A Study of Skin and Systemic Biomarkers In Patients With Active Cutaneous Lupus Erythematosus And In Healthy Volunteers

This is a Phase 0 multi-center and longitudinal study of biomarkers and clinical parameters
in patients with lupus erythematosus (LE). Approximately 80 participants (20 healthy
participants and 60 patients with LE) will be enrolled. This will include 30 with Discoid
Lupus Erythematosus/Subacute Cutaneous Lupus Erythematosus (DLE/SCLE) without Systemic Lupus
Erythematosus (SLE), and 30 with DLE/SCLE with SLE. All patients with LE will continue to be
managed by their personal physicians per their standard-of-care. Study participants will
undergo interventional procedures that include collection of urine, blood samples and skin
biopsy. There will be a single sample collection timepoint for healthy participants and two
sample collection timepoints for LE patients, separated by approximately 12 weeks. A blood
sample for genomic analysis will be collected for research purposes from patients who
provide consent and where local regulations permit. The data obtained in this study will be
used in the evaluation of new therapies for lupus and may help in developing new treatments.
Safety evaluations will include assessment of adverse events, clinical laboratory tests,
vital signs, and physical examinations. The total duration of study participation will be
approximately 11 days for healthy participants and 95 days for patients with LE.

Inclusion Criteria:

- Have Discoid Lupus Erythematosus (DLE) or Subacute Cutaneous Lupus Erythematosus
(SCLE) with or without a diagnosis of Systemic Lupus Erythematosus (SLE)

- Active DLE or active SCLE confirmed by histological analysis (for participants with
DLE or SCLE without SLE)

- Confirmed diagnosis of SLE using American College of Rheumatology criteria and has
current or historical positive antinuclear antibodies (ANA) or anti double-stranded
deoxyribonucleic acid (anti-dsDNA) (for participants with DLE or SCLE with SLE)

- An active skin lesion that can be biopsied (for participants with lupus
erythematosus)

Exclusion Criteria:

- Known or thought to have a diagnosis of drug-induced lupus

- An active skin disease that is not a manifestation of lupus erythematosus

- Has an acute cutaneous lupus erythematosus rash only

- If taking anti-malarial therapy has not been on a stable dose for at least 8 weeks
before Day 1

- Participants treated with greater than 10mg/day of prednisone therapy or equivalent
in the last 4 weeks prior to Day 1

- Positive serology for human immunodeficiency virus antibody, hepatitis B virus, or
hepatitis C virus