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NocturiaPhase 4NCT00902655

Desmopressin in the Treatment of Mixed Nocturia With Nocturnal Polyuria and Low Nocturnal Bladder Capacity

A Phase 4 study testing Desmopressin in people with Nocturia, run by Samsung Medical Center at 6 sites in South Korea.

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

Nocturia is defined as waking one or more times to void during the period between going to bed with the intention of sleeping and waking with the intention of arising.The pathophysiology of nocturia is multifactorial and can be complex. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Nocturia
What is being tested?
Desmopressin
Could I receive a placebo?
No, everyone receives an active treatment
How many people
103 participants
Where
6 sitesSouth Korea
Study dates
Apr 2004to Dec 2005
Phase
Phase 4
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • aged ≥18 yr
  • nocturia ≥2 voids/night
  • nocturnal polyuria index (NPi) >33%
  • nocturnal bladder capacity index (NBCi) >1

Who cannot join

  • nocturia due to other defined causes of increased urinary frequency
  • primary polydipsia (>40mL/kg/24 h)
  • neurogenic bladder dysfunction
  • significant bladder outlet obstruction
  • urge incontinence
  • continued post-voiding residual urine >150mL
Show all 10Show fewer
  • serum sodium levels <135mmol/L
  • uncontrolled hypertension characterized by fluid and/or electrolyte imbalance
  • use of diuretics
  • actual or planned pregnancy

Trial locations and contacts

6 sites in 1 country.

6 sites in 1 country

South Korea6 sites
  • Keimyung University School of Medicine

    Daegu

  • College of Medicine Inha University

    Inchon

  • Pusan National University Hospital

    Pusan

  • Asan Medical Center

    Seoul

  • Korea University Anam Hospital

    Seoul

  • Seoul National University College of Medicine

    Seoul

Other trials in South Korea

About this study

Nocturia is defined as waking one or more times to void during the period between going to bed with the intention of sleeping and waking with the intention of arising.The pathophysiology of nocturia is multifactorial and can be complex. Therefore it is important to adopt a systematic approach to identify the possible causal factors of nocturia and to treat them accordingly. Patients with nocturia can be categorized as having one of the following three disorders: (1) nocturnal polyuria (NP) in which the voided urine volume during the hours of sleep exceeds 35% of the 24-hr output, (2) low nocturnal bladder capacity (NBC) causing a nocturnal urinary volume greater than the bladder capacity, (3) or mixed nocturia, a combination of the preceding two categories.

Desmopressin, a synthetic analogue of the antidiuretic hormone (ADH), has been used for many years to treat diabetes insipidus and primary nocturnal enuresis.More recently, it is also known to be effective against nocturia with NP by decreasing night-time urine production.However, it may be associated with an increased risk of developing hyponatremia due to water retention, especially in elderly patients.In the present study, we investigated the safety and efficacy of oral desmopressin for the treatment of mixed nocturia in patients with both NP and a low NBC.

Read the detailed description
  1. Open label, prospective, multicenter study
  2. Study design
  • screening (1-week), dose titration (1-3 weeks) and 4-weeks of treatment period
  • open-label dose-titration periods of up to 3 wk; the patients' optimum oral desmopressin dose (0.1, 0.2 and 0.4 mg) was determined as the dose that decreased the number of nocturnal voids by ≥50% and NUV decreased by ≥20% without hyponatremia.
  • If the patients did not meet the above criteria during dose titration period, they received the maximum tolerable dose instead of the optimum dose. -- 4-weeks of treatment period; Eligible patients were treated with the determined optimum desmopressin dose for 4-weeks.
  1. Measurements
  • 3-day frequency-volume charts
  • sleep questionnaire
  • body weight, blood and urine analysis,serum sodium monitoring
  • adverse event
Conditions
Nocturia
Being tested
Desmopressin
Keywords
Nocturnal polyuria, Nocturnal bladder capacity
Medical subject headings
Nocturia

What participants receive

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

  • DesmopressinDrug

    Also called Minirin

    Desmopressin 0.1,0.2 or 0.4 mg once daily for 3-weeks of dose titration phase and 4-weeks of treatment phase

Study groups in NCT00902655
Study groupRoleWhat they receive
DesmopressinExperimentalNot described
Receives: Drug: Desmopressin

What is being measured

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

  1. Proportion of patients with a 50% or greater reduction in the mean number of nocturnal voids compared with baseline levels.

    Measured: after 4-weeks of treatment phase

Secondary outcomes (4)
  1. Change in the mean number of nocturnal voids.

    Measured: after 4-weeks of treatment phase

  2. Change in the mean duration of the period from bedtime to the first nocturnal void.

    Measured: after 4-weeks of treatment phase

  3. Change in the proportion of patients that felt they had a good sleep experience.

    Measured: after 4-weeks of treatment phase

  4. Body weight gain.

    Measured: after 4-weeks of treatment phase

Timeline

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

  1. First posted15 May 2009 (estimated)
  2. Study startApr 2004
  3. Primary completionDec 2005
  4. Study completionDec 2005

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 4
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
103 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00902655
Sponsor's protocol ID
2004-04-05
Status last verified
May 2009
First submitted
14 May 2009
Last updated
15 May 2009
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Desmopressin in people with Nocturia, run by Samsung Medical Center at 6 sites in South Korea.

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 4 inclusion and 10 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 15 May 2009. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 6 sites in South Korea. 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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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?

Proportion of patients with a 50% or greater reduction in the mean number of nocturnal voids compared with baseline levels. (time frame: after 4-weeks of treatment phase). 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 15 May 2009.

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