AzTrials
AzTrials

Female Stress Urinary IncontinenceNCT02023502

Proteomic Pattern in Female Stress Urinary Incontinence: a Pilot Study

An observational study of Female Stress Urinary Incontinence, run by Medical University of Vienna at 1 site in Austria.

Completed

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

Official record
Search all trials

Trial summary

Objective: The primary objective of the study is the comparison of protein concentrations between patients with stress urinary incontinence (SUI) and healthy controls. Aim: This pilot study aims to determine a possible altered protein profile in women suffering from SUI, compared to healthy women and therefore to… Read more about this study

Who is it for?
Ages 18 to 99 years, women onlyHealthy volunteers can take part
Conditions the study is for
Female Stress Urinary Incontinence
What is being tested?
collection of urine and blood sample
How many people
40 participants
Where
1 siteAustria
Study dates
Nov 2013to Sep 2015
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 99 years
  • Women only
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Participants will be recruited from the urogynaecology and general gynecology outpatient clinic of the Department of Obstetrics and Gynaecology at the Medical University of Vienna

Who may be able to join

  • patients with stress urinary incontinence: a history of symptoms of stress urinary incontinence for at least 3 months (including anamnestic complaints of involuntary leakage on effort or exertion or on sneezing or coughing) and a positive provocative stress test (defined as an observed transurethral loss of urine that was simultaneous with a cough or Valsalva maneuver at a bladder volume of 300ml or less)
  • patients capable of independent toiling
  • patients who are able to fully understand all study procedures and to provide written informed consent to study participation
  • age ≥ 18
  • patients after vaginal delivery

Who cannot join

  • patients who have previously been treated for SUI (both surgical or pharmacological treatment)
  • patients who have a medical history of uncontrolled overactive bladder (OAB) or urinary incontinence other than SUI (including anamnestic complaints on involuntary urine leakage accompanied by or immediately preceded by urgency, not stress induced)
  • patients with well established neurological disorder (e.g. Multiple Sclerosis, Parkinson's disease, Alzheimer's disease)
  • patients with pelvic organ prolapse stage ≥ II (ICS classification)
  • patients with a clinically significant bladder outlet obstruction and/or patients with a post void residual volume (PVR) > 100ml
  • patients with a history of acute urinary retention or history of repeated catheterizations due to acute urinary retention within the last 3 months prior to the day of informed consent
Show all 18Show fewer
  • patients with an indwelling catheter and patients practicing intermittent self- catheterization
  • patients who have undergone a bladder biopsy or any other minor pelvic surgical intervention less than 30 days prior to the day of informed consent
  • patients with a history of bladder cancer
  • patients with acute or recurrent urinary tract infection and/or unexplained haematuria
  • patients with stone(s) in the bladder or urethra and upper tract stone disease causing symptoms
  • patients with evidence of renal insufficiency (creatinine > 1.5x upper limit of normal)
  • patients with evidence of hepatic disease (total bilirubin >1.5x upper limit of normal, or AST or ALT or alkaline phosphatase >2x upper limit of normal)
  • patients with a history of alcohol and/or other drug abuse
  • patients who are unable and/or unlikely to comprehend and follow the study procedures and instructions
  • patients who are pregnant or lactating
  • patients with serious medical conditions who, in the opinion of the investigators, should not participate in this study
  • The control group is represented by patients with the same inclusion and exclusion criteria as the case group, except stress urinary incontinence.

Trial locations and contacts

1 site in 1 country.

Austria1 site
  • Medical University of Vienna, Department of Obstetrics and Gynaecology

    Vienna, 1090

Other trials in Austria

About this study

Objective: The primary objective of the study is the comparison of protein concentrations between patients with stress urinary incontinence (SUI) and healthy controls.

Aim: This pilot study aims to determine a possible altered protein profile in women suffering from SUI, compared to healthy women and therefore to discriminate a potential protein biomarker for SUI.

Read more

Main outcome measure: mass spectrometric measuring of urinary proteomic secretome in diseased and healthy subjects (sequence coverage and number of identified proteins)

Trial design: Prospective case- control study

Setting: Department of Gynecology and Obstetrics of the Medical University of Vienna in co- operation with the Core Facilities Proteomics of the Medical University of Vienna

Population: Twenty female patients with SUI and twenty healthy patients who attend the outpatient clinic of the Department of Obstetrics and Gynaecology, Medical University of Vienna (sample size calculation FDR 0.05, power of 80%, assumed proportion of true H0 0.95, assumed standardized effect size of 1)

Methods: Examinations to be carried out: patient history, provocative stress test, ICIQ short form questionnaire, residual urine volume (ultrasound) and urine analysis (dipstick testing). A urine sample is obtained from the patient after spontaneous micturition, to which protease inhibitor will be added immediately. Two serum blood vials (each 9ml) are taken from a peripheral vein of the patient for routine laboratory and further research.

Proteomics analysis will be performed using chromatographic separation (LC) with mass spectrometric detection (MS).

Read the detailed description

Methods:

Sample preparation and analysis will include:

  1. Sample collection and immediate addition of protease inhibitor cocktail (Roche, Complete Protease Inhibitor Cocktail).
  2. Urine centrifugation and filtration for removal of cell debris.
  3. Protein precipitation by applying methanol/chloroform separation for removal of all possible non-proteinic substances.
  4. Protein digestion applying in-solution trypsin, pepsin, and Glu-C.
  5. Peptide separation using nano HPLC and different chromatographic approaches.
  6. Reversed phase (RP) separation of peptides and MS detection
  7. Separation of peptides using HILIC (hydrophilic Interaction Liquid Chromatography) for discrimination of polar peptides.
  8. In addition to RP and HILIC directly coupled to MS, digested peptides will be separated using multidimensional approaches. Weak anion exchange columns operated under HILIC conditions will be used to separate peptides carrying posttranslational modifications such as phosphorylation or acetylation, thus, increasing the dynamic range of detection. During this separation, fractions will be collected and re-injected onto the RP and HILIC with MS detection.
  9. All nano HPLC separations will be performed using biocompatible separation system.

Mass spectrometric analysis of digested peptides will be performed using two different detection methods: ion-trap and the time-of-flight (qToF) MS. qToF mass spectrometric detection and analysis will also be used for the label-free quantitation of peptides and proteins detected in samples. All measurements will be performed in triplicate to provide corrections for technical variability of separation and ionization.

General database search will be performed using the Human SwissProt Database in its actual version at the time of analysis. Data search will be performed using Mascot (http://www.matrixscience.com/) and X!Tandem (http://www.thegpm.org/tandem/) search machines, and the final data allocation and filtering by using Scaffold (www.proteomsoftware.com).

Statistical analysis:

Data analysis will be conducted with the bioconductor package limma. Before data analysis, data will be filtered by excluding proteins with measurements with a low interquartile range. Groups will be compared by moderated paired t-statistics adjusting for age. Adjustment for multiple testing will be done by Benjamini-Hochberg correction controlling the FDR at 0.05.

Being tested
collection of urine and blood sample
Keywords
female stress urinary incontinence, proteomics, biomarker

What participants receive

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

  • collection of urine and blood sampleOther

Study groups in NCT02023502
Study groupRoleWhat they receive
stress urinary incontinencePatients presenting with stress urinary incontinence according to the inclusion and exclusion criteria
Receives: Other: collection of urine and blood sample
healthy controlshealthy women with the same inclusion and exclusion criteria as the case group, except for stress urinary incontinence
Receives: Other: collection of urine and blood sample

What is being measured

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

  1. mass spectrometric measuring of urinary proteomic secretome in diseased and healthy subjects (sequence coverage and number of identified proteins)

    Comparison of protein concentrations based on number of identified proteins and mass spectrometric spectral count for patients with stress urinary incontinence and healthy controls.

    Measured: The primary outcome measure will be assessed for each participant in a time frame of 4-7 days after recruitment

Timeline

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

  1. First posted30 Dec 2013 (estimated)
  2. Study startNov 2013
  3. Primary completionApr 2015
  4. Study completionSep 2015

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-control
Time perspective
Prospective
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02023502
Sponsor's protocol ID
EK 1788/2013
Status last verified
Mar 2024
First submitted
18 Nov 2013
Last updated
15 Mar 2024
Results posted
No
Data monitoring committee
No

Publications

  • Mushkat Y, Bukovsky I, Langer R. Female urinary stress incontinence--does it have familial prevalence? Am J Obstet Gynecol. 1996 Feb;174(2):617-9. doi: 10.1016/s0002-9378(96)70437-4.

    PubMed 8623794
  • Elia G, Bergman J, Dye TD. Familial incidence of urinary incontinence. Am J Obstet Gynecol. 2002 Jul;187(1):53-5. doi: 10.1067/mob.2002.124842.

    PubMed 12114888
  • Chen B, Wen Y, Zhang Z, Guo Y, Warrington JA, Polan ML. Microarray analysis of differentially expressed genes in vaginal tissues from women with stress urinary incontinence compared with asymptomatic women. Hum Reprod. 2006 Jan;21(1):22-9. doi: 10.1093/humrep/dei276. Epub 2005 Aug 26.

    PubMed 16126751
  • Hu S, Loo JA, Wong DT. Human body fluid proteome analysis. Proteomics. 2006 Dec;6(23):6326-53. doi: 10.1002/pmic.200600284.

    PubMed 17083142
  • Ho L, Sharma N, Blackman L, Festa E, Reddy G, Pasinetti GM. From proteomics to biomarker discovery in Alzheimer's disease. Brain Res Brain Res Rev. 2005 Apr;48(2):360-9. doi: 10.1016/j.brainresrev.2004.12.025.

    PubMed 15850675
  • Semmes OJ, Feng Z, Adam BL, Banez LL, Bigbee WL, Campos D, Cazares LH, Chan DW, Grizzle WE, Izbicka E, Kagan J, Malik G, McLerran D, Moul JW, Partin A, Prasanna P, Rosenzweig J, Sokoll LJ, Srivastava S, Srivastava S, Thompson I, Welsh MJ, White N, Winget M, Yasui Y, Zhang Z, Zhu L. Evaluation of serum protein profiling by surface-enhanced laser desorption/ionization time-of-flight mass spectrometry for the detection of prostate cancer: I. Assessment of platform reproducibility. Clin Chem. 2005 Jan;51(1):102-12. doi: 10.1373/clinchem.2004.038950.

    PubMed 15613711
  • Petricoin EF, Ardekani AM, Hitt BA, Levine PJ, Fusaro VA, Steinberg SM, Mills GB, Simone C, Fishman DA, Kohn EC, Liotta LA. Use of proteomic patterns in serum to identify ovarian cancer. Lancet. 2002 Feb 16;359(9306):572-7. doi: 10.1016/S0140-6736(02)07746-2.

    PubMed 11867112

Questions about this trial

What is this clinical trial studying?

An observational study of Female Stress Urinary Incontinence, run by Medical University of Vienna at 1 site in Austria.

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 18 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 Mar 2024. 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 Austria. 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?

mass spectrometric measuring of urinary proteomic secretome in diseased and healthy subjects (sequence coverage and number of identified proteins) (time frame: The primary outcome measure will be assessed for each participant in a time frame of 4-7 days after recruitment). 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 NCT02023502, which also lists 7 linked publications.

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 Mar 2024.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in