Efficacy and Safety Study of Fibrin Sealant With 4 IU/mL Thrombin, Vapor Heated, Solvent Detergent Treated (FS VH S/D 4) in Face-Lift Procedures

Phase 2

Completed

Conditions: Facial Rhytidectomy (Face-lift)

Interventions: Biological: Fibrin Sealant with 4 IU/ml Thrombin, Vapor-Heated, Solvent Detergent Treated Containing Synthetic Aprotinin (FS VH S/D 4)

Registration Number: NCT00708071

Lead Sponsor: Baxter Healthcare Corporation

Brief Summary: The primary objective of this study is to evaluate the efficacy and safety of fibrin sealant with 4 IU/mL thrombin, vapor heated, solvent detergent treated (FS VH S/D 4) when used to reduce early postoperative bruising in participants undergoing a rhytidectomy (face-lift).

Detailed Description: Not available

Recruitment & Eligibility

Status: COMPLETED

Sex: All

Target Recruitment: 45

Inclusion Criteria

Subjects planned for facial rhytidectomy
Subjects who read, understand and sign the written informed consent
Healthy female or male subjects as determined by the investigator using standard pre-operative assessments to include laboratory tests and ECG
Subjects 18-75 years old, inclusively
Subjects who are able and willing to comply with the protocol requirements
Female subjects of childbearing potential with a negative urine or serum pregnancy test within 72 hours of surgery

Exclusion Criteria

Pregnant or lactating women
Subjects who have undergone previous face-lift surgery
Subjects undergoing abbreviated face-lift procedures such as deep plane procedures, minimal undermining procedures, thread lifts, and minimal access cranial suspension
Subjects indicated for concurrent facial surgeries during the operation (e.g. forehead plasty, blepharoplasty, rhinoplasty, buccal fat removal, any filler injections including fat injections, lip augmentation, skin resurfacing procedures etc.)
Subjects indicated for additional procedures during the same operation (e.g., liposuction, mastoplasty etc.)
Subjects who had prior silicone injections to their face (Botox and/or Restylane are allowed)
Subjects considered by the investigator to be smokers
Subjects with ecchymosis and/or edema on the face on day 0, prior to surgery
Subjects with known (documented) bleeding or coagulation disorders
Subjects currently being treated with anti-coagulants
Subjects treated with Aspirin in the last 7 days or use of other Non-steroidal anti-inflammatory drug (NSAIDs) within the last 7 days prior to surgery
Subjects with vascular disorders, cardiovascular disease, and/or uncontrolled hypertension
Subjects with diabetes mellitus
Subjects with a history of Bell´s palsy
Subjects with connective tissue disorders
Subjects with documented history of pathologically or pharmacologically induced immune deficiency
Subjects receiving systemic corticosteroid treatment for a chronic condition within 2 to 30 days prior to the surgery
Subjects with a known sensitivity to fibrin sealants
Subjects with a known psychiatric disorder (e.g., depression, obsessive compulsive disorder, anxiety, eating disorders, etc)
Subjects who have participated in another clinical study within 30 days prior to this study

Study & Design

Study Type: INTERVENTIONAL

Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
1	Fibrin Sealant with 4 IU/ml Thrombin, Vapor-Heated, Solvent Detergent Treated Containing Synthetic Aprotinin (FS VH S/D 4)	One side of the face is treated with FS VH S/D 4; the other side of the face is treated using standard of care.

Primary Outcome Measures

Name	Time	Method
Visual Comparison of Ecchymosis at Postoperative Day 3	Through Postoperative Day 3	Comparison between the FS VH S/D 4 treated side of the face and the side treated using standard of care (SoC) assessed by 5 separate blinded reviewers using standard digital photographs.
Incidence of Adverse Events (AEs) Related to Study Product (FS VH S/D 4) Throughout the Study Period	Through Postoperative Day 14 (± 1)

Secondary Outcome Measures

Name	Time	Method
Visual Comparison of Ecchymosis at Day 1	Through Postoperative Day 1	Comparison between the FS VH S/D 4 treated side of the face and the side treated using standard of care (SoC) assessed by 5 separate blinded reviewers using standard digital photographs.
Visual Comparison of Ecchymosis at Day 5	Through Postoperative Day 5	Comparison between the FS VH S/D 4 treated side of the face and the side treated using standard of care (SoC) assessed by 5 separate blinded reviewers using standard digital photographs.
Visual Comparison of Ecchymosis at Day 7	Through Postoperative Day 7	Comparison between the FS VH S/D 4 treated side of the face and the side treated using standard of care (SoC) assessed by 5 separate blinded reviewers using standard digital photographs.
Visual Comparison of Ecchymosis at Day 10	Through Postoperative Day 10	Comparison between the FS VH S/D 4 treated side of the face and the side treated using standard of care (SoC) assessed by 5 separate blinded reviewers using standard digital photographs.
Visual Comparison of Ecchymosis at Day 14	Through Postoperative Day 14	Comparison between the FS VH S/D 4 treated side of the face and the side treated using standard of care (SoC) assessed by 5 separate blinded reviewers using standard digital photographs.
Difference in Marchac Grades Using A Modified Marchac Scale (MMS) of Ecchymosis Between Two Sides of Face Assessed by 5 Independent, Blinded Reviewers- Day 1	Through Postoperative Day 1	Reviewers used photographs from postoperative Day 1, 3, 5, 7, 10, and 14. Differences are calculated as (SoC Grade) - (FS VH S/D 4 Grade). MMS for Post Rhytidectomy (Facelift) Ecchymosis: Grade 0= No bruising; Grade 1= Barely perceivable (easily hidden with makeup, yellowish color and affects limited area); Grade 2= Present, minimal (yellow color and covers ≤25% of operated area); Grade 3= Moderate (yellow color and covers \>25% of operated area, red color, blue color but covers a very small area); Grade 4= Extensive (blue color and covers more than just a very small area, dark purple color) The planned and approved Statistical Analysis Plan (SAP) specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Differences From Day 0 in Two-Point Discrimination Tests Days 3, 7, 10, 14	Postoperative Days 3, 7, 10, and 14	Two-point discrimination test performed by investigators to assess nerve regeneration. Testing performed on each side of the face (SoC and FS VH S/D 4). Differences are calculated as: Postoperative Day - Day 0, reported as minimal distance at which participants were able to discern feeling at two distinct points
Difference in Marchac Grades Using A Modified Marchac Scale (MMS) of Ecchymosis Between Two Sides of Face Assessed by 5 Independent, Blinded Reviewers- Day 3	Through Postoperative Day 3	Reviewers used photographs from postoperative Day 1, 3, 5, 7, 10, and 14. Differences are calculated as (SoC Grade) - (FS VH S/D 4 Grade). MMS for Post Rhytidectomy (Facelift) Ecchymosis: Grade 0= No bruising; Grade 1= Barely perceivable (easily hidden with makeup, yellowish color and affects limited area); Grade 2= Present, minimal (yellow color and covers ≤25% of operated area); Grade 3= Moderate (yellow color and covers \>25% of operated area, red color, blue color but covers a very small area); Grade 4= Extensive (blue color and covers more than just a very small area, dark purple color) The planned and approved SAP specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Difference in Marchac Grades Using A Modified Marchac Scale (MMS) of Ecchymosis Between Two Sides of Face Assessed by 5 Independent, Blinded Reviewers- Day 5	Through Postoperative Day 5	Reviewers used photographs from postoperative Day 1, 3, 5, 7, 10, and 14. Differences are calculated as (SoC Grade) - (FS VH S/D 4 Grade). MMS for Post Rhytidectomy (Facelift) Ecchymosis: Grade 0= No bruising; Grade 1= Barely perceivable (easily hidden with makeup, yellowish color and affects limited area); Grade 2= Present, minimal (yellow color and covers ≤25% of operated area); Grade 3= Moderate (yellow color and covers \>25% of operated area, red color, blue color but covers a very small area); Grade 4= Extensive (blue color and covers more than just a very small area, dark purple color) The planned and approved SAP specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Difference in Marchac Grades of Edema Between Two Sides of Face Assessed by Investigator Day 5	Through Postoperative Day 5	Investigators used the modified Marchac grading to evaluate edema during participant examinations on postoperative Day 1, 3, 5, 7, 10, and 14. The evaluations were performed on both sides of the face. Differences are calculated as Grade for Standard of Care - Grade for FS VH S/D 4. Marchac Scale for Post Rhytidectomy (Facelift) Edema: Grade 1= Nil; Grade 2= Minor; Grade 3= Moderate; Grade 4= Marked/unusual amount. The planned and approved SAP specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Difference in Marchac Grades Using A Modified Marchac Scale (MMS) of Ecchymosis Between Two Sides of Face Assessed by 5 Independent, Blinded Reviewers- Day 7	Through Postoperative Day 7	Reviewers used photographs from postoperative Day 1, 3, 5, 7, 10, and 14. Differences are calculated as (SoC Grade) - (FS VH S/D 4 Grade). MMS for Post Rhytidectomy (Facelift) Ecchymosis: Grade 0= No bruising; Grade 1= Barely perceivable (easily hidden with makeup, yellowish color and affects limited area); Grade 2= Present, minimal (yellow color and covers ≤25% of operated area); Grade 3= Moderate (yellow color and covers \>25% of operated area, red color, blue color but covers a very small area); Grade 4= Extensive (blue color and covers more than just a very small area, dark purple color) The planned and approved SAP specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Difference in Marchac Grades Using A Modified Marchac Scale (MMS) of Ecchymosis Between Two Sides of Face Assessed by 5 Independent, Blinded Reviewers- Day 10	Through Postoperative Day 10	Reviewers used photographs from postoperative Day 1, 3, 5, 7, 10, and 14. Differences are calculated as (SoC Grade) - (FS VH S/D 4 Grade). MMS for Post Rhytidectomy (Facelift) Ecchymosis: Grade 0= No bruising; Grade 1= Barely perceivable (easily hidden with makeup, yellowish color and affects limited area); Grade 2= Present, minimal (yellow color and covers ≤25% of operated area); Grade 3= Moderate (yellow color and covers \>25% of operated area, red color, blue color but covers a very small area); Grade 4= Extensive (blue color and covers more than just a very small area, dark purple color) The planned and approved SAP specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Difference in Marchac Grades Using A Modified Marchac Scale (MMS) of Ecchymosis Between Two Sides of Face Assessed by 5 Independent, Blinded Reviewers- Day 14	Through Postoperative Day 14	Reviewers used photographs from postoperative Day 1, 3, 5, 7, 10, and 14. Differences are calculated as (SoC Grade) - (FS VH S/D 4 Grade). MMS for Post Rhytidectomy (Facelift) Ecchymosis: Grade 0= No bruising; Grade 1= Barely perceivable (easily hidden with makeup, yellowish color and affects limited area); Grade 2= Present, minimal (yellow color and covers ≤25% of operated area); Grade 3= Moderate (yellow color and covers \>25% of operated area, red color, blue color but covers a very small area); Grade 4= Extensive (blue color and covers more than just a very small area, dark purple color) The planned and approved SAP specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Difference in Marchac Grades Using A Modified Marchac Scale (MMS) of Ecchymosis Between Two Sides of Face Assessed by a Blinded On-site Evaluator-Day 3	Postoperative Day 3	Difference between each side of the face are calculated as (SoC Grade) - (FS VH S/D 4 Grade). MMS for Post Rhytidectomy (Facelift) Ecchymosis: Grade 0= No bruising; Grade 1= Barely perceivable (easily hidden with makeup, yellowish color and affects limited area); Grade 2= Present, minimal (yellow color and covers ≤25% of operated area); Grade 3= Moderate (yellow color and covers \>25% of operated area, red color, blue color but covers a very small area); Grade 4= Extensive (blue color and covers more than just a very small area, dark purple color) The planned and approved SAP specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Difference in Marchac Grades of Edema Between Two Sides of Face Assessed by Investigator Day 1	Through Postoperative Day 1	Investigators used the modified Marchac grading to evaluate edema during participant examinations on postoperative Day 1, 3, 5, 7, 10, and 14. The evaluations were performed on both sides of the face. Differences are calculated as Grade for Standard of Care - Grade for FS VH S/D 4. Marchac Scale for Post Rhytidectomy (Facelift) Edema: Grade 1= Nil, Grade 2= Minor, Grade 3= Moderate, Grade 4= Marked/unusual amount. The planned and approved SAP specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Difference in Marchac Grades of Edema Between Two Sides of Face Assessed by Investigator Day 3	Through Postoperative Day 3	Investigators used the modified Marchac grading to evaluate edema during participant examinations on postoperative Day 1, 3, 5, 7, 10, and 14. The evaluations were performed on both sides of the face. Differences are calculated as Grade for Standard of Care - Grade for FS VH S/D 4. Marchac Scale for Post Rhytidectomy (Facelift) Edema: Grade 1= Nil; Grade 2= Minor; Grade 3= Moderate; Grade 4= Marked/unusual amount. The planned and approved SAP specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Difference in Marchac Grades of Edema Between Two Sides of Face Assessed by Investigator Day 7	Through Postoperative Day 7	Investigators used the modified Marchac grading to evaluate edema during participant examinations on postoperative Day 1, 3, 5, 7, 10, and 14. The evaluations were performed on both sides of the face. Differences are calculated as Grade for Standard of Care - Grade for FS VH S/D 4. Marchac Scale for Post Rhytidectomy (Facelift) Edema: Grade 1= Nil; Grade 2= Minor; Grade 3= Moderate; Grade 4= Marked/unusual amount. The planned and approved SAP specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Difference in Marchac Grades of Edema Between Two Sides of Face Assessed by Investigator Day 10	Through Postoperative Day 10	Investigators used the modified Marchac grading to evaluate edema during participant examinations on postoperative Day 1, 3, 5, 7, 10, and 14. The evaluations were performed on both sides of the face. Differences are calculated as Grade for Standard of Care - Grade for FS VH S/D 4. Marchac Scale for Post Rhytidectomy (Facelift) Edema: Grade 1= Nil; Grade 2= Minor; Grade 3= Moderate; Grade 4= Marked/unusual amount. The planned and approved SAP specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Difference in Marchac Grades of Edema Between Two Sides of Face Assessed by Investigator Day 14	Through Postoperative Day 14	Investigators used the modified Marchac grading to evaluate edema during participant examinations on postoperative Day 1, 3, 5, 7, 10, and 14. The evaluations were performed on both sides of the face. Differences are calculated as Grade for Standard of Care - Grade for FS VH S/D 4. Marchac Scale for Post Rhytidectomy (Facelift) Edema: Grade 1= Nil; Grade 2= Minor; Grade 3= Moderate; Grade 4= Marked/unusual amount. The planned and approved SAP specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Difference in Marchac Grades Using A Modified Marchac Scale (MMS) of Ecchymosis Between Two Sides of Face Assessed by Investigator- Day 1	Through Postoperative Day 1	Investigators used MMS during examinations- postoperative Day 1, 3, 5, 7, 10, and 14. Differences are calculated as (SoC Grade) - (FS VH S/D 4 Grade). MMS for Post Rhytidectomy (Facelift) Ecchymosis: Grade 0= No bruising; Grade 1= Barely perceivable (easily hidden with makeup, yellowish color \& affects limited area); Grade 2= Present, minimal (yellow color \& covers ≤25% of operated area); Grade 3= Moderate (yellow color \& covers \>25% of operated area, red color, blue color but covers a very small area); Grade 4= Extensive (blue color \& covers more than just very small area, dark purple color) The planned and approved SAP specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Difference in Marchac Grades Using A Modified Marchac Scale (MMS) of Ecchymosis Between Two Sides of Face Assessed by Investigator- Day 3	Through Postoperative Day 3	Investigators used MMS during examinations- postoperative Day 1, 3, 5, 7, 10, and 14. Differences are calculated as (SoC Grade) - (FS VH S/D 4 Grade). MMS for Post Rhytidectomy (Facelift) Ecchymosis: Grade 0= No bruising; Grade 1= Barely perceivable (easily hidden with makeup, yellowish color \& affects limited area); Grade 2= Present, minimal (yellow color \& covers ≤25% of operated area); Grade 3= Moderate (yellow color \& covers \>25% of operated area, red color, blue color but covers a very small area); Grade 4= Extensive (blue color \& covers more than just very small area, dark purple color) The planned and approved SAP specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Difference in Marchac Grades Using A Modified Marchac Scale (MMS) of Ecchymosis Between Two Sides of Face Assessed by Investigator- Day 5	Through Postoperative Day 5	Investigators used MMS during examinations- postoperative Day 1, 3, 5, 7, 10, and 14. Differences are calculated as (SoC Grade) - (FS VH S/D 4 Grade). MMS for Post Rhytidectomy (Facelift) Ecchymosis: Grade 0= No bruising; Grade 1= Barely perceivable (easily hidden with makeup, yellowish color \& affects limited area); Grade 2= Present, minimal (yellow color \& covers ≤25% of operated area); Grade 3= Moderate (yellow color \& covers \>25% of operated area, red color, blue color but covers a very small area); Grade 4= Extensive (blue color \& covers more than just very small area, dark purple color) The planned and approved SAP specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Difference in Marchac Grades Using A Modified Marchac Scale (MMS) of Ecchymosis Between Two Sides of Face Assessed by Investigator- Day 7	Through Postoperative Day 7	Investigators used MMS during examinations- postoperative Day 1, 3, 5, 7, 10, and 14. Differences are calculated as (SoC Grade) - (FS VH S/D 4 Grade). MMS for Post Rhytidectomy (Facelift) Ecchymosis: Grade 0= No bruising; Grade 1= Barely perceivable (easily hidden with makeup, yellowish color \& affects limited area); Grade 2= Present, minimal (yellow color \& covers ≤25% of operated area); Grade 3= Moderate (yellow color \& covers \>25% of operated area, red color, blue color but covers a very small area); Grade 4= Extensive (blue color \& covers more than just very small area, dark purple color) The planned and approved SAP specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Difference in Marchac Grades Using A Modified Marchac Scale (MMS) of Ecchymosis Between Two Sides of Face Assessed by Investigator- Day 10	Through Postoperative Day 10	Investigators used MMS during examinations- postoperative Day 1, 3, 5, 7, 10, and 14. Differences are calculated as (SoC Grade) - (FS VH S/D 4 Grade). MMS for Post Rhytidectomy (Facelift) Ecchymosis: Grade 0= No bruising; Grade 1= Barely perceivable (easily hidden with makeup, yellowish color \& affects limited area); Grade 2= Present, minimal (yellow color \& covers ≤25% of operated area); Grade 3= Moderate (yellow color \& covers \>25% of operated area, red color, blue color but covers a very small area); Grade 4= Extensive (blue color \& covers more than just very small area, dark purple color) The planned and approved SAP specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Difference in Marchac Grades Using A Modified Marchac Scale (MMS) of Ecchymosis Between Two Sides of Face Assessed by Investigator- Day 14	Through Postoperative Day 14	Investigators used MMS during examinations- postoperative Day 1, 3, 5, 7, 10, and 14. Differences are calculated as (SoC Grade) - (FS VH S/D 4 Grade). MMS for Post Rhytidectomy (Facelift) Ecchymosis: Grade 0= No bruising; Grade 1= Barely perceivable (easily hidden with makeup, yellowish color \& affects limited area); Grade 2= Present, minimal (yellow color \& covers ≤25% of operated area); Grade 3= Moderate (yellow color \& covers \>25% of operated area, red color, blue color but covers a very small area); Grade 4= Extensive (blue color \& covers more than just very small area, dark purple color) The planned and approved SAP specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Resolution of Ecchymosis as Assessed by Investigators	Postoperative Days 1, 3, 5, 7, 10, and 14	Resolution of ecchymosis (grade 0 on the Modified Marchac Scale for ecchymosis (Grade 0 = No bruising at all))
Resolution of Edema as Assessed by Investigators.	Postoperative Days 1, 3, 5, 7, 10, and 14	Resolution of edema (grade 1 on the Marchac Scale for Edema (Grade 1 = Nil)
Total Volume of Drainage on Each Side of the Face	24 hours postoperative
Participants With Hematoma/Seroma	Days 0, 1, 3, 5, 7,10, and 14	Investigators assessed each side of the face for the presence of hematoma/seroma
Participants With Hematoma/Seroma During the Study	Through Postoperative Day 14 (± 1)	Investigators assessed each side of the face for the presence of hematoma/seroma
Differences in Subjects' Assessments of Pain for Each Side of Face (SoC and FS VH S/D 4)	Days 1, 3, 5, 7,10, and 14	Differences are calculated as (Grade for SoC) - (Grade for FS VH S/D 4). Participants used a 10-point visual analogue scale to complete a pain assessment for each side of their face during each postoperative study visit (Days 1, 3, 5, 7, 10, and 14). The higher the number, the greater the pain experienced, i.e. 10 = worst, 1 = least. The planned and approved SAP specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Differences in Subjects' Assessments of Numbness for Each Side of Face (SoC and FS VH S/D 4)	Days 1, 3, 5, 7,10, and 14	Differences are calculated as (Grade for SoC) - (Grade for FS VH S/D 4). Participants used a 10-point visual analogue scale to complete a numbness assessment for each side of their face during each postoperative study visit (Days 1, 3, 5, 7, 10, and 14). The higher the number, the greater the numbness experienced, i.e. 10 = worst, 1 = least. The planned and approved SAP specified a pre-aggregation of the data whereby differences between the two sides of the face were computed first within participants to retain the inherent correlation (pairings) in the measures. Summary statistics and statistical tests were then computed on the differences between the two sides of the face using paired sample tests.
Participants' Assessment of Side of Face Preference (SoC and FS VH S/D 4)	Postoperative Days 1, 3, 5, 7, 10, and 14	Participants compared the levels of bruising on each side of their face and determine if they had a preference for the look of 1 side over another.