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NCT04840615 · OUTCOME

Duration of Response

Intratumor Injection of Anti-Mesothelin Immunotoxin LMB-100 With Ipilimumab in Malignant Mesothelioma · Source last updated 2024-02-02

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

Measure
MEDIAN
Unit
Months
Interval / dispersion
95% Confidence Interval
Time frame
Median follow-up: 3.4 months (1.9 months and 5.0 months)

What was measured

Duration of response is defined as the median time criteria are met for partial or complete response to the first date that recurrence or progression is documented. Response was assessed by the Response Evaluation Criteria in Solid Tumors (RECIST) guideline (version 1.1). Partial response is at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum of diameters. Complete response is disappearance of all target lesions. Progression is at least a 20% increase in the sum of the diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. The appearance of one or more new lesions is also considered progressions.

Groups in this outcome

Dose Level 1: 400 mcg LMB-100

Dose Level 1: 400 mcg LMB-100 administered per dose, dose administered on days 1 and 4 of 21-day cycle, cycle 1 in participants with pleural or peritoneal mesothelioma. Those with pleural or peritoneal mesothelioma receiving intra-tumoral administration of LMB-100 + Ipilimumab for up to 4 cycles. For infusion related reactions precaution, all participants will be premedicated 30-60 minutes (+ 30 minutes) prior to each LMB-100 administration with the following medications: Diphenhydramine 25-50 mg by mouth (PO) or intravenous (IV) (or alternative antihistamine at adequate dose), Famotidine 20 mg by mouth (PO) or intravenous (IV) (or alternative histamine H2- receptor antagonists (H2) blocker at adequate dose), and Acetaminophen 650 mg by mouth (PO) or intravenous (IV). Additional infusion precaution at infusions of LMB-100 after Cycle 1 Day 1 (as appropriate): Dexamethasone 20 mg by mouth (PO), 6-12 hours prior to LMB-100 administration OR 10mg, intravenous (IV), 30-60 minutes prior to LMB-100 administration OR equivalent dose of another corticosteroid as clinically indicated. Biopsy as feasible at screening, Cycle 1 Day 1 and 5, Cycle 2, 3, \& 4 Day 1, and Cycle 4 Day 21 (±7 days).

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

Analysis denominator · Participants

GroupSource count
Dose Level 1: 400 mcg LMB-1002

Reported measurements

Source class 1
Values in Months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Dose Level 1: 400 mcg LMB-100NANot reportedNANASince participants had no response, we cannot provide duration of response.
Complete source fields
classes
  1. categories
    1. measurements
      1. comment
        Since participants had no response, we cannot provide duration of response.
        group Id
        OG000
        lower Limit
        NA
        upper Limit
        NA
        value
        NA
denoms
  1. counts
    1. group Id
      OG000
      value
      2
    units
    Participants
description
Duration of response is defined as the median time criteria are met for partial or complete response to the first date that recurrence or progression is documented. Response was assessed by the Response Evaluation Criteria in Solid Tumors (RECIST) guideline (version 1.1). Partial response is at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum of diameters. Complete response is disappearance of all target lesions. Progression is at least a 20% increase in the sum of the diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. The appearance of one or more new lesions is also considered progressions.
dispersion Type
95% Confidence Interval
groups
  1. description
    Dose Level 1: 400 mcg LMB-100 administered per dose, dose administered on days 1 and 4 of 21-day cycle, cycle 1 in participants with pleural or peritoneal mesothelioma. Those with pleural or peritoneal mesothelioma receiving intra-tumoral administration of LMB-100 + Ipilimumab for up to 4 cycles. For infusion related reactions precaution, all participants will be premedicated 30-60 minutes (+ 30 minutes) prior to each LMB-100 administration with the following medications: Diphenhydramine 25-50 mg by mouth (PO) or intravenous (IV) (or alternative antihistamine at adequate dose), Famotidine 20 mg by mouth (PO) or intravenous (IV) (or alternative histamine H2- receptor antagonists (H2) blocker at adequate dose), and Acetaminophen 650 mg by mouth (PO) or intravenous (IV). Additional infusion precaution at infusions of LMB-100 after Cycle 1 Day 1 (as appropriate): Dexamethasone 20 mg by mouth (PO), 6-12 hours prior to LMB-100 administration OR 10mg, intravenous (IV), 30-60 minutes prior to LMB-100 administration OR equivalent dose of another corticosteroid as clinically indicated. Biopsy as feasible at screening, Cycle 1 Day 1 and 5, Cycle 2, 3, \& 4 Day 1, and Cycle 4 Day 21 (±7 days).
    id
    OG000
    title
    Dose Level 1: 400 mcg LMB-100
param Type
MEDIAN
reporting Status
POSTED
time Frame
Median follow-up: 3.4 months (1.9 months and 5.0 months)
title
Duration of Response
type
SECONDARY
unit Of Measure
Months

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Preserved source evidence · Not medical advice