Provided are novel compounds of Formula :pharmaceutically acceptable salts thereof, and pharmaceutical compositions thereof, which are useful in the treatment of diseases and disorders mediated by ROR\u03b3. The device has an elongated cylindrical body made of polymer foam, with a number of deep channels equally spaced from each other, coiled around the length of the cylindrical body of the pig, beginning close to one end of the body and ending close to the other end. The test structure may alternatively include a gate stack that is biased by a bias to maintain the gate stack in an on state during VC inspection.