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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT03947710
Other study ID # MedAuth2
Secondary ID
Status Recruiting
Phase N/A
First received
Last updated
Start date August 1, 2019
Est. completion date August 1, 2020

Study information

Verified date January 2020
Source Aristotle University Of Thessaloniki
Contact Vasileios Vaios, MD
Phone +306984568904
Email vvaios_85@yahoo.gr
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Open label, randomized, cross-over clinical study comparing the acute effect of high versus low protein meals during dialysis on intradialytic blood pressure, 24-hour ambulatory blood pressure and arterial stiffness indices on maintenance hemodialysis patients.


Description:

A series of demographic, anthropometric and clinical data will be collected prior to enrollment. The intervention will last 3 consecutive weeks. Eligible subjects will be randomised to one group (high or low protein meals during dialysis) for one week (3 dialysis sessions). Second week will be a wash out period (patients will not consume meals during dialysis) and during the third week randomised subjects will cross over to the other study group. Every meal will provide 1/3 of daily recommended energy and protein intake (35 kcal/kg body weight/day, 0.7 gr protein/kg body weight/day for low protein meals and 1.5 gr protein/kg body weight/day for high protein meals). All the meals will be prepared in the hospital's kitchen and will be personalized to each patient's preferences. The meal will be given one hour after the start of the session and should be consumed completely during dialysis.

Patients will be evaluated for the following parameters during their midweek dialysis session:

1. Intradialytic blood pressure

2. 24-hour ambulatory blood pressure

3. Arterial stiffness indices (Central Aortic blood pressure, Pulse Wave Velocity, Augmentation Index)

4. Hemodialysis adequacy

5. Nutritional status

Intradialytic blood pressure, 24-hour ambulatory blood pressure and arterial stiffness indices will be evaluated with the use of the brachial cuff-based oscillometric device Mobil-O-Graph NG (IEM, Stolberg, Germany). Urea reduction ratio (URR) and Kt/V (standard and equilibrated) will be used as measures for dialysis adequacy. Possible changes in patients nutritional status will be assessed using the Malnutrition-Inflammation Score (MIS).


Recruitment information / eligibility

Status Recruiting
Enrollment 45
Est. completion date August 1, 2020
Est. primary completion date August 1, 2020
Accepts healthy volunteers No
Gender All
Age group 18 Years to 80 Years
Eligibility Inclusion Criteria:

- Patients to have provided informed written consent

- Patients undergoing maintenance hemodialysis for at least 3 months prior to enrollment

- Ability to self-ingest food during the dialysis session

Exclusion Criteria:

- History of malignancy or any other clinical condition associated with very poor prognosis

- Hospitalization for acute myocardial infarction, unstable angina or acute ischemic stroke within the 3 previous months

- Patients receiving parenteral nutrition

- Body mass index (BMI) of >40 kg/m2

- Bilateral functioning or non-functioning arteriovenous fistula (AVF) and/or arteriovenous graft (AVG) used as dialysis access

- Patients with major amputations (eg lower limbs)

- Women during pregnancy or lactation

- Patients with unsuccessful 24-hour ambulatory recording of blood pressure with Mobil-O-Graph device, in accordance with the current European Society of Hypertension Guidelines.

Study Design


Intervention

Other:
High-protein meals
Patients on maintenance hemodialysis will consume high protein meals during dialysis for one week (3 dialysis sessions)
Low- protein meals
Patients on maintenance hemodialysis will consume low protein meals during dialysis for one week (3 dialysis sessions)
No meals
Patients on maintenance hemodialysis will not consume meals during dialysis for one week (3 dialysis sessions)

Locations

Country Name City State
Greece AHEPA University Hospital Thessaloniki Select A State/Province

Sponsors (1)

Lead Sponsor Collaborator
Aristotle University Of Thessaloniki

Country where clinical trial is conducted

Greece, 

References & Publications (16)

Agarwal R, Georgianos P. Feeding during dialysis-risks and uncertainties. Nephrol Dial Transplant. 2018 Jun 1;33(6):917-922. doi: 10.1093/ndt/gfx195. Review. — View Citation

Borzou SR, Mahdipour F, Oshvandi K, Salavati M, Alimohammadi N. Effect of Mealtime During Hemodialysis on Patients' Complications. J Caring Sci. 2016 Dec 1;5(4):277-286. doi: 10.15171/jcs.2016.029. eCollection 2016 Dec. — View Citation

Bossola M, Luciani G, Rosa F, Tazza L. Appetite and gastrointestinal symptoms in chronic hemodialysis patients. J Ren Nutr. 2011 Nov;21(6):448-54. doi: 10.1053/j.jrn.2010.09.003. Epub 2011 Jan 15. — View Citation

Burrowes JD, Larive B, Cockram DB, Dwyer J, Kusek JW, McLeroy S, Poole D, Rocco MV; Hemodialysis (HEMO) Study Group. Effects of dietary intake, appetite, and eating habits on dialysis and non-dialysis treatment days in hemodialysis patients: cross-sectional results from the HEMO study. J Ren Nutr. 2003 Jul;13(3):191-8. — View Citation

Caglar K, Fedje L, Dimmitt R, Hakim RM, Shyr Y, Ikizler TA. Therapeutic effects of oral nutritional supplementation during hemodialysis. Kidney Int. 2002 Sep;62(3):1054-9. — View Citation

Choi MS, Kistler B, Wiese GN, Stremke ER, Wright AJ, Moorthi RN, Moe SM, Hill Gallant KM. Pilot Study of the Effects of High-Protein Meals During Hemodialysis on Intradialytic Hypotension in Patients Undergoing Maintenance Hemodialysis. J Ren Nutr. 2019 Mar;29(2):102-111. doi: 10.1053/j.jrn.2018.06.002. Epub 2018 Aug 11. — View Citation

Durnin JV, Womersley J. Body fat assessed from total body density and its estimation from skinfold thickness: measurements on 481 men and women aged from 16 to 72 years. Br J Nutr. 1974 Jul;32(1):77-97. — View Citation

Frisancho AR. New norms of upper limb fat and muscle areas for assessment of nutritional status. Am J Clin Nutr. 1981 Nov;34(11):2540-5. — View Citation

Heymsfield SB, McManus C, Smith J, Stevens V, Nixon DW. Anthropometric measurement of muscle mass: revised equations for calculating bone-free arm muscle area. Am J Clin Nutr. 1982 Oct;36(4):680-90. — View Citation

Jansen RW, Lipsitz LA. Postprandial hypotension: epidemiology, pathophysiology, and clinical management. Ann Intern Med. 1995 Feb 15;122(4):286-95. Review. — View Citation

Kistler B, Benner D, Burgess M, Stasios M, Kalantar-Zadeh K, Wilund KR. To eat or not to eat-international experiences with eating during hemodialysis treatment. J Ren Nutr. 2014 Nov;24(6):349-52. doi: 10.1053/j.jrn.2014.08.003. Epub 2014 Oct 22. — View Citation

Malindretos P, Sarafidis P, Spaia S, Sioulis A, Zeggos N, Raptis V, Kitos V, Koronis C, Kabouris C, Zili S, Grekas D. Adaptation and validation of the Kidney Disease Quality of Life-Short Form questionnaire in the Greek language. Am J Nephrol. 2010;31(1):9-14. doi: 10.1159/000252926. Epub 2009 Oct 26. — View Citation

Rhee CM, You AS, Koontz Parsons T, Tortorici AR, Bross R, St-Jules DE, Jing J, Lee ML, Benner D, Kovesdy CP, Mehrotra R, Kopple JD, Kalantar-Zadeh K. Effect of high-protein meals during hemodialysis combined with lanthanum carbonate in hypoalbuminemic dialysis patients: findings from the FrEDI randomized controlled trial. Nephrol Dial Transplant. 2017 Jul 1;32(7):1233-1243. doi: 10.1093/ndt/gfw323. — View Citation

San Juan Miguelsanz M, Pilar SM, Santos de Pablos MR. Reduction of Kt/V by food intake during haemodialysis. EDTNA ERCA J. 2001 Jul-Sep;27(3):150-2. — View Citation

Sarafidis PA, Georgianos PI, Karpetas A, Bikos A, Korelidou L, Tersi M, Divanis D, Tzanis G, Mavromatidis K, Liakopoulos V, Zebekakis PE, Lasaridis A, Protogerou AD. Evaluation of a novel brachial cuff-based oscillometric method for estimating central systolic pressure in hemodialysis patients. Am J Nephrol. 2014;40(3):242-50. doi: 10.1159/000367791. Epub 2014 Oct 11. — View Citation

Sherman RA, Torres F, Cody RP. Postprandial blood pressure changes during hemodialysis. Am J Kidney Dis. 1988 Jul;12(1):37-9. — View Citation

* Note: There are 16 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Primary Effect of meal versus no meal consumption during hemodialysis on intradialytic blood pressure Meal consumption is expected to lower intradialytic blood pressure and increase hypotensive events during hemodialysis. Intradialytic blood pressure will be evaluated with the use of the brachial cuff-based oscillometric device Mobil-O-Graph NG (IEM, Stolberg, Germany) during the midweek dialysis session. 3 weeks
Primary Effect of high versus low protein meal consumption during dialysis on intradialytic blood pressure High protein meals are expected to affect less intradialytic blood pressure than low protein meals. Intradialytic blood pressure will be evaluated with the use of the brachial cuff-based oscillometric device Mobil-O-Graph NG (IEM, Stolberg, Germany) during the midweek dialysis session. 3 weeks
Secondary Effect of high versus low protein meal consumption during dialysis on 24-hour ambulatory blood pressure 24-hour blood pressure will be evaluated with the use of the brachial cuff-based oscillometric device Mobil-O-Graph NG (IEM, Stolberg, Germany). Measurement of 24-hour ambulatory blood pressure will start at the beginning of the midweek dialysis session for each group (high versus low protein meals during dialysis). 3 weeks
Secondary Effect of high versus low protein meal consumption during dialysis on Pulse Wave Velocity Pulse Wave Velocity will be measured for each group (high versus low protein meals) during the midweek dialysis session using the brachial cuff-based oscillometric device Mobil-O-Graph NG (IEM, Stolberg, Germany). 3 weeks
Secondary Effect of high versus low protein meal consumption during dialysis on Augmentation Index Augmentation Index will be measured for each group (high versus low protein meals) during the midweek dialysis session using the brachial cuff-based oscillometric device Mobil-O-Graph NG (IEM, Stolberg, Germany). 3 weeks
Secondary Effect of high versus low protein meals during dialysis on hemodialysis adequacy. Hemodialysis adequacy will be calculated for each patient group (high versus low protein meals) using the Urea reduction ratio (URR) and Kt/V (standard and equilibrated) for the midweek dialysis session. 3 weeks
Secondary Effect of high versus low protein meals during dialysis on patients nutritional status Nutritional status will be calculated for each group (high versus low protein meals) using the Malnutrition-Inflammation Score (MIS). The Malnutrition-Inflamation score (MIS) is composed of 10 components which include: dry weight change over the last 3-6 months, current dietary intake, gastrointestinal symptoms, functional capacity (nutritionally related functional impairment), co-morbidity (including number of years on dialysis), decreased fat stores or loss of subcutaneous fat on physical examination (below eyes, triceps, biceps, chest), signs of muscle wasting (temple, clavicle, scapula, ribs, quadriceps, knee, interosseous), body mass index calculation, serum albumin levels, and serum total iron binding capacity. Each component of the MIS has 4 levels of severity, from 0 (normal) to 3 (severely abnormal). The sum of all 10 MIS components can range from 0 (normal) to 30 (severely malnourished); higher score reflects a more severe degree of malnutrition and inflammation. 3 weeks
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