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CompletedNCT07320430Updated Jan 6, 2026

Comparative Study Between Sclerosing Agents Used in Treatment of Vascular Malformation

An interventional study of sclerotherapy with intralesional injection of Ethanol for treatment of low-flow vascular malformatio and Sclerotherapy with intralesional bleomycin injection in Vascular Malformation, sponsored by Ain Shams University. Completed at 1 site in Egypt. Per ClinicalTrials.gov, last updated 2026-01-06.

Sponsored by Ain Shams University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year 4 months after the study started (first participant enrolled Feb 2024, registered Jun 2025).
Phase
Not applicable
Study type
Interventional
Enrollment
75
Allocation
Randomized
Sex
All
01

Study summary

This study aims to Compare the Efficacy and Safety of Different sclerosing Agents Used in Treatment of Low-Flow Vascular Malformation

Read the detailed description

This study aims to Compare the Efficacy and Safety of Different sclerosing Agents Used in Treatment of Low-Flow Vascular Malformation.

Study Population: Patients with low -flow vascular malformations who visit Ain Shams University hospitals outpatient clinic.

  • Type of Study: Randomized Controlled Clinical Trial.
  • Study Setting: Ain Shams University hospitals.
  • Study Period: 18 months.
  • Sample Size: 75 patients.
  • Sampling Method: Convenient sample, divided into three equal groups by closed enveloped method.

    • First group will receive ethanol, second group will receive bleomycin, and third group will receive polidocanol.

      * Study procedure: patients will be lying flat supine or prone according to the anatomical site of the lesion, torniquet is applied over the draining vein , US guided puncture of the VM using 21gauge butterfly needle under local, regional or light general anaesthesia according to the topography of the lesion and patient's age, when flow seen, contrast is used to confirm correct access, visualization of the vascular channels and any connection with arterial or deep venous system, injection of the sclerosing agent under fluoroscopy showing contrast displacement.

    • Ethanol 99.8% with maximum dose 1ml/kg/session, bleomycin (15 U per bottle) will be reconstituted with 10 mL of normal saline to a final concentration of 1.5 U/ML, then 4ml will be foamed with 6ml human albumin, polidocanol 3% will be foamed 1ml+4ml air to a maximum dose of 15 ml /session.
    • First group will receive ethanol, second group will receive bleomycin, and third group will receive polidocanol.
    • After injection, DSA to allow visualization of negative or reduced dye filling, needle will be removed, then compression with bandage except for ethanol group, with mean procedure time about 20 minutes

      * Medications:

    • Pre-operative: Prophylactic dose of anticoagulation will be given 5 days before operation for those with elevated D-dimer and will be continued for ten days post-operative.
    • Intraoperative: Each patient will receive an injection of 0.5 mg/kg of corticosteroids during the procedure.
    • Post-operative: PPI, oral corticosteroids- prednisolone 20mg once/day- for 5 days, anti-oedematous measures, and will be prescribed paracetamol tablets after the procedure.

      • Follow up:

The investigators will follow those patients clinically, and radiologically (follow up US\&MRI selectively).

patients will be followed up few hours after operation, 2-4 weeks later between sessions, decision to continue the treatment or not will be made with the patient on the basis of the clinical efficacy. At the end of the treatment, patients will be followed up in a non-standardised manner up to 18 months, usually 1-3 months after the last session. When a consultation was not possible, telephone contact will be made with the patient.

02

Conditions studied

  • Vascular Malformation

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Keywords

  • low-flow
  • sclerosing
  • vascular malformation
03

In context

Vascular Malformations

79 studies on the registry are indexed under Vascular Malformations; 33 are open to participants now.

This study's enrollment of 75 is above the median of 55 across 49 interventional studies indexed under Vascular Malformations.

Browse Vascular Malformations studies →

Lead sponsor

Ain Shams University is the lead sponsor of 1,950 studies on the registry; 429 are open to participants now.

Of its 35 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

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

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients with schobinger stage II, III low- flow vascular malformation.
  • Lesion affecting Patients trunk and extremity..
  • Patient accepting the risk of the procedure and sign the detailed informed - consent, and in case of children-age less than18 years old- the consent will be signed by the parents

Exclusion criteria

Exclusion Criteria:

  • Patient with high- flow vascular malformation.
  • Patients with schobinger I and IV AVM.
  • Lesion affecting face, head, and neck.
  • Vascular tumours; haemangioma.
  • Patient with to embolic agents e.g., hypersensitivity to bleomycin.
  • Patients with CKD and elevated serum creatinine level.
  • Critically ill patients Including pulmonary diseases, insufficient cardiac and hepatorenal functions, systemic infection, haemorrhagic tendency.
  • Patient who /or his parents don't accept the risk of our procedure and don't sign the detailed .
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Care provider)
Enrollment
75 participants (actual)

Study arms

  • Active comparator
    first group(Ethanol)

    * 25 patients receiving Ethanol 99.8% with maximum dose 1ml/kg/session * sclerotherapy with intralesional injection of ethanol for treatment of low-flow vascular malformation.

    Procedure: sclerotherapy with intralesional injection of Ethanol for treatment of low-flow vascular malformatio

  • Active comparator
    second group(Bleomycin)

    25 patients receiving bleomycin (15 U per bottle) will be reconstituted with 10 mL of normal saline to a final concentration of 1.5 U/ML, then 4ml will be foamed with 6ml human albumin. sclerotherapy with intralesional injection of bleomycin for treatment of low-flow vascular malformation.

    Procedure: Sclerotherapy with intralesional bleomycin injection

  • Active comparator
    third group(Polidocanol)

    25 patients receiving Polidocanol 3% which will be foamed 1ml+4ml air to a maximum dose of 15 ml /session.

    Procedure: Sclerotherapy with intralesional injection of polidocanol

Interventions

  • Proceduresclerotherapy with intralesional injection of Ethanol for treatment of low-flow vascular malformatio

    First group will receive Ethanol. patients will be lying flat supine or prone according to the anatomical site of the lesion, US guided puncture of the vascular malformation (VM) using 21gauge butterfly needle under local, regional or light general anaesthesia according to the topography of the lesion and patient's age, when flow seen, contrast is used to confirm correct access, visualization of the vascular channels and any connection with arterial or deep venous system. injection of the sclerosing agent(Ethanol 99.8% with maximum dose 1ml/kg/session ) under fluoroscopy showing contrast displacement. After injection, DSA to allow visualization of negative or reduced dye filling, needle will be removed. compression will not be done for this group for fear of complications ( post operative pain- skin gangrene)

  • ProcedureSclerotherapy with intralesional bleomycin injection

    second group will receive bleomycin. patients will be lying flat supine or prone according to the anatomical site of the lesion, US guided puncture of the vascular malformation (VM) using 21gauge butterfly needle under local, regional or light general anaesthesia according to the topography of the lesion and patient's age, when flow seen, contrast is used to confirm correct access, visualization of the vascular channels and any connection with arterial or deep venous system, injection of the sclerosing agent: bleomycin (15 U per bottle) will be reconstituted with 10 mL of normal saline to a final concentration of 1.5 U/ML, then 4ml will be foamed with 6ml human albumin, under fluoroscopy showing contrast displacement. After injection, DSA to allow visualization of negative or reduced dye filling, needle will be removed, then compression with bandage will be done .

  • ProcedureSclerotherapy with intralesional injection of polidocanol

    Third group will receive polidocanol. patients will be lying flat supine or prone according to the anatomical site of the lesion, torniquet is applied over the draining vein , US guided puncture of the VM using 21gauge butterfly needle under local, regional or light general anaesthesia according to the topography of the lesion and patient's age, when flow seen, contrast is used to confirm correct access, visualization of the vascular channels and any connection with arterial or deep venous system, injection of the sclerosing agent under fluoroscopy showing contrast displacement. polidocanol 3% will be foamed 1ml+4ml air to a maximum dose of 15 ml /session. After injection DSA to DSA to allow visualization of negative or reduced dye filling, needle will be removed, then compression with bandage .

06

What researchers measure

Primary outcomes

  1. cure rate

    cure rate defined as: 1. Complete cure as 100% lesion devascularization on DSA or US with complete resolution of initial symptoms and signs. 2. partial cure has been established as devascularization of 50%-99% with complete or partial resolution.

    Time frame: 3 months after the last procedure

Secondary outcomes

  1. Rate of complications .

    1-Rate of complications including( pain, skin rash, hyperpigmentation, hypersensitivity reaction, PE

    Time frame: within1 months after the last procedure

  2. patient satisfaction

    Level of patient's satisfaction expressed through 5-point Likert scale. Items included are: 1. Post-Operative Pain Management . 2. Cosmetic Improvement . 3. Functional improvement . 4. Communication with the investigator about the case (diagnosis\& management). 5. Follow up after intervention. Overall Lowest score (5)means worst outcome, while Overall highest score (25)means best outcome.

    Time frame: within 1 month after last procedure.

07

Study locations

1 site
  • Faculty of medicine Ain Shams University
    Cairo, Abbassia 00202, Egypt
08

References and documents

Individual participant data

Plan to share: Yes — All available demographic data, photos taken before, during and after procedures, results can be shared

Supporting information: Study protocol, Statistical analysis plan, Informed consent form

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 6, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07320430
Responsible party
Sponsor
First posted
Jan 6, 2026
Start date
Feb 14, 2024
Primary completion
Jul 15, 2025
Completion
Aug 15, 2025
Last update
Jan 6, 2026

Study contacts

Mohamed A Hagag, Lecturer, MD vascular surgery
study director · faculty of medicine Ain shams Univerisity
Amr N kamel, professor of vascular surgery
study director · faculty of medicine Ain shams Univerisity
Ayman A Mohamed, professor of vascular surgery
study director · faculty of medicine Ain shams Univerisity

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jun 2025. You cannot join it, but the record below documents what was studied.

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