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Multivirus-specific T cells Dose Level 1

Phase 1

Viral Infection | Monoclonal antibody | Infectious Disease |Kalaris Therapeutics, Inc.|Last Updated: May 30, 2019

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment21
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT01570283ARMS - Rapidly Generated Multivirus-Specific CTLs for Prophylaxis & Treatment of EBV, CMV, Adenovirus, HHV6 & BK VirusPHASE1 COMPLETED 21Sep 1, 2012Sep 1, 2017May 30, 20192 United States
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Study Endpoints
Primary Endpoints
Number of Participants With a DLT
42 days

DLT is defined as acute GvHD grades III-IV within 42 days of the last dose of CTLs, # of patients with Grade 3-5 infusion-related adverse events within 30 days of the last dose of CTLs, and # of patients with Grade 4-5 non-hematological adverse events within 30 days of the last dose of CTLs. GVHD grade III-IV scoring is based on the Blood and Marrow Transplant Clinical Trials Network (BMT CTN) GVHD scoring stamp or equivalent. Grade 3-5 infusion-related adverse events and Grade 4-5 non-hematological adverse events are graded by the NCI Common Terminology Criteria for Adverse Events (CTCAE), Version 4.X.

Secondary Endpoints
Percentage of Patients Who Have a Response in Anti-viral Activity
42 days
Percentage Change of Viral Load From Baseline to Follow-up
3 months
Median Peak Frequency of Specific T Cells Post-infusion
3 months
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Multivirus-specific T cells 5*10^6 mCTLs/m2 for ProphylaxisEXPERIMENTALCohort 1 prophylaxis: Participants were administrated 5\*10\^6 mCTLs/m multivirusspecific T cells intravenously for prophylaxis of EBV, CMV, Adenovirus, HHV6 and BK virus infections post allogeneic stem cell transplant.
Multivirus-specific T cells 5*10^6 mCTLs/m2 for TreatmentEXPERIMENTALCohort 1 treatment: Participants were administrated 5\*10\^6 mCTLs/m multivirusspecific T cells intravenously for treatment of EBV, CMV, Adenovirus, HHV6 and BK virus infections post allogeneic stem cell transplant.
Multivirus-specific T cells 1*10^7 mCTLs/m2 for ProphylaxisEXPERIMENTALCohort 2 prophylaxis: Participants were administrated 1\*10\^7 mCTLs/m multivirusspecific T cells intravenously for prophylaxis of EBV, CMV, Adenovirus, HHV6 and BK virus infections post allogeneic stem cell transplant.
Multivirus-specific T cells 1*10^7 mCTLs/m2 for TreatmentEXPERIMENTALCohort 2 treatment: Participants were administrated 1\*10\^7 mCTLs/m multivirusspecific T cells intravenously for treatment of EBV, CMV, Adenovirus, HHV6 and BK virus infections post allogeneic stem cell transplant.
Multivirus-specific T Cells 2*10^7 mCTLs/m2 for ProphylaxisEXPERIMENTALCohort 3 prophylaxis: Participants were administrated 2\*10\^7 mCTLs/m multivirusspecific T cells intravenously for prophylaxis of EBV, CMV, Adenovirus, HHV6 and BK virus infections post allogeneic stem cell transplant.
Multivirus-specific T Cells 2*10^7 mCTLs/m2 for TreatmentEXPERIMENTALCohort 3 treatment: Participants were administrated 2\*10\^7 mCTLs/m multivirusspecific T cells intravenously for treatment of EBV, CMV, Adenovirus, HHV6 and BK virus infections post allogeneic stem cell transplant.
Interventions
NameTypeDescription
Multivirus-specific T cells Dose Level 1BIOLOGICALThe feasibility and safety of 3 different dose levels will be evaluated and will determine the maximum tolerated dose (MTD) level. Dose Level One: 5x10\^6 mCTLs/m2 There may be an option of administering 2 additional doses (at the same level the patient was receiving), 28 days after the first dose, in subjects that have a partial response after one dose or who receive other therapy that may affect the persistence or function of the infused CTL.
Multivirus-specific T cells Dose Level 2BIOLOGICALThe feasibility and safety of 3 different dose levels will be evaluated and will determine the maximum tolerated dose (MTD) level. Dose Level Two: 1x10\^7 mCTLs/m2 There may be an option of administering 2 additional doses (at the same level the patient was receiving), 28 days after the first dose, in subjects that have a partial response after one dose or who receive other therapy that may affect the persistence or function of the infused CTL
Multivirus-specific T cells Dose Level 3BIOLOGICALThe feasibility and safety of 3 different dose levels will be evaluated and will determine the maximum tolerated dose (MTD) level. Dose Level Three: 2x10\^7 mCTLs/m2 There may be an option of administering 2 additional doses (at the same level the patient was receiving), 28 days after the first dose, in subjects that have a partial response after one dose or who receive other therapy that may affect the persistence or function of the infused CTL
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Eligibility Criteria
SexALL
Healthy VolunteersNo
Study Sites2

Inclusion Criteria: Patients will be eligible following any type of allogeneic transplant to receive CTLs as prevention or for early reactivations as defined below. 1. Prior myeloablative or non-myeloablative allogeneic hematopoietic stem cell transplant using either bone marrow or peripheral bloo...

Countries:United States
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