Drugs / Tenapanor

Regulatory milestones approvals, filings & regulatory actions · 6 recorded

MilestoneJurisdictionBrandIndicationDateSentence it was read from
Filed hyperphosphatemia 4 milestones
Filed Japan (PMDA) — hyperphosphatemia 2022-10-31

“has submitted a New Drug Application (NDA) to the Japanese Ministry of Health, Labour and Welfare (MHLW) for tenapanor” ardelyx.com ↗

Filed US (FDA) — hyperphosphatemia 2020-06-30

“Submitted a New Drug Application (NDA) for tenapanor for the control of serum phosphorus in adult patients with chronic kidney disease (CKD) on dialysis” ardelyx.com ↗

“submission of a New Drug Application (NDA) for tenapanor to the U.S. Food and Drug Administration (FDA)” ardelyx.com ↗

Rejected (CRL) US (FDA) XPHOZAH hyperphosphatemia —

“provided an update regarding the appeal to the Complete Response Letter for the New Drug Application for XPHOZAH (tenapanor).” ardelyx.com ↗

Filed China (NMPA) — hyperphosphatemia —

“A New Drug Application for tenapanor for hyperphosphatemia has been submitted in China with Fosun Pharma.” ardelyx.com ↗

“A New Drug Application for tenapanor for hyperphosphatemia has been submitted in China with Fosun Pharma.” ardelyx.com ↗

Filed irritable bowel syndrome 1 milestone
Filed US (FDA) — irritable bowel syndrome 2018-09-13

“Ardelyx recently submitted a New Drug Application for marketing authorization of tenapanor for the treatment of people with IBS-C” ardelyx.com ↗

“New Drug Application for U.S. Marketing Authorization of Tenapanor for IBS-C Submitted to U.S. Food and Drug Administration” ardelyx.com ↗

Approved Indication not stated 1 milestone
Approved US (FDA) IBSRELA — 2019-09-12 fda.gov ↗

Trials 35

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 110 trials
Phase 1 NCT06203444 Nov 2023 → May 2024 lactation disease Ardelyx Completed No outcome recorded
Phase 1 NCT02140281 May → Aug 2014 — Ardelyx Completed No outcome recorded
Phase 1 NCT02140268 May → Aug 2014 — Ardelyx Completed No outcome recorded
Phase 1 NCT02063386 Apr → May 2014 — Ardelyx Completed No outcome recorded
Phase 1 NCT02176252 Jul → Dec 2013 — Ardelyx Completed No outcome recorded
Phase 1 NCT02346890 Apr 2013 — Ardelyx Completed No outcome recorded
Phase 1 NCT02226783 Mar → Oct 2013 — Ardelyx Completed No outcome recorded
Phase 1 NCT02249936 Feb 2013 — Ardelyx Completed No outcome recorded
Phase 1 NCT02796131 Jul → Oct 2011 — Ardelyx Completed No outcome recorded
Phase 1 NCT02819687 Nov 2010 → Mar 2011 — Ardelyx Completed No outcome recorded
Phase 28 trials · 1 met primary · 1 missed
Phase 2 NCT06460038 Jan 2025 → Dec 2026 expected Parkinson disease, synucleinopathy Cedar Valley Digestive Health Center Recruiting No outcome recorded
Phase 2 NCT06553547 Jul 2024 → Jul 2026 overdue irritable bowel syndrome Ardelyx Active not recruiting No outcome recorded
Phase 2 NCT03864445 Apr → Dec 2019 hyperphosphatemia Kyowa Kirin, Inc. Completed No outcome recorded
Phase 2 NCT03864458 Apr → Dec 2019 hyperphosphatemia Kyowa Kirin, Inc. Completed No outcome recorded
Phase 2 NCT03831607 Dec 2018 → Nov 2019 hyperphosphatemia Kyowa Kirin, Inc. Completed No outcome recorded
Phase 2 NCT02081534 Mar → Nov 2014 hyperphosphatemia Ardelyx Completed Met primary
Phase 2 NCT01764854 Jan → Oct 2013 end stage renal failure Ardelyx Completed Missed primary
Phase 2 NCT01340053 May → Dec 2011 irritable bowel syndrome Ardelyx Completed No outcome recorded
Phase 2/32 trials · 2 met primary
Phase 2/3 NCT03824587 Feb → Jul 2019 hyperphosphatemia Ardelyx Completed Met primary
Phase 2/3 NCT01923428 Aug 2013 → Oct 2014 irritable bowel syndrome Ardelyx Completed Met primary
Phase 311 trials · 4 met primary
Phase 3 NCT07382167 Jan 2026 → Feb 2027 expected constipation disorder Ardelyx Recruiting No outcome recorded
Phase 3 NCT06810167 Jun 2025 → Jun 2026 overdue constipation disorder, cystic fibrosis Massachusetts General Hospital Recruiting No outcome recorded
Phase 3 NCT05905926 Feb 2023 → Jul 2031 expected irritable bowel syndrome Ardelyx Enrolling by invitation No outcome recorded
Phase 3 NCT05643534 Nov 2022 → Aug 2026 irritable bowel syndrome Ardelyx Completed No outcome recorded
Phase 3 NCT04771780 Mar 2021 → Jun 2022 hyperphosphatemia Kyowa Kirin, Inc. Completed No outcome recorded
Phase 3 NCT04766385 Mar → Dec 2021 hyperphosphatemia Kyowa Kirin, Inc. Completed No outcome recorded
Phase 3 NCT03427125 Jan 2018 → Nov 2019 hyperphosphatemia Ardelyx Completed Met primary
Phase 3 NCT02727751 Mar 2016 → Oct 2017 irritable bowel syndrome Ardelyx Completed No outcome recorded
Phase 3 NCT02675998 Jan → Dec 2016 hyperphosphatemia Ardelyx Completed Met primary
Phase 3 NCT02686138 Dec 2015 → Aug 2017 irritable bowel syndrome Ardelyx Completed Met primary
Phase 44 trials · 1 missed
Phase 4 NCT06481150 Jul 2024 → Sep 2025 — University of Texas Southwestern Medical Center Completed No outcome recorded
Phase 4 NCT05995899 Feb 2024 → Dec 2025 irritable bowel syndrome Kyle Staller, MD, MPH Completed No outcome recorded
Phase 4 NCT04549597 Nov 2020 → Oct 2021 chronic kidney disease, hyperphosphatemia Ardelyx Completed No outcome recorded
Phase 4 NCT03988920 Jun 2019 → Jun 2021 end stage renal failure, hyperphosphatemia Ardelyx Completed Missed primary
Comparator or background therapy3 trials
Phase 2 NCT01847092 Comparator May 2013 → Mar 2015 chronic kidney disease, type 2 diabetes mellitus Ardelyx Completed No outcome recorded
Phase 3 NCT04766398 Comparator Mar → Sep 2021 hyperphosphatemia Kyowa Kirin, Inc. Completed No outcome recorded
Phase 3 NCT04767581 Comparator Mar → Aug 2021 hyperphosphatemia Kyowa Kirin, Inc. Completed No outcome recorded

News releases announcing trial results or a regulatory action · 67

DateIssuerRelease
2026-04-27 Ardelyx Results Ardelyx Announces Abstract Accepted for Poster Presentation at the NKF’s Spring Clinical Meetings ardelyx.com ↗
Tenapanor Decreases Serum Phosphate Without Altering Other Serum Electrolytes in Patients with Chronic Kidney Disease with Hyperphosphatemia on Dialysis
2026-03-09 Ardelyx Results Ardelyx Announces Publication of a Review Article Demonstrating Rapid and Meaningful Symptom Relief with Tenapanor in IBS-C ardelyx.com ↗
Patients taking tenapanor reported improvements in bowel movement frequency as early as two weeks, and meaningful relief from abdominal symptoms including pain, discomfort, and bloating within 4–5 weeks.
2025-11-07 Ardelyx Results Real-World Evidence Studies of XPHOZAH® (tenapanor) Demonstrate Patient Satisfaction and Reduction in Serum Phosphate with XPHOZAH in Data Presented at ASN Kidney Week ardelyx.com ↗
Our results show the impact XPHOZAH can have in reducing serum phosphorus levels for these patients, and that its’ effectiveness extends outside the clinical trial setting and into the real-world.
2025-10-28 Ardelyx Results Ardelyx Presents Data that Continues to Support the Benefits of IBSRELA® (tenapanor) at the American College of Gastroenterology’s 2025 Annual Meeting ardelyx.com ↗
Post-hoc analysis of T3MPO-1 and T3MPO-2 studies demonstrates effectiveness of IBSRELA in reducing abdominal bloating for patients with IBS-C
2025-04-24 Ardelyx Results Ardelyx Announces Three Abstracts Accepted for Poster Presentations at Digestive Disease Week 2025 Conference ardelyx.com ↗
Neither Tenapanor nor its Major Metabolite Were Detected in the Breast Milk of Healthy Lactating Females After 4 Days of Dosing: A Phase 1, Open-Label, Pharmacokinetic Study
2025-02-26 Ardelyx Regulatory Tenapanor Approved in China for Hyperphosphatemia ardelyx.com ↗
2024-10-24 Ardelyx Results Ardelyx Shares Additional Data Supporting First-In-Class XPHOZAH® (tenapanor) at the American Society of Nephrology’s Kidney Week ardelyx.com ↗
today announced that data supporting additional positive clinical observations of XPHOZAH ® (tenapanor) was presented in a series of poster presentations at the American Society of Nephrology’s (ASN) Kidney Week, currently taking place in San Diego .
2024-05-21 Ardelyx Results Ardelyx Presents Additional Data at the 2024 Digestive Disease Week Conference on IBSRELA® (tenapanor), a First-In-Class Treatment for IBS-C in Adults ardelyx.com ↗
today announced that data supporting additional positive clinical observations of IBSRELA ® (tenapanor) was presented at the 2024 Digestive Disease Week Conference (DDW), currently taking place in Washington, D.C.
2024-05-16 Ardelyx Results Ardelyx Presents Additional Data at the NKF 2024 Spring Clinical Meetings on XPHOZAH® (tenapanor) ardelyx.com ↗
2023-11-15 Ardelyx Regulatory XPHOZAH® (tenapanor) Granted Orphan Drug Designation by U.S. FDA for the Treatment of Pediatric Hyperphosphatemia ardelyx.com ↗
Ardelyx, Inc. (Nasdaq: ARDX), a biopharmaceutical company founded with a mission to discover, develop and commercialize innovative, first-in-class medicines that meet significant unmet medical needs, today announced that the U.S. Food and Drug Administration (FDA) has granted Orphan Drug Designation to XPHOZAH ® (tenapanor) for the treatment of pediatric hyperphosphatemia.
2023-11-03 Ardelyx Results Ardelyx Shares Positive Data from Studies of XPHOZAH® (tenapanor), a First-in-Class Phosphate Absorption Inhibitor, at ASN Kidney Week 2023 ardelyx.com ↗
The study showed that a lower proportion of patients treated with tenapanor versus sevelamer experienced a serious adverse event (SAE)
2023-10-23 Ardelyx Results Ardelyx Shares Positive Data on Symptom Response During Treatment With IBSRELA® (tenapanor) for IBS-C and hosts IBS-C Product Theater at ACG 2023 ardelyx.com ↗
Ardelyx, Inc. (Nasdaq: ARDX), a biopharmaceutical company founded with a mission to discover, develop and commercialize innovative, first-in-class medicines that meet significant unmet medical needs, announced that they will share positive data on IBSRELA ® (tenapanor) via an oral presentation and two posters at the American College of Gastroenterology (ACG) annual meeting, being held October 20 to 25 in Vancouver, Canada .

All press releases naming this drug 112 releases

DateIssuerRelease
Show all 112 releases opens the full record — a long page

Evidence & citations 15 cited values

Every value below carries the sentence it was read from. 41 sources stand behind the page.

FieldValueCited text
Known as Tenapanor ClinicalTrials.gov intervention name — accepted as the source's own label NCT02727751 ↗
16

NCT06203444 ↗

NCT03427125 ↗

NCT02621892 ↗

NCT02686138 ↗

NCT03824587 ↗

NCT07382167 ↗

NCT05995899 ↗

NCT05905926 ↗

NCT06553547 ↗

NCT06481150 ↗

Show 6 more sources

Known as AZD-1722 HYDROCHLORIDE ChEMBL registry synonym — accepted as the source's own label CHEMBL3304485 ↗
Known as AZD1722 ClinicalTrials.gov intervention name — accepted as the source's own label NCT02249936 ↗
10

NCT01764854 ↗

NCT02346890 ↗

NCT02063386 ↗

NCT01847092 ↗

NCT02081534 ↗

NCT02140268 ↗

NCT01923428 ↗

NCT02176252 ↗

NCT02140281 ↗

NCT02226783 ↗

Known as Ibsrela ChEMBL registry synonym — accepted as the source's own label CHEMBL3304485 ↗
Known as KHK7791 ClinicalTrials.gov intervention name — accepted as the source's own label NCT03864445 ↗
6

NCT04766398 ↗

NCT04766385 ↗

NCT04771780 ↗

NCT03864458 ↗

NCT04767581 ↗

NCT03831607 ↗

Known as RDX5791 ClinicalTrials.gov intervention name — accepted as the source's own label NCT02796131 ↗
2

NCT01340053 ↗

NCT02819687 ↗

Known as TENAPANOR COMPONENT OF RDX-013 ChEMBL registry synonym — accepted as the source's own label CHEMBL3304485 ↗
Known as Tenapanor dihydrochloride ChEMBL registry synonym — accepted as the source's own label CHEMBL3304485 ↗
Known as TENAPANOR FREE BASE ChEMBL registry synonym — accepted as the source's own label CHEMBL3304485 ↗
Known as TENAPANOR HYDROCHLORIDE ChEMBL registry synonym — accepted as the source's own label CHEMBL3304485 ↗
Known as Xphozah ChEMBL registry synonym — accepted as the source's own label CHEMBL3304485 ↗
Action Inhibit “Tenapanor (RDX5791, AZD1722), a small molecule with minimal systemic availability, is an inhibitor of the sodium/hydrogen exchanger isoform 3 (NHE3).” PMID 27368672 ↗ Jul 2016
Modality Small molecule “Tenapanor (RDX5791, AZD1722), a small molecule with minimal systemic availability, is an inhibitor of the sodium/hydrogen exchanger isoform 3 (NHE3).” PMID 27368672 ↗ Jul 2016
Route Oral “Starting dose is 15 mg BID PO for 12 Weeks” NCT01847092 ↗
Target SLC9A3 “sodium/hydrogen exchanger isoform 3” PMID 38323855 ↗ Feb 2024