Long-Term Study of EN3835 (CCH-aaes) in Edematous Fibrosclerotic Panniculopathy (Cellulite)

NCT ID: NCT03526549

Last Updated: 2023-09-08

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

483 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-04-26

Study Completion Date

2021-10-08

Brief Summary

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A Phase 3b, Open-Label Extension Study to evaluate safety and how long response of EN3835 (Collagenase Clostridium Histolyticum \[CCH\]-aaes) lasts in the treatment of Cellulite.

Detailed Description

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This study included participants who completed EN3835-302 (NCT03428750) or EN3835-303 (NCT03446781) double-blind parent studies. The first part of this study consisted of an observational period conducted in a blinded fashion and where no treatments were administered between Day 71 of the parent studies and Day 180 in this Open-label extension study. Once these participants were unblinded at Day 180, only participants who received active CCH-aaes in the parent studies remained in this study and those who received placebo in the parent studies were not eligible to continue in the Open-label study. Assessments made at the Day 71/(End of Study \[EOS\]) visit of the parent studies served as initial screening assessments for this study.

In the Open-label Phase of the study, all participants who qualified for, and opted for, retreatment were administered CCH-aaes at 3 treatment sessions at 21-day intervals.

Conditions

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Edematous Fibrosclerotic Panniculopathy Cellulite

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Investigators, participants, and site personnel were blinded to the treatment administered in the EN3835-302/303 parent studies until all Day 180 visit assessments were completed.

CCH-aaes retreatment in this study was provided in an open-label manner.

Study Groups

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CCH-aaes Treatment in Parent Studies (EN3835-302/303)

Participants who received CCH-aaes treatment in EN3835-302/303 were followed for 180 days of observation with no treatment. Participants who were identified as received CCH-aaes in the parent studies following the 180-day Observation Phase and entered the Open-label Phase of the study. Participants in the Open-label Phase who qualified for, and opted for, retreatment were administered CCH-aaes up to 1.68 mg at 3 treatment sessions, at 21-day intervals.

Group Type EXPERIMENTAL

CCH-aaes

Intervention Type BIOLOGICAL

Administered to participants who qualified for, and opted for, retreatment.

Observation

Intervention Type OTHER

No treatment administered during 180 days of observation.

Placebo Treatment in Parent Studies (EN3835-302/303)

Participants who received placebo in the parent studies, were followed for 180 days of observation with no treatment. After Day 180, all participants who received placebo during the double-blind parent studies were discontinued. No treatment was administered.

Group Type OTHER

Observation

Intervention Type OTHER

No treatment administered during 180 days of observation.

Interventions

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CCH-aaes

Administered to participants who qualified for, and opted for, retreatment.

Intervention Type BIOLOGICAL

Observation

No treatment administered during 180 days of observation.

Intervention Type OTHER

Other Intervention Names

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EN3835 QWO™

Eligibility Criteria

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Inclusion Criteria

All Participants (Through Day 180):

1. Voluntarily sign and date an informed consent agreement
2. Have participated in and completed the double-blind Phase 3 study EN3835-302 or EN3835-303
3. Be willing to apply sunscreen to the buttocks before each exposure to the sun and/or tanning booths while participating in the study
4. Be judged to be in good health
5. Be willing and able to cooperate with the requirements of the study
6. Be able to read, complete and understand the participant reported outcomes rating instruments in English.


1\. Have a negative pregnancy test and using a stable and effective contraception method.

Exclusion Criteria

All Participants (Through Day 180):

1. Intends to or has used any of the local applications/therapies/injections/procedures that restricts study participation
2. Intends to use tanning spray or tanning booths during this period
3. Has received or intends to receive an investigational drug or treatment, other than the treatment received in study EN3835-302/303 during this period
4. Any other condition(s) that, in the Investigator's opinion, might indicate the participant to be unsuitable for the study


1\. Has received any collagenase treatments at any time since completion of the double-blind study (EN3835-302 or EN3835-303).


1\. Has systemic conditions (coagulation disorders, malignancy, keloidal scar, abnormal wound healing) that restricts study participation

* Has local (in areas to be treated) conditions (thrombosis, vascular disorder, active infection/inflammation, skin laxity, flaccidity and/or skin sagging, active cutaneous alteration, tattoo/mole) that restricts study participation
* Requires anticoagulant or antiplatelet medication during the study
* Prior to and during the course of retreatment, is nursing or providing breast milk in any manner, intends to become pregnant during the study, or intends to use tanning spray or tanning booths during the study
* Has received an investigational drug or treatment, other than treatment in study EN3835-302/303, within 30 days before retreatment with study drug
* Has a known systemic allergy to collagenase or any other excipient of study drug
* Has received any collagenase treatments at any time since completion of the double-blind study
* Any other condition(s) that, in the Investigator's opinion, might indicate the participant to be unsuitable for retreatment
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Endo Pharmaceuticals

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Karen Chajko

Role: STUDY_DIRECTOR

Endo Pharmaceuticals

Locations

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Endo Clinical Trial Site #3

Glendale, Arizona, United States

Site Status

Endo Clinical Trial Site #11

Scottsdale, Arizona, United States

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Endo Clinical Trial Site #41

North Little Rock, Arkansas, United States

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Endo Clinical Trial Site #14

Encinitas, California, United States

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Endo Clinical Trial Site #9

Long Beach, California, United States

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Endo Clinical Trial Site #35

Murrieta, California, United States

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Endo Clinical Trial Site #42

Newport Beach, California, United States

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Endo Clinical Trial Site #17

Oceanside, California, United States

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Endo Clinical Trial Site #39

San Diego, California, United States

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Endo Clinical Trial Site #23

Greenwood Village, Colorado, United States

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Endo Clinical Trial Site #38

Boca Raton, Florida, United States

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Endo Clinical Trial Site #8

Coral Gables, Florida, United States

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Endo Clinical Trial Site #40

Largo, Florida, United States

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Endo Clinical Trial Site #27

Miami, Florida, United States

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Endo Clinical Trial Site #36

Miami, Florida, United States

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Endo Clinical Trial Site #20

Snellville, Georgia, United States

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Endo Clinical Trial Site #19

Meridian, Idaho, United States

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Endo Clinical Trial Site #34

Chicago, Illinois, United States

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Endo Clinical Trial Site #30

Indianapolis, Indiana, United States

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Endo Clinical Trial Site #16

Metairie, Louisiana, United States

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Endo Clinical Trial Site #10

New Orleans, Louisiana, United States

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Endo Clinical Trial Site #25

New Orleans, Louisiana, United States

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Endo Clinical Trial Site #33

Quincy, Massachusetts, United States

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Endo Clinical Trial Site #18

Washington, Missouri, United States

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Endo Clinical Trial Site #4

Omaha, Nebraska, United States

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Endo Clinical Trial Site #24

Mount Kisco, New York, United States

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Endo Clinical Trial Site #32

New York, New York, United States

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Endo Clinical Trial Site #12

New York, New York, United States

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Endo Clinical Trial Site #15

New York, New York, United States

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Endo Clinical Trial Site #29

New York, New York, United States

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Endo Clinical Trial Site #26

Cincinnati, Ohio, United States

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Endo Clinical Trial Site #5

Nashville, Tennessee, United States

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Endo Clinical Trial Site #22

Austin, Texas, United States

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Endo Clinical Trial Site #6

Beaumont, Texas, United States

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Endo Clinical Trial Site #13

Houston, Texas, United States

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Endo Clinical Trial Site #7

Houston, Texas, United States

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Endo Clinical Trial Site #28

Pflugerville, Texas, United States

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Endo Clinical Trial Site #21

San Antonio, Texas, United States

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Endo Clinical Trial Site #37

Sugar Land, Texas, United States

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Endo Clinical Trial Site #31

Salt Lake City, Utah, United States

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Endo Clinical Trial Site #1

Charlottesville, Virginia, United States

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Endo Clinical Trial Site #2

Lynchburg, Virginia, United States

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Countries

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United States

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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EN3835-304

Identifier Type: -

Identifier Source: org_study_id

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