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Phase 2a Dose-Ranging Study to Evaluate Safety and Effectiveness of AA4500 in Treatment of Dupuytren's Disease Nodules

A Phase 2a, Double-blind, Randomized, Placebo-Controlled, Dose-Ranging Study to Evaluate the Safety and Effectiveness of AA4500 in the Treatment of Dupuytren's Disease Nodules

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02193828
Enrollment
76
Registered
2014-07-18
Start date
2014-07-31
Completion date
2014-12-31
Last updated
2017-10-05

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

Conditions

Dupuytren's Disease

Keywords

Dupuytren's nodules

Brief summary

The objectives of this study are to assess the safety and effectiveness of AA4500 in treating palmar Dupuytren's disease nodules.

Detailed description

Approximately 13 sites in the United States and Australia, approximately 90 study subjects. After all pre-injection procedures are completed on day 1, eligible men and women will be randomized in a 1:1:1 ratio to dose group and then in a 4:1 ratio to treatment group. Study drug will be administered into a palmar nodule located on the selected hand. AA4500 (collagenase clostridium histolyticum) 3 doses (low, medium, and high) after reconstitution with sterile diluent (0.3 mg/mL calcium chloride dihydrate in 0.9% sodium chloride). Each dose of study drug will be injected into the nodule. The injection will be administered in 3 different volumes according to randomization. Placebo after reconstitution with sterile diluent (0.3 mg/mL calcium chloride dihydrate in 0.9% sodium chloride). Each dose of study drug will be injected into the nodule. The injection will be administered in 3 different volumes according to randomization. Follow up visits for the evaluation of safety and efficacy will be required for all subjects on days 8, 29, and 57.

Interventions

BIOLOGICALCollagenase clostridium histolyticum

Single injection into nodule

BIOLOGICALPlacebo

Single injection into nodule

Sponsors

Endo Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

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

Inclusion criteria

1. Provide a signed and dated informed consent 2. Be a man or woman ≥ 18 years of age 3. Have a diagnosis of Dupuytren's disease AND have at least one palmar nodule on the selected hand that is: 1. Palpable 2. Measures between 0.5 cm and 2.0 cm in length and between 0.5 cm and 2.0 cm in width using hand-held calipers n 3. Not directly associated with a Dupuytren's cord 4. Have a negative urine pregnancy test at screening and before injection of study drug and be using a highly effective (ie, \< 1% failure rate) contraception method as judged by the investigator (eg, abstinence, intrauterine device \[IUD\], hormonal \[estrogen/progestin\] contraceptives, or barrier control) for at least one menstrual cycle prior to study enrollment and for the duration of the study or be surgically sterile (if female of childbearing potential); or be a postmenopausal female (no menses for at least 1 year or hysterectomy) 5. Be able to comply with the study visit schedule as specified in the protocol

Exclusion criteria

1. Received steroid injections (eg, tri-amcinolone acetonide) on the selected nodule within 3 months before administration of study drug 2. Has a chronic muscular, neurological, or neuromuscular disorder that affects the hands 3. Has a known systemic allergy to collagenase or any other excipient of AA4500 4. Has received any collagenase treatments (eg, Santyl® ointment and/or XIAFLEX®/XIAPEX®) within 30 days before injection of study drug in the hand selected for treatment 5. Is currently receiving or plans to receive anticoagulant medication or has received anticoagulant medication (except for ≤ 150 mg aspirin daily) within 7 days before injection of study drug 6. Has a known recent history of stroke, bleeding, or other medical condition, which in the investigator's opinion would make the subject unsuitable for enrollment in the study 7. Received an investigational drug within 30 days before injection of study drug 8. Is pregnant or intends on becoming pregnant during the study or is breastfeeding a child 9. Has any clinically significant medical history or condition(s), including conditions that affect the hands, that would, in the opinion of the investigator, substantially increase the risk associated with the subject's participation in the protocol or compromise the scientific objectives of the study 10. Had surgery on the selected hand within 3 months before the screening visit 11. Has jewelry on the hand to be treated that cannot be removed

Design outcomes

Primary

MeasureTime frameDescription
Percent Change From Baseline in Surface Area and Volume of the Treated Nodule at Day 57 Using Caliper MeasurementsBaseline, Day 57Percent change from baseline in surface area and volume of the treated nodule was determined from hand-held caliper measurements of the length and width of the nodule. Percent change = 100\*(Day 57 area \[or volume\] - baseline area \[or volume\])/baseline area \[or volume\]. A negative value represents the improvement from baseline (decreased size) while a positive value represents worsening.

Secondary

MeasureTime frameDescription
Change From Baseline in Consistency of the Treated Nodules at Day 57Baseline, Day 57Investigators determined the consistency of the nodule through palpitation using a 5-point scale: 5 = hard (solid), 4 = firm throughout, 3 = moderate firmness, 2 = soft, and 1 = non-palpable. The change scores could range from +4 (greatest worsening in consistency) to -4 (greatest improvement in consistency); a negative change from baseline value reflects improvement from baseline (softening) while a positive value reflects worsening.
Percent Change From Baseline in Hardness of the Treated Nodule at Day 57Baseline, Day 57A durometer was used to assess nodule hardness on a scale of 0 (soft) to 100 (hard). Percent change = 100\*(Day 57 hardness - baseline hardness)/baseline hardness. A negative value represents the improvement from baseline (softening) while a positive value represents worsening.
Change From Baseline in Nodular Pain of the Treated Nodule at Day 57Baseline, Day 57After the nodule was squeezed using a dynamometer, subjects were asked to rate the amount of pain they felt on an 11-point visual analog scale (VAS) from 0 (no pain or discomfort) to 10 (extreme pain or discomfort). A negative change from baseline value reflects improvement from baseline (less pain) while a positive value reflects worsening.
Percent Change From Baseline in Surface Area and Volume of the Treated Nodule at Day 57 Using UltrasoundBaseline, Day 57Percent change from baseline in surface area and volume of the treated nodule was determined from ultrasound measurements of the length, width, and depth of the nodule. Percent change = 100\*(Day 57 area \[or volume\] - baseline area \[or volume\])/baseline area \[or volume\]. A negative value represents the improvement from baseline (decreased size) while a positive value represents worsening.
Subject Satisfaction With TreatmentDay 57Subjects were asked to rate their satisfaction with treatment on a 5-point scale: 1 = very satisfied, 2 = quite satisfied, 3 = neither satisfied nor dissatisfied, 4 = quite dissatisfied, and 5 = very dissatisfied.
Composite Responder AnalysisDay 57A composite responder is a subject who had an improved assessment \[values of 1 (very much improved), 2 (much improved), or 3 (minimally improved)\] on the investigator global assessment and had a satisfied assessment \[values of 1 (very satisfied) or 2 (quite satisfied)\] on the subject assessment.
Investigator Global Assessment of Improvement With TreatmentDay 57Investigators were asked to determine the degree of improvement in the subject's treated nodule compared with screening on a 7-point scale: 1 = very much improved, 2 = much improved, 3 = minimally improved, 4 = no change, 5 = minimally worse, 6 = much worse, and 7 = very much worse.

Countries

Australia, United States

Participant flow

Participants by arm

ArmCount
AA4500 0.60 mg
Collagenase clostridium histolyticum (AA4500), single 0.60 mg injection into the nodule
18
AA4500 0.40 mg
Collagenase clostridium histolyticum (AA4500), single 0.40 mg injection into the nodule
18
AA4500 0.25 mg
Collagenase clostridium histolyticum (AA4500), single 0.25 mg injection into the nodule
22
Placebo
Placebo, single 0.25 mg, 0.40 mg, or 0.60 mg injection into the nodule
17
Total75

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyWithdrawal by Subject0011

Baseline characteristics

CharacteristicAA4500 0.60 mgAA4500 0.40 mgAA4500 0.25 mgPlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
5 Participants6 Participants6 Participants6 Participants23 Participants
Age, Categorical
Between 18 and 65 years
13 Participants12 Participants16 Participants11 Participants52 Participants
Age, Continuous62.0 years60.0 years57.0 years58.0 years58.0 years
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants1 Participants1 Participants1 Participants4 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
17 Participants17 Participants21 Participants16 Participants71 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants1 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
18 Participants17 Participants22 Participants17 Participants74 Participants
Region of Enrollment
Australia
6 participants8 participants8 participants5 participants27 participants
Region of Enrollment
United States
12 participants10 participants14 participants12 participants48 participants
Sex: Female, Male
Female
6 Participants10 Participants11 Participants7 Participants34 Participants
Sex: Female, Male
Male
12 Participants8 Participants11 Participants10 Participants41 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —
other
Total, other adverse events
17 / 1818 / 1821 / 227 / 17
serious
Total, serious adverse events
0 / 180 / 180 / 220 / 17

Outcome results

Primary

Percent Change From Baseline in Surface Area and Volume of the Treated Nodule at Day 57 Using Caliper Measurements

Percent change from baseline in surface area and volume of the treated nodule was determined from hand-held caliper measurements of the length and width of the nodule. Percent change = 100\*(Day 57 area \[or volume\] - baseline area \[or volume\])/baseline area \[or volume\]. A negative value represents the improvement from baseline (decreased size) while a positive value represents worsening.

Time frame: Baseline, Day 57

Population: Analysis based on Modified Intent-to-Treat (mITT) population; all randomized subjects who received study medication and had pre- and post-baseline nodule measurements for ultrasound and calipers. Analytical outliers (subjects whose percent change in ultrasound volume was greater than the 75th percentile + 3× the interquartile range) were excluded.

ArmMeasureGroupValue (MEAN)Dispersion
AA4500 0.60 mgPercent Change From Baseline in Surface Area and Volume of the Treated Nodule at Day 57 Using Caliper MeasurementsSurface Area-81.61 percentage of changeStandard Deviation 20.251
AA4500 0.60 mgPercent Change From Baseline in Surface Area and Volume of the Treated Nodule at Day 57 Using Caliper MeasurementsVolume-89.03 percentage of changeStandard Deviation 15.016
AA4500 0.40 mgPercent Change From Baseline in Surface Area and Volume of the Treated Nodule at Day 57 Using Caliper MeasurementsVolume-87.58 percentage of changeStandard Deviation 16.372
AA4500 0.40 mgPercent Change From Baseline in Surface Area and Volume of the Treated Nodule at Day 57 Using Caliper MeasurementsSurface Area-80.11 percentage of changeStandard Deviation 21.459
AA4500 0.25 mgPercent Change From Baseline in Surface Area and Volume of the Treated Nodule at Day 57 Using Caliper MeasurementsSurface Area-58.30 percentage of changeStandard Deviation 29.849
AA4500 0.25 mgPercent Change From Baseline in Surface Area and Volume of the Treated Nodule at Day 57 Using Caliper MeasurementsVolume-68.15 percentage of changeStandard Deviation 33.859
PlaceboPercent Change From Baseline in Surface Area and Volume of the Treated Nodule at Day 57 Using Caliper MeasurementsSurface Area-41.76 percentage of changeStandard Deviation 32.445
PlaceboPercent Change From Baseline in Surface Area and Volume of the Treated Nodule at Day 57 Using Caliper MeasurementsVolume-49.13 percentage of changeStandard Deviation 36.736
Comparison: For surface areap-value: <0.0001ANOVA
Comparison: For surface areap-value: <0.0001ANOVA
Comparison: For surface areap-value: <0.0001ANOVA
Comparison: For surface areap-value: 0.0713ANOVA
Comparison: For volumep-value: 0.0002ANOVA
Comparison: For volumep-value: 0.0001ANOVA
Comparison: For volumep-value: 0.0001ANOVA
Comparison: For volumep-value: 0.0446ANOVA
Secondary

Change From Baseline in Consistency of the Treated Nodules at Day 57

Investigators determined the consistency of the nodule through palpitation using a 5-point scale: 5 = hard (solid), 4 = firm throughout, 3 = moderate firmness, 2 = soft, and 1 = non-palpable. The change scores could range from +4 (greatest worsening in consistency) to -4 (greatest improvement in consistency); a negative change from baseline value reflects improvement from baseline (softening) while a positive value reflects worsening.

Time frame: Baseline, Day 57

Population: Analysis based on mITT population; all randomized subjects who received an injection of study medication and had pre- and post-baseline nodule measurements for both ultrasound and calipers. Subjects with an incomplete assessment (not done) on Day 57 were excluded.

ArmMeasureValue (MEAN)Dispersion
AA4500 0.60 mgChange From Baseline in Consistency of the Treated Nodules at Day 57-1.9 units on a scaleStandard Deviation 0.93
AA4500 0.40 mgChange From Baseline in Consistency of the Treated Nodules at Day 57-1.9 units on a scaleStandard Deviation 1.05
AA4500 0.25 mgChange From Baseline in Consistency of the Treated Nodules at Day 57-1.2 units on a scaleStandard Deviation 1.1
PlaceboChange From Baseline in Consistency of the Treated Nodules at Day 57-0.3 units on a scaleStandard Deviation 0.96
p-value: 0.0002Kruskal-Wallis
p-value: <0.0001Wilcoxon (Mann-Whitney)
p-value: 0.0002Wilcoxon (Mann-Whitney)
p-value: 0.0139Wilcoxon (Mann-Whitney)
Secondary

Change From Baseline in Nodular Pain of the Treated Nodule at Day 57

After the nodule was squeezed using a dynamometer, subjects were asked to rate the amount of pain they felt on an 11-point visual analog scale (VAS) from 0 (no pain or discomfort) to 10 (extreme pain or discomfort). A negative change from baseline value reflects improvement from baseline (less pain) while a positive value reflects worsening.

Time frame: Baseline, Day 57

Population: Analysis based on mITT population; all randomized subjects who received an injection of study medication and had pre- and post-baseline nodule measurements for both ultrasound and calipers. Subjects with an incomplete assessment (not done) on Day 57 were excluded.

ArmMeasureValue (MEAN)Dispersion
AA4500 0.60 mgChange From Baseline in Nodular Pain of the Treated Nodule at Day 57-0.8 units on a scaleStandard Deviation 1.97
AA4500 0.40 mgChange From Baseline in Nodular Pain of the Treated Nodule at Day 57-1.6 units on a scaleStandard Deviation 2.21
AA4500 0.25 mgChange From Baseline in Nodular Pain of the Treated Nodule at Day 57-1.7 units on a scaleStandard Deviation 2.57
PlaceboChange From Baseline in Nodular Pain of the Treated Nodule at Day 57-0.5 units on a scaleStandard Deviation 1.77
p-value: 0.3135ANOVA
p-value: 0.7249ANOVA
p-value: 0.1573ANOVA
p-value: 0.1234ANOVA
Secondary

Composite Responder Analysis

A composite responder is a subject who had an improved assessment \[values of 1 (very much improved), 2 (much improved), or 3 (minimally improved)\] on the investigator global assessment and had a satisfied assessment \[values of 1 (very satisfied) or 2 (quite satisfied)\] on the subject assessment.

Time frame: Day 57

Population: Analysis based on mITT population; all randomized subjects who received an injection of study medication and had pre- and post-baseline nodule measurements for both ultrasound and calipers.

ArmMeasureGroupValue (NUMBER)
AA4500 0.60 mgComposite Responder AnalysisResponder: Yes14 participants
AA4500 0.60 mgComposite Responder AnalysisResponder: No4 participants
AA4500 0.40 mgComposite Responder AnalysisResponder: No2 participants
AA4500 0.40 mgComposite Responder AnalysisResponder: Yes16 participants
AA4500 0.25 mgComposite Responder AnalysisResponder: Yes12 participants
AA4500 0.25 mgComposite Responder AnalysisResponder: No10 participants
PlaceboComposite Responder AnalysisResponder: Yes6 participants
PlaceboComposite Responder AnalysisResponder: No10 participants
p-value: 0.0065Fisher Exact
p-value: 0.0349Fisher Exact
p-value: 0.0033Fisher Exact
p-value: 0.3423Fisher Exact
Secondary

Investigator Global Assessment of Improvement With Treatment

Investigators were asked to determine the degree of improvement in the subject's treated nodule compared with screening on a 7-point scale: 1 = very much improved, 2 = much improved, 3 = minimally improved, 4 = no change, 5 = minimally worse, 6 = much worse, and 7 = very much worse.

Time frame: Day 57

Population: Analysis based on mITT population; all randomized subjects who received an injection of study medication and had pre- and post-baseline nodule measurements for both ultrasound and calipers.

ArmMeasureValue (MEAN)Dispersion
AA4500 0.60 mgInvestigator Global Assessment of Improvement With Treatment1.7 units on a scaleStandard Deviation 0.84
AA4500 0.40 mgInvestigator Global Assessment of Improvement With Treatment1.7 units on a scaleStandard Deviation 0.75
AA4500 0.25 mgInvestigator Global Assessment of Improvement With Treatment2.5 units on a scaleStandard Deviation 1.1
PlaceboInvestigator Global Assessment of Improvement With Treatment3.0 units on a scaleStandard Deviation 1.15
p-value: 0.0006Kruskal-Wallis
p-value: 0.0014Wilcoxon (Mann-Whitney)
p-value: 0.0012Wilcoxon (Mann-Whitney)
p-value: 0.1298Wilcoxon (Mann-Whitney)
Secondary

Percent Change From Baseline in Hardness of the Treated Nodule at Day 57

A durometer was used to assess nodule hardness on a scale of 0 (soft) to 100 (hard). Percent change = 100\*(Day 57 hardness - baseline hardness)/baseline hardness. A negative value represents the improvement from baseline (softening) while a positive value represents worsening.

Time frame: Baseline, Day 57

Population: Analysis based on mITT population; all randomized subjects who received an injection of study medication and had pre- and post-baseline nodule measurements for both ultrasound and calipers. Subjects with an incomplete assessment (not done) on Day 57 were excluded.

ArmMeasureValue (MEAN)Dispersion
AA4500 0.60 mgPercent Change From Baseline in Hardness of the Treated Nodule at Day 57-17.05 percentage of changeStandard Deviation 15.584
AA4500 0.40 mgPercent Change From Baseline in Hardness of the Treated Nodule at Day 57-30.40 percentage of changeStandard Deviation 24.93
AA4500 0.25 mgPercent Change From Baseline in Hardness of the Treated Nodule at Day 57-17.87 percentage of changeStandard Deviation 22.265
PlaceboPercent Change From Baseline in Hardness of the Treated Nodule at Day 574.80 percentage of changeStandard Deviation 23.959
p-value: 0.0004ANOVA
p-value: 0.0075ANOVA
p-value: <0.0001ANOVA
p-value: 0.0031ANOVA
Secondary

Percent Change From Baseline in Surface Area and Volume of the Treated Nodule at Day 57 Using Ultrasound

Percent change from baseline in surface area and volume of the treated nodule was determined from ultrasound measurements of the length, width, and depth of the nodule. Percent change = 100\*(Day 57 area \[or volume\] - baseline area \[or volume\])/baseline area \[or volume\]. A negative value represents the improvement from baseline (decreased size) while a positive value represents worsening.

Time frame: Baseline, Day 57

Population: Analysis based on mITT population; all randomized subjects who received study medication and had pre- and post-baseline nodule measurements for ultrasound and calipers. Analytical outliers (subjects whose percent change in ultrasound volume was greater than the 75th percentile + 3× the interquartile range) were excluded.

ArmMeasureGroupValue (MEAN)Dispersion
AA4500 0.60 mgPercent Change From Baseline in Surface Area and Volume of the Treated Nodule at Day 57 Using UltrasoundSurface Area-34.23 percentage of changeStandard Deviation 41.353
AA4500 0.60 mgPercent Change From Baseline in Surface Area and Volume of the Treated Nodule at Day 57 Using UltrasoundVolume-40.99 percentage of changeStandard Deviation 46.612
AA4500 0.40 mgPercent Change From Baseline in Surface Area and Volume of the Treated Nodule at Day 57 Using UltrasoundVolume-13.01 percentage of changeStandard Deviation 68.804
AA4500 0.40 mgPercent Change From Baseline in Surface Area and Volume of the Treated Nodule at Day 57 Using UltrasoundSurface Area-19.37 percentage of changeStandard Deviation 39.658
AA4500 0.25 mgPercent Change From Baseline in Surface Area and Volume of the Treated Nodule at Day 57 Using UltrasoundSurface Area-10.30 percentage of changeStandard Deviation 41.696
AA4500 0.25 mgPercent Change From Baseline in Surface Area and Volume of the Treated Nodule at Day 57 Using UltrasoundVolume-9.52 percentage of changeStandard Deviation 60.156
PlaceboPercent Change From Baseline in Surface Area and Volume of the Treated Nodule at Day 57 Using UltrasoundSurface Area-4.54 percentage of changeStandard Deviation 54.784
PlaceboPercent Change From Baseline in Surface Area and Volume of the Treated Nodule at Day 57 Using UltrasoundVolume-7.19 percentage of changeStandard Deviation 69.877
Comparison: For surface areap-value: 0.2431ANOVA
Comparison: For surface areap-value: 0.0625ANOVA
Comparison: For surface areap-value: 0.3409ANOVA
Comparison: For surface areap-value: 0.704ANOVA
Comparison: For volumep-value: 0.3556ANOVA
Comparison: For volumep-value: 0.1275ANOVA
Comparison: For volumep-value: 0.7883ANOVA
Comparison: For volumep-value: 0.9123ANOVA
Secondary

Subject Satisfaction With Treatment

Subjects were asked to rate their satisfaction with treatment on a 5-point scale: 1 = very satisfied, 2 = quite satisfied, 3 = neither satisfied nor dissatisfied, 4 = quite dissatisfied, and 5 = very dissatisfied.

Time frame: Day 57

Population: Analysis based on mITT population; all randomized subjects who received an injection of study medication and had pre- and post-baseline nodule measurements for both ultrasound and calipers.

ArmMeasureValue (MEAN)Dispersion
AA4500 0.60 mgSubject Satisfaction With Treatment1.5 units on a scaleStandard Deviation 0.79
AA4500 0.40 mgSubject Satisfaction With Treatment1.6 units on a scaleStandard Deviation 0.85
AA4500 0.25 mgSubject Satisfaction With Treatment2.3 units on a scaleStandard Deviation 1.17
PlaceboSubject Satisfaction With Treatment2.8 units on a scaleStandard Deviation 1.34
p-value: 0.0048Kruskal-Wallis
p-value: 0.0034Wilcoxon (Mann-Whitney)
p-value: 0.0079Wilcoxon (Mann-Whitney)
p-value: 0.3216Wilcoxon (Mann-Whitney)

Source: ClinicalTrials.gov · Data processed: Feb 26, 2026