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Posoleucel cells

Phase 2

BK Virus Nephropathy | Cell therapy | Infectious Disease |Kalaris Therapeutics, Inc.|Trials Updated: May 16, 2024

Posoleucel cells target and mechanism

Target class-Cel (Cell Tx)
ModalityCell therapy

Also known as Posoleucel (formerly known as ALVR105) cells

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment61

FDA Designations

No designations recorded

Posoleucel cells clinical trials

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 are being developed for BK virus nephropathy, a viral infection that affects kidney transplant recipients. The therapy is an investigational cell therapy in Phase 2 development for this indication. It is not yet approved for commercial use.

Who is developing Posoleucel cells?

Posoleucel cells are being developed by Kalaris Therapeutics, Inc., which trades under the ticker KLRS. The company is advancing this cell therapy as a potential treatment for BK virus nephropathy in kidney transplant patients.

What phase is Posoleucel cells in?

Posoleucel cells are in Phase 2 clinical development. The development program includes one completed Phase 2 trial. The therapy remains investigational and has not been approved by the FDA for any indication.

What clinical trials have been conducted with Posoleucel cells?

One Phase 2 clinical trial has been completed for Posoleucel cells: NCT04605484, titled "Study of Posoleucel (Formerly Known as ALVR105; Viralym-M) 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 the same as ALVR105?

Yes, Posoleucel was formerly known as ALVR105. The therapy has also been referred to as Viralym-M. These names refer to the same investigational cell therapy being developed by Kalaris Therapeutics for BK virus nephropathy.