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PA21 Safety and Efficacy in Adult Chinese Subjects

Hyperphosphatemia Clinical Trial

Official title:
An Open-label, Randomised, Active-controlled, Parallel Group, Multicentre, Phase 3 Study to Investigate the Safety and Efficacy of PA21 and Sevelamer Carbonate (Renvela®) in Chinese CKD Patients With Hyperphosphataemia

Clinical Trial Summary

This study evaluates the efficacy of PA21 in comparison with sevelamer carbonate (Renvela®) in lowering and maintaining serum phosphorus in adult Chinese subjects with CKD on dialysis after 12 weeks of treatment.

Clinical Trial Description

Primary Objective is to evaluate the efficacy of PA21 in comparison with sevelamer carbonate (Renvela®) in lowering and maintaining serum phosphorus in adult Chinese subjects with CKD on dialysis after 12 weeks of treatment. In addition , secondary objectives include evaluating the efficacy of PA21 and sevelamer carbonate over time as the percentage of subjects with serum phosphorus within the target range of 1.13 to 1.78 mmol/l (3.5 to 5.5 mg/dl) and to compare the safety and tolerability of PA21 versus sevelamer carbonate (Renvela®). In total, 286 patients (143 patients to PA21 treatment and 143 patients to sevelamer carbonate treatment) will be randomised with a screening period: up to 4 weeks and a washout period of up to 3 weeks. Treatment period (total duration 12 weeks) will include a dose titration period and a maintenance period of an open-label, active-controlled comparison of PA21 versus sevelamer carbonate for 4 weeks. The primary efficacy assessment will be a non-inferiority assessment of the 2 groups of subjects at Week 12 in terms of serum phosphate lowering capability. There will be a follow-up period of 30 days after last dosing. The investigational treatments will be a PA21 dose group of PA21 chewable tablets standardised to contain 500 mg of iron. PA21 contains approximately 20% m/m of elemental iron. All doses of PA21 are expressed in mg of iron. The Starting dose will be 1,500 mg/day (3 tablets/day (1 tablet per meal)). Dose increases or decreases of 500 mg/day (1 tablet/day) are permitted , provided a subject has been receiving that dose for a minimum of 2 weeks and for safety or tolerability reasons at any time. The maximum dose of PA21 will be 3,000 mg/day (6 x 500 mg tablets/day) and the minimum dose will be 1,000 mg/day (2 x 500 mg tablets/day). The active control is sevelamer carbonate, Renvela®, tablets, containing 800 mg of sevelamer carbonate. The starting dose will be 2.4 g/day (3 tablets/day). Dose increases or decreases of 2.4 g/day (3 tablets/day (1 tablet per meal)) are permitted, provided a subject has been receiving that dose for a minimum of 2 weeks, and for safety or tolerability reasons at any time. The maximum dose of sevelamer carbonate will be 14.4 g/day (18 tablets/day) and the minimum dose will be 2.4 g/day (3 tablets/day). ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03644264
Study type Interventional
Source Vifor Fresenius Medical Care Renal Pharma
Contact
Status Completed
Phase Phase 3
Start date August 31, 2018
Completion date August 21, 2020
View Details
See also
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