Trial Outcomes & Findings for Pembrolizumab in Treating Patients With Small Bowel Adenocarcinoma That is Metastatic or Locally Advanced and Cannot Be Removed by Surgery (NCT NCT02949219)

NCT ID: NCT02949219

Last Updated: 2024-08-22

Results Overview

The response rate (percentage) is the percent of patients whose best response was Complete Response (CR) or Partial Response (PR) as defined by RECIST 1.1 criteria. Percentage of successes will be estimated by 100 times the number of successes divided by the total number of evaluable patients.

Recruitment status

ACTIVE_NOT_RECRUITING

Study phase

PHASE2

Target enrollment

41 participants

Primary outcome timeframe

1 year (up to 18 cycles)

Results posted on

2024-08-22

Participant Flow

Participant milestones

Participant milestones
Measure
Treatment (Pembrolizumab)
Patients receive 200 mg pembrolizumab IV over 30 minutes on day 1. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity.
Overall Study
STARTED
41
Overall Study
COMPLETED
40
Overall Study
NOT COMPLETED
1

Reasons for withdrawal

Reasons for withdrawal
Measure
Treatment (Pembrolizumab)
Patients receive 200 mg pembrolizumab IV over 30 minutes on day 1. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity.
Overall Study
Withdrawal by Subject
1

Baseline Characteristics

Pembrolizumab in Treating Patients With Small Bowel Adenocarcinoma That is Metastatic or Locally Advanced and Cannot Be Removed by Surgery

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Treatment (Pembrolizumab)
n=40 Participants
Patients receive 200 mg pembrolizumab IV over 30 minutes on day 1. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity.
Age, Continuous
61.6 years
STANDARD_DEVIATION 13.16 • n=39 Participants
Sex: Female, Male
Female
16 Participants
n=39 Participants
Sex: Female, Male
Male
24 Participants
n=39 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=39 Participants
Race (NIH/OMB)
Asian
0 Participants
n=39 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=39 Participants
Race (NIH/OMB)
Black or African American
7 Participants
n=39 Participants
Race (NIH/OMB)
White
30 Participants
n=39 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=39 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants
n=39 Participants
ECOG Performance Status
0
17 Participants
n=39 Participants
ECOG Performance Status
1
23 Participants
n=39 Participants

PRIMARY outcome

Timeframe: 1 year (up to 18 cycles)

The response rate (percentage) is the percent of patients whose best response was Complete Response (CR) or Partial Response (PR) as defined by RECIST 1.1 criteria. Percentage of successes will be estimated by 100 times the number of successes divided by the total number of evaluable patients.

Outcome measures

Outcome measures
Measure
Treatment (Pembrolizumab)
n=40 Participants
Patients receive 200 mg pembrolizumab IV over 30 minutes on day 1. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity.
Overall Confirmed Response Rate
7.5 percentage of participants
Interval 1.6 to 20.4

SECONDARY outcome

Timeframe: From study entry to the first of either disease progression or death from any cause, assessed up to 2 years

Progression free survival (PFS) is defined as the time from the date of randomization to the date of disease progression or death resulting from any cause, whichever comes first. Progression is defined according to Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1. The median and 95% confidence intervals are estimated using the Kaplan-Meier estimator.

Outcome measures

Outcome measures
Measure
Treatment (Pembrolizumab)
n=40 Participants
Patients receive 200 mg pembrolizumab IV over 30 minutes on day 1. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity.
Progression Free Survival
2.8 months
Interval 2.7 to 4.2

SECONDARY outcome

Timeframe: From study entry to death from any cause, assessed up to 2 years

Overall survival time is defined as the time from randomization to death due to any cause. The median and 95% confidence intervals are estimated using the Kaplan-Meier estimator.

Outcome measures

Outcome measures
Measure
Treatment (Pembrolizumab)
n=40 Participants
Patients receive 200 mg pembrolizumab IV over 30 minutes on day 1. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity.
Overall Survival
6.9 months
Interval 5.1 to 17.1

SECONDARY outcome

Timeframe: Up to 2 years

number of participants who experienced at least one grade 3 or higher adverse events regardless of attribution assessed by National Cancer Institute's Common Terminology Criteria for Adverse Events version 4.03

Outcome measures

Outcome measures
Measure
Treatment (Pembrolizumab)
n=40 Participants
Patients receive 200 mg pembrolizumab IV over 30 minutes on day 1. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity.
Number of Participants Who Experienced at Least One Grade 3 or Higher Adverse Events Regardless of Attribution
25 Participants

OTHER_PRE_SPECIFIED outcome

Timeframe: Up to 5 years

Correlated with clinical data (i.e. response, overall survival, progression free survival, adverse events). These correlations will be done using the Chi-square or Fisher?s exact test for categorical data and Kaplan-Meier methods (including the log-rank test) for the survival endpoints. Univariate Cox regression models will also be done to assess for marker effects on survival endpoints. Descriptive statistics and graphical methods will be used to summarize the data as well. All these analyses will be done overall and by MMR/microsatellite instability status.

Outcome measures

Outcome data not reported

Adverse Events

Treatment (Pembrolizumab)

Serious events: 21 serious events
Other events: 34 other events
Deaths: 28 deaths

Serious adverse events

Serious adverse events
Measure
Treatment (Pembrolizumab)
n=40 participants at risk
Patients receive 200 mg pembrolizumab IV over 30 minutes on day 1. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity.
Blood and lymphatic system disorders
Anemia
2.5%
1/40 • Number of events 1 • Up to 2 years
Endocrine disorders
Hypothyroidism
5.0%
2/40 • Number of events 2 • Up to 2 years
Gastrointestinal disorders
Abdominal pain
2.5%
1/40 • Number of events 2 • Up to 2 years
Gastrointestinal disorders
Gastrointestinal disorders - Oth spec
2.5%
1/40 • Number of events 1 • Up to 2 years
Gastrointestinal disorders
Pancreatitis
2.5%
1/40 • Number of events 2 • Up to 2 years
Gastrointestinal disorders
Small intestinal obstruction
5.0%
2/40 • Number of events 3 • Up to 2 years
General disorders
Fever
2.5%
1/40 • Number of events 1 • Up to 2 years
Hepatobiliary disorders
Cholecystitis
2.5%
1/40 • Number of events 1 • Up to 2 years
Hepatobiliary disorders
Gallbladder obstruction
2.5%
1/40 • Number of events 1 • Up to 2 years
Hepatobiliary disorders
Hepatic failure
2.5%
1/40 • Number of events 1 • Up to 2 years
Hepatobiliary disorders
Hepatobiliary disorders - Other, specify
2.5%
1/40 • Number of events 1 • Up to 2 years
Infections and infestations
Lung infection
5.0%
2/40 • Number of events 2 • Up to 2 years
Infections and infestations
Sepsis
7.5%
3/40 • Number of events 5 • Up to 2 years
Infections and infestations
Urinary tract infection
2.5%
1/40 • Number of events 1 • Up to 2 years
Injury, poisoning and procedural complications
Fall
2.5%
1/40 • Number of events 1 • Up to 2 years
Investigations
Alanine aminotransferase increased
5.0%
2/40 • Number of events 2 • Up to 2 years
Investigations
Alkaline phosphatase increased
7.5%
3/40 • Number of events 3 • Up to 2 years
Investigations
Aspartate aminotransferase increased
12.5%
5/40 • Number of events 6 • Up to 2 years
Investigations
Blood bilirubin increased
2.5%
1/40 • Number of events 1 • Up to 2 years
Investigations
Neutrophil count decreased
2.5%
1/40 • Number of events 1 • Up to 2 years
Metabolism and nutrition disorders
Hypoglycemia
2.5%
1/40 • Number of events 1 • Up to 2 years
Musculoskeletal and connective tissue disorders
Musculoskeletal, conn tissue - Oth spec
2.5%
1/40 • Number of events 1 • Up to 2 years
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Neoplasms benign, mal, uncpec - Oth spec
7.5%
3/40 • Number of events 3 • Up to 2 years
Nervous system disorders
Nervous system disorders - Oth spec
2.5%
1/40 • Number of events 1 • Up to 2 years
Nervous system disorders
Stroke
5.0%
2/40 • Number of events 2 • Up to 2 years
Respiratory, thoracic and mediastinal disorders
Aspiration
5.0%
2/40 • Number of events 3 • Up to 2 years
Respiratory, thoracic and mediastinal disorders
Cough
2.5%
1/40 • Number of events 1 • Up to 2 years
Respiratory, thoracic and mediastinal disorders
Pneumonitis
5.0%
2/40 • Number of events 2 • Up to 2 years
Respiratory, thoracic and mediastinal disorders
Respiratory failure
2.5%
1/40 • Number of events 1 • Up to 2 years
Vascular disorders
Thromboembolic event
2.5%
1/40 • Number of events 1 • Up to 2 years

Other adverse events

Other adverse events
Measure
Treatment (Pembrolizumab)
n=40 participants at risk
Patients receive 200 mg pembrolizumab IV over 30 minutes on day 1. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity.
Blood and lymphatic system disorders
Anemia
5.0%
2/40 • Number of events 4 • Up to 2 years
Endocrine disorders
Endocrine disorders - Other, specify
2.5%
1/40 • Number of events 3 • Up to 2 years
Endocrine disorders
Hyperthyroidism
15.0%
6/40 • Number of events 10 • Up to 2 years
Endocrine disorders
Hypothyroidism
27.5%
11/40 • Number of events 45 • Up to 2 years
Gastrointestinal disorders
Abdominal distension
2.5%
1/40 • Number of events 2 • Up to 2 years
Gastrointestinal disorders
Abdominal pain
7.5%
3/40 • Number of events 7 • Up to 2 years
Gastrointestinal disorders
Ascites
2.5%
1/40 • Number of events 1 • Up to 2 years
Gastrointestinal disorders
Constipation
2.5%
1/40 • Number of events 2 • Up to 2 years
Gastrointestinal disorders
Dysphagia
2.5%
1/40 • Number of events 1 • Up to 2 years
Gastrointestinal disorders
Nausea
2.5%
1/40 • Number of events 1 • Up to 2 years
General disorders
Fatigue
7.5%
3/40 • Number of events 7 • Up to 2 years
General disorders
Localized edema
2.5%
1/40 • Number of events 9 • Up to 2 years
Infections and infestations
Infections and infestations - Oth spec
2.5%
1/40 • Number of events 2 • Up to 2 years
Infections and infestations
Papulopustular rash
5.0%
2/40 • Number of events 2 • Up to 2 years
Infections and infestations
Sepsis
2.5%
1/40 • Number of events 1 • Up to 2 years
Injury, poisoning and procedural complications
Fall
2.5%
1/40 • Number of events 1 • Up to 2 years
Investigations
Alanine aminotransferase increased
27.5%
11/40 • Number of events 33 • Up to 2 years
Investigations
Alkaline phosphatase increased
70.0%
28/40 • Number of events 97 • Up to 2 years
Investigations
Aspartate aminotransferase increased
50.0%
20/40 • Number of events 39 • Up to 2 years
Investigations
Blood bilirubin increased
17.5%
7/40 • Number of events 10 • Up to 2 years
Investigations
Lymphocyte count decreased
2.5%
1/40 • Number of events 3 • Up to 2 years
Investigations
Weight loss
2.5%
1/40 • Number of events 1 • Up to 2 years
Metabolism and nutrition disorders
Anorexia
2.5%
1/40 • Number of events 4 • Up to 2 years
Metabolism and nutrition disorders
Hyperuricemia
2.5%
1/40 • Number of events 6 • Up to 2 years
Metabolism and nutrition disorders
Hypokalemia
2.5%
1/40 • Number of events 2 • Up to 2 years
Metabolism and nutrition disorders
Hyponatremia
2.5%
1/40 • Number of events 1 • Up to 2 years
Musculoskeletal and connective tissue disorders
Arthralgia
2.5%
1/40 • Number of events 11 • Up to 2 years
Musculoskeletal and connective tissue disorders
Arthritis
2.5%
1/40 • Number of events 1 • Up to 2 years
Musculoskeletal and connective tissue disorders
Generalized muscle weakness
5.0%
2/40 • Number of events 6 • Up to 2 years
Musculoskeletal and connective tissue disorders
Joint range of motion decreased
2.5%
1/40 • Number of events 1 • Up to 2 years
Nervous system disorders
Dysesthesia
2.5%
1/40 • Number of events 1 • Up to 2 years
Nervous system disorders
Encephalopathy
2.5%
1/40 • Number of events 1 • Up to 2 years
Respiratory, thoracic and mediastinal disorders
Dyspnea
2.5%
1/40 • Number of events 1 • Up to 2 years
Skin and subcutaneous tissue disorders
Pruritus
5.0%
2/40 • Number of events 4 • Up to 2 years
Skin and subcutaneous tissue disorders
Rash maculo-papular
7.5%
3/40 • Number of events 4 • Up to 2 years
Skin and subcutaneous tissue disorders
Skin and subcut tissue disord - Oth spec
2.5%
1/40 • Number of events 1 • Up to 2 years

Additional Information

Robert R. McWilliams, M.D.

Mayo Clinic

Phone: 507-266-9161

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place