A Phase 3 Study to Investigate the Safety and Efficacy of PA21, a Phosphate Binder, in Dialysis Patients

Sponsor
Vifor Pharma (Industry)
Overall Status
Completed
CT.gov ID
NCT01324128
Collaborator
Fresenius Medical Care North America (Industry)
1,059
15
3
19.1
70.6
3.7

Study Details

Study Description

Brief Summary

This is a Phase 3, randomised, active controlled, multicentre study to investigate the safety and efficacy of PA21, a phosphate binder, for control of hyperphosphataemia in dialysis patients. The primary objective is to establish the efficacy of PA21 for lowering phosphate levels in these patients.

Condition or Disease Intervention/Treatment Phase
  • Drug: PA21 (2.5 g tablet containing 500 mg iron)
  • Drug: Sevelamer carbonate
  • Drug: PA21-1 (1.25 g tablet containing 250 mg iron)
Phase 3

Study Design

Study Type:
Interventional
Actual Enrollment :
1059 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
An Open-label, Randomised, Active-controlled, Parallel Group, Multicentre, Phase 3 Study to Investigate the Safety and Efficacy of PA21 Compared With Sevelamer Carbonate Followed by a Randomised Comparison of PA21 Maintenance Dose Versus PA21-Low Dose in Dialysis Patients With Hyperphosphataemia
Study Start Date :
Mar 1, 2011
Actual Primary Completion Date :
Apr 1, 2012
Actual Study Completion Date :
Oct 1, 2012

Arms and Interventions

Arm Intervention/Treatment
Experimental: PA21 (2.5 g tablet)

Drug: PA21 (2.5 g tablet containing 500 mg iron)
Dose range of 5.0 g/day (2 tablets/day) to 15.0 g/day (6 tablets/day).

Active Comparator: Sevelamer carbonate

Drug: Sevelamer carbonate
Dose range of 2.4 g/day (3 tablets/day) to 14.4 g/day (18 tablets/day)

Other: PA21-1 (1.25 g tablet)

Drug: PA21-1 (1.25 g tablet containing 250 mg iron)
Low dose comparator (1.25 g/day)

Outcome Measures

Primary Outcome Measures

  1. Change in Serum Phosphorus Levels From Week 24 to Week 27 [Week 24, Week 27]

    Change in serum phosphorus levels compared between PA21 Maintenance Dose (MD) and PA21-1 Low Dose (LD) in Stage 2 from Week 24 to Week 27

Secondary Outcome Measures

  1. Change in Serum Phosphorus Levels From Baseline to Week 12 [Week 12 post Baseline]

    Change in serum phosphorus levels from baseline to Week 12 in the PA21 group versus the sevelamer group.

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years and Older
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • Dialysis patients with hyperphosphataemia (≥ 1.94 mmol/L; ≥ 6.0 mg/dL)

  • Stable dose of phosphate binder

  • Written informed consent

Exclusion Criteria:
  • Hyper/hypo calcemia; hyper intact parathyroid hormone (iPTH)

  • Other significant medical conditions

  • Pregnancy

Contacts and Locations

Locations

Site City State Country Postal Code
1 San Antonio Texas United States 78215
2 LKH St. Polten St. Polten Austria 3100
3 CHU Sart Tilman Liege Belgium 4000
4 Clinical Hospital Center Rijeka Rijeka Croatia 51000
5 Dialysis Centre Fresenius Medical Care Sokolov Czech Republic 35601
6 KfH Nierenzentrum Berlin-Neukoelln Berlin Germany 12045
7 Vidzemes Hospital Valmiera Latvia LV-4201
8 Vilnius University Hospital Santariskiu Clinics Vilnius Lithuania LT-08661
9 Teaching Hospital no.1 of Medical University of Lodz Lodz Poland 90-153
10 Dialmed Clinic SRL Sibiu Romania 550135
11 City Mariinsky Hospital St. Petersburg Russian Federation 191104
12 Zvezdara Clinical Medical Center Belgrade Serbia 11000
13 Lakeview Hospital Benoni South Africa 1500
14 Mykolayiv Regional Hospital Mykolayiv Ukraine 54058
15 Dorset County Hospital NHS Foundation Trust Dorset United Kingdom DT1 2JY

Sponsors and Collaborators

  • Vifor Pharma
  • Fresenius Medical Care North America

Investigators

  • Principal Investigator: Juergen Floege, MD, Medizinische Klinik II

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.
Responsible Party:
Vifor Pharma
ClinicalTrials.gov Identifier:
NCT01324128
Other Study ID Numbers:
  • PA-CL-05A
First Posted:
Mar 28, 2011
Last Update Posted:
Apr 24, 2014
Last Verified:
Apr 1, 2014
Keywords provided by Vifor Pharma
Additional relevant MeSH terms:

Study Results

Participant Flow

Recruitment Details The first 100HD subjects that completed Stage 1 in the PA21 treatment group entered Stage 2 and were randomised to PA21 Maintenance Dose (MD) or PA21-1 Low Dose (LD). Due to a randomisation error only 99 subjects were randomised into Stage 2.
Pre-assignment Detail
Arm/Group Title PA21 Stage 1 Sevelamer Carbonate Stage 1 PA21 (MD) Stage 2 PA21-1 (LD) Stage 2
Arm/Group Description PA21 (2.5 g tablet). Dose range of 5.0 g/day (2 tablets/day) to 15.0 g/day (6 tablets/day). Sevelamer carbonate. Dose range of 2.4 g/day (3 tablets/day) to 14.4 g/day (18 tablets/day). PA21 Maintenance Dose (MD). Continuation of same dose that was being received at the end of Stage 1 PA21-1 (1.25 g/day) Low Dose (LD) comparator for Stage 2.
Period Title: Stage 1
STARTED 710 349 0 0
COMPLETED 515 293 0 0
NOT COMPLETED 195 56 0 0
Period Title: Stage 1
STARTED 0 0 50 49
COMPLETED 0 0 42 46
NOT COMPLETED 0 0 8 3

Baseline Characteristics

Arm/Group Title PA21 Stage 1 Sevelamer Carbonate Stage 1 Total
Arm/Group Description PA21 (2.5 g tablet). Dose range of 5.0 g/day (2 tablets/day) to 15.0 g/day (6 tablets/day). Sevelamer carbonate. Dose range of 2.4 g/day (3 tablets/day) to 14.4 g/day (18 tablets/day). Total of all reporting groups
Overall Participants 710 349 1059
Age (Count of Participants)
<=18 years
0
0%
0
0%
0
0%
Between 18 and 65 years
512
72.1%
242
69.3%
754
71.2%
>=65 years
198
27.9%
107
30.7%
305
28.8%
Age (years) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [years]
56.3
(13.35)
55.8
(14.59)
56.2
(13.77)
Sex: Female, Male (Count of Participants)
Female
314
44.2%
129
37%
443
41.8%
Male
396
55.8%
220
63%
616
58.2%
Region of Enrollment (participants) [Number]
United States
345
48.6%
171
49%
516
48.7%
Europe
159
22.4%
77
22.1%
236
22.3%
Russian Federation
101
14.2%
50
14.3%
151
14.3%
Ukraine
34
4.8%
17
4.9%
51
4.8%
Serbia
47
6.6%
24
6.9%
71
6.7%
Croatia
19
2.7%
8
2.3%
27
2.5%
South Africa
5
0.7%
2
0.6%
7
0.7%

Outcome Measures

1. Primary Outcome
Title Change in Serum Phosphorus Levels From Week 24 to Week 27
Description Change in serum phosphorus levels compared between PA21 Maintenance Dose (MD) and PA21-1 Low Dose (LD) in Stage 2 from Week 24 to Week 27
Time Frame Week 24, Week 27

Outcome Measure Data

Analysis Population Description
For the Primary Outcome, data from the Primary Efficacy Set (PES) was used. The PES consists of subjects who were randomized to Stage 2 and received at least 1 dose of study medication during Stage 2 and had at least 1 post-baseline (Stage 2) efficacy assessment in Stage 2.
Arm/Group Title PA21 (MD) Stage 2 PA21-1 (LD) Stage 2
Arm/Group Description PA21 Stage 2 Maintenance Dose (MD). Continuation of same dose that was being received at the end of Stage 1. PA21-1 Low Dose (LD) comparator (1.25 g/day) for Stage 2
Measure Participants 44 49
Least Squares Mean (Standard Deviation) [mg/dL]
0.25
(0.23)
1.92
(0.23)
2. Secondary Outcome
Title Change in Serum Phosphorus Levels From Baseline to Week 12
Description Change in serum phosphorus levels from baseline to Week 12 in the PA21 group versus the sevelamer group.
Time Frame Week 12 post Baseline

Outcome Measure Data

Analysis Population Description
For the Secondary Outcome, data from the Per Protocol Set (PPS) was used. The PPS consists of all subjects who had completed the analysis dose titration period (baseline to Week 12), had at least 1 evaluable serum phosphorus result at or after Week 12, and had no major protocol deviations.
Arm/Group Title PA21 (2.5 g Tablet) Stage 1 Sevelamer Carbonate Stage 1
Arm/Group Description PA21 (2.5 g tablet). Dose range of 5.0 g/day (2 tablets/day) to 15.0 g/day (6 tablets/day). Sevelamer carbonate. Dose range of 2.4 g/day (3 tablets/day) to 14.4 g/day (18 tablets/day).
Measure Participants 461 224
Least Squares Mean (Standard Error) [mg/dL]
-2.19
(0.09)
-2.45
(0.11)

Adverse Events

Time Frame
Adverse Event Reporting Description For the serious adverse event (SAE) and adverse event (AE) listings, data from the Safety Set (SS) was used. The SS consists of all randomised subjects who received at least 1 dose of study treatment.
Arm/Group Title PA21 Stage 1 Sevelamer Carbonate Stage 1 PA21-1 (LD) Stage 2 PA21 (MD) Stage 2
Arm/Group Description PA21 (2.5 g tablet). Dose range of 5.0 g/day (2 tablets/day) to 15.0 g/day (6 tablets/day). Sevelamer carbonate. Dose range of 2.4 g/day (3 tablets/day) to 14.4 g/day (18 tablets/day). PA21-1 (1.25 g tablet). Low Dose (LD) comparator (1.25 g/day) for Stage 2. PA21 (2.5g tablet) Maintenance Dose (MD). Continuation of same dose that was being received at the end of Stage 1.
All Cause Mortality
PA21 Stage 1 Sevelamer Carbonate Stage 1 PA21-1 (LD) Stage 2 PA21 (MD) Stage 2
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total / (NaN) / (NaN) / (NaN) / (NaN)
Serious Adverse Events
PA21 Stage 1 Sevelamer Carbonate Stage 1 PA21-1 (LD) Stage 2 PA21 (MD) Stage 2
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 129/707 (18.2%) 69/348 (19.8%) 6/49 (12.2%) 2/45 (4.4%)
Blood and lymphatic system disorders
Anaemia 1/707 (0.1%) 1 3/348 (0.9%) 3 0/49 (0%) 0 0/45 (0%) 0
Thrombocytopenia 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Cardiac disorders
Acute left ventricular failure 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Acute myocardial infarction 9/707 (1.3%) 9 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Angina pectoris 2/707 (0.3%) 2 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Angina unstable 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Aortic valve stenosis 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Atrial fibrillation 2/707 (0.3%) 2 2/348 (0.6%) 2 0/49 (0%) 0 0/45 (0%) 0
Atrial flutter 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Atrioventricular block complete 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Bradycardia 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Cardiac arrest 3/707 (0.4%) 3 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Cardiac failure 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Cardiac failure acute 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Cardiac tamponade 1/707 (0.1%) 1 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Cardio-respiratory arrest 1/707 (0.1%) 1 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Cardiogenic shock 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Cardiopulmonary failure 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Congestive cardiac failure 6/707 (0.8%) 6 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Congestive cardiomyopathy 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Coronary artery disease 2/707 (0.3%) 2 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Coronary artery stenosis 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Myocardial infarction 2/707 (0.3%) 2 3/348 (0.9%) 3 0/49 (0%) 0 0/45 (0%) 0
Myocardial ischaemia 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Pericardial effusion 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Ventricular extrasystoles 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Ventricular tachycardia 2/707 (0.3%) 2 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Acute coronary syndrome 0/707 (0%) 0 0/348 (0%) 0 1/49 (2%) 1 0/45 (0%) 0
Congenital, familial and genetic disorders
Arteriovenous malformation 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Ear and labyrinth disorders
Vertigo 2/707 (0.3%) 2 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Endocrine disorders
Thyroiditis 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Eye disorders
Diabetic eye disease 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Vitreous haemorrhage 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Gastrointestinal disorders
Abdominal hernia obstructive 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Abdominal pain 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Abdominal wall haematoma 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Diarrhoea 2/707 (0.3%) 2 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Duodenal ulcer haemorrhage 1/707 (0.1%) 1 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Duodenitis haemorrhagic 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Faeces discoloured 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Gastritis 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Gastrointestinal haemorrhage 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Gastrointestinal necrosis 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Oesophageal ulcer 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Pancreatitis acute 2/707 (0.3%) 2 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Pancreatitis chronic 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Peritonitis 4/707 (0.6%) 4 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Umbilical hernia 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Umbilical hernia, obstructive 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Vomiting 1/707 (0.1%) 1 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
General disorders
Chest pain 8/707 (1.1%) 9 5/348 (1.4%) 6 0/49 (0%) 0 0/45 (0%) 0
Death 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Medical device complications 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 1/45 (2.2%) 1
Non-cardiac chest pain 1/707 (0.1%) 1 2/348 (0.6%) 2 0/49 (0%) 0 0/45 (0%) 0
Pyrexia 1/707 (0.1%) 2 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Thrombosis in device 0/707 (0%) 0 2/348 (0.6%) 2 0/49 (0%) 0 0/45 (0%) 0
Systemic inflammatory response syndrome 0/707 (0%) 0 0/348 (0%) 0 0/49 (0%) 0 1/45 (2.2%) 1
Hepatobiliary disorders
Biliary dyskinesia 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Cholecystitis 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Cholecystitis acute 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Infections and infestations
Abscess limb 2/707 (0.3%) 2 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Acute tonsillitis 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Appendicitis 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Arteriovenous fistula site infection 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Arteriovenous graft site infection 2/707 (0.3%) 2 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Bacteraemia 2/707 (0.3%) 2 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Bacterial sepsis 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Bactiuria 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Bronchitis 4/707 (0.6%) 4 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Bronchopneumonia 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Cellulitis 2/707 (0.3%) 2 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Clostridial infection 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Clostridium difficile colitis 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Device related infection 0/707 (0%) 0 2/348 (0.6%) 2 1/49 (2%) 1 0/45 (0%) 0
Endocarditis 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Enterococcal bacteraemia 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Escherichia bacteraemia 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Escherichia sepsis 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Gangrene 1/707 (0.1%) 1 2/348 (0.6%) 2 0/49 (0%) 0 0/45 (0%) 0
Gastroenteritis 1/707 (0.1%) 1 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Gastroenteritis viral 2/707 (0.3%) 2 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Graft infection 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Groin abscess 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Hepatic cyst infection 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Necrotising fasciitis 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Osteomyelitis 1/707 (0.1%) 1 1/348 (0.3%) 1 1/49 (2%) 1 0/45 (0%) 0
Pneumonia viral 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Peritonitis bacterial 1/707 (0.1%) 1 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Pneumonia 7/707 (1%) 7 2/348 (0.6%) 2 0/49 (0%) 0 0/45 (0%) 0
Renal cyst infection 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Sepsis 4/707 (0.6%) 5 3/348 (0.9%) 3 0/49 (0%) 0 0/45 (0%) 0
Sepsis syndrome 3/707 (0.4%) 3 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Shunt infection 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Staphylococcal bacteraemia 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Staphylococcal sepsis 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Subcutaneous abscess 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Urinary tract infection 2/707 (0.3%) 2 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Injury, poisoning and procedural complications
Accidental overdose 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Ankle fracture 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Arteriovenous fistula aneurysm 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Arteriovenous fistula site complication 0/707 (0%) 0 2/348 (0.6%) 2 0/49 (0%) 0 0/45 (0%) 0
Arteriovenous fistula site haemorrhage 3/707 (0.4%) 3 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Arteriovenous fistula thrombosis 3/707 (0.4%) 3 2/348 (0.6%) 2 1/49 (2%) 1 0/45 (0%) 0
Arteriovenous graft site haemorrhage 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Contusion 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Fall 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Femur fracture 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Pelvic fracture 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Post concussion syndrome 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Rib fracture 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Shunt occlusion 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Shunt stenosis 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Shunt thrombosis 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Tibia fracture 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Traumatic brain injury 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Vascular access complication 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Vascular graft thrombosis 3/707 (0.4%) 4 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Vascular pseudoaneurysm 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Wound complication 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Wrist fracture 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Investigations
Blood glucose abnormal 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Catheterisation cardiac 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Haemoglobin decreased 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
International normalised ratio decreased 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
International normalised ratio increased 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Metabolism and nutrition disorders
Calciphylaxis 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Diabetic ketoacidosis 2/707 (0.3%) 2 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Fluid overload 4/707 (0.6%) 4 4/348 (1.1%) 4 0/49 (0%) 0 0/45 (0%) 0
Hyperkalaemia 3/707 (0.4%) 4 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Hypoglycaemia 1/707 (0.1%) 1 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Type 1 diabetes mellitus 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Musculoskeletal and connective tissue disorders
Joint swelling 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Myalgia 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Systemic lupus erythematosus 0/707 (0%) 0 2/348 (0.6%) 2 0/49 (0%) 0 0/45 (0%) 0
Pain in extremity 0/707 (0%) 0 0/348 (0%) 0 0/49 (0%) 0 1/45 (2.2%) 1
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Myelofibrosis 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Prostate cancer recurrent 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Prostatic adenoma 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Renal cell carcinoma 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Nervous system disorders
Cerebral haemorrhage 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Cerebrovascular accident 1/707 (0.1%) 1 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Cervicobrachial syndrome 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Dementia 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Dizziness 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Dysarthria 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Embolic stroke 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Headache 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Hypertensive encephalopathy 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Syncope 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Transient ischaemic attack 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Toxic encelphalopathy 0/707 (0%) 0 0/348 (0%) 0 0/49 (0%) 0 1/45 (2.2%) 1
Mental impairment 0/707 (0%) 0 0/348 (0%) 0 1/49 (2%) 1 0/45 (0%) 0
Psychiatric disorders
Bipolar disorder 1/707 (0.1%) 2 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Renal and urinary disorders
Haemorrhage urinary tract 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Renal failure chronic 2/707 (0.3%) 2 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Renal tubular necrosis 0/707 (0%) 0 0/348 (0%) 0 1/49 (2%) 1 0/45 (0%) 0
Respiratory, thoracic and mediastinal disorders
Acute pulmonary oedema 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Acute respiratory failure 1/707 (0.1%) 1 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Chronic obstructive pulmonary disease 2/707 (0.3%) 2 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Dyspnoea 4/707 (0.6%) 4 4/348 (1.1%) 4 0/49 (0%) 0 0/45 (0%) 0
Haemoptysis 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Hypoxia 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Pleural effusion 3/707 (0.4%) 3 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Pneumonia aspiration 1/707 (0.1%) 1 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Pulmonary embolism 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Pulmonary oedema 3/707 (0.4%) 3 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Respiratory failure 1/707 (0.1%) 1 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Skin and subcutaneous tissue disorders
Dermatitis allergic 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Diabetic ulcer 1/707 (0.1%) 1 0/348 (0%) 0 1/49 (2%) 1 0/45 (0%) 0
Skin ulcer 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Surgical and medical procedures
Angioplasty 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Arteriovenous fistula operation 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Arteriovenous graft 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Ateriovenous shunt operation 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Nephrectomy 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Renal transplant 1/707 (0.1%) 1 1/348 (0.3%) 1 1/49 (2%) 1 0/45 (0%) 0
Vascular disorders
Aneurysm 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Aortic stenosis 2/707 (0.3%) 2 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Arterial thrombosis limb 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Bleeding varicose vein 2/707 (0.3%) 2 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Deep vein thrombosis 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Haemorrhage 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Hypertension 6/707 (0.8%) 6 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Hypertensive crisis 2/707 (0.3%) 2 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Hypertensive emergency 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Hypotension 3/707 (0.4%) 3 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Leriche syndrome 1/707 (0.1%) 1 0/348 (0%) 0 0/49 (0%) 0 0/45 (0%) 0
Peripheral ischaemia 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Peripheral vascular disorder 1/707 (0.1%) 1 3/348 (0.9%) 3 0/49 (0%) 0 0/45 (0%) 0
Shock haemorrhagic 0/707 (0%) 0 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Other (Not Including Serious) Adverse Events
PA21 Stage 1 Sevelamer Carbonate Stage 1 PA21-1 (LD) Stage 2 PA21 (MD) Stage 2
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 426/707 (60.3%) 162/348 (46.6%) 10/49 (20.4%) 2/45 (4.4%)
Gastrointestinal disorders
Diarrhoea 142/707 (20.1%) 184 26/348 (7.5%) 31 1/49 (2%) 1 1/45 (2.2%) 1
Faeces discoloured 109/707 (15.4%) 110 1/348 (0.3%) 1 0/49 (0%) 0 0/45 (0%) 0
Nausea 51/707 (7.2%) 60 39/348 (11.2%) 41 0/49 (0%) 0 1/45 (2.2%) 1
Vomiting 31/707 (4.4%) 36 19/348 (5.5%) 22 0/49 (0%) 0 0/45 (0%) 0
Constipation 27/707 (3.8%) 33 25/348 (7.2%) 26 0/49 (0%) 0 0/45 (0%) 0
Metabolism and nutrition disorders
Hyperphosphataemia 79/707 (11.2%) 114 27/348 (7.8%) 39 7/49 (14.3%) 7 0/45 (0%) 0
Skin and subcutaneous tissue disorders
Pruritus 23/707 (3.3%) 25 7/348 (2%) 7 3/49 (6.1%) 3 0/45 (0%) 0
Vascular disorders
Hypertension 45/707 (6.4%) 54 26/348 (7.5%) 39 0/49 (0%) 0 0/45 (0%) 0

Limitations/Caveats

[Not Specified]

More Information

Certain Agreements

Principal Investigators are NOT employed by the organization sponsoring the study.

Investigators may not present or publish partial or complete study results individually. Any manuscript or abstract proposed by the Investigators must be reviewed and approved in writing by Vifor Pharma before submission for publication. Names of all Investigators participating in the study will be included in the publication.

Results Point of Contact

Name/Title Medical Information
Organization Vifor Pharma
Phone 41 58 851 8222
Email medinfo@viforpharma.com
Responsible Party:
Vifor Pharma
ClinicalTrials.gov Identifier:
NCT01324128
Other Study ID Numbers:
  • PA-CL-05A
First Posted:
Mar 28, 2011
Last Update Posted:
Apr 24, 2014
Last Verified:
Apr 1, 2014