Trial Outcomes & Findings for Collaborative Connected Health (CCH) for PCORI (NCT NCT02358135)

Collaborative Connected Health (CCH) for PCORI

Participants are asked to complete self-administered Psoriasis Area and Severity Index (SA-PASI). SA-PASI combines the assessment of lesion severity (erythema, induration, and scale) and the affected areas into a single score between 0 (no disease) to 72 (maximal disease). The primary outcome of the study was the mean percent improvement in SA-PASI averaged over three, six, nine, and 12 months. The percent improvement in SA-PASI was defined as the difference in SA-PASI scores between the baseline and each of the follow-up visits divided by the SA-PASI score from the baseline visit.

Quality of life will be assessed using dermatology-specific, quality of life instruments, Skindex-16 and Dermatology Life Quality Index (DLQI). Scores for these assessments will be compared between patients randomized to the CCH model and in-person care. Skindex-16 is a validated and reliable instrument that comprehensively captures the effects of skin disease on health-related quality of life. It discriminates among patients with different effects and is responsive to clinical changes over time. Skindex-16 scores range from 0 (no effect) to 100 (effect experienced all the time), and the responses are aggregated in symptoms, emotions, and functioning subscales. The Dermatology Life Quality Index (DLQI) is another validated dermatology-specific quality-of-life instrument that has been used in many psoriasis trials. DLQI scores range from 0 to 30, with higher scores indicating more severe impact on quality of life.

Access to care is an overall term to capture the transportation to care factors including total distance traveled to see a provider (round-trip driving distance from patient's home to provider's office multiplied by the number of in-person visits during the study period).

Participants will be assessed for depression severity using the Patient Health Questionnaire (PHQ), a validated, self-administered diagnostic instrument for common mental disorders. The PHQ-9 score can range from 0 to 27 with 0 = "No" depression and 27 = "Severe" depression. The PHQ is a validated, self-administered version of the Primary Care Evaluation of Mental Disorders (PRIME-MD) diagnostic instrument for common mental disorders. The PHQ-9 is the depression module, which scores each of the Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV) depression criteria as "0" (not at all) to "3" (nearly every day). A PHQ-9 score of 10 or greater has 89% sensitivity and 88% specificity for major depression. PHQ-9 scores of 5, 10, 15, and 20 represented mild, moderate, moderately severe, and severe depression, respectively. PHQ-9 is a validated tool for diagnosis of depression and monitoring response to interventions.

Body surface area (BSA) involvement and patient global assessment (PtGA) will be compared between the patients randomized to the CCH model and the in-person care. The BSA assessment is a well-established, validated measure used by psoriasis patients to report percent body surface affected by psoriasis in numerous prior studies. BSA ranges from 0% (no involvement) to 100% (complete body surface affected). The PtGA is a validated instrument that measures the overall psoriasis severity from the patients' perspective.40 PtGA is an ordinal six-point scale ranging from 0 (clear) to 5 (severe).

Access to care is an overall term to capture transportation factors including time taken to be seen by a provider. me. Wait time is measured by calculating roundtrip transportation time plus in-office waiting time multiplied by the number of in-person visits during the study period.