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CompletedNCT01936168MARADONAUpdated Feb 12, 2021

MOCA Versus RFA in the Treatment of Primary Great Saphenous Varicose Veins

An interventional study of Mechanochemical Endovenous Ablation (MOCA) and Radiofrequency ablation (RFA) in Greater Saphenous Vein Injury, sponsored by Rijnstate Hospital. Completed at 5 sites in Netherlands. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2021-02-12.

Sponsored by Rijnstate Hospital · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
213
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
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Study summary

The newly developed Mechanochemical Endovenous Ablation (MOCA) device uses a technique that combines mechanical endothelial damage using a rotating wire with the infusion of a liquid sclerosant. Heating of the vein and tumescent anesthesia are not required; only local anesthesia is utilized at the insertion site. Previously we showed that endovenous MOCA, using polidocanol, is feasible and safe in the treatment of great spahenous vein (GSV) incompetence. However, larger studies with a prolonged follow-up to prove the efficacy of this technique in terms of obliteration rates are lacking. This randomized trial was designed to compare occlusion rate, post-operative pain and complications between radiofrequency ablation (RFA: the current treatment for GSV incompetence) en MOCA.

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Conditions studied

  • Greater Saphenous Vein Injury

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Keywords

  • GSV
  • Primary Varicose Veins
  • Great Saphenous Vein
  • Treatment
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In context

Varicose Veins

253 studies on the registry are indexed under Varicose Veins; 35 are open to participants now.

This study's enrollment of 213 is above the median of 104 across 162 interventional studies indexed under Varicose Veins.

Browse Varicose Veins studies →

Lead sponsor

Rijnstate Hospital is the lead sponsor of 127 studies on the registry; 14 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Insufficiency of the GSV
  • Signed informed consent
  • Patient willing to participate in follow-up scheme
  • Age > 18 years
  • Ultrasound criteria for endovenous treatment have been met:
  • Diameter GSV between 3-12 mm
  • No thrombus in the to be treated segment of the GSV

Exclusion criteria

Exclusion Criteria:

  • Patient not able to give informed consent
  • Patient unable to present at follow-up visits
  • Other treatment is more suitable
  • Pregnancy and breast feeding
  • Known allergy/ contra-indication for sclerotherapy
  • Previous ipsilateral surgical treatment of varicose veins
  • Deep venous thrombosis or lung emboli in medical history
  • Anticoagulant therapy
  • C5-C6 varices
  • Immobilization
  • Fontaine II or IV peripheral arterial disease
  • Severe kidney function decline (GFS \< 30 mL/min)
  • Coagulation disorder or increased risk for thrombo-embolic complications(hemofilie A or B, v. Willebrand disease, Glanzmann disease, Factor VII-deficiency, idiopatic thrombocytopenic purpura, Factor V Leiden)
  • Liver diseases accompanied by changes in blood coagulation, livver cirrhosis
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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
213 participants (actual)

Study arms

  • Active comparator
    RFA

    Radiofrequency Ablation (RFA)

    Procedure: Radiofrequency ablation (RFA)

  • Experimental
    MOCA

    Mechanochemical Endovenous Ablation (MOCA)

    Device: Mechanochemical Endovenous Ablation (MOCA)

Interventions

  • DeviceMechanochemical Endovenous Ablation (MOCA)

    Mechanochemical Endovenous Ablation (MOCA)for treatment of great saphenous vein incompetence

    Also known as: (MOCA)

  • ProcedureRadiofrequency ablation (RFA)

    Radiofrequency ablation (RFA)for treatment of great saphenous vein incompetence

    Also known as: (RFA)

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What researchers measure

Primary outcomes

  1. Occlusion rate

    Occlusion rates between treatments will be compared at mentioned time points (both technical and clinical success)

    Time frame: up to 5 years

Secondary outcomes

  1. Per-procedural pain score

    Pain during the procedure will be compared between treatments using the VAS score

    Time frame: two weeks

  2. Complications

    Complication at day 30 will be compared between treatments.

    Time frame: 30 days

  3. Procedure duration

    The duration of the procedures will be compared

    Time frame: 30 days

  4. Costs of both treatments

    The total costs of both treatments will be compared

    Time frame: 1 year

  5. Health status

    Using the RAND 36-Item short From Health Survey (SF36) the general health status will be compared between treatments at various time points as specified by the protocol.

    Time frame: 1 year, 5 years

  6. Post procedural pain score

    Pain during the the first two weeks after the procedure will be compared between treatments using the VAS score

    Time frame: two weeks

  7. Disease related quality of life

    Using the Aberdeen Varicose Vein Questionnaire (AVVQ)the disease related quality of life will be compared between treatments at various time points as specified by the protocol.

    Time frame: 1 year, 5 years

Other outcomes

  1. Recovery time

    Time until daily activities and or work can be resumed (measured in days)

    Time frame: 30 days

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Study locations

5 sites
  • Rijnstate Hospital
    Arnhem, Gelderland, Netherlands
  • BovenIJ Hospital
    Amsterdam, Netherlands
  • OLVG
    Amsterdam, Netherlands
  • UMCG
    Groningen, Netherlands
  • St. Antonius Hospital
    Nieuwegein, Netherlands
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References and documents

Publications

  • Boersma D, van Eekeren RR, Werson DA, van der Waal RI, Reijnen MM, de Vries JP. Mechanochemical endovenous ablation of small saphenous vein insufficiency using the ClariVein((R)) device: one-year results of a prospective series. Eur J Vasc Endovasc Surg. 2013 Mar;45(3):299-303. doi: 10.1016/j.ejvs.2012.12.004. Epub 2013 Jan 9. PubMed 23312507 ↗
  • van Eekeren RR, Boersma D, Elias S, Holewijn S, Werson DA, de Vries JP, Reijnen MM. Endovenous mechanochemical ablation of great saphenous vein incompetence using the ClariVein device: a safety study. J Endovasc Ther. 2011 Jun;18(3):328-34. doi: 10.1583/11-3394.1. PubMed 21679070 ↗
  • van Eekeren RR, Boersma D, Konijn V, de Vries JP, Reijnen MM. Postoperative pain and early quality of life after radiofrequency ablation and mechanochemical endovenous ablation of incompetent great saphenous veins. J Vasc Surg. 2013 Feb;57(2):445-50. doi: 10.1016/j.jvs.2012.07.049. Epub 2012 Nov 8. PubMed 23141679 ↗
  • van Eekeren RR, Boersma D, de Vries JP, Reijnen MM. [Endovenous mechanochemical ablation for varicose veins--a new endovenous technique without tumescent anaesthesia]. Ned Tijdschr Geneeskd. 2011;155(33):A3177. Dutch. PubMed 21854655 ↗
  • Holewijn S, van Eekeren RRJP, Vahl A, de Vries JPPM, Reijnen MMPJ; MARADONA study group. Two-year results of a multicenter randomized controlled trial comparing Mechanochemical endovenous Ablation to RADiOfrequeNcy Ablation in the treatment of primary great saphenous vein incompetence (MARADONA trial). J Vasc Surg Venous Lymphat Disord. 2019 May;7(3):364-374. doi: 10.1016/j.jvsv.2018.12.014. PubMed 31000063 ↗
  • van Eekeren RR, Boersma D, Holewijn S, Vahl A, de Vries JP, Zeebregts CJ, Reijnen MM. Mechanochemical endovenous Ablation versus RADiOfrequeNcy Ablation in the treatment of primary great saphenous vein incompetence (MARADONA): study protocol for a randomized controlled trial. Trials. 2014 Apr 11;15:121. doi: 10.1186/1745-6215-15-121. PubMed 24726004 ↗

Individual participant data

Plan to share: Yes

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 12, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01936168
Lead sponsor
Rijnstate Hospital
Collaborators
St. Antonius Hospital, OLVG, BovenIJ Hospital
Responsible party
Michel Reijnen (Surgeon, Rijnstate Hospital) — Principal investigator
First posted
Sep 5, 2013
Start date
Dec 1, 2016
Primary completion
Dec 31, 2020
Completion
Dec 31, 2020
Last update
Feb 12, 2021

Study contacts

MMPJ Reijnen, MD
principal investigator · Rijnstate Hospital Arnhem

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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