NCT00576888

Brief Summary

PURPOSE The purpose of this study is to learn more about multifocal lymphangioendotheliomatosis with thrombocytopenia (MLT). MLT is a rare vascular disorder characterized by multiple congenital skin and visceral lesions, profound thrombocytopenia, and gastrointestinal bleeding. The skin lesions may appear red, brown or blue, often misdiagnosed as hemangiomas. The gastrointestinal tract, liver, and lungs are the most common internal organs involved. The severe thrombocytopenia (low platelets) is believed to be the result of platelet trapping within the skin and visceral vascular lesions. Severe and chronic gastrointestinal bleeding is common during infancy and early childhood. Although a relatively newly described entity, MLT was likely previously reported as hemangiomas, blue rubber bleb nevus syndrome, diffuse hemangiomatosis, Kasabach-Merritt phenomenon, and hereditary hemorrhagic telangiectasia. The term cutaneovisceral angiomatosis with thrombocytopenia is also a term used for this same disease. This study is a longitudinal cohort study of MLT to collect detailed clinical data on the distribution of disease, disease severity, and complications. This data will be used to create diagnostic criteria and an evaluation protocol for infants with this disease

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
30

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Nov 2007

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 1, 2007

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

December 18, 2007

Completed
1 day until next milestone

First Posted

Study publicly available on registry

December 19, 2007

Completed
11 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2018

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 5, 2019

Completed
Last Updated

September 16, 2019

Status Verified

September 1, 2019

Enrollment Period

11.1 years

First QC Date

December 18, 2007

Last Update Submit

September 12, 2019

Conditions

Keywords

Multifocal lymphangioendoltheliomatosis with thrombocytopeniaCutaneovisceral angiomatosis with thrombocytopeniaThrombocytopeniaHemangiomasHemangiomatosisLymphatic malformationKasabach-MerrittBlue-rubber bleb nevusAngiomatosis

Outcome Measures

Primary Outcomes (1)

  • Number of patients with genetic mutations, copy number variations and/or expression analysis

    Expand knowledge on consensus diagnostic criteria, atypical presentations and long term outcomes of patients with vascular anomalies

    After DNA collected and batches are sent for analysis

Study Arms (1)

Vascular Anomaly with Coagulopathy

All patients diagnosed with Multifocal lymphangioendotheliomatosis with thrombocytopenia (MLT) or with a vascular anomaly with coagulopathy

Other: no intervention

Interventions

no intervention - observational only

Vascular Anomaly with Coagulopathy

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

All patients diagnosed with Multifocal lymphangioendotheliomatosis with thrombocytopenia (MLT) or with a vascular anomaly with coagulopathy

You may qualify if:

  • Subjects with a vascular anomaly with coagulopathy

You may not qualify if:

  • Subjects without a vascular anomaly with coagulopathy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Medical College of Wisconsin

Milwaukee, Wisconsin, 53226, United States

Location

Biospecimen

Retention: SAMPLES WITH DNA

Buccal swab, tissue biopsy if available

MeSH Terms

Conditions

HemangiomaThrombocytopeniaLymphatic AbnormalitiesBlue rubber bleb nevus syndromeAngiomatosis

Condition Hierarchy (Ancestors)

Neoplasms, Vascular TissueNeoplasms by Histologic TypeNeoplasmsBlood Platelet DisordersHematologic DiseasesHemic and Lymphatic DiseasesCytopeniaLymphatic DiseasesCongenital AbnormalitiesCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesVascular DiseasesCardiovascular Diseases

Study Officials

  • Beth Drolet, MD

    Medical College of Wisconsin

    PRINCIPAL INVESTIGATOR
  • Ulrich Broeckel, MD

    Medical College of Wisconsin

    PRINCIPAL INVESTIGATOR
  • Howard Jacob, PhD

    Medical College of Wisconsin

    PRINCIPAL INVESTIGATOR
  • Michael Kelly, MD, PhD

    Medical College of Wisconsin

    PRINCIPAL INVESTIGATOR
  • Richard Noel, MD, PhD

    Medical College of Wisconsin

    PRINCIPAL INVESTIGATOR
  • Paula North, MD, PhD

    Medical College of Wisconsin

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
OTHER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Dermatology and Pediatrics

Study Record Dates

First Submitted

December 18, 2007

First Posted

December 19, 2007

Study Start

November 1, 2007

Primary Completion

December 1, 2018

Study Completion

April 5, 2019

Last Updated

September 16, 2019

Record last verified: 2019-09

Locations