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Herbal gut remedy put to the test for Parkinson's constipation

NCT ID NCT02719496

Symptom relief Sponsor: Nantes University Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Sep 14, 2026 · Last updated Sep 15, 2026 · Updated 1 time

Summary

Researchers are testing whether Iberogast, a herbal blend used for digestive complaints, can relieve constipation in people with Parkinson's disease. The trial enrolls 45 adults aged 30 to 80 who have Parkinson's disease and functional constipation. Participants take Iberogast for 28 days, and researchers track how many bowel movements they have each week along with stool consistency and quality of life.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
a herbal combination product called Iberogast
What this could lead to
If it works, Iberogast could offer a well-tolerated herbal option for the constipation that often troubles people with Parkinson's disease.
What could go wrong
This is a small Phase 2 trial of 45 people, so any benefit may not hold up in larger studies. Constipation in Parkinson's disease has many causes, and a herbal product may not address them all.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

45 people

The number who actually took part.

Start date

Apr 2016

Finished

Apr 2018

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

30 to 80 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

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

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Conditions

The condition(s) this trial relates to.

Parkinson disease

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Gastrointestinal disorders in Parkinson's disease

Contacts and locations

Locations

  • Tiphaine Rouaud

    Nantes, France

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