Clinical Trial Details
— Status: Completed
Administrative data
NCT number |
NCT05628714 |
Other study ID # |
2018-0624 |
Secondary ID |
|
Status |
Completed |
Phase |
|
First received |
|
Last updated |
|
Start date |
January 1, 2018 |
Est. completion date |
July 30, 2019 |
Study information
Verified date |
November 2022 |
Source |
Maastricht University Medical Center |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Observational
|
Clinical Trial Summary
A patient decision aid (PDA) was tested in a population of patients with superficial basal
cell carcinoma. This study evaluates whether the use of a PDA improved outcomes like
decisional conflict and knowledge.
Description:
Background Patients with a superficial basal cell carcinoma (sBCC) can choose between several
treatment options with specific advantages and disadvantages. A patient decision aid (PDA)
might facilitate a personalized decision.
Objectives This study evaluates whether the use of a PDA results in a decreased level of
decisional conflict, improved satisfaction with the treatment decision, and increased
knowledge on prevention, recognition of BCC, and treatment options.
Methods A prospective multicentre pre- and post-implementation study was performed amongst
patients with a newly diagnosed sBCC comparing a group that did not use the PDA (control
group) with a group that did (PDA group). The primary outcome was the level of decisional
conflict measured by the total mean score on the 'decisional conflict scale' (DCS) directly
before treatment. Higher scores correspond with higher levels of decisional conflict (scale
0-100). Knowledge of disease and treatment options was evaluated by using a questionnaire.
Results Questionnaires were completed by 103 patients in the control group and 109 patients
in the PDA group. The mean total score on the DCS in the control group was 22.78 (SD 14.76)
compared to 22.34 (SD 14.54) in the PDA group. The adjusted mean difference was -0.39 (95% CI
-4.47-3.70, p=0.851). Cohen's effect size for the total score on the DCS was 0.03. Use of the
PDA resulted in a significant increase of knowledge on recognition of BCC (p<0.001) and
treatment options for sBCC (p=0.005). According to exploratory subgroup analyses the
unadjusted mean difference in DCS score was higher in patients with sBCC in the head and neck
area (-4.53, p=0.378), patients without a history of BCC (-3.76, p=0.251), and patients with
higher educational level (-4.71, p=0.196).
Conclusion In the total study population with newly diagnosed sBCC, use of a PDA increased
knowledge on relevant issues, but had no significant effect on the level of decisional
conflict when compared with a control group. Exploratory subgroup analyses suggest that
specific subgroups of patients may benefit from the use of a PDA, but these results need to
be verified in larger studies.