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Posoleucel cells

Phase 2

BK Virus Nephropathy | Monoclonal antibody | Infectious Disease |Kalaris Therapeutics, Inc.|Last Updated: May 16, 2024

Success Probability

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment61

FDA Designations

No designations recorded

Clinical trial landscape

Posoleucel cells · 1 trial · 2 indications

Phase 2 1
NCT04605484Study of Posoleucel (Formerly Known as ALVR105; Viralym-M) in Kidney Transplant Patients With BK ViremiaBK Virus Nephropathy
COMPLETED61 Analytics
PHASE2COMPLETED
Study of Posoleucel (Formerly Known as ALVR105; Viralym-M) in Kidney Transplant Patients With BK Viremia
BK Virus NephropathyUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants Who Experienced a Treatment-emergent Adverse Event (TEAE)
Day 1 to Week 24

An adverse event (AE) was defined as any untoward medical occurrence in a clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. TEAEs are defined as AEs with a start date and time on or after the first dose of study treatment through the end of study. Clinically significant changes in vital signs, physical exams, laboratory assessments and electrocardiograms were also reported as TEAEs.

Secondary Endpoints

Change From Baseline in BK Viral Load
Baseline and Week 24
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
PosoleucelEXPERIMENTALArm 1: Regimen A
Posoleucel and PlaceboEXPERIMENTALArm 2: Regimen B
PlaceboPLACEBO_COMPARATORArm 3: Regimen A

Interventions

NameTypeDescription
Posoleucel (formerly known as ALVR105) cellsBIOLOGICALInfusion
Placebo (visually identical to Posoleucel)BIOLOGICALInfusion
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites33

Inclusion Criteria: * Patients who had a kidney transplant performed greater than or equal to 28 days prior to enrollment * At least 1 identified, suitably matched Posoleucel (ALVR105) cell line for infusion is available. * Capable of giving signed informed consent which includes compliance with th...

Countries:United States
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Frequently asked questions about Posoleucel cells

What is Posoleucel cells used for?

Posoleucel cells is an investigational therapy being studied for BK Virus Nephropathy, a viral infection that can affect kidney transplant patients. It is currently in Phase 2 clinical development and has not been approved by regulatory authorities.

What does Posoleucel cells target?

Posoleucel cells is a monoclonal antibody, though its specific molecular target has not been disclosed. It is being evaluated for its potential to address BK Virus Nephropathy in patients who have undergone kidney transplantation.

Who makes Posoleucel cells?

Posoleucel cells is being developed by Kalaris Therapeutics, Inc., a biopharmaceutical company traded on the stock exchange under the ticker symbol KLRS.

What phase is Posoleucel cells in?

Posoleucel cells is in Phase 2 clinical development. It is an investigational drug and has not received approval from the U.S. Food and Drug Administration or any other regulatory agency.

What clinical trials is Posoleucel cells in?

Posoleucel cells has one completed Phase 2 clinical trial, identified as NCT04605484, which studied the drug in kidney transplant patients with BK viremia. The trial enrolled 61 participants in the United States and was randomized, double-blind, and placebo-controlled.

Is Posoleucel cells the same as ALVR105 or Viralym-M?

Yes, Posoleucel cells was formerly known as ALVR105 and Viralym-M. The clinical trial NCT04605484 explicitly notes that Posoleucel was previously referred to by these alternative names.