MT2021-24: A Phase I Open Label Study to Evaluate the Safety and Tolerability of ISP-001 in Adult Patients with Mucopolysaccharidosis Type I Hurler-Scheie and Scheie


The purpose of the study is to determine the safety and effectiveness of a new procedure to treat Mucopolysaccharidosis Type I Hurler-Scheie and Scheie (MPS I). This procedure involves collecting some white blood cells (termed “B cells”) and growing them outside of the body in a laboratory. While the cells are in the lab, the B cells will be changed to produce more of the IDUA that is missing. This process is called “genetic modification.” The newly modified B cells are then infused back into the participant.

I'm interested

Male or Female
18 years and over
This study is NOT accepting healthy volunteers
Inclusion Criteria:

• diagnosis of Mucopolysaccharidosis type I Hurler-Scheie or Scheie syndrome
• creatinine clearance, calculated or measured directly, that is greater than 60ml/min/1.73m2
• ejection fraction at least 40% by echocardiogram
• must agree to stay <45-minute drive from the study site for a minimum of 5 days after cell infusion.
• must commit to traveling to the study site for the necessary follow-up evaluations.
Exclusion Criteria:

• known family inherited cancer syndrome
• had a previous hematopoietic stem cell transplant (HSCT)
• any medical condition likely to interfere with assessment of safety or efficacy of the study treatment (study staff will review)

Biological: Autologous Plasmablasts (B cells)

Rare Diseases

Mucopolysaccharidosis IH/S, Mucopolysaccharidosis IS

Paul Orchard -
Paul Orchard
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