This research study is looking for people with acne to test an investigational medication. Acne is a skin condition where the skin gets red pimples or bumps. The study will help us learn more about how this medication works for treating acne. To be part of the study, you must be at least 18 years old. You cannot join if you have heart disease, serious medical conditions like cancer, or if you are pregnant. People who have problems with alcohol or drugs, or who cannot understand the study, also cannot participate. The study will last for several weeks with a few visits to the research center. During these visits, you'll receive the investigational medication and doctors will check your health.

• The study is for adults aged 18 and over.
• Participants must attend multiple visits over several weeks.
• People with serious health conditions or who are pregnant cannot join.