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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00561093
Other study ID # R21 DK78012 (completed)
Secondary ID Harbor-UCLA LABi
Status Completed
Phase Phase 3
First received November 19, 2007
Last updated May 20, 2015
Start date February 2008
Est. completion date May 2011

Study information

Verified date May 2015
Source Los Angeles Biomedical Research Institute
Contact n/a
Is FDA regulated No
Health authority USA: National Institutes of Health
Study type Interventional

Clinical Trial Summary

Study of efficiency and safety of oral nutritional supplements with anti-inflammatory and antioxidative properties combined with an appetite stimulant with anti-inflammatory properties (pentoxiphylline) in treatment of malnutrition-inflammation-cachexia syndrome in maintenance hemodialysis patients


Description:

There are 350,000 hemodialysis patients in the USA; these are people who have end-stage kiney disease and whose survival depends on thrice weekly hemodialysis treatment in a dialysis clinic. Hemodialysis patients have an unacceptably high death rate, so that one out of every 4 to 5 patients die each year. Almost half of all deaths are believed to be from heart disease. Because markers of malnutrition and inflammation such as low amount of blood protein (serum albumin <4.0 g/dL), rather than traditional risk factors, are among the strongest predictors of early death and because malnutrition-inflammation appears to be closely related to oxidative stress in hemodialysis patients, we would like to examine that hypotesis that treating malnutrition-inflammation-oxidation by mean of nutritional support may improve outcomes in them. Low serum albumin <4.0 g/dL is observed in almost half of all hemodialysis patients and appears associated with low appetite, wasting, inflammation, malfunction of the vessels, cardiovascular disease and several fold increase in mortality.

We hypothesize that the malnutrition-inflammation can be significantly corrected by a simple in-center oral nutritional support with anti-inflammatory and antioxidant properties combined with an appetite stimulant with anti-inflammatory properties, leading to improved clinical and nutritional outcome measures in hemodialysis patients. We have proposed to the National Institutes of Health a pilot/feasibility study where dialysis patients will have 50-50 chance of receiving real treatment or a fake version of it (placebo). This method is called randomization, and this study type is called "randomized placebo-controlled clinical trial" with two arms, a so-called 2x2 factorial design. Our proposed study has a low-priced but efficient operational system and will be performed in 8 to 10 DaVita dialysis clinics in Los Angles area. During this 2-year pilot/feasibility study, we will test whether our proposed nutritional and anti-inflammatory treatments are safe and can improve low serum albumin and other relevant outcomes in 100 hemodialysis patients. Subjects will be adult hemodialysis patients with a serum albumin <4.0 g/dL.

The nutritional support arm will include a combination of 2 oral nutritional supplements; i.e., Nepro™ (8 oz), tailored for malnourished hemodialysis patients; and a condensed anti-inflammatory module similar to Oxepa™ (2 oz), designed for sick patients with inflammation and oxidative stress; or their placebos. The appetite stimulating arm will include a medication known as "pentoxifylline" (also known as Trental™) and the dose will be 400 mg daily or its placebo.

If a patient qualifies and agrees to participate in the study, there will be one month of observations and tests, followed by 16 weeks of treatment, and then one additional month of observation at the end. Both interventions are administered thrice weekly during routine hemodialysis for 16 weeks. Nutritional, inflammatory and oxidative measures, vessel wall (endothelial) function, quality of life and other clinical measures will be obtained before, during, and after the intervention. The safety and tolerability of the treatments, the feasibility of the study design, and the measurability of the outcomes will be examined.

We hope that the successful completion of this pilot/feasibility study in our campus leads to design of a large-scale clinical trial at the national level to improve survival in dialysis patients using nutritional and anti-inflammatory treatments.

Figure 1. Proposed pilot/feasibility study (see Appendix 1 for color version)

Group A (n=25) Nepro/Oxepa (2 cans) + PTX (400 mg) while on HD & the following day

Group B (n=25) Nepro/Oxepa (2 CANS) + placebo PTX while on HD& the following day

Group C (n=25) Placebo 2 cans + PTX (400 mg) while on HD& the following day

Group D (n=25) Placebo 2 cans + placebo PTX while on HD& the following day

PTX: pentoxifylline HD: Hemodialysis


Recruitment information / eligibility

Status Completed
Enrollment 93
Est. completion date May 2011
Est. primary completion date October 2010
Accepts healthy volunteers No
Gender Both
Age group 18 Years to 85 Years
Eligibility Inclusion Criteria:

- At least 3 months on maintenance hemodialysis,

- Last 3-month averaged serum albumin <4.0 g/dl,

- Average monthly Kt/V>1.2,

- Dialysis time between 3 and 5 hours,

- Functioning AV graft or fistula or tunnel catheter that will not switch for 6 months,

- Standardized dialysis treatment per DaVita protocol.

- In case the averaged 3-month is not <4.0 g/dl but last month serum albumin <4.0 g/dl (worsening hypoalbuminemia) patient will be qualified, if 3-month averaged nPNA < 0.8 g/kg/day or a BMI < 20 kg/m2.

Exclusion Criteria:

- Peritoneal dialysis

- Terminal illnesses with life expectancy<6 months

- Maintenance hemodialysis less than 5 months

- Concurrent appetite stimulants

- Use of IDPN in the past 2-3 months

- Inability to follow and to comply with the instructions and guidelines

- Likelihood of pregnancy or intention to become pregnant

- Acute wasting condition or active systemic disease

- Pulse chemo therapy

- Non-compliance with dialysis treatment

- Dialysis catheter that may switch soon.

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Factorial Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment


Intervention

Drug:
pentoxiphylline
pentoxiphylline 400 mg daily, anti-inflammatory and appetite-stimulating while subjects undergo thrice weekly hemodialysis and during the following non-dialysis day (6 days per week)
Dietary Supplement:
Nepro
Nepro (8 ounces) one can while undergoing thrice weekly hemodialysis and during the following non-dialysis day (6 days per week)
anti-inflammatory module (similar to Oxepa)
Oxepa-similar anti-inflammatory module (2 ounces) while undergoing thrice weekly hemodialysis and during the following non-dialysis day (6 days per week)
Drug:
Placebo pill imitating pentoxiphylline
Placebo pill imitating pentoxiphylline 400 mg daily, to imitate the anti-inflammatory and appetite-stimulating pill while subjects undergo thrice weekly hemodialysis and during the following non-dialysis day (6 days per week)
Dietary Supplement:
Placebo to imitate Nepro
Placebo to imitate Nepro (8 ounces), with less protein and calorie, one can while undergoing thrice weekly hemodialysis and during the following non-dialysis day (6 days per week)
Placebo to imitate anti-inflammatory module (similar to Oxepa)
Placebo to imitate Oxepa-similar anti-inflammatory module (2 ounces), without anti-inflammatory or anti-oxidative ingredients, while undergoing thrice weekly hemodialysis and during the following non-dialysis day (6 days per week)

Locations

Country Name City State
United States DaVita Nutrition Services Irvine California
United States Los Angeles Biomedical Research Institute (LABioMed) at Harbor-UCLA Torrance California

Sponsors (3)

Lead Sponsor Collaborator
Los Angeles Biomedical Research Institute Abbott Nutrition, DaVita Dialysis

Country where clinical trial is conducted

United States, 

References & Publications (10)

Colman S, Bross R, Benner D, Chow J, Braglia A, Arzaghi J, Dennis J, Martinez L, Baldo DB, Agarwal V, Trundnowski T, Zitterkoph J, Martinez B, Khawar OS, Kalantar-Zadeh K. The Nutritional and Inflammatory Evaluation in Dialysis patients (NIED) study: overview of the NIED study and the role of dietitians. J Ren Nutr. 2005 Apr;15(2):231-43. Review. — View Citation

Cooper A, Mikhail A, Lethbridge MW, Kemeny DM, Macdougall IC. Pentoxifylline improves hemoglobin levels in patients with erythropoietin-resistant anemia in renal failure. J Am Soc Nephrol. 2004 Jul;15(7):1877-82. — View Citation

Kalantar-Zadeh K, Balakrishnan VS. The kidney disease wasting: inflammation, oxidative stress, and diet-gene interaction. Hemodial Int. 2006 Oct;10(4):315-25. Review. — View Citation

Kalantar-Zadeh K, Block G, McAllister CJ, Humphreys MH, Kopple JD. Appetite and inflammation, nutrition, anemia, and clinical outcome in hemodialysis patients. Am J Clin Nutr. 2004 Aug;80(2):299-307. — View Citation

Kalantar-Zadeh K, Braglia A, Chow J, Kwon O, Kuwae N, Colman S, Cockram DB, Kopple JD. An anti-inflammatory and antioxidant nutritional supplement for hypoalbuminemic hemodialysis patients: a pilot/feasibility study. J Ren Nutr. 2005 Jul;15(3):318-31. — View Citation

Kalantar-Zadeh K, Ikizler TA, Block G, Avram MM, Kopple JD. Malnutrition-inflammation complex syndrome in dialysis patients: causes and consequences. Am J Kidney Dis. 2003 Nov;42(5):864-81. Review. — View Citation

Kalantar-Zadeh K, Kilpatrick RD, Kuwae N, McAllister CJ, Alcorn H Jr, Kopple JD, Greenland S. Revisiting mortality predictability of serum albumin in the dialysis population: time dependency, longitudinal changes and population-attributable fraction. Nephrol Dial Transplant. 2005 Sep;20(9):1880-8. Epub 2005 Jun 14. — View Citation

Kalantar-Zadeh K, Stenvinkel P, Bross R, Khawar OS, Rammohan M, Colman S, Benner D. Kidney insufficiency and nutrient-based modulation of inflammation. Curr Opin Clin Nutr Metab Care. 2005 Jul;8(4):388-96. Review. — View Citation

Kalantar-Zadeh K. Recent advances in understanding the malnutrition-inflammation-cachexia syndrome in chronic kidney disease patients: What is next? Semin Dial. 2005 Sep-Oct;18(5):365-9. Review. — View Citation

Rammohan M, Kalantar-Zadeh K, Liang A, Ghossein C. Megestrol acetate in a moderate dose for the treatment of malnutrition-inflammation complex in maintenance dialysis patients. J Ren Nutr. 2005 Jul;15(3):345-55. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Change in serum albumin 16 weeks No
Secondary Changes in body composition and measures of nutrition, inflammation, anemia, Health related quality of life (HRQOL), and tolerance 16 weeks Yes
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