RecruitingPhase 1Phase 2NCT07640425

Safety and Efficacy Study of Collagenase CNT201 Injection for Treatment of Dupuytren's Contracture

A Phase 1/2, Multicenter, Dose Escalating, Dose Expanding, Adaptive Study to Assess Safety, Tolerability, Efficacy and Pharmacokinetics of Collagenase CNT201 in Adult Participants With Dupuytren's Contracture


Sponsor

CONNEXT

Enrollment

60 participants

Start Date

Jul 23, 2024

Study Type

INTERVENTIONAL

Conditions

Summary

This trial is a multicenter, Phase 1/2, study to assess the safety, tolerability, efficacy, PK, and immunogenicity of CNT201 in adult participants with DC (Dupuytren's Contracture).


Eligibility

Min Age: 18 YearsMax Age: 75 Years

Inclusion Criteria6

  • Men and women, 18 to 75 years of age, inclusive.
  • Participants with a diagnosis of DC, with a fixed flexion deformity of at least 1 finger, other than the thumb, that have a contracture at least 20°, but not greater than 100°, for MP (not greater than 80° for PIP) joints, caused by a palpable cord.
  • Participants who have a positive Table Top Test, defined as the inability to simultaneously place the affected finger(s) and palm flat against a tabletop.
  • Participants who are naive to CNT201 treatment.
  • Participants who are judged to be in good health, based upon the results of a medical history, physical examination, and safety laboratory profile.
  • Participants who are willing to voluntarily sign and date the Informed Consent Form (ICF) approved by the Institutional Review Board/Independent Ethics Committee (IRB/IEC).

Exclusion Criteria9

  • Participants previously exposed to collagenase Clostridium histolyticum for treatment of Dupuytren's disease (Xiaflex, Xiapex®).
  • Participants who have received other treatments for advanced Dupuytren's disease, including surgery (fasciectomy or fasciotomy), needle aponeurotomy/fasciotomy, or injection of verapamil and/or interferon on the selected primary joint within 90 days before the first dose of study treatment.
  • Participants with a chronic muscular, neurological, or neuromuscular disorder that affects the hands, or other medical condition which in the Investigator's opinion will make the participant unsuitable for enrollment in the study.
  • Participants who have a known recent history of stroke, bleeding, a disease process that affected the hands, or other medical condition (eg, testing positive for tuberculosis \[TB\] or Coronavirus disease 2019 \[COVID-19\], etc), or history of alcoholism or drug abuse, which in the Investigator's opinion, would make the participant unsuitable for enrollment in the study.
  • Participants who have a known allergic response to collagenase or any other excipient of CNT201 or Xiaflex.
  • Participants who have received a doxycycline or tetracycline derivative within 14 days before the beginning of the study (tetracycline derivatives may inhibit the collagenolytic activity of mammalian collagenase homologs).
  • Participants who have received an anticoagulant (except aspirin ≤150 mg/day) within 7 days before the start of the study.
  • Female participants who are nursing or pregnant, or plan to become pregnant during the study treatment stage of the study.
  • Participants who have been treated with any investigational drug within 30 days of first dose of study treatment.

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Interventions

DRUG[Step1] CNT201 First-dose

CNT201: recombinant collagenase • Unit Dose Strength(s)/ Dosage Level(s): First-dose

DRUG[Step1] CNT201 Low-dose

CNT201: recombinant collagenase • Unit Dose Strength(s)/ Dosage Level(s): Low-dose

DRUG[Step1] CNT201 Intermediate-dose

CNT201: recombinant collagenase • Unit Dose Strength(s)/ Dosage Level(s): Intermediate-dose

DRUG[Step1] CNT201 High-dose

CNT201: recombinant collagenase • Unit Dose Strength(s)/ Dosage Level(s): High-dose

DRUG[Step2] CNT201

eligible participants will be randomized to 1 of 2 or more treatment arms, depending on the number of CNT201 doses selected for administration in Step 2

DRUG[Step2] Placebo

• Saline


Locations(1)

A R Houston Medical Pty Ltd.

Kippa-Ring, Queensland, Australia

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NCT07640425


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