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New pill aims to tame dangerous phosphate in kidney patients

NCT ID NCT07285304

Disease control Sponsor: Taisho Pharmaceutical Co., Ltd. Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This phase 3 study tests a new drug called TS-172 in 300 adults on hemodialysis who have high phosphate levels. Participants take the pill daily for up to a year to see if it safely and effectively controls phosphate. The goal is to offer a better treatment option for a common complication of kidney failure.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
TS-172 (a phosphate binder taken orally)
What this could lead to
If it works, this could offer a new option to help dialysis patients better manage high phosphate levels, reducing complications.
What could go wrong
This is a long-term safety study, so it may not show clear benefit. Side effects or lack of effectiveness could limit its use.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

About 300 people

The number the study aims to enrol. It can still change while the study runs.

Started

Dec 2025

Expected to finish

Jul 2027

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Hyperphosphatemia patients (outpatients) with chronic kidney disease receiving hemodialysis (HD or HDF) 3 times a week for at least 12 weeks prior to Visit 1 (Week -2) 2. Patients aged ≥18 years at the time of obtaining informed consent 3. Patients who have been prescribed at least one phosphate binder within the approved dosage, and the prescribed drug and dosage regimen should have been unchanged during the last 2 weeks prior to Visit 1 (Week -2) 4. Patients with a serum phosphorus concentration of ≥ 3.5 mg/dL and ≤ 7.0 mg/dL at Visit 1 (Week -2) or Visit 2 (Week -1) Exclusion Criteria: 1. Patients with confirmed serum intact PTH concentration \>500 pg/mL at Visit 1 (Week -2) 2. Patients who have undergone previous parathyroid intervention (PTx, PEIT, etc.)

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Conditions

The condition(s) this trial relates to.

chronic kidney disease hyperphosphatemia

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Hyperphosphatemia patients on hemodialysis

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Taisho Pharmaceutical Co., Ltd selected site

    RECRUITING

    Tokyo, Japan

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