NCT04569656

Brief Summary

Chronic constipation is the most common gastrointestinal symptom reported by PD patients; it could be one of the manifestations of disease onset. PHGG fiber is extracted from a herbaceous plant (Cyamopsis Tetra-Gonolobus, family: Leguminosae) of Indian origin: it produces 5/9 pods containing seeds which produce the famous guar gum, that is a natural polysaccharide.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
34

participants targeted

Target at P25-P50 for phase_2 parkinson-disease

Timeline
Completed

Started Feb 2016

Shorter than P25 for phase_2 parkinson-disease

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 2, 2016

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 20, 2016

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 20, 2016

Completed
3.8 years until next milestone

First Submitted

Initial submission to the registry

September 24, 2020

Completed
6 days until next milestone

First Posted

Study publicly available on registry

September 30, 2020

Completed
Last Updated

April 10, 2024

Status Verified

October 1, 2022

Enrollment Period

11 months

First QC Date

September 24, 2020

Last Update Submit

April 9, 2024

Conditions

Outcome Measures

Primary Outcomes (3)

  • to investigate the effectiveness of the preparation of PHGG and sodium hyaluronate on symptoms of PD patients with chronic constipation

    using the scale the Patient Assessment of Constipation-Symptoms PAC-SYM The 12-item questionnaire is divided into three symptom subscales: abdominal (four items); rectal (three items); and stool (five items). Items are scored on 5-point Likert scales, with scores ranging from 0 to 4 (0 = 'symptom absent', 1 = 'mild', 2 = 'moderate', 3 = 'severe' and 4 = 'very severe'). A mean total score in the range of 0-4 is generated by dividing the total score by the number of questions completed; the lower the total score, the lower the symptom burden.

    trough study completation, an average of 6 weeks

  • to investigate the effectiveness of the preparation of PHGG and sodium hyaluronate on symptoms of PD patients with chronic constipation

    Bristol Stool Chart

    trough study completation, an average of 6 weeks

  • to investigate the effectiveness of the preparation of PHGG and sodium hyaluronate on quality of life of PD patients with chronic constipation

    using Patient Assessment of Constipation Quality of Life PAC-QOL subcategorized to 4 items on physical discomfort, 8 items on psychosocial discomfort, 5 items on treatment satisfaction, and finally 11 items on worries and discomfort. Response choice is a Likert scale from 0 to 4. Higher scores mean higher negative effects on quality of life. Items 25, 26, 27, and 28 should be scored reversed because they are positive questions.

    trough study completation, an average of 6 weeks

Secondary Outcomes (3)

  • To investigate compliance to treatment.

    through study completion, an average of 6 weeks

  • To investigate acceptance to treatment.

    through study completion, an average of 6 weeks

  • To investigate adherence to treatment.

    through study completion, an average of 6 weeks

Study Arms (1)

treatment

EXPERIMENTAL

6 week treatment with Stick pack 30 ml containing PHGG 5 gr e Hyaluronic Acid 200 mg

Drug: hydrolyzed guar gum

Interventions

treatment with Stick pack 30 ml containing PHGG 5 gr e Hyaluronic Acid 200 mg for 6 weeks

Also known as: PHGG
treatment

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Idiopathic PD according to UK PDS Brain Bank Clinical Diagnostic Criteria.
  • Chronic constipation according to Roma III criteria for chronic functional constipation lasting from at least 6 months.
  • Absence of dementia.
  • Patients who are able to understand and sign the informed consent for participation in the study

You may not qualify if:

  • People who suffer from other comorbidities that could interfere with the results of the study according to the investigator.
  • People who are not able to provide reliable answers to the questionnaire according to the opinion of the investigator.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

IRCCS San Raffaele

Roma, 00163, Italy

Location

Related Publications (1)

  • Vacca L, Proietti S, Bravi D, Radicati FG, Stocchi F. Effectiveness of an herbaceous derivatives, PHGG, plus sodium hyaluronate in the treatment of chronic constipation in patients with Parkinson's disease: a pilot study. Neurol Sci. 2022 Feb;43(2):1055-1059. doi: 10.1007/s10072-021-05342-8. Epub 2021 Jun 4.

MeSH Terms

Conditions

Parkinson Disease

Condition Hierarchy (Ancestors)

Parkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative Diseases

Study Officials

  • fabrizio stocchi, md phd

    IRCCS San Raffaele

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 24, 2020

First Posted

September 30, 2020

Study Start

February 2, 2016

Primary Completion

December 20, 2016

Study Completion

December 20, 2016

Last Updated

April 10, 2024

Record last verified: 2022-10

Data Sharing

IPD Sharing
Will share

after the end of study

Shared Documents
STUDY PROTOCOL
Time Frame
after the study
Access Criteria
request by email

Locations