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Prove of Concept Study, to Evaluate the Efficacy, Safety, and Tolerability of IBEROGAST in the Treatment of Bowel Troubles in Patients With Parkinson's Disease

Prove of Concept Study, to Evaluate the Efficacy, Safety, and Tolerability of IBEROGAST in the Treatment of Bowel Troubles in Patients With Parkinson's Disease

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02719496
Acronym
PHYTOPARK
Enrollment
45
Registered
2016-03-25
Start date
2016-04-01
Completion date
2018-04-01
Last updated
2026-09-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gastrointestinal Disorders in Parkinson's Disease

Brief summary

The main objective of this study is to evaluate the efficacy of STW5 Iberogast, over a 28-day period, for the treatment of constipation in parkinsonian patients suffering from gastrointestinal disorders.

Detailed description

Gastrointestinal disorders are the most common non-motor symptoms of Parkinson's disease (PD). They affect the entire intestinal tract and include excess saliva stasis (70% of patients), dysphagia (52%), gastroparesis (34-45%), and constipation. Gastroparesis participates in dyspepsia and abdominal pain. Constipation, as defined by the international standards criteria of Rome III, is present in 59% of PD patients and leads to functional impairment in 70% of patients. The mechanism underlying constipation is multifactorial and may include slow transit and defecation disorders secondary to anorectal dysfunction. Bowel disorders are present in the early stage of the disease and usually precede the onset of motor symptoms. They may result from lesions of the enteric nervous system, of the autonomic nervous system, and from probable alterations in gastrointestinal motility controlled by the central nervous system. The STW5 (Iberogast, Steigerwald, Germany) is a herbal agent composed of nine plant extracts, with prokinetic, antispasmodic, prosecretory, anti-inflammatory and anti-oxidant properties. These properties have been demonstrated in animals and in human pathology, in the treatment of dyspepsia and irritable bowel syndrome. It is the only phytotherapeutic agent which efficacy was demonstrated by randomized double-blind trials in these indications. In PD, the STW5 could improve constipation due to its prokinetic effects of the prosecretory enteric neurons. It could also improve dyspepsia and abdominal pain by its antispasmodic properties. We propose to study the efficacy and the safety of STW5 on bowel dysfunction in parkinsonian patients, especially on constipation.

Interventions

Sponsors

Nantes University Hospital
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
30 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Patient 30 to 80 years * Parkinson's disease according to the criteria of the United Kingdom Parkinson's Disease Society Brain Bank * Presence of constipation defined by the Rome III criteria Functional constipation * Social assured Patient * Patients with signed consent

Exclusion criteria

* Organic Affection colic * Constipation Drug * Other neurological disorder Parkinson's disease * Metabolic disease diabetes collagenoses * Severe renal or hepatic impairment * Pregnant or lactating women * Premenopausal women without contraceptive device effective * Regular and prolonged use of history (\> 12 months) of laxatives irritants * Use of oral laxative treatment in the two weeks before the start of treatment, and refusal to stop these treatment during the course of the study * Taking treatment antabuse * Cognitive impairment compromising understanding or application instructions * Patient already included in a research protocol * Minors * Nobody protected by law

Design outcomes

Primary

MeasureTime frameDescription
increasing the weekly number of exemptions of 3 in the last week of treatment compared with the reference week (Efficacity)28 daysevaluate the efficacy of Iberogast, over a 28-day period, for the treatment of constipation in parkinsonian patients suffering from gastrointestinal disorders.

Secondary

MeasureTime frameDescription
quality of evacuations28 daysweekly percentage defecation requiring thrusts, or accompanied by a sensation of incomplete rectal evacuation (agenda stool), shape and consistency of stools (Bristol scale).
Gastrointestinal Symptom Rating Scale (quality of life)28 daysthe impact of gastrointestinal symptoms on quality of life measured by the Gastrointestinal Symptom Rating Scale
Short Form Health Survey (SF36) (quality of life)28 daysthe impact of gastrointestinal symptoms on quality of life measured by the Short Form Health Survey (SF36)
use of rectal laxatives28 daysuse of rectal laxatives (stool diary)
clinical global improvement of gastrointestinal symptoms28 daysPatient Global Impression of Change
motor and non-motor symptoms28 daysMovement Disorder Society - Unified Parkinson Disease Rating Scale
Parkinson Disease Quotation ( PDQ39) (tolerability in parkinsonian)28 daysParkinson Disease Quotation ( PDQ39)
Incidence of Treatment-Emergent Adverse Events (Tolerability)28 daysadverse event reporting

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 15, 2026