The N-LVA Study: RCT Comparing LVA vs. Sham Surgery in Cancer-related Lymphedema

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorMaastricht University Medical Center

About this trial

The goal of this randomized controlled trial is to compare the effectiveness and cost-effectiveness of lymphaticovenous anastomosis (LVA) with sham surgery for patients suffering from unilateral cancer-related lymphedema in either the upper or lower extremity. It aims to answer whether LVA is more effective than sham surgery in terms of improvement in Lymph-ICF score.

A total of 110 participants will be allocated randomly into two groups at a 1:1 ratio. The first group will receive lymphaticovenous anastomosis (LVA), while the second group will undergo sham surgery.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Treated for cancer and underwent treatment of either axillary or inguinal lymph nodes or radiotherapy;

Early stage lymphedema (ISL I-II) in the upper or lower extremity, and diagnosed by lymphoscintigraphy for the lower extremity;

Unilateral lymphedema;

Viable lymphatic vessels as determined by indocyanine green (ICG)Lymphography (stage II-III);

Disqualifiers

History of lymphatic reconstruction in the past 10 years;

Late-stage lymphedema of the extremity (ISL classification ≥ II lymphedema) with evident fat deposition and/or fibrosis;

Patients with active distant metastases, treated with palliative intent;

Patients with the active treatment of primary cancer, i.e. surgery, radiotherapy, and/or chemotherapy. Note: patients receiving adjuvant targeted and/or endocrine treatment are eligible;

Trial design

Design model

Parallel

Treatments tested in this trial

  • Lymphaticovenous anastomosis

    Procedure/Surgery

    Lymphaticovenous anastomosis (LVA) involves connecting a lymphatic vessel to an adjacent vein of similar size, thereby facilitating the outflow of lymphatic fluid in patients suffering from secondary lymphedema

  • Sham surgery

    Procedure/Surgery

    Sham surgery involves the process of surgery, including local anesthesia and incisions, but no LVA is made.

Treatment groups

110 Participants
are divided into 2 treatment groups
Group A: Lymphaticovenous anastomosis (LVA)Experimental treatment 1 intervention
Group B: Sham surgerySham comparator 1 intervention

Trial outcomes

Primary outcomes

1

Change from baseline in the Lymph-ICF Score at 12 and 24 months

The Dutch version of the 'Lymphedema Functioning, Disability, and Health" (Lymph-ICF) questionnaire is used. There are two versions of the Lymph-ICF; one for the upper extremity and one for the lower extremity. The questionnaires assess the impairments in function, activity limitations, and participation restrictions of patients with lymphedema. It is a validated, disease-specific questionnaire, consisting of items across 5 domains. Each item is scored on a VAS, ranging from 0 to 100.

Time frame
Baseline, 3, 6, 12, 18 and 24 months post-operatively and afterwards annually during the extended follow-up, lasting up to the start of the first analysis (maximally 3 years extra or 3 additional visits).

Secondary outcomes

1

Change from baseline in excess limb volume

The excess limb volume will be measured with BioImpedance Spectroscopy (BIS). With a bioimpedance device, the volume of the extremities can be measured together with the fluid in different compartments of the extremities.

Time frame
Baseline, 3, 6, 12, 18 and 24 months post-operatively and afterwards annually during the extended follow-up, lasting up to the start of the first analysis (maximally 3 years extra or 3 additional visits).
2

Change from baseline in extremity circumference measured by the Upper and Lower Extremity Lymphedema (UEL and LEL) indices

The extremity circumference will be measured using measuring tape according to the fixed measuring points of the UEL- and LEL-indices. The UEL- and LEL-indices are corrected for BMI.

Time frame
Baseline, 3, 6, 12, 18 and 24 months post-operatively and afterwards annually during the extended follow-up, lasting up to the start of the first analysis (maximally 3 years extra or 3 additional visits).
3

Change from baseline in the use of conservative treatment

Discontinuation of conservative treatment, being complex decongestive therapy, will be assessed with a patient diary to record the frequency of treatments received (i.e. skin therapy visits, number of compression garments, etc.).

Time frame
Baseline, 3, 6, 12, 18 and 24 months post-operatively and afterwards annually during the extended follow-up, lasting up to the start of the first analysis (maximally 3 years extra or 3 additional visits).
4

Postoperative complications

All postoperative complications for both treatment groups will be recorded to monitor safety. SAEs will be directly reported to the sponsor.

Time frame
Baseline, 3, 6, 12, 18 and 24 months post-operatively and afterwards annually during the extended follow-up, lasting up to the start of the first analysis (maximally 3 years extra or 3 additional visits).

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Maastricht University Medical Center

Lead sponsor

Radboud University Medical Center

Collaborator

Erasmus Medical Center

Collaborator