NCT Number: NCT05008224
The purpose of this study is to evaluate the safety and efficacy of pembrolizumab (MK-3475) monotherapy, followed by chemotherapy, followed by pembrolizumab consolidation. The primary hypothesis of the study is that the complete response (CR) rate at the end of study intervention according to Lugano 2014 response criteria is higher than conventional chemotherapy.
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Notify Me18 year and older
All sexes
Interventional
Phase 2
Liverpool Hospital-Haematology ( Site 0906), Liverpool, New South Wales, Australia
Healthy volunteers accepted: No
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
The main inclusion criteria include, but are not limited to the following:
Exclusion criteria
The main exclusion criteria include, but are not limited to the following:
200 mg IV administered on Day 1 of each 3-week cycle for 3 cycles during pembrolizumab monotherapy.
400 mg IV administered on Day 1 of each 6-week cycle for 4 cycles as pembrolizumab consolidation.
Other names: MK-3475, SCH 900475, KEYTRUDA®
25 mg/m^2 IV administered as part of AVD chemotherapy on Days 1 and 15 of each 4-week cycle for 2 cycles in all participants after PET scan 2 and up to 4 additional cycles after PET scan 3 (participants who are PET scan 3 negative, or positive and ≥60 years of age).
35 mg/m^2 IV administered as part of escBEACOPP chemotherapy on Day 1 of each 3-week cycle for up to 4 cycles after PET scan 3 (participants who are PET scan 3 positive, <60 years of age).
Other names: Adriamycin, DOXIL®, Rubex®
6 mg/m^2 IV administered as part of AVD chemotherapy on Days 1 and 15 of each 4-week cycle for 2 cycles after PET scan 2 (all participants) and up to 4 additional cycles after PET scan 3 (participants who are PET scan 3 negative, or positive and ≥60 years of age).
Other names: Alkaban-AQ®, Velban®
375 mg/m^2 IV administered as part of AVD chemotherapy on Days 1 and 15 of each 4-week cycle for 2 cycles after PET scan 2 (all participants) and up to 4 additional cycles after PET scan 3 (participants who are PET scan 3 negative, or positive and ≥60 years of age).
Other names: Dtic-Dome®
10 units/m^2 IV administered as part of escBEACOPP chemotherapy on Day 8 of each 3-week cycle for up to 4 cycles after PET scan 3 (participants who are PET scan 3 positive and <60 years of age).
Other names: Blenoxane®
200 mg/m^2 IV administered as part of escBEACOPP chemotherapy on Days 1-3 of each 3-week cycle for up to 4 cycles after PET scan 3 (participants who are PET scan 3 positive and <60 years of age).
Other names: Toposar®, VePesid®, Etopophos®, VP-16, Etoposide phosphate
1250 mg/m^2 IV administered as part of escBEACOPP chemotherapy on Day 1 of each 3-week cycle for up to 4 cycles after PET scan 3 (participants who are PET scan 3 positive and <60 years of age).
Other names: Neosar®, Cytoxan®
1.4 mg/m^2 IV administered as part of escBEACOPP chemotherapy on Day 8 of each 3-week cycle for up to 4 cycles after PET scan 3 (participants who are PET scan 3 positive and <60 years of age).
Other names: Oncovin®, Vincasar PFS®
100 mg/m^2 orally (PO) administered as part of escBEACOPP chemotherapy on Days 1-7 of each 3-week cycle for up to 4 cycles after PET scan 3 (participants who are PET scan 3 positive and <60 years of age).
Other names: Matulane®
40 mg/m^2 PO administered as part of escBEACOPP chemotherapy on Days 1-14 of each 3-week cycle for up to 4 cycles after PET scan 3 (participants who are PET scan 3 positive and <60 years of age).
Other names: Liquid Pred®, Meticorten®, Orasone®, Deltasone®
Time frame: Up to approximately 24 months
CR rate was assessed by BICR using Computed Tomography (CT) and PET scan according to Lugano 2014 response criteria (Cheson, B.D. et al, Journal of Clinical Oncology, 2014). At each timepoint, CR was determined by combining the anatomic response, metabolic response, and clinical data. The criteria for CR included complete metabolic (no/minimal 2-fluorodeoxyglucose [FDG] uptake) and radiologic response (target lesions regress to ≤1.5 cm in longest transverse diameter of a lesion) and no new lesions. Per protocol, participants who discontinued study intervention during pembrolizumab monotherapy, chemotherapy, or pembrolizumab consolidation, or are lost to follow-up, or receive any new non-study anticancer therapy prior to end of treatment were classified as non-responders. The percentage of participants who had CR after the completion of pembrolizumab consolidation is presented.
Time frame: Up to approximately 31 months
CR rate was assessed by the investigator using CT and PET scan according to Lugano 2014 response criteria (Cheson, B.D. et al, Journal of Clinical Oncology, 2014). At each timepoint, CR was determined by combining the anatomic response, metabolic response, and clinical data. The criteria for CR included complete metabolic (no/minimal FDG uptake) and radiologic response (target lesions regress to ≤1.5 cm in longest transverse diameter of a lesion) and no new lesions. Per protocol, participants who discontinued study intervention during pembrolizumab monotherapy, chemotherapy, or pembrolizumab consolidation, or are lost to follow-up, or receive any new non-study anticancer therapy prior to end of treatment were classified as non-responders. The percentage of participants who had CR after the completion of pembrolizumab consolidation is presented.
Time frame: Up to approximately 31 months
DurCR was defined as the time from CR to progressive disease (PD) or death due to any cause, whichever came first. CR was assessed by BICR using CT and PET scan according to Lugano 2014 response criteria (Cheson, B.D. et al, Journal of Clinical Oncology, 2014). At each timepoint, CR was determined by combining the anatomic response, metabolic response, and clinical data. The criteria for CR included complete metabolic (no/minimal FDG uptake) and radiologic response (target lesions regress to ≤1.5 cm in longest transverse diameter of a lesion) and no new lesions. PD was defined as uptake moderately or markedly higher than the liver and/or new lesions. DurCR was analyzed by the Kaplan-Meier method for censored data and is presented for participants who demonstrated CR.
Time frame: Up to approximately 10 weeks
The rate of PET negativity was defined as the percentage of participants considered negative on the FDG-PET 5-point scale, as assessed by BICR according to Lugano 2014 response criteria (Cheson, B.D. et al, Journal of Clinical Oncology, 2014). Participants were assigned a single score on the FDG-PET 5-point scale measuring FDG uptake (1 = no uptake above background, 2 = uptake above background but ≤ mediastinum, 3 = uptake > mediastinum but ≤ liver, 4 = uptake moderately > liver, 5 = uptake markedly > liver or new FDG-positive lesions). Higher scores corresponded to greater uptake (greater disease). FDG-PET 5-point scale scores of 1, 2, and 3 were considered negative and scores of 4 and 5 were considered positive. The percentage of participants who were assessed as negative at PET scan 2, after completion of 3 cycles of pembrolizumab monotherapy, is presented.
Time frame: Up to approximately 5 months
The rate of PET negativity was defined as the percentage of participants considered negative on the FDG-PET 5-point scale, as assessed by BICR according to Lugano 2014 response criteria (Cheson, B.D. et al, Journal of Clinical Oncology, 2014). Participants were assigned a single score on the FDG-PET 5-point scale measuring FDG uptake (1 = no uptake above background, 2 = uptake above background but ≤ mediastinum, 3 = uptake > mediastinum but ≤ liver, 4 = uptake moderately > liver, 5 = uptake markedly > liver or new FDG-positive lesions). Higher scores corresponded to greater uptake (greater disease). FDG-PET 5-point scale scores of 1, 2, and 3 were considered negative and scores of 4 and 5 were considered positive. The percentage of participants who were assessed as negative at PET scan 3, after completion of 3 cycles of pembrolizumab monotherapy and phase 1 AVD chemotherapy (2 AVD cycles), is presented.
Time frame: Up to approximately 31 months
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention. Per protocol, collection and reporting of AEs was based on the study treatment received by the participant (pembrolizumab, AVD chemotherapy, or escBEACOPP chemotherapy) at the time of the event. The number of participants who experienced an AE is reported.
Time frame: Up to approximately 17 months
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention. Per protocol, collection and reporting of AEs was based on the study treatment received by the participant (pembrolizumab, AVD chemotherapy, or escBEACOPP chemotherapy) at the time of the event. The number of participants who discontinued study intervention due to an AE is reported.
Merck Sharp & Dohme LLC
Industry
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Acronym: KEYNOTE-C11
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