A Pivotal, Blinded Multi-Center Study to Show the Safety and Effectiveness of the Demetech Barbed PDO Suture

The clinical trial, sponsored by Sutura Medical Technology, Inc., is a pivotal, blinded, multi-center study assessing the safety and effectiveness of the Demetech Barbed PDO Suture, an absorbable Polydioxanone suture, for the temporary treatment of midface wrinkles. The trial will enroll 57 subjects across up to four sites, following them over a 12-month period to evaluate improvements in wrinkles based on the Lemperle Classification Facial Wrinkle Scale. Primary endpoints include assessing the rate of adverse events and a significant reduction in wrinkle severity at 6 months, with secondary endpoints focusing on longer-term results and patient satisfaction.

Study Overview

• Status: Active, not recruiting
• Conditions: Wrinkle
• Intervention / Treatment: Device: Demetech Barbed PDO Suture

• Study Type: Interventional
• Enrollment (Actual): 57
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • California
    • Los Angeles, California, United States, 90025
      • Rejuva Medical Aesthetics
    • Sherman Oaks, California, United States, 91423
      • Cosmetic Injectables Center
  • Texas
    • The Woodlands, Texas, United States, 77381
      • Vedas Med Spa
  • Washington
    • Bellevue, Washington, United States, 98004
      • Dr. Kristin Tarbet Facial Plastic Surgery

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

1. Male and female subjects, 22+ years of age.
2. Subject received a rating, in each cheek, by PI of at least Class 1 or more for wrinkling in the midface according to the Lemperle Scale Classification of Facial Wrinkling.
3. If a woman is of childbearing potential (not amenorrheic for the previous 24 months or not surgically sterile), then she must have a confirmed negative urine pregnancy test result at screening. If treatment is not provided at the screening visit, a negative urine pregnancy test result is required within 7 days before treatment.
4. If a woman of childbearing potential, subject confirms she will utilize at least one form of contraception throughout the duration of the study.
5. Subjects who desire cheek lifting to correct age-related wrinkles in the midface as recommended by the treating investigator.
6. Subjects who are able to understand the study requirements, including the obligation not to receive any other facial procedures or treatments affecting mid-face at any time during the study.
7. Subjects who are willing to participate in the study and to sign a witnessed/informed consent form.
8. Subjects who are logistically able to present for all study visits and meet all study requirements.
9. Subjects who are willing to complete the 30-day diary.
10. Subjects who pass the pinprick and/or cotton swab facial nerve assessment.

Exclusion Criteria:

1. Abnormal rating in midface sensation, with inability to feel a 0.4 G monofilament or a cotton wisp at any site on the midface.
2. Active acne or prominent acne scars in the treatment area.
3. Active inflammatory or infectious conditions.
4. Allergy or foreign body sensitivities to plastic biomaterials.
5. Known bleeding disorder.
6. Breastfeeding, pregnant, or not on/willing to use contraception if of childbearing potential.
7. Collagen skin disorder.
8. Pre-existing facial asymmetry.
9. History of any device use on the mid-face in the prior 6 months (e.g., laser, IPL, radiofrequency, ultrasound, micro-needling, micro needle RF, or cool based treatments).
10. History of autoimmune or connective tissue disease.
11. History of facelift, midface lift, lower facelift, or neck lift that changes the facial structure and anchor points.
12. History of fat transfer to the midface.
13. History of injectable fillers other than temporary fillers such as Hyaluronic Acid or Radiesse to the midface at any time. Permanent and semi-permanent fillers are not allowed (e.g., PLLA, Sculptra).
14. History of Kybella in the prior 6 months.
15. History of facial trauma in the mid-face.
16. History of facial surgical procedures.
17. Inability to chew, puff cheek, or smile broadly.
18. Metabolism irregularities.
19. On immunosuppressive therapy.
20. Recent weight loss or intention to lose a significant amount of weight during the study period (2 BMI Points).
21. Subjects who have undergone cosmetic facial plastic surgery (with the exception of rhinoplasty or upper blepharoplasty, more than 2 years prior to enrollment), tissue grafting, or tissue lifting or augmentation with any permanent or semi-permanent filler.
22. Subjects who have had temporary facial dermal filler injections below the orbital rim with HA-based fillers or Radiesse within 18 months, porcine-based collagen fillers within 24 months, or neuromodulator injections to the midface or lateral canthal lines, mesotherapy, or resurfacing (laser, photomodulation, intense pulsed light, radio frequency, dermabrasion, chemical peel, or other ablative or non-ablative procedures) within 6 months of entry in the study or who were planning to undergo any of these procedures at any time during the study.
23. Subjects who have very thin skin in the mid-face region, who have the tendency to accumulate fluid in the lower eyelids, or who have large infraorbital fat pads.
24. Subjects who have mid-face volume deficit due to congenital defect, trauma, abnormalities in adipose tissue related to immune-mediated diseases such as generalized lipodystrophy, partial lipodystrophy (e.g., Barraquer-Simons syndrome), inherited disease, or HIV-related disease.
25. Subjects who have serious concurrent illness which may lead to problems with wound healing (e.g., uncontrolled diabetes or vascular disease).
26. Subjects with known or suspected family history of problems with keloid scarring.
27. Subjects with serious neurological or psychological conditions which could prevent the subject from cooperating with treatment or post-procedure care and assessment.
28. Smokers, since this may compromise wound healing.
29. Subjects who have a current or prior history within the last 3 years of neoplasm and/or any active neoplasm in the face or that in the opinion of the Investigator may make them not a suitable candidate.
30. Subjects currently enrolled in other clinical trials.
31. Subjects taking Warfarin or other anticoagulants. These subjects may experience a significant risk of problems with post-operative bleeding.
32. Subjects who have taken, in the last 2 weeks, ad-lib medication or herbal supplements that may increase risk of bleeding. This includes aspirin or other herbal supplements known to increase risk of bleeding.
33. Subjects with significant co-morbidities (e.g., heart disease, strokes, or angina) that in the opinion of the Investigator may prevent the subject from completing the study.
34. Subjects with planned cosmetic procedures, facial or dental surgery during the follow-up period.
35. Other concerning health issue in the opinion of the Investigator.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Demetech Barbed PDO Suture	Device: Demetech Barbed PDO Suture; The Demetech Barbed PDO Suture will be used for the correction of midface wrinkles in all patients enrolled in this study.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Improvement from Baseline on the Lemperle Classification Wrinkle Scale	The primary effectiveness endpoint is the proportion of subjects with ≥1 point improvement on the Lemperle Classification Facial Wrinkle Scale at 6 months compared to baseline, as rated by a panel of three blinded evaluators. The median score as rated by the blinded panel using subject photographs will be used to determine if a subject is a responder. Clinical effectiveness will be demonstrated by superiority of this 6-month response rate over a target rate of 60%	6 Month

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Improvement from Baseline on the Lemperle Classification Wrinkle Scale	ndividual endpoints at each timepoint of 3, 9, and 12 months for the proportion of subjects with ≥1 point improvement from baseline on the Lemperle Scale, as rated by a panel of three blinded evaluators.	3, 9, and 12 Months
Improvement from Baseline on the Lemperle Classification Wrinkle Scale	Change from baseline at each timepoint of 3, 6, 9, and 12 months on the Lemperle Scale, as rated by a panel of three blinded evaluators.	3, 6, 9, and 12 Months
Improvement from Baseline on the Lemperle Classification Wrinkle Scale	Individual endpoints at each timepoint of 3, 6, 9, and 12 months for the proportion of subjects with ≥1 point improvement from baseline on the Lemperle Scale, as rated by the Investigator.	3, 6, 9, and 12 Months
Improvement from Baseline on the Lemperle Classification Wrinkle Scale	Change from baseline at each timepoint of 3, 6, 9, and 12 months on the Lemperle Scale, as rated by the Investigator.	3, 6, 9, and 12 Months
Improvement in Investigator-rated GAIS	Individual endpoints at each timepoint of 6 weeks, 3, 6, 9, and 12 months for improvement in Investigator-rated GAIS.	6 Weeks, 3, 6, 9, 12 Months
Improvement in Subject-rated GAIS	Individual endpoints at each timepoint of 6 weeks, 3, 6, 9, and 12 months for improvement in Subject-rated GAIS.	6 Weeks, 3, 6, 9, 12 Months
FACE-Q Satisfaction with Cheeks and Age Appraisal scales as rated by the Subject.	Individual endpoints at each timepoint of 6 weeks, 3, 6, 9, and 12 months for improvement from baseline on each of the validated FACE-Q Satisfaction with Cheeks and Age Appraisal scales as rated by the Subject.	6 Weeks, 3, 6, 9, 12 Months

Collaborators and Investigators

• Sponsor: Sutura Medical Technology LLC
• Investigators: Principal Investigator: Sherly Soleiman, MD, Cosmetic Injectables Center; Principal Investigator: Chaitali Nangrani, MD, Vedas Med Spa; Principal Investigator: Kristin Tarbet, MD, Dr. Kristin Tarbet Facial Plastic Surgery; Principal Investigator: Amit Kocher, MD, Rejuva Medical Aesthetics

Study record dates

Study Major Dates

• Study Start (Actual): April 21, 2022
• Primary Completion (Actual): December 4, 2023
• Study Completion (Estimated): June 1, 2024

Study Registration Dates

• First Submitted: May 3, 2024
• First Submitted That Met QC Criteria: May 3, 2024
• First Posted (Actual): May 8, 2024

Study Record Updates

• Last Update Posted (Actual): May 8, 2024
• Last Update Submitted That Met QC Criteria: May 3, 2024
• Last Verified: May 1, 2024

More Information

Terms related to this study

• Keywords: Suture; Sutura; Demetech Barbed PDO Suture; Novathreads
• Other Study ID Numbers: CF-CLT-PRT

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: Yes