Stem Cell Transplantation for Crohn's Disease in Young People

This study is exploring an experimental treatment for severe Crohn's disease (CD) in young people aged 13-28 who haven't responded to other treatments. It involves removing overactive immune cells (immunoablation) and then replacing them with your own blood stem cells. This process uses medications like Cyclophosphamide and Filgrastim to prepare your body and help collect your stem cells. The goal is to "reset" your immune system to how it was before you developed Crohn's. Researchers will measure changes in mucosal healing (how well your gut lining heals), inflammation (using blood tests like SED rate), and a marker in your stool (fecal calprotectin) to see if the treatment is successful. The study aims to enroll 15 participants, but its current status is unclear.

Study design
This is an open-label, non-randomized study with 15 planned participants. It is not blinded, meaning both you and the researchers will know what treatment you are receiving.
What's involved
You will undergo procedures like apheresis catheter placement and leukapheresis to collect stem cells. You will also receive intravenous infusions of medications like Cyclophosphamide, Mesna, and Filgrastim.
Compensation
Not stated in the trial record.
Follow-up
Researchers will follow up on your mucosal healing at 6 and 12 months. They will also track your SED rate and fecal calprotectin for up to 24 months after the stem cell transplant.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT04224558

Stem Cell Transplantation in Crohn's Disease

Recruiting
PHASE1Ages 13–28InterventionalTreatment
Cedars-Sinai Medical Center
~15 participants
Updated 2026-02-20 on ClinicalTrials.gov
What's tested:MesnaCyclophosphamideFilgrastimApheresis catheter placementLeukapheresisFludarabine

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Change in mucosal healing
Measured over Change from pre-HSCT (baseline) to 6 months and 12 months post HSCT
+6 more outcomes measured
Crohn Disease
1 sites across 1 states
California1
  • David Ziring, MD · PRINCIPAL_INVESTIGATOR · Cedars-Sinai Medical Center

Opens a ready-to-send draft in your own email app — review before sending.

  • Change in mucosal healingChange from pre-HSCT (baseline) to 6 months and 12 months post HSCT

    Change mucosal healing as determined by the simple endoscopic score for crohn's disease (SES-CD). The SES-CD assesses the size of mucosal ulcers, the ulcerated surface, the endoscopic extension and the presence of stenosis. Each are measured on a scale of 0-3 and are summed to create a total score. For total score, 0-2 indicates remission, 3-6 indicates mild endoscopic activity, 7-15 indicates moderate endoscopic activity, and \> 15 indicates severe endoscopic activity.

  • Change in erythrocyte sedimentation rate (SED rate)Change from pre-HSCT (baseline) to 2, 4, 6, 12, and 24 months post HSCT

    Change in SED rate (mm/hour)

  • Change in fecal calprotectin concentrationChange from pre-HSCT (baseline) to 2, 4, 6, 12, and 24 months post HSCT

    Change in fecal calprotectin concentration

  • Change in C reactive protein (CRP)Change from pre-HSCT (baseline) to 2, 4, 6, 12, and 24 months post HSCT

    Change in C reactive protein (CRP)

  • Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability]Up to 24 months post HSCT

    Number of treatment-emergent adverse events (including death (transplant related mortality, TRM) and severe toxicity (≥ grade 3 toxicity; NCI Toxicity Criteria version 4.0)

  • Incidence of HSCT Related ComplicationsUp to 24 months post HSCT

    The incidence of HSCT related complications, i.e. viral reactivations (CMV, Adenovirus, EBV, BK virus) or fungal infections.

  • Change in clinical measures of sustained remissionUp to 24 months post HSCT

    Change in CDAI score (Crohn's Disease Activity Index). The CDAI measure the signs, symptoms, and history of Crohn's Disease based on the past 7 days. The index measures abdominal pain, stools per day, general wellbeing, HCT, ESR, Albumin, height, weight, abdominal exam, perirectal disease, and extra-intestinal manifestations each scaled between 0-10. The sum of these measures creates a total score between 0-100 with the higher score representative of more disease activity.