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Development and Validation of a Disease Specific PROM to Assess Abdominal Involvement in Patients With CF (CFAbd-Score)

Evaluation and Validation of a New Questionnaire to Identify and Quantify Abdominal Symptoms in Patients With Cystic Fibrosis Following FDA Guidelines: the CF Abd-Score (Primarily Named JenAbdomen-CF Score)

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03052283
Acronym
CFAbd-Score
Enrollment
2000
Registered
2017-02-14
Start date
2017-01-26
Completion date
2027-12-31
Last updated
2023-04-04

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

Conditions

Cystic Fibrosis

Keywords

Cystic fibrosis, Abdomen, Pancreas, Liver, Gut, Symptom Score, Patient reported outcome measure (PROM), diabetes, CFTR-modulator, Tricafta, Kaftrio

Brief summary

Development, validation and evaluation of a new multimodal questionnaire to assess and quantify the abdominal involvement in patients with the inherited life shortening multi-organ disease Cystic fibrosis. In the stepwhise development of the patient reported outcome measures (PROM) repeadedly, CF-patients, their families as well as professionals working in different fields of CF-care will be included.

Detailed description

Development of a multimodal questionnaire considering the FDA guidelines for development of a PROM, the CFAbd-Score * Evaluation of reliability of the questionnaire by examining internal consistency and construct validity * Evaluation of reproducibility of the questionnaire by re-testing of patients * Assessment of cross-generational applicability of the questionnaire by sub-scoring of age groups * Evaluation of the responsiveness of the score by comparison with age-matched healthy controls * Assessment of putative relationships of abdominal symptoms with faecal inflammatory markers * Assessment of applicability of the questionnaire in other CF centers * Transfer the CFAbd-Score to other countries and languages Development and validation of a CF-specific tool for daily assessment of abdominal symptoms (patient diary), the CFAbd-day2day Development and validation of a CF-specific tool for assessment of abdominal symptoms in children \< 12 years of age, the CFAbd-kid

Interventions

DIAGNOSTIC_TESTQuestionnaire Patient Reported Outcome Measure (PROM)

non-interventional

Sponsors

University of Jena
CollaboratorOTHER
Medizinische Hochschule Brandenburg Theodor Fontane
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Healthy volunteers
Yes

Inclusion criteria

CF cohort: Diagnosis of CF determined by * a sweat chloride of \>60 mEq/L and/or * detection of 2 disease causing CFTR mutations with evidence of organ involvement. Healthy controls: * Age-matched

Exclusion criteria

CF cohort: * Lacking ability to cooperate of patients /their families, respectively Healthy controls: * Other diseases causing abdominal symptoms (Inflammatory bowel disease (IBD), alpha 1 antitrypsin deficiency, celiac disease, food allergy, gastroenteritis, etc.)

Design outcomes

Primary

MeasureTime frameDescription
Development and evaluation of the CFAbd-Score (initially named JenAbdomen CF-Score), a CF-specific PROM following FDA recommendations7 yearsEvaluation and validation of the CFAbd-Score based on a CF patient-reported outcome measure (PROM) that includes all relevant gastrointestinal symptoms and their impact on subjective quality of life
Development and evaluation of a diary for assessment and quantification of abdominal symptoms, a CF-specific PROM following FDA recommendations7

Secondary

MeasureTime frameDescription
Abdominal symptoms in cystic fibrosis and their relation to genotype, history, clinical and laboratory findings7 yearsrelating CFAbd-Scores to history, clinical- and laboratory findings
Assessing the Relation of Ultrasound Findings and Abdominal Symptoms obtained with the CFAbd-Score in Cystic Fibrosis Patients3 yearsabdominal ultrasound
Effects of a new therapy with CFTR-modulator on abdominal symtoms, quantified with the CFAbd-Score7 yearsAssessing the CFAbd-Score´s sensitivity to identify and quantify changes due to effective therapeutic interventions, following FDA-guidelines for validation of a PROM

Countries

Germany

Contacts

Primary ContactJochen G Mainz, Prof. MD
jochen.mainz@mhb-fontane.de+493381411803
Backup ContactFranziska Duckstein, MA
f.duckstein@klinikum-brandenburg.de+493381411841

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 2, 2026