A Study of Olumacostat Glasaretil Gel in Subjects With Acne Vulgaris

Inclusion Criteria:

- Signed informed consent and, for subjects under legal adult age, signed assent

- Age ≥ 9 years

- Clinical diagnosis of facial acne vulgaris defined as:

- At least 20 inflammatory lesions, and

- At least 20 non-inflammatory lesions, and

- Investigator Global Assessment of 3 or greater

Exclusion Criteria:

- Active cystic acne or acne conglobata, acne fulminans, and secondary acne

- Two or more active nodulocystic lesions on the face

- Clinically significant abnormal laboratory or ECG result

- Subjects who are actively participating in an experimental therapy study or who have
received experimental therapy within 30 days or 5 half-lives (whichever is longer) of
the Baseline visit

- Treatment with over-the-counter topical medications for the treatment of acne vulgaris
including benzoyl peroxide, topical anti-inflammatory medications, corticosteroids,
α-hydroxy/glycolic acid on the face within 2 weeks prior to Baseline

- Treatment with systemic antibiotics or systemic anti-acne drugs or topical retinoid
within 4 weeks prior to Baseline

- Treatment with a new hormonal therapy or dose change to existing hormonal therapy
within 12 weeks prior to Baseline (hormonal therapies include, but are not limited to,
estrogenic and progestational agents such as birth control pills).

- Use of androgen receptor blockers (such as spironolactone or flutamide) within 2 weeks
prior to Baseline.

- Oral retinoid use (e.g., isotretinoin) within 12 months prior to Baseline or vitamin A
supplements greater than 10,000 units/day within 6 months prior to Baseline

- Facial procedures (chemical or laser peel, microdermabrasion, etc.) within the past 8
weeks