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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03189056
Other study ID # Chagas_urology
Secondary ID
Status Completed
Phase
First received June 9, 2017
Last updated March 26, 2018
Start date July 14, 2017
Est. completion date October 20, 2017

Study information

Verified date March 2018
Source Institut de Recherche pour le Developpement
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Chagas disease is one of the most neglected vector-borne infectious disease worldwide. The first decades following the discovery of the pathology drove an international research enthusiasm, mainly concentrated on understanding the typical cardiac and digestive forms. Recently, research have been focused on vector control, which has been a huge success, at the price of neglecting the patients who already presented fixed and severe organic lesions due the chronic phase of the illness.

This study focus on a rarely studied aspect of this pathology: the involvement of the lower urinary tract and it's symptomatology in adults suffering from Chagas chronic disease.

Various studies have assessed the involvement of the lower urinary tract in chronic Chagas disease, the vast majority of them being on the animal model or very ancient human studies mainly on cadaveric specimen, the first of them being the primary description of Koeberle in 1963.

Human symptomatology deriving from bladder, ureteral and urethral chronic chagasic lesions are yet widely unknown, and only a few Brazilian and Mexican studies have intended to describe the clinical and urodynamic presentation of these patients.

The aim of this study is to assess the prevalence of urinary disorders in chronic chagasic patients and to describe their symptoms, through a complete clinical, ultrasonographic and urodynamic description.


Description:

Epidemiologic observationnal transversal study

Cohort of patients between 18 and 50 years of age, presenting a chronic form of Chagas' disease (cardiopathy, mega-colon or mega-esofagus), and presenting non of the exclusion criteria.

Recruitment via the existing patients list of positive Chagas serology of:

- the SELADIS center (Instituto de Servicios de Laboratorio de Diagnostico e Investigacion en Salud UMSA -UNIVERSIDAD MAYOR DE SAN ANDRES-)

- Private surrounding hospitals, Hospital de Clinicas and Centro de Seguro Social Universitario de La Paz (UMSA)

- Laboratorio de Inmunodiagnostico Instituto Boliviano de Biologia de la Altura -IBBA-Dr Lourdes Echalar.

Informed consent signed.

1 to 3 consultations on a period of one to 2 weeks no follow-up (transversal study)

Invasive descriptive explorations (blood sample and urodynamic study, imposing the assent of the Comité Nacional de Bioética).

Main objective : Describe the prevalence of the lower urinary tract dysfunction in patients suffering from a chronic form of Chagas' disease. The main criteria evaluated is the sum of two symptom questionnaires IPSS and ICIQ (spanish official validated translation), focusing on urinary incontinence, voiding dysfunction and quality of life.

Secondary objectives :

All the included patients will be proposed an initial consult :

- Anonymization of all the observation/results

- Past history (pathology, actual treatment,…), search of the exclusion criteria, Chagas' disease symptomatology and treatment, urological symptomatology.

- Validated questionnaires to evaluate urological symptoms, urinary incontinence, voiding dysfunction or acute urinary dysfunction, bladder hyperactivity, sexuality and fertility.

- Clinical examination

- Micturition calendar /48hours.

- Uroflowmetry, followed by ultrasonography for post-void residual and upper-urinary tract dilatation.

- Blood sample to evaluate renal function (plasmatic creatinina for CDK EPI formula). This blood sample can also be used to confirm the positive Chagas' serology if no serology is available (indirect immunofluorescence and ELISA).

Te participants presenting a symptomatic lower urinary tract dysfunction on the previous exams will be proposed a complete urodynamic exploration (cystomanometry, urethral profile, pression/flow study during mycturition).

Sterility of urine assessed before exam. Tecnical material imported from Spain, Albyn medical Smardyn and consummables. Electronic curves obtained from Phoenix software (Albyn).

Objective inclusion of 200 participants during 5 months, between June and October 2017, in the SELADIS Institute in La Paz, Bolivia. Director of study Dr Simone Frédérique Brenière (french), Bolivian Director of Institute Dra Susana Revollo.


Recruitment information / eligibility

Status Completed
Enrollment 152
Est. completion date October 20, 2017
Est. primary completion date October 20, 2017
Accepts healthy volunteers No
Gender All
Age group 18 Years to 50 Years
Eligibility Inclusion Criteria:

- Male or female between 18 and 50 years of age

- Presenting a chronic form of Chagas disease : cardiopathy or enteropathy

- Previously treated or not treated

- Signed informed consent

Exclusion Criteria:

- Diabetes

- Neurologic pathology

- Past history of extensive pelvic surgery

- Vaginal prolaps > grade 3 of Baden & Walker (female)

- Past history of vertebral fracture > L2

Study Design


Related Conditions & MeSH terms

  • Chagas Disease
  • Chagas' Disease (Chronic) With Other Organ Involvement

Intervention

Diagnostic Test:
Chagas serology
IFI + ELISA method if no biological confirmation of chagas disease is in our possession
Biological:
Creatinina
Plasmatic single mesure after consultation 1, to evaluate renal function
Procedure:
Urodynamic exploration
With a new equipement SmartDyn Albynmedical imported from Spain for the study Single use sterile equipment shipped Control of urine sterility before procedure Informed consent signed If acquired urinary infection after procedure, patient treated free of charge and clinical evolution controlled

Locations

Country Name City State
Bolivia SELADIS Institute, Universidad Mayor de San Andrès La Paz

Sponsors (2)

Lead Sponsor Collaborator
Institut de Recherche pour le Developpement Instituto de Investigación Hospital Universitario La Paz

Country where clinical trial is conducted

Bolivia, 

Outcome

Type Measure Description Time frame Safety issue
Primary Symptomatic patients ICIQ SF>0 IPSS>7 or past acute urinary retention IIEF5<11 at consultation : 1 day (transversal study, the participant will not be followed)
Secondary Megabladder Bladder capacity >600cc and <4 daily micturition at consultation : 1 day (transversal study, the participant will not be followed)
Secondary Mega ureter Ultrasonographic dilatation of renal pelvis>20mm or of ureter >7mm at consultation : 1 day (transversal study, the participant will not be followed)
Secondary Hyperactive bladder >8 daily micturition + urgency on dairy subsection detrusor hyperactivity on cystomanometry micturition calendar over 2 days (transversal study, the participant will not be followed)
Secondary Detrusor underactivity Qmax<15 mL/s and post void residual>150cc per-micturition pressure <40 cm H2O at consultation : 1 day (transversal study, the participant will not be followed)
Secondary Renal insufficiency CDK EPI<60 mL/mn at consultation : 1 day (transversal study, the participant will not be followed)
Secondary Urinary recurrent infections past history > 3 pyélonephritis or >5 cystitis/year in the past 5 years, if associated with dilatated ureter/renal pelvis or significant post void residual reported infections duing the last 5 years (transversal study, the participant will not be followed)
Secondary Urinary sphincter insufficiency P max<30 cm H20 and stress urinary incontinence at consultation : 1 day (transversal study, the participant will not be followed)
Secondary Erectile dysfunction in males IIEF5 <16 at consultation : 1 day (transversal study, the participant will not be followed)
Secondary Hypofertility oral assess by difficulty to obtain pregnancy >1 year at consultation : 1 day (transversal study, the participant will not be followed)

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