Sensory Recovery of Digital Nerves After Microsurgical Epineural Neurorrhaphy Alone or in Combination With Tisseel - RET
RET
A Prospective Randomized Study to Evaluate Sensory Recovery of Digital Nerves After Primary Repair Performed by Microsurgical Epineural End-to-end Neurorrhaphy Alone, or in Combination With an Enwrapping With Fibrin Sealant Tisseel®
1 other identifier
interventional
74
1 country
1
Brief Summary
Evaluation of sensitivity after primary surgical treatment of digital nerve injuries with microsurgical epineural end-to-end neurorrhaphy alone or in combination with the fibrin glue Tisseel®
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Mar 2023
Typical duration for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 6, 2022
CompletedFirst Posted
Study publicly available on registry
August 8, 2022
CompletedStudy Start
First participant enrolled
March 1, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2025
CompletedMarch 3, 2023
March 1, 2023
2.8 years
July 6, 2022
March 1, 2023
Conditions
Outcome Measures
Primary Outcomes (4)
two point discrimination
For this purpose a standardized two-point-discriminator (PADGETT DeMayo Two-Point Discrimination Device, Used for Post hand surgery diagnostic. MFID: PM-855) is used
preoperative
two point discrimination
For this purpose a standardized two-point-discriminator (PADGETT DeMayo Two-Point Discrimination Device, Used for Post hand surgery diagnostic. MFID: PM-855) is used
6 weeks postoperative
two point discrimination
For this purpose a standardized two-point-discriminator (PADGETT DeMayo Two-Point Discrimination Device, Used for Post hand surgery diagnostic. MFID: PM-855) is used
12 weeks postoperative
two point discrimination
For this purpose a standardized two-point-discriminator (PADGETT DeMayo Two-Point Discrimination Device, Used for Post hand surgery diagnostic. MFID: PM-855) is used
24 weeks postoperative
Secondary Outcomes (23)
Neuroma formation
6 weeks postoperative
Grip strength
12 weeks postoperative
Active range of motion
6 weeks postoperative
Pain with the Numeric Rating Scale (NRS): 0 indicating no and 10 indicating maximum pain
6 weeks postoperative
quickDASH score (Disabilities of the Shoulder, Arm and Hand)
preoperative
- +18 more secondary outcomes
Study Arms (2)
Microsurgical end-to-end neurorrhaphy alone
NO INTERVENTIONThis group of patients receives a simple, tension-free, end-to-end microsurgical neurorrhaphy alone (without fibrin glue)
Microsurgical end-to-end neurorrhaphy in combination with an enwrapping with fibrin sealant Tisseel®
EXPERIMENTALThis group of patients receives a simple, tension-free, end-to-end microsurgical neurorrhaphy in combination with an enwrapping with fibrin sealant Tisseel®.
Interventions
The investigational medical product (IMP) in this study is Tisseel®, which is a tissue sealer consisting of two components: 1. Sealer protein: Human fibrinogen as "glue" component and synthetic Aprotinin, which delays fibrinolysis. 2. Human thrombin: Thrombin is an unique molecule that functions both as a procoagulant and anticoagulant. It activates platelets through its receptor on the platelets and regulates its own. generation by activating coagulation factors V, VIII and even XI resulting in a burst of thrombin formation. Its indications are a better hemostasis, enforcement of vessel/gastrointestinal sutures and tissue sutures (mesh grafts, flaps etc).
Eligibility Criteria
You may qualify if:
- Written consent to participate in the study
- Acute digital nerve lesion(s) distal to the superficial arterial arch on one or more fingers that qualify for primary direct end-to-end microsurgical epineural neurorrhaphy
- Age ≥18 years
You may not qualify if:
- Lesions that do not allow a tension-free direct suture, partial transections, amputation, re-vascularisation
- Age \< 18 years
- Pre-operation on the injured finger
- Clinical comparison with contralateral finger not possible (e.g. due to amputation).
- Treatment that is known to inhibit the growth/regeneration of nerves impaired or can cause neuropathy - such as chemo- or radiotherapy before or during the whole study
- Systemic and local neurological impairments (polyneuropathy, diabetes mellitus, carpal tunnel syndrome, etc.)
- History of vascular diseases like Raynaud's disease syndrome that affects blood flow or sensation in the upper can affect the extremities
- Known or suspected non-compliance
- Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders, or dementia
- Women who are pregnant (urin pregnancy test) or breast feeding. Female participants who are surgically sterilised / hysterectomised or post-menopausal for longer than 2 years are not considered as being of child bearing potential.
- Previous enrolment into the current study
- Enrolment of the investigator, his/her family members, employees and other dependent persons
- Contraindications to the investigational product, e.g. known allergy to components of the Tisseel® fibrin glue
- Participation in another interventional study within the 30 days preceding and during the present study
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Insel Gruppe AG
Bern, 3010, Switzerland
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Esther Vögelin, Prof. Dr.
Insel Gruppe AG, University of Bern
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, OUTCOMES ASSESSOR
- Masking Details
- The study is examiner- and patient blinded. While the operating surgeon is not blinded, postoperative examinations will be performed by physicians who do not know the group assignment of the patient.
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 6, 2022
First Posted
August 8, 2022
Study Start
March 1, 2023
Primary Completion
December 31, 2025
Study Completion
December 31, 2025
Last Updated
March 3, 2023
Record last verified: 2023-03
Data Sharing
- IPD Sharing
- Will not share