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A Study of Granexin® Gel for the Reduction of Scar Formation in Surgical Wounds Following Bilateral Anchor Incision Breast Surgery

A Phase 2b/3 Randomized, Prospective, Double Blind, Within-Subject Vehicle Controlled, Multi-Center Study to Determine the Efficacy and Safety of Granexin® Gel in Reducing Scar Formation in Surgical Wounds Following Bilateral Anchor Incision Breast Surgery

Status
Completed
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04331080
Enrollment
184
Registered
2020-04-02
Start date
2020-07-01
Completion date
2022-05-26
Last updated
2022-06-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Breast Reconstruction, Mammoplasty, Scar, Scarring

Brief summary

The purpose of this study is to evaluate effectiveness of Granexin® gel in reducing scar formation in surgical incisional wounds.

Detailed description

Participants that meet screening criteria will be eligible for randomization providing all other criteria are met. Participants enrolled will receive study drug for 3 days. The participants will have an additional follow-up period to assess scarring of both Granexin® gel and Vehicle gel incisions through end of study at Month 12.

Interventions

DRUGGranexin® gel 100 μM

Administered during the surgery, 24 hours post-surgery, and 48 hours post-surgery.

DRUGGranexin® gel 200 μM

Administered during the surgery, 24 hours post-surgery, and 48 hours post-surgery.

DRUGVehicle gel

Administered during the surgery, 24 hours post-surgery, and 48 hours post-surgery.

Sponsors

Xequel Bio, Inc.
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

1. Female subjects aged 18 years and older 2. Female subjects of childbearing potential must have a negative urine or blood pregnancy test at screening and baseline. 3. Female subjects of childbearing potential must agree to use ONE of the following birth control methods throughout the study: * abstinence * condom with spermicide * diaphragm with spermicide * Hormonal contraceptive * intra-uterine device Non-childbearing confirmed by prior documentation of at least one of the following: * postmenopausal * surgically sterilized 4. Subjects undergoing a breast surgery procedure with bilateral anchor incisions 5. Signed informed consent form

Exclusion criteria

1. Subjects with breast implants or history of breast implants 2. Subjects undergoing breast surgery requiring breast implants 3. Subjects requiring nipple grafting using any technique 4. Subjects with a history of infection in the past 6 months in the intended area of incision 5. Subjects with breast tattoos in the intended area of the incision 6. Subjects with known skin sensitivity to Tegaderm™ 7. Subjects with a history of keloids 8. Known conditions of collagen vascular diseases 9. Subjects with clinically significant medical conditions as determined by the Investigator, which would impair wound healing including renal, hepatic, hematologic, neurologic or autoimmune disease. Examples include but are not limited to: 1. Renal insufficiency as an estimated GFR, which is \< 30 mL/min/1.7m2 2. Abnormal blood biochemistry defined as 3 times that of the upper limit of the normal range 3. Hepatic insufficiency defined as total bilirubin \> 2 mg/dL or serum albumin \< 25 g/L 4. Hemoglobin \< 9 g/dL 5. Hematocrit \< 30% 6. Platelet count \< 100,000 μL 10. Any history within the last 5 years or the presence of any active systemic cancer (with the exception of non-melanoma skin cancer) 11. Current treatment with systemic corticosteroids (\>15 mg/day). Washout period is 30 days prior to screening 12. Current treatment with biologic immunosuppressive agents or chemotherapeutic agents. Wash out period for short term immunosuppressive agents is 14 days prior to screening 13. Previous history of radiation therapy to the chest 14. Known inability to complete required study visits during study participation 15. A psychiatric condition (e.g., suicidal ideation), chronic alcohol consumption, or drug abuse problem determined from the subject's medical history, which, in the opinion of the Investigator, may pose a threat to subject compliance 16. Use of any investigational drug or therapy within the 28 days prior to screening 17. History of previous breast surgeries in the area where the incisions are to be made 18. Currently pregnant, pregnant during the 6 months prior to screening, lactating, or breastfeeding 19. Any other factor, which may, in the opinion of the Investigator, compromise participation and follow-up in the study 20. Any areolar abnormalities that are deemed clinically significant by the Investigator

Design outcomes

Primary

MeasureTime frameDescription
Change in scar severity at Month 12Month 12Assessed using the Patient and Observer Scar Assessment Scale (POSAS). The POSAS has a rage from 6 to 60 with higher scores indicating worse outcomes. One scale will be used for each segment of the scar. The score from each segment will be combined into one score.

Secondary

MeasureTime frameDescription
Change in scar severity at Month 6, Month 9 and Month 12Month 6, Month 9 and Month 12Assessed using the Scar Cosmesis Assessment and Rating (SCAR) Scale. The SCAR scale has a range of 0 (best possible scar) to 15 (worst possible scar).
Change in scar severity at Month 9Month 9Assessed using the Patient and Observer Scar Assessment Scale (POSAS). The POSAS has a range from 6 to 60 with higher scores indicating worse outcomes. One scale will be used for each segment of the scar. The score from each segment will be combined into one score.
Proportion of subjects with incision healing complicationsDay 1 to Month 12Investigator's assessment of incision healing complications
Proportion of subjects with incision infectionDay 1 to Month 12Investigator's assessment of presence or absence of infection

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026