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Hyperphosphatemia clinical trials
2 of 9 indexed Hyperphosphatemia trials are currently recruiting.
9 US clinical trials · 2 currently recruiting
Hyperphosphatemia is the subject of 9 registered US clinical trials on ClinicalTrials.gov, 2 of them currently open to new participants. 6 are in Phase 3-4 (later-stage) and 1 in Phase 1-2 (earlier-stage). The most active sponsor is Fresenius Medical Care North America, running 2 of these trials.
The research picture
Hyperphosphatemia has 9 registered US clinical trials, 2 of them open to new participants right now, about 22% of the total.
- 2
- recruiting participants now
- 22%
- of trials open to enrollment
- 6
- in Phase 3–4 (later-stage)
- 2
- top sponsor: Fresenius Medical Care North America
Active & Recent Trials
9 total, page 1 of 1
Pharmacokinetics, Pharmacodynamics, and Safety Profile of Understudied Drugs Administered to Children Per Standard of Care (POPS)
Duke University
NCT04278404
A Study of a Novel Iron-based Phosphate Binder AP301 in Patients With Hyperphosphatemia in the U.S. and China
Alebund Pharmaceuticals
NCT06933472
A 58-Week Safety and Efficacy Trial of Ferric Citrate in Patients With ESRD on Dialysis
Keryx Biopharmaceuticals
NCT01191255
Ferric Citrate for the Prevention of Renal Failure in Adults With Advanced Chronic Kidney Disease
USRC Kidney Research
NCT05085275
Study to Evaluate the Efficacy of Tenapanor as Adjunctive Therapy to Phosphate Binder Therapy
Ardelyx
NCT03824587
Ferric Citrate for the Transition From CKD Stage 4/5 to CKD Stage 5D
Denver Nephrologists, P.C.
NCT02492620
Phosphate Kinetic Modeling
Fresenius Medical Care North America
NCT01003223
A Long-Term Study of Tenapanor Alone or in Combination With Sevelamer in Patients With CKD on Dialysis and HP
Ardelyx
NCT03988920
Phosphate Kinetic Modeling 2
Fresenius Medical Care North America
NCT01252771
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 2 | 1 |
| Phase 3 | 4 |
| Phase 4 | 2 |
Top Sponsors
Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.
Reading the Hyperphosphatemia Trial Landscape
9 indexed Hyperphosphatemia studies · 2 recruiting (22%).
Phase mix: 6 late (III/IV) vs 1 early (I/II).
Top sponsor: Fresenius Medical Care North America (2 trials), 6 others listed. 9 shown below, recruiting first.
How to read this condition's trial landscape
That ratio is a useful proxy for activity level: a high share of recruiting studies often signals that research interest is current and that new enrollment opportunities are appearing, while a low share typically means the field is dominated by completed or follow-up work where most participant spots have already been filled. These counts reflect the public registry only and include studies at every stage of design, so they should be read as an index of research attention rather than as a measure of treatment availability.
Phase 1 and Phase 2 studies focus on early safety signals, dosing, and preliminary effect, while Phase 3 studies are typically the larger efficacy and safety trials submitted toward regulatory review, and Phase 4 studies follow approved interventions in real-world use. A condition weighted toward later phases often reflects a mature research pipeline with several interventions already close to or past approval, whereas a heavier early-phase tilt suggests the field is still exploring new mechanisms and candidate approaches.
All figures are derived from the public ClinicalTrials.gov dataset maintained by the National Library of Medicine and are reproduced here for reference. Inclusion of a trial, sponsor, or intervention on this page is neither an endorsement nor a recommendation, eligibility, protocol changes, and site-level status can shift frequently, so always verify current details on ClinicalTrials.gov and consult a qualified healthcare provider before acting on anything you see here.
Frequently Asked Questions
How many clinical trials are there for Hyperphosphatemia?
PlainTrial tracks 9 US clinical trials for Hyperphosphatemia, of which 2 are currently recruiting participants. Data sourced from ClinicalTrials.gov.
How do I find a recruiting trial for Hyperphosphatemia?
Use the trial list above filtered by "Recruiting" status, or visit our trial finder at /recruiting to search by condition and state. Always discuss trial participation with your healthcare provider before enrolling.
Is this data current?
Data is sourced from ClinicalTrials.gov and reflects our most recent data pull. Trial status may have changed since then. Always verify current information at ClinicalTrials.gov before making decisions about participation.
Related
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from ClinicalTrials.gov (National Library of Medicine). Consult a qualified professional before making decisions based on this data.
Read our methodology - how this data is sourced, computed, and verified.
Source: ClinicalTrials.gov (NIH/NLM) ClinicalTrials.gov AACT registry · 2026 Trial counts and statuses sourced from ClinicalTrials.gov. Sponsor counts include both industry and federal/academic sponsors.
Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This page aggregates every registered trial for this condition, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.