JSP191 Antibody Targeting Conditioning in SCID Patients

a study on Severe Combined Immunodeficiency Hematopoietic Cell Transplantation Immunodeficiency

Summary

Eligibility
for people ages 3 months to 12 years (full criteria)
Location
at Los Angeles, California and other locations
Dates
study started
completion around
Principal Investigator
by Theodore B. Moore, M.D.

Description

Summary

A Phase 1/2 study to evaluate the safety, tolerability, and efficacy of an antibody conditioning regimen, known as JSP191, in patients with Severe Combined Immune Deficiency undergoing blood stem cell transplantation

Official Title

A Phase 1/2 Study to Evaluate the Safety, Tolerability, and Efficacy of JSP191 for Hematopoietic Cell Transplantation Conditioning to Achieve Engraftment and Immune Reconstitution in Subjects with SCID

Details

A Phase 1/2 study to evaluate the safety, tolerability, and efficacy of an antibody conditioning regimen, known as JSP191, in patients with SCID undergoing blood stem cell transplantation. Blood Stem Cell transplantation offers the only potentially curative therapy for SCID.

The biological conditioning regimen, JSP191, is an antibody that binds to CD117. CD117 is the receptor for Stem Cell Factor on blood forming cells. CD117 binding to Stem Cell Factor is critical for survival and maintenance of blood forming stem cells. The binding of JSP191 to CD117 blocks CD117 from binding to Stem Cell Factor on blood forming stem cells. In the absence of CD117/Stem Cell Factor binding, hematopoietic stem cells that are currently occupying the bone marrow niches in SCID patients exit from the bone marrow.

Keywords

SCID, Immunodeficiency, Pediatric, Bone Marrow Transplantation, GVHD, Stem Cells, Chimerism, Transplant, BMT, Severe Combined Immunodeficiency, Antibodies, Monoclonal Antibodies, Humanized anti-CD117 Monoclonal Antibody (JSP191), Blood Stem Cell Transplant w/ anti-CD117 conditioning

Eligibility

You can join if…

Open to people ages 3 months to 12 years

  1. Typical SCID as defined by Primary Immune Deficiency Treatment Consortia including but not limited to the following subtypes:
    1. T-, B+, NK-: IL-2Rcγ deficient, JAK3-deficient (no longer enrolling)
    2. T-, B-, NK+: RAG1/2 deficient, Artemis-deficient
    3. T-, B+, NK+: IL7Rα deficient, CD3 subunit deficient, CD45 deficient (no longer enrolling) OR Variant SCID with absent or low T cell function, Omenn syndrome, Leaky SCID, Reticular dysgenesis, Adenosine deaminase deficiency, and Purine nucleoside phosphorylase deficiency may be included after consultation with the medical monitor.
  2. Patients with human leukocyte antigen (HLA) matched related or unrelated donors
  3. Adequate end organ function as defined in study protocol
  4. Age ≤ 12 years
  5. Prior donor of appropriate age (≥ 5 years old) available for re-collection of stem cells
  6. Previous allogeneic Hematopoietic Cell Transplantation HCT (≥ 6 months post initial transplant) with poor graft function

You CAN'T join if...

  1. Patients with any acute or uncontrolled infections
  2. Patients receiving any other investigational agents, or concurrent biological, chemotherapy, or radiation therapy
  3. Patients with active malignancies
  4. Active GVHD within 6 months prior to enrollment, or on immunosuppressive therapy for GVHD

Locations

  • UCLA Mattel Children's Hospital accepting new patients
    Los Angeles California 90095 United States
  • Children's Hospital of Los Angeles accepting new patients
    Los Angeles California 90027 United States

Lead Scientist at UCLA

  • Theodore B. Moore, M.D.
    Professor of Clinical, Pediatrics, Medicine. Authored (or co-authored) 87 research publications

Details

Status
accepting new patients
Start Date
Completion Date
(estimated)
Sponsor
Jasper Therapeutics, Inc.
ID
NCT02963064
Phase
Phase 1/2 research study
Study Type
Interventional
Participants
Expecting 40 study participants
Last Updated