MedPath

Safety and Efficacy of Two Concurrent Injections of AA4500 in Adult Subjects With Multiple Dupuytren's Contractures

Phase 3
Completed
Conditions
Dupuytren's Contracture
Interventions
Biological: XIAFLEX / XIAPEX
Registration Number
NCT01674634
Lead Sponsor
Endo Pharmaceuticals
Brief Summary

The primary objective of this study is to assess the safety of two concurrent injections of AA4500 into the same hand in subjects with multiple Dupuytren's contractures with palpable cords followed 24 to 72 hours later by a finger extension procedure and compare the rate of occurrence of targeted serious adverse events (tendon rupture/ligament injury and anaphylaxis) to historical rates of the same in clinical studies and post-marketing commercial use.

The secondary objective is to evaluate the efficacy of two concurrent injections of AA4500.

Detailed Description

Methodology/Study Design: After all pre-injection procedures are completed on Day 1, eligible men and women will receive two concurrent injections AA4500 (AA4500/AA4500) into cord(s) affecting MP and/or PIP joints on the same or different fingers in the selected hand. A finger extension procedure to facilitate cord disruption will be performed (after administration of local anesthesia, if needed) 24 to 72 hours after injection in those subjects who do not have spontaneous disruption of their cord(s).

Follow up visits for the evaluation of safety and efficacy will be required for all subjects 24 to 72 hours after injection, and on Days 15, 31, and 61.

Upon completion of the day 61 follow-up visit (end of study visit), subjects who require additional treatment in the treated hand may receive up to three additional injections of AA4500 according to the XIAFLEX package insert. Subjects may receive up to a total of five injections and individual cords may receive up to a total of three injections. Subjects who require additional treatment will be followed for safety.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
715
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 2 fixed-flexion contractures on the same hand that are ≥ 20º in PIP and/or MP joints in fingers, other than the thumbs, which are caused by palpable cord(s) suitable for treatment
  4. Have a positive "table top test" defined as the inability to simultaneously place the affected finger(s) and palm flat against a table top
  5. 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).
  6. Be able to comply with the study visit schedule as specified in the protocol
Exclusion Criteria

A subject will be excluded from study participation if he/she:

  1. Received surgery (fasciectomy or surgical fasciotomy) and/or needle aponeurotomy/fasciotomy on the selected joints to be treated within 6 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. Has jewelry on the hand to be treated that cannot be removed

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
XIAFLEX / XIAPEXXIAFLEX / XIAPEXAA4500 (collagenase clostridium histolyticum)
Primary Outcome Measures
NameTimeMethod
Percent Change From Baseline in Total Fixed FlexionBaseline, Day 31

Percent change from baseline in total fixed flexion = 100 \* (baseline total FFC - day 31 total FFC)/baseline total FFC, where total fixed flexion is defined as the sum of the fixed flexion contracture (FCC) of the 2 joints receiving treatment. Positive percent change from baseline indicates improvement.

Change From Baseline in Total Range of MotionBaseline, Day 31

The total range of motion (ROM) is the sum of the range of motion measurements of the 2 treated joints. ROM is defined as difference between full flexion angle and full extension expressed in degrees. A positive change from baseline indicates increased (improved) ROM.

Secondary Outcome Measures
NameTimeMethod
Clinical SuccessWithin 30 days

Clinical success is defined as reduction of FFC of a treated joint to within 0-5 degrees of normal within 30 days of injection

Clinical ImprovementWithin 30 days

Clinical improvement is defined as a reduction of FFC by 50% or greater of the baseline value within 30 days of injection

Subject Assessment of Satisfaction With Treatment at Day 31Day 31

Subject's were asked to rate satisfaction with treatment at the day 31 follow-up visit

Subject Assessment of Satisfaction With Treatment at Day 61Day 61

Subject's were asked to rate satisfaction with treatment at the day 61 follow-up visit

Investigator Assessment of Improvement With Treatment at Day 31Day 31

Investigator's determined the degree of improvement in the severity of the subject's treated finger(s) compared with screening at the day 31 follow-up visit.

Investigator Assessment of Improvement With Treatment at Day 61Day 61

Investigator's determined the degree of improvement in the severity of the subject's treated finger(s) compared with screening at the day 61 follow-up visit.

Change From Baseline for Unité Rhumatologique Des Affections de la Main Scale at Day 31Baseline, Day 31

The Unité Rhumatologique des Affections de la Main (URAM) scale is a patient-reported functional 9-item scale (total score 0-45) developed and validated to assess functional outcome of patients suffering from Dupuytren's disease with higher scores indicating greater difficulty using the hand.The estimated clinically important change of the URAM scale is 2.9 points. A decrease in total URAM score indicates improvement in hand function.

Change From Baseline for Unité Rhumatologique Des Affections de la Main Scale at Day 61Baseline, Day 61

The URAM scale is a patient-reported functional 9-item scale (total score 0-45) developed and validated to assess functional outcome of patients suffering from Dupuytren's disease with higher scores indicating greater difficulty using the hand.The estimated clinically important change of the URAM scale is 2.9 points. A decrease in total URAM score indicates improvement in hand function.

Trial Locations

Locations (25)

Tucson Orthopaedic Institute

🇺🇸

Tucson, Arizona, United States

The Hand and Upper Extremity Center

🇺🇸

Atlanta, Georgia, United States

The Indiana Hand to Shoulder Center

🇺🇸

Indianapolis, Indiana, United States

Missoula Bone and Joint

🇺🇸

Missoula, Montana, United States

The Center for Neurosurgical and Orthopedic Care and Research

🇺🇸

Bend, Oregon, United States

Hand Microsurgery & Reconstructive Orthopaedics

🇺🇸

Erie, Pennsylvania, United States

HOPE Research Institute

🇺🇸

Phoenix, Arizona, United States

TRIA Orthopedic Center

🇺🇸

Minneapolis, Minnesota, United States

Nevada Orthopedic and Spine Center

🇺🇸

Las Vegas, Nevada, United States

Health Research Institute

🇺🇸

Oklahoma City, Oklahoma, United States

Accurate Clinical Research, Inc.

🇺🇸

Houston, Texas, United States

SUNY Stony Brook

🇺🇸

Setauket, New York, United States

UNC School of Medicine

🇺🇸

Chapel Hill, North Carolina, United States

OrthoCarolina Research Institute, Inc.

🇺🇸

Charlotte, North Carolina, United States

Rockford Orthopedic Associates

🇺🇸

Rockford, Illinois, United States

Brigid Freyne, MD, Inc.

🇺🇸

Murrieta, California, United States

CORE Orthopaedic Medical Center

🇺🇸

Encinitas, California, United States

Central Jersey Hand Surgery

🇺🇸

Eatontown, New Jersey, United States

Hospital for Special Surgery

🇺🇸

New York, New York, United States

Alpha Clinical Research, LLC

🇺🇸

Clarksville, Tennessee, United States

The Arthritis Clinic of Northern Virginia, PA

🇺🇸

Arlington, Virginia, United States

Torrey Pines Medical Group

🇺🇸

La Jolla, California, United States

Lake Cumberland Rheumatology

🇺🇸

Somerset, Kentucky, United States

Christine M. Kleinert Institute for Hand and Microsurgery, Inc.

🇺🇸

Louisville, Kentucky, United States

University of Kansas Medical Center

🇺🇸

Kansas City, Kansas, United States

© Copyright 2025. All Rights Reserved by MedPath