Baricitinib in the Treatment of Adults With Pyoderma Gangrenosum (PG)

Exclusion Criteria

• •Have history of malignancy or lymphoproliferative disease; or have signs or symptoms suggestive of possible lymphoproliferative disease, including lymphadenopathy or splenomegaly; or have active primary or recurrent malignant disease; or have been in remission from clinically significant malignancy for \< 5years.
• •Patients with cervical carcinoma in situ, basal cell carcinoma or squamous cell carcinomas who have had active disease within 3 years of screening for this study. Active, untreated, acute or chronic infection (such as untreated tuberculosis), or immunocompromised to an extent that such that participation in the study would pose an unacceptable risk to the subject. (Treated infections such as latent tuberculosis after completion of the appropriate therapy are not excluded.Patients currently on treatment for active TB with drugs such as strong OAT-3 inhibitors will be excluded from study)
• •Clinically serious infection or received intravenous antibiotics for an infection, within 4 weeks of randomization.
• •Active viral infection that, based on the investigator's clinical assessment, makes the subject and unsuitable candidate for the study.
• •Positive for human immunodeficiency virus, hepatitis B virus, or hepatitis C virus.
• •Symptomatic herpes zoster infection within 12 weeks of screening or recurrent or disseminated (even a single episode) herpes zoster.
• •Symptomatic herpes simplex at the time of randomization or disseminated (even a single episode) herpes simplex
• •History of disseminated opportunistic infections (e.g., listeriosis and histoplasmosis).
• •Have a history of venous thromboembolism (VTE), or are considered at high risk for VTE as deemed by the investigator, or have 2 or more of the following risk factors for VTE:
• •1. Aged \>65 years.
• •2. Body mass index (BMI) \>35 kg/m2.
• •3. Oral contraceptive use and current smoker.
• •Creatinine Clearance \<30 mL/min
• •Wound care debridement of any PG ulcer within 2 weeks.
• •Intralesional corticosteroids within 4 weeks of screening.
• •Previous exposure to a Janus kinase (JAK) inhibitor (ruxolitinib, tofacitinib, upadacitinib, filgotinib). For biologic therapies, the specific washout periods used will at least 4 weeks for anakinra, etanercept, infliximab, adalimumab, alefacept, golimumab, secukinumab, ixekizumab, risankizumab, guselkumab, tildrakizumab, canakinumab, ustekinumab and at least 24 weeks for rituximab or efalizumab.
• •Patients who are currently on immunosuppressive therapies or have not discontinued them for at least 4 weeks.
• •Clinically significant (per investigator's judgement) drug or alcohol abuse within the last 6 months preceding the Baseline Visit.
• •Have a live vaccine within 12 weeks prior to baseline or intend to have a live vaccine during the course of study.
• •Had any major surgery within 8 weeks prior to baseline or will require major surgery during the study, which in the opinion of the investigator would pose an unacceptable risk to the subject.
• •Recent (within past 6 months) cerebrovascular accident, myocardial infarction, coronary stenting. Uncontrolled hypertension - confirmed systolic blood pressure \>160 mmHg or diastolic blood pressure \>100 mm Hg.
• •Gastrointestinal (GI) perforation (other than appendicitis or penetrating injury), diverticulitis or significantly increased for GI perforation (within past 6 months) per investigator judgement; any condition could interfere with drug absorption including but not limited to short bowel syndrome.
• •Presence of significant uncontrolled respiratory, hepatic, renal, endocrine, hematologic, neurologic, or neuropsychiatric disorders, or abnormal laboratory screening values that, in the opinion of the investigator, pose an unacceptable risk to the subject if participating in the study or of interfering with the interpretation of the data.
• •Have clinical laboratory test results at screening that are outside the normal reference range of the population and are considered clinically significant, or have any of the following specific abnormalities: Neutrophil count \<1500 cells/µL, lymphocyte count \<500 cells/µL, platelet count \<100,000 cells/µL, aspartate transaminase (AST) or alanine aminotransferase (ALT) \> 2 times the upper limit of normal, hemoglobin \<10 g/dL for male and female subjects, eGFR\>60.
• •Women who are lactating or breastfeeding.
• •Have any other condition that precludes the subject from following and completing the protocol, in the opinion of the investigator.
• •Are investigator site personnel directly affiliated with this study and/or their immediate families (spouse, parent, child, or sibling).
• •Are currently enrolled in, or discontinued from a clinical trial involving an investigational product or non-approved use of a drug or device within the last 4 weeks or a period of at least 5 half-lives of the last administration of the drug, whichever is longer, or concurrently enrolled in any other type of medical research judged not to be scientifically or medically compatible with this study.
• •History of myocardial infarction, stroke and New York Heart Association Stage II/IV heart failure
• •Patients on concomitant medication with a Strong OAT-3 inhibitor for an existing condition will be excluded from study