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Kidney DiseasesNCT01481311

Detection of Patients With Abnormal Water Distribution Based on Bioelectrical Impedance Analysis (BIA)

An observational study of Kidney Diseases, run by Seca GmbH & Co. Kg. at 1 site in Germany.

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

The aim of this clinical investigation is to prove that the seca mbca detects dialysis patients with abnormal water distribution correctly. Abnormal high water distribution is defined as more than 2 liters of Total Body Water (TBW) above a normal value range. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Kidney Diseases
What is being tested?
medical Body Composition Analyzer seca 514/515 and Deuterium and Sodium Bromide dilution methods
How many people
62 participants
Where
1 siteGermany
Study dates
Jan 2012to Aug 2012
Phase
Observational
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 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Data of 50 patients suffering from kidney disease are planned to be collected.

Who may be able to join

  • The study will cover 50 adults. Men and women in an age range of 18 to 65 years and a Body Mass Index (BMI) range of 18.5 to 35 kg/m2 should be equally distributed. Subjects have to be patients with chronic kidney failure taking dialysis treatment. 25 patients are taken before and another 25 patients after this treatment. Patients that are taken before dialysis treatment should have been dialysed two and not three days before.

Who cannot join

  • amputation of limbs
  • gastrointestinal tract illnesses that influence the absorption of substances that are needed for dialysis
  • bed-ridden patients patients with clinical relevant hypervolaemia or hypovolaemia
  • electrical implant as cardiac pacemaker
  • insulin pumps
  • pregnancy or breastfeeding period
  • subjects who cannot provide an Informed Consent Form (ICF) by themselves
  • subjects who might be dependent from the sponsor or the investigation site

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • Charité University Medicine Berlin

    Berlin, State of Berlin, 10117

Other trials in Germany

About this study

The aim of this clinical investigation is to prove that the seca mbca detects dialysis patients with abnormal water distribution correctly. Abnormal high water distribution is defined as more than 2 liters of Total Body Water (TBW) above a normal value range. TBW and Extra Cellular Water (ECW) are calculated with prediction equations for healthy subjects generated in BCA-01. The results are compared with TBW and ECW ascertained by dilution methods as standard reference methods. The Bioelectrical Impedance Analysis (BIA) method should be evaluated to the accuracy of the absolute measurement of the volume state of dialysis patients (euvolaemic and hypervolaemic) based on a single measurement.

Conditions
Kidney Diseases
Being tested
medical Body Composition Analyzer seca 514/515, Deuterium and Sodium Bromide dilution methods
Medical subject headings
Kidney Diseases

What participants receive

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

  • medical Body Composition Analyzer seca 514/515Device

    Current of 100 µA

  • Deuterium and Sodium Bromide dilution methodsProcedure or surgery

    Orally administered to the subject in a solution with 100 ml tap water.

Study groups in NCT01481311
Study groupRoleWhat they receive
Patients before dialysis treatmentNot described
Receives: Device: medical Body Composition Analyzer seca 514/515; Procedure: Deuterium and Sodium Bromide dilution methods
Patients after dialysis treatmentNot described
Receives: Device: medical Body Composition Analyzer seca 514/515; Procedure: Deuterium and Sodium Bromide dilution methods

What is being measured

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

  1. Bioelectrical impedance (Resistance and Reactance) of 5 and 50 kHz for the right body side

    The measurements are utilized as input for prediction equations to calculate TBW and ECW.

    Measured: about 2 minutes

Secondary outcomes (3)
  1. Bioelectrical impedance (Resistance and Reactance) of 1, 1.5, 2, 3, 7.5, 10, 15, 20, 30, 75, 100, 150, 200, 300, 500, 750 and 1,000 kHz

    The measurement is planned to be done for all body segments: right arm, left arm, right leg, left leg, trunk, right body side and left body side. In total resistance and reactance at 19 frequencies for 7 body segments are to be measured.

    Measured: about 2 minutes

  2. TBW

    A D2O dose of 400 mg per kg body weight mixed with tap water is administered orally in the morning fasting and after a 2 hour fluid abstention. The distribution of the stable isotope in the TBW is completed after 4 hours. During this period, the subject remains fasting. Two venous blood samples of 10 ml whole blood are taken immediately before and four hours after taking D2O. The plasma samples are analyzed using Isoptopic Ratio Mass Spectrometry (IRMS).

    Measured: within 4 hours

  3. ECW

    Orally administered NaBr is resorbed quickly and completely and almost exclusively distributes in the extracellular compartment. Blood samples of 10 ml are taken immediately before and 4 hours after oral application of 50 mg NaBr per kg body weight. The serum sample is analyzed by X-Ray Fluorescence Spectroscopy (XRF).

    Measured: within 4 hours

Timeline

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

  1. First posted29 Nov 2011 (estimated)
  2. Study startJan 2012
  3. Primary completionAug 2012
  4. Study completionAug 2012

Resources

More details

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

Study design
Study type
Observational
Observational model
Case only
Time perspective
Cross-sectional
Enrolment
62 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01481311
Sponsor's protocol ID
BCA-05
Status last verified
Oct 2012
First submitted
10 Nov 2011
Last updated
3 Oct 2012
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

An observational study of Kidney Diseases, run by Seca GmbH & Co. Kg. at 1 site in Germany.

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 1 inclusion and 8 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 3 Oct 2012. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.

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?

Bioelectrical impedance (Resistance and Reactance) of 5 and 50 kHz for the right body side (time frame: about 2 minutes). 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 3 Oct 2012.

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