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CompletedNCT05419505APHRODITEUpdated Mar 7, 2025Results posted

Study of Different Interventions to Reduce Bruising Following CCH-Aaes Treatment for Cellulite of the Buttocks

A Phase 2 interventional study of CCH-aaes and Antifibrinolytic Agent in Edematous Fibrosclerotic Panniculopathy and Cellulite, sponsored by Endo Pharmaceuticals. Completed at 13 sites in United States. Open to female participants aged 18 Years to 60 Years. Per ClinicalTrials.gov, last updated 2025-03-07.

Sponsored by Endo Pharmaceuticals (part of Keenova Therapeutics plc) · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
91
Allocation
Randomized
Ages
18 Years to 60 Years
Sex
Female
01

Study summary

The study will evaluate the effect of different doses, strengths (concentrations), diluent additives, depths of injection, and methods of injection on the severity of bruising potentially induced by QWO (collagenase clostridium histolyticum-aaes [CCH-aaes]).

Read the detailed description

The study will comprise a Screening Period (28 days), Treatment Period (90 days), and Follow-up Period (90 days). Participants will receive CCH-aaes in different doses, concentrations, diluent additives, depths of injection, and methods of injection in a split buttock arrangement, with the right buttock serving as the control, and the left buttock (investigational side) receiving a study intervention.

02

Conditions studied

  • Edematous Fibrosclerotic Panniculopathy
  • Cellulite

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Keywords

  • Collagenase Clostridium Histolyticum
  • collagenase clostridium histolyticum-aaes
03

In context

Cellulite

71 studies on the registry are indexed under Cellulite; 3 are open to participants now.

This study's enrollment of 91 is above the median of 34 across 65 interventional studies indexed under Cellulite.

Browse Cellulite studies →

Lead sponsor

Endo Pharmaceuticals is the lead sponsor of 99 studies on the registry; none are open to participants now.

Of its 16 completed or terminated interventional studies of FDA-regulated products, 14 (88%) have results posted.

First submitted before Endo Pharmaceuticals became part of Keenova Therapeutics plc.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 60 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Eligibility criteria

Key Inclusion Criteria:

  • Have a of 18 to \<32 kilograms (kg)/meter (m)\^2 and intends to maintain stable body weight during the study.
  • Have both buttocks with moderate or severe cellulite as reported by the investigator using the Clinician Reported Photonumeric Cellulite Severity Scale (CR-PCSS).
  • Have a Hexsel Cellulite Severity Scale (CSS) Total Score of ≤12.
  • Has a Fitzpatrick Skin Type of I-IV
  • Be willing to apply sunscreen to the treatment areas before each exposure to the sun for the duration of participation in the study.
  • Be willing and able to comply with the requirements of the study.

Key Exclusion Criteria:

  • Has systemic conditions (coagulation disorders, skin pigmentation disorders, , keloidal scarring, abnormal wound healing) that restricts study participation.
  • Is pregnant and/or is breast-feeding or plans to become pregnant and/or to breast-feed during the course of the study.
  • Has any local (in the areas to be treated) conditions (thrombosis, post-thrombosis syndrome, vascular disorder, inflammation, active infection, active cutaneous alteration, tattoo or mole) that restricts study participation.
  • Requires antiplatelet medication, anticoagulants, or non-steroidal anti-inflammatory drugs during the study.
  • Any medications, supplements, or foods that have, or have been reported to have anticoagulant effects within 14 days of treatment.
  • Has received treatment with treatment within 30 days before treatment.
  • Has used or intends to use any of the local applications, therapies, injections, or procedures for the treatment of cellulite on either buttock that would restrict study participation.
  • Intends to initiate an intensive sport or exercise program or intensive weight reduction program during the study.
  • Intends to engage in strenuous activity within 48 hours of study intervention administration.
  • Has recently tanned or intends to tan (outdoors or indoors) during the study.
  • Has a history of or allergy to collagenase or any other of CCH.
  • Has any condition(s) that, in the investigator's opinion, might indicate the participant to be unsuitable for the study.
  • Has participated in a previous investigational study of CCH or received any collagenase treatments at any time prior to treatment in this study for the treatment of cellulite of the buttocks.

In addition to the applicable aforementioned exclusion criteria, participants enrolling in Cohort 7 will be excluded from study participation if the participant:

  • Has any of the following medical conditions:

    1. history of venous or arterial thromboembolism or current thromboembolic disease.
    2. history of or current renal impairment.
    3. serum creatinine concentration > 1.4 milligram/deciliter at Screening.
  • Requires the following concomitant medications during the study and cannot discontinue these medications within the time specified before CCH-aaes treatment:

    1. concurrently taking combination hormonal .
    2. concurrently undergoing hormone replacement therapy.
    3. is a current smoker of nicotine or cannabinoids.
  • Participants in Cohort 7 should avoid smoking (including vaping, nicotine, or marijuana cigarettes) during the study.
Terms in these criteria, in plain language(6)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
91 participants (actual)

Study arms

  • Experimental
    Cohort 1: CCH-aaes Dose Evaluation

    Participants will be administered CCH-aaes at different doses. Participants will receive CCH-aaes treatments in a split buttock arrangement, with the right buttock as the control, and the left buttock as the investigational treatment.

    Drug: CCH-aaes

  • Experimental
    Cohort 2: CCH-aaes Concentration Evaluation

    Participants will be administered CCH-aaes at different concentrations. Participants will receive CCH-aaes treatments in a split buttock arrangement, with the right buttock as the control, and the left buttock as the investigational treatment.

    Drug: CCH-aaes

  • Experimental
    Cohort 3: CCH-aaes Injection Depth Evaluation

    Participants will be administered CCH-aaes using different injection depths. Participants will receive CCH-aaes treatments in a split buttock arrangement, with the right buttock as the control, and the left buttock as the investigational treatment.

    Drug: CCH-aaes

  • Experimental
    Cohort 4: CCH-aaes Injection Method Evaluation

    Participants will be administered CCH-aaes using different injection methods. Participants will receive CCH-aaes treatments in a split buttock arrangement, with the right buttock as the control, and the left buttock as the investigational treatment.

    Drug: CCH-aaes

  • Experimental
    Cohort 5: CCH-aaes and Diluent Additive Evaluation

    Participants will be administered CCH-aaes and diluent additive. Participants will receive CCH-aaes treatments in a split buttock arrangement, with the right buttock as the control, and the left buttock as the investigational treatment.

    Drug: CCH-aaes

  • Experimental
    Cohort 6: CCH-aaes Dose, Concentration, and Treatment Schedule Evaluation

    Participants will be administered CCH-aaes using a different treatment schedule and different doses and concentrations. Participants will receive CCH-aaes treatments in a split buttock arrangement, with the right buttock as the control, and the left buttock as the investigational treatment.

    Drug: CCH-aaes

  • Experimental
    Cohort 7: CCH-aaes and Antifibrinolytic Agent

    Participants will be administered CCH-aaes and an antifibrinolytic agent. Participants will receive CCH-aaes treatments in a split buttock arrangement, with the right buttock as the control, and the left buttock as the investigational treatment.

    Drug: CCH-aaes · Drug: Antifibrinolytic Agent

Interventions

  • Administered by subcutaneous injection.

    Also known as: Collagenase clostridium histolyticum-aaes, QWO®

  • Self-administered by participants enrolled in Cohort 7.

06

What researchers measure

Primary outcomes

  1. Percentage of Participants With at Least 1-Level Lower Score 3 to 5 Days After Initial CCH-aaes Injection, as Assessed by the Investigator Assessment of Bruising Severity Scale (IABSS) After Initial CCH-aaes Injection

    The investigator assessed the severity of bruising using the IABSS, The IABSS is a 5-point scale ranging from 0-4, with 0 indicating no bruising or almost none, and 4 indicating very severe bruising. Higher scores indicated worse outcomes. The investigator compared the bruising of the left (test) buttock to the right (control) buttock. Responders were participants whose left buttock/test side demonstrated at least a 1-level lower IABSS score versus the right buttock/control side. Percentages are based on the number of participants with an assessment at specified timepoint.

    Time frame: 3 to 5 days after initial CCH-aaes injection of left buttock (test) and right buttock (control)

Secondary outcomes

  1. Percentage of Participants With at Least 1-Level Lower Score, as Assessed by the IABSS

    The investigator assessed the severity of bruising using the IABSS, The IABSS is a 5-point scale ranging from 0-4, with 0 indicating no bruising or almost none, and 4 indicating very severe bruising. Higher scores indicated worse outcome. The investigator compared the bruising of the left buttock (test) to the right (control) buttock. Responders were participants whose left buttock/test side at Visit A demonstrated at least a 1-level lower IABSS score versus the right buttock/control side at Visit B, where Visit A and B could either be the same or different. Follow-up after first injection is presented: Follow-up 1 is 1 to 2 days after injection visit, Follow-up 2 is 3 to 5 days after injection visit, Follow-up 3 is 6 to 9 days after injection visit, and Follow-up 4 is 10 to 14 days after injection visit. Percentages are based on the number of participants with an assessment at specified timepoint.

    Time frame: Follow-up 1, 2, 3, and 4 after CCH-aaes injection of left buttock (test) and right buttock (control)

  2. Percentage of Participants With at Least +1 or Higher Score on the Investigator-Global Aesthetic Improvement Scale (I-GAIS) After CCH-aaes Injection

    The investigator determined the degree of improvement of each buttock by comparing treated cellulite dimples from the Day 1 pre-treatment (Baseline) digital image of each buttock to the treated dimples observed in a live assessment. The investigator determined the degree of improvement of each buttock with the I-GAIS, which uses a 7-point scale ranging from +3 (very much improved) to -3 (very much worse). A higher score indicated a better outcome. The investigator compared the bruising of the left (test) buttock to the right (control) buttock. A 1-level I-GAIS responder was defined as any participant with an improved (+1, +2 or +3) score on the I-GAIS at an analysis visit for that treatment area. Percentages are based on the number of participants with an assessment at specified timepoint.

    Time frame: Day 22 and Day 43 for Cohorts 1 to 5, Day 43 for Cohort 6, Day 22, Day 43, and Day 64 for Cohort 7, and Day 90, Day 135, and Day 180 for all cohorts

  3. Percentage of Participants With Injection Site Reactions

    Treatment-emergent adverse events (TEAEs) were defined as any adverse events (AEs) that occur or worsen (increase in severity) on the same day or after the study intervention administration on Day 1. Percent of participants with TEAEs of injection site reactions are presented by left buttock (test) and right buttock (control). A summary of serious and all other non-serious adverse events regardless of causality is located in the Reported Adverse Events module.

    Time frame: From Day 1 (after dose) through Day 180

07

Results

Posted Mar 7, 2025
Limitations and caveats
The study was halted before the predetermined sample size was enrolled, therefore, was not adequately powered to draw conclusions or to make comparisons between cohorts.

Participant flow

Participant flow — Overall Study
MilestoneCohort 1: CCH-aaes Dose EvaluationCohort 2: CCH-aaes Concentration EvaluationCohort 3: CCH-aaes Injection Depth EvaluationCohort 4: CCH-aaes Injection Method EvaluationCohort 5: CCH-aaes and Diluent Additive EvaluationCohort 6: CCH-aaes Dose, Concentration, and Treatment Schedule EvaluationCohort 7a: CCH-aaes and Antifibrinolytic AgentCohort 7b: CCH-aaes and Antifibrinolytic Agent
Started221457101977
Completed19115691766
Not completed33011211
Withdrew: Adverse event00010000
Withdrew: Withdrawal by subject12000010
Withdrew: Lost to follow-up21001201

Outcome measures

PrimaryPercentage of Participants With at Least 1-Level Lower Score 3 to 5 Days After Initial CCH-aaes Injection, as Assessed by the Investigator Assessment of Bruising Severity Scale (IABSS) After Initial CCH-aaes Injection

The investigator assessed the severity of bruising using the IABSS, The IABSS is a 5-point scale ranging from 0-4, with 0 indicating no bruising or almost none, and 4 indicating very severe bruising. Higher scores indicated worse outcomes. The investigator compared the bruising of the left (test) buttock to the right (control) buttock. Responders were participants whose left buttock/test side demonstrated at least a 1-level lower IABSS score versus the right buttock/control side. Percentages are based on the number of participants with an assessment at specified timepoint.

Time frame:
3 to 5 days after initial CCH-aaes injection of left buttock (test) and right buttock (control)
Reported as:
Number · percentage of participants
Percentage of Participants With at Least 1-Level Lower Score 3 to 5 Days After Initial CCH-aaes Injection, as Assessed by the Investigator Assessment of Bruising Severity Scale (IABSS) After Initial CCH-aaes Injection
percentage of participantsCohort 1: CCH-aaes Dose EvaluationCohort 2: CCH-aaes Concentration EvaluationCohort 3: CCH-aaes Injection Depth EvaluationCohort 4: CCH-aaes Injection Method EvaluationCohort 5: CCH-aaes and Diluent Additive EvaluationCohort 6: CCH-aaes Dose, Concentration, and Treatment Schedule EvaluationCohort 7a: CCH-aaes and Antifibrinolytic AgentCohort 7b: CCH-aaes and Antifibrinolytic Agent
Percentage of Participants With at Least 1-Level Lower Score 3 to 5 Days After Initial CCH-aaes Injection, as Assessed by the Investigator Assessment of Bruising Severity Scale (IABSS) After Initial CCH-aaes Injection90.5 (69.62 to 98.83)25.0 (5.49 to 57.19)20.0 (0.51 to 71.64)33.3 (4.33 to 77.72)44.4 (13.70 to 78.80)63.2 (38.36 to 83.71)33.3 (4.33 to 77.72)33.3 (4.33 to 77.72)
SecondaryPercentage of Participants With at Least 1-Level Lower Score, as Assessed by the IABSS

The investigator assessed the severity of bruising using the IABSS, The IABSS is a 5-point scale ranging from 0-4, with 0 indicating no bruising or almost none, and 4 indicating very severe bruising. Higher scores indicated worse outcome. The investigator compared the bruising of the left buttock (test) to the right (control) buttock. Responders were participants whose left buttock/test side at Visit A demonstrated at least a 1-level lower IABSS score versus the right buttock/control side at Visit B, where Visit A and B could either be the same or different. Follow-up after first injection is presented: Follow-up 1 is 1 to 2 days after injection visit, Follow-up 2 is 3 to 5 days after injection visit, Follow-up 3 is 6 to 9 days after injection visit, and Follow-up 4 is 10 to 14 days after injection visit. Percentages are based on the number of participants with an assessment at specified timepoint.

Time frame:
Follow-up 1, 2, 3, and 4 after CCH-aaes injection of left buttock (test) and right buttock (control)
Reported as:
Number · percentage of participants
Percentage of Participants With at Least 1-Level Lower Score, as Assessed by the IABSS
percentage of participantsCohort 1: CCH-aaes Dose EvaluationCohort 2: CCH-aaes Concentration EvaluationCohort 3: CCH-aaes Injection Depth EvaluationCohort 4: CCH-aaes Injection Method EvaluationCohort 5: CCH-aaes and Diluent Additive EvaluationCohort 6: CCH-aaes Dose, Concentration, and Treatment Schedule EvaluationCohort 7a: CCH-aaes and Antifibrinolytic AgentCohort 7b: CCH-aaes and Antifibrinolytic Agent
Follow-up 181.8 (59.72 to 94.81)15.4 (1.92 to 45.45)0 (0 to 52.18)42.9 (9.90 to 81.59)40.0 (12.16 to 73.76)44.4 (21.53 to 69.24)16.7 (0.42 to 64.12)42.9 (9.90 to 81.59)
Follow-up 290.5 (69.62 to 98.83)25.0 (5.49 to 57.19)20.0 (0.51 to 71.64)33.3 (4.33 to 77.72)44.4 (13.70 to 78.80)63.2 (38.36 to 83.71)33.3 (4.33 to 77.72)33.3 (4.33 to 77.72)
Follow-up 340.9 (20.71 to 63.65)38.5 (13.86 to 68.42)40.0 (5.27 to 85.34)28.6 (3.67 to 70.96)10.0 (0.25 to 44.50)31.6 (12.58 to 56.55)40.0 (5.27 to 85.34)42.9 (9.90 to 81.59)
Follow-up 413.6 (2.91 to 34.91)18.2 (2.28 to 51.78)0 (0 to 52.18)14.3 (0.36 to 57.87)10.0 (0.25 to 44.50)21.1 (6.05 to 45.57)16.7 (0.42 to 64.12)71.4 (29.04 to 96.33)
SecondaryPercentage of Participants With at Least +1 or Higher Score on the Investigator-Global Aesthetic Improvement Scale (I-GAIS) After CCH-aaes Injection

The investigator determined the degree of improvement of each buttock by comparing treated cellulite dimples from the Day 1 pre-treatment (Baseline) digital image of each buttock to the treated dimples observed in a live assessment. The investigator determined the degree of improvement of each buttock with the I-GAIS, which uses a 7-point scale ranging from +3 (very much improved) to -3 (very much worse). A higher score indicated a better outcome. The investigator compared the bruising of the left (test) buttock to the right (control) buttock. A 1-level I-GAIS responder was defined as any participant with an improved (+1, +2 or +3) score on the I-GAIS at an analysis visit for that treatment area. Percentages are based on the number of participants with an assessment at specified timepoint.

Time frame:
Day 22 and Day 43 for Cohorts 1 to 5, Day 43 for Cohort 6, Day 22, Day 43, and Day 64 for Cohort 7, and Day 90, Day 135, and Day 180 for all cohorts
Reported as:
Number · percentage of participants
Percentage of Participants With at Least +1 or Higher Score on the Investigator-Global Aesthetic Improvement Scale (I-GAIS) After CCH-aaes Injection
percentage of participantsCohort 1: CCH-aaes Dose EvaluationCohort 2: CCH-aaes Concentration EvaluationCohort 3: CCH-aaes Injection Depth EvaluationCohort 4: CCH-aaes Injection Method EvaluationCohort 5: CCH-aaes and Diluent Additive EvaluationCohort 6: CCH-aaes Dose, Concentration, and Treatment Schedule EvaluationCohort 7a: CCH-aaes and Antifibrinolytic AgentCohort 7b: CCH-aaes and Antifibrinolytic Agent
Day 22 Left Buttock (Test)42.9 (21.82 to 65.98)58.3 (27.67 to 84.83)100 (47.82 to 100)66.7 (22.28 to 95.67)40.0 (12.16 to 73.76)—85.7 (42.13 to 99.64)—
Day 22 Right Buttock (Control)57.1 (34.02 to 78.18)66.7 (34.89 to 90.08)100 (47.82 to 100)66.7 (22.28 to 95.67)40.0 (12.16 to 73.76)——100 (59.04 to 100)
Day 43 Left Buttock (Test)71.4 (47.82 to 88.72)84.6 (54.55 to 98.08)100 (47.82 to 100)83.3 (35.88 to 99.58)66.7 (29.93 to 92.51)44.4 (21.53 to 69.24)100 (47.82 to 100)100 (59.04 to 100)
Day 43 Right Buttock (Control)76.2 (52.83 to 91.78)76.9 (46.19 to 94.96)100 (47.82 to 100)100 (54.07 to 100)66.7 (29.93 to 92.51)50.0 (26.02 to 73.98)40.0 (5.27 to 85.34)100 (59.94 to 100)
Day 64 Left Buttock (Test)——————100 (47.82 to 100)100 (59.04 to 100)
Day 64 Right Buttock (Control)——————100 (47.82 to 100)100 (59.04 to 100)
Day 90 (Follow-up) Left Buttock (Test)38.1 (18.11 to 61.56)70.0 (34.75 to 93.33)100 (47.82 to 100)66.7 (22.8 to 95.67)44.4 (13.70 to 78.80)27.8 (9.69 to 53.48)85.7 (42.13 to 99.64)100 (59.04 to 100)
Day 90 (Follow-up) Right Buttock (Control)47.6 (25.71 to 70.22)80.0 (44.39 to 97.48)100 (47.82 to 100)83.3 (35.88 to 99.58)44.4 (13.70 to 78.80)38.9 (17.30 to 64.25)71.4 (29.04 to 96.33)100 (59.04 to 100)
Day 135 (Follow-up) Left Buttock (Test)36.8 (16.29 to 61.64)90.9 (58.72 to 99.77)100 (47.82 to 100)50.0 (11.81 to 88.19)22.2 (2.81 to 60.01)22.2 (6.41 to 47.64)83.3 (35.88 to 99.58)100 (54.07 to 100)
Day 135 (Follow-up) Right Buttock (Control)47.4 (24.45 to 71.14)81.8 (48.22 to 97.72)100 (47.82 to 100)66.7 (22.28 to 95.67)22.2 (2.81 to 60.01)33.3 (13.34 to 59.01)66.7 (22.28 to 95.67)83.3 (35.88 to 99.58)
Day 180 (End of Study) Left Buttock (Test)36.8 (16.29 to 61.64)100 (71.51 to 100)100 (47.82 to 100)50.0 (11.81 to 88.19)11.1 (0.28 to 48.25)17.6 (3.80 to 43.43)66.7 (22.28 to 95.67)83.3 (35.88 to 99.58)
Day 180 (End of Study) Right Buttock (Control)36.8 (16.29 to 61.64)81.8 (48.22 to 97.72)100 (47.82 to 100)66.7 (22.28 to 95.67)11.1 (0.28 to 48.25)41.2 (18.44 to 67.08)66.7 (22.28 to 95.67)83.3 (35.88 to 99.58)
SecondaryPercentage of Participants With Injection Site Reactions

Treatment-emergent adverse events (TEAEs) were defined as any adverse events (AEs) that occur or worsen (increase in severity) on the same day or after the study intervention administration on Day 1. Percent of participants with TEAEs of injection site reactions are presented by left buttock (test) and right buttock (control). A summary of serious and all other non-serious adverse events regardless of causality is located in the Reported Adverse Events module.

Time frame:
From Day 1 (after dose) through Day 180
Reported as:
Number · percentage of participants
Percentage of Participants With Injection Site Reactions
percentage of participantsCohort 1: CCH-aaes Dose EvaluationCohort 2: CCH-aaes Concentration EvaluationCohort 3: CCH-aaes Injection Depth EvaluationCohort 4: CCH-aaes Injection Method EvaluationCohort 5: CCH-aaes and Diluent Additive EvaluationCohort 6: CCH-aaes Dose, Concentration, and Treatment Schedule EvaluationCohort 7a: CCH-aaes and Antifibrinolytic AgentCohort 7b: CCH-aaes and Antifibrinolytic Agent
Left Buttock (Test)100 (84.56 to 100)92.9 (75.29 to 100)100 (47.82 to 100)100 (59.04 to 100)100 (69.15 to 100)100 (82.35 to 100)100 (59.04 to 100)100 (59.04 to 100)
Right Buttock (Control)100 (84.56 to 100)92.9 (75.29 to 100)100 (47.82 to 100)100 (59.04 to 100)100 (69.15 to 100)100 (82.35 to 100)85.7 (54.07 to 100)100 (59.04 to 100)

Adverse events

Collected over From Day 1 (after dose) through Day 180. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Cohort 1: CCH-aaes Dose Evaluation-Test (ISR)——22/22 (100%)
Cohort 1: CCH-aaes Dose Evaluation-Control (ISR)——22/22 (100%)
Cohort 2: CCH-aaes Concentration Evaluation-Test (ISR)——13/14 (92.9%)
Cohort 2: CCH-aaes Concentration Evaluation -Control (ISR)——13/14 (92.9%)
Cohort 3: CCH-aaes Injection Depth Evaluation-Test (ISR)——5/5 (100%)
Cohort 3: CCH-aaes Injection Depth Evaluation-Control (ISR)——5/5 (100%)
Cohort 4: CCH-aaes Injection Method Evaluation-Test (ISR)——7/7 (100%)
Cohort 4: CCH-aaes Injection Method Evaluation-Control (ISR)——7/7 (100%)
Cohort 5: CCH-aaes and Diluent Additive Evaluation-Test (ISR)——10/10 (100%)
Cohort 5: CCH-aaes and Diluent Additive Evaluation-Control (ISR)——10/10 (100%)
Cohort 6: CCH-aaes Dose, Concentration, and Treatment Schedule Evaluation -Test (ISR)——19/19 (100%)
Cohort 6: CCH-aaes Dose, Concentration, and Treatment Schedule Evaluation-Control (ISR)——19/19 (100%)
Cohort 7a: CCH-aaes and Antifibrinolytic Agent-Test (ISR)——7/7 (100%)
Cohort 7a: CCH-aaes and Antifibrinolytic Agent-Control (ISR)——6/7 (85.7%)
Cohort 7b: CCH-aaes and Antifibrinolytic Agent-Test (ISR)——7/7 (100%)
Cohort 7b: CCH-aaes and Antifibrinolytic Agent-Control (ISR)——7/7 (100%)
Cohort 1: Systemic/Non-ISR AEs0/22 (0%)0/22 (0%)4/22 (18.2%)
Cohort 2: Systemic/Non-ISR AEs0/14 (0%)0/14 (0%)0/14 (0%)
Cohort 3: Systemic/Non-ISR AEs0/5 (0%)0/5 (0%)3/5 (60%)
Cohort 4: Systemic/Non-ISR AEs0/7 (0%)0/7 (0%)0/7 (0%)
Cohort 5: Systemic/Non-ISR AEs0/10 (0%)0/10 (0%)0/10 (0%)
Cohort 6: Systemic/Non-ISR AEs0/19 (0%)0/19 (0%)4/19 (21.1%)
Cohort 7a: Systemic/Non-ISR AEs0/7 (0%)0/7 (0%)0/7 (0%)
Cohort 7b: Systemic/Non-ISR AEs0/7 (0%)0/7 (0%)2/7 (28.6%)
Most frequent other events
Showing 10 of 26
Most frequent other events
EventCohort 1: CCH-aaes Dose Evaluation-Test (ISR)Cohort 1: CCH-aaes Dose Evaluation-Control (ISR)Cohort 2: CCH-aaes Concentration Evaluation-Test (ISR)Cohort 2: CCH-aaes Concentration Evaluation -Control (ISR)Cohort 3: CCH-aaes Injection Depth Evaluation-Test (ISR)Cohort 3: CCH-aaes Injection Depth Evaluation-Control (ISR)Cohort 4: CCH-aaes Injection Method Evaluation-Test (ISR)Cohort 4: CCH-aaes Injection Method Evaluation-Control (ISR)Cohort 5: CCH-aaes and Diluent Additive Evaluation-Test (ISR)Cohort 5: CCH-aaes and Diluent Additive Evaluation-Control (ISR)Cohort 6: CCH-aaes Dose, Concentration, and Treatment Schedule Evaluation -Test (ISR)Cohort 6: CCH-aaes Dose, Concentration, and Treatment Schedule Evaluation-Control (ISR)Cohort 7a: CCH-aaes and Antifibrinolytic Agent-Test (ISR)Cohort 7a: CCH-aaes and Antifibrinolytic Agent-Control (ISR)Cohort 7b: CCH-aaes and Antifibrinolytic Agent-Test (ISR)Cohort 7b: CCH-aaes and Antifibrinolytic Agent-Control (ISR)Cohort 1: Systemic/Non-ISR AEsCohort 2: Systemic/Non-ISR AEsCohort 3: Systemic/Non-ISR AEsCohort 4: Systemic/Non-ISR AEsCohort 5: Systemic/Non-ISR AEsCohort 6: Systemic/Non-ISR AEsCohort 7a: Systemic/Non-ISR AEsCohort 7b: Systemic/Non-ISR AEs
Injection site bruisingGeneral disorders22/2222/2213/1413/145/55/50/70/710/1010/1019/1919/190/70/77/77/7————————
Injection site haemorrhageGeneral disorders0/220/220/140/140/50/57/77/70/100/100/190/197/76/70/70/7————————
Injection site painGeneral disorders7/228/220/140/141/51/50/70/79/109/102/192/192/70/71/73/7————————
Injection site discolourationGeneral disorders10/2210/220/140/143/53/52/72/71/101/101/191/192/72/70/71/7————————
Injection site noduleGeneral disorders1/220/220/140/140/50/50/70/74/104/102/192/191/71/70/70/7————————
Injection site papuleGeneral disorders0/220/220/140/142/52/50/70/70/100/100/190/190/70/70/70/7————————
Injection site pruritusGeneral disorders2/222/220/140/140/50/50/70/73/103/101/191/190/70/70/70/7————————
HypertensionVascular disorders————————————————1/220/141/50/70/100/190/70/7
AcneSkin and subcutaneous tissue disorders————————————————0/220/141/50/70/100/190/70/7
HaematuriaRenal and urinary disorders————————————————0/220/141/50/70/100/190/70/7

Baseline characteristics

All participants who received at least 1 injection of CCH-aaes.

Age, Continuous
Age, Continuous(years)Cohort 1: CCH-aaes Dose EvaluationCohort 2: CCH-aaes Concentration EvaluationCohort 3: CCH-aaes Injection Depth EvaluationCohort 4: CCH-aaes Injection Method EvaluationCohort 5: CCH-aaes and Diluent Additive EvaluationCohort 6: CCH-aaes Dose, Concentration, and Treatment Schedule EvaluationCohort 7a: CCH-aaes and Antifibrinolytic AgentCohort 7b: CCH-aaes and Antifibrinolytic AgentTotal
Mean43.50 ± 10.69844.79 ± 9.12544.40 ± 8.50334.00 ± 8.69946.50 ± 10.17947.74 ± 7.22537.57 ± 10.96738.57 ± 10.54943.40 ± 9.998
Sex: Female, Male
Sex: Female, Male(Participants)Cohort 1: CCH-aaes Dose EvaluationCohort 2: CCH-aaes Concentration EvaluationCohort 3: CCH-aaes Injection Depth EvaluationCohort 4: CCH-aaes Injection Method EvaluationCohort 5: CCH-aaes and Diluent Additive EvaluationCohort 6: CCH-aaes Dose, Concentration, and Treatment Schedule EvaluationCohort 7a: CCH-aaes and Antifibrinolytic AgentCohort 7b: CCH-aaes and Antifibrinolytic AgentTotal
Female22145710197791
Male000000000
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)Cohort 1: CCH-aaes Dose EvaluationCohort 2: CCH-aaes Concentration EvaluationCohort 3: CCH-aaes Injection Depth EvaluationCohort 4: CCH-aaes Injection Method EvaluationCohort 5: CCH-aaes and Diluent Additive EvaluationCohort 6: CCH-aaes Dose, Concentration, and Treatment Schedule EvaluationCohort 7a: CCH-aaes and Antifibrinolytic AgentCohort 7b: CCH-aaes and Antifibrinolytic AgentTotal
Asian000000101
Black or African American100000001
White1814579186784
Other100000001
Multiple200011004
08

Study locations

13 sites
  • Endo Clinical Trial Site #6
    Scottsdale, Arizona 85255, United States
  • Endo Clinical Trial Site #4
    Beverly Hills, California 90210, United States
  • Endo Clinical Trial Site #9
    Encinitas, California 92024, United States
  • Endo Clinical Trial Site #10
    San Diego, California 92121, United States
  • Endo Clinical Trial Site #7
    Solana Beach, California 92075, United States
  • Endo Clinical Trial Site #12
    Greenwood Village, Colorado 80111, United States
  • Endo Clinical Trial Site #8
    Coral Gables, Florida 33146, United States
  • Endo Clinical Trial Site #13
    Miami, Florida 33137, United States
  • Endo Clinical Trial Site #3
    Chicago, Illinois 60611, United States
  • Endo Clinical Trial Site #2
    Metairie, Louisiana 700006, United States
  • Endo Clinical Trial Site #11
    New York, New York 10021, United States
  • Endo Clinical Trial Site #1
    Nashville, Tennessee 37215, United States
  • Endo Clinical Trial Site #5
    Pflugerville, Texas 78660, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Yes

Supporting information: Study protocol, Statistical analysis plan

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 7, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT05419505
Responsible party
Sponsor
First posted
Jun 15, 2022
Start date
Jun 15, 2022
Primary completion
Jan 3, 2023
Completion
Jun 21, 2023
Results posted
Mar 7, 2025
Last update
Mar 7, 2025

Study contacts

David Hernandez
study director · Endo Pharmaceuticals

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Microbial Collagenase

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