NCT04984304

Brief Summary

Chronic cough is a very unpleasant symptom, significantly reduces the patient's quality of life, and bothers the neighborhood. A very common cause or co-factor of chronic cough is extraesophageal reflux (EER). The aim of the project is the precise diagnosis of EER in patients with chronic cough (in patients with a simultaneously diagnosed allergic cause and without it).

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
150

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jun 2021

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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

First Submitted

Initial submission to the registry

June 1, 2021

Completed
Same day until next milestone

Study Start

First participant enrolled

June 1, 2021

Completed
2 months until next milestone

First Posted

Study publicly available on registry

July 30, 2021

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2024

Completed
Last Updated

January 18, 2024

Status Verified

January 1, 2024

Enrollment Period

2.9 years

First QC Date

June 1, 2021

Last Update Submit

January 17, 2024

Conditions

Keywords

chronic coughextraesophageal refluxlaryngopharyngeal refluxallergyasthma

Outcome Measures

Primary Outcomes (1)

  • EER severity and type and allergy

    Comparison of extraesophageal reflux severity and type in patients with chronic cough with or without concomitant allergic cause of cough. The number of EER events on impedance and improvement of RSA - Short version scale (Reflux Sign Assessment - Short version) will be observed and compared with improvement of objective measurements and clinical findings.

    6 months

Secondary Outcomes (4)

  • Diet and life-style modifications and asthma

    6 months

  • Allergic diseases and chronic cough with concomitant extraesophageal reflux

    6 months

  • Individual phenotypes of bronchial asthma in patients with EER

    6 months

  • Asthma severity and control

    6 months

Study Arms (2)

Mild cough

EXPERIMENTAL

Mild cough only slightly worsening the quality of life (VAS 1-3)

Behavioral: Lifestyle modifications and Antireflux diet

Moderate and severe cough

EXPERIMENTAL

Moderate and severe cough that significantly worsen the quality of life (VAS 4-10)

Diagnostic Test: Extraesophageal reflux diagnostic

Interventions

Patients in Arm 1 - mild cough only slightly worsening the quality of life (VAS 1-3) will undergo treatment using lifestyle modifications and an Antireflux diet for 3 months.

Mild cough

Patients in Arm 2 - moderate and severe cough that significantly worsen the quality of life (VAS 4-10) will undergo extraesophageal reflux diagnostics consisting of esophageal 24-hour pH/Impedance Reflux Monitoring and peptest study on fasting

Moderate and severe cough

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • age 18-80 years
  • patients with chronic cough (cough that lasts 3 months or longer)
  • consent with participation in the study

You may not qualify if:

  • patients using ACE inhibitors or Angiotensin II receptor blockers
  • patients with head and neck cancer
  • patients after radiotherapy in the head and neck area
  • patients with airway or lung cancer
  • patients with chronic lung disease except for bronchial asthma (COPD, interstitial lung disease, bronchiectasis, respiratory bronchiolitis)
  • patients with chronic rhinosinusitis

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Hospital Ostrava

Ostrava, Moravian-Silesian Region, 70852, Czechia

RECRUITING

Related Publications (4)

  • Kahrilas PJ, Altman KW, Chang AB, Field SK, Harding SM, Lane AP, Lim K, McGarvey L, Smith J, Irwin RS; CHEST Expert Cough Panel. Chronic Cough Due to Gastroesophageal Reflux in Adults: CHEST Guideline and Expert Panel Report. Chest. 2016 Dec;150(6):1341-1360. doi: 10.1016/j.chest.2016.08.1458. Epub 2016 Sep 7.

    PMID: 27614002BACKGROUND
  • Kanemitsu Y, Kurokawa R, Takeda N, Takemura M, Fukumitsu K, Asano T, Yap J, Suzuki M, Fukuda S, Ohkubo H, Maeno K, Ito Y, Oguri T, Niimi A. Clinical impact of gastroesophageal reflux disease in patients with subacute/chronic cough. Allergol Int. 2019 Oct;68(4):478-485. doi: 10.1016/j.alit.2019.04.011. Epub 2019 Jun 7.

    PMID: 31182314BACKGROUND
  • Shirai T, Mikamo M, Tsuchiya T, Shishido Y, Akita T, Morita S, Asada K, Fujii M, Suda T. Real-world effect of gastroesophageal reflux disease on cough-related quality of life and disease status in asthma and COPD. Allergol Int. 2015 Jan;64(1):79-83. doi: 10.1016/j.alit.2014.08.001. Epub 2014 Oct 22.

    PMID: 25605530BACKGROUND
  • Herregods TVK, Pauwels A, Jafari J, Sifrim D, Bredenoord AJ, Tack J, Smout AJPM. Determinants of reflux-induced chronic cough. Gut. 2017 Dec;66(12):2057-2062. doi: 10.1136/gutjnl-2017-313721. Epub 2017 Mar 15.

    PMID: 28298354BACKGROUND

MeSH Terms

Conditions

Chronic CoughLaryngopharyngeal RefluxHypersensitivityAsthma

Condition Hierarchy (Ancestors)

CoughRespiration DisordersRespiratory Tract DiseasesSigns and Symptoms, RespiratorySigns and SymptomsPathological Conditions, Signs and SymptomsGastroesophageal RefluxEsophageal Motility DisordersDeglutition DisordersEsophageal DiseasesGastrointestinal DiseasesDigestive System DiseasesLaryngeal DiseasesImmune System DiseasesBronchial DiseasesLung Diseases, ObstructiveLung DiseasesRespiratory HypersensitivityHypersensitivity, Immediate

Study Officials

  • Viktória Hránková, MD,PhD,FESO

    University Hospital Ostrava

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Jiří Hynčica

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 1, 2021

First Posted

July 30, 2021

Study Start

June 1, 2021

Primary Completion

May 1, 2024

Study Completion

May 1, 2024

Last Updated

January 18, 2024

Record last verified: 2024-01

Data Sharing

IPD Sharing
Will not share

Locations