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Acute Kidney InjuryNutriAKINCT02831062

Nutritional Therapy to Prevent Progression of Acute Kidney Injury to Chronic Kidney Disease

A study testing low protein diet + ketosteril in people with Acute Kidney Injury and Chronic Kidney Disease, run by University of California, San Diego.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study will evaluate patients who have an episode of moderate to severe acute kidney injury (AKI) and are followed in a focused post-AKI clinic. After patients present signs of kidney recovery and before hospital discharge, patients who give consent will be enrolled in the study. Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Acute Kidney Injury, Chronic Kidney Disease
What is being tested?
low protein diet + ketosteril
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
50 participants
Where
No sites listed yet
Study dates
1 Aug 2016to 31 Dec 2018
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Duration of stage 2/3 AKI episode ≥ 72 hrs and ≤ 21 days
  • Total hospital stay ≤ 21 days

Who cannot join

  • Baseline Chronic Kidney Disease Stage 4 or higher (estimated Glomerular Filtration Rate (eGFR)) <30ml/min/1.73m2) prior to their AKI episode
  • Patients dialysis dependent at hospital discharge
  • Dialysis dependency > 14 days at time of enrolment
  • eGFR exclusion criteria:
  • for patients that required dialysis during hospital stay - measured GFR less than 15ml/min and/or urine output less than 500ml at hospital discharge
  • for patients with known baseline serum creatinine (SCr) - renal recovery with an eGFR more than 80% from baseline at hospital discharge
Show all 20Show fewer
  • for patients with unknown previous renal function - eGFR > 60ml/min/1.73m2 at time of hospital discharge
  • Suspected or biopsy proven glomerulonephritis as cause of AKI
  • Obstructive nephropathy as cause of AKI.
  • Kidney transplant recipient and patients in the kidney transplant list
  • Chronic liver disease
  • High likelihood of re-hospitalization or death in the following 6 months, ascertained by physician in charge of the patient.
  • Hypercalcemia - Ca > within one standard deviation of reference level upper limit or albumin corrected
  • Lactating or pregnant woman or woman planning to become pregnant within the timeframe of the study
  • Inability to follow up study procedures for at least 6 months
  • Unwillingness to give consent
  • Institutionalized individuals (prisoners, significant mental illness, or nursing home residents)
  • Body weight <70% or >150% of standard body weight
  • History of phenylketonuria or other major disorder of amino acid metabolism
  • Hypersensitivity to the active substances or to any of the excipients of Ketosteril.

About this study

This study will evaluate patients who have an episode of moderate to severe acute kidney injury (AKI) and are followed in a focused post-AKI clinic. After patients present signs of kidney recovery and before hospital discharge, patients who give consent will be enrolled in the study. At the first post-AKI clinic visit, patients will be randomly allocated to follow a normal (ad-lib) or a low protein diet (LPD) for 3 months. Patients allocated to a LPD will receive a drug called Ketosteril. This drug allows the intake of essential amino acids while minimizing the amino-nitrogen intake, what in excess, can be bad for the recovered kidney. The investigators will evaluate the nutritional parameters and the kidney recovery of all patients and compare these parameters in those two groups.

Read the detailed description

This is a pilot single center, randomized controlled, trial of patients who have an episode of Stage 2/3 AKI and are followed in a focused post-AKI clinic. Patients will be randomize to either; a. LPD-K diet containing 0.6 g protein/kg per day, phosphorus 5-10 mg/kg/day, Ketosteril 1 capsule per 5 kg body weight/day divided over three doses (max 8 capsules per dose) or b. ad lib diet. Ketosteril should be takes daily during meals and the tablets must not be chewed. Ingestion during meals facilitates proper absorption and the metabolisation into the corresponding amino acids.

After the initial assessment, those randomized to LPD-K will be on this diet for a maximum of 90 days. Additional interventions will include dietary counselling and questionnaire in both groups. We would aim for maintaining serum bicarbonate levels ≥ 22meq/L in both groups.

Evaluation of renal function will be performed using blood and urine tests. In addition, specimens will be collected in a bio-repository, and tested for biomarkers of renal structural damage. Comprehensive nutritional assessment will be performed by a dietitian, along with bioelectrical impedance measurements, blood and urine tests. 24-hour urine urea nitrogen and food records will be used to estimate the protein intake of each individual. Quality of well-being will be assessed using a standardized tool such as Euro Quality of Life (EQ-5D), Charlson Index, and Short Form 8 (SF8) or equivalent. Relevant clinical events (adherence to follow-up, death, hospitalization, renal recovery, repeat AKI episodes) will be tracked throughout the study.

Being tested
low protein diet + ketosteril
Keywords
nutrition, progression
Medical subject headings
Acute Kidney Injury, Renal Insufficiency, Chronic, Disease Progression

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • low protein diet + ketosterilOther

    Patients will follow a diet containing 0.6 g protein/kg per day, phosphorus 5-10 mg/kg/day, Ketosteril 1 capsule per 5 kg body weight/day divided over three doses (max 8 capsules per dose).

Study groups in NCT02831062
Study groupRoleWhat they receive
ad lib dietNo interventionPatients who have an episode of Stage 2/3 AKI and are followed in a focused post-AKI clinic. Patients will be asked to continue on their regular diet and the protein and caloric ingestion will be recorded at each visit.
Low Protein Diet + KetosterilExperimentalPatients who have an episode of Stage 2/3 AKI and are followed in a focused post-AKI clinic. Patients in this arm will be prescribed a low protein diet (LPD) and +Ketosteril supplementation, containing 0.6 g protein/kg per day, phosphorus 5-10 mg/kg/day, Ketosteril 1 capsule per 5 kg body weight/day divided over three doses (max 8 capsules per dose). Protein and caloric ingestion will be recorded.
Receives: Other: low protein diet + ketosteril

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. feasibility of the LPD-K diet

    Feasibility: assess the compliance with diet and drug. Compliance to the assigned protein prescription will be estimated at each visit during the intervention period by nutrient intake data obtained from 3-day food records and the estimated protein intake calculated from urinary nitrogen appearance in 24-hour urine samples. Treatment compliance will be assessed by counting returned tablets.

    Measured: 6 months

Secondary outcomes (3)
  1. degree of recovery of renal function

    percentage of renal function recovery using baseline estimated GFR as reference. Recovery will be considered as

    • Complete: return of SCr by no less 20% from baseline in patients with known previous renal function. For patients without previous renal function, we will consider complete recovery if measured GFR more or equal to 90ml/min/1.73m2 .
    • Partial: return of SCr less than 20% from baseline in dialysis independent patients. For patients without previous renal function, we will consider partial recovery if measured GFR less than 90ml/min/1.73m2.

    Measured: 6 months

  2. rate of recovery of renal function

    Slope of renal function recovery using baseline estimated GFR as reference.

    Measured: 6 months

  3. safety of the LPD-K diet

    Evaluate adverse events related to ketosteril by monitoring serum calcium levels at each visit to determine the development of hypercalcemia Serum calcium levels > 10.5 mg/dl

    Measured: 6 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Jul 2016 (estimated)
  2. Study start1 Aug 2016
  3. Primary completion20 Jul 2018
  4. Study completion31 Dec 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
50 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02831062
Sponsor's protocol ID
151843
Acronym
NutriAKI
Status last verified
Jul 2020
First submitted
5 May 2016
Last updated
28 Jul 2020
Results posted
No
Data monitoring committee
No
Individual data sharing
No: individual data will not be shared

Questions about this trial

What is this clinical trial studying?

A study testing low protein diet + ketosteril in people with Acute Kidney Injury and Chronic Kidney Disease, run by University of California, San Diego.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 20 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 28 Jul 2020. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

feasibility of the LPD-K diet (time frame: 6 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Jul 2020.

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