syndrome with Constipation (IBS-C) About IBSRELA for IBS-C Tenapanor has also been shown to reduce abdominal pain by decreasing visceral hypersensitivity and by decreasing intestinal permeability in animal models. In rat model of colonic hypersensitivity, tenapanor reduced visceral hyperalgesia and normalized colonic sensory neuronal excitability. Conference Call Information About Ardelyx, Inc. Forward Looking Statements View original content to download multimedia:http://www.prnewswire.com/news-releases/ardelyx-receives-fda-approval-for-ibsrela-tenapanor-an-nhe3-sodium-transport-inhibitor-for-the-treatment-of-irritable-bowel-syndrome-with-constipation-300917407.html SOURCE Ardelyx |
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Copyright 2019 PR Newswire Association LLC. | Back to overview list |