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A Proof of Concept, Phase 2a, Double-blind, Parallel Group, Randomised, Placebo controlled Study to Assess the Effect of Lanthanum Carbonate on intact FGF23 in Normo-phosphataemic Subjects with Stage 3 Chronic Kidney Disease

A Proof of Concept, Phase 2a, Double-blind, Parallel Group, Randomised, Placebo controlled Study to Assess the Effect of Lanthanum Carbonate on intact FGF23 in Normo-phosphataemic Subjects with Stage 3 Chronic Kidney Disease

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2009-016531-35-FR
Enrollment
45
Registered
2010-03-29
Start date
2010-05-18
Completion date
Unknown
Last updated
2022-04-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Kidney Disease MedDRA version: 12.1 Level: LLT Classification code 10064848 Term: Chronic kidney disease

Interventions

Trade Name: Fosrenol (Lanthanum Carbonate) Pharmaceutical Form: Chewable tablet INN or Proposed INN: lanthanum (III) carbonate hydrate CAS Number: 54451240 Other descriptive name: LANTHANUM CARBONATE

Sponsors

Shire Pharmaceutical Development Ltd
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Male or female subjects =18 years old, who have been in the care of a physician for CKD for >2 months, and are not expected to begin dialysis for at least 6 months 2) Screening c-terminal FGF23 > 50RU/mL 3) Screening estimated glomerular filtration rate (eGFR) of 30-59mL/min/1.73m2 using the formula derived from the Modification of Diet in Renal Disease (MDRD) 4) Screening normal serum phosphate (0.808-1.55mmol/L) and endogenous 25-hydroxy Vitamin D levels >20ng/mL 5) Adequate protein diet (includes 2-3 portions of protein rich food per day). Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: 1) Subjects who require Vitamin D supplementation, or compounds containing calcium, phosphate, aluminium or magnesium, subjects with acute renal failure, and subjects with rapidly progressing glomerulonephritis 2) Vegetarian diet 3) Known allergy to iodine.

Design outcomes

Primary

MeasureTime frame
Main Objective: To assess the effects of 12 weeks of treatment with lanthanum carbonate compared with placebo on serum intact Fibroblast Growth Factor 23 (FGF23) levels;Secondary Objective: 1. To assess the effects of lanthanum carbonate treatment on serum intact parathyroid hormone (iPTH) and 1,25-dihydroxy Vitamin D. 2. To assess the urinary fractional excretion of phosphate following treatment with lanthanum carbonate. 3. To assess serum phosphate, serum total calcium, and calcium-phosphate product following treatment with lanthanum carbonate. 4. To monitor the safety and tolerability of lanthanum carbonate compared with placebo in Stage 3 Chronic Kidney Disease (CKD) subjects. ;Primary end point(s): Serum intact FGF23 level at week 12

Countries

France

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026