D-0120 is being tested in combination with Allopurinol in adult subjects with Gout.

Inclusion Criteria:

• Gout subjects meeting 2015 ACR/EULAR Gout Classification Criteria with inadequate urate-lowering response
• Subject has had at least 2 gout flares in the previous 12 months.
• Body Mass Index (BMI) between 18.0 and 45.0 kg/m2 (inclusive).
• Male and Female Subjects must agree to abstain or use effective contraception methods from the time of signing ICF and for the duration of study participation through 30 days after the last dose of study drug.
• Subjects must have adequate clinical laboratory and ECG results as assessed by the Principal Investigator

Exclusion Criteria:

• Subjects with significant comorbidities, inadequate lab function, current (and within the past 5 years) diagnosis of cancer or any condition that, in the judgment of the investigator, would place him/her at undue risk, or potentially compromise the results or interpretation of the study.
• Women who are pregnant or breastfeeding