Italian Translation and Validation of the GIDS-PD Scale for Parkinson's Disease

NCT ID: NCT07316751

Last Updated: 2026-02-11

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

RECRUITING

Total Enrollment

190 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-10-08

Study Completion Date

2028-11-30

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

This study aims to translate and validate the Gastrointestinal Dysfunction Scale for Parkinson's Disease (GIDS-PD) into Italian to enable the assessment of gastrointestinal symptoms in Italian-speaking patients with Parkinson's disease. The psychometric properties of the translated instrument will be evaluated through a multi-phase process involving translation/back-translation, pre-testing, and large-scale validation across multiple Italian centers

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Gastrointestinal dysfunction is a frequent and burdensome non-motor feature of Parkinson's disease, yet validated tools to measure these symptoms are not available for Italian-speaking patients. The study will will undergo three distinct phases, as specified by the MDS guidelines (International Parkinson and Movement Disorder Society, 2023): translation and back-translation (Phase I), pre-test (Phase II), large-scale validation test (Phase III).

* Phase I The translation and back-translation process will be conducted by two independent teams; one team will translate the content from English to Italian, followed by another team independently back-translating it from Italian to English (back-translation).
* Phase II Phase II will involve about 10 PD patients, as heterogeneous as possible, from different Italian regions, and 10 clinicians (PD nurses, neurologists, etc) examiners. The instrument, in this preliminary version, will be presented to a group of about 10 PD patients for the pre-test phase. This phase will be used to establish the basic psychometric properties of the scale and identify items that could potentially be culturally complex.
* Phase III Once the official translation has been approved, the instrument will be administered to a sample of PD patients, native Italian speakers, heterogeneous as far as possible in age and gender.

The final Italian version will be assessed for data quality, acceptability, construct validity, and reliability in a cohort of patients diagnosed with Parkinson's disease across multiple Italian centers.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

PARKINSON DISEASE (Disorder) Parkinson Disease

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

OTHER

Study Time Perspective

OTHER

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Age ≥18 years;
* Diagnosis of PD according to the Movement Disorder Society (MDS) diagnostic criteria (Postuma RB et al., 2015);
* Italian-native patients or patients that understand Italian correctly at least;
* Participants mentally and physically able to understand and sign the informed consent form.

Exclusion Criteria

* Persons in the terminal phase of disease;
* Persons with clinically relevant cognitive impairment;
* Persons diagnosed with Parkinsonism other than PD.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Fondazione I.R.C.C.S. Istituto Neurologico Carlo Besta

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Roberto Eleopra, MD

Role: PRINCIPAL_INVESTIGATOR

Fondazione IRCCS Istituto Neurologico Carlo Besta

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Fondazione IRCCS Istituto Neurologico Carlo Besta

Milan, , Italy

Site Status RECRUITING

Ospedale Universitario Luigi Sacco, Milano, Italia

Milan, , Italy

Site Status NOT_YET_RECRUITING

Unità Parkinson e Disturbi del Movimento, Dipartimento di Neuroscienze(DNS), Università di Padova, Padova, Italia

Padua, , Italy

Site Status NOT_YET_RECRUITING

Centro per le Malattie Neurodegenerative e l'Invecchiamento Cerebrale, Università degli Studi di Bari "Aldo Moro" presso la Pia Fondazione "Card. G. Panico", Tricase, Italia

Tricase, , Italy

Site Status NOT_YET_RECRUITING

Unità di Neurologia, Divisione Malattia di Parkinson e Disturbi del Movimento, Dipartimento di Neuroscienze, Biomedicina e Scienze del Movimento, Università di Verona, Italia

Verona, , Italy

Site Status NOT_YET_RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

Italy

Facility Contacts

Find local site contact details for specific facilities participating in the trial.

Roberto Eleopra, MD

Role: primary

+ 39 02.2394

Leonardo Pantoni, MD

Role: primary

+ 39 02.2394

Angelo Antonini

Role: primary

Daniele Urso, MD

Role: primary

+ 39 02.2394

Michele Tinazzi, MD

Role: primary

References

Explore related publications, articles, or registry entries linked to this study.

Terwee CB, Bot SD, de Boer MR, van der Windt DA, Knol DL, Dekker J, Bouter LM, de Vet HC. Quality criteria were proposed for measurement properties of health status questionnaires. J Clin Epidemiol. 2007 Jan;60(1):34-42. doi: 10.1016/j.jclinepi.2006.03.012. Epub 2006 Aug 24.

Reference Type BACKGROUND
PMID: 17161752 (View on PubMed)

Postuma RB, Berg D, Stern M, Poewe W, Olanow CW, Oertel W, Obeso J, Marek K, Litvan I, Lang AE, Halliday G, Goetz CG, Gasser T, Dubois B, Chan P, Bloem BR, Adler CH, Deuschl G. MDS clinical diagnostic criteria for Parkinson's disease. Mov Disord. 2015 Oct;30(12):1591-601. doi: 10.1002/mds.26424.

Reference Type BACKGROUND
PMID: 26474316 (View on PubMed)

Leta V, Klingelhoefer L, Longardner K, Campagnolo M, Levent HC, Aureli F, Metta V, Bhidayasiri R, Chung-Faye G, Falup-Pecurariu C, Stocchi F, Jenner P, Warnecke T, Ray Chaudhuri K; International Parkinson and Movement Disorders Society Non-Motor Parkinson's Disease Study Group. Gastrointestinal barriers to levodopa transport and absorption in Parkinson's disease. Eur J Neurol. 2023 May;30(5):1465-1480. doi: 10.1111/ene.15734. Epub 2023 Mar 7.

Reference Type BACKGROUND
PMID: 36757008 (View on PubMed)

Metta V, Leta V, Mrudula KR, Prashanth LK, Goyal V, Borgohain R, Chung-Faye G, Chaudhuri KR. Gastrointestinal dysfunction in Parkinson's disease: molecular pathology and implications of gut microbiome, probiotics, and fecal microbiota transplantation. J Neurol. 2022 Mar;269(3):1154-1163. doi: 10.1007/s00415-021-10567-w. Epub 2021 Apr 21.

Reference Type BACKGROUND
PMID: 33881598 (View on PubMed)

Maxwell SE, Kelley K, Rausch JR. Sample size planning for statistical power and accuracy in parameter estimation. Annu Rev Psychol. 2008;59:537-63. doi: 10.1146/annurev.psych.59.103006.093735.

Reference Type BACKGROUND
PMID: 17937603 (View on PubMed)

Camacho M, Greenland JC, Williams-Gray CH. The Gastrointestinal Dysfunction Scale for Parkinson's Disease. Mov Disord. 2021 Oct;36(10):2358-2366. doi: 10.1002/mds.28675. Epub 2021 Jun 16.

Reference Type BACKGROUND
PMID: 34133059 (View on PubMed)

Bhidayasiri R, Phuenpathom W, Tan AH, Leta V, Phumphid S, Chaudhuri KR, Pal PK. Management of dysphagia and gastroparesis in Parkinson's disease in real-world clinical practice - Balancing pharmacological and non-pharmacological approaches. Front Aging Neurosci. 2022 Aug 11;14:979826. doi: 10.3389/fnagi.2022.979826. eCollection 2022.

Reference Type BACKGROUND
PMID: 36034128 (View on PubMed)

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

GIDS-PD_ITA

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.