Depleted Donor Stem Cell Transplant in Children and Adults With Fanconi Anemia After Being Conditioned With a Regimen Containing Briquilimab

Trial statusRecruiting
Trial phasePhase 1, Phase 2
Trial typeInterventional
Biological sexAll
Age2+
SponsorPorteus, Matthew, MD

About this trial

The objective of this clinical trial is to develop a cell therapy for Fanconi Anemia which enables enhanced donor hematopoietic and immune reconstitution with decreased toxicity by transplanting depleted stem cells from a donor with and without using an experimental antibody treatment called JSP-191 as a part of conditioning. This experimental treatment will hopefully cause fewer side effects than chemotherapy (the current standard of care method).

Participants will be administered the conditioning regimen, are assessed until they receive the depleted stem cell infusion, and will be followed for up to 2 years after the cell infusion.

Eligibility criteria

Qualifiers

Fanconi Anemia diagnosis as demonstrated by abnormal chromosome breakage studies with increased sensitivity to mitomycin-C (MMC) or diepoxybutane (DEB) and at least one mutation in a known Fanconi-associated gene

Bone marrow failure (defined by reduction in at least one cell line on two separate occasions at least one month apart (e.g., platelet count of <100,000 per cubic millimeter, hemoglobin <9 gm/dl and/or absolute neutrophil count (ANC) of <1000/mm)

Age of ≥2 years

Consenting ≥5/10 HLA-matched related or unrelated donor available for apheresis

Disqualifiers

Patients with available and consenting 10/10 HLA-identical sibling donor for apheresis

Patients with any acute or uncontrolled infections at the time of enrollment, including bacterial, fungal or viral

Patients who are seropositive for HIV-I/II or HTLV-I/II.

Patients receiving any other investigational agents or other biological, chemotherapy, or radiation therapy within 14 days of enrollment

Trial design

Treatments tested in this trial

  • JSP191
  • CliniMACS Prodigy System
  • Depleted Stem Cell Transplant
  • Rabbit Anti-Thymoglobulin (rATG)
  • Cyclophosphamide
  • Fludarabine
  • Rituximab

Treatment groups

18 Participants
are divided into 2 treatment groups

Sponsors and collaborators

Porteus, Matthew, MD

Lead sponsor

Stanford University

Sponsor institution