Safety and Efficacy Study of TPX-105 for Correction of Nasojugal Groove

Phase 3

Completed

• Conditions: Tear Trough Eyelid Deformity

• Registration Number: NCT06197789
• Lead Sponsor: Tego Science, Inc.

Brief Summary

Nasojugal groove correction is possible through surgical correction procedures, however, due to risks in safety and drawbacks not being able to be done on the young or after surgical procedure, dermal fillers which have the possibility of granulomatous allergic reaction and surface elevation. Therefore, there is a need for a safer procedure for nasojugal groove correction. This study evaluates the safety and efficacy of Autologous human dermal fibroblasts (TPX-105) used for the correction of nasojugal groove. The primary outcome is the improvement of nasojugal groove evaluated by an independent evaluator after administration of TPX-105 at week 24. Secondary outcomes include the improvement of nasojugal groove at week 4 and 12, severity change from baseline at week 4, 12 and 24 evaluated by an independent evaluator, and overall appearance improvement rate rated by subjects using Global Aesthetic Improvement Scale (GAIS) at week 4, 12, 24 and 48.

Detailed Description

Not available

Study Timeline

• Study Start: 2021-08-18
• Study First Submitted: 2023-05-17
• Primary Completion: 2023-06-05
• Study Completion: 2023-10-18
• Status Verified: 2023-12
• Study First Submitted QC: 2023-12-26
• Last Update Submitted: 2023-12-26
• Study First Posted: 2024-01-09
• Last Update Posted: 2024-01-09

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 60

Inclusion Criteria

Participants must;

1. Be 19 years old or older.
2. Have confirmed nasojugal groove severity equal to or more than "Moderate" (severity, grade 3) at subject assessment and want correction.
3. Consent to undergo skin biopsy on unexposed areas for manufacture of test product.
4. Fully understand the study and voluntarily sign the informed consent for participation in the study.

Exclusion Criteria

Participants with any of the following conditions will be excluded unless stated otherwise;

1. Unsuitable for skin biopsy.

2. Have prior medical history of the following at the time of screening.

3. Keloids

4. Chronic skin diseases (psoriasis, atopic dermatis)

5. Genetic disorders that affect fibroblasts or collagen (ex. achondroplasia, osteogensis imperfecta, etc.)

6. Autoimmune disease

7. Human immunodeficiency virus (HIV) positive

8. Coagulopathy

9. Basal cell carcinoma or history of malignant tumors within the last 5 years

10. Have any of the following comorbidities at screening.

11. Inflammatory lesions or infectious diseases in the nasojugal groove region

12. Wounds, scars, or skin disorders that may affect efficacy assessment

13. Subjects who require continuous administration (2 weeks or more) of corticosteroid

14. Acute chronic infectious diseases

15. Subjects with bleeding requiring medical intervention including blood transfusions

16. Subjects who have a medical history of the following at the time of screening.

17. Surgical procedures or surgeries such as fillers or fat grafting on nasojugal groove or tear through deformity.

18. Surgical procedures or wrinkle corrections around the eyes within 24 weeks from screening. (Ex. botulinum toxin injection, face lift surgery, soft tissue augmentation, semi-intercalated peel, dermal photorejuvenation, or etc.)

19. Subjects who have received anti-platelet drugs and anticoagulants within 7 days prior to skin biopsy.

20. Subjects with planned facial cosmetic surgery (facial fillers, photorejuvenation, chemical/mechanical peeling) or facial massages during the duration of the study.

21. Subjects who have allergies to investigational drug composition or manufacturing ingredients (bovine proteins, gentamicin, etc.)

22. Be pregnant, breastfeeding, planning pregnancy or unwilling to use of contraceptive* suggested in this study.

*Hormonal contraceptives (oral, transplanted, etc.), intrauterine device, double-barrier method (condom, diaphragm, or cervical occlusive cap with spermicide), surgically sterile partner, etc.

9. Have participated in other clinical trials and received investigational agents within 4 weeks of this study.

10. Be deemed inadequate for the study by investigators. (Serious heart disease, liver disease, kidney disease, etc.)

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Improvement Rate from Baseline	24 weeks	Improvement rate of nasojugal groove from baseline will be evaluated by a independent evaluator based on pictures taken at week 24 after administration of investigational product.; \*Improvement rate of nasojugal groove definition: With at least a 2-grade decrease

Secondary Outcome Measures

Name	Time	Method
Improvement Rate from Baseline	4, 12 weeks	Improvement rate of nasojugal groove from baseline evaluated by an independent evaluator based on pictures taken at week 4 and 12 after administration of investigational product.
Severity Grade Change from Baseline	4, 12, 24 weeks	Severity grade change from baseline evaluated by an independent evaluator based on pictures taken at week 4, 12 and 24 after administration of investigational product.
Overall Appearance Improvement Percentage (%)	4, 12, 24, 48 weeks	Overall appearance improvement percentage (%) rated by subjects using GAIS\* at week 4, 12, 24 and 48 after administration of investigational product.; \*In the case of overall appearance improvement rate using GAIS being +2 points (Much Improved) or +1 (Improved)

Trial Locations

Locations (4)

Soonchunhyang University Hospital Bucheon; 🇰🇷 Bucheon, Korea, Republic of

Kyungpook National University Hospital; 🇰🇷 Daegu, Korea, Republic of

The Catholic University of Korea, Seoul ST. Mary's Hospital; 🇰🇷 Seoul, Korea, Republic of

Korea University Guro Hospital; 🇰🇷 Seoul, Korea, Republic of