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NCT04432597 · OUTCOME

Phase II: Percentage of Participants That Had a 2-fold Increase of Cluster of Differentiation 3 (CD3+) Tumor Infiltrating T Cells in Biopsies Performed Post-treatment Compared to Pre-treatment

HPV Vaccine PRGN-2009 Alone or in Combination With Anti-PDL1/TGF-Beta Trap (M7824) in Subjects With HPV Associated Cancers · Source last updated 2026-08-18

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
Pre-Treatment (Baseline) and anytime between Week 4-5 post treatment

What was measured

CD3+ tumor infiltrating T cells post treatment compared with pre-treatment reported with a 95% confidence interval assessed by multiplex CD3+ tumor infiltrating lymphocytes assessed by multiplex immunofluorescence from the surgical/ biopsy tissue collected pre- and post-treatment. The percentage of participants with doubling of baseline CD3+ tumor infiltrating lymphocytes will be provided as well as the 95% confidence interval. The CD3 cells are assessed by multiplex immunofluorescence in the biopsies. Doubling is the desired outcome.

Analysis population: 16/22 participants were evaluable because they received two treatments and had adequate biopsies.

Groups in this outcome

Phase II Cohort 2, Arm 2A, Dose Level 2

Phase II in newly diagnosed, untreated, locoregional p16-positove oropharyngeal cancer (OPC) (cohort 2) and in newly diagnosed. Arm 2A: HPV vaccine at recommended phase 2 dose (RP2D) as determined at completion of Arm 1A. HPV vaccine at 5x10\^11 Viral Particles (VP).

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

Analysis denominator · Participants

GroupSource count
Phase II Cohort 2, Arm 2A, Dose Level 216

Reported measurements

Source class 1
Values in Percentage of Participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Phase II Cohort 2, Arm 2A, Dose Level 212.5Not reported3.536.0Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        3.5
        upper Limit
        36.0
        value
        12.5
denoms
  1. counts
    1. group Id
      OG000
      value
      16
    units
    Participants
description
CD3+ tumor infiltrating T cells post treatment compared with pre-treatment reported with a 95% confidence interval assessed by multiplex CD3+ tumor infiltrating lymphocytes assessed by multiplex immunofluorescence from the surgical/ biopsy tissue collected pre- and post-treatment. The percentage of participants with doubling of baseline CD3+ tumor infiltrating lymphocytes will be provided as well as the 95% confidence interval. The CD3 cells are assessed by multiplex immunofluorescence in the biopsies. Doubling is the desired outcome.
dispersion Type
95% Confidence Interval
groups
  1. description
    Phase II in newly diagnosed, untreated, locoregional p16-positove oropharyngeal cancer (OPC) (cohort 2) and in newly diagnosed. Arm 2A: HPV vaccine at recommended phase 2 dose (RP2D) as determined at completion of Arm 1A. HPV vaccine at 5x10\^11 Viral Particles (VP).
    id
    OG000
    title
    Phase II Cohort 2, Arm 2A, Dose Level 2
param Type
NUMBER
population Description
16/22 participants were evaluable because they received two treatments and had adequate biopsies.
reporting Status
POSTED
time Frame
Pre-Treatment (Baseline) and anytime between Week 4-5 post treatment
title
Phase II: Percentage of Participants That Had a 2-fold Increase of Cluster of Differentiation 3 (CD3+) Tumor Infiltrating T Cells in Biopsies Performed Post-treatment Compared to Pre-treatment
type
PRIMARY
unit Of Measure
Percentage of Participants

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

Preserved source evidence · Independent clinical review pending · Not medical advice