Evaluation of Renvela in Patients With Chronic Kidney Disease Not On Dialysis And Hyperphosphatemia In China

A Randomized, Double Blind, Parallel Group Study For Assessing The Efficacy And Safety Of Renvela® Tablets For The Treatment Of Hyperphosphatemia In Patients With Chronic Kidney Disease Not On Dialysis Versus Placebo

Primary Objective:

To demonstrate efficacy of Renvela tablets in the reduction of serum phosphorus in hyperphosphatemia in participants with chronic kidney disease not on dialysis.

Secondary Objectives:

To document the efficacy of Renvela tablets in the reduction of serum lipids (total cholesterol and low-density lipoprotein cholesterol [LDL-C]).

To document the efficacy of Renvela tablets in the reduction of calcium-phosphorus product.

To document the efficacy of Renvela tablets in the reduction of intact parathyroid hormone (iPTH).

To document the efficacy of Renvela tablets in proportion of participants reaching the target serum phosphorus level 4.6 milligrams per decilitre (mg/dL) (1.47 millimoles per litre [mmol/L], inclusive).

To evaluate safety of Renvela tablets.

The total duration of study period per participant was up to 14 weeks.

Inclusion criteria:

• Participants with chronic kidney disease who had not been on dialysis, and were not expected to begin dialysis, or renal transplantation in the next 4 months from the screening visit.

• Had serum phosphorus measurement greater than or equal to (>=) 5.5 mg/dL (1.78 mmol/L) at screening visit (if participants were not on phosphate binder[s] at Screening Visit) OR at the end of Washout Period (if participants were on phosphate binder[s] at screening visit).

• Had the following laboratory measurements at screening visit:

  • 25-hydroxy vitamin D >=10 nanograms per milliliter (ng/mL).
  • intact parathyroid hormone, intact parathyroid hormone (iPTH) <=800 picograms per millilitre (pg/mL).
  • Signed written informed consent.

Exclusion criteria:

• Men or women below 18 years of age.

• Any technical/administrative reason that made it impossible to randomize the participant in the study.

• Was not of the level of understanding and willingness to cooperate with all visits and procedures, as described in the study protocol.

• Not yet received chronic kidney disease diet education before screening visit.

• Not willing and not able to avoid changes to diet during the study.

• Not willing or able to maintain screening doses of lipid lowering medication, 1, 25 dihydroxy vitamin D, and/or cinacalcet for the duration of the study, except for safety reasons.

• Not willing or not able to avoid antacids and phosphate binders containing aluminium, magnesium, calcium, or lanthanum for the duration of the study unless prescribed as an evening calcium supplement.

• Had participated in any other investigational drug studies within 30 days, or 5 half lives, whichever is longer, prior to screening visit.

• Conditions/situations such as:

  • Participant was the Investigator or any Subinvestigator, research assistant, pharmacist, study coordinator, other staff or relative thereof directly involved in the conduct of the protocol.
  • Uncooperative or any condition that could make the participant potentially non-compliant to the study procedures (for example, participants could not be contacted by phones as required in phone call visits).
  • Evidence of active malignancy.
  • Not on stable medical condition (for example, but not limited to, active ethanol or drug abuse [tobacco use acceptable]; documented poorly controlled diabetes mellitus, poorly controlled hypertension, active vasculitis, human immunodeficiency virus [HIV] infection), or had any clinically significant medical conditions.

• Had known hypersensitivity to sevelamer or any constituents of Renvela tablets.

• Had bowel obstruction, active dysphagia or swallowing disorder, or a predisposition to or current bowel obstruction, ileus, or severe gastrointestinal motility disorders including severe constipation.

• Using or plan to use anti-arrhythmic or anti-seizure medications for arrhythmia or seizure disorders.

• Was pregnant or breast-feeding.

• If the participant was female, and of childbearing potential (pre-menopausal and not surgically sterile), was not willing to use an effective contraceptive method throughout the study.

• Had any condition, which in the opinion of the investigator would prohibit the participant's inclusion in the study.

The above information was not intended to contain all considerations relevant to a participant's potential participation in a clinical trial.