Evidence map›Paper›PMID 35155857›Full record

ArticleKidney international reports2022

Dose-Response of Tenapanor in Patients With Hyperphosphatemia Undergoing Hemodialysis in Japan-A Phase 2 Randomized Trial.

Masaaki Inaba, Yotaro Une, Kazuaki Ikejiri, Hironori Kanda, Masafumi Fukagawa, Tadao Akizawa

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Kidney international reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
2.6field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 2 syntheses or guidelines pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Trial
  6. Article
  7. Review
  8. Tenapanor: A novel therapeutic agent for dialysis patients with hyperphosphatemia.Therapeutic apheresis and dialysis : official peer-reviewed journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy · 2025
    Review
  9. Article
  10. Review
  11. Article
  12. Constipation in Patients With Chronic Kidney Disease.Journal of neurogastroenterology and motility · 2023
    Review
  13. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 1 country.

Masaaki InabaOhno Memorial Hospital, Osaka, Japan.
Yotaro UneR&D Division, Kyowa Kirin Co., Ltd., Tokyo, Japan.
Kazuaki IkejiriR&D Division, Kyowa Kirin Co., Ltd., Tokyo, Japan.
Hironori KandaR&D Division, Kyowa Kirin Co., Ltd., Tokyo, Japan.
Masafumi FukagawaDivision of Nephrology, Endocrinology, and Metabolism, Department of Internal Medicine, Tokai University School of Medicine, Kanagawa, Japan.
Tadao AkizawaDivision of Nephrology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan.
Kyowa Kirin (Japan) · JPShowa University · JPTokai University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionSimplified, but effective, hyperphosphatemia treatments with novel mechanisms of action, tolerable safety profiles, and low pill burden are needed for patients undergoing hemodialysis. Tenapanor is a calcium (Ca)-free, nonmetal, nonpolymeric drug that reduces phosphate absorption by selectively inhibiting intestinal sodium-hydrogen exchanger 3. As the serum phosphorus (P) level-lowering effect of tenapanor has not been evaluated in Japanese patients with hyperphosphatemia undergoing hemodialysis, we evaluated its efficacy and safety in this population.

methodsThis was a multicenter, phase 2, double-blind, placebo-controlled, parallel-group, dose-finding study. Change in serum P level from baseline at week 6 was the primary end point.

resultsOverall, 207 patients were randomized to 5 groups (placebo [

conclusionIn Japanese patients undergoing hemodialysis, tenapanor was found to have a dose-responsive, serum P level-lowering effect. Diarrhea was the most frequent drug-related AE; most cases were mild and generally tolerable. Tenapanor may become a first-in-class therapeutic agent for patients with hyperphosphatemia.

Indexed as

chronic kidney diseasehemodialysishyperphosphatemiaNHE3 transporterphosphorus absorption inhibitiontenapanor

Identifiers

PMID35155857
PMCPMC8820999
OpenAlexW3216968006

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.