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NCT02663518 · OUTCOME

Part 4: Number of Participants With Positive Anti-Drug Antibody (ADA) and Neutralizing Antibodies (NAb)

A Trial of PF-07901800 (TTI-621) for Patients With Hematologic Malignancies and Selected Solid Tumors · Source last updated 2024-05-10

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

Measure
COUNT_OF_PARTICIPANTS
Unit
Participants
Interval / dispersion
Not reported
Time frame
Part 4: From pre-infusion on day 1 up to end of study treatment (maximum treatment exposure for Part 4 was 667 days)

What was measured

A participant was ADA (or NAb) positive if: (1) baseline titer is missing or negative and participants had \>1 post-treatment positive titer (treatment-induced), or (2) positive titer at baseline and had a \> \[4-fold dilution increase\] in titer from baseline in \> 1 post-treatment sample (treatment-boosted).

Analysis population: Immunogenicity analysis population includes all treated participants with at least one (ADA) Anti-Drug Antibody sample (pre-dose or post-treatment) analyzed. Here, "Number of Participants Analyzed" refers to participants evaluable for this outcome measure.

Groups in this outcome

Part 4: Ontorpacept (PF-07901800/TTI-621) 0.5 mg/kg

Participants with relapsed or refractory CTCL received TTI-621 0.5 mg/kg infusion once weekly until disease progression, unacceptable toxicity, or other reasons for treatment discontinuation occurred.

Part 4: Ontorpacept (PF-07901800/TTI-621) 0.7 mg/kg

Participants with relapsed or refractory CTCL received TTI-621 0.7 mg/kg infusion once weekly until disease progression, unacceptable toxicity, or other reasons for treatment discontinuation occurred.

Part 4: Ontorpacept (PF-07901800/TTI-621) 1.0 mg/kg

Participants with relapsed or refractory CTCL received TTI-621 1.0 mg/kg infusion once weekly until disease progression, unacceptable toxicity, or other reasons for treatment discontinuation occurred.

Part 4: Ontorpacept (PF-07901800/TTI-621) 1.4 mg/kg

Participants with relapsed or refractory CTCL received TTI-621 1.4 mg/kg infusion once weekly until disease progression, unacceptable toxicity, or other reasons for treatment discontinuation occurred.

Part 4: Ontorpacept (PF-07901800/TTI-621) 2.0 mg/kg

Participants with relapsed or refractory CTCL received TTI-621 2.0 mg/kg infusion once weekly until disease progression, unacceptable toxicity, or other reasons for treatment discontinuation occurred.

Part 4: Ontorpacept (PF-07901800/TTI-621) Q2W / 2.0 mg/kg

Participants with relapsed or refractory CTCL received a 2.0 mg/kg TTI-621 infusion once every 2 weeks until disease progression, unacceptable toxicity, or other reasons for treatment discontinuation occurred.

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

Analysis denominator · Participants

GroupSource count
Part 4: Ontorpacept (PF-07901800/TTI-621) 0.5 mg/kg3
Part 4: Ontorpacept (PF-07901800/TTI-621) 0.7 mg/kg3
Part 4: Ontorpacept (PF-07901800/TTI-621) 1.0 mg/kg6
Part 4: Ontorpacept (PF-07901800/TTI-621) 1.4 mg/kg3
Part 4: Ontorpacept (PF-07901800/TTI-621) 2.0 mg/kg11
Part 4: Ontorpacept (PF-07901800/TTI-621) Q2W / 2.0 mg/kg4

Reported measurements

ADA Positive: Overall Incidence
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Part 4: Ontorpacept (PF-07901800/TTI-621) 0.5 mg/kg0Not reportedNot reportedNot reportedNot reported
Part 4: Ontorpacept (PF-07901800/TTI-621) 0.7 mg/kg0Not reportedNot reportedNot reportedNot reported
Part 4: Ontorpacept (PF-07901800/TTI-621) 1.0 mg/kg0Not reportedNot reportedNot reportedNot reported
Part 4: Ontorpacept (PF-07901800/TTI-621) 1.4 mg/kg0Not reportedNot reportedNot reportedNot reported
Part 4: Ontorpacept (PF-07901800/TTI-621) 2.0 mg/kg0Not reportedNot reportedNot reportedNot reported
Part 4: Ontorpacept (PF-07901800/TTI-621) Q2W / 2.0 mg/kg0Not reportedNot reportedNot reportedNot reported
NAb Positive: Overall Incidence
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Part 4: Ontorpacept (PF-07901800/TTI-621) 0.5 mg/kg0Not reportedNot reportedNot reportedNot reported
Part 4: Ontorpacept (PF-07901800/TTI-621) 0.7 mg/kg0Not reportedNot reportedNot reportedNot reported
Part 4: Ontorpacept (PF-07901800/TTI-621) 1.0 mg/kg0Not reportedNot reportedNot reportedNot reported
Part 4: Ontorpacept (PF-07901800/TTI-621) 1.4 mg/kg0Not reportedNot reportedNot reportedNot reported
Part 4: Ontorpacept (PF-07901800/TTI-621) 2.0 mg/kg0Not reportedNot reportedNot reportedNot reported
Part 4: Ontorpacept (PF-07901800/TTI-621) Q2W / 2.0 mg/kg0Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        0
      2. group Id
        OG001
        value
        0
      3. group Id
        OG002
        value
        0
      4. group Id
        OG003
        value
        0
      5. group Id
        OG004
        value
        0
      6. group Id
        OG005
        value
        0
    title
    ADA Positive: Overall Incidence
  2. categories
    1. measurements
      1. group Id
        OG000
        value
        0
      2. group Id
        OG001
        value
        0
      3. group Id
        OG002
        value
        0
      4. group Id
        OG003
        value
        0
      5. group Id
        OG004
        value
        0
      6. group Id
        OG005
        value
        0
    title
    NAb Positive: Overall Incidence
denoms
  1. counts
    1. group Id
      OG000
      value
      3
    2. group Id
      OG001
      value
      3
    3. group Id
      OG002
      value
      6
    4. group Id
      OG003
      value
      3
    5. group Id
      OG004
      value
      11
    6. group Id
      OG005
      value
      4
    units
    Participants
description
A participant was ADA (or NAb) positive if: (1) baseline titer is missing or negative and participants had \>1 post-treatment positive titer (treatment-induced), or (2) positive titer at baseline and had a \> \[4-fold dilution increase\] in titer from baseline in \> 1 post-treatment sample (treatment-boosted).
groups
  1. description
    Participants with relapsed or refractory CTCL received TTI-621 0.5 mg/kg infusion once weekly until disease progression, unacceptable toxicity, or other reasons for treatment discontinuation occurred.
    id
    OG000
    title
    Part 4: Ontorpacept (PF-07901800/TTI-621) 0.5 mg/kg
  2. description
    Participants with relapsed or refractory CTCL received TTI-621 0.7 mg/kg infusion once weekly until disease progression, unacceptable toxicity, or other reasons for treatment discontinuation occurred.
    id
    OG001
    title
    Part 4: Ontorpacept (PF-07901800/TTI-621) 0.7 mg/kg
  3. description
    Participants with relapsed or refractory CTCL received TTI-621 1.0 mg/kg infusion once weekly until disease progression, unacceptable toxicity, or other reasons for treatment discontinuation occurred.
    id
    OG002
    title
    Part 4: Ontorpacept (PF-07901800/TTI-621) 1.0 mg/kg
  4. description
    Participants with relapsed or refractory CTCL received TTI-621 1.4 mg/kg infusion once weekly until disease progression, unacceptable toxicity, or other reasons for treatment discontinuation occurred.
    id
    OG003
    title
    Part 4: Ontorpacept (PF-07901800/TTI-621) 1.4 mg/kg
  5. description
    Participants with relapsed or refractory CTCL received TTI-621 2.0 mg/kg infusion once weekly until disease progression, unacceptable toxicity, or other reasons for treatment discontinuation occurred.
    id
    OG004
    title
    Part 4: Ontorpacept (PF-07901800/TTI-621) 2.0 mg/kg
  6. description
    Participants with relapsed or refractory CTCL received a 2.0 mg/kg TTI-621 infusion once every 2 weeks until disease progression, unacceptable toxicity, or other reasons for treatment discontinuation occurred.
    id
    OG005
    title
    Part 4: Ontorpacept (PF-07901800/TTI-621) Q2W / 2.0 mg/kg
param Type
COUNT_OF_PARTICIPANTS
population Description
Immunogenicity analysis population includes all treated participants with at least one (ADA) Anti-Drug Antibody sample (pre-dose or post-treatment) analyzed. Here, "Number of Participants Analyzed" refers to participants evaluable for this outcome measure.
reporting Status
POSTED
time Frame
Part 4: From pre-infusion on day 1 up to end of study treatment (maximum treatment exposure for Part 4 was 667 days)
title
Part 4: Number of Participants With Positive Anti-Drug Antibody (ADA) and Neutralizing Antibodies (NAb)
type
SECONDARY
unit Of Measure
Participants

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

Preserved source evidence · Not medical advice