OMISIRGE offers rapid and sustained neutrophil recovery,* broad immune reconstitution, and transfusion independence with low acute and no chronic GvHD
For patients with SAA, transplant success begins with
overcoming key barriers before transplant can occur. See below for how OMISIRGE helps address them.
CHALLENGE
Donor timing
Prolonged time from diagnosis to transplant impacts outcomes1,2
As a manufactured cell therapy, OMISIRGE is predictable and ready for transplantation in 30 days
CHALLENGE
Donor availability
Allo-HCT has curative potential in SAA, with a matched related donor (MRD) being the ideal donor source, but not all patients have an available or suitable MRD2
OMISIRGE is banked and readily available, utilizing the youngest possible donor source; less stringent HLA matching is required3,4
CHALLENGE
Getting an adequate cell dose
Even with an available donor, obtaining an adequate minimum cell dose can be challenging5
OMISIRGE has a guaranteed minimum total of 9.2 x 107 CD34+ cells
CHALLENGE
Donor timing
- In patients receiving upfront HSCT, a delay from diagnosis to transplant of >6 months is the main prognostic factor for increased graft failure or death1
- Time from diagnosis to transplant greater than 3 months and heavy transfusion burden prior to HCT are associated with inferior transplant outcomes2
- Delays in time to transplant may increase the presence of HLA antibodies associated with shorter overall survival, reduced responses to IST, and higher risk of clonal evolution6
- As a manufactured cell therapy, OMISIRGE is ready for transplantation in 30 days
CHALLENGE
Donor availability
- 70–80% of children and young adults will lack an MRD2
- There is a 27–39% likelihood of finding a fully matched donor among adults aged 20–647
- Recipients of cells from donors >40 years of age have lower survival rates and higher rates of infection, graft failure, and acute GvHD8
- OMISIRGE utilizes the youngest possible donor source, banked for predictable availability3,4
CHALLENGE
Getting an adequate cell dose
- The minimal cell dose for bone marrow transplant from matched related and matched unrelated donors is 3 × 10⁶ CD34+ cells/kg to support reliable engraftment and reduce the risk of graft failure. However, this dose may not be achievable with all donors9
- In the OMISIRGE study, patients received a median CD34+ cell dose of 9.5 × 10⁶ cells/kg (range: 2.3–21.4 × 10⁶ cells/kg), resulting in rapid engraftment and immune reconstitution without concerns about the low cell doses that can occur with bone marrow harvest3
- OMISIRGE demonstrated low acute GvHD and no chronic GvHD, without the use of a bone marrow–derived graft4
*Early and sustained neutrophil recovery defined as ANC ≥500 cells/µL for 3 consecutive measurements on different days by Day 26, maintained at Days 42 and 100 post transplant.
Allo-HCT, Allogeneic hematopoietic cell transplantation; ANC, Absolute neutrophil count; GvHD, Graft-versus-host disease; HCT, Hematopoietic cell
transplantation; HLA, Human leukocyte antigen; HSCT, Hematopoietic stem cell transplantation; IST, Immunosuppressive therapy; SAA, Severe aplastic anemia.