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Veliparib, Pembrolizumab, and Combination Chemotherapy in Treating Patient With Locally Advanced Rectal Cancer

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ClinicalTrials.gov Identifier: NCT02921256
Recruitment Status : Completed
First Posted : October 3, 2016
Results First Posted : June 9, 2023
Last Update Posted : April 24, 2024
Sponsor:
Collaborator:
NRG Oncology
Information provided by (Responsible Party):
National Cancer Institute (NCI)

Study Type Interventional
Study Design Allocation: Randomized;   Intervention Model: Parallel Assignment;   Masking: None (Open Label);   Primary Purpose: Treatment
Conditions Rectal Adenocarcinoma
Stage II Rectal Cancer AJCC v7
Stage III Rectal Cancer AJCC v7
Interventions Drug: Capecitabine
Drug: Fluorouracil
Radiation: Intensity-Modulated Radiation Therapy
Drug: Leucovorin
Drug: Oxaliplatin
Biological: Pembrolizumab
Drug: Veliparib
Enrollment 363
Recruitment Details  
Pre-assignment Details  
Arm/Group Title Arm I (mFOLFOX6, RT, Capecitabine) Arm II (mFOLFOX6, RT, Capecitabine, Veliparib) Arm III (mFOLFOX6, RT, Capecitabine, Pembrolizumab)
Hide Arm/Group Description

Patients receive mFOLFOX6 regimen consisting of oxaliplatin IV over 2 hours on day 1, leucovorin calcium IV over 2 hours on day 1, and fluorouracil IV continuously over 46-48 hours on days 1-2. Treatment repeats every 2 weeks for 8 cycles in the absence of disease progression or unacceptable toxicity. 3-4 weeks after last does of mFOLFOX6 patient undergo RT and receive capecitabine PO BID Monday-Friday for 5 weeks in the absence of disease progression or unacceptable toxicity. Participants assigned to Arm I concurrently with Arm II are described as Arm Ia and participants assigned to Arm I concurrently with Arm III are described as Arm Ib.

Capecitabine: Given PO

Fluorouracil: Given IV

Intensity-Modulated Radiation Therapy: Undergo intensity modulated radiation therapy

Leucovorin: Given IV

Oxaliplatin: Given IV

Patients receive mFOLFOX6 regimen consisting of oxaliplatin IV over 2 hours on day 1, leucovorin calcium IV over 2 hours on day 1, and fluorouracil IV continuously over 46-48 hours on days 1-2. Treatment repeats every 2 weeks for up to 8 cycles in the absence of disease progression or unacceptable toxicity. 3-4 weeks after last does of mFOLFOX6 patient undergo RT and receive capecitabine PO BID and veliparib PO BID Monday-Friday for 5 weeks in the absence of disease progression or unacceptable toxicity.

Capecitabine: Given PO

Fluorouracil: Given IV

Intensity-Modulated Radiation Therapy: Undergo intensity modulated radiation therapy

Leucovorin: Given IV

Oxaliplatin: Given IV

Veliparib: Given PO

ARM III: Patients receive mFOLFOX6 regimen consisting of oxaliplatin IV over 2 hours, leucovorin calcium IV over 2 hours on day 1, and fluorouracil IV continuously over 46-48 hours on days 1-2. Treatment repeats every 2 weeks for 8 cycles in the absence of disease progression or unacceptable toxicity. 3-4 weeks after last does of mFOLFOX6 patient undergo RT and receive capecitabine PO BID Monday-Friday for 5 weeks. They also receive pembrolizumab IV over 30 minutes every 3 weeks beginning on day 1 of RT for up to 6 cycles in the absence of disease progression or unacceptable toxicity.

Capecitabine: Given PO

Fluorouracil: Given IV

Intensity-Modulated Radiation Therapy: Undergo intensity modulated radiation therapy

Leucovorin: Given IV

Oxaliplatin: Given IV

Pembrolizumab: Given IV

Period Title: Arm 1a v. Arm II
Started 88 90 0
Completed 72 57 0
Not Completed 16 33 0
Reason Not Completed
Adverse Event             6             15             0
Death             0             2             0
Lack of Efficacy             2             0             0
Lost to Follow-up             2             9             0
Physician Decision             1             1             0
Withdrawal by Subject             5             6             0
Period Title: Arm Ib v Arm III
Started 95 0 90
Completed 71 0 75
Not Completed 24 0 15
Reason Not Completed
Adverse Event             9             0             4
Death             1             0             1
Lack of Efficacy             2             0             2
Lost to Follow-up             1             0             3
Physician Decision             4             0             1
Withdrawal by Subject             7             0             4
Arm/Group Title Arm Ia (mFOLFOX6, RT, Capecitabine) Arm II (mFOLFOX6, RT, Capecitabine, Veliparib) Arm Ib (mFOLFOX6, RT, Capecitabine) Arm III (mFOLFOX6, RT, Capecitabine, Pembrolizumab) Total
Hide Arm/Group Description

Participants assigned to active comparator arm concurrent to Arm II.Patients receive mFOLFOX6 regimen consisting of oxaliplatin IV over 2 hours on day 1, leucovorin calcium IV over 2 hours on day 1, and fluorouracil IV continuously over 46-48 hours on days 1-2. Treatment repeats every 2 weeks for 8 cycles in the absence of disease progression or unacceptable toxicity. 3-4 weeks after last does of mFOLFOX6 patient undergo RT and receive capecitabine PO BID Monday-Friday for 5 weeks in the absence of disease progression or unacceptable toxicity.

Capecitabine: Given PO

Fluorouracil: Given IV

Intensity-Modulated Radiation Therapy: Undergo intensity modulated radiation therapy

Leucovorin: Given IV

Oxaliplatin: Given IV

Patients receive mFOLFOX6 regimen consisting of oxaliplatin IV over 2 hours on day 1, leucovorin calcium IV over 2 hours on day 1, and fluorouracil IV continuously over 46-48 hours on days 1-2. Treatment repeats every 2 weeks for up to 8 cycles in the absence of disease progression or unacceptable toxicity. 3-4 weeks after last does of mFOLFOX6 patient undergo RT and receive capecitabine PO BID and veliparib PO BID Monday-Friday for 5 weeks in the absence of disease progression or unacceptable toxicity.

Capecitabine: Given PO

Fluorouracil: Given IV

Intensity-Modulated Radiation Therapy: Undergo intensity modulated radiation therapy

Leucovorin: Given IV

Oxaliplatin: Given IV

Veliparib: Given PO

Participants assigned to active comparator arm concurrent to Arm III. Patients receive mFOLFOX6 regimen consisting of oxaliplatin IV over 2 hours on day 1, leucovorin calcium IV over 2 hours on day 1, and fluorouracil IV continuously over 46-48 hours on days 1-2. Treatment repeats every 2 weeks for 8 cycles in the absence of disease progression or unacceptable toxicity. 3-4 weeks after last does of mFOLFOX6 patient undergo RT and receive capecitabine PO BID Monday-Friday for 5 weeks in the absence of disease progression or unacceptable toxicity.

Capecitabine: Given PO

Fluorouracil: Given IV

Intensity-Modulated Radiation Therapy: Undergo intensity modulated radiation therapy

Leucovorin: Given IV

Oxaliplatin: Given IV

ARM III: Patients receive mFOLFOX6 regimen consisting of oxaliplatin IV over 2 hours, leucovorin calcium IV over 2 hours on day 1, and fluorouracil IV continuously over 46-48 hours on days 1-2. Treatment repeats every 2 weeks for 8 cycles in the absence of disease progression or unacceptable toxicity. 3-4 weeks after last does of mFOLFOX6 patient undergo RT and receive capecitabine PO BID Monday-Friday for 5 weeks. They also receive pembrolizumab IV over 30 minutes every 3 weeks beginning on day 1 of RT for up to 6 cycles in the absence of disease progression or unacceptable toxicity.

Capecitabine: Given PO

Fluorouracil: Given IV

Intensity-Modulated Radiation Therapy: Undergo intensity modulated radiation therapy

Leucovorin: Given IV

Oxaliplatin: Given IV

Pembrolizumab: Given IV

Total of all reporting groups
Overall Number of Baseline Participants 88 90 95 90 363
Hide Baseline Analysis Population Description
[Not Specified]
Age, Continuous  
Mean (Standard Deviation)
Unit of measure:  Years
Number Analyzed 88 participants 90 participants 95 participants 90 participants 363 participants
55.5  (10.9) 56.0  (9.8) 55.7  (11.2) 55.5  (11.1) 55.6  (10.7)
Sex: Female, Male  
Measure Type: Count of Participants
Unit of measure:  Participants
Number Analyzed 88 participants 90 participants 95 participants 90 participants 363 participants
Female
29
  33.0%
29
  32.2%
29
  30.5%
30
  33.3%
117
  32.2%
Male
59
  67.0%
61
  67.8%
66
  69.5%
60
  66.7%
246
  67.8%
Ethnicity (NIH/OMB)  
Measure Type: Count of Participants
Unit of measure:  Participants
Number Analyzed 88 participants 90 participants 95 participants 90 participants 363 participants
Hispanic or Latino
3
   3.4%
1
   1.1%
5
   5.3%
9
  10.0%
18
   5.0%
Not Hispanic or Latino
84
  95.5%
86
  95.6%
83
  87.4%
78
  86.7%
331
  91.2%
Unknown or Not Reported
1
   1.1%
3
   3.3%
7
   7.4%
3
   3.3%
14
   3.9%
Race (NIH/OMB)  
Measure Type: Count of Participants
Unit of measure:  Participants
Number Analyzed 88 participants 90 participants 95 participants 90 participants 363 participants
American Indian or Alaska Native
1
   1.1%
0
   0.0%
2
   2.1%
1
   1.1%
4
   1.1%
Asian
2
   2.3%
8
   8.9%
4
   4.2%
3
   3.3%
17
   4.7%
Native Hawaiian or Other Pacific Islander
0
   0.0%
1
   1.1%
0
   0.0%
0
   0.0%
1
   0.3%
Black or African American
4
   4.5%
7
   7.8%
6
   6.3%
2
   2.2%
19
   5.2%
White
76
  86.4%
71
  78.9%
77
  81.1%
77
  85.6%
301
  82.9%
More than one race
0
   0.0%
0
   0.0%
0
   0.0%
1
   1.1%
1
   0.3%
Unknown or Not Reported
5
   5.7%
3
   3.3%
6
   6.3%
6
   6.7%
20
   5.5%
1.Primary Outcome
Title Neoadjuvant Rectal Cancer (NAR) Score
Hide Description A linear regression model that controls for the stratification factors (cT-stage and cN-stage) will be used. Mean NAR scores along with standard errors and confidence intervals will be reported by treatment. The NAR score ranges from zero to 100 with lower values corresponding to better prognosis.
Time Frame Baseline to up to 3 years
Hide Outcome Measure Data
Hide Analysis Population Description
Patients who had a tumor resection and have pathology o the tumor specimen were evaluable for the primary endpoint of NAR score and included in the analysis.
Arm/Group Title Arm Ia (mFOLFOX6, RT, Capecitabine) Arm II (mFOLFOX6, RT, Capecitabine, Veliparib) Arm Ib (mFOLFOX6, RT, Capecitabine) Arm III (mFOLFOX6, RT, Capecitabine, Pembrolizumab)
Hide Arm/Group Description:

Participants assigned to active comparator arm concurrent to Arm II. Patients receive mFOLFOX6 regimen consisting of oxaliplatin IV over 2 hours on day 1, leucovorin calcium IV over 2 hours on day 1, and fluorouracil IV continuously over 46-48 hours on days 1-2. Treatment repeats every 2 weeks for 8 cycles in the absence of disease progression or unacceptable toxicity. 3-4 weeks after last does of mFOLFOX6 patient undergo RT and receive capecitabine PO BID Monday-Friday for 5 weeks in the absence of disease progression or unacceptable toxicity.

Capecitabine: Given PO

Fluorouracil: Given IV

Intensity-Modulated Radiation Therapy: Undergo intensity modulated radiation therapy

Leucovorin: Given IV

Oxaliplatin: Given IV

Patients receive mFOLFOX6 regimen consisting of oxaliplatin IV over 2 hours on day 1, leucovorin calcium IV over 2 hours on day 1, and fluorouracil IV continuously over 46-48 hours on days 1-2. Treatment repeats every 2 weeks for up to 8 cycles in the absence of disease progression or unacceptable toxicity. 3-4 weeks after last does of mFOLFOX6 patient undergo RT and receive capecitabine PO BID and veliparib PO BID Monday-Friday for 5 weeks in the absence of disease progression or unacceptable toxicity.

Capecitabine: Given PO

Fluorouracil: Given IV

Intensity-Modulated Radiation Therapy: Undergo intensity modulated radiation therapy

Leucovorin: Given IV

Oxaliplatin: Given IV

Veliparib: Given PO

Participants assigned to active comparator arm concurrent to ARM III. Patients receive mFOLFOX6 regimen consisting of oxaliplatin IV over 2 hours, leucovorin calcium IV over 2 hours on day 1, and fluorouracil IV continuously over 46-48 hours on days 1-2. Treatment repeats every 2 weeks for 8 cycles in the absence of disease progression or unacceptable toxicity. 3-4 weeks after last does of mFOLFOX6 patient undergo RT and receive capecitabine PO BID Monday-Friday for 5 weeks in the absence of disease progression or unacceptable toxicity.

Capecitabine: Given PO

Fluorouracil: Given IV

Intensity-Modulated Radiation Therapy: Undergo intensity modulated radiation therapy

Leucovorin: Given IV

ARM III: Patients receive mFOLFOX6 regimen consisting of oxaliplatin IV over 2 hours, leucovorin calcium IV over 2 hours on day 1, and fluorouracil IV continuously over 46-48 hours on days 1-2. Treatment repeats every 2 weeks for 8 cycles in the absence of disease progression or unacceptable toxicity. 3-4 weeks after last dose of mFOLFOX6 patient undergoes RT and receives capecitabine PO BID Monday-Friday for 5 weeks. They also receive pembrolizumab IV over 30 minutes every 3 weeks beginning on day 1 of RT for up to 6 cycles in the absence of disease progression or unacceptable toxicity.

Capecitabine: Given PO

Fluorouracil: Given IV

Intensity-Modulated Radiation Therapy: Undergo intensity modulated radiation therapy

Leucovorin: Given IV

Oxaliplatin: Given IV

Pembrolizumab:Given IV

Overall Number of Participants Analyzed 72 68 68 69
Mean (95% Confidence Interval)
Unit of Measure: score on a scale
12.6
(9.8 to 15.3)
13.7
(10.2 to 17.2)
14.1
(10.7 to 17.4)
11.5
(8.5 to 14.5)
Hide Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Arm Ia (mFOLFOX6, RT, Capecitabine), Arm II (mFOLFOX6, RT, Capecitabine, Veliparib)
Comments [Not Specified]
Type of Statistical Test Superiority
Comments [Not Specified]
Statistical Test of Hypothesis P-Value 0.69
Comments [Not Specified]
Method Regression, Linear
Comments [Not Specified]
Hide Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection Arm Ib (mFOLFOX6, RT, Capecitabine), Arm III (mFOLFOX6, RT, Capecitabine, Pembrolizumab)
Comments [Not Specified]
Type of Statistical Test Superiority
Comments [Not Specified]
Statistical Test of Hypothesis P-Value 0.26
Comments [Not Specified]
Method Regression, Linear
Comments [Not Specified]
2.Secondary Outcome
Title Overall Survival
Hide Description Analyzed using the stratified log rank test with strata cT-stage and cN-stage. Kaplan-Meier plots will illustrate the distribution of these endpoints by treatment. Cox regression models will be used to estimate hazard ratios and associated confidence intervals.
Time Frame Time from start of study treatment, assessed up to 3 years
Outcome Measure Data Not Reported
3.Secondary Outcome
Title Disease Free Survival
Hide Description Analyzed using the stratified log rank test with strata cT-stage and cN-stage. Kaplan-Meier plots will illustrate the distribution of these endpoints by treatment. Cox regression models will be used to estimate hazard ratios and associated confidence intervals.
Time Frame Time from start of study treatment, assessed up to 3 years
Outcome Measure Data Not Reported
4.Secondary Outcome
Title Rate of Pathologic Complete Response (Nodes and Tumor) ypT0 and ypN0
Hide Description Pathologic Complete Response means no remaining cancer detectable in the pathology sample. Analyzed by a logistic regression model that controls for the stratification factors (cT-stage and cN-stage). Observed proportions along with confidence intervals will be presented by treatment.
Time Frame Up to 3 years
Hide Outcome Measure Data
Hide Analysis Population Description
[Not Specified]
Arm/Group Title Arm Ia (mFOLFOX6, RT, Capecitabine) Arm II (mFOLFOX6, RT, Capecitabine, Veliparib) Arm Ib (mFOLFOX6, RT, Capecitabine) Arm III (mFOLFOX6, RT, Capecitabine, Pembrolizumab)
Hide Arm/Group Description:

Participants assigned to active comparator arm concurrent to Arm II. Patients receive mFOLFOX6 regimen consisting of oxaliplatin IV over 2 hours on day 1, leucovorin calcium IV over 2 hours on day 1, and fluorouracil IV continuously over 46-48 hours on days 1-2. Treatment repeats every 2 weeks for 8 cycles in the absence of disease progression or unacceptable toxicity. 3-4 weeks after last does of mFOLFOX6 patient undergo RT and receive capecitabine PO BID Monday-Friday for 5 weeks in the absence of disease progression or unacceptable toxicity.

Capecitabine: Given PO

Fluorouracil: Given IV

Intensity-Modulated Radiation Therapy: Undergo intensity modulated radiation therapy

Leucovorin: Given IV

Oxaliplatin: Given IV

Patients receive mFOLFOX6 regimen consisting of oxaliplatin IV over 2 hours on day 1, leucovorin calcium IV over 2 hours on day 1, and fluorouracil IV continuously over 46-48 hours on days 1-2. Treatment repeats every 2 weeks for up to 8 cycles in the absence of disease progression or unacceptable toxicity. 3-4 weeks after last does of mFOLFOX6 patient undergo RT and receive capecitabine PO BID and veliparib PO BID Monday-Friday for 5 weeks in the absence of disease progression or unacceptable toxicity.

Capecitabine: Given PO

Fluorouracil: Given IV

Intensity-Modulated Radiation Therapy: Undergo intensity modulated radiation therapy

Leucovorin: Given IV

Oxaliplatin: Given IV

Veliparib: Given PO

Participants assigned to active comparator arm concurrent to ARM III. Patients receive mFOLFOX6 regimen consisting of oxaliplatin IV over 2 hours, leucovorin calcium IV over 2 hours on day 1, and fluorouracil IV continuously over 46-48 hours on days 1-2. Treatment repeats every 2 weeks for 8 cycles in the absence of disease progression or unacceptable toxicity. 3-4 weeks after last does of mFOLFOX6 patient undergo RT and receive capecitabine PO BID Monday-Friday for 5 weeks in the absence of disease progression or unacceptable toxicity.

Capecitabine: Given PO

Fluorouracil: Given IV

Intensity-Modulated Radiation Therapy: Undergo intensity modulated radiation therapy

Leucovorin: Given IV

ARM III: Patients receive mFOLFOX6 regimen consisting of oxaliplatin IV over 2 hours, leucovorin calcium IV over 2 hours on day 1, and fluorouracil IV continuously over 46-48 hours on days 1-2. Treatment repeats every 2 weeks for 8 cycles in the absence of disease progression or unacceptable toxicity. 3-4 weeks after last dose of mFOLFOX6 patient undergoes RT and receives capecitabine PO BID Monday-Friday for 5 weeks. They also receive pembrolizumab IV over 30 minutes every 3 weeks beginning on day 1 of RT for up to 6 cycles in the absence of disease progression or unacceptable toxicity.

Capecitabine: Given PO

Fluorouracil: Given IV

Intensity-Modulated Radiation Therapy: Undergo intensity modulated radiation therapy

Leucovorin: Given IV

Oxaliplatin: Given IV

Pembrolizumab:Given IV

Overall Number of Participants Analyzed 74 71 68 69
Mean (95% Confidence Interval)
Unit of Measure: percentage of participants
21.6
(12.9 to 32.7)
33.8
(23.0 to 46.0)
29.4
(19.0 to 41.7)
31.9
(21.2 to 44.2)
5.Secondary Outcome
Title Rate of Sphincter Preservation
Hide Description Sphincter preservation means that the surgical procedure used to remove the tumor did not disturb the sphincter muscle. Analyzed by a logistic regression model that controls for the stratification factors (cT-stage and cN-stage). Observed proportions along with confidence intervals will be presented by treatment.
Time Frame Up to 3 years
Hide Outcome Measure Data
Hide Analysis Population Description
[Not Specified]
Arm/Group Title Arm Ia (mFOLFOX6, RT, Capecitabine) Arm II (mFOLFOX6, RT, Capecitabine, Veliparib) Arm Ib (mFOLFOX6, RT, Capecitabine, Pembrolizumab) Arm III (mFOLFOX6, RT, Capecitabine, Pembrolizumab)
Hide Arm/Group Description:
Arm Ia (mFOLFOX6, RT, capecitabine)
Arm II (mFOLFOX6, RT, capecitabine, veliparib)
Arm Ib (mFOLFOX6, RT, capecitabine)
Arm III (mFOLFOX6, RT, capecitabine, pembrolizumab)
Overall Number of Participants Analyzed 80 81 69 69
Mean (95% Confidence Interval)
Unit of Measure: percentage of participants
52.5
(41.0 to 63.8)
59.3
(47.8 to 70.1)
71.0
(58.8 to 81.3)
59.4
(46.9 to 71.1)
6.Other Pre-specified Outcome
Title Proportion of Patients Who Have a Tumor Resection Overall (and Conditional on Beginning Induction Chemotherapy, and Conditional on Beginning Chemoradiotherapy)
Hide Description Analyzed by a logistic regression model that controls for the stratification factors (cT-stage and cN-stage). Observed proportions along with confidence intervals will be presented by treatment.
Time Frame Up to 3 years
Outcome Measure Data Not Reported
7.Other Pre-specified Outcome
Title Time From Initiation of Chemoradiotherapy to Surgery in the Subset of Patients With Tumor Resection
Hide Description Analyzed using the stratified log rank test with strata cT-stage and cN-stage. Kaplan-Meier plots will illustrate the distribution of time to surgery (TTS) by treatment. Cox regression models will be used to estimate hazard ratios and associated confidence intervals.
Time Frame Up to 3 years
Outcome Measure Data Not Reported
8.Other Pre-specified Outcome
Title Rate of Disease Progression During Chemotherapy (Prior to Chemoradiation)
Hide Description Analyzed by a logistic regression model that controls for the stratification factors (cT-stage and cN-stage). Observed proportions along with confidence intervals will be presented by treatment.
Time Frame Up to 3 years
Outcome Measure Data Not Reported
9.Other Pre-specified Outcome
Title Rate of Clinical Complete Response Rate, ycT0
Hide Description Analyzed by a logistic regression model that controls for the stratification factors (cT-stage and cN-stage). Observed proportions along with confidence intervals will be presented by treatment.
Time Frame Up to 3 years
Outcome Measure Data Not Reported
10.Other Pre-specified Outcome
Title Rate of Negative Circumferential Margin
Hide Description Analyzed by a logistic regression model that controls for the stratification factors (cT-stage and cN-stage). Observed proportions along with confidence intervals will be presented by treatment.
Time Frame Up to 3 years
Outcome Measure Data Not Reported
11.Other Pre-specified Outcome
Title Rate of Completion of All Cycles of Neoadjuvant Chemotherapy
Hide Description Analyzed by a logistic regression model that controls for the stratification factors (cT-stage and cN-stage). Observed proportions along with confidence intervals will be presented by treatment.
Time Frame Up to 3 years
Outcome Measure Data Not Reported
12.Other Pre-specified Outcome
Title Rate of Completion of Full Course of Chemoradiation
Hide Description Analyzed by a logistic regression model that controls for the stratification factors (cT-stage and cN-stage). Observed proportions along with confidence intervals will be presented by treatment.
Time Frame Up to 3 years
Outcome Measure Data Not Reported
13.Other Pre-specified Outcome
Title Incidence of Toxicity Including Patient-reported Toxicities
Hide Description Will be assessed using Common Terminology for Adverse Events (CTCAE) version 4.0 (CTCAE version 5.0 beginning April 1, 2018).
Time Frame 30 days after last study treatment
Outcome Measure Data Not Reported
14.Other Pre-specified Outcome
Title Correlative Molecular Predictors of Response and Distant Failure
Hide Description Cox regression models will be used to evaluate markers for time-to-event variables. Logistic regression models will be used for binary variables. Models will control for stratification factors and possibly other prognostic variables (e.g. gender or treatment).
Time Frame Up to 3 years
Outcome Measure Data Not Reported
15.Other Pre-specified Outcome
Title Relationship Between Radiographic Findings and Pathologic Outcomes
Hide Description Will explore the relationship between radiographic findings and pathologic outcomes.
Time Frame Up to 3 years
Outcome Measure Data Not Reported
Time Frame From study entry to surgery, about 7 months.
Adverse Event Reporting Description Participants at Risk includes any patient who submitted an AE form. Not all participants returned Adverse Event forms; therefore, the Number of Participants At Risk differs between All-Cause Mortality and Serious/Other Adverse Events.
 
Arm/Group Title Arm Ia (mFOLFOX6, RT, Capecitabine) Arm II (mFOLFOX6, RT, Capecitabine, Veliparib) Arm Ib (mFOLFOX6, RT, Capecitabine) Arm III (mFOLFOX6, RT, Capecitabine, Pembrolizumab)
Hide Arm/Group Description Arm Ia (mFOLFOX6, RT, capecitabine) Arm II (mFOLFOX6, RT, capecitabine, veliparib) Arm Ib (mFOLFOX6, RT, capecitabine) Arm Ib (mFOLFOX6, RT, capecitabine, pembrolizumab)
All-Cause Mortality
Arm Ia (mFOLFOX6, RT, Capecitabine) Arm II (mFOLFOX6, RT, Capecitabine, Veliparib) Arm Ib (mFOLFOX6, RT, Capecitabine) Arm III (mFOLFOX6, RT, Capecitabine, Pembrolizumab)
Affected / at Risk (%) Affected / at Risk (%) Affected / at Risk (%) Affected / at Risk (%)
Total   7/87 (8.05%)   14/90 (15.56%)   13/93 (13.98%)   6/87 (6.90%) 
Hide Serious Adverse Events
Arm Ia (mFOLFOX6, RT, Capecitabine) Arm II (mFOLFOX6, RT, Capecitabine, Veliparib) Arm Ib (mFOLFOX6, RT, Capecitabine) Arm III (mFOLFOX6, RT, Capecitabine, Pembrolizumab)
Affected / at Risk (%) Affected / at Risk (%) Affected / at Risk (%) Affected / at Risk (%)
Total   16/83 (19.28%)   25/88 (28.41%)   21/84 (25.00%)   15/82 (18.29%) 
Blood and lymphatic system disorders         
Anemia  1  1/83 (1.20%)  0/88 (0.00%)  0/84 (0.00%)  0/82 (0.00%) 
Febrile neutropenia  1  1/83 (1.20%)  1/88 (1.14%)  2/84 (2.38%)  0/82 (0.00%) 
Cardiac disorders         
Atrial fibrillation  1  0/83 (0.00%)  1/88 (1.14%)  0/84 (0.00%)  0/82 (0.00%) 
Cardiac arrest  1  0/83 (0.00%)  1/88 (1.14%)  0/84 (0.00%)  0/82 (0.00%) 
Myocardial infarction  1  0/83 (0.00%)  0/88 (0.00%)  1/84 (1.19%)  0/82 (0.00%) 
Sinus tachycardia  1  0/83 (0.00%)  0/88 (0.00%)  1/84 (1.19%)  0/82 (0.00%) 
Supraventricular tachycardia  1  0/83 (0.00%)  0/88 (0.00%)  1/84 (1.19%)  0/82 (0.00%) 
Endocrine disorders         
Hypothyroidism  1  0/83 (0.00%)  0/88 (0.00%)  1/84 (1.19%)  0/82 (0.00%) 
Gastrointestinal disorders         
Abdominal pain  1  1/83 (1.20%)  2/88 (2.27%)  0/84 (0.00%)  1/82 (1.22%) 
Colitis  1  1/83 (1.20%)  0/88 (0.00%)  0/84 (0.00%)  1/82 (1.22%) 
Colonic obstruction  1  1/83 (1.20%)  3/88 (3.41%)  1/84 (1.19%)  1/82 (1.22%) 
Colonic perforation  1  0/83 (0.00%)  0/88 (0.00%)  0/84 (0.00%)  1/82 (1.22%) 
Constipation  1  0/83 (0.00%)  1/88 (1.14%)  0/84 (0.00%)  0/82 (0.00%) 
Diarrhea  1  0/83 (0.00%)  7/88 (7.95%)  1/84 (1.19%)  1/82 (1.22%) 
Dyspepsia  1  1/83 (1.20%)  0/88 (0.00%)  0/84 (0.00%)  0/82 (0.00%) 
Enterocolitis  1  0/83 (0.00%)  2/88 (2.27%)  1/84 (1.19%)  1/82 (1.22%) 
Ileus  1  1/83 (1.20%)  0/88 (0.00%)  3/84 (3.57%)  0/82 (0.00%) 
Nausea  1  0/83 (0.00%)  1/88 (1.14%)  1/84 (1.19%)  1/82 (1.22%) 
Rectal fistula  1  0/83 (0.00%)  0/88 (0.00%)  0/84 (0.00%)  1/82 (1.22%) 
Rectal hemorrhage  1  1/83 (1.20%)  0/88 (0.00%)  0/84 (0.00%)  0/82 (0.00%) 
Rectal pain  1  0/83 (0.00%)  2/88 (2.27%)  0/84 (0.00%)  1/82 (1.22%) 
Small intestinal obstruction  1  0/83 (0.00%)  1/88 (1.14%)  1/84 (1.19%)  0/82 (0.00%) 
Vomiting  1  0/83 (0.00%)  1/88 (1.14%)  2/84 (2.38%)  1/82 (1.22%) 
Lower gastrointestinal hemorrhage  1  1/83 (1.20%)  0/88 (0.00%)  0/84 (0.00%)  0/82 (0.00%) 
Rectal obstruction  1  0/83 (0.00%)  0/88 (0.00%)  0/84 (0.00%)  1/82 (1.22%) 
General disorders         
Fatigue  1  1/83 (1.20%)  0/88 (0.00%)  0/84 (0.00%)  0/82 (0.00%) 
Fever  1  0/83 (0.00%)  1/88 (1.14%)  0/84 (0.00%)  1/82 (1.22%) 
Non-cardiac chest pain  1  1/83 (1.20%)  0/88 (0.00%)  0/84 (0.00%)  0/82 (0.00%) 
Immune system disorders         
Anaphylaxis  1  1/83 (1.20%)  0/88 (0.00%)  0/84 (0.00%)  1/82 (1.22%) 
Infections and infestations         
Catheter related infection  1  0/83 (0.00%)  0/88 (0.00%)  1/84 (1.19%)  0/82 (0.00%) 
Infections and infestations - Other, specify  1  1/83 (1.20%)  0/88 (0.00%)  1/84 (1.19%)  0/82 (0.00%) 
Sepsis  1  0/83 (0.00%)  1/88 (1.14%)  1/84 (1.19%)  3/82 (3.66%) 
Skin infection  1  0/83 (0.00%)  1/88 (1.14%)  0/84 (0.00%)  1/82 (1.22%) 
Urinary tract infection  1  0/83 (0.00%)  2/88 (2.27%)  0/84 (0.00%)  1/82 (1.22%) 
Pelvic infection  1  0/83 (0.00%)  1/88 (1.14%)  1/84 (1.19%)  0/82 (0.00%) 
Enterocolitis infectious  1  1/83 (1.20%)  2/88 (2.27%)  0/84 (0.00%)  1/82 (1.22%) 
Lung infection  1  0/83 (0.00%)  1/88 (1.14%)  4/84 (4.76%)  0/82 (0.00%) 
Anorectal infection  1  1/83 (1.20%)  1/88 (1.14%)  2/84 (2.38%)  0/82 (0.00%) 
Small intestine infection  1  0/83 (0.00%)  0/88 (0.00%)  1/84 (1.19%)  0/82 (0.00%) 
Injury, poisoning and procedural complications         
Hip fracture  1  0/83 (0.00%)  0/88 (0.00%)  1/84 (1.19%)  0/82 (0.00%) 
Wound dehiscence  1  0/83 (0.00%)  0/88 (0.00%)  0/84 (0.00%)  1/82 (1.22%) 
Infusion related reaction  1  1/83 (1.20%)  0/88 (0.00%)  1/84 (1.19%)  0/82 (0.00%) 
Dermatitis radiation  1  0/83 (0.00%)  1/88 (1.14%)  0/84 (0.00%)  0/82 (0.00%) 
Rectal anastomotic leak  1  0/83 (0.00%)  1/88 (1.14%)  0/84 (0.00%)  0/82 (0.00%) 
Investigations         
Activated partial thromboplastin time prolonged  1  0/83 (0.00%)  0/88 (0.00%)  0/84 (0.00%)  1/82 (1.22%) 
Alanine aminotransferase increased  1  0/83 (0.00%)  1/88 (1.14%)  0/84 (0.00%)  0/82 (0.00%) 
Aspartate aminotransferase increased  1  0/83 (0.00%)  1/88 (1.14%)  0/84 (0.00%)  0/82 (0.00%) 
Platelet count decreased  1  0/83 (0.00%)  0/88 (0.00%)  0/84 (0.00%)  1/82 (1.22%) 
Metabolism and nutrition disorders         
Anorexia  1  0/83 (0.00%)  1/88 (1.14%)  0/84 (0.00%)  0/82 (0.00%) 
Dehydration  1  1/83 (1.20%)  4/88 (4.55%)  1/84 (1.19%)  0/82 (0.00%) 
Hyperglycemia  1  0/83 (0.00%)  0/88 (0.00%)  2/84 (2.38%)  0/82 (0.00%) 
Hypocalcemia  1  0/83 (0.00%)  1/88 (1.14%)  0/84 (0.00%)  0/82 (0.00%) 
Hypokalemia  1  0/83 (0.00%)  6/88 (6.82%)  1/84 (1.19%)  2/82 (2.44%) 
Hyponatremia  1  0/83 (0.00%)  0/88 (0.00%)  1/84 (1.19%)  2/82 (2.44%) 
Hypophosphatemia  1  0/83 (0.00%)  2/88 (2.27%)  1/84 (1.19%)  0/82 (0.00%) 
Metabolism and nutrition disorders - Other, specify  1  1/83 (1.20%)  0/88 (0.00%)  0/84 (0.00%)  0/82 (0.00%) 
Musculoskeletal and connective tissue disorders         
Chest wall pain  1  0/83 (0.00%)  1/88 (1.14%)  0/84 (0.00%)  0/82 (0.00%) 
Muscle weakness lower limb  1  1/83 (1.20%)  0/88 (0.00%)  0/84 (0.00%)  0/82 (0.00%) 
Nervous system disorders         
Encephalopathy  1  0/83 (0.00%)  0/88 (0.00%)  0/84 (0.00%)  1/82 (1.22%) 
Intracranial hemorrhage  1  0/83 (0.00%)  0/88 (0.00%)  0/84 (0.00%)  0/82 (0.00%) 
Peripheral sensory neuropathy  1  0/83 (0.00%)  0/88 (0.00%)  0/84 (0.00%)  0/82 (0.00%) 
Seizure  1  0/83 (0.00%)  0/88 (0.00%)  0/84 (0.00%)  0/82 (0.00%) 
Stroke  1  1/83 (1.20%)  0/88 (0.00%)  0/84 (0.00%)  0/82 (0.00%) 
Syncope  1  1/83 (1.20%)  2/88 (2.27%)  0/84 (0.00%)  0/82 (0.00%) 
Psychiatric disorders         
Anxiety  1  0/83 (0.00%)  1/88 (1.14%)  0/84 (0.00%)  0/82 (0.00%) 
Delusions  1  0/83 (0.00%)  0/88 (0.00%)  1/84 (1.19%)  0/82 (0.00%) 
Suicide attempt  1  0/83 (0.00%)  0/88 (0.00%)  1/84 (1.19%)  0/82 (0.00%) 
Renal and urinary disorders         
Renal calculi  1  0/83 (0.00%)  0/88 (0.00%)  1/84 (1.19%)  0/82 (0.00%) 
Urinary tract obstruction  1  1/83 (1.20%)  0/88 (0.00%)  0/84 (0.00%)  0/82 (0.00%) 
Acute kidney injury  1  1/83 (1.20%)  1/88 (1.14%)  0/84 (0.00%)  1/82 (1.22%) 
Respiratory, thoracic and mediastinal disorders         
Aspiration  1  0/83 (0.00%)  1/88 (1.14%)  0/84 (0.00%)  0/82 (0.00%) 
Dyspnea  1  0/83 (0.00%)  0/88 (0.00%)  1/84 (1.19%)  0/82 (0.00%) 
Hypoxia  1  1/83 (1.20%)  1/88 (1.14%)  0/84 (0.00%)  0/82 (0.00%) 
Pneumothorax  1  1/83 (1.20%)  0/88 (0.00%)  0/84 (0.00%)  0/82 (0.00%) 
Respiratory failure  1  0/83 (0.00%)  1/88 (1.14%)  0/84 (0.00%)  0/82 (0.00%) 
Laryngopharyngeal dysesthesia  1  1/83 (1.20%)  0/88 (0.00%)  0/84 (0.00%)  0/82 (0.00%) 
Skin and subcutaneous tissue disorders         
Skin ulceration  1  0/83 (0.00%)  1/88 (1.14%)  0/84 (0.00%)  0/82 (0.00%) 
Vascular disorders         
Hypertension  1  0/83 (0.00%)  1/88 (1.14%)  0/84 (0.00%)  0/82 (0.00%) 
Hypotension  1  1/83 (1.20%)  1/88 (1.14%)  0/84 (0.00%)  0/82 (0.00%) 
Superior vena cava syndrome  1  1/83 (1.20%)  0/88 (0.00%)  0/84 (0.00%)  0/82 (0.00%) 
Thromboembolic event  1  3/83 (3.61%)  1/88 (1.14%)  3/84 (3.57%)  2/82 (2.44%) 
1
Term from vocabulary, CTCAE v5.0
Indicates events were collected by systematic assessment
Hide Other (Not Including Serious) Adverse Events
Frequency Threshold for Reporting Other Adverse Events 5%
Arm Ia (mFOLFOX6, RT, Capecitabine) Arm II (mFOLFOX6, RT, Capecitabine, Veliparib) Arm Ib (mFOLFOX6, RT, Capecitabine) Arm III (mFOLFOX6, RT, Capecitabine, Pembrolizumab)
Affected / at Risk (%) Affected / at Risk (%) Affected / at Risk (%) Affected / at Risk (%)
Total   83/83 (100.00%)   86/88 (97.73%)   82/84 (97.62%)   81/82 (98.78%) 
Blood and lymphatic system disorders         
Anemia  1  11/83 (13.25%)  18/88 (20.45%)  13/84 (15.48%)  14/82 (17.07%) 
Endocrine disorders         
Hyperthyroidism  1  0/83 (0.00%)  0/88 (0.00%)  6/84 (7.14%)  0/82 (0.00%) 
Hypothyroidism  1  0/83 (0.00%)  0/88 (0.00%)  9/84 (10.71%)  1/82 (1.22%) 
Gastrointestinal disorders         
Abdominal pain  1  10/83 (12.05%)  21/88 (23.86%)  7/84 (8.33%)  6/82 (7.32%) 
Anal pain  1  12/83 (14.46%)  19/88 (21.59%)  2/84 (2.38%)  6/82 (7.32%) 
Constipation  1  13/83 (15.66%)  13/88 (14.77%)  13/84 (15.48%)  10/82 (12.20%) 
Diarrhea  1  30/83 (36.14%)  43/88 (48.86%)  29/84 (34.52%)  25/82 (30.49%) 
Gastrointestinal disorders - Other, specify  1  3/83 (3.61%)  5/88 (5.68%)  0/84 (0.00%)  3/82 (3.66%) 
Mucositis oral  1  10/83 (12.05%)  11/88 (12.50%)  4/84 (4.76%)  7/82 (8.54%) 
Nausea  1  21/83 (25.30%)  34/88 (38.64%)  24/84 (28.57%)  19/82 (23.17%) 
Proctitis  1  6/83 (7.23%)  8/88 (9.09%)  6/84 (7.14%)  7/82 (8.54%) 
Rectal pain  1  7/83 (8.43%)  13/88 (14.77%)  16/84 (19.05%)  12/82 (14.63%) 
Vomiting  1  8/83 (9.64%)  14/88 (15.91%)  13/84 (15.48%)  3/82 (3.66%) 
Rectal mucositis  1  4/83 (4.82%)  8/88 (9.09%)  0/84 (0.00%)  1/82 (1.22%) 
Gastroesophageal reflux disease  1  3/83 (3.61%)  3/88 (3.41%)  6/84 (7.14%)  3/82 (3.66%) 
General disorders         
Fatigue  1  26/83 (31.33%)  46/88 (52.27%)  33/84 (39.29%)  32/82 (39.02%) 
Pain  1  5/83 (6.02%)  2/88 (2.27%)  6/84 (7.14%)  4/82 (4.88%) 
Infections and infestations         
Infections and infestations - Other, specify  1  3/83 (3.61%)  1/88 (1.14%)  5/84 (5.95%)  4/82 (4.88%) 
Urinary tract infection  1  3/83 (3.61%)  5/88 (5.68%)  7/84 (8.33%)  6/82 (7.32%) 
Injury, poisoning and procedural complications         
Infusion related reaction  1  3/83 (3.61%)  3/88 (3.41%)  10/84 (11.90%)  4/82 (4.88%) 
Dermatitis radiation  1  14/83 (16.87%)  18/88 (20.45%)  12/84 (14.29%)  13/82 (15.85%) 
Investigations         
Alanine aminotransferase increased  1  2/83 (2.41%)  5/88 (5.68%)  10/84 (11.90%)  8/82 (9.76%) 
Aspartate aminotransferase increased  1  3/83 (3.61%)  3/88 (3.41%)  5/84 (5.95%)  8/82 (9.76%) 
Lymphocyte count decreased  1  35/83 (42.17%)  37/88 (42.05%)  36/84 (42.86%)  25/82 (30.49%) 
Neutrophil count decreased  1  36/83 (43.37%)  50/88 (56.82%)  40/84 (47.62%)  34/82 (41.46%) 
Platelet count decreased  1  10/83 (12.05%)  15/88 (17.05%)  21/84 (25.00%)  15/82 (18.29%) 
Weight loss  1  3/83 (3.61%)  11/88 (12.50%)  6/84 (7.14%)  5/82 (6.10%) 
White blood cell decreased  1  11/83 (13.25%)  28/88 (31.82%)  22/84 (26.19%)  23/82 (28.05%) 
Metabolism and nutrition disorders         
Anorexia  1  12/83 (14.46%)  24/88 (27.27%)  15/84 (17.86%)  4/82 (4.88%) 
Dehydration  1  9/83 (10.84%)  21/88 (23.86%)  12/84 (14.29%)  5/82 (6.10%) 
Hyperglycemia  1  9/83 (10.84%)  8/88 (9.09%)  5/84 (5.95%)  2/82 (2.44%) 
Hypoalbuminemia  1  4/83 (4.82%)  8/88 (9.09%)  6/84 (7.14%)  5/82 (6.10%) 
Hypocalcemia  1  1/83 (1.20%)  5/88 (5.68%)  4/84 (4.76%)  3/82 (3.66%) 
Hypokalemia  1  7/83 (8.43%)  10/88 (11.36%)  7/84 (8.33%)  11/82 (13.41%) 
Musculoskeletal and connective tissue disorders         
Arthralgia  1  1/83 (1.20%)  1/88 (1.14%)  7/84 (8.33%)  2/82 (2.44%) 
Back pain  1  2/83 (2.41%)  6/88 (6.82%)  7/84 (8.33%)  0/82 (0.00%) 
Pain in extremity  1  2/83 (2.41%)  1/88 (1.14%)  3/84 (3.57%)  5/82 (6.10%) 
Nervous system disorders         
Dysgeusia  1  3/83 (3.61%)  7/88 (7.95%)  3/84 (3.57%)  2/82 (2.44%) 
Paresthesia  1  3/83 (3.61%)  8/88 (9.09%)  6/84 (7.14%)  1/82 (1.22%) 
Peripheral motor neuropathy  1  2/83 (2.41%)  5/88 (5.68%)  2/84 (2.38%)  1/82 (1.22%) 
Peripheral sensory neuropathy  1  18/83 (21.69%)  21/88 (23.86%)  25/84 (29.76%)  26/82 (31.71%) 
Psychiatric disorders         
Anxiety  1  3/83 (3.61%)  8/88 (9.09%)  6/84 (7.14%)  4/82 (4.88%) 
Depression  1  2/83 (2.41%)  5/88 (5.68%)  1/84 (1.19%)  4/82 (4.88%) 
Insomnia  1  5/83 (6.02%)  3/88 (3.41%)  5/84 (5.95%)  3/82 (3.66%) 
Respiratory, thoracic and mediastinal disorders         
Dyspnea  1  2/83 (2.41%)  2/88 (2.27%)  8/84 (9.52%)  3/82 (3.66%) 
Skin and subcutaneous tissue disorders         
Rash maculo-papular  1  2/83 (2.41%)  3/88 (3.41%)  5/84 (5.95%)  3/82 (3.66%) 
Palmar-plantar erythrodysesthesia syndrome  1  5/83 (6.02%)  4/88 (4.55%)  4/84 (4.76%)  4/82 (4.88%) 
Vascular disorders         
Hypertension  1  24/83 (28.92%)  16/88 (18.18%)  19/84 (22.62%)  24/82 (29.27%) 
Hypotension  1  7/83 (8.43%)  5/88 (5.68%)  1/84 (1.19%)  3/82 (3.66%) 
Thromboembolic event  1  10/83 (12.05%)  4/88 (4.55%)  7/84 (8.33%)  6/82 (7.32%) 
1
Term from vocabulary, CTCAE v5.0
Indicates events were collected by systematic assessment
Certain Agreements
Principal Investigators are NOT employed by the organization sponsoring the study.
There IS an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.
Results Point of Contact
Layout table for Results Point of Contact information
Name/Title: Director, Department of Regulatory Affairs
Organization: NRG Oncology
Phone: 412-339-5261
EMail: langerj@nrgoncology.org
Layout table for additonal information
Responsible Party: National Cancer Institute (NCI)
ClinicalTrials.gov Identifier: NCT02921256    
Other Study ID Numbers: NCI-2016-00222
NCI-2016-00222 ( Registry Identifier: CTRP (Clinical Trial Reporting Program) )
NRG-GI002
s17-00197
NRG-GI002 ( Other Identifier: NRG Oncology )
NRG-GI002 ( Other Identifier: CTEP )
U10CA180868 ( U.S. NIH Grant/Contract )
First Submitted: September 30, 2016
First Posted: October 3, 2016
Results First Submitted: March 8, 2023
Results First Posted: June 9, 2023
Last Update Posted: April 24, 2024