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NCT03988920 · ClinicalTrials.gov registry record · Phase 4

A Long-Term Study of Tenapanor Alone or in Combination With Sevelamer in Patients With CKD on Dialysis and HP

A Phase 4 study of End Stage Renal Disease and Hyperphosphatemia, sponsored by Ardelyx.

Completed
Registry status
Phase 4
Development phase
172
Enrollment target
1
Study location

NCT03988920: Completed Phase 4 study of End Stage Renal Disease and Hyperphosphatemia, sponsored by Ardelyx.

NCT03988920 is a Phase 4 study of End Stage Renal Disease and Hyperphosphatemia that has completed, run by Ardelyx. The registered enrollment target is 172 participants, below the 831-participant average among 86 other End Stage Renal Disease trials with a reported enrollment target (79% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT03988920, a Phase 4 study of End Stage Renal Disease and Hyperphosphatemia, has completed, sponsored by Ardelyx.

COMPLETED
Registry status
Phase 4
Development phase
172 participants
Enrollment target
1
Study location

Study Summary

The study is designed to evaluate the ability of tenapanor alone or in combination with sevelamer to achieve serum phosphorus concentration (sP) within the population reference range (sP \>2.5 and ≤4.5 mg/dL) in patients with end-stage renal disease (ESRD) on dialysis with hyperphosphatemia (\>4.5 mg/dL).

Primary Outcome

Proportion of patients with serum phosphorus between 2.5 and 4.5 mg/dL

Interventions

  • DRUG Tenapanor
  • DRUG Sevelamer Carbonate

Study Locations (1)

California

  • Ardelyx Site #509 - Houston

Trial Details

FieldValue
Enrollment Target 172 participants
Start Date 2019-06-15
Est. Completion 2021-07-31
Phase Phase 4
Ardelyx

25 total trials

What the finished NCT03988920 record still lists

NCT03988920 is an interventional study that assigns participants to a tested intervention. The registered 172 participants enrollment target is mid-sized for trials with a published cap, below the 831-participant average among 86 other End Stage Renal Disease trials with a reported enrollment target (79% lower).

The record links to 2 conditions, with End Stage Renal Disease appearing as the primary indexed condition, and to 2 interventions - of which Tenapanor is the first listed.

NCT03988920 reports a single indexed study location in California.

Frequently Asked Questions

What is clinical trial NCT03988920 about?

NCT03988920 is a clinical study titled "A Long-Term Study of Tenapanor Alone or in Combination With Sevelamer in Patients With CKD on Dialysis and HP". The study is designed to evaluate the ability of tenapanor alone or in combination with sevelamer to achieve serum phosphorus concentration (sP) within the population reference range (sP \>2.5 and ≤4.5 mg/dL) in patients with end-stage renal disease (ESRD) on dialysis with hyperphosphatemia (\>4.5 m...

What is the current status of trial NCT03988920?

This trial is currently completed. It is a Phase 4 study. The enrollment target is 172 participants. The study started on 2019-06-15. Estimated completion is 2021-07-31.

What conditions does trial NCT03988920 study?

This clinical trial studies the following conditions: End Stage Renal Disease, Hyperphosphatemia.

What interventions are being tested in trial NCT03988920?

The interventions under investigation include: Tenapanor (DRUG), Sevelamer Carbonate (DRUG).

Who is sponsoring clinical trial NCT03988920?

This trial is sponsored by Ardelyx, which has 25 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT03988920 being conducted?

This trial has 1 study location across California. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for End Stage Renal Disease

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT03988920's enrollment target sits among peer trials

172 24th of 86 higher than 63 of 86 other End Stage Renal Disease trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other End Stage Renal Disease trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT03988920, the US trial registry maintained by the National Library of Medicine. NCT03988920 (mid enrollment · single site footprint · completed) retrieved and formatted by PlainTrial, see methodology.