Trial Outcomes & Findings for Quad Shot Radiotherapy in Combination With Immune Checkpoint Inhibition (NCT NCT04454489)

NCT ID: NCT04454489

Last Updated: 2025-11-19

Results Overview

Overall response will be measured according to RECIST 1.1 criteria to determine the percentage of participants with either a partial or complete response and the corresponding 95% Clopper-Pearson exact confidence interval. The best overall response is the best response recorded from the start of the treatment across all time points. COMPLETE RESPONSE: Disappearance (or decrease to the point at which measurement is not possible) of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \<10 mm (the sum may not be "0" if there are target nodes) PARTIAL RESPONSE: At least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum of diameters

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

21 participants

Primary outcome timeframe

Up to 2 years

Results posted on

2025-11-19

Participant Flow

Participant milestones

Participant milestones
Measure
Quad-shot Palliative Radiotherapy and Immunotherapy
Systemic therapy (ICI) and radiotherapy will be administered according to the standard of care, according to the treating medical oncologist and radiation oncologist, respectively Pembrolizumab (immunotherapy): Pembrolizumab 200 mg will be given every 3 weeks to tumor progression or treatment tolerance. Quad-shot palliative radiotherapy: - Each cycle of quad-shot radiotherapy will be comprised of 14.8 Gy in 4 fractions (3.7 Gy per fraction) delivered twice daily (at least 6 hours apart) over two consecutive days. * All patients will receive 1 cycle of quad-shot radiotherapy between ICI cycles 2-3. * Subsequent cycles may occur between immunotherapy cycles 6-7 and 11-12, if more than 1 cycle can be safely delivered and the patient has experienced less than a partial response at protocol-specified tumor assessments (after C5 and C10). The eligibility for subsequent cycles will be at the discretion of the treating radiation oncologist. Therefore, the total prescription dose will be: * 14.8 Gy in 4 fractions for those that complete 1 cycle (all patients will receive 1 cycle) * 19.6 Gy in 8 fractions for those that complete 2 cycles * 44.4 Gy in 12 fractions for those that complete 3 cycles
Overall Study
STARTED
20
Overall Study
COMPLETED
2
Overall Study
NOT COMPLETED
18

Reasons for withdrawal

Reasons for withdrawal
Measure
Quad-shot Palliative Radiotherapy and Immunotherapy
Systemic therapy (ICI) and radiotherapy will be administered according to the standard of care, according to the treating medical oncologist and radiation oncologist, respectively Pembrolizumab (immunotherapy): Pembrolizumab 200 mg will be given every 3 weeks to tumor progression or treatment tolerance. Quad-shot palliative radiotherapy: - Each cycle of quad-shot radiotherapy will be comprised of 14.8 Gy in 4 fractions (3.7 Gy per fraction) delivered twice daily (at least 6 hours apart) over two consecutive days. * All patients will receive 1 cycle of quad-shot radiotherapy between ICI cycles 2-3. * Subsequent cycles may occur between immunotherapy cycles 6-7 and 11-12, if more than 1 cycle can be safely delivered and the patient has experienced less than a partial response at protocol-specified tumor assessments (after C5 and C10). The eligibility for subsequent cycles will be at the discretion of the treating radiation oncologist. Therefore, the total prescription dose will be: * 14.8 Gy in 4 fractions for those that complete 1 cycle (all patients will receive 1 cycle) * 19.6 Gy in 8 fractions for those that complete 2 cycles * 44.4 Gy in 12 fractions for those that complete 3 cycles
Overall Study
Disease progression
12
Overall Study
Death
4
Overall Study
Adverse Event
1
Overall Study
Physician Decision
1

Baseline Characteristics

Quad Shot Radiotherapy in Combination With Immune Checkpoint Inhibition

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Quad-shot Palliative Radiotherapy and Immunotherapy
n=21 Participants
Systemic therapy (ICI) and radiotherapy will be administered according to the standard of care, according to the treating medical oncologist and radiation oncologist, respectively Pembrolizumab (immunotherapy): Pembrolizumab 200 mg will be given every 3 weeks to tumor progression or treatment tolerance. Quad-shot palliative radiotherapy: - Each cycle of quad-shot radiotherapy will be comprised of 14.8 Gy in 4 fractions (3.7 Gy per fraction) delivered twice daily (at least 6 hours apart) over two consecutive days. * All patients will receive 1 cycle of quad-shot radiotherapy between ICI cycles 2-3. * Subsequent cycles may occur between immunotherapy cycles 6-7 and 11-12, if more than 1 cycle can be safely delivered and the patient has experienced less than a partial response at protocol-specified tumor assessments (after C5 and C10). The eligibility for subsequent cycles will be at the discretion of the treating radiation oncologist. Therefore, the total prescription dose will be: * 14.8 Gy in 4 fractions for those that complete 1 cycle (all patients will receive 1 cycle) * 19.6 Gy in 8 fractions for those that complete 2 cycles * 44.4 Gy in 12 fractions for those that complete 3 cycles
Age, Categorical
<=18 years
0 Participants
n=39 Participants
Age, Categorical
Between 18 and 65 years
12 Participants
n=39 Participants
Age, Categorical
>=65 years
9 Participants
n=39 Participants
Age, Continuous
64 years
n=39 Participants
Sex: Female, Male
Female
7 Participants
n=39 Participants
Sex: Female, Male
Male
14 Participants
n=39 Participants
Race/Ethnicity, Customized
Race/Ethnicity · Caucasian (White)
16 Participants
n=39 Participants
Race/Ethnicity, Customized
Race/Ethnicity · African American (Black)
4 Participants
n=39 Participants
Race/Ethnicity, Customized
Race/Ethnicity · Hispanic
1 Participants
n=39 Participants
Region of Enrollment
United States
21 participants
n=39 Participants
Primary Cancer Site
Pharynx
7 Participants
n=39 Participants
Primary Cancer Site
Larynx
6 Participants
n=39 Participants
Primary Cancer Site
Oral Cavity
7 Participants
n=39 Participants
Primary Cancer Site
R Temporal Fossa
1 Participants
n=39 Participants

PRIMARY outcome

Timeframe: Up to 2 years

Population: Five of the patients who started treatment were not evaluable for response. The number entered below is the percentage with a complete or partial response. A 95% Clopper Pearson exact confidence interval on the rate is reported.

Overall response will be measured according to RECIST 1.1 criteria to determine the percentage of participants with either a partial or complete response and the corresponding 95% Clopper-Pearson exact confidence interval. The best overall response is the best response recorded from the start of the treatment across all time points. COMPLETE RESPONSE: Disappearance (or decrease to the point at which measurement is not possible) of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \<10 mm (the sum may not be "0" if there are target nodes) PARTIAL RESPONSE: At least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum of diameters

Outcome measures

Outcome measures
Measure
Quad-shot Palliative Radiotherapy and Immunotherapy
n=15 Participants
Systemic therapy (ICI) and radiotherapy will be administered according to the standard of care, according to the treating medical oncologist and radiation oncologist, respectively Pembrolizumab (immunotherapy): Pembrolizumab 200 mg will be given every 3 weeks to tumor progression or treatment tolerance. Quad-shot palliative radiotherapy: - Each cycle of quad-shot radiotherapy will be comprised of 14.8 Gy in 4 fractions (3.7 Gy per fraction) delivered twice daily (at least 6 hours apart) over two consecutive days. * All patients will receive 1 cycle of quad-shot radiotherapy between ICI cycles 2-3. * Subsequent cycles may occur between immunotherapy cycles 6-7 and 11-12, if more than 1 cycle can be safely delivered and the patient has experienced less than a partial response at protocol-specified tumor assessments (after C5 and C10). The eligibility for subsequent cycles will be at the discretion of the treating radiation oncologist. Therefore, the total prescription dose will be: * 14.8 Gy in 4 fractions for those that complete 1 cycle (all patients will receive 1 cycle) * 19.6 Gy in 8 fractions for those that complete 2 cycles * 44.4 Gy in 12 fractions for those that complete 3 cycles
Overall Response -
40.0 percentage of participants
Interval 16.3 to 67.7

SECONDARY outcome

Timeframe: Up to 2 years

Population: Five of the patients who started treatment were not evaluable for response. The number entered below is the percentage with a complete or partial response. A 95% Clopper Pearson exact confidence interval on the rate is reported.

Response rate will be measured as the following: Complete: Disappearance (or decrease to the point at which measurement is not possible) of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \<10 mm. Partial: At least a 30% decrease in the sum of diameters of target lesions. Progressive Disease: Greater than 20% increase in the sum of the longest diameters (SLD) taking as reference the smallest SLD recorded since the treatment started (nadir) and minimum 5 mm increase over the nadir. When sum becomes very small, increases within measurement error (2-3 mm) can lead to 20% increase. Stable Disease: Greater than 20% increase in the sum of the longest diameters (SLD) taking as reference the smallest SLD recorded since the treatment started (nadir) and minimum 5 mm increase over the nadir. When sum becomes very small, increases within measurement error (2-3 mm) can lead to 20% increase.

Outcome measures

Outcome measures
Measure
Quad-shot Palliative Radiotherapy and Immunotherapy
n=15 Participants
Systemic therapy (ICI) and radiotherapy will be administered according to the standard of care, according to the treating medical oncologist and radiation oncologist, respectively Pembrolizumab (immunotherapy): Pembrolizumab 200 mg will be given every 3 weeks to tumor progression or treatment tolerance. Quad-shot palliative radiotherapy: - Each cycle of quad-shot radiotherapy will be comprised of 14.8 Gy in 4 fractions (3.7 Gy per fraction) delivered twice daily (at least 6 hours apart) over two consecutive days. * All patients will receive 1 cycle of quad-shot radiotherapy between ICI cycles 2-3. * Subsequent cycles may occur between immunotherapy cycles 6-7 and 11-12, if more than 1 cycle can be safely delivered and the patient has experienced less than a partial response at protocol-specified tumor assessments (after C5 and C10). The eligibility for subsequent cycles will be at the discretion of the treating radiation oncologist. Therefore, the total prescription dose will be: * 14.8 Gy in 4 fractions for those that complete 1 cycle (all patients will receive 1 cycle) * 19.6 Gy in 8 fractions for those that complete 2 cycles * 44.4 Gy in 12 fractions for those that complete 3 cycles
Response Rate in the Target Lesions
40.0 percentage of evaluable patients
Interval 16.3 to 67.7

SECONDARY outcome

Timeframe: Up to 2 years

Population: Five of the patients who started treatment were not evaluable for response. The number entered below is the percentage with a complete or partial response. A 95% Clopper Pearson exact confidence interval on the rate is reported.

Response rate will be measured using RECIST 1.1: Complete: Disappearance (or decrease to the point at which measurement is not possible) of all non-target lesions. All lymph nodes must be non-pathological in size (\< 10 mm short axis). Partial: Non-complete response/Non-progressive disease: Persistence of 1 or more non-target lesion(s). Progressive Disease: Unequivocal progression of existing non-target lesions. The appearance of one or more new lesions. Unequivocal progression should not normally trump target lesion status. It must be representative of overall disease status change, not a single lesion increase. Stable Disease: Greater than 20% increase in the sum of the longest diameters (SLD) taking as reference the smallest SLD recorded since the treatment started (nadir) and minimum 5 mm increase over the nadir. When sum becomes very small, increases within measurement error (2-3 mm) can lead to 20% increase.

Outcome measures

Outcome measures
Measure
Quad-shot Palliative Radiotherapy and Immunotherapy
n=15 Participants
Systemic therapy (ICI) and radiotherapy will be administered according to the standard of care, according to the treating medical oncologist and radiation oncologist, respectively Pembrolizumab (immunotherapy): Pembrolizumab 200 mg will be given every 3 weeks to tumor progression or treatment tolerance. Quad-shot palliative radiotherapy: - Each cycle of quad-shot radiotherapy will be comprised of 14.8 Gy in 4 fractions (3.7 Gy per fraction) delivered twice daily (at least 6 hours apart) over two consecutive days. * All patients will receive 1 cycle of quad-shot radiotherapy between ICI cycles 2-3. * Subsequent cycles may occur between immunotherapy cycles 6-7 and 11-12, if more than 1 cycle can be safely delivered and the patient has experienced less than a partial response at protocol-specified tumor assessments (after C5 and C10). The eligibility for subsequent cycles will be at the discretion of the treating radiation oncologist. Therefore, the total prescription dose will be: * 14.8 Gy in 4 fractions for those that complete 1 cycle (all patients will receive 1 cycle) * 19.6 Gy in 8 fractions for those that complete 2 cycles * 44.4 Gy in 12 fractions for those that complete 3 cycles
Response Rate in the Non-Target Lesions
10 percentage of evaluable patients
Interval 0.3 to 44.5

SECONDARY outcome

Timeframe: Up to 2 years

Population: Six patients had either a complete or partial response.

For the duration of response, among participants investigators will estimate both the mean duration and the corresponding 95% confidence intervals for the mean and inter-quartile range for the median. The duration of response at the target lesion will be defined as the duration from the time measurement criteria are met for complete response (CR) or partial response (PR) (whichever is first recorded) until the first date of recurrent or progressive disease.

Outcome measures

Outcome measures
Measure
Quad-shot Palliative Radiotherapy and Immunotherapy
n=6 Participants
Systemic therapy (ICI) and radiotherapy will be administered according to the standard of care, according to the treating medical oncologist and radiation oncologist, respectively Pembrolizumab (immunotherapy): Pembrolizumab 200 mg will be given every 3 weeks to tumor progression or treatment tolerance. Quad-shot palliative radiotherapy: - Each cycle of quad-shot radiotherapy will be comprised of 14.8 Gy in 4 fractions (3.7 Gy per fraction) delivered twice daily (at least 6 hours apart) over two consecutive days. * All patients will receive 1 cycle of quad-shot radiotherapy between ICI cycles 2-3. * Subsequent cycles may occur between immunotherapy cycles 6-7 and 11-12, if more than 1 cycle can be safely delivered and the patient has experienced less than a partial response at protocol-specified tumor assessments (after C5 and C10). The eligibility for subsequent cycles will be at the discretion of the treating radiation oncologist. Therefore, the total prescription dose will be: * 14.8 Gy in 4 fractions for those that complete 1 cycle (all patients will receive 1 cycle) * 19.6 Gy in 8 fractions for those that complete 2 cycles * 44.4 Gy in 12 fractions for those that complete 3 cycles
Duration of Response at the Target Lesions - Mean Measurement
11.6 months
Interval 3.89 to 19.31

SECONDARY outcome

Timeframe: Up to 2 years

Population: Six evaluable patients had a complete or partial response.

The duration of response at the target lesion(s) will be defined as the duration from the time measurement criteria are met for complete response or partial response (whichever is first recorded) until the first date of recurrent or progressive disease. For the duration of response, among participants investigators will estimate the median duration and the corresponding 95% confidence intervals for the mean and inter-quartile range for the median. Target Lesions: COMPLETE RESPONSE: Disappearance (or decrease to the point at which measurement is not possible) of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \<10 mm (the sum may not be "0" if there are target nodes) PARTIAL RESPONSE: At least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum of diameters

Outcome measures

Outcome measures
Measure
Quad-shot Palliative Radiotherapy and Immunotherapy
n=6 Participants
Systemic therapy (ICI) and radiotherapy will be administered according to the standard of care, according to the treating medical oncologist and radiation oncologist, respectively Pembrolizumab (immunotherapy): Pembrolizumab 200 mg will be given every 3 weeks to tumor progression or treatment tolerance. Quad-shot palliative radiotherapy: - Each cycle of quad-shot radiotherapy will be comprised of 14.8 Gy in 4 fractions (3.7 Gy per fraction) delivered twice daily (at least 6 hours apart) over two consecutive days. * All patients will receive 1 cycle of quad-shot radiotherapy between ICI cycles 2-3. * Subsequent cycles may occur between immunotherapy cycles 6-7 and 11-12, if more than 1 cycle can be safely delivered and the patient has experienced less than a partial response at protocol-specified tumor assessments (after C5 and C10). The eligibility for subsequent cycles will be at the discretion of the treating radiation oncologist. Therefore, the total prescription dose will be: * 14.8 Gy in 4 fractions for those that complete 1 cycle (all patients will receive 1 cycle) * 19.6 Gy in 8 fractions for those that complete 2 cycles * 44.4 Gy in 12 fractions for those that complete 3 cycles
Duration of Response at the Target Lesions - Median Measurement
9.44 months
Interval 4.37 to 22.98

SECONDARY outcome

Timeframe: Up to 2 years.

Population: 20 patients received at least one cycle of therapy.

For progression-free survival investigators will estimate Kaplan Meier survival curves and the median time to progression-free survival, as well as survival rates at 6 months and 1 year post treatment. Progression-Free Survival is defined as the duration of time from registration to the time of progression, death, or date of last contact; those lost to follow-up will be censored.

Outcome measures

Outcome measures
Measure
Quad-shot Palliative Radiotherapy and Immunotherapy
n=20 Participants
Systemic therapy (ICI) and radiotherapy will be administered according to the standard of care, according to the treating medical oncologist and radiation oncologist, respectively Pembrolizumab (immunotherapy): Pembrolizumab 200 mg will be given every 3 weeks to tumor progression or treatment tolerance. Quad-shot palliative radiotherapy: - Each cycle of quad-shot radiotherapy will be comprised of 14.8 Gy in 4 fractions (3.7 Gy per fraction) delivered twice daily (at least 6 hours apart) over two consecutive days. * All patients will receive 1 cycle of quad-shot radiotherapy between ICI cycles 2-3. * Subsequent cycles may occur between immunotherapy cycles 6-7 and 11-12, if more than 1 cycle can be safely delivered and the patient has experienced less than a partial response at protocol-specified tumor assessments (after C5 and C10). The eligibility for subsequent cycles will be at the discretion of the treating radiation oncologist. Therefore, the total prescription dose will be: * 14.8 Gy in 4 fractions for those that complete 1 cycle (all patients will receive 1 cycle) * 19.6 Gy in 8 fractions for those that complete 2 cycles * 44.4 Gy in 12 fractions for those that complete 3 cycles
Progression-Free Survival
9.2 months
Interval 3.4 to 17.2

SECONDARY outcome

Timeframe: Up to 2 years.

Population: 20 patients received at least one cycle of therapy.

For progression-free survival investigators will estimate Kaplan Meier survival curves and the median time to progression-free survival, as well as survival rates at 6 months and 1 year post treatment. Progression-Free Survival is defined as the duration of time from registration to the time of progression, death, or date of last contact; those lost to follow-up will be censored.

Outcome measures

Outcome measures
Measure
Quad-shot Palliative Radiotherapy and Immunotherapy
n=20 Participants
Systemic therapy (ICI) and radiotherapy will be administered according to the standard of care, according to the treating medical oncologist and radiation oncologist, respectively Pembrolizumab (immunotherapy): Pembrolizumab 200 mg will be given every 3 weeks to tumor progression or treatment tolerance. Quad-shot palliative radiotherapy: - Each cycle of quad-shot radiotherapy will be comprised of 14.8 Gy in 4 fractions (3.7 Gy per fraction) delivered twice daily (at least 6 hours apart) over two consecutive days. * All patients will receive 1 cycle of quad-shot radiotherapy between ICI cycles 2-3. * Subsequent cycles may occur between immunotherapy cycles 6-7 and 11-12, if more than 1 cycle can be safely delivered and the patient has experienced less than a partial response at protocol-specified tumor assessments (after C5 and C10). The eligibility for subsequent cycles will be at the discretion of the treating radiation oncologist. Therefore, the total prescription dose will be: * 14.8 Gy in 4 fractions for those that complete 1 cycle (all patients will receive 1 cycle) * 19.6 Gy in 8 fractions for those that complete 2 cycles * 44.4 Gy in 12 fractions for those that complete 3 cycles
Progression-Free Survival - Survival Rate Percentages
12 months survival
7 Participants
Progression-Free Survival - Survival Rate Percentages
6 months survival
12 Participants

SECONDARY outcome

Timeframe: Up to 2 years

Population: 20 patients received at least one cycle of therapy.

For time to event measure of overall survival investigators will estimate Kaplan Meier survival curves and the median time to overall survival, as well as survival rates at 6 months and 1 year post treatment. Overall Survival is defined as the duration of time from registration to date of death or date of last contact; those lost to follow-up will be censored.

Outcome measures

Outcome measures
Measure
Quad-shot Palliative Radiotherapy and Immunotherapy
n=20 Participants
Systemic therapy (ICI) and radiotherapy will be administered according to the standard of care, according to the treating medical oncologist and radiation oncologist, respectively Pembrolizumab (immunotherapy): Pembrolizumab 200 mg will be given every 3 weeks to tumor progression or treatment tolerance. Quad-shot palliative radiotherapy: - Each cycle of quad-shot radiotherapy will be comprised of 14.8 Gy in 4 fractions (3.7 Gy per fraction) delivered twice daily (at least 6 hours apart) over two consecutive days. * All patients will receive 1 cycle of quad-shot radiotherapy between ICI cycles 2-3. * Subsequent cycles may occur between immunotherapy cycles 6-7 and 11-12, if more than 1 cycle can be safely delivered and the patient has experienced less than a partial response at protocol-specified tumor assessments (after C5 and C10). The eligibility for subsequent cycles will be at the discretion of the treating radiation oncologist. Therefore, the total prescription dose will be: * 14.8 Gy in 4 fractions for those that complete 1 cycle (all patients will receive 1 cycle) * 19.6 Gy in 8 fractions for those that complete 2 cycles * 44.4 Gy in 12 fractions for those that complete 3 cycles
Overall Survival - Months
14.9 months
Interval 4.9 to 25.8

SECONDARY outcome

Timeframe: Up to 2 years

Population: 20 patients received at least one cycle of therapy.The 6-month survival rate was 69.6%; the 12-month survival rate was 51.4%

For time to event measure of overall survival investigators will estimate Kaplan Meier survival curves and the median time to overall survival, as well as survival rates at 6 months and 1 year post treatment. Overall Survival is defined as the duration of time from registration to date of death or date of last contact; those lost to follow-up will be censored.

Outcome measures

Outcome measures
Measure
Quad-shot Palliative Radiotherapy and Immunotherapy
n=20 Participants
Systemic therapy (ICI) and radiotherapy will be administered according to the standard of care, according to the treating medical oncologist and radiation oncologist, respectively Pembrolizumab (immunotherapy): Pembrolizumab 200 mg will be given every 3 weeks to tumor progression or treatment tolerance. Quad-shot palliative radiotherapy: - Each cycle of quad-shot radiotherapy will be comprised of 14.8 Gy in 4 fractions (3.7 Gy per fraction) delivered twice daily (at least 6 hours apart) over two consecutive days. * All patients will receive 1 cycle of quad-shot radiotherapy between ICI cycles 2-3. * Subsequent cycles may occur between immunotherapy cycles 6-7 and 11-12, if more than 1 cycle can be safely delivered and the patient has experienced less than a partial response at protocol-specified tumor assessments (after C5 and C10). The eligibility for subsequent cycles will be at the discretion of the treating radiation oncologist. Therefore, the total prescription dose will be: * 14.8 Gy in 4 fractions for those that complete 1 cycle (all patients will receive 1 cycle) * 19.6 Gy in 8 fractions for those that complete 2 cycles * 44.4 Gy in 12 fractions for those that complete 3 cycles
Overall Survival - Survival Rate Percentages
6 months
14 Participants
Overall Survival - Survival Rate Percentages
12 months
10 Participants

SECONDARY outcome

Timeframe: Up to 2 years

Population: For evaluable patients, the percentage of patients with the listed adverse event is given below with a 95% exact confidence interval.

Tolerability of intervention will be assessed using Patient-Reported Outcomes Version of the Common Terminology Criteria for Adverse Event (PRO CTCAE). Investigators will estimate the percentage of patients with different adverse events using a 95% Clopper Pearson exact confidence level. Listed adverse events were grade 3+ and deemed at least possibly related to therapy.

Outcome measures

Outcome measures
Measure
Quad-shot Palliative Radiotherapy and Immunotherapy
n=15 Participants
Systemic therapy (ICI) and radiotherapy will be administered according to the standard of care, according to the treating medical oncologist and radiation oncologist, respectively Pembrolizumab (immunotherapy): Pembrolizumab 200 mg will be given every 3 weeks to tumor progression or treatment tolerance. Quad-shot palliative radiotherapy: - Each cycle of quad-shot radiotherapy will be comprised of 14.8 Gy in 4 fractions (3.7 Gy per fraction) delivered twice daily (at least 6 hours apart) over two consecutive days. * All patients will receive 1 cycle of quad-shot radiotherapy between ICI cycles 2-3. * Subsequent cycles may occur between immunotherapy cycles 6-7 and 11-12, if more than 1 cycle can be safely delivered and the patient has experienced less than a partial response at protocol-specified tumor assessments (after C5 and C10). The eligibility for subsequent cycles will be at the discretion of the treating radiation oncologist. Therefore, the total prescription dose will be: * 14.8 Gy in 4 fractions for those that complete 1 cycle (all patients will receive 1 cycle) * 19.6 Gy in 8 fractions for those that complete 2 cycles * 44.4 Gy in 12 fractions for those that complete 3 cycles
Tolerability - Adverse Events Assessed Using PRO-CTCAE Version 5.0
Weight Loss
7 percentage of evaluable patients
Interval 0.0 to 32.0
Tolerability - Adverse Events Assessed Using PRO-CTCAE Version 5.0
Leukocytosis
7 percentage of evaluable patients
Interval 0.0 to 32.0
Tolerability - Adverse Events Assessed Using PRO-CTCAE Version 5.0
Dysphagia
27 percentage of evaluable patients
Interval 8.0 to 55.0
Tolerability - Adverse Events Assessed Using PRO-CTCAE Version 5.0
Abdominal Pain
7 percentage of evaluable patients
Interval 0.0 to 32.0
Tolerability - Adverse Events Assessed Using PRO-CTCAE Version 5.0
Dry Mouth
7 percentage of evaluable patients
Interval 0.0 to 32.0
Tolerability - Adverse Events Assessed Using PRO-CTCAE Version 5.0
Nausea
7 percentage of evaluable patients
Interval 0.0 to 32.0
Tolerability - Adverse Events Assessed Using PRO-CTCAE Version 5.0
Fatigue
7 percentage of evaluable patients
Interval 0.0 to 32.0
Tolerability - Adverse Events Assessed Using PRO-CTCAE Version 5.0
Infection
7 percentage of evaluable patients
Interval 0.0 to 32.0
Tolerability - Adverse Events Assessed Using PRO-CTCAE Version 5.0
Injury or poisoning
7 percentage of evaluable patients
Interval 0.0 to 32.0
Tolerability - Adverse Events Assessed Using PRO-CTCAE Version 5.0
Bullous Pemphigoid
7 percentage of evaluable patients
Interval 0.0 to 32.0
Tolerability - Adverse Events Assessed Using PRO-CTCAE Version 5.0
Pruritus
7 percentage of evaluable patients
Interval 0.0 to 32.0
Tolerability - Adverse Events Assessed Using PRO-CTCAE Version 5.0
Rash Maculo-papular
7 percentage of evaluable patients
Interval 0.0 to 32.0

Adverse Events

Quad-shot Palliative Radiotherapy and Immunotherapy

Serious events: 15 serious events
Other events: 20 other events
Deaths: 13 deaths

Serious adverse events

Serious adverse events
Measure
Quad-shot Palliative Radiotherapy and Immunotherapy
n=20 participants at risk
Systemic therapy (ICI) and radiotherapy will be administered according to the standard of care, according to the treating medical oncologist and radiation oncologist, respectively Pembrolizumab (immunotherapy): Pembrolizumab 200 mg will be given every 3 weeks to tumor progression or treatment tolerance. Quad-shot palliative radiotherapy: - Each cycle of quad-shot radiotherapy will be comprised of 14.8 Gy in 4 fractions (3.7 Gy per fraction) delivered twice daily (at least 6 hours apart) over two consecutive days. * All patients will receive 1 cycle of quad-shot radiotherapy between ICI cycles 2-3. * Subsequent cycles may occur between immunotherapy cycles 6-7 and 11-12, if more than 1 cycle can be safely delivered and the patient has experienced less than a partial response at protocol-specified tumor assessments (after C5 and C10). The eligibility for subsequent cycles will be at the discretion of the treating radiation oncologist. Therefore, the total prescription dose will be: * 14.8 Gy in 4 fractions for those that complete 1 cycle (all patients will receive 1 cycle) * 19.6 Gy in 8 fractions for those that complete 2 cycles * 44.4 Gy in 12 fractions for those that complete 3 cycles
Eye disorders
Floaters
5.0%
1/20 • Number of events 1 • Adverse events were recorded with each treatment cycle, up to 2 years.
Gastrointestinal disorders
Abdominal Pain
5.0%
1/20 • Number of events 1 • Adverse events were recorded with each treatment cycle, up to 2 years.
Gastrointestinal disorders
Colonic perforation
5.0%
1/20 • Number of events 1 • Adverse events were recorded with each treatment cycle, up to 2 years.
Gastrointestinal disorders
Dysphagia
10.0%
2/20 • Number of events 2 • Adverse events were recorded with each treatment cycle, up to 2 years.
Gastrointestinal disorders
Oral hemorrhage
5.0%
1/20 • Number of events 1 • Adverse events were recorded with each treatment cycle, up to 2 years.
General disorders
Death
15.0%
3/20 • Number of events 3 • Adverse events were recorded with each treatment cycle, up to 2 years.
General disorders
Disease progression
15.0%
3/20 • Number of events 3 • Adverse events were recorded with each treatment cycle, up to 2 years.
Infections and infestations
Infections and Infestations
10.0%
2/20 • Number of events 2 • Adverse events were recorded with each treatment cycle, up to 2 years.
Injury, poisoning and procedural complications
Injury, poisoning and procedural complications
5.0%
1/20 • Number of events 1 • Adverse events were recorded with each treatment cycle, up to 2 years.
Injury, poisoning and procedural complications
Tracheostomy site bleeding
5.0%
1/20 • Number of events 1 • Adverse events were recorded with each treatment cycle, up to 2 years.
Investigations
Weight Loss
10.0%
2/20 • Number of events 2 • Adverse events were recorded with each treatment cycle, up to 2 years.
Metabolism and nutrition disorders
Hypercalcemia
5.0%
1/20 • Number of events 1 • Adverse events were recorded with each treatment cycle, up to 2 years.
Musculoskeletal and connective tissue disorders
Generalized muscle weakness
5.0%
1/20 • Number of events 1 • Adverse events were recorded with each treatment cycle, up to 2 years.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Tumor Hemorrhage
5.0%
1/20 • Number of events 1 • Adverse events were recorded with each treatment cycle, up to 2 years.
Nervous system disorders
Facial muscle weakness
5.0%
1/20 • Number of events 1 • Adverse events were recorded with each treatment cycle, up to 2 years.
Nervous system disorders
Headache
5.0%
1/20 • Number of events 1 • Adverse events were recorded with each treatment cycle, up to 2 years.
Nervous system disorders
Paresthesia
10.0%
2/20 • Number of events 2 • Adverse events were recorded with each treatment cycle, up to 2 years.
Nervous system disorders
Stroke
5.0%
1/20 • Number of events 1 • Adverse events were recorded with each treatment cycle, up to 2 years.
Nervous system disorders
Vasovagal Reaction
5.0%
1/20 • Number of events 1 • Adverse events were recorded with each treatment cycle, up to 2 years.
Respiratory, thoracic and mediastinal disorders
Hemorrhage
5.0%
1/20 • Number of events 1 • Adverse events were recorded with each treatment cycle, up to 2 years.
Respiratory, thoracic and mediastinal disorders
Hypoxia
5.0%
1/20 • Number of events 1 • Adverse events were recorded with each treatment cycle, up to 2 years.
Respiratory, thoracic and mediastinal disorders
Respiratory Aspiration
5.0%
1/20 • Number of events 1 • Adverse events were recorded with each treatment cycle, up to 2 years.
Skin and subcutaneous tissue disorders
Bullous (Dermatitis) Pemphigoid
5.0%
1/20 • Number of events 1 • Adverse events were recorded with each treatment cycle, up to 2 years.
Vascular disorders
Thromboembolic Event
5.0%
1/20 • Number of events 1 • Adverse events were recorded with each treatment cycle, up to 2 years.

Other adverse events

Other adverse events
Measure
Quad-shot Palliative Radiotherapy and Immunotherapy
n=20 participants at risk
Systemic therapy (ICI) and radiotherapy will be administered according to the standard of care, according to the treating medical oncologist and radiation oncologist, respectively Pembrolizumab (immunotherapy): Pembrolizumab 200 mg will be given every 3 weeks to tumor progression or treatment tolerance. Quad-shot palliative radiotherapy: - Each cycle of quad-shot radiotherapy will be comprised of 14.8 Gy in 4 fractions (3.7 Gy per fraction) delivered twice daily (at least 6 hours apart) over two consecutive days. * All patients will receive 1 cycle of quad-shot radiotherapy between ICI cycles 2-3. * Subsequent cycles may occur between immunotherapy cycles 6-7 and 11-12, if more than 1 cycle can be safely delivered and the patient has experienced less than a partial response at protocol-specified tumor assessments (after C5 and C10). The eligibility for subsequent cycles will be at the discretion of the treating radiation oncologist. Therefore, the total prescription dose will be: * 14.8 Gy in 4 fractions for those that complete 1 cycle (all patients will receive 1 cycle) * 19.6 Gy in 8 fractions for those that complete 2 cycles * 44.4 Gy in 12 fractions for those that complete 3 cycles
Cardiac disorders
Bradycardia
10.0%
2/20 • Number of events 4 • Adverse events were recorded with each treatment cycle, up to 2 years.
Cardiac disorders
Tachycardia
25.0%
5/20 • Number of events 7 • Adverse events were recorded with each treatment cycle, up to 2 years.
Ear and labyrinth disorders
Ear pain
15.0%
3/20 • Number of events 8 • Adverse events were recorded with each treatment cycle, up to 2 years.
Ear and labyrinth disorders
Hearing impairment
10.0%
2/20 • Number of events 2 • Adverse events were recorded with each treatment cycle, up to 2 years.
Endocrine disorders
Hypothyroidism
25.0%
5/20 • Number of events 7 • Adverse events were recorded with each treatment cycle, up to 2 years.
Eye disorders
Dry eye
10.0%
2/20 • Number of events 2 • Adverse events were recorded with each treatment cycle, up to 2 years.
Gastrointestinal disorders
Abdominal pain
20.0%
4/20 • Number of events 7 • Adverse events were recorded with each treatment cycle, up to 2 years.
Gastrointestinal disorders
Constipation
10.0%
2/20 • Number of events 3 • Adverse events were recorded with each treatment cycle, up to 2 years.
Gastrointestinal disorders
Diarrhea
25.0%
5/20 • Number of events 7 • Adverse events were recorded with each treatment cycle, up to 2 years.
Gastrointestinal disorders
Dry mouth
75.0%
15/20 • Number of events 24 • Adverse events were recorded with each treatment cycle, up to 2 years.
Gastrointestinal disorders
Dysphagia
50.0%
10/20 • Number of events 14 • Adverse events were recorded with each treatment cycle, up to 2 years.
Gastrointestinal disorders
GERD
20.0%
4/20 • Number of events 5 • Adverse events were recorded with each treatment cycle, up to 2 years.
Gastrointestinal disorders
Mucositis
10.0%
2/20 • Number of events 2 • Adverse events were recorded with each treatment cycle, up to 2 years.
Gastrointestinal disorders
Nausea
25.0%
5/20 • Number of events 13 • Adverse events were recorded with each treatment cycle, up to 2 years.
Gastrointestinal disorders
Oral pain
20.0%
4/20 • Number of events 4 • Adverse events were recorded with each treatment cycle, up to 2 years.
Gastrointestinal disorders
Swallowing difficulties
10.0%
2/20 • Number of events 2 • Adverse events were recorded with each treatment cycle, up to 2 years.
Gastrointestinal disorders
Vomiting
15.0%
3/20 • Number of events 5 • Adverse events were recorded with each treatment cycle, up to 2 years.
General disorders
Edema of limbs
30.0%
6/20 • Number of events 8 • Adverse events were recorded with each treatment cycle, up to 2 years.
General disorders
Fatigue
80.0%
16/20 • Number of events 30 • Adverse events were recorded with each treatment cycle, up to 2 years.
Infections and infestations
Thrush
15.0%
3/20 • Number of events 4 • Adverse events were recorded with each treatment cycle, up to 2 years.
Investigations
ALT increase
10.0%
2/20 • Number of events 3 • Adverse events were recorded with each treatment cycle, up to 2 years.
Investigations
AST increase
15.0%
3/20 • Number of events 3 • Adverse events were recorded with each treatment cycle, up to 2 years.
Investigations
Alkaline Phosphatase increase
20.0%
4/20 • Number of events 5 • Adverse events were recorded with each treatment cycle, up to 2 years.
Investigations
Creatinine increase
10.0%
2/20 • Number of events 7 • Adverse events were recorded with each treatment cycle, up to 2 years.
Investigations
Lipase increase
20.0%
4/20 • Number of events 7 • Adverse events were recorded with each treatment cycle, up to 2 years.
Investigations
Lymphocyte count decrease
80.0%
16/20 • Number of events 37 • Adverse events were recorded with each treatment cycle, up to 2 years.
Investigations
Serum amylase increased
20.0%
4/20 • Number of events 5 • Adverse events were recorded with each treatment cycle, up to 2 years.
Investigations
TSH increase
35.0%
7/20 • Number of events 7 • Adverse events were recorded with each treatment cycle, up to 2 years.
Investigations
WBC decrease
10.0%
2/20 • Number of events 3 • Adverse events were recorded with each treatment cycle, up to 2 years.
Investigations
Weight loss
45.0%
9/20 • Number of events 14 • Adverse events were recorded with each treatment cycle, up to 2 years.
Metabolism and nutrition disorders
Anorexia
20.0%
4/20 • Number of events 4 • Adverse events were recorded with each treatment cycle, up to 2 years.
Metabolism and nutrition disorders
Hypercalcemia
10.0%
2/20 • Number of events 2 • Adverse events were recorded with each treatment cycle, up to 2 years.
Metabolism and nutrition disorders
Hyperglycemia
70.0%
14/20 • Number of events 27 • Adverse events were recorded with each treatment cycle, up to 2 years.
Metabolism and nutrition disorders
Hyperkalemia
20.0%
4/20 • Number of events 10 • Adverse events were recorded with each treatment cycle, up to 2 years.
Metabolism and nutrition disorders
Hypoalbuminemia
35.0%
7/20 • Number of events 13 • Adverse events were recorded with each treatment cycle, up to 2 years.
Metabolism and nutrition disorders
Hypocalcemia
10.0%
2/20 • Number of events 7 • Adverse events were recorded with each treatment cycle, up to 2 years.
Metabolism and nutrition disorders
Hypoglycemia
25.0%
5/20 • Number of events 10 • Adverse events were recorded with each treatment cycle, up to 2 years.
Metabolism and nutrition disorders
Hypomagnesemia
15.0%
3/20 • Number of events 8 • Adverse events were recorded with each treatment cycle, up to 2 years.
Metabolism and nutrition disorders
Hyponatremia
55.0%
11/20 • Number of events 16 • Adverse events were recorded with each treatment cycle, up to 2 years.
Musculoskeletal and connective tissue disorders
Arthritis
15.0%
3/20 • Number of events 6 • Adverse events were recorded with each treatment cycle, up to 2 years.
Musculoskeletal and connective tissue disorders
Back pain
10.0%
2/20 • Number of events 3 • Adverse events were recorded with each treatment cycle, up to 2 years.
Musculoskeletal and connective tissue disorders
Joint pain
10.0%
2/20 • Number of events 2 • Adverse events were recorded with each treatment cycle, up to 2 years.
Musculoskeletal and connective tissue disorders
Muscle spasms
10.0%
2/20 • Number of events 3 • Adverse events were recorded with each treatment cycle, up to 2 years.
Musculoskeletal and connective tissue disorders
Muscle weakness
15.0%
3/20 • Number of events 3 • Adverse events were recorded with each treatment cycle, up to 2 years.
Musculoskeletal and connective tissue disorders
Neck pain
15.0%
3/20 • Number of events 4 • Adverse events were recorded with each treatment cycle, up to 2 years.
Musculoskeletal and connective tissue disorders
Trismus
15.0%
3/20 • Number of events 3 • Adverse events were recorded with each treatment cycle, up to 2 years.
Blood and lymphatic system disorders
Eosinophilia
25.0%
5/20 • Number of events 10 • Adverse events were recorded with each treatment cycle, up to 2 years.
Blood and lymphatic system disorders
Leukocytosis
10.0%
2/20 • Number of events 2 • Adverse events were recorded with each treatment cycle, up to 2 years.
Blood and lymphatic system disorders
Low Hemoglobin
15.0%
3/20 • Number of events 5 • Adverse events were recorded with each treatment cycle, up to 2 years.
Blood and lymphatic system disorders
Anemia
65.0%
13/20 • Number of events 24 • Adverse events were recorded with each treatment cycle, up to 2 years.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Parethesia
10.0%
2/20 • Number of events 2 • Adverse events were recorded with each treatment cycle, up to 2 years.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Tumor pain
45.0%
9/20 • Number of events 15 • Adverse events were recorded with each treatment cycle, up to 2 years.
Nervous system disorders
Dizziness
10.0%
2/20 • Number of events 4 • Adverse events were recorded with each treatment cycle, up to 2 years.
Nervous system disorders
Dysgeusia
30.0%
6/20 • Number of events 11 • Adverse events were recorded with each treatment cycle, up to 2 years.
Nervous system disorders
Dysphasia
10.0%
2/20 • Number of events 2 • Adverse events were recorded with each treatment cycle, up to 2 years.
Nervous system disorders
Headaches
15.0%
3/20 • Number of events 4 • Adverse events were recorded with each treatment cycle, up to 2 years.
Psychiatric disorders
Depression
15.0%
3/20 • Number of events 5 • Adverse events were recorded with each treatment cycle, up to 2 years.
Psychiatric disorders
Insomnia
15.0%
3/20 • Number of events 3 • Adverse events were recorded with each treatment cycle, up to 2 years.
Renal and urinary disorders
Chronis Kidney disease
15.0%
3/20 • Number of events 5 • Adverse events were recorded with each treatment cycle, up to 2 years.
Respiratory, thoracic and mediastinal disorders
Cough
20.0%
4/20 • Number of events 7 • Adverse events were recorded with each treatment cycle, up to 2 years.
Respiratory, thoracic and mediastinal disorders
Dyspnea
15.0%
3/20 • Number of events 5 • Adverse events were recorded with each treatment cycle, up to 2 years.
Respiratory, thoracic and mediastinal disorders
Hoarseness
35.0%
7/20 • Number of events 9 • Adverse events were recorded with each treatment cycle, up to 2 years.
Respiratory, thoracic and mediastinal disorders
Productive Cough
20.0%
4/20 • Number of events 5 • Adverse events were recorded with each treatment cycle, up to 2 years.
Respiratory, thoracic and mediastinal disorders
Sore throat
25.0%
5/20 • Number of events 6 • Adverse events were recorded with each treatment cycle, up to 2 years.
Skin and subcutaneous tissue disorders
Dry skin
15.0%
3/20 • Number of events 4 • Adverse events were recorded with each treatment cycle, up to 2 years.
Skin and subcutaneous tissue disorders
Macupapular rash
15.0%
3/20 • Number of events 12 • Adverse events were recorded with each treatment cycle, up to 2 years.
Skin and subcutaneous tissue disorders
Pruritus
50.0%
10/20 • Number of events 18 • Adverse events were recorded with each treatment cycle, up to 2 years.
Vascular disorders
Hot flashes
10.0%
2/20 • Number of events 2 • Adverse events were recorded with each treatment cycle, up to 2 years.
Vascular disorders
Hypertension
60.0%
12/20 • Number of events 37 • Adverse events were recorded with each treatment cycle, up to 2 years.
Vascular disorders
Hypotension
15.0%
3/20 • Number of events 4 • Adverse events were recorded with each treatment cycle, up to 2 years.
Vascular disorders
Lymphedema
10.0%
2/20 • Number of events 3 • Adverse events were recorded with each treatment cycle, up to 2 years.

Additional Information

Principal Investigator

Wake Forest Baptist Comprehensive Cancer Center

Phone: 336 -713-5440

Results disclosure agreements

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