GAS-Hem Feasibility Study
A New Patient-centric Outcome Measure for Patients With Hemophilia: Testing the Feasibility of GAS-Hem in Pediatric, Adolescent and Adult Hemophilia A Patients
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
Study Type
Study Type
Enrollment (Actual)
Enrollment
Contacts and Locations
Study Locations
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British Columbia
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Vancouver, British Columbia, Canada, V6Z 1Y6
- St. Paul's Hospital
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Nova Scotia
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Halifax, Nova Scotia, Canada, B3H 3G1
- QEII Health Sciences Centre
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Illinois
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Peoria, Illinois, United States, 61615
- Bleeding and Clotting Disorders Institute
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Oregon
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Portland, Oregon, United States, 97239
- Oregon Health & Science University
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Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Participant has a documented diagnosis of hemophilia A
- Participant has documented clotting factor levels of 5% or less
- Participant is on a prescribed regimen of continuous prophylaxis. Continuous prophylaxis is defined by the World Federation of Hemophilia as "… the intent of treating for 52 weeks a year and receiving a minimum of an a priori defined frequency of infusions for at least 45 weeks (85%) of the year under consideration"
- Participant is willing and able to comply with the requirements of the protocol
- Participant is proficient in the English language to allow for use of the Standardized Goal Attainment Scaling menu for Hemophilia (GAS-Hem) tool.
Exclusion Criteria:
- Participants with an active Factor VIII (FVIII) inhibitory antibody (≥ 0.4 Bethesda units (BU) using the Nijmegen modification of the Bethesda assay or ≥ 0.6 BU using the Bethesda assay) at any time prior to screening
- Participant has been diagnosed with an inherited or acquired hemostatic defect other than hemophilia A (eg, qualitative platelet defect or von Willebrand's disease)
- Participant has participated in a clinical study involving a medicinal product or device within 30 days prior to enrollment or is scheduled to participate in a clinical study involving a medical product or device during the course of this study
- Participant is a family member or employee of the investigator
Study Plan
How is the study designed?
Design Details
Number of groups / cohorts
Cohorts and Interventions
Group / CohortGroup / Cohort |
Intervention / TreatmentIntervention / Treatment |
|---|---|
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Study participants
Participants with Hemophila A
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Licensed Factor VIII products.
Study is brand agnostic
Other Names:
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What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
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Change from baseline of the response to the Standardized Goal Attainment Scaling menu for Hemophilia (GAS-Hem) outcomes tool
Time Frame: Baseline; weeks 6 and 12
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The GAS-Hem is an online instrument for setting and tracking personalized goals related to hemophilia.
The GAS-Hem uses a 5-point scale to record the degree of attainment in relation to individually defined goal areas between an established baseline (scaled as -1) and follow-up time points (here, 6 weeks and 12 weeks).
The scale range is +2 (much better outcome) to -2 (much worse outcome), where 0 represents the desired outcome.
The process includes a facilitator to ensure that the outcome descriptions for the scale levels are reasonably attainable (not too hard or too easy) and represent roughly equivalent change between levels (ie scores).
The overall scoring formula results in a summary score of 50 when all goals are attained (individual goal attainment = 0).
Scores >50 indicate generally better than expected outcomes in goal attainment.
Scores <50 indicate that, overall, goals were not achieved.
The overall total scores range is dependent on the average number of goals.
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Baseline; weeks 6 and 12
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Change from baseline of the measurement of the responsiveness (sensitivity to change) of GAS-Hem compared with the SF-36
Time Frame: Baseline; weeks 6 and 12
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Comparison of outcomes on the Standardized Goal Attainment Scaling menu for Hemophilia (GAS-Hem) with the Medical Health Outcomes Study Health Survey Short Form-36 (SF-36) measures.
The analysis will compare effect sizes calculated for the GAS-Hem and the SF-36 using Cohen's d and standardized response means.
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Baseline; weeks 6 and 12
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Change from baseline of the measurement of the responsiveness (sensitivity to change) of GAS-Hem compared with the PedQL
Time Frame: Baseline; weeks 6 and 12
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Comparison of outcomes on the Standardized Goal Attainment Scaling menu for Hemophilia (GAS-Hem) with the Pediatric Quality of Life Inventory (PedsQL) measures.
The analysis will compare effect sizes calculated for the GAS-Hem and the PedsQL using Cohen's d and standardized response means.
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Baseline; weeks 6 and 12
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Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
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Change from baseline of Quality of life (QoL) outcomes: Medical Health Outcomes Study Health Survey Short Form-36 (SF-36)
Time Frame: Baseline; weeks 6 and 12
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The SF-36 is a 36 item survey of physical functioning, role limitations (both physical and emotional), bodily pain, general health vitality, social functioning and mental health administered to adults aged 19 and older.
The instrument measure health related quality of life on a scale of 0 (lowest level) to 100 (highest level).
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Baseline; weeks 6 and 12
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Change from baseline of Quality of life (QoL) outcomes: Pediatric Quality of Life Inventory Version 4.0 Generic Core Scale (PedsQL)
Time Frame: Baseline; weeks 6 and 12
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The PedsQL is a 23 item survey that assesses physical functioning, emotional functioning, social functioning, and school functioning in children and adolescents aged 5 to 18.
The PedsQL measures health related quality of life on a scale of 0 (lowest quality of life) to 100 (highest quality of life).
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Baseline; weeks 6 and 12
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Participant perception of the GAS-Hem as a useful means of identifying and monitoring change in relevant goal areas
Time Frame: Week 12
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Measured using a questionnaire to test acceptability and usefulness of Standardized Goal Attainment Scaling menu for Hemophilia (GAS-Hem) to patients, and where applicable to their parents or guardians.
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Week 12
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Clinician perception of the GAS-Hem as a useful means of monitoring clinical progress in patient identified goal areas
Time Frame: Week 12
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Measured using a questionnaire for clinicians designed to test their perception of the usefulness of Standardized Goal Attainment Scaling menu for Hemophilia (GAS-Hem) for monitoring clinical progress.
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Week 12
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Number and Location of Bleeds
Time Frame: Within six months prior starting study through week 12 in the study
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History of bleeding episodes in the six months prior to signing informed consent will be collected.
Participants will record details of each subsequent bleeding episode in the participant diary during the study.
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Within six months prior starting study through week 12 in the study
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Collaborators and Investigators
Sponsor
Sponsor
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- 001501
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
IPD Sharing Access Criteria
IPD Sharing Supporting Information Type
- STUDY_PROTOCOL
- SAP
- ICF
- CSR
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