A Study to Evaluate Safety of ASC40 Tablets in Patients With Moderate to Severe Acne Vulgaris

NCT06248008 | Completed Phase 3

• 1 other identifier: ASC40-304
• Study Type: interventional
• Target: 240
• Locations: 1 country
• Sites: 1

Brief Summary

This is a multicenter, open-label study designed to determine the long-term safety of ASC40 (Denifanstat) tablets in patients with moderate to severe acne vulgaris enrolled in the ASC40-303 Phase III study. All subjects are eligible for study eligibility screening after enrollment in ASC40-303 Phase III study, and all eligible subjects with moderate to severe acne vulgaris will receive ASC40 (Denifanstat) tablets after signing informed consent. The investigational drug will be administered orally once daily (QD) for up to 40 weeks. There will be a total of 7 visits for screening and follow-up. The tests required by the program included routine blood tests, blood biochemistry, lipid profile, pregnancy test and urine routine, etc.

Conditions

Acne

Keywords

Acne; ASC40

Outcome Measures

Primary Outcomes (3)

• Number and percentage of subjects with treatment emergent adverse events (TEAE)

  The number and percentage of all subjects with treatment emergent adverse events (TEAE) from the first dose to 40 weeks of treatment.

  From the first dose to 40 weeks of treatment.

• Number and percentage of subjects with serious adverse event (SAE).

  Number and percentage of subjects with serious adverse event (SAE) from the first dose to 40 weeks of treatment.

  From the first dose to 40 weeks of treatment.

• Number and percentage of subjects who discontinued due to adverse events.

  Number and percentage of subjects who discontinued due to adverse events from the first dose to 40 weeks of treatment.

  From the first dose to 40 weeks of treatment.

Secondary Outcomes (4)

• At the end of the visit, the number of people whose IGA rating had decreased by at least 2 points from the baseline period of the study.

  up to 40 weeks.

• At the end of the visit, the number of subjects with an IGA score of 3 or higher at baseline dropped to an IGA score of 0 or 1.

  up to 40 weeks.

• Percentage change in total skin lesion count at the end of the visit compared to the baseline period of the study.

  up to 40 weeks.

• Percentage change in total inflammatory skin lesion count at the end of the visit compared to the baseline period of the study.

  up to 40 weeks.

Study Arms (1)

ASC40 50mg

EXPERIMENTAL

ASC40 50mg, up to 40 weeks of treatment.

Drug: ASC40

Interventions

ASC40 DRUG

ASC40 tablets orally once daily

ASC40 50mg

Eligibility Criteria

• Age: 18 Years - 40 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64)

You may qualify if:

• Participants who have successfully completed a 12-week Phase III study of ASC40-303;
• Have fully understood this research and voluntarily signed the informed consent;
• The fertile male and female subjects of reproductive age agreed to use effective contraception from the time they signed the informed consent until 3 months after the final administration of the investigationa drug;
• Subjects are willing and able to complete the study, understand and comply with the study requirements, comply with the study requirements restrictions and related education, use the investigational drug as prescribed by the physician, and follow up according to the study schedule.

You may not qualify if:

• Discontinue participation in the ASC40-303 Phase III study for any reason;
• Are receiving/planning to receive any systemic acne medications, systemic retinoids, systemic corticosteroids, or any androgen/antiandrogen therapy (e.g., testosterone, spironolactone);
• Pregnant, nursing, or planning a pregnancy during the study period;
• Have major complications (including clinically significant abnormalities in clinical laboratory tests), mental disorders, or other factors deemed unsuitable for study participation by the investigator.

Sponsors & Collaborators

• Ascletis Pharmaceuticals Co., Ltd.: lead

Study Sites (1)

Huashan Hospital Fudan University

Shanghai, Shanghai Municipality, 200000, China

Location

MeSH Terms

Conditions

Acne Vulgaris

Condition Hierarchy (Ancestors)

Acneiform Eruptions; Skin Diseases; Skin and Connective Tissue Diseases; Sebaceous Gland Diseases

Study Design

• Study Type: interventional
• Phase: phase 3
• Allocation: NA
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: January 31, 2024
• First Posted: February 8, 2024
• Study Start: April 18, 2024
• Primary Completion: November 12, 2025
• Study Completion: November 12, 2025
• Last Updated: December 1, 2025

Record last verified: 2025-11

Locations

CN (1)