Study of Transanal Irrigation vs Standard Care for Constipation, Gut Microbiota, and Motor Disorders in Parkinson's Disease (TAI-PD)
28 juli 2026 bijgewerkt door: Simona Ascanelli, University Hospital of Ferrara
Trial Comparing the Efficacy of Transanal Irrigation Versus Standard Bowel Care in Patients With Parkinson's Disease and Severe Constipation. Impact on Gut Microbiome and Motor Disorders. TAI-PD Study.
Constipation is one of the most common and disabling non-motor symptoms of Parkinson's disease (PD), often resulting in reduced quality of life and increased healthcare burden. Standard bowel care (SBC), including dietary modifications, fluid intake, physical activity, and laxative therapy, may not provide adequate symptom control in patients with severe constipation.
The purpose of this study is to evaluate whether transanal irrigation (TAI) using the Qufora Flow device is more effective than SBC in improving bowel function in patients with PD and severe constipation. In addition to bowel symptom improvement, the study will investigate the potential effects of TAI on gut microbiota composition, motor and non-motor symptoms of PD, treatment adherence, and safety.
Participants will be randomly assigned to receive either TAI or SBC and will be followed for 24 months. Clinical assessments, patient-reported outcome measures, and stool samples will be collected throughout the study to evaluate treatment effectiveness and to explore the relationship between bowel management, gut microbiota, and Parkinson's disease progression.
Studie Overzicht
Toestand
Nog niet aan het werven
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
Constipation affects up to 80% of individuals with Parkinson's disease (PD) and frequently precedes the onset of motor symptoms. It represents one of the most burdensome non-motor manifestations of the disease, significantly impairing quality of life and increasing the need for healthcare interventions. Despite the widespread use of standard bowel care (SBC), many patients continue to experience persistent constipation, highlighting the need for more effective therapeutic strategies.
Transanal irrigation (TAI) is an established bowel management technique that has demonstrated efficacy in patients with neurogenic bowel dysfunction resulting from spinal cord injury, multiple sclerosis, and other neurological disorders. However, evidence regarding its effectiveness in patients with Parkinson's disease remains limited.
This multicenter, randomized controlled trial has been designed to compare the effectiveness of TAI using the Qufora Flow device with SBC in adults with Parkinson's disease and severe constipation. The study will evaluate whether TAI provides superior long-term bowel symptom control while also investigating its impact on patient-reported outcomes, treatment adherence, and safety.
An additional objective of the study is to explore the relationship between bowel management and gut microbiota composition. Increasing evidence suggests that alterations in the gut microbiome may contribute to the pathophysiology and progression of Parkinson's disease through the gut-brain axis. By analyzing longitudinal stool samples, the study aims to determine whether improved bowel management through TAI is associated with changes in gut microbiota and whether these changes correlate with clinical outcomes.
Participants will be followed for 24 months with standardized clinical evaluations and microbiological assessments performed according to the study protocol. The findings are expected to provide new evidence regarding the role of transanal irrigation in the management of constipation associated with Parkinson's disease and to improve understanding of the relationship between bowel function, the gut microbiome, and disease manifestations.
Studietype
Ingrijpend
Inschrijving (Geschat)
200
Fase
- Niet toepasbaar
Contacten en locaties
In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.
Studiecontact
- Naam: Simona Ascanelli, Medical Doctor
- Telefoonnummer: +39 0532 236316
- E-mail: simona.ascanelli@unife.it
Studie Locaties
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Ferrara
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Ferrara, Ferrara, Italië, 44100
- University Hospital Ferrara
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Deelname Criteria
Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Nee
Beschrijving
Inclusion Criteria:
For inclusion in the study, subjects must fulfil all of the following criteria:
- Provision of informed consent.
- Female or male aged 18 years or above.
- Established diagnosis of PD according to MDS criteria
- Patients with bowel symptoms post-dating and related to a diagnosis of PD.
- PD patients suffering from constipation defined by Cleveland Clinic (Wexner) constipation score ≥10 confirmed at Baseline.
- Only TAI treatment naïve patient (not having previously used any particular TAI system).
- Judged eligible for TAI as per standardized treatment pathway .
- Able to read, write and understand information given to them regarding the study.
Exclusion Criteria
Any of the following is regarded as a criterion for exclusion from the study:
- Any confirmed or suspected diagnosis of anal or colorectal stenosis, active inflammatory bowel disease, acute diverticulitis, severe diverticulosis, colorectal cancer, ischemic colitis, history of life-threatening autonomic dysreflexia, bleeding disorders, unspecified peri-anal conditions.
- Other significant neurological diseases (defined as all neurological diseases except for minor functional neurological syndromes or non-PD related neuro complications).
- Opioid consumption ≤24 hours prior enrolment.
- Taking probiotics in the past 30 days.
- Antibiotic therapy in the past 3 weeks.
- Performed endoscopic polypectomy within 4 weeks prior enrolment.
- Ongoing, confirmed pregnancy or lactation.
- Any neuromodulation that can affect the pelvic organ function.
- Current treatment of prokinetics.
- Any other condition, as judged by the investigator, might make follow-up or investigations inappropriate.
Exclusion Criteria:
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Studie plan
Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
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Experimenteel: Transanal Irrigation (TAI) with Qufora Flow Device
Participants randomized to this arm will receive transanal irrigation (TAI) using the Qufora Flow device.
Subjects will be trained in proper device use after randomization.
Treatment is administered as part of routine management of neurogenic bowel dysfunction in Parkinson's disease.
Participants will attend scheduled on-site visits at Baseline, 6 months, and 24 months, and will complete telephone follow-ups at 1 month and 12 months.
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Transanal irrigation performed using a CE-marked transanal irrigation system (Irrisedo Flow, Qufora, Allerød, Denmark) for the management of neurogenic bowel dysfunction in patients with Parkinson's disease.
Participants randomized to this arm will receive training on device use and will perform irrigation according to clinical practice and individual needs throughout the study period.
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Actieve vergelijker: Standard Bowel Care (SBC)
Participants randomized to this arm will receive standard bowel care (SBC), including lifestyle advice and recommendations for laxative agents as clinically indicated.
Subjects will have the same frequency of contact with the investigator or delegate as the experimental arm, including scheduled on-site visits at Baseline, 6 months, and 24 months, and telephone follow-ups at 1 month and 12 months.
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Standard bowel care including lifestyle advice (dietary and behavioral recommendations) and the use of laxative agents as clinically indicated.
Participants will receive the same frequency of clinical follow-up as the experimental arm.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Change From Baseline in Cleveland Clinic Constipation Score (Wexner Constipation Score)
Tijdsspanne: Baseline, 6 months, and 24 months.
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Constipation severity will be assessed using the Cleveland Clinic Constipation Score (Wexner Constipation Score).
The score ranges from 0 to 30, where higher scores indicate more severe constipation.
The outcome measure will be the change from baseline in total score at each assessment.
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Baseline, 6 months, and 24 months.
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Change From Baseline in Patient Assessment of Constipation Quality of Life (PAC-QOL) Total Score
Tijdsspanne: Baseline, 6 months, and 24 months.
|
Quality of life related to constipation will be assessed using the Patient Assessment of Constipation Quality of Life (PAC-QOL) questionnaire.
The total score ranges from 0 to 4, with higher scores indicating poorer constipation-related quality of life.
The outcome measure will be the change from baseline in total score.
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Baseline, 6 months, and 24 months.
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Change From Baseline in Neurogenic Bowel Dysfunction (NBD) Score
Tijdsspanne: Baseline, 6 months, and 24 months.
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Bowel dysfunction severity will be assessed using the Neurogenic Bowel Dysfunction (NBD) Score.
The score ranges from 0 to 47, with higher scores indicating more severe bowel dysfunction.
The outcome measure will be the change from baseline in total score.
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Baseline, 6 months, and 24 months.
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Change From Baseline in Cleveland Clinic Fecal Incontinence Score (Wexner Fecal Incontinence Score)
Tijdsspanne: Baseline, 6 months, and 24 months.
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Fecal incontinence severity will be assessed using the Cleveland Clinic Fecal Incontinence Score (Wexner Fecal Incontinence Score).
The score ranges from 0 to 20, with higher scores indicating more severe fecal incontinence.
The outcome measure will be the change from baseline in total score.
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Baseline, 6 months, and 24 months.
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Change From Baseline in Treatment Satisfaction Measured by Visual Analog Scale (VAS)
Tijdsspanne: Baseline, 6 months, and 24 months.
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Patient satisfaction with bowel management and study treatment will be assessed using a Visual Analog Scale (VAS) ranging from 0 to 10, where higher scores indicate greater satisfaction.
The outcome measure will be the change from baseline.
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Baseline, 6 months, and 24 months.
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Treatment Adherence
Tijdsspanne: Baseline, 6 months, and 24 months.
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Treatment adherence will be assessed as the number and percentage of participants remaining on the assigned study treatment (TAI or standard bowel care) at each follow-up visit.
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Baseline, 6 months, and 24 months.
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Change From Baseline in Hoehn and Yahr Stage
Tijdsspanne: Baseline, 6 months, and 24 months.
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Disease severity will be assessed using the Hoehn and Yahr staging scale.
The scale ranges from Stage 1 to Stage 5, with higher stages indicating more advanced Parkinson's disease.
The outcome measure will be the change from baseline in disease stage.
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Baseline, 6 months, and 24 months.
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Number of Participants With Adverse Events, Serious Adverse Events, and Device Deficiencies
Tijdsspanne: From randomization until 24 months.
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Safety will be assessed by recording the number of participants experiencing adverse events (AEs), serious adverse events (SAEs), and device deficiencies during the study period.
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From randomization until 24 months.
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Change in Gut Microbiota Composition
Tijdsspanne: Baseline, 6 months, and 24 months
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Gut microbiota composition will be assessed from stool samples using microbiological sequencing analysis.
Changes in microbial composition and diversity from baseline will be compared between treatment groups.
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Baseline, 6 months, and 24 months
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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Total Score
Tijdsspanne: Baseline, 6 months, and 24 months.
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Motor and non-motor symptoms will be assessed using the Movement Disorder Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS).
The total score ranges from 0 to 272, with higher scores indicating greater severity of Parkinson's disease symptoms.
The outcome measure will be the change from baseline in the total score.
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Baseline, 6 months, and 24 months.
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Change From Baseline in Montreal Cognitive Assessment (MoCA) Score
Tijdsspanne: Baseline, 6 months, and 24 months.
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Cognitive function will be assessed using the Montreal Cognitive Assessment (MoCA).
The score ranges from 0 to 30, with higher scores indicating better cognitive function.
The outcome measure will be the change from baseline in total score.
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Baseline, 6 months, and 24 months.
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Change From Baseline in Non-Motor Symptoms Scale (NMSS) Total Score
Tijdsspanne: Baseline, 6 months, and 24 months.
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Non-motor symptoms will be assessed using the Non-Motor Symptoms Scale (NMSS).
The total score ranges from 0 to 360, with higher scores indicating a greater burden of non-motor symptoms.
The outcome measure will be the change from baseline in total score.
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Baseline, 6 months, and 24 months.
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Change From Baseline in SCOPA-AUT Total Score
Tijdsspanne: Baseline, 6 months, and 24 months.
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Autonomic symptoms will be assessed using the Scale for Outcomes in Parkinson's Disease for Autonomic Symptoms (SCOPA-AUT).
The total score ranges from 0 to 69, with higher scores indicating more severe autonomic dysfunction.
The outcome measure will be the change from baseline in total score.
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Baseline, 6 months, and 24 months.
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Change From Baseline in Parkinson's Disease Questionnaire-39 (PDQ-39) Summary Index
Tijdsspanne: Baseline, 6 months, and 24 months.
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Health-related quality of life will be assessed using the Parkinson's Disease Questionnaire-39 (PDQ-39).
The Summary Index ranges from 0 to 100, with higher scores indicating poorer quality of life.
The outcome measure will be the change from baseline in the Summary Index.
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Baseline, 6 months, and 24 months.
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Change From Baseline in Levodopa Equivalent Daily Dose (LEDD)
Tijdsspanne: Baseline, 6 months, and 24 months.
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The Levodopa Equivalent Daily Dose (LEDD), expressed in milligrams per day (mg/day), will be recorded to assess changes in dopaminergic therapy during the study.
The outcome measure will be the change from baseline in LEDD.
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Baseline, 6 months, and 24 months.
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Medewerkers en onderzoekers
Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.
Publicaties en nuttige links
De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.
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Studie record data
Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.
Bestudeer belangrijke data
Studie start (Geschat)
30 september 2026
Primaire voltooiing (Geschat)
30 september 2028
Studie voltooiing (Geschat)
30 september 2029
Studieregistratiedata
Eerst ingediend
3 juli 2026
Eerst ingediend dat voldeed aan de QC-criteria
15 juli 2026
Eerst geplaatst (Werkelijk)
21 juli 2026
Updates van studierecords
Laatste update geplaatst (Werkelijk)
30 juli 2026
Laatste update ingediend die voldeed aan QC-criteria
28 juli 2026
Laatst geverifieerd
1 juli 2026
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
- Synucleïnopathieën
- Hersenziekten
- Ziekten van het centrale zenuwstelsel
- Ziekten van het zenuwstelsel
- Tekenen en symptomen, spijsvertering
- Neurodegeneratieve ziekten
- Bewegingsstoornissen
- Parkinson-stoornissen
- Basale ganglia-ziekten
- Pathologische aandoeningen, tekenen en symptomen
- Tekenen en symptomen
- Ziekte van Parkinson
- Constipatie
Andere studie-ID-nummers
- 187/2025/Disp/AOUFe
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
NEE
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Nee
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
Nee
Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .