Registry for rare histiocytic disorders
Official title: International Rare Histiocytic Disorders Registry (IRHDR)
Run by The Hospital for Sick Children · NCT02285582 · Data updated 2026-11-12
This study is gathering information from people of all ages with rare histiocytic disorders to help improve diagnosis and treatment options.
Quick facts
| Study type | Observational |
|---|---|
| Sex | All |
| Enrollment | 400 (estimated) |
| Sponsor | The Hospital for Sick Children Academic / other |
| Locations | 15 sites (Birmingham, Alabama and 14 other locations) |
| Status | Recruiting |
| Started | October 2014 |
| Main results expected | September 2028 |
| Study ends | September 2028 |
| Registry record updated | June 24, 2025 |
| Trial ID | NCT02285582 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates include individuals of any age diagnosed with a rare histiocytic disorder, with suitable pathology samples available for review.
✕Probably not a fit
Patients without a confirmed diagnosis of a rare histiocytic disorder or those lacking a pathology sample for review may not benefit from this registry.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
The International Rare Histiocytic Disorders Registry (IRHDR) aims to collect and analyze clinical, epidemiological, treatment, and survival data for patients diagnosed with rare histiocytic disorders. This observational registry will facilitate uniform diagnosis and provide a framework for future therapeutic recommendations. It includes patients of any age with a confirmed diagnosis of a rare histiocytic disorder, allowing for the inclusion of historical cases dating back to 1995. The registry will also offer expert pathology reviews to enhance understanding and management of these conditions.
Why it matters
Potential benefit: If successful, this registry could lead to improved diagnosis and treatment recommendations for patients with rare histiocytic disorders.
How similar studies have gone: While the approach of creating a registry for rare diseases is not novel, the specific focus on rare histiocytic disorders is relatively untested, highlighting the need for this initiative.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Any age at diagnosis. 2. Diagnosis of a rare histiocytic disorder, established before or after the opening of the registry. 3. Cases diagnosed from January - 01- 1995 until the present time and prospectively. 4. Signed informed consent by a patient, or parent/legal guardian. 5. Cognitively impaired patients can be included after consent by legal guardian/parent. 6. Deceased patients can be included if they are contacted at least 6 months after the death of their child and not on their child's birthday or anniversary of death. Exclusion Criteria: 1. Informed consent has not been signed. 2. Diagnosis other than RHD. 3. Cases diagnosed before the year 1995.
Where it's running
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The University of Alabama at Birmingham
Birmingham, Alabama, United States Recruiting -
Children's Hospital of Los Angeles
Los Angeles, California, United States Recruiting -
Valley Children's Hospital
Madera, California, United States Recruiting -
Dana-Farber Cancer Institute
Boston, Massachusetts, United States Recruiting -
Memorial Sloan Kettering Cancer Center
New York, New York, United States Recruiting -
University of Pittsburgh Medical Center
Pittsburgh, Pennsylvania, United States Recruiting
Show 9 more locations
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Hospital Nacional de Pediatria Garrahan
Buenos Aires, Argentina Recruiting -
The Hospital for Sick Children
Toronto, Ontario, Canada Recruiting -
University Hospital Brno
Brno, Czechia Recruiting -
Rostock University Medical Hospital
Rostock, Germany Recruiting -
Azienda Ospedaliero-Universitaria Meyer
Florence, Italy Recruiting -
Prinses Maxima Center
Utrecht, Cs, Netherlands Recruiting -
Children's Memorial Health Institute
Warsaw, Poland Recruiting -
Hospital Universitario Cruces
Barakaldo, Spain Recruiting -
Centre hospitalier universitaire Sainte-Justine
Montreal, Quebec, Canada Active not recruiting
Study contacts
- Principal investigator: Oussama Abla, MD — The Hospital for Sick Children
- Study coordinator: Oussama Abla, MD
- Email: oussama.abla@sickkids.ca
- Phone: 416-813-7879
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.