Title

Study of PXL01 Versus Placebo to Inhibit Adhesion Formation After Flexor Tendon Surgery
A Prospective Double-blind, Randomised Concept Study of PXL01 Versus Placebo in Flexor Tendon Surgery
  • Phase

    Phase 2
  • Study Type

    Interventional
  • Study Participants

    138
The objectives of the study are to assess efficacy, safety, and handling of PXL01 in patients with flexor tendon injury in zone I or II.
This is a multi-centre, randomized, double blind, parallel study design in patient admitted for flexor tendon repair in zone II.

The patients will undergo 9 visits within the time frame of the study. Patients will be randomized to receive treatment with PXL01 or standard care.

Primary objective is to assess total active motion based on PIP and DIP joints (TAM2) at 12-week visit. Secondary objectives are to assess TAM2 at all time points except for 12 weeks, TAM based on MCP, PIP, and DIP joints (TAM3) at all time points, Total Active Motion in DIP joint (DIPAM), tip-to-crease, grip strength and Total Passive Motion (TPM2 and TPM3).

Before any study-related assessment takes place, patients are given verbal and written information about the study and informed consent is achieved from the patient and/or legal guardian. The study should be carried out in accordance with the Clinical Study Protocol (CSP), ICH guidelines for Good Clinical Practise (GCP), and applicable regulatory requirements.
Study Started
Dec 31
2009
Primary Completion
May 31
2012
Study Completion
Feb 28
2013
Results Posted
May 29
2014
Estimate
Last Update
May 29
2014
Estimate

Drug PXL01

PXL01 is a synthetic peptide sequentially derived from human lactoferrin. PXL01 is formulated in a viscous solution of sodium hyaluronate. The drug product is administered locally between the flexor tendon and the tendon sheath and around the tendon sheath at a volume of 0.5 ml. Administration of the product is carried out after repair of the flexor tendon but before closure of the surgical wound.

Drug Placebo

Placebo is a physiological sodium chloride solution, which is clear and colourless.

Placebo Placebo Comparator

Placebo is administered locally between the flexor tendon and the tendon sheath and around the tendon sheath at a volume of 0.5 ml. Administration of the product is carried out after repair of the flexor tendon but before closure of the surgical wound.

PXL01 Experimental

PXL01 is administered locally between the flexor tendon and the tendon sheath and around the tendon sheath at a volume of 0.5 ml. Administration of the product is carried out after repair of the flexor tendon but before closure of the surgical wound.

Criteria

Inclusion criteria:

Complete division of flexor digitorium profundus tendon (FDP) in zone I or II, with or without division of flexor digitorium superficialis (FDS) and possible to rejoin with tendon suture
Open flexor tendon injury sutured within 14 days after trauma
12-75 years of age
Signed informed consent prior to any study related procedures

Exclusion criteria

Treatment with any investigational product within 4 weeks of study entry
Patients previously included in the study
Thumbs with complete or partial division of flexor pollicis longus (FPL)
Concomitant fracture(s) requiring immobilisation
Injuries with associated soft tissue loss
Severe crush injury
Palmar plate injury requiring immobilisation
Devascularisation/requirement of vascular repair
Joint injuries
Bilateral injuries
Previous flexor tendon surgery in the digit, which is to be treated with IMP
Reduced motion in the digit, which is to be treated with IMP, or the corresponding digit prior to the injury
Compliance with mobilisation protocol not expected
Alcohol or drug abuse
Severe intercurrent illness, which in the opinion of the Investigator, may put the patient at risk when participating in the study, or affect the patient's ability to take part in the study
Pregnant or lactating females
Fertile women who do not accept the consistent and correct use of highly effective methods of birth control defined as implants, injectables, combined oral contraceptives, intra-uterine device (IUD)s, sexual abstinence or vasectomised partner during the first two weeks post-surgery. A condom alone is not considered an acceptable method for birth control, not even together with spermicide.
Known allergy to any component of the study product or placebo

Patients suffering from:

Diabetes Mellitus patients where significant diabetic complications may delay healing according to the investigator's judgement
Rheumatoid arthritis

Or patients treated with:

Systemic steroids within one month
Immunosuppressive drugs within three months
Daily use of NSAIDs within one week or occasional use within 8 hours

Summary

Placebo

PXL01

All Events

Event Type Organ System Event Term Placebo PXL01

TAM2

The primary variable is TAM2: The sum of Total Active Motion at the proximal interphalangeal (PIP) and distal interphalangeal (DIP) joints of the affected digit at actively made fist minus the extensor lag at these joints.

Placebo

108.0
Degrees (Median)
Full Range: 36.0 to 175.0

PXL01

121.0
Degrees (Median)
Full Range: 29.0 to 182.0

Total

135
Participants

Age, Categorical

Race (NIH/OMB)

Sex: Female, Male

Overall Study

Placebo

PXL01