A Long-term Safety and Efficacy Study of N-Acetyl-GED-0507-34-LEVO Gel 5%, in Subjects With Acne Vulgaris (GEDACNE-LT)

Exclusion Criteria

• •Acne:
• •* Patients with generalized or localized acne forms other than acne vulgaris, e.g., acne conglobata, acne fulminans, acne rosacea, secondary acne (chloracne, drug-induced acne, etc), nodule-cystic acne
• •* Patients with acne requiring systemic treatment.
• •Beard and facial/body hair, tattoos:
• •* Patients with a beard or who intend to grow a beard and/or to perform a facial tattoo during the study
• •* Patients with facial hair or facial tattoos that could interfere with study assessments in the investigator's opinion
• •* For patients with truncal acne: body hair, tattoos (or who intend to perform them) on the shoulders, upper back or upper anterior chest accessible to self-application of study medication by the patient (evaluable area) that may interfere with the study assessments in the investigator's opinion.
• •Skin diseases: Patients with other active skin diseases (e.g., urticaria, atopic dermatitis, sunburn, seborrheic dermatitis, perioral dermatitis, rosacea, skin malignancies) or active skin infections in the facial or truncal region (bacterial, fungal, or viral) or any other facial or truncal disease or condition that might interfere with the evaluation of acne or place the patient at unacceptable risk.
• •Allergy: Known or suspected hypersensitivity to any active or inactive ingredient in the study medication. Patients with a history of an allergic reaction or significant sensitivity to the formulations' ingredients.
• •Topical therapies: Patients who are currently using, plan to use during the study, or discontinued less than 4 weeks before study baseline the use of prescribed or over-the-counter topical therapies for the treatment of acne, including but not limited to: corticosteroids, antibiotics, azelaic acid, benzoyl peroxide, salicylates, α-hydroxy/glycolic acid, any other topical cosmetic therapy for acne and retinoids on the face/trunk.
• •Topical skin care products and procedures: Patients who are currently using, plan to use during the study, or discontinued less than 4 weeks before study baseline the use of products for facial/truncal application containing glycolic or other acids, masks, washes or soaps containing benzoyl peroxide or salicylic acid, non-mild cleansers or moisturizers containing retinol, salicylic or alpha- or beta-hydroxy acids, facial/truncal procedures such as chemical peel, laser treatment, photodynamic therapy, acne surgery, cryodestruction or chemodestruction, x-ray therapy, intralesional steroids, dermabrasion;
• •Phototherapy: Patients who are currently using, plan to use during the study, or discontinued less than 4 weeks before study baseline phototherapy for the treatment of acne, including but not limited to: UV-A, UV-B, heliotherapy. Patients who have the need or plan to be exposed to artificial tanning devices or excessive sunlight during the study.
• •Systemic therapies: Patients who are currently using, plan to use during the study, or discontinued less than 12 weeks before study baseline the use of systemic therapies for the treatment of acne, including but not limited to: antibiotics, isotretinoin. Other systemic therapy that could affect the patient's acne (i.e., anabolics, lithium, EGRF inhibitors, iodides, systemic corticosteroids - except inhaled corticosteroids or intrathecal corticosteroids - or other immunosuppressants), in the opinion of the investigator.
• •Known systemic diseases that can lead to acneiform eruptions:
• •1. Increased androgen production.
• •1. Adrenal origin: e.g., Cushing's disease, 21-hydroxylase deficiency;
• •2. Ovarian origin: e.g., polycystic ovarian syndrome, ovarian hyperthecosis
• •2. Cryptococcosis disseminated
• •3. Dimorphic fungal infections
• •4. Behçet's disease
• •5. Systemic lupus erythematosus (SLE).
• •Investigative studies: Participation in the evaluation of any other investigational product or device within 24 weeks before study baseline.
• •Diseases: Patients with underlying uncontrolled or unstable conditions (including but not limited to metabolic, hematologic, renal, hepatic, pulmonary, neurologic, endocrine, cardiac, infectious or gastrointestinal), which, in the Investigator's opinion, could significantly compromise the patient's safety and/or place the patient at an unacceptable risk. Any condition that in the investigator's opinion would make it unsafe for the patient to participate in the study.
• •Alcohol and other substance abuse: History of alcohol or other substance abuse within one year before screening.
• •Communication: Patient(s) and parents/legal guardian(s) (if applicable) unable to communicate or cooperate with the investigator due to e.g., language problems, impaired cerebral function, impaired mental conditions.
• •Reliability: Patients who may be unreliable for the study including patients who are unable to return for the scheduled visits.
• •Pregnancy\*: Pregnant or breastfeeding women or women of childbearing potential who are planning to become pregnant during the study. \*For all female patients of childbearing potential, pregnancy test result must be negative at screening.