First in Human single ascending dose followed by multiple ascending doses in healthy volunteers.

Inclusion Criteria:

• Able to provide written informed consent
• Agree to no smoking or alcohol or illegal substance 48 hours prior to dosing
• Have a negative urine drug screen/alcohol breath test on admission to clinic
• Agree to use highly effective, double barrier contraception (both male and female partners) during the study and for 30 days following completion of dosing
• Females of childbearing potential must have a negative serum pregnancy test at Screening and a negative urine pregnancy test on Day -1
• Normal BMI except liver fibrosis participants (BMI 18 to ≤35 kg/m2)
• Be in general good health
• Clinical laboratory values within normal range
• Lung fibrosis participants-a diagnosis of lung fibrosis,
• Liver fibrosis participants-a diagnosis of liver fibrosis; some abnormal laboratory values will be acceptable for the following; platelet count, albumin, serum creatinine and neutrophil-leukocyte ration

Exclusion Criteria:

• Presence of any underlying physical or psychological medical condition that, in the opinion of the Investigator, would make it unlikely that the subject will complete the study per protocol
• History or presence of alcoholism or drug abuse within the 2 years prior to the first study drug administration, and unwillingness to be totally abstinent during the dosing period
• Blood donation or significant blood loss within 60 days prior to the first study drug administration
• Plasma donation within 7 days prior to the first study drug administration
• Administration of investigational product (IP) in another trial within 30 days prior to the first study drug administration, or five half-lives, whichever is longer
• Females who are pregnant or lactating
• Surgery within the past 3 months prior to the first study drug administration determined by the PI to be clinically relevant
• Failure to satisfy the PI of fitness to participate for any other reason
• Active infection or history of recurrent infections
• Active malignancy and history of malignancy in the past 5 years, with the exception of completely excised basal cell carcinoma or low grade cervical intraepithelial neoplasia
• Chronic obstructive pulmonary disease
• Antibiotic treatment within 3 months
• Chronic medical condition

Randomized, double-blind, placebo controlled