Study of Posoleucel (ALVR105, Formerly Viralym-M) for Multi-Virus Prevention in Patients Post-Allogeneic Hematopoietic Cell Transplant

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1 Year and over
This study is NOT accepting healthy volunteers
Inclusion Criteria:

• ≥1 year of age at the day of screening visit.
• No known or suspected clinically significant disease from AdV, BKV, CMV, EBV, HHV-6, and/or JCV
• Within 15 and 42 days of receiving a first allogeneic HCT and have demonstrated clinical engraftment
• Meet one or more of the following criteria at the time of randomization:
• Related (sibling) donor with at least one mismatch at one of these HLA-gene loci: HLA-A, -B or -DR
• Haploidentical donor
• Matched or Mismatched unrelated donor
• Use of umbilical cord blood as stem cell source
• Ex vivo graft manipulation resulting in T cell depletion
• Received anti-thymocyte globulin or alemtuzumab (Campath-1H) Key
Exclusion Criteria:

• History of AdV, BKV, CMV, EBV, HHV-6, and/or JCV end-organ disease within 6 months prior to randomization
• Evidence of active Grade >2 acute GVHD
• Presence of non-minor uncontrolled or progressive bacterial, viral or fungal infections
• Known history or current (suspected) diagnosis of CRS requiring treatment associated with the administration of peptides, proteins, and/or antibodies
• Ongoing therapy with high-dose systemic corticosteroids (ie, prednisone equivalent dose >0.5 mg/kg/day) within 24 hours prior to dosing
• Relapse of primary malignancy other than minimal residual disease Note: Other protocol defined Inclusion/Exclusion criteria may apply.

Biological: Posoleucel (ALVR105), Biological: Placebo

Adenovirus Infection, BK Virus Infection, Cytomegalovirus Infections, Epstein-Barr Virus Infections, Human Herpes Virus-6 Infection, JC Virus Infection

Allogeneic Hematopoietic Cell Transplant, ALVR105, Posoleucel, Viralym-M
Phase 2/Phase 3
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