Trial Outcomes & Findings for Immunotherapy With or Without SBRT in Patients With Stage IV Non-small Cell Lung Cancer (NCT NCT03867175)

NCT ID: NCT03867175

Last Updated: 2025-06-13

Results Overview

Will be determined using the product-limit method of Kaplan and Meier. Will compare unadjusted median PFS between the 2 arms using a log-rank test. Will also use a proportional hazards model to compare progression-free survival between the two groups, adjusting for key covariates such as age, performance (Eastern Cooperative Oncology Group) status, response to initial systemic therapy versus (vs) stable disease, the presence or absence of brain metastases, PD-L1 \[programmed death-ligand \] expression (\< 1% vs \> 50%), tumor histology (adenocarcinoma vs non-adenocarcinoma), and number of disease sites treated (1-3 sites vs 4-6 sites). Progression is defined using RECIST v1.1 is relative Increase: A 20% increase in the sum of the longest diameters of target lesions (from baseline or nadir) is a criterion for PD.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

5 participants

Primary outcome timeframe

Up to 5 years

Results posted on

2025-06-13

Participant Flow

Participant milestones

Participant milestones
Measure
Arm 1 Stereotactic Body Radiation Therapy/Pembrolizumab
3-10 treatments of SBRT/ pembrolizumab IV for 30 minutes every 3-4 weeks for 1 year at doctor's discretion.
Arm 2 Pembrolizumab Only
Patients receive pembrolizumab IV over 30 minutes every 3-4 weeks for 1 year at the discretion of the treating physician.
Overall Study
STARTED
4
1
Overall Study
COMPLETED
4
1
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Immunotherapy With or Without SBRT in Patients With Stage IV Non-small Cell Lung Cancer

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Arm 1 Stereotactic Body Radiation Therapy/Pembrolizumab
n=4 Participants
3-10 treatments of SBRT/ pembrolizumab IV for 30 minutes every 3-4 weeks for 1 year at doctor's discretion.
Arm 2 Pembrolizumab Only
n=1 Participants
Patients receive pembrolizumab IV over 30 minutes every 3-4 weeks for 1 year at the discretion of the treating physician.
Total
n=5 Participants
Total of all reporting groups
Age, Continuous
61.5 years
STANDARD_DEVIATION 9.9 • n=93 Participants
53 years
n=4 Participants
59.8 years
STANDARD_DEVIATION 9.4 • n=27 Participants
Sex: Female, Male
Female
1 Participants
n=93 Participants
0 Participants
n=4 Participants
1 Participants
n=27 Participants
Sex: Female, Male
Male
3 Participants
n=93 Participants
1 Participants
n=4 Participants
4 Participants
n=27 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
4 Participants
n=93 Participants
1 Participants
n=4 Participants
5 Participants
n=27 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Race (NIH/OMB)
Asian
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Race (NIH/OMB)
White
4 Participants
n=93 Participants
1 Participants
n=4 Participants
5 Participants
n=27 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants

PRIMARY outcome

Timeframe: Up to 5 years

Will be determined using the product-limit method of Kaplan and Meier. Will compare unadjusted median PFS between the 2 arms using a log-rank test. Will also use a proportional hazards model to compare progression-free survival between the two groups, adjusting for key covariates such as age, performance (Eastern Cooperative Oncology Group) status, response to initial systemic therapy versus (vs) stable disease, the presence or absence of brain metastases, PD-L1 \[programmed death-ligand \] expression (\< 1% vs \> 50%), tumor histology (adenocarcinoma vs non-adenocarcinoma), and number of disease sites treated (1-3 sites vs 4-6 sites). Progression is defined using RECIST v1.1 is relative Increase: A 20% increase in the sum of the longest diameters of target lesions (from baseline or nadir) is a criterion for PD.

Outcome measures

Outcome measures
Measure
Arm 1 Stereotactic Body Radiation Therapy/Pembrolizumab
n=4 Participants
3-10 treatments of SBRT/ pembrolizumab IV for 30 minutes every 3-4 weeks for 1 year at doctor's discretion. There were 4 participants in Arm 1. One person progressed (date of progression, 1/8/2020; date of death 2/18/2020; study start date 6/24/2019). The remaining 3 are censored (no progression, no death) and still alive as of April 23, 2025.
Arm 2 Pembrolizumab Only
n=1 Participants
Patients receive pembrolizumab IV over 30 minutes every 3-4 weeks for 1 year at the discretion of the treating physician. The one participant in this arm is alive and censored (no progression, no death) as of April 23, 2025.
Number of Participants With Progression-free Survival (PFS) After Completion of First Line Standard of Care Systemic Therapy
1 Participants
0 Participants

SECONDARY outcome

Timeframe: Up to 5 years

Overall Survival is defined as the duration from the start of first line standard of care systemic therapy to the date of death or date of last contact; those lost to follow-up will be censored and will be reported with an exact 95% confidence interval.

Outcome measures

Outcome measures
Measure
Arm 1 Stereotactic Body Radiation Therapy/Pembrolizumab
n=4 Participants
3-10 treatments of SBRT/ pembrolizumab IV for 30 minutes every 3-4 weeks for 1 year at doctor's discretion. There were 4 participants in Arm 1. One person progressed (date of progression, 1/8/2020; date of death 2/18/2020; study start date 6/24/2019). The remaining 3 are censored (no progression, no death) and still alive as of April 23, 2025.
Arm 2 Pembrolizumab Only
n=1 Participants
Patients receive pembrolizumab IV over 30 minutes every 3-4 weeks for 1 year at the discretion of the treating physician. The one participant in this arm is alive and censored (no progression, no death) as of April 23, 2025.
Number of Participants With Overall Survival
1 Participants
0 Participants

SECONDARY outcome

Timeframe: Baseline up to 5 years

In patients not receiving radiation, the investigators will assess progression at their known sites of disease prior to beginning first line systemic chemotherapy.

Outcome measures

Outcome measures
Measure
Arm 1 Stereotactic Body Radiation Therapy/Pembrolizumab
n=4 Participants
3-10 treatments of SBRT/ pembrolizumab IV for 30 minutes every 3-4 weeks for 1 year at doctor's discretion. There were 4 participants in Arm 1. One person progressed (date of progression, 1/8/2020; date of death 2/18/2020; study start date 6/24/2019). The remaining 3 are censored (no progression, no death) and still alive as of April 23, 2025.
Arm 2 Pembrolizumab Only
n=1 Participants
Patients receive pembrolizumab IV over 30 minutes every 3-4 weeks for 1 year at the discretion of the treating physician. The one participant in this arm is alive and censored (no progression, no death) as of April 23, 2025.
Number of Participants With Progression
1 Participants
0 Participants

SECONDARY outcome

Timeframe: Baseline up to 5 years

Investigators will assess the rate of failures inside and outside of radiation treatment.

Outcome measures

Outcome measures
Measure
Arm 1 Stereotactic Body Radiation Therapy/Pembrolizumab
n=4 Participants
3-10 treatments of SBRT/ pembrolizumab IV for 30 minutes every 3-4 weeks for 1 year at doctor's discretion. There were 4 participants in Arm 1. One person progressed (date of progression, 1/8/2020; date of death 2/18/2020; study start date 6/24/2019). The remaining 3 are censored (no progression, no death) and still alive as of April 23, 2025.
Arm 2 Pembrolizumab Only
n=1 Participants
Patients receive pembrolizumab IV over 30 minutes every 3-4 weeks for 1 year at the discretion of the treating physician. The one participant in this arm is alive and censored (no progression, no death) as of April 23, 2025.
Number of Participants to Have a Rate of Failure
1 Participants
0 Participants

SECONDARY outcome

Timeframe: Baseline up to 5 years

Investigators will assess the development of new sites of disease during or after immunotherapy

Outcome measures

Outcome measures
Measure
Arm 1 Stereotactic Body Radiation Therapy/Pembrolizumab
n=4 Participants
3-10 treatments of SBRT/ pembrolizumab IV for 30 minutes every 3-4 weeks for 1 year at doctor's discretion. There were 4 participants in Arm 1. One person progressed (date of progression, 1/8/2020; date of death 2/18/2020; study start date 6/24/2019). The remaining 3 are censored (no progression, no death) and still alive as of April 23, 2025.
Arm 2 Pembrolizumab Only
n=1 Participants
Patients receive pembrolizumab IV over 30 minutes every 3-4 weeks for 1 year at the discretion of the treating physician. The one participant in this arm is alive and censored (no progression, no death) as of April 23, 2025.
Number of Participants With New Sites of Disease
1 Participants
0 Participants

SECONDARY outcome

Timeframe: Up to 5 years

All safety measures, including acute and late toxicity, will be reported using descriptive statistics (mean, median, standard deviation, proportions, and 95% confidence intervals). This will include calculating frequency/risk of adverse events by treatment site. Potential toxicities reported would include pneumonitis, esophagitis, chest wall pain, dermatologic toxicity, renal dysfunction, gastrointestinal toxicity including nausea, vomiting, and diarrhea, hepatotoxicity, and abdominal pain. These toxicities would be assessed according to site of irradiation by the treating physician and graded as per Common Terminology Criteria for Adverse Events 5.

Outcome measures

Outcome measures
Measure
Arm 1 Stereotactic Body Radiation Therapy/Pembrolizumab
n=4 Participants
3-10 treatments of SBRT/ pembrolizumab IV for 30 minutes every 3-4 weeks for 1 year at doctor's discretion. There were 4 participants in Arm 1. One person progressed (date of progression, 1/8/2020; date of death 2/18/2020; study start date 6/24/2019). The remaining 3 are censored (no progression, no death) and still alive as of April 23, 2025.
Arm 2 Pembrolizumab Only
n=1 Participants
Patients receive pembrolizumab IV over 30 minutes every 3-4 weeks for 1 year at the discretion of the treating physician. The one participant in this arm is alive and censored (no progression, no death) as of April 23, 2025.
Number of Participants With Adverse Events
4 Participants
1 Participants

Adverse Events

Arm 1 Stereotactic Body Radiation Therapy/Pembrolizumab

Serious events: 2 serious events
Other events: 4 other events
Deaths: 1 deaths

Arm 2 Pembrolizumab Only

Serious events: 1 serious events
Other events: 1 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Arm 1 Stereotactic Body Radiation Therapy/Pembrolizumab
n=4 participants at risk
3-10 treatments of SBRT/ pembrolizumab IV for 30 minutes every 3-4 weeks for 1 year at doctor's discretion.
Arm 2 Pembrolizumab Only
n=1 participants at risk
Patients receive pembrolizumab IV over 30 minutes every 3-4 weeks for 1 year at the discretion of the treating physician.
Vascular disorders
Hypertension
50.0%
2/4 • Number of events 6 • Up to 5 years
100.0%
1/1 • Number of events 1 • Up to 5 years
Investigations
Lymphocyte count decreased
25.0%
1/4 • Number of events 2 • Up to 5 years
0.00%
0/1 • Up to 5 years
Nervous system disorders
Central nervous system necrosis
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Nervous system disorders
Edema cerebral
25.0%
1/4 • Number of events 2 • Up to 5 years
0.00%
0/1 • Up to 5 years
Musculoskeletal and connective tissue disorders
Generalized muscle weakness
25.0%
1/4 • Number of events 2 • Up to 5 years
0.00%
0/1 • Up to 5 years

Other adverse events

Other adverse events
Measure
Arm 1 Stereotactic Body Radiation Therapy/Pembrolizumab
n=4 participants at risk
3-10 treatments of SBRT/ pembrolizumab IV for 30 minutes every 3-4 weeks for 1 year at doctor's discretion.
Arm 2 Pembrolizumab Only
n=1 participants at risk
Patients receive pembrolizumab IV over 30 minutes every 3-4 weeks for 1 year at the discretion of the treating physician.
Investigations
Alanine aminotransferase increased
50.0%
2/4 • Number of events 3 • Up to 5 years
0.00%
0/1 • Up to 5 years
Investigations
Alkaline phosphatase increased
0.00%
0/4 • Up to 5 years
100.0%
1/1 • Number of events 1 • Up to 5 years
Investigations
Aspartate aminotransferase increased
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Metabolism and nutrition disorders
Hyperglycemia
0.00%
0/4 • Up to 5 years
100.0%
1/1 • Number of events 1 • Up to 5 years
Vascular disorders
Hypertension
50.0%
2/4 • Number of events 6 • Up to 5 years
100.0%
1/1 • Number of events 1 • Up to 5 years
Metabolism and nutrition disorders
Hyponatremia
25.0%
1/4 • Number of events 2 • Up to 5 years
0.00%
0/1 • Up to 5 years
Investigations
Lymphocyte count decreased
50.0%
2/4 • Number of events 6 • Up to 5 years
100.0%
1/1 • Number of events 1 • Up to 5 years
Musculoskeletal and connective tissue disorders
Pain in extremity
0.00%
0/4 • Up to 5 years
100.0%
1/1 • Number of events 1 • Up to 5 years
Investigations
Platelet count decreased
0.00%
0/4 • Up to 5 years
100.0%
1/1 • Number of events 2 • Up to 5 years
Respiratory, thoracic and mediastinal disorders
Sinus disorder
0.00%
0/4 • Up to 5 years
100.0%
1/1 • Number of events 1 • Up to 5 years
Investigations
Thyroid stimulating hormone increased
0.00%
0/4 • Up to 5 years
100.0%
1/1 • Number of events 1 • Up to 5 years
Investigations
White blood cell decreased
50.0%
2/4 • Number of events 2 • Up to 5 years
100.0%
1/1 • Number of events 1 • Up to 5 years
Blood and lymphatic system disorders
Anemia
75.0%
3/4 • Number of events 4 • Up to 5 years
0.00%
0/1 • Up to 5 years
Musculoskeletal and connective tissue disorders
Chest wall pain
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Gastrointestinal disorders
Constipation
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Nervous system disorders
Dysgeusia
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Respiratory, thoracic and mediastinal disorders
Dyspnea
50.0%
2/4 • Number of events 2 • Up to 5 years
0.00%
0/1 • Up to 5 years
General disorders
Fatigue
50.0%
2/4 • Number of events 4 • Up to 5 years
0.00%
0/1 • Up to 5 years
General disorders
Non-cardiac chest pain
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Respiratory, thoracic and mediastinal disorders
Oropharyngeal pain
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Nervous system disorders
Paresthesia
25.0%
1/4 • Up to 5 years
0.00%
0/1 • Up to 5 years
Skin and subcutaneous tissue disorders
Rash maculo-papular
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Infections and infestations
Sinusitis
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Skin and subcutaneous tissue disorders
Skin and subcutaneous tissue disorders - Other, specify
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Metabolism and nutrition disorders
Anorexia
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Respiratory, thoracic and mediastinal disorders
Cough
75.0%
3/4 • Number of events 3 • Up to 5 years
0.00%
0/1 • Up to 5 years
Nervous system disorders
Dizziness
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Metabolism and nutrition disorders
Hypocalcemia
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Respiratory, thoracic and mediastinal disorders
Pneumonitis
25.0%
1/4 • Number of events 2 • Up to 5 years
0.00%
0/1 • Up to 5 years
Respiratory, thoracic and mediastinal disorders
Pneumothorax
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Infections and infestations
Shingles
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Infections and infestations
Upper respiratory infection
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Gastrointestinal disorders
Abdominal pain
50.0%
2/4 • Number of events 2 • Up to 5 years
0.00%
0/1 • Up to 5 years
Gastrointestinal disorders
Bloating
50.0%
2/4 • Number of events 2 • Up to 5 years
0.00%
0/1 • Up to 5 years
Nervous system disorders
Central nervous system necrosis
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Eye disorders
Dry eye
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Nervous system disorders
Edema cerebral
25.0%
1/4 • Number of events 2 • Up to 5 years
0.00%
0/1 • Up to 5 years
General disorders
Edema limbs
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Eye disorders
Eye disorders - Other, specify
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Injury, poisoning and procedural complications
Fall
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Injury, poisoning and procedural complications
Fracture
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Musculoskeletal and connective tissue disorders
Generalized muscle weakness
25.0%
1/4 • Number of events 2 • Up to 5 years
0.00%
0/1 • Up to 5 years
Nervous system disorders
Headache
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Metabolism and nutrition disorders
Hypoglycemia
25.0%
1/4 • Number of events 2 • Up to 5 years
0.00%
0/1 • Up to 5 years
Metabolism and nutrition disorders
Hypokalemia
25.0%
1/4 • Number of events 3 • Up to 5 years
0.00%
0/1 • Up to 5 years
Metabolism and nutrition disorders
Hypophosphatemia
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Psychiatric disorders
Insomnia
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Investigations
Lymphocyte count increased
25.0%
1/4 • Number of events 2 • Up to 5 years
0.00%
0/1 • Up to 5 years
General disorders
Malaise
25.0%
1/4 • Number of events 2 • Up to 5 years
0.00%
0/1 • Up to 5 years
Gastrointestinal disorders
Nausea
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Nervous system disorders
Peripheral sensory neuropathy
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Nervous system disorders
Seizure
25.0%
1/4 • Number of events 2 • Up to 5 years
0.00%
0/1 • Up to 5 years
Respiratory, thoracic and mediastinal disorders
Sore throat
25.0%
1/4 • Number of events 2 • Up to 5 years
0.00%
0/1 • Up to 5 years
Renal and urinary disorders
Acute kidney injury
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Psychiatric disorders
Confusion
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Investigations
Creatinine increased
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Metabolism and nutrition disorders
Dehydration
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Respiratory, thoracic and mediastinal disorders
Nasal congestion
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Nervous system disorders
Syncope
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years
Nervous system disorders
Tremor
25.0%
1/4 • Number of events 1 • Up to 5 years
0.00%
0/1 • Up to 5 years

Additional Information

Principal Investigator

Wake Forest Baptist Comprehensive Cancer Center

Phone: 3367130031

Results disclosure agreements

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