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NCT02760498 · OUTCOME

Progression-Free Survival (PFS) by Independent Central Review

Study of REGN2810 in Patients With Advanced Cutaneous Squamous Cell Carcinoma · Source last updated 2025-05-28

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
Up to approximately 65 months (treatment period + follow-up including survival follow-up)

What was measured

PFS was measured from start of treatment until the first date of recurrent or PD, or death due to any cause. For participants with metastatic disease, RECIST v1.1 was used to determine PD. For participants with unresectable locally advanced disease, clinical response criteria were used. RECIST v1.1 Criteria: -PD: At least a 20% increase in the sum of the diameters of target lesions with the sum demonstrating an absolute increase of at least 5 mm (0.5 cm), or the appearance of one or more new lesions and/or unequivocal progression of existing non-target lesions. Clinical Response Criteria: -PD: increase of ≥ 25% (WHO criteria) in the sum of the products of perpendicular longest dimensions of target lesion(s) and/or the appearance of new lesions.

Analysis population: The FAS included all enrolled participants. Here, 'Overall number of participants analyzed' signifies participants who received at least one dose of cemiplimab and were evaluable for this outcome measure. Only Groups 1, 2, 3, 4, and 6 were planned for this outcome measure.

Groups in this outcome

Group 1 (Participants With mCSCC): Cemiplimab 3 mg/kg IV Q2W

Participants received cemiplimab 3 milligrams (mg)/kilogram (kg) intravenously (IV) every 2 weeks (Q2W) during each 8-week treatment cycle, for up to 96 weeks (12 cycles).

Group 2 (Participants With laCSCC): Cemiplimab 3 mg/kg IV Q2W

Participants received cemiplimab 3 mg/kg IV Q2W during each 8-week treatment cycle, for up to 96 weeks (12 cycles).

Group 3 (Participants With mCSCC): Cemiplimab 350 mg IV Q3W

Participants received cemiplimab 350 mg IV every 3 weeks (Q3W) during each 9-week treatment cycle, for up to 54 weeks (6 cycles).

Group 4 (Participants With mCSCC and laCSCC): Cemiplimab 600 mg IV Q4W

Participants received cemiplimab 600 mg IV every 4 weeks (Q4W) during each 8-week treatment cycle, for up to 48 weeks (6 cycles).

Group 6 (Participants With mCSCC and laCSCC): Cemiplimab 350 mg IV Q3W

Participants received cemiplimab 350 mg IV Q3W during each 9-week treatment cycle, for up to 108 weeks (12 cycles).

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

Analysis denominator · Participants

GroupSource count
Group 1 (Participants With mCSCC): Cemiplimab 3 mg/kg IV Q2W59
Group 2 (Participants With laCSCC): Cemiplimab 3 mg/kg IV Q2W78
Group 3 (Participants With mCSCC): Cemiplimab 350 mg IV Q3W56
Group 4 (Participants With mCSCC and laCSCC): Cemiplimab 600 mg IV Q4W63
Group 6 (Participants With mCSCC and laCSCC): Cemiplimab 350 mg IV Q3W165

Reported measurements

Source class 1
Values in months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Group 1 (Participants With mCSCC): Cemiplimab 3 mg/kg IV Q2W18.4Not reported7.353.2Not reported
Group 2 (Participants With laCSCC): Cemiplimab 3 mg/kg IV Q2W18.5Not reported11.143.8Not reported
Group 3 (Participants With mCSCC): Cemiplimab 350 mg IV Q3W21.7Not reported3.843.3Not reported
Group 4 (Participants With mCSCC and laCSCC): Cemiplimab 600 mg IV Q4W32.2Not reported16.6NANot reached due to insufficient number of events
Group 6 (Participants With mCSCC and laCSCC): Cemiplimab 350 mg IV Q3W16.6Not reported12.431.5Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        7.3
        upper Limit
        53.2
        value
        18.4
      2. group Id
        OG001
        lower Limit
        11.1
        upper Limit
        43.8
        value
        18.5
      3. group Id
        OG002
        lower Limit
        3.8
        upper Limit
        43.3
        value
        21.7
      4. comment
        Not reached due to insufficient number of events
        group Id
        OG003
        lower Limit
        16.6
        upper Limit
        NA
        value
        32.2
      5. group Id
        OG004
        lower Limit
        12.4
        upper Limit
        31.5
        value
        16.6
denoms
  1. counts
    1. group Id
      OG000
      value
      59
    2. group Id
      OG001
      value
      78
    3. group Id
      OG002
      value
      56
    4. group Id
      OG003
      value
      63
    5. group Id
      OG004
      value
      165
    units
    Participants
description
PFS was measured from start of treatment until the first date of recurrent or PD, or death due to any cause. For participants with metastatic disease, RECIST v1.1 was used to determine PD. For participants with unresectable locally advanced disease, clinical response criteria were used. RECIST v1.1 Criteria: -PD: At least a 20% increase in the sum of the diameters of target lesions with the sum demonstrating an absolute increase of at least 5 mm (0.5 cm), or the appearance of one or more new lesions and/or unequivocal progression of existing non-target lesions. Clinical Response Criteria: -PD: increase of ≥ 25% (WHO criteria) in the sum of the products of perpendicular longest dimensions of target lesion(s) and/or the appearance of new lesions.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received cemiplimab 3 milligrams (mg)/kilogram (kg) intravenously (IV) every 2 weeks (Q2W) during each 8-week treatment cycle, for up to 96 weeks (12 cycles).
    id
    OG000
    title
    Group 1 (Participants With mCSCC): Cemiplimab 3 mg/kg IV Q2W
  2. description
    Participants received cemiplimab 3 mg/kg IV Q2W during each 8-week treatment cycle, for up to 96 weeks (12 cycles).
    id
    OG001
    title
    Group 2 (Participants With laCSCC): Cemiplimab 3 mg/kg IV Q2W
  3. description
    Participants received cemiplimab 350 mg IV every 3 weeks (Q3W) during each 9-week treatment cycle, for up to 54 weeks (6 cycles).
    id
    OG002
    title
    Group 3 (Participants With mCSCC): Cemiplimab 350 mg IV Q3W
  4. description
    Participants received cemiplimab 600 mg IV every 4 weeks (Q4W) during each 8-week treatment cycle, for up to 48 weeks (6 cycles).
    id
    OG003
    title
    Group 4 (Participants With mCSCC and laCSCC): Cemiplimab 600 mg IV Q4W
  5. description
    Participants received cemiplimab 350 mg IV Q3W during each 9-week treatment cycle, for up to 108 weeks (12 cycles).
    id
    OG004
    title
    Group 6 (Participants With mCSCC and laCSCC): Cemiplimab 350 mg IV Q3W
param Type
MEDIAN
population Description
The FAS included all enrolled participants. Here, 'Overall number of participants analyzed' signifies participants who received at least one dose of cemiplimab and were evaluable for this outcome measure. Only Groups 1, 2, 3, 4, and 6 were planned for this outcome measure.
reporting Status
POSTED
time Frame
Up to approximately 65 months (treatment period + follow-up including survival follow-up)
title
Progression-Free Survival (PFS) by Independent Central Review
type
SECONDARY
unit Of Measure
months

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Preserved source evidence · Not medical advice