Recruiting

Observational Study

Sponsor:

Mayo Clinic

Code:

NCT06331377

Conditions

Histiocytic Disorder

Eligibility Criteria

Sex: All

Age: 1+

Healthy Volunteers: Not accepted

Interventions

Non-Interventional Study

Study Details

Brief summary:

This study is being done to collect medical and personal histories as well as a samples of blood, other body fluid and/or tumor/disease tissue for current and future research studies on histiocytic disorders.

Conditions

Histiocytic Disorder

Study ID

NCT06331377

Start date

Jul 27, 2017

Status verified date

Jul, 2026

Completion date

Jul 31, 2027

Anticipated

Primary completion date

Jul 31, 2027

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 1+

Healthy Volunteers: Not accepted

Inclusion Criteria:

  • All patients diagnosed with histiocytic disorders and age ≥1 year

Exclusion Criteria:

  • < 1 years age

Study Design

Enrollment

500 participants

Anticipated

Interventions and Outcome Measures

Arms

Observational

Patients complete questionnaires and undergo blood and tissue sample collection. Patients' medical records are also reviewed.

Interventions

Non-Interventional Study

Non-interventional study

Primary outcome measure

  • Identify molecular markers [ Time Frame: Baseline ]
  • Change in PD-L1 and T-cell Bim expression [ Time Frame: Baseline; post-treatment (estimated up to 2 years, potentially 4 times per year) ]

Central Contacts and Locations

Central contacts

Clinical Trials Referral Office

855-776-0015mayocliniccancerstudies@mayo.edu

Locations

Mayo Clinic in Rochester

Recruiting

Rochester, Minnesota, United States, 55905

Contacts

Clinical Trials Referral Office

855-776-0015mayocliniccancerstudies@mayo.edu

Principal Investigator:

Jithma P. Abeykoon, MD

More Information

Sponsor

Mayo Clinic

Last update posted

Aug 4, 2026

Last verified

Jul, 2026

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by Mayo Clinic on 2026-08-04.