| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated | 
| Hyperphosphataemia in haemodialysis subjects |  | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| 
| E.1.2 | Version | 8.1 |  
| E.1.2 | Level | LLT |  
| E.1.2 | Classification code | 10020711 |  
| E.1.2 | Term | Hyperphosphataemia |  | 
| E.1.3 | Condition being studied is a rare disease | No | 
| E.2 Objective of the trial | 
| E.2.1 | Main objective of the trial | 
| A comparison of the tolerability of up to five doses (1.0-3.0 g) of Alpharen™. |  | 
| E.2.2 | Secondary objectives of the trial | 
| A comparison of the effect of Alpharen™ and sevelamer on arrhythmogenic potential (including QTc interval). |  | 
| E.2.3 | Trial contains a sub-study | No | 
| E.3 | Principal inclusion criteria | 
| 1.	Male or female subjects on active haemodialysis, aged 18 years or over who are able to comply with study procedures; 2.	Written informed consent given;
 3.	On a stable haemodialysis regimen (three times per week) for at least 3 months and be unlikely to change their dialysis prescription during the study period;
 4.	On a stable dose of a phosphate binder for at least 1 month prior to screening;
 5.	Willing to abstain from taking any phosphate binder or oral magnesium-, aluminium- or iron-containing products and preparations, other than the study medication;
 6.	Willing to avoid any intentional changes in diet such as fasting, dieting or overeating;
 7.	On a dialysate magnesium ion concentration of ≤ 1.0 mmol/L for at least 1 month prior to screening.
 |  | 
| E.4 | Principal exclusion criteria | 
| 1.	Received a cardiac transplant; 2.	Heart failure according to New York Heart Association (NYHA) Functional IV Classification;
 3.	Participation in any other clinical trial using an investigational product or device within the previous 4 weeks;
 4.	A significant history of alcohol, drug or solvent abuse in the opinion of the investigator;
 5.	Any disease or condition, physical or psychological, which in the opinion of the investigator would compromise the safety of the subject or increase the likelihood of the subject being withdrawn;
 6.	Clinically significant laboratory findings (at screening for this subject population) in the opinion of the investigator;
 7.	Any history of recent clinically significant malignancy;
 8.	A significant illness (excluding renal disease) in the 4 weeks before screening;
 9.	A history of poorly controlled epilepsy;
 10.	Female subjects who are lactating or pregnant. Women of childbearing potential (pre-menopausal and not surgically sterilised) unless they are using a reliable contraceptive method, that is, barrier methods, hormones or intrauterine device;
 11.	Allergy to Alpharen™ or sevelamer or any component of the formulations
 |  | 
| E.5 End points | 
| E.5.1 | Primary end point(s) | 
| Assessment of intolerance is defined as any of the following: 1.	Change in bowel habit intolerable to the subject.
 2.	Severe nausea.
 3.	Severe dyspepsia.
 4.	Severe abdominal pain.
 5.	Persistent (>2 episodes per day) vomiting.
 6.	Diarrhoea (liquid stool according to the Rome II classification).
 7.	Serum magnesium > 2.0 mmol/L.
 8.	Serum phosphate < 0.7 mmol/L.
 |  | 
| E.6 and E.7 Scope of the trial | 
| E.6 | Scope of the trial | 
| E.6.1 | Diagnosis | No | 
| E.6.2 | Prophylaxis | No | 
| E.6.3 | Therapy | No | 
| E.6.4 | Safety | Yes | 
| E.6.5 | Efficacy | No | 
| E.6.6 | Pharmacokinetic | No | 
| E.6.7 | Pharmacodynamic | No | 
| E.6.8 | Bioequivalence | No | 
| E.6.9 | Dose response | No | 
| E.6.10 | Pharmacogenetic | Information not present in EudraCT | 
| E.6.11 | Pharmacogenomic | No | 
| E.6.12 | Pharmacoeconomic | No | 
| E.6.13 | Others | No | 
| E.7 | Trial type and phase | 
| E.7.1 | Human pharmacology (Phase I) | No | 
| E.7.1.1 | First administration to humans | No | 
| E.7.1.2 | Bioequivalence study | No | 
| E.7.1.3 | Other | No | 
| E.7.1.3.1 | Other trial type description |  | 
| E.7.2 | Therapeutic exploratory (Phase II) | Yes | 
| E.7.3 | Therapeutic confirmatory (Phase III) | No | 
| E.7.4 | Therapeutic use (Phase IV) | No | 
| E.8 Design of the trial | 
| E.8.1 | Controlled | Yes | 
| E.8.1.1 | Randomised | Yes | 
| E.8.1.2 | Open | Yes | 
| E.8.1.3 | Single blind | No | 
| E.8.1.4 | Double blind | No | 
| E.8.1.5 | Parallel group | Yes | 
| E.8.1.6 | Cross over | No | 
| E.8.1.7 | Other | No | 
| E.8.2 | Comparator of controlled trial | 
| E.8.2.1 | Other medicinal product(s) | Yes | 
| E.8.2.2 | Placebo | No | 
| E.8.2.3 | Other | No | 
| E.8.3 | The trial involves single site in the Member State concerned | Information not present in EudraCT | 
| E.8.4 | The trial involves multiple sites in the Member State concerned | Yes | 
| E.8.4.1 | Number of sites anticipated in Member State concerned | 6 | 
| E.8.5 | The trial involves multiple Member States | No | 
| E.8.6 Trial involving sites outside the EEA | 
| E.8.6.1 | Trial being conducted both within and outside the EEA | No | 
| E.8.6.2 | Trial being conducted completely outside of the EEA | Information not present in EudraCT | 
| E.8.7 | Trial has a data monitoring committee | No | 
| E.8.8 | Definition of the end of the trial and justification where it is not the last
                        visit of the last subject undergoing the trial | 
| The end of the trial is defined as 15 days after the Last Subject Last Visit (i.e., the end of the SAE reporting period). |  | 
| E.8.9 Initial estimate of the duration of the trial | 
| E.8.9.1 | In the Member State concerned years |  | 
| E.8.9.1 | In the Member State concerned months | 10 | 
| E.8.9.1 | In the Member State concerned days |  | 
| E.8.9.2 | In all countries concerned by the trial months | 10 |