TriangleNCT02563002 · OUTCOME
Progression-Free Survival (PFS) Per RECIST1.1 As Assessed by Central Imaging Vendor
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 59 months
What was measured
PFS was defined as the time from randomization to the first documented disease progression (PD) per RECIST 1.1 based on blinded central imaging vendor review or death due to any cause, whichever occurs first. Per RECIST 1.1, PD was defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum had to demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions was also considered PD. Hazards ratio (HR) and associated 95% confidence intervals (CIs) from a Cox proportional hazard model with Efron's method of tie handling and with a single treatment covariate was presented for the first course study treatment per protocol.
Analysis population: All randomized participants
Groups in this outcome
Pembrolizumab
Participants received pembrolizumab 200 mg intravenously (IV) on Day 1 of each 21-day cycle (Q3W) for up to 35 treatments (approximately 2 years). Eligible participants who stopped the initial course of pembrolizumab due to complete response (CR) or completed initial course of pembrolizumab and had stable disease but progressed after discontinuation, initiated a second course of pembrolizumab at the investigator's discretion for up to 17 cycles (approximately 1 year additional).
Standard of Care (SOC)
Participants received 1 of 6 possible standard chemotherapy regimens: mFOLFOX6, or mFOLFOX6+bevacizumab 5 mg/kg IV on Day 1 of each 2-week cycle, or mFOLFOX6+cetuximab 400 mg/m\^2 IV over 2 hours then 250 mg/m\^2 over 1 hour weekly in each 2-week cycle, or FOLFIRI, or FOLFIRI+bevacizumab 5 mg/kg IV on Day 1 of each 2-week cycle, or FOLFIRI+cetuximab 400 mg/m\^2 IV over 2 hours then 250 mg/m\^2 over 1 hour weekly in each 2-week cycle. Participants with documented disease progression following chemotherapy can crossover to receive pembrolizumab for up to 35 cycles (approximately 2 years). Eligible cross over participants who stopped pembrolizumab who stopped pembrolizumab and had stable disease but progressed after discontinuation, initiated a second course of pembrolizumab at the investigator's discretion for up to 17 cycles (approximately 1 year additional).
| Group | Source count |
|---|---|
| Pembrolizumab | 153 |
| Standard of Care (SOC) | 154 |
Reported measurements
Source class 1
| Group | Value | Spread | Lower | Upper | Comment |
|---|---|---|---|---|---|
| Pembrolizumab | 16.5 | Not reported | 5.4 | 38.1 | Not reported |
| Standard of Care (SOC) | 8.2 | Not reported | 6.1 | 10.2 | Not reported |
Source statistical analyses
- ci Lower Limit
- 0.45
- ci Num Sides
- TWO_SIDED
- ci Pct Value
- 95
- ci Upper Limit
- 0.79
- estimate Comment
- Based on Cox regression model with Efron's method of tie handling with treatment as a covariate.
- group Ids
- OG000
- OG001
- non Inferiority Type
- OTHER
- p Value
- 0.0001
- param Type
- Hazard Ratio (HR)
- param Value
- 0.59
- statistical Comment
- One-sided p-value based on log rank test
- statistical Method
- Log Rank
Complete source fields
- analyses
- ci Lower Limit
- 0.45
- ci Num Sides
- TWO_SIDED
- ci Pct Value
- 95
- ci Upper Limit
- 0.79
- estimate Comment
- Based on Cox regression model with Efron's method of tie handling with treatment as a covariate.
- group Ids
- OG000
- OG001
- non Inferiority Type
- OTHER
- p Value
- 0.0001
- param Type
- Hazard Ratio (HR)
- param Value
- 0.59
- statistical Comment
- One-sided p-value based on log rank test
- statistical Method
- Log Rank
- classes
- categories
- measurements
- group Id
- OG000
- lower Limit
- 5.4
- upper Limit
- 38.1
- value
- 16.5
- group Id
- OG001
- lower Limit
- 6.1
- upper Limit
- 10.2
- value
- 8.2
- denoms
- counts
- group Id
- OG000
- value
- 153
- group Id
- OG001
- value
- 154
- units
- Participants
- description
- PFS was defined as the time from randomization to the first documented disease progression (PD) per RECIST 1.1 based on blinded central imaging vendor review or death due to any cause, whichever occurs first. Per RECIST 1.1, PD was defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum had to demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions was also considered PD. Hazards ratio (HR) and associated 95% confidence intervals (CIs) from a Cox proportional hazard model with Efron's method of tie handling and with a single treatment covariate was presented for the first course study treatment per protocol.
- dispersion Type
- 95% Confidence Interval
- groups
- description
- Participants received pembrolizumab 200 mg intravenously (IV) on Day 1 of each 21-day cycle (Q3W) for up to 35 treatments (approximately 2 years). Eligible participants who stopped the initial course of pembrolizumab due to complete response (CR) or completed initial course of pembrolizumab and had stable disease but progressed after discontinuation, initiated a second course of pembrolizumab at the investigator's discretion for up to 17 cycles (approximately 1 year additional).
- id
- OG000
- title
- Pembrolizumab
- description
- Participants received 1 of 6 possible standard chemotherapy regimens: mFOLFOX6, or mFOLFOX6+bevacizumab 5 mg/kg IV on Day 1 of each 2-week cycle, or mFOLFOX6+cetuximab 400 mg/m\^2 IV over 2 hours then 250 mg/m\^2 over 1 hour weekly in each 2-week cycle, or FOLFIRI, or FOLFIRI+bevacizumab 5 mg/kg IV on Day 1 of each 2-week cycle, or FOLFIRI+cetuximab 400 mg/m\^2 IV over 2 hours then 250 mg/m\^2 over 1 hour weekly in each 2-week cycle. Participants with documented disease progression following chemotherapy can crossover to receive pembrolizumab for up to 35 cycles (approximately 2 years). Eligible cross over participants who stopped pembrolizumab who stopped pembrolizumab and had stable disease but progressed after discontinuation, initiated a second course of pembrolizumab at the investigator's discretion for up to 17 cycles (approximately 1 year additional).
- id
- OG001
- title
- Standard of Care (SOC)
- param Type
- MEDIAN
- population Description
- All randomized participants
- reporting Status
- POSTED
- time Frame
- Up to approximately 59 months
- title
- Progression-Free Survival (PFS) Per RECIST1.1 As Assessed by Central Imaging Vendor
- type
- PRIMARY
- unit Of Measure
- Months
Download exact source JSON → · Snapshot ctgov-results-191f4516d4760045304b24a0
Preserved source evidence · Independent clinical review pending · Not medical advice