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RECRUITINGOBSERVATIONAL

Psorcast Mobile Study

Psorcast Study: A Smartphone-based Study of Psoriasis and Psoriatic Arthritis

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

The purpose of this study is to understand variation in the symptoms of psoriasis and psoriatic arthritis using simple, scalable smartphone-based measurements. This study uses an iPhone app to record these symptoms through questionnaires and sensors.

Who May Be Eligible (Plain English)

Who May Qualify: - Adult age 18 and older who consent to participate in the study - Own a compatible iPhone or iPod Touch device running iOS 12.2 or above - Be able to read and understand an official language of the country of participation Who Should NOT Join This Trial: - Age 17 years or younger - Not a resident of the a country where the app is approved for use - Not have a personal (i.e., not shared) iPhone (4s or newer running iOS 8.0 or later) - Not be able to read and understand an official language of the country of participation Always talk to your doctor about whether this trial is right for you.

Original Eligibility Criteria

View original clinical language
Inclusion Criteria: * Adult age 18 and older who consent to participate in the study * Own a compatible iPhone or iPod Touch device running iOS 12.2 or above * Be able to read and understand an official language of the country of participation Exclusion Criteria: * Age 17 years or younger * Not a resident of the a country where the app is approved for use * Not have a personal (i.e., not shared) iPhone (4s or newer running iOS 8.0 or later) * Not be able to read and understand an official language of the country of participation

Treatments Being Tested

BEHAVIORAL

Participant self-assessment surveys

At enrollment, participants are asked to complete a baseline health history, family history, and a participant-reported symptom inventory.

BEHAVIORAL

Psoriasis Draw

Participants are asked to draw the location and size of psoriasis they currently experience. Participants are provided a body template onto which they can draw on their screen. Investigators estimate the percentage of body area affected.

BEHAVIORAL

Psoriasis Area Photo

Participants are asked to take a picture of a representative psoriasis plaque and indicate the location of the plaque. They are asked to take a picture of the same area over time. The investigators are developing computer vision algorithms to assess the plaque.

BEHAVIORAL

Finger and Toe Photos

Participants are asked to take pictures of the back of each hand and the top of each foot. These photos can be used to assess finger and toe swelling as well as psoriatic nail involvement. The investigators are developing computer vision algorithms to assess psoriatic nail involvement and digit swelling.

BEHAVIORAL

Digital Jar Open

Participants are asked to internally and externally rotate the phone as it rests on a flat surface. Participants perform each direction (internal and external) and each arm (left and right) in turn. Gyroscope sensors measure the degree of rotation.

BEHAVIORAL

30 Second Walk

Participants are asked to walk in a straight line for 30 seconds. Gait is measured by gyroscope and accelerometer sensors. The investigators examine step-dependent and sequence-dependent features from these sensors. The investigators apply feature selection and classifier algorithms to analyze these data.

OTHER

Psorcast mobile application

Participants complete all described behavioral interventions via a dedicated iPhone app, Psorcast.

Locations (1)

Sage Bionetworks
Seattle, Washington, United States