Pharmacokinetics of a Single Treatment Cycle of AA4500 0.58 mg in Men With Peyronie's Disease

NCT01430169 | Completed Phase 2 Results

• 1 other identifier: AUX-CC-805
• Study Type: interventional
• Target: 20
• Locations: 1 country
• Sites: 1

Brief Summary

This study is a Phase 2, open-label study to assess the pharmacokinetics (PK) and safety of AA4500 0.58 mg in men with Peyronie's disease. Subjects will be screened for study eligibility within 21 days before the initial injection of study drug. Two injections will be administered 24 hours apart. Subjects will be admitted to the study unit the day before the first injection of AA4500 (Day -1) and will remain in the study unit until after the PK sample is collected after investigator penile plaque modeling on Day 3. Subjects will return to the study unit on Day 4, Day 8, and Day 29 for follow-up pharmacokinetic and safety assessments.Pharmacokinetic plasma samples will be collected at predetermined time points before (15 minutes pre-injection) and after each injection on Day 1 and Day 2 (5,10, 20, 30 minutes and 1,2,3,4,8,12 hours after), and on Days 3, 4, 8, and 29.Plasma levels for AUX-I (clostridial type I collagenase) and AUX-II (clostridial type II collagenase) will be determined.

Conditions

Peyronie's Disease

Keywords

Xiaflex; Xiapex; Collagenase clostridium histolyticum

Outcome Measures

Primary Outcomes (12)

• AUX-I Cmax After Injection 1

  Maximum AUX-I (clostridial type I collagenase) enzyme concentration from pre-injection to 24 hours after Injection 1. AUX-I plasma concentrations were determined with a validated enzyme-linked immunosorbent assay (ELISA).

  15 minutes before Injection 1 (0 hour for Injection 1); 5, 10, 20, and 30 minutes after Injection 1; 1, 2, 4, 8, and 12 hours after Injection 1; 15 minutes before Injection 2 (24 hours after Injection 1)

• AUX-II Cmax After Injection 1

  Maximum AUX-II (clostridium Type II collagenase) enzyme concentration from pre-injection to 24 hours after Injection 1. AUX-II plasma concentrations were determined with a validated enzyme-linked immunosorbent assay (ELISA).

  15 minutes before Injection 1 (0 hour for Injection 1); 5, 10, 20, and 30 minutes after Injection 1; 1, 2, 4, 8, and 12 hours after Injection 1; 15 minutes before Injection 2 (24 hours after Injection 1)

• AUX-I AUC0-tlast After Injection 1

  Area under the curve from pre-injection to tlast within 24 hours after the Injection 1, where tlast is time to last time with a quantifiable concentration of the enzyme AUX-I. AUX-I plasma concentrations were determined with a validated enzyme-linked immunosorbent assay (ELISA).

  15 minutes before Injection 1 (0 hour for Injection 1); 5, 10, 20, and 30 minutes after Injection 1; 1, 2, 4, 8, and 12 hours after Injection 1; 15 minutes before Injection 2 (24 hours after Injection 1)

• AUX-II AUC0-tlast After Injection 1

  Area under the curve from pre-injection to tlast within 24 hours after the Injection 1, where tlast is time to last time with a quantifiable concentration of the enzyme AUX-II. AUX-II plasma concentrations were determined with a validated enzyme-linked immunosorbent assay (ELISA).

  15 minutes before Injection 1 (0 hour for Injection 1); 5, 10, 20, and 30 minutes after Injection 1; 1, 2, 4, 8, and 12 hours after Injection 1; 15 minutes before Injection 2 (24 hours after Injection 1)

• AUX-I Tmax After Injection 1

  Time to maximum AUX-I enzyme concentration. AUX-I plasma concentrations were determined with a validated enzyme-linked immunosorbent assay (ELISA).

  15 minutes before Injection 1 (0 hour for Injection 1); 5, 10, 20, and 30 minutes after Injection 1; 1, 2, 4, 8, and 12 hours after Injection 1; 15 minutes before Injection 2 (24 hours after Injection 1)

• AUX-II Tmax After Injection 1

  Time to maximum AUX-II enzyme concentration. AUX-II plasma concentrations were determined with a validated enzyme-linked immunosorbent assay (ELISA).

  15 minutes before Injection 1 (0 hour for Injection 1); 5, 10, 20, and 30 minutes after Injection 1; 1, 2, 4, 8, and 12 hours after Injection 1; 15 minutes before Injection 2 (24 hours after Injection 1)

• AUX-I Cmax After Injection 2

  Maximum AUX-I enzyme concentration from zero to 24 hours after Injection 2.AUX-I plasma concentrations were determined with a validated enzyme-linked immunosorbent assay (ELISA).

  15 minutes before Injection 2 (24 hours after Injection 1 or 0 hour for Injection 2); 5, 10, 20, and 30 minutes after Injection 2; 1, 2, 4, 8, and 12 hours after Injection 2; Day 3 (24 hours after Injection 2)

• AUX-II Cmax After Injection 2

  Maximum AUX-II enzyme concentration from zero to 24 hours after Injection 2. AUX-II plasma concentrations were determined with a validated enzyme-linked immunosorbent assay (ELISA).

  15 minutes before Injection 2 (24 hours after Injection 1 or 0 hour for Injection 2); 5, 10, 20, and 30 minutes after Injection 2; 1, 2, 4, 8, and 12 hours after Injection 2; Day 3 (24 hours after Injection 2)

• AUX-I AUC0-tlast After Injection 2

  Area under the curve from zero to tlast within 24 hours after the Injection 2, where tlast is time to last time with a quantifiable concentration of the enzyme AUX-I. AUX-I plasma concentrations were determined with a validated enzyme-linked immunosorbent assay (ELISA).

  15 minutes before Injection 2 (24 hours after Injection 1 or 0 hour for Injection 2); 5, 10, 20, and 30 minutes after Injection 2; 1, 2, 4, 8, and 12 hours after Injection 2; Day 3 (24 hours after Injection 2)

• AUX-II AUC0-tlast After Injection 2

  Area under the curve from zero to tlast within 24 hours after the Injection 2, where tlast is time to last time with a quantifiable concentration of the enzyme AUX-II. AUX-II plasma concentrations were determined with a validated enzyme-linked immunosorbent assay (ELISA).

  15 minutes before Injection 2 (24 hours after Injection 1 or 0 hour for Injection 2); 5, 10, 20, and 30 minutes after Injection 2; 1, 2, 4, 8, and 12 hours after Injection 2; Day 3 (24 hours after Injection 2)

• AUX-I Tmax After Injection 2

  Time to maximum AUX-I enzyme concentration. AUX-I plasma concentrations were determined with a validated enzyme-linked immunosorbent assay (ELISA).

  15 minutes before Injection 2 (24 hours after Injection 1 or 0 hour for Injection 2); 5, 10, 20, and 30 minutes after Injection 2; 1, 2, 4, 8, and 12 hours after Injection 2; Day 3 (24 hours after Injection 2)

• AUX-II Tmax After Injection 2

  Time to maximum AUX-II enzyme concentration. AUX-II plasma concentrations were determined with a validated enzyme-linked immunosorbent assay (ELISA).

  15 minutes before Injection 2 (24 hours after Injection 1 or 0 hour for Injection 2); 5, 10, 20, and 30 minutes after Injection 2; 1, 2, 4, 8, and 12 hours after Injection 2; Day 3 (24 hours after Injection 2)

Study Arms (1)

AA4500

EXPERIMENTAL

collagenase clostridium histolyticum (AA4500) contains purified collagenase AA4500 (clostridium histolyticum) consisting of two microbial collagenases in a defined mass ratio, Collagenase AUX-I and Collagenase AUX-II, which are isolated and purified from the fermentation of Clostridium histolyticum bacteria. 2 injections of AA4500 0.58 mg were administered 24 hours apart.

Biological: AA4500

Interventions

AA4500 BIOLOGICAL

Two injections of AA4500 0.58 mg 24 hours apart

Also known as: XIAFLEX, XIAPEX

AA4500

Eligibility Criteria

• Age: 18 Years+
• Sex: male
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Be a male and be ≥ 18 years of age
• Be in a stable relationship with a female partner/spouse for at least 3 months before screening and be willing to have vaginal intercourse with that partner/spouse
• Have symptom(s) of Peyronie's disease for at least 12 months before the first dose of study drug and have evidence of stable disease as determined by the investigator
• Have penile curvature of at least 30° in the dorsal, lateral, or dorsal/lateral plane at screening. It must be possible to delineate the single plane of maximal curvature for evaluation during the study
• Be judged to be in good health, based upon the results of a medical history, physical examination, and laboratory profile
• Voluntarily sign and date an informed consent agreement approved by the Institutional Review Board/Independent Ethics Committee (IRB/IEC). The subject must also sign an authorization form to allow disclosure of his protected health information (PHI). The PHI authorization form and informed consent form may be an integrated form or may be separate forms depending on the institution
• Be able to read, complete and understand the various rating instruments in English

You may not qualify if:

• A subject will be excluded from study participation if he:
• Has a penile curvature of less than 30° or greater than 90° at the screening visit
• Has any of the following conditions:
• Chordee in the presence or absence of hypospadias; Thrombosis of the dorsal penile artery or vein; Infiltration by a benign or malignant mass resulting in penile curvature; Infiltration by an infectious agent, such as lymphogranuloma venereum; Ventral curvature from any cause; Presence of an active sexually transmitted disease; Known active hepatitis B or C; Known immune deficiency disease or be positive for human immunodeficiency virus (HIV)
• Has previously undergone surgery for Peyronie's disease
• Fails to have an erection which in the opinion of the investigator is sufficient to accurately measure the subject's penile deformity after administration of an appropriate pharmacological stimulant (eg, prostaglandin E1 or trimix)
• Has an isolated hourglass deformity of the penis (curvature caused by a plaque that is noncontiguous with the hourglass deformity may be treated)
• Has the plaque causing curvature of the penis located proximal to the base of the penis, so that the injection of a local anesthetic would interfere with the injection of AA4500 into the plaque
• Has previously received alternative medical therapies for Peyronie's disease administered by the intralesional route (including, but not limited to, steroids, verapamil, and the naturally occurring low molecular weight protein, interferon-α2b) within 3 months before the first dose of study drug or plans to use any of these medical therapies at any time during the study
• Has received alternative medical therapies for Peyronie's disease administered by the oral (including, but not limited to, vitamin E \[\>500 U\], potassium aminobenzoate \[Potaba\], tamoxifen, colchicine, pentoxifylline, over-the-counter erectile dysfunction medications, or steroidal anti-inflammatory drugs) or topical routes (including, but not limited to, verapamil applied as a cream) within 3 months before the first dose of study drug or plans to use any of these medical therapies at any time during the study
• Has had extracorporeal shock wave therapy (ESWT) for the correction of Peyronie's disease within the 6- month period before screening or plans to have ESWT at any time during the study
• Has used any mechanical type device for correction of Peyronie's disease within the 2-week period before screening or plans to use any these devices at any time during the study
• Has used a mechanical device to induce a passive erection within the 2-week period before screening or plans to use any of these devices at any time during the study
• Has significant erectile dysfunction that has failed to respond to oral treatment with phosphodiesterase type 5 (PDE5) inhibitors
• Has a penile Duplex Doppler ultrasound evaluation at screening that shows compromised penile hemodynamics that in the opinion of the investigator is clinically significant

Sponsors & Collaborators

• Endo Pharmaceuticals: lead

Study Sites (1)

Martin Gelbard, MD Inc.

Burbank, California, 91505, United States

Location

MeSH Terms

Conditions

Penile Induration

Interventions

Microbial Collagenase; xiapex

Condition Hierarchy (Ancestors)

Penile Diseases; Genital Diseases, Male; Genital Diseases; Urogenital Diseases; Male Urogenital Diseases; Connective Tissue Diseases; Skin and Connective Tissue Diseases

Intervention Hierarchy (Ancestors)

Collagenases; Metalloendopeptidases; Endopeptidases; Peptide Hydrolases; Hydrolases; Enzymes; Enzymes and Coenzymes; Metalloproteases

Results Point of Contact

• Title: Clinical Trial Coordinator
• Organization: Endo Pharmaceuticals, Inc.

clinicalsite.inquiries@endo.com

Study Officials

• Gregory J. Kaufman, MD

  Auxilium Pharmaceuticals, Inc.

  STUDY DIRECTOR

Publication Agreements

• PI is Sponsor Employee: No
• Restriction Type: OTHER
• Restrictive Agreement: Yes

Study Design

• Study Type: interventional
• Phase: phase 2
• Allocation: NA
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: September 6, 2011
• First Posted: September 8, 2011
• Study Start: September 1, 2011
• Primary Completion: November 1, 2011
• Study Completion: November 1, 2011
• Last Updated: October 5, 2017
• Results First Posted: May 6, 2015

Record last verified: 2017-09

Locations

US (1)