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Autosomal Dominant Polycystic Kidney DiseaseNCT00759369

Water as Therapy in Autosomal Dominant Polycystic Kidney Disease (ADPKD)

A study testing Water prescription in people with Autosomal Dominant Polycystic Kidney Disease, run by University of Kansas at 1 site in United States.

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

Autosomal dominant polycystic kidney disease (ADPKD) is the most common single gene disorder that is potentially fatal. ADPKD is caused by mutations in either of two genes (PKD1, PKD2). Cysts begin to develop primarily in renal collecting tubules in utero and continue to form and expand throughout the patient's life. Read more about this study

Who is it for?
Ages 18 to 50 years
What is being tested?
Water prescription
Could I receive a placebo?
No, everyone receives an active treatment
How many people
11 participants
Where
1 siteUnited States
Study dates
Sep 2008to Jul 2009
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 50 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • ADPKD verified by ultrasound, CT or MRI, family history or physical exam
  • Normal creatinine clearance, calculated by Cockroft-Gault formulat
  • Good general health
  • Controlled blood pressure, < 140/90
  • Absence of urinary tract symptoms such as dysuria, hesitancy, diminished flow

Who cannot join

  • Azotemia
  • Uncontrolled hypertension
  • Urinary tract symptoms, dysuria, hesitancy, diminished flow, gross hematuria
  • Diabetes mellitus, cancer, hematologic disorder
  • Unable to follow directions
  • Solitary kidney
Show all 9Show fewer
  • History of CHF, liver dysfunction or hyponatremia
  • Currently taking diuretics
  • Nephrotic range proteinuria (3.5 g/day)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Kansas Medical Center

    Kansas City, Kansas, 66160

Other trials in United States

About this study

Official title: Water as Therapy in Autosomal Dominant Polycystic Kidney Disease

Autosomal dominant polycystic kidney disease (ADPKD) is the most common single gene disorder that is potentially fatal. ADPKD is caused by mutations in either of two genes (PKD1, PKD2). Cysts begin to develop primarily in renal collecting tubules in utero and continue to form and expand throughout the patient's life. One of the goals of the study is to formulate a water prescription for use in clinical trials to determine the effect of sustained water diuresis on the progression of ADPKD.

Read the detailed description

The proposed study will devise a quantitative model to estimate the amount of water an individual would need to ingest in order to lower the 24 h mean urine osmolality to a level below plasma (~285 mOsm/Kg). This osmolality goal is chosen because the 24h median urine osmolality of humans is ordinarily ~753 mOsm/Kg, much greater than 285 mosm/Kg (6, 7). In other words, normal humans are usually anti-diuretic during waking hours and while asleep. Median 24h urine volume is ~1225 ml (range 1051 - 2270). In temperate climates the insensible losses of water in sweat, respiration and stool are nearly balanced by the water ingested in solid and semi-solid foods and derived from metabolism. Thus, daily urine volume measured upon arising in the morning is a reasonably good indicator of the volume of fluids drunk over the preceding 24 h.

Being tested
Water prescription
Keywords
ADPKD
Medical subject headings
Polycystic Kidney, Autosomal Dominant

What participants receive

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

  • Water prescriptionOther

    Water prescription in 12 to 16 equally divided doses

Study groups in NCT00759369
Study groupRoleWhat they receive
1ExperimentalWater prescription
Receives: Other: Water prescription

What is being measured

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

  1. Percentage of mean urine osmolality decreased from baseline

    Measured: Day 3, 4, 5

Secondary outcomes (2)
  1. Number of individuals who have an average daily solute excretion within 16.5% of baseline

    Measured: End of study

  2. Number of individuals whose average total urine volume is within 18% of baseline.

    Measured: End of study

Timeline

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

  1. First posted25 Sep 2008 (estimated)
  2. Study startSep 2008
  3. Primary completionJul 2009
  4. Study completionJul 2009

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
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
11 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00759369
Sponsor's protocol ID
11451
Status last verified
Feb 2012
First submitted
24 Sep 2008
Last updated
27 Feb 2012
Results posted
No
Data monitoring committee
No

Publications

  • Wang CJ, Creed C, Winklhofer FT, Grantham JJ. Water prescription in autosomal dominant polycystic kidney disease: a pilot study. Clin J Am Soc Nephrol. 2011 Jan;6(1):192-7. doi: 10.2215/CJN.03950510. Epub 2010 Sep 28.

    PubMed 20876670

Questions about this trial

What is this clinical trial studying?

A study testing Water prescription in people with Autosomal Dominant Polycystic Kidney Disease, run by University of Kansas at 1 site in United States.

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 5 inclusion and 9 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 27 Feb 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 United States. 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?

Percentage of mean urine osmolality decreased from baseline (time frame: Day 3, 4, 5). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00759369, which also lists 1 linked publication.

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 27 Feb 2012.

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