Prospective Study of the Feedback From an Adherence Monitor on Asthma Control (INCA)

This study is currently recruiting participants. (see Contacts and Locations)
Verified July 2015 by Beaumont Hospital
Information provided by (Responsible Party):
Professor Richard Costello, Beaumont Hospital Identifier:
First received: February 7, 2012
Last updated: July 22, 2015
Last verified: July 2015

Inhaled medications are the mainstay of the therapeutic management of respiratory disorders. Considered by many to be 'simple' and 'easy' to use, clinicians are aware that inhalers are often improperly used. However, there is no tool that can detect and record errors in either the timing or the method dose administration

The investigators designed a device that makes an acoustic record each time an inhaler is used. Opening the device makes an acoustic file which is recorded, this file is "time-stamped" which means that the timing of drug administration is recorded. When the device is retrieved and acoustic analysis performed, the steps involved in using the inhaler can be determined. Hence, the subjects inhaler technique is assessed and errors in the inhaler use identified. Together this means that errors in inhaler technique and timing of use can be quantified.

In this study the investigators attached the device to a discus dry powder inhaler. In order to eliminate the behavioral component of adherence and identify the mechanical issues associated with effective inhaler use the investigators studied subjects who were already in Hospital and already prescribed a discus inhaler. The investigators hypothesized that the device would identify which errors in technique were the most common and that this would provide insight into how these errors might be eliminated.

Condition Intervention
Behavioral: Active Feedback

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator)
Primary Purpose: Health Services Research
Official Title: Prospective Study of the Feedback From an Adherence Monitor on Asthma Control

Further study details as provided by Beaumont Hospital:

Primary Outcome Measures:
  • Adherence rate [ Time Frame: at three months ] [ Designated as safety issue: No ]
    The rate of adherence at baseline and at the end of the study, which at the end of the 3 month of study will be assessed. The adherence will be the number of doses taken at the correct time. The correct time is twice a day, in a period not less than 6 hours between the last dose and the subsequent dose or at a time greater than 18 hours apart from the previous dose.

Secondary Outcome Measures:
  • Asthma quality of life score [ Time Frame: at 3 months ] [ Designated as safety issue: No ]
    The asthma quality of life score will be related to adherence, The baseline asthma quality of life score and the quality of life score at the end of three months will be subtracted and these will be correlated with the average rate of adherence over the three months.

Estimated Enrollment: 200
Study Start Date: February 2012
Estimated Study Completion Date: December 2015
Estimated Primary Completion Date: December 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Active Feedback
In this arm patients will receive monthly review and education on inhaler technique and use based on a computer download of their last month of inhaler use
Behavioral: Active Feedback
The inhaler will be fitted with a device that makes an audio recording of the inhaler use. This audio data will be downloaded to a computer program, analyzed for assessment of whether the steps involved in using the inhaler have been performed correctly. This information will be discussed with the patient.
Other Name: Feedback from a computer log of inhaler use
Placebo Comparator: Control
In this arm patients will be reviewed monthly, however will not have information from INCA device to tailor inhaler education.


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patients prescribed inhaled salmeterol/fluticasone

Exclusion Criteria:

  • Smokers
  • Allergy to salmeterol/fluticasone
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01529697

Contact: Richard W Costello, MD 3538093762
Contact: Elaine MacHale, RN MSc

Beaumont Hospital Recruiting
Dublin, Ireland, Dublin 9
Contact: Elaine MacHale, Rn MSc   
Contact: Imran Sulaiman, MD   
Sponsors and Collaborators
Beaumont Hospital
Principal Investigator: Richard Costello, MD Beaumont Hospital
  More Information

No publications provided

Responsible Party: Professor Richard Costello, Professor of Medicine, Beaumont Hospital Identifier: NCT01529697     History of Changes
Other Study ID Numbers: BeaumontH
Study First Received: February 7, 2012
Last Updated: July 22, 2015
Health Authority: Ireland: Irish Medicines Board

Keywords provided by Beaumont Hospital:
Inhaler use

Additional relevant MeSH terms:
Bronchial Diseases
Hypersensitivity, Immediate
Immune System Diseases
Lung Diseases
Lung Diseases, Obstructive
Respiratory Hypersensitivity
Respiratory Tract Diseases processed this record on August 30, 2015