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NCT03168438 · OUTCOME

Overall Response Rate

Letetresgene Autoleucel Engineered T Cells Alone and in Combination With Pembrolizumab in NY-ESO-1 Positive Multiple Myeloma · Source last updated 2022-01-11

Results reported by the registry submitting party. Population, time horizon, units and missing values must be read together.

Measure
NUMBER
Unit
Percentage of participants
Interval / dispersion
95% Confidence Interval
Time frame
Up to 108 weeks

What was measured

Overall response rate is defined as the percentage of participants with a best overall response (BOR) of confirmed stringent complete response (sCR), complete response (CR), very good partial response (VGPR), or partial response (PR) per International Myeloma Working Group (IMWG) Response Criteria (2016); where, PR: \>=50% reduction of serum M-Protein and reduction in 24-hour urinary M-protein by \>=90% or to \<200 milligrams (mg) per 24 hours; VGPR: Serum and urine M-protein detectable by immunofixation but not on electrophoresis or 90% or greater reduction in serum M-protein plus urine M-protein level \<100 mg per 24 hours; CR: Negative immunofixation on the serum and urine and disappearance of any soft tissue plasmacytomas and \<= 5% plasma cells in bone marrow; or sCR: CR as defined by normal free light chain (FLC) ratio and absence of clonal cells by immunohistochemistry. Confidence intervals were calculated using the exact (Clopper-Pearson) method.

Analysis population: Modified ITT Population

Groups in this outcome

GSK3377794

Eligible participants underwent leukapheresis to manufacture engineered T-cells. Participants then underwent lymphodepleting chemotherapy with cyclophosphamide and fludarabine followed by a single intravenous (IV) infusion of GSK3377794.

GSK3377794+Pembrolizumab

Eligible participants underwent leukapheresis to manufacture engineered T-cells. Participants then underwent lymphodepleting chemotherapy with cyclophosphamide and fludarabine followed by a single IV infusion of GSK3377794 in combination with pembrolizumab 200 milligrams (mg) administered as an IV infusion every 3 weeks up to Week 108.

Group identifiers and denominators belong to this outcome only. They may differ in another outcome or in safety reporting.

Analysis denominator · Participants

GroupSource count
GSK33777943
GSK3377794+Pembrolizumab3

Reported measurements

Source class 1
Values in Percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
GSK337779433.3Not reported0.890.6Not reported
GSK3377794+Pembrolizumab66.7Not reported9.499.2Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        0.8
        upper Limit
        90.6
        value
        33.3
      2. group Id
        OG001
        lower Limit
        9.4
        upper Limit
        99.2
        value
        66.7
denoms
  1. counts
    1. group Id
      OG000
      value
      3
    2. group Id
      OG001
      value
      3
    units
    Participants
description
Overall response rate is defined as the percentage of participants with a best overall response (BOR) of confirmed stringent complete response (sCR), complete response (CR), very good partial response (VGPR), or partial response (PR) per International Myeloma Working Group (IMWG) Response Criteria (2016); where, PR: \>=50% reduction of serum M-Protein and reduction in 24-hour urinary M-protein by \>=90% or to \<200 milligrams (mg) per 24 hours; VGPR: Serum and urine M-protein detectable by immunofixation but not on electrophoresis or 90% or greater reduction in serum M-protein plus urine M-protein level \<100 mg per 24 hours; CR: Negative immunofixation on the serum and urine and disappearance of any soft tissue plasmacytomas and \<= 5% plasma cells in bone marrow; or sCR: CR as defined by normal free light chain (FLC) ratio and absence of clonal cells by immunohistochemistry. Confidence intervals were calculated using the exact (Clopper-Pearson) method.
dispersion Type
95% Confidence Interval
groups
  1. description
    Eligible participants underwent leukapheresis to manufacture engineered T-cells. Participants then underwent lymphodepleting chemotherapy with cyclophosphamide and fludarabine followed by a single intravenous (IV) infusion of GSK3377794.
    id
    OG000
    title
    GSK3377794
  2. description
    Eligible participants underwent leukapheresis to manufacture engineered T-cells. Participants then underwent lymphodepleting chemotherapy with cyclophosphamide and fludarabine followed by a single IV infusion of GSK3377794 in combination with pembrolizumab 200 milligrams (mg) administered as an IV infusion every 3 weeks up to Week 108.
    id
    OG001
    title
    GSK3377794+Pembrolizumab
param Type
NUMBER
population Description
Modified ITT Population
reporting Status
POSTED
time Frame
Up to 108 weeks
title
Overall Response Rate
type
SECONDARY
unit Of Measure
Percentage of participants

Download exact source JSON → · Snapshot ctgov-results-25a395029948b04d52b1253f

Preserved source evidence · Not medical advice