Role of Sirolimus in Treatment of Microcystic , Mixed Lymphatic and Vascular Malformations

NCT ID: NCT06160739

Last Updated: 2023-12-15

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

10 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-11-20

Study Completion Date

2024-09-01

Brief Summary

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Lympho-vascular malformations result from errors in embryologic vasculogenesis involving capillaries, veins, arteries, lymphatics, or a combination of these. Infantile haemangiomas \& Vascular malformations like : Capillary malformations \& Venous malformations : they increase in size and never regress on their own. \& They are generally present at birth, they enlarge in response to infection, hormonal changes or trauma . Lymphatic malformations can be classified into macrocystic (cyst diameter \>1cm), microcystic (cyst diameter \<1 cm), or mixed , in macrocystic lymphatic malformations, surgery and sclerotherapy are effective . Surgery of microcystic lymphatic malformations remains challenging due to their infiltrative nature \& Sclerotherapy is often impossible. As especially large microcystic and mixed malformations are still a therapeutic challenge, pharmaceutical treatment as sirolimus is used in last years as main line of treatment with great efficacy.

Detailed Description

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Lympho-vascular malformations result from errors in embryologic vasculogenesis involving capillaries, veins, arteries, lymphatics, or a combination of these. Infantile haemangiomas \& Vascular malformations like : Capillary malformations \& Venous malformations : they increase in size and never regress on their own. \& They are generally present at birth, they enlarge in response to infection, hormonal changes or trauma . Lymphatic malformations can be classified into macrocystic (cyst diameter \>1cm), microcystic (cyst diameter \<1 cm), or mixed , in macrocystic lymphatic malformations, surgery and sclerotherapy are effective . Surgery of microcystic lymphatic malformations remains challenging due to their infiltrative nature \& Sclerotherapy is often impossible. As especially large microcystic and mixed malformations are still a therapeutic challenge, pharmaceutical treatment as sirolimus is used in last years as main line of treatment with great efficacy. Sirolimus is a natural macrolide isolated from a bacteria strain of the Streptomyces genus \& Streptomyces hygroscopicus . It was initially used as an antibiotic and antifungal agent, subsequent studies have revealed impressive cytostatic, antiproliferative, and immunosuppressive properties . Sirolimus not only prevents the growth of abnormal lymphatics but also induces the partial regression of lesions, without apparent effects on normal lymphatics .

Conditions

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Microcystic Lymphatic Malformation Combined Vascular Malformation Vascular Malformations

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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group A

microcystic \& mixed lymphatic malformation

Sirolimus 1Mg Oral Tablet

Intervention Type DRUG

patients with Microcystic , Mixed Lymphatic and Vascular Malformations will be given sirolimus 1 mg oral tab for 3-6 months with follow up of lesion size by clinical exam \& ultrasound \& MRI to compare lesion size before \& after use of the drug with observation of potential side effects \& after exclusion of it before use of the drug

group B

vascular malformation

Sirolimus 1Mg Oral Tablet

Intervention Type DRUG

patients with Microcystic , Mixed Lymphatic and Vascular Malformations will be given sirolimus 1 mg oral tab for 3-6 months with follow up of lesion size by clinical exam \& ultrasound \& MRI to compare lesion size before \& after use of the drug with observation of potential side effects \& after exclusion of it before use of the drug

Interventions

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Sirolimus 1Mg Oral Tablet

patients with Microcystic , Mixed Lymphatic and Vascular Malformations will be given sirolimus 1 mg oral tab for 3-6 months with follow up of lesion size by clinical exam \& ultrasound \& MRI to compare lesion size before \& after use of the drug with observation of potential side effects \& after exclusion of it before use of the drug

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* from age 6 months to 12 years , not before 6 months to complete their vaccination program \& maturation of hepatic enzymes .
* Patients diagnosed with microcystic \& mixed Lymphatic malformations .
* After failure of other lines of treatment as regard propranolol , steroid for infantile haemangiomas \& Vascular malformations and lymphovascular malformations .
* After failure of surgical excision \& injection of bleomycin of Lympho-vascular malformations

Exclusion Criteria

* Macrocystic Lymphatic malformations \& high flow vascular malformations like arterio-venous malformations .
* An active infection that requires systemic treatment during the attack .
* Side effects of the drug as ( history of an allergic reaction to sirolimus or patients who develop severe allergic reaction to drug during treatment , hyperlipidemia , leucopenia , etc… )
* Chronic liver or kidney disease or on chronic drug treatment as (steroids, interferon or chemotherapeutic agents) .
* An immunodeficiency condition such as a human immunodeficiency viral infection or primary immunodeficiency disease.
* Patients who received drug less than 6 months duration .
Minimum Eligible Age

6 Months

Maximum Eligible Age

12 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Sohag University

OTHER

Sponsor Role lead

Responsible Party

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Tarek Ahmed Abd Elsalam

Resident-pediatric surgery department-sohag hospital university

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Sohag university Hospital

Sohag, , Egypt

Site Status RECRUITING

Countries

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Egypt

Central Contacts

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Tarek A Abd elsalam, resident

Role: CONTACT

Phone: 01064411709

Email: [email protected]

Mohamed yousef, Ass. Prof.

Role: CONTACT

Facility Contacts

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Magdy M Amin, professor

Role: primary

References

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Sadick M, Muller-Wille R, Wildgruber M, Wohlgemuth WA. Vascular Anomalies (Part I): Classification and Diagnostics of Vascular Anomalies. Rofo. 2018 Sep;190(9):825-835. doi: 10.1055/a-0620-8925. Epub 2018 Jun 6.

Reference Type BACKGROUND
PMID: 29874693 (View on PubMed)

Vlahovic AM, Vlahovic NS, Haxhija EQ. Sirolimus for the Treatment of a Massive Capillary-Lymphatico-Venous Malformation: A Case Report. Pediatrics. 2015 Aug;136(2):e513-6. doi: 10.1542/peds.2014-3469. Epub 2015 Jul 6.

Reference Type BACKGROUND
PMID: 26148957 (View on PubMed)

Muller-Wille R, Wildgruber M, Sadick M, Wohlgemuth WA. Vascular Anomalies (Part II): Interventional Therapy of Peripheral Vascular Malformations. Rofo. 2018 Feb 7. doi: 10.1055/s-0044-101266. Online ahead of print.

Reference Type BACKGROUND
PMID: 29415296 (View on PubMed)

Adams DM, Wentzel MS. The role of the hematologist/oncologist in the care of patients with vascular anomalies. Pediatr Clin North Am. 2008 Apr;55(2):339-55, viii. doi: 10.1016/j.pcl.2008.01.007.

Reference Type BACKGROUND
PMID: 18381090 (View on PubMed)

Other Identifiers

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soh-Med-23-11-16MS

Identifier Type: -

Identifier Source: org_study_id