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AA4500 (XIAFLEX™, Proposed Name) in the Treatment of Advanced Dupuytren's Disease

A Phase 3, Open-Label Extension Study of the Safety and Efficacy of AA4500 in the Treatment of Subjects With Advanced Dupuytren's Disease

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00528424
Enrollment
286
Registered
2007-09-12
Start date
2007-12-31
Completion date
2008-11-30
Last updated
2017-12-02

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

Conditions

Advanced Dupuytren's Disease

Brief summary

Study AUX-CC-858 was an open-label continuation of the double-blind Study AUX-CC-857 (NCT00528606). Subjects who complete the Day 90 visit after their initial injection in Study AUX-CC-857 (NCT00528606) entered into Study AUX-CC-858. Subjects who required further treatment in Study AUX-CC-858, either because their treated metacarpophalangeal and/or proximal interphalangeal (PIP) joints did not have a reduction in contracture to 5° or less, the cord affecting that joint received less than three injections of AA4500, or they had other eligible cords that received no treatment in AUX-CC-857 (NCT00528606), had the option to receive up to five injections of AA4500 in this extension study. Subjects requiring further treatment were followed for efficacy and safety on Days 1, 7, and 30 after each injection, with injections separated by four weeks. Follow-up visits for the determination of efficacy and safety were conducted on Day 90, Month 6, and Month 9. This study was designed to be part of the larger clinical program, for adult patients with Dupuytren's contracture with a palpable cord, where the data from 2 pivotal Placebo-Controlled studies (AUX-CC-857 (NCT00528606) and AUX-CC-859 (NCT00533273)) and 7 non-pivotal studies were evaluated.

Interventions

BIOLOGICALAA4500

Subjects may have received up to five injections of AA4500 0.58 mg into the cords of the affected hand, with each injection separated by at least 30 days. Individual cords may have received up to a maximum of three AA4500 injections.

Sponsors

Endo Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Subjects with a diagnosis of advanced Dupuytren's disease, with a fixed flexion deformity of at least one finger, other than the thumb, that had a contracture at least 20°, but not greater than 100° for MP (80° for PIP) joints, caused by a palpable cord. * Had a positive table top test, defined as the inability to simultaneously place the affected finger(s) and palm flat against a table top. * Were naïve to AA4500 treatment or had received only one or two injections of AA4500 for the treatment of advanced Dupuytren's disease in AUX-CC-857 ((NCT00528606). * Were judged to be in good health. * Must have participated in protocol AUX-CC-857 (NCT00528606).

Exclusion criteria

* Had a chronic muscular, neurological, or neuromuscular disorder that affected the hands. * Had received treatment for advanced Dupuytren's disease within 90 days of enrollment on the joint selected for the initial injection of AA4500, including surgery (fasciectomy or surgical fasciotomy), needle aponeurotomy/fasciotomy, or injection of verapamil and/or interferon. * Had a known recent history of stroke, bleeding, a disease process that affected the hands, or other medical condition, which in the investigator's opinion, would make the subject unsuitable for enrollment in the study.

Design outcomes

Primary

MeasureTime frameDescription
Reduction in Contracture to 5° or LessWithin 30 days after last injectionSuccessfully treated or clinical success in non-primary joints defined as reduction in contracture to within 0-5° of normal within 30 days of injection.

Secondary

MeasureTime frameDescription
Percent Reduction From Baseline Contracture After the Last InjectionBaseline, Day 30 after last injectionPercent change in degree of contracture in non-primary joints measured as 100 \* (baseline contracture - last available post-injection contracture)/baseline contracture.
Change From Baseline Range of Motion After the Last InjectionBaseline, Day 30 after last injectionChange in degree of range of motion in non-primary joints measured as last available post-injection range of motion - baseline range of motion
Time to Reach Clinical SuccessWithin 30 days after last injectionClinical success in non-primary joints defined as reduction in contracture to within 0-5° of normal within 30 days of injection, displayed in post injection time point categories
Clinical Improvement After the Last InjectionBaseline, within 30 days after last injectionClinical improvement in non-primary joints defined as ≥50% reduction from baseline in the degree of contracture within 30 days after injection
Clinical Improvement After the First InjectionBaseline, within 30 days after first injectionClinical improvement in non-primary joints defined as ≥50% reduction from baseline in the degree of contracture within 30 days after injection
Percent Reduction From Baseline Contracture After the First InjectionBaseline, Day 30 after first injectionPercent change in degree of contracture in non-primary joints measured as 100 \* (baseline contracture - last available post-injection contracture)/baseline contracture.
Change From Baseline Range of Motion After the First InjectionBaseline, Day 30 after first injectionChange in degree of range of motion in non-primary joints measured as last available post-injection range of motion - baseline range of motion
Clinical Success After the First InjectionWithin 30 days after first injectionClinical success in non-primary joints defined as reduction in contracture to within 0-5° of normal within 30 days of injection.

Countries

United States

Participant flow

Participants by arm

ArmCount
AA4500 0.58 mg
Collagenase clostridium histolyticum 0.58 mg injected into MP and/or PIP joints
286
Total286

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdministrative reason2
Overall StudyLost to Follow-up13
Overall StudyOther12
Overall StudyWithdrew consent2

Baseline characteristics

CharacteristicAA4500 0.58 mg
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
120 Participants
Age, Categorical
Between 18 and 65 years
166 Participants
Age, Continuous62.7 years
STANDARD_DEVIATION 9.5
Race/Ethnicity, Customized
Hispanic
1 participants
Race/Ethnicity, Customized
White
285 participants
Region of Enrollment
United States
286 participants
Sex: Female, Male
Female
60 Participants
Sex: Female, Male
Male
226 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
171 / 286
serious
Total, serious adverse events
9 / 286

Outcome results

Primary

Reduction in Contracture to 5° or Less

Successfully treated or clinical success in non-primary joints defined as reduction in contracture to within 0-5° of normal within 30 days of injection.

Time frame: Within 30 days after last injection

Population: Evaluable non-primary joints treated with AA4500 with baseline fixed flexion contracture \>5° and at least 1 post-injection contracture measurement. For the purpose of analysis, 13 subjects with non-primary joints treated with AA4500 in double-blind study AUX-CC-857 are included in overall number of participants.

ArmMeasureValue (NUMBER)
AA4500 0.58 mgReduction in Contracture to 5° or Less41.9 Percentage of joints
Secondary

Change From Baseline Range of Motion After the First Injection

Change in degree of range of motion in non-primary joints measured as last available post-injection range of motion - baseline range of motion

Time frame: Baseline, Day 30 after first injection

Population: Evaluable non-primary joints treated with AA4500 with baseline fixed flexion contracture \>5° and at least 1 post-injection contracture measurement. For the purpose of analysis, 13 subjects with non-primary joints treated with AA4500 in double-blind study AUX-CC-857 are included in overall number of participants.

ArmMeasureValue (MEAN)Dispersion
AA4500 0.58 mgChange From Baseline Range of Motion After the First Injection20 DegreesStandard Deviation 19.46
Secondary

Change From Baseline Range of Motion After the Last Injection

Change in degree of range of motion in non-primary joints measured as last available post-injection range of motion - baseline range of motion

Time frame: Baseline, Day 30 after last injection

Population: Evaluable non-primary joints treated with AA4500 with baseline fixed flexion contracture \>5° and at least 1 post-injection contracture measurement. For the purpose of analysis, 13 subjects with non-primary joints treated with AA4500 in double-blind study AUX-CC-857 are included in overall number of participants.

ArmMeasureValue (MEAN)Dispersion
AA4500 0.58 mgChange From Baseline Range of Motion After the Last Injection24.0 DegreesStandard Deviation 20.83
Secondary

Clinical Improvement After the First Injection

Clinical improvement in non-primary joints defined as ≥50% reduction from baseline in the degree of contracture within 30 days after injection

Time frame: Baseline, within 30 days after first injection

Population: Evaluable non-primary joints treated with AA4500 with baseline fixed flexion contracture \>5° and at least 1 post-injection contracture measurement. For the purpose of analysis, 13 subjects with non-primary joints treated with AA4500 in double-blind study AUX-CC-857 are included in overall number of participants.

ArmMeasureValue (NUMBER)
AA4500 0.58 mgClinical Improvement After the First Injection56.3 Percentage of Joints
Secondary

Clinical Improvement After the Last Injection

Clinical improvement in non-primary joints defined as ≥50% reduction from baseline in the degree of contracture within 30 days after injection

Time frame: Baseline, within 30 days after last injection

Population: Evaluable non-primary joints treated with AA4500 with baseline fixed flexion contracture \>5° and at least 1 post-injection contracture measurement. For the purpose of analysis, 13 subjects with non-primary joints treated with AA4500 in double-blind study AUX-CC-857 are included in overall number of participants.

ArmMeasureValue (NUMBER)
AA4500 0.58 mgClinical Improvement After the Last Injection65.0 Percentage of joints
Secondary

Clinical Success After the First Injection

Clinical success in non-primary joints defined as reduction in contracture to within 0-5° of normal within 30 days of injection.

Time frame: Within 30 days after first injection

Population: Evaluable non-primary joints treated with AA4500 with baseline fixed flexion contracture \>5° and at least 1 post-injection contracture measurement. For the purpose of analysis, 13 subjects with non-primary joints treated with AA4500 in double-blind study AUX-CC-857 are included in overall number of participants.

ArmMeasureValue (NUMBER)
AA4500 0.58 mgClinical Success After the First Injection34.1 Percentage of Joints
Secondary

Percent Reduction From Baseline Contracture After the First Injection

Percent change in degree of contracture in non-primary joints measured as 100 \* (baseline contracture - last available post-injection contracture)/baseline contracture.

Time frame: Baseline, Day 30 after first injection

Population: Evaluable non-primary joints treated with AA4500 with baseline fixed flexion contracture \>5° and at least 1 post-injection contracture measurement. For the purpose of analysis, 13 subjects with non-primary joints treated with AA4500 in double-blind study AUX-CC-857 are included in overall number of participants.

ArmMeasureValue (MEAN)Dispersion
AA4500 0.58 mgPercent Reduction From Baseline Contracture After the First Injection53.9 Percentage of changeStandard Deviation 38.64
Secondary

Percent Reduction From Baseline Contracture After the Last Injection

Percent change in degree of contracture in non-primary joints measured as 100 \* (baseline contracture - last available post-injection contracture)/baseline contracture.

Time frame: Baseline, Day 30 after last injection

Population: Evaluable non-primary joints treated with AA4500 with baseline fixed flexion contracture \>5° and at least 1 post-injection contracture measurement. For the purpose of analysis, 13 subjects with non-primary joints treated with AA4500 in double-blind study AUX-CC-857 are included in overall number of participants.

ArmMeasureValue (MEAN)Dispersion
AA4500 0.58 mgPercent Reduction From Baseline Contracture After the Last Injection60.8 Percentage of changeStandard Deviation 39
Secondary

Time to Reach Clinical Success

Clinical success in non-primary joints defined as reduction in contracture to within 0-5° of normal within 30 days of injection, displayed in post injection time point categories

Time frame: Within 30 days after last injection

Population: Evaluable non-primary joints treated with AA4500 with baseline fixed flexion contracture \>5° and at least 1 post-injection contracture measurement. For the purpose of analysis, 13 subjects with non-primary joints treated with AA4500 in double-blind study AUX-CC-857 are included in overall number of participants.

ArmMeasureGroupValue (NUMBER)
AA4500 0.58 mgTime to Reach Clinical SuccessInjection 1, Day 112.5 Percentage of Joints
AA4500 0.58 mgTime to Reach Clinical SuccessInjection 1, Day 715.9 Percentage of Joints
AA4500 0.58 mgTime to Reach Clinical SuccessInjection 2, Day 00.0 Percentage of Joints
AA4500 0.58 mgTime to Reach Clinical SuccessInjection 2, Day 12.2 Percentage of Joints
AA4500 0.58 mgTime to Reach Clinical SuccessInjection 2, Day 71.3 Percentage of Joints
AA4500 0.58 mgTime to Reach Clinical SuccessInjection 2, Day 301.9 Percentage of Joints
AA4500 0.58 mgTime to Reach Clinical SuccessInjection 3, Day 00.0 Percentage of Joints
AA4500 0.58 mgTime to Reach Clinical SuccessInjection 3, Day 11.3 Percentage of Joints
AA4500 0.58 mgTime to Reach Clinical SuccessInjection 3, Day 70.6 Percentage of Joints
AA4500 0.58 mgTime to Reach Clinical SuccessInjection 3, Day 300.3 Percentage of Joints
AA4500 0.58 mgTime to Reach Clinical SuccessDid not reach Clinical Success58.1 Percentage of Joints
AA4500 0.58 mgTime to Reach Clinical SuccessInjection 1, Day 305.9 Percentage of Joints

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