Registry for Patients With Erdheim-Chester Disease and Other Histiocytoses

January 6, 2026 updated by: Memorial Sloan Kettering Cancer Center

The investigators want to understand more about what kinds of health problems are caused by histiocytosis, what happens as a result of different treatments, and how ECD affects people's lives, their feelings and their attitudes. The investigators also want to learn how these things change over time for people with these conditions. To try to figure this out, doctors would like to collect information about people who have histiocytosis and how they are treated for this disease.

Some participants will be asked to complete a brief interview over the telephone. Only a limited number of interviews will take place, and not everyone will be asked to participate in the interview. It is okay if the participant does not want to participate in the interview portion. If this is the case, the participant should let the study team member know when contacted.

Study Overview

Status

Recruiting

Conditions

Study Type

Observational

Enrollment (Estimated)

500

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

  • Name: Katherine Panageas, PhD
  • Phone Number: 646-888-8237

Study Locations

  • United States
    • New York
      • New York, New York, United States, 10065
        • Recruiting
        • Memorial Sloan Kettering Cancer Center
        • Contact:
          • Eli Diamond, PhD
          • Phone Number: 212-610-0243
        • Contact:
          • Katherine Panageas, MD
          • Phone Number: 646-888-8237
        • Principal Investigator:
          • Eli Diamond, MD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Patients with Erdheim-Chester Disease and other HN will be enrolled in this registry study.

Description

Inclusion Criteria:

  • Diagnosis of Erdheim-Chester Disease, Langerhans cell histiocytosis, Rosai Dorfman disease, or another histiocytic neoplasm by either 1) documented histopathologic establishing ECD or HN or 2) documented histopathologic findings compatible with Erdheim-Chester disease or HN in the context of corroborating clinical and/or radiologic findings or 3) documented radiologic findings, in the absence of a biopsy having been performed or yielding evaluable tissue, that are felt by the Principal Investigator to unequivocally represent an ECD/HN diagnosis given the clinical context or 4) self reported with supporting documentation upon medical record collection.
  • Proficiency in English, in the determination of the Investigator or by self report.
  • Willing to have historical and future HN-related health records sent to Registry review.

Exclusion Criteria:

  • Patients unwilling to sign consent.
  • Participants under the age of 18.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Patients with Erdheim-Chester Disease and Other Histiocytoses

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Create registry for Erdheim-Chester Disease and Other Histiocytoses
Time Frame: 3 years
This ECD and Other Histiocytoses registry is motivated to capture comprehensive clinical information as well as patient-centered data about ECD and Other Histiocytoses patients.
3 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Memorial Sloan Kettering Cancer Center

Investigators

  • Principal Investigator: Eli Diamond, MD, Memorial Sloan Kettering Cancer Center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

October 26, 2017

Primary Completion (Estimated)

October 1, 2026

Study Completion (Estimated)

October 1, 2026

Study Registration Dates

First Submitted

October 26, 2017

First Submitted That Met QC Criteria

October 27, 2017

First Posted (Actual)

November 1, 2017

Study Record Updates

Last Update Posted (Estimated)

January 8, 2026

Last Update Submitted That Met QC Criteria

January 6, 2026

Last Verified

January 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 17-516

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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