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Hyperphosphatemia

1 published article · Updated continuously

Clinical Trial Landscape

Clinical Trials for Hyperphosphatemia

28 trials tracked for Hyperphosphatemia: 19 in phase 3 or 4 and 8 with published results. The most-cited published study has 89 citations.

28Trials tracked
19Phase 3 & 4
0Recruiting
8With published results
Phase distribution
Phase 4 4 Phase 3 15 Phase 2 6 Phase 1 1 Other / NA 2
  1. Phase 3 Study to Evaluate the Efficacy of Tenapanor as Adjunctive Therapy to Phosphate Binder Therapy Completed · 89 cited
  2. Phase 3 A Phase 3 Study of Tenapanor to Treat Hyperphosphatemia in ESRD Patients on Dialysis Completed · 42 cited
  3. Phase 4 A Long-Term Study of Tenapanor Alone or in Combination With Sevelamer in Patients With CKD on Dialysis and HP Completed · 19 cited
  4. Phase 4 Study to Evaluate the Use of Tenapanor as Core Therapy in the Treatment of Hyperphosphatemia Completed · 19 cited
  5. Phase 3 An 8-Week Study to Evaluate Tenapanor in the Treatment of Hyperphosphatemia in End-Stage Renal Disease Patients on Hemodialysis (ESRD-HD) Completed · 19 cited
  6. Phase 3 Evaluation of Renvela in Patients With Chronic Kidney Disease Not On Dialysis And Hyperphosphatemia In China Completed · 6 cited
Show 22 more trials
  1. Phase 3 A Phase III Study of PA21 in Hemodialysis Patients With Hyperphosphatemia Completed · 6 cited
  2. Phase 4 Effect of Velphoro on Serum Phosphate and Albumin in Peritoneal Dialysis Patients Completed · 5 cited
  3. Phase 4 Transition to Ferric Citrate Among Hemodialysis and Peritoneal Dialysis Patients Completed
  4. Phase 3 A Long-Term Safety Extension Trial of Ferric Citrate in Patients With End-Stage Renal Disease (ESRD) on Dialysis Completed
  5. Phase 3 A Phase III Study of PA21 With Calcium Carbonate in Hemodialysis Patients With Hyperphosphatemia Completed
  6. Phase 3 Ferric Citrate for the Prevention of Renal Failure in Adults With Advanced Chronic Kidney Disease Completed
  7. Phase 3 A Phase 3, Randomized, Double Blind, Placebo-Controlled, Multi-Center, Withdrawal Study of MCI-196 in CKD on Dialysis With Hyperphosphatemia Completed
  8. Phase 3 A Study of MCI-196 in Chronic Kidney Disease Stage V Subjects on Dialysis With Hyperphosphatemia Completed
  9. Phase 3 A Phase III, Multicentre, Double-Blind, Placebo-Controlled Withdrawal Study in Patients With Hyperphosphatemia Completed
  10. Phase 3 A 4-Week Dose-Ranging and Efficacy Trial of KRX-0502 (Ferric Citrate) in Patients With End-Stage Renal Disease Completed
  11. Phase 3 A Study of MCI-196 in Chronic Kidney Disease Subjects on Dialysis With Hyperphosphatemia and Dyslipidaemia Completed
  12. Phase 3 Study of MCI-196 in Chronic Kidney Disease Stage V Subjects on Dialysis With Hyperphosphatemia Completed
  13. Phase 3 A 58-Week Safety and Efficacy Trial of Ferric Citrate in Patients With ESRD on Dialysis Completed
  14. Phase 2 An Efficacy and Safety Study of Sevelamer Carbonate in Hyperphosphatemic Pediatric Participants With Chronic Kidney Disease Completed
  15. Phase 2 A Study of HS219 in Chronic Kidney Disease Patients on Hemodialysis With Hyperphosphatemia Completed
  16. Phase 2 A Safety and Tolerability Study of Zerenex (Ferric Citrate) in Patients With End-Stage Renal Disease (ESRD) Completed
  17. Phase 2 Chewed vs. Crushed Lanthanum Carbonate in Hemodialysis Patients Completed
  18. Phase 2 Dose Finding Study to Treat High Phosphate Levels in the Blood. Completed
  19. Phase 2 A Study to Assess the Pharmacokinetics of Lanthanum Carbonate, Investigate and Compare the Efficacy, Safety and Tolerability of Lanthanum Carbonate With Calcium Carbonate in Hyperphosphataemic Children and Adolescents With Chronic Kidney Disease on Dialysis Completed
  20. Phase 1 Drug-Drug Interaction Study to Evaluate the Effect of Colestilan on the Pharmacokinetics of Single Doses of Candesartan Cilexetil in Healthy Subjects Completed
  21. N/A Trial of a New Formulation of KRX-0502 (Ferric Citrate) in Patients With End-Stage Renal Disease Completed
  22. N/A Long-term Effect of Lanthanum Carbonate on Bone Completed

Showing the 28 most-cited and recently-updated of 28 trials. Browse the full registry →

Trial data sourced from ClinicalTrials.gov. Counts describe the research landscape and are not a treatment recommendation. Informational only — not medical advice.

What the trials found For clinicians

Hyperphosphatemia: what the trials found

Several phosphate binders have demonstrated efficacy in managing serum phosphorus (s-P) levels. Tenapanor showed significant reductions in s-P levels from baseline at week 4 (p=0.0004) and a significant s-P response at week 4 (p=0.0097) 5. During a placebo-controlled randomized withdrawal period, Tenapanor was associated with significant increases in s-P levels in both the responder and ITT populations (p<0.0001 and p=0.0020, respectively) 6. Additionally, Tenapanor showed a significant placebo-adjusted increase in serum phosphate during a withdrawal period (p=0.01) and a significant reduction in serum phosphate during an 8-week treatment period (p<0.001) 7.

Ferric citrate was shown to significantly reduce serum phosphorus from baseline to the end of treatment (p<0.0001) 14. In a multi-arm study, ferric citrate was associated with a significant reduction in mean serum phosphorus from baseline to the end of the assessment period (p<0.0001) 13. Other agents, such as PA21, were associated with a significant reduction in mean serum phosphorus concentrations at the end of treatment (p=0.020) 9.

Clinical trials for MCI-196 were conducted to evaluate its effects on serum levels, including a reported percent change in serum LDL-cholesterol 17.

Recent results — preliminary, needs further review

  • Lanthanum carbonate showed a 50% success rate in reaching KDOQI targets for serum phosphate after 8 weeks 22.
  • AZD1722 was associated with a significant reduction in serum phosphate levels (p=0.012) 21.

For the clinician treating this condition

  • Tenapanor demonstrates consistent efficacy in reducing serum phosphorus levels and maintaining those reductions during withdrawal periods [5, 6, 7].
  • Ferric citrate is an established intervention for reducing serum phosphorus from baseline [13, 14].
  • PA21 has been shown to significantly lower mean serum phosphorus concentrations 9.

AI synthesis of 9 cited trials, updated Sep 3, 2026. Informational only — not medical advice; trial data sourced from ClinicalTrials.gov. How we use AI.

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