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Pembrolizumab and External Beam Radiation Therapy in Treating Patients With Relapsed or Refractory Non-Hodgkin Lymphoma

Phase II Study of Pembrolizumab and Fractionated External Beam Radiotherapy in Patients With Relapsed and Refractory Non-Hodgkin Lymphoma

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03210662
Enrollment
17
Registered
2017-07-07
Start date
2018-02-01
Completion date
2025-10-31
Last updated
2026-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Primary Mediastinal (Thymic) Large B-Cell Lymphoma, Recurrent Aggressive Non-Hodgkin Lymphoma, Recurrent Mature T- Cell and NK-Cell Non-Hodgkin Lymphoma, Recurrent Non-Hodgkin Lymphoma, Recurrent T-Cell Non-Hodgkin Lymphoma, Recurrent Transformed Follicular Lymphoma to Diffuse Large B-Cell Lymphoma, Refractory Aggressive Non-Hodgkin Lymphoma, Refractory Non-Hodgkin Lymphoma, Refractory T-Cell Non-Hodgkin Lymphoma, Refractory Transformed Follicular Lymphoma to Diffuse Large B-Cell Lymphoma, Transformed Marginal Zone Lymphoma to Diffuse Large B-Cell Lymphoma

Brief summary

This phase II trial studies how well pembrolizumab and external beam radiation therapy work in treating patients with non-Hodgkin lymphoma that has come back (relapsed) or does not respond to treatment (refractory). Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving pembrolizumab and external beam radiation therapy may work better in treating patients with non-Hodgkin lymphoma than pembrolizumab alone.

Detailed description

PRIMARY OBJECTIVES: I. To determine the overall response rate (ORR) of pembrolizumab with concurrent fractionated external beam radiotherapy (EBRT) among patients with relapsed and refractory non-Hodgkin lymphoma (NHL). SECONDARY OBJECTIVES: I. To determine the safety of pembrolizumab with fractionated EBRT in patients with relapsed and refractory NHL. II. To determine the overall response rate and complete response rate (CRR) of irradiated and non-irradiated lesions to treatment with concurrent pembrolizumab and fractionated EBRT in patients with relapsed and refractory NHL. III. To determine the progression free survival (PFS) of pembrolizumab in combination with fractionated EBRT. IV. To determine the overall survival (OS) of pembrolizumab in combination with fractionated EBRT. V. To determine the duration of response of irradiated and non-irradiated lesions after concurrent pembrolizumab and fractionated EBRT. EXPLORATORY OBJECTIVES: I. To identify tumor and peripheral blood markers predictive of response to concurrent pembrolizumab and low to moderate dose EBRT in the setting of relapsed and refractory NHL. II. To determine if a course of hypo-fractionated EBRT can improve response after progressive disease among patients treated with fractionated EBRT and pembrolizumab. OUTLINE: Beginning on day 1, patients undergo fractionated EBRT daily for 5 consecutive days a week for up to 12 or 22 treatments. Patients also receive pembrolizumab intravenously (IV) over 1 hour on day 2. Treatment with pembrolizumab repeats every 21 days for up to 35 cycles in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up at 30 days, every 3 months for 1 year and then every 6 months thereafter.

Interventions

RADIATIONExternal Beam Radiation Therapy

Undergo EBRT

BIOLOGICALPembrolizumab

Given IV

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
M.D. Anderson Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Have at least one site of lymphomatous disease amenable to external beam radiation therapy (EBRT) * Have pathologic confirmation of aggressive non-Hodgkin lymphoma (including diffuse large B cell lymphoma, transformed follicular lymphoma, transformed marginal zone lymphoma, primary mediastinal B-cell lymphoma, T cell lymphoma and NK T-cell lymphoma). Patients with indolent B cell lymphoma are excluded * Be willing and able to provide written informed consent/assent for the trial * Have measurable disease (\>= 1.5 cm in the longest diameter for nodal or extranodal disease) * Have provided archival tumor tissue sample or newly obtained core or excisional biopsy of a tumor lesion not previously irradiated. Formalin-fixed, paraffin embedded (FFPE) tissue blocks are preferred to slides. Newly obtained biopsies are preferred to archived tissue. Newly-obtained is defined as a specimen obtained up to 6 weeks (42 days) prior to initiation of treatment on day 1. Subjects for whom newly-obtained samples cannot be provided (e.g. inaccessible or subject safety concern) may submit an archived specimen. Note: If submitting unstained cut slides, newly cut slides should be submitted to the testing laboratory within 14 days from the date slides are cut * Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1. Evaluation of ECOG is to be performed within 7 days prior to the date of allocation/randomization * Absolute neutrophil count (ANC) \>= 1,000 /mcL (performed within 10 days of treatment initiation) * Platelets \>= 50,000 / mcL (performed within 10 days of treatment initiation) * Hemoglobin \>= 8 g/dL or \>= 5.6 mmol/L without transfusion or erythropoietin (EPO) dependency (within 7 days of assessment) (performed within 10 days of treatment initiation) * Serum creatinine OR measured or calculated creatinine clearance (creatinine clearance should be calculated per institutional standard) (glomerular filtration rate \[GFR\] can also be used in place of creatinine or creatinine clearance \[CrCl\]) =\< 1.5 x upper limit of normal (ULN) OR \>= 60 mL/min for subject with creatinine levels \> 1.5 x institutional ULN (performed within 10 days of treatment initiation) * Serum total bilirubin =\< 1.5 x ULN OR direct bilirubin =\< ULN for subjects with total bilirubin levels \> 1.5 ULN (performed within 10 days of treatment initiation) * Aspartate aminotransferase (AST) serum glutamic-oxaloacetic transaminase (SGOT) and alanine aminotransferase (ALT) serum glutamic pyruvic transaminase (SGPT) =\< 2.5 x ULN OR =\< 5 x ULN for subjects with liver metastases (performed within 10 days of treatment initiation) * Albumin \>= 2.5 mg/dL (performed within 10 days of treatment initiation) * International normalized ratio (INR) or prothrombin time (PT) =\< 1.5 x ULN unless subject is receiving anticoagulant therapy as long as PT or partial thromboplastin time (PTT) is within therapeutic range of intended use of anticoagulants (performed within 10 days of treatment initiation) * Activated partial thromboplastin time (aPTT) =\< 1.5 x ULN unless subject is receiving anticoagulant therapy as long as PT or PTT is within therapeutic range of intended use of anticoagulants (performed within 10 days of treatment initiation) * Female subject of childbearing potential should have a negative urine or serum pregnancy within 72 hours prior to receiving the first dose of study medication. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required * Female subjects of childbearing potential must be willing to use an adequate method of contraception as outlined - contraception, for the course of the study through 120, corresponding to time needed to eliminate any Merck study treatment(s) and/or any active comparator/combination, plus 30 days (a menstruation cycle) for study treatments with risk of genotoxicity days after the last dose of study medication. Note: Abstinence is acceptable if this is the usual lifestyle and preferred contraception for the subject

Exclusion criteria

* Has had prior radiation therapy to the potential radiation target such that additional radiation therapy is considered unsafe by the treating radiation oncologist * Has a history of allogeneic stem cell transplantation * Has a diagnosis of active scleroderma or lupus or any other autoimmune disease that by the opinion of the treating radiation oncologist would put the patient at unacceptable risk of toxicity * Is currently participating and receiving study therapy or has participated in a study of an investigational agent and received study therapy or used an investigational device within 4 weeks of the first dose of treatment * Has a diagnosis of immunodeficiency or is receiving systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior to the first dose of trial treatment * Has a known history of active Bacillus tuberculosis (TB) * Hypersensitivity to pembrolizumab or any of its excipients * Has had a prior anti-cancer monoclonal antibody (mAb) within 4 weeks prior to study day 1 or who has not recovered (i.e., =\< grade 1 or at baseline) from adverse events due to agents administered more than 4 weeks earlier * Has had prior chemotherapy, targeted small molecule therapy, or radiation therapy within 2 weeks prior to study day 1 or who has not recovered (i.e., =\< grade 1 or at baseline) from adverse events due to a previously administered agent * Note: subjects with =\< grade 2 neuropathy are an exception to this criterion and may qualify for the study * Note: if subject received major surgery, they must have recovered adequately from the toxicity and/or complications from the intervention prior to starting therapy * Has a known additional malignancy that is progressing or requires active treatment within the past 3 years. Exceptions include basal cell carcinoma of the skin or squamous cell carcinoma of the skin that has undergone potentially curative therapy or in situ cervical cancer * Has known active central nervous system (CNS) lymphoma or lymphomatous meningitis. Subjects with previously treated brain metastases may participate provided they are stable (without evidence of progression by imaging for at least four weeks prior to the first dose of trial treatment and any neurologic symptoms have returned to baseline), have no evidence of new or enlarging brain metastases, and are not using steroids for at least 7 days prior to trial treatment * Has active autoimmune disease that has required systemic treatment in the past 2 years (i.e. with use of disease modifying agents, corticosteroids or immunosuppressive drugs). Replacement therapy (e.g., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment * Has history of (non-infectious) pneumonitis that required steroids, evidence of interstitial lung disease or active, non-infectious pneumonitis * Has an active infection requiring systemic therapy * Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with the subject's participation for the full duration of the trial, or is not in the best interest of the subject to participate, in the opinion of the treating investigator * Has known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the trial * Is pregnant or breastfeeding, or expecting to conceive or father children within the projected duration of the trial, starting with the pre-screening or screening visit through 120 days after the last dose of trial treatment * A woman of child bearing potential (WOCBP) who has a positive urine pregnancy test within 72 hours prior to receiving the first dose of study medication. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required. Note: in the event that 72 hours have elapsed between the screening pregnancy test and the first dose of study treatment, another pregnancy test (urine or serum) must be performed and must be negative in order for subject to start receiving study medication * Has received prior therapy with an anti-PD-1, anti-PD-L1, or anti-PD-L2 agent directed to another stimulatory or co-inhibitory T-cell receptor (e.g., CTLA-4, OX-40, CD137) * Has a known history of human immunodeficiency virus (HIV) (HIV 1/2 antibodies) * Has known active hepatitis B (e.g., hepatitis B surface antigen \[HBsAg\] reactive) or hepatitis C (e.g., hepatitis C virus \[HCV\] ribonucleic acid \[RNA\] \[qualitative\] is detected) * Has received a live vaccine within 30 days of planned start of study therapy. Note: seasonal influenza vaccines for injection are generally inactivated flu vaccines and are allowed; however intranasal influenza vaccines (e.g., Flu-Mist) are live attenuated vaccines, and are not allowed

Design outcomes

Primary

MeasureTime frameDescription
Overall Response Rate of Pembrolizumab With Concurrent Fractionated External Beam Radiotherapy (EBRT) Among Patients With Relapsed and Refractory Non-Hodgkin Lymphoma (NHL)Every 3 months until withdrawal of consent, becoming lost to follow-up, or death (an average of 14 months).Disease response will be assessed via revised Lugano classification for the response assessment of Hodgkin and non-Hodgkin lymphoma. The end of treatment assessment is determined by positron emission tomography (PET)-computed tomography (CT) imaging for patients with fluoro-deoxyglucose (FDG) avid hematologic malignancies. For patients with FDG-avid disease, the Deauville Criteria will be utilized for PET-CT scoring on a 5 point 5-point scale, in accordance with standard response criteria. A score of 1-3 is considered negative a score of 4-5 is considered positive for the presence of active lymphoma.

Secondary

MeasureTime frameDescription
Progression Free Survival1.8 ~ 6.5 monthsDisease response will be assessed via revised Lugano classification for the response assessment of Hodgkin and non-Hodgkin lymphoma. The end of treatment assessment is determined by positron emission tomography (PET)-computed tomography (CT) imaging for patients with fluoro-deoxyglucose (FDG) avid hematologic malignancies. For patients with FDG-avid disease, the Deauville Criteria will be utilized for PET-CT scoring on a 5 point 5-point scale, in accordance with standard response criteria. A score of 1-3 is considered negative a score of 4-5 is considered positive for the presence of active lymphoma.
Overall SurvivalEvery 3 months until withdrawal of consent, becoming lost to follow-up, or death.The measurement of overall survival of patients from the start of trial participation until the death of the patient.
Overall and Complete Response Rate of Irradiated vs Non-Irradiated LesionsEvery 3 months until withdrawal of consent, becoming lost to follow-up, or death (an average of 14 months).
Safety of Pembrolizumab With Fractionated EBRTThrough Study Completion (an average of 14 months)Assessing patients who discontinued study treatment due to toxicity/safety concerns

Countries

United States

Participant flow

Recruitment details

Recruited from MD Anderson clinics from February 2018 until October 2021

Baseline characteristics

CharacteristicTotal
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
9 Participants
Age, Categorical
Between 18 and 65 years
8 Participants
Age, Continuous59.9 years
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
14 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
2 Participants
Race (NIH/OMB)
Black or African American
1 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
Race (NIH/OMB)
White
13 Participants
Region of Enrollment
United States
17 participants
Sex: Female, Male
Female
5 Participants
Sex: Female, Male
Male
12 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
14 / 17
other
Total, other adverse events
16 / 17
serious
Total, serious adverse events
10 / 17

Outcome results

Primary

Overall Response Rate of Pembrolizumab With Concurrent Fractionated External Beam Radiotherapy (EBRT) Among Patients With Relapsed and Refractory Non-Hodgkin Lymphoma (NHL)

Disease response will be assessed via revised Lugano classification for the response assessment of Hodgkin and non-Hodgkin lymphoma. The end of treatment assessment is determined by positron emission tomography (PET)-computed tomography (CT) imaging for patients with fluoro-deoxyglucose (FDG) avid hematologic malignancies. For patients with FDG-avid disease, the Deauville Criteria will be utilized for PET-CT scoring on a 5 point 5-point scale, in accordance with standard response criteria. A score of 1-3 is considered negative a score of 4-5 is considered positive for the presence of active lymphoma.

Time frame: Every 3 months until withdrawal of consent, becoming lost to follow-up, or death (an average of 14 months).

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
TotalOverall Response Rate of Pembrolizumab With Concurrent Fractionated External Beam Radiotherapy (EBRT) Among Patients With Relapsed and Refractory Non-Hodgkin Lymphoma (NHL)5 Participants
Secondary

Overall and Complete Response Rate of Irradiated vs Non-Irradiated Lesions

Time frame: Every 3 months until withdrawal of consent, becoming lost to follow-up, or death (an average of 14 months).

ArmMeasureGroupValue (NUMBER)
TotalOverall and Complete Response Rate of Irradiated vs Non-Irradiated LesionsNo PR/CR control of lesions6 participants
TotalOverall and Complete Response Rate of Irradiated vs Non-Irradiated LesionsPR/CR control of lesions10 participants
Non-irradiated LesionOverall and Complete Response Rate of Irradiated vs Non-Irradiated LesionsNo PR/CR control of lesions13 participants
Non-irradiated LesionOverall and Complete Response Rate of Irradiated vs Non-Irradiated LesionsPR/CR control of lesions3 participants
Secondary

Overall Survival

The measurement of overall survival of patients from the start of trial participation until the death of the patient.

Time frame: Every 3 months until withdrawal of consent, becoming lost to follow-up, or death.

ArmMeasureValue (MEDIAN)
TotalOverall Survival6.2 Months
Secondary

Progression Free Survival

Disease response will be assessed via revised Lugano classification for the response assessment of Hodgkin and non-Hodgkin lymphoma. The end of treatment assessment is determined by positron emission tomography (PET)-computed tomography (CT) imaging for patients with fluoro-deoxyglucose (FDG) avid hematologic malignancies. For patients with FDG-avid disease, the Deauville Criteria will be utilized for PET-CT scoring on a 5 point 5-point scale, in accordance with standard response criteria. A score of 1-3 is considered negative a score of 4-5 is considered positive for the presence of active lymphoma.

Time frame: 1.8 ~ 6.5 months

ArmMeasureValue (MEDIAN)
TotalProgression Free Survival2.7 Months
Secondary

Safety of Pembrolizumab With Fractionated EBRT

Assessing patients who discontinued study treatment due to toxicity/safety concerns

Time frame: Through Study Completion (an average of 14 months)

Population: Number of Patients removed from study for Toxicity/Safety reasons

ArmMeasureGroupValue (NUMBER)
TotalSafety of Pembrolizumab With Fractionated EBRTParticipants off treatment for toxicity/safety reasons1 participants
TotalSafety of Pembrolizumab With Fractionated EBRTParticipants off treatment for non-safety reasons16 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026