Dietary Modification Clinical Trial
— DIP HDOfficial title:
Decreasing Intakes & Absorption of Phosphorus in Haemodialysis Patients Through Food Choices
NCT number | NCT03146923 |
Other study ID # | 17-CRFC-01 |
Secondary ID | |
Status | Completed |
Phase | N/A |
First received | |
Last updated | |
Start date | March 6, 2017 |
Est. completion date | June 16, 2017 |
Verified date | January 2020 |
Source | University College Cork |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
Based on new evidence renal dietitians in Ireland are revising the diet sheet that is used to
teach patients about reducing blood phosphate. Changes that renal dietitians plan to make to
the dietary phosphorus prescription
- Inclusion of some nuts and pulses
- More detailed education re phosphate additives
- More accurate protein prescription
- Inclusion of more whole grains
- Encouraging the use of foods with a low phosphorus to protein ratio
The investigators want to test the two diet prescription to find out, which one is better at
reducing blood phosphate and which one is more acceptable to patients. The investigators also
want to make sure it is safe.
Status | Completed |
Enrollment | 74 |
Est. completion date | June 16, 2017 |
Est. primary completion date | June 16, 2017 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility |
Inclusion Criteria: - >18 years - Self reported urine output less than 2 cups (400mls) / day - On maintenance haemodialysis for > 3 months - Phosphate >1.6mmole/L on average of last 3 available routine monthly blood tests Exclusion Criteria: - Hyperkalemia, defined as a predialysis serum K on routine monthly blood test of >6mmoles/l in the month preceding the trial. - Parathyroidectomy - Corrected serum calcium <2.2 or > 2.6mmol/L or local normal units where ranges varied significantly from 2.2-2.6mmoles/l. - Acute concurrent illness, requiring hospitalisation in the 2 weeks prior to recruitment. |
Country | Name | City | State |
---|---|---|---|
Ireland | Cavan General Hospital | Cavan | |
Ireland | Fiona Byrne | Cork | |
Ireland | Beaumont Hospital | Dublin | |
Ireland | Mater Misericordia University Hospital | Dublin | |
Ireland | St. Vincents University Hospital | Dublin | |
Ireland | Tallaght Hospital | Dublin | |
Ireland | Galway University Hospitals | Galway | |
Ireland | University Hospital Limerick | Limerick | |
Ireland | Mayo University Hospital | Mayo | |
Ireland | Midland Regional Hospital Tullamore | Tullamore | Offaly |
Lead Sponsor | Collaborator |
---|---|
University College Cork | Cork University Hospital, Irish Nutrition & Dietetic Institute |
Ireland,
Byrne F, Gillman B, Renal Interest Group INDI, Eustace J. Multicentre Randomized Control Trial of Phosphate Control with a Modified as Compared to Standard Renal Diet TH-OR030. J Am Soc Nephrol 2018;29:8.
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Serum Phosphate | Difference in serum phosphate value at 1 month v baseline, in those randomised to the modified diet compared to the difference in serum phosphate value at 1 month v baseline in those randomised to standard care. | 1 month | |
Secondary | Dietary Intake | Between arm difference in dietary phosphate intake (separating phosphate into high & low bioavailability). Between arm difference in dietary fibre intake. |
1 month | |
Secondary | Serum iPTH | Difference in serum iPTH value at 1 month v baseline, in those randomised to the modified diet compared to the difference in serum iPTH value at 1 month v baseline in those randomised to standard care. | 1 month | |
Secondary | Palatability and Subject Acceptance (Tolerability) | Palatability and subject acceptance of modified diet as assessed by 5 point Likert Scale | 1 month | |
Secondary | FGF23 (Exploratory Endpoint) | Within subject change in geometric mean FGF-23 measurement at baseline as compared to the end of the 1 month intervention. Because of evidence that subjects with diabetes handle phosphorus differently we will analyse result for FGF 23 separately in patients with and without diabetes (Muras et al., 2013, Yoda et al., 2012). | 1 month | |
Secondary | Serum Potassium (Safety Endpoints): | Check serum potassium in week 2. Difference in serum potassium value at 1 month v baseline, in those randomised to the modified diet compared to the difference in serum potassium value at 1 month v baseline in those randomised to standard care. | 1 month |
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