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Trial ยท NCT03677141

A Phase Ib/II Study Investigating the Safety, Tolerability, Pharmacokinetics, and Efficacy of Mosunetuzumab (BTCT4465A) in Combination With CHOP or CHP-Polatuzumab Vedotin in Participants With B-Cell Non-Hodgkin Lymphoma

NCT03677141, Phase 1, Phase 2, Completed, Hoffmann-La Roche; results first posted 2024-12-18

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. A Phase Ib/II Study Investigating the Safety, Tolerability, Pharmacokinetics, and Efficacy of Mosunetuzumab (BTCT4465A) in Combination With CHOP or CHP-Polatuzumab Vedotin in Participants With B-Cell Non-Hodgkin Lymphoma. Trials, record NCT03677141. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03677141

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
A Phase Ib/II Study Investigating the Safety, Tolerability, Pharmacokinetics, and Efficacy of Mosunetuzumab (BTCT4465A) in Combination With CHOP or CHP-Polatuzumab Vedotin in Participants With B-Cell Non-Hodgkin Lymphoma
NCT number
NCT03677141
Status
Completed
Phases
Phase 1, Phase 2
Enrollment
117 participants, actual
Lead sponsor
Hoffmann-La Roche
Conditions
B-cell Non-Hodgkin Lymphoma
Interventions
Mosunetuzumab, Polatuzumab Vedotin, Rituxumab, Cyclophosphamide, Doxorubicin, Vincristine, Prednisone, Tocilizumab
First posted
2018-09-19
Last updated
2024-12-18
Other registries' IDs
eudract:2018-001039-29
Results first posted
2024-12-18

Source ClinicalTrials.gov

Registered outcomes17

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryComplete Response (CR) Rate at the Time of Primary Response Assessment (PRA) Based on Positron Emission Tomography - Computed Tomography (PET-CT) as Determined by Independent Review Committee (IRC)6-8 weeks after either C6D1 or last dose of study treatmentThe CR rate was defined as the percentage of participants with CR. Assessments were made according to the Lugano 2014 Response Criteria.
SecondaryCR Rate at PRA Based on CT Only as Determined by the Investigator (Phase II)6-8 weeks after C6D1 or last dose of study treatment
SecondaryOverall Response Rate (ORR) at PRA Based on PET-CT as Determined by the Investigator (Phase II)6-8 weeks after C6D1 or last dose of study treatmentORR is defined as a CR or PR at the time of primary assessment based on PET-CT, as determined by the investigator.
SecondaryORR at PRA Based on CT Only as Determined by the Investigator (Phase II)6-8 weeks after C6D1 or last dose of study treatmentORR is defined as a CR or PR at the time of primary assessment based on CT only, as determined by the investigator.
SecondaryBest ORR Based on PET-CT and/or CT Scan as Determined by the Investigator (Phase II)Up to approximately 50 monthsBest ORR was defined as CR or PR at any time on study and based on PET-CT or CT only as determined by the investigator.
SecondaryDuration of Response (DOR) as Determined by the Investigator (Phase II)Up to approximately 50 months
DOR is defined as the time from the first occurrence of a documented objective response to disease progression or relapse as determined by the investigator, or death from any cause, whichever occurs first. The range values (min-max) are based on censored observations (if a participant did not experience disease progression or death prior to the end of the trial DOR was censored on the date of the last tumor assessment).
SecondaryProgression-free Survival (PFS) as Determined by the Investigator (Phase II)Up to approximately 50 months
PFS is defined as the time from randomization to the first occurrence of disease progression or relapse as determined by the investigator, or death from any cause, whichever occurs first. The earliest contributing event to PFS is reported. The range (min-max) values are based on censored observations (participants without a baseline-evaluable tumor assessment were censored at the date of randomization or first study treatment, plus 1 day).
SecondaryPFS at 1 Year as Determined by the Investigator (Phase II)1 yearPFS at 1 year is defined as the proportion of participants with disease progression or relapse as determined by the investigator, or death from any cause within 1 year of randomization.
SecondaryEvent-free Survival (EFS) as Determined by the Investigator (Phase II)Up to 50 months
EFS is defined as the time from randomization to the first occurrence of disease progression or relapse, as determined by the investigator, initiation of new anti-lymphoma therapy (NALT), or death from any cause, whichever occurs first. The range values (min-max) are based on censored observations (if a participant did not experience disease progression or death prior to the end of the trial DOR was censored on the date of the last tumor assessment).
SecondaryTime to Deterioration in Lymphoma Symptoms as Measured by the Functional Assessment of Cancer Therapy - Lymphoma (FACT-Lym) SubscaleC1D1 through follow-up period (to begin 2 years after PRA or at the time of study drug discontinuation)

Outcomes17

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYComplete Response (CR) Rate at the Time of Primary Response Assessment (PRA) Based on Positron Emission Tomography - Computed Tomography (PET-CT) as Determined by Independent Review Committee (IRC)6-8 weeks after either C6D1 or last dose of study treatment
The intent-to-treat (ITT) population consisted of all participants. Efficacy analyses for Arms A1, A2, and B were exploratory. The primary efficacy analysis compared Arm 1 vs Arm 2, with participants grouped according to the treatment arm assigned at randomization. Group C was included in secondary efficacy analysis, and efficacy analyses for Arms A1, A2, and B were exploratory.
Percentage of participantsNUMBER
SECONDARYCR Rate at PRA Based on CT Only as Determined by the Investigator (Phase II)6-8 weeks after C6D1 or last dose of study treatmentThe intent-to-treat (ITT) population consisted of all participants. Efficacy analyses for Arms A1, A2, and B were exploratory.Percentage of participantsNUMBER
SECONDARYOverall Response Rate (ORR) at PRA Based on PET-CT as Determined by the Investigator (Phase II)6-8 weeks after C6D1 or last dose of study treatmentThe intent-to-treat (ITT) population consisted of all participants. Efficacy analyses for Arms A1, A2, and B were exploratory.Percentage of participantsNUMBER
SECONDARYORR at PRA Based on CT Only as Determined by the Investigator (Phase II)6-8 weeks after C6D1 or last dose of study treatmentThe intent-to-treat (ITT) population consisted of all participants. Efficacy analyses for Arms A1, A2, and B were exploratory.Percentage of participantsNUMBER
SECONDARYBest ORR Based on PET-CT and/or CT Scan as Determined by the Investigator (Phase II)Up to approximately 50 monthsThe intent-to-treat (ITT) population consisted of all participants. Efficacy analyses for Arms A1, A2, and B were exploratory.Percentage of respondersNUMBER
SECONDARYDuration of Response (DOR) as Determined by the Investigator (Phase II)Up to approximately 50 months
The number of participants analyzed was the number of participants with a PR or CR in each arm. The range values (min-max) are based on censored observations (if a participant did not experience disease progression or death prior to the end of the trial DOR was censored on the date of the last tumor assessment). Efficacy analyses for Arms A1, A2, and B were exploratory.
MonthsMEDIAN
SECONDARYProgression-free Survival (PFS) as Determined by the Investigator (Phase II)Up to approximately 50 months
Efficacy analyses for Arms A1, A2, and B were exploratory. The number of participants analyzed reflects the number of participants with the event. The range (min-max) values are based on censored observations (participants without a baseline-evaluable tumor assessment were censored at the date of randomization or first study treatment, plus 1 day).
MonthsMEDIAN
SECONDARYPFS at 1 Year as Determined by the Investigator (Phase II)1 yearEfficacy analyses for Arms A1, A2, and B were exploratory.Percentage of participantsNUMBER
SECONDARYEvent-free Survival (EFS) as Determined by the Investigator (Phase II)Up to 50 months
Efficacy analyses for Arms A1, A2, and B were exploratory. The number of participants analyzed reflects the number of participants with the event. The range (min-max) values are based on censored observations (participants without a baseline-evaluable tumor assessment or documentation of NALT were censored at the date of randomization or first study treatment, plus 1 day).
MonthsMEDIAN
SECONDARYTime to Deterioration in Lymphoma Symptoms as Measured by the Functional Assessment of Cancer Therapy - Lymphoma (FACT-Lym) SubscaleC1D1 through follow-up period (to begin 2 years after PRA or at the time of study drug discontinuation)
The intent-to-treat (ITT) population consisted of all participants. Efficacy analyses for Arms A1, A2, and B were exploratory. Patient-reported outcomes (PROs) were evaluated only for Arm 1 and Arm 2 per protocol.
MonthsMEDIAN

Results by group230

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Complete Response (CR) Rate at the Time of Primary Response Assessment (PRA) Based on Positron Emission Tomography - Computed Tomography (PET-CT) as Determined by Independent Review Committee (IRC)Arm 1: Phase II Mosunetuzumab + CHP-Pola (Randomized)72.595% Confidence Interval 56.11 to 85.40Percentage of participants
Complete Response (CR) Rate at the Time of Primary Response Assessment (PRA) Based on Positron Emission Tomography - Computed Tomography (PET-CT) as Determined by Independent Review Committee (IRC)Arm 2: Phase II Rituximab + CHP-Pola (Randomized)77.395% Confidence Interval 54.63 to 92.18Percentage of participants
CR Rate at PRA Based on CT Only as Determined by the Investigator (Phase II)Group C: Phase II Mosunetuzumab + CHOP50.095% Confidence Interval 33.80 to 66.20Percentage of participants
CR Rate at PRA Based on CT Only as Determined by the Investigator (Phase II)Arm 1: Phase II Mosunetuzumab + CHP-Pola (Randomized)47.595% Confidence Interval 31.51 to 63.87Percentage of participants
CR Rate at PRA Based on CT Only as Determined by the Investigator (Phase II)Arm 2: Phase II Rituximab + CHP-Pola (Randomized)31.895% Confidence Interval 13.86 to 54.87Percentage of participants
Overall Response Rate (ORR) at PRA Based on PET-CT as Determined by the Investigator (Phase II)Group C: Phase II Mosunetuzumab + CHOP87.595% Confidence Interval 73.20 to 95.81Percentage of participants
Overall Response Rate (ORR) at PRA Based on PET-CT as Determined by the Investigator (Phase II)Arm 1: Phase II Mosunetuzumab + CHP-Pola (Randomized)80.095% Confidence Interval 64.35 to 90.95Percentage of participants
Overall Response Rate (ORR) at PRA Based on PET-CT as Determined by the Investigator (Phase II)Arm 2: Phase II Rituximab + CHP-Pola (Randomized)77.395% Confidence Interval 54.63 to 92.18Percentage of participants
ORR at PRA Based on CT Only as Determined by the Investigator (Phase II)Group C: Phase II Mosunetuzumab + CHOP85.095% Confidence Interval 70.16 to 94.29Percentage of participants
ORR at PRA Based on CT Only as Determined by the Investigator (Phase II)Arm 1: Phase II Mosunetuzumab + CHP-Pola (Randomized)72.595% Confidence Interval 56.11 to 85.40Percentage of participants

Participant flow18

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDGroup A1: Phase Ib Mosunetuzumab + CHOP3
Overall StudySTARTEDGroup A2: Phase Ib Mosunetuzumab + CHOP4
Overall StudySTARTEDGroup B: Phase Ib Mosunetuzumab + CHP-Pola8
Overall StudySTARTEDGroup C: Phase II Mosunetuzumab + CHOP40
Overall StudySTARTEDArm 1: Phase II Mosunetuzumab + CHP-Pola (Randomized)40
Overall StudySTARTEDArm 2: Phase II Rituximab + CHP-Pola (Randomized)22
Overall StudyCOMPLETEDGroup A1: Phase Ib Mosunetuzumab + CHOP1
Overall StudyCOMPLETEDGroup A2: Phase Ib Mosunetuzumab + CHOP3
Overall StudyCOMPLETEDGroup B: Phase Ib Mosunetuzumab + CHP-Pola1
Overall StudyCOMPLETEDGroup C: Phase II Mosunetuzumab + CHOP28

Adverse events1,596

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAnaemiaBlood and lymphatic system disordersGroup A1: Phase Ib Mosunetuzumab + CHOP235
otherAnaemiaBlood and lymphatic system disordersGroup A2: Phase Ib Mosunetuzumab + CHOP244
otherAnaemiaBlood and lymphatic system disordersGroup B: Phase Ib Mosunetuzumab + CHP-Pola284
otherAnaemiaBlood and lymphatic system disordersGroup C: Phase II Mosunetuzumab + CHOP174035
otherAnaemiaBlood and lymphatic system disordersArm 1: Phase II Mosunetuzumab + CHP-Pola (Randomized)93813
otherAnaemiaBlood and lymphatic system disordersArm 2: Phase II Rituximab + CHP-Pola (Randomized)52211
otherFebrile neutropeniaBlood and lymphatic system disordersGroup A1: Phase Ib Mosunetuzumab + CHOP030
otherFebrile neutropeniaBlood and lymphatic system disordersGroup A2: Phase Ib Mosunetuzumab + CHOP141
otherFebrile neutropeniaBlood and lymphatic system disordersGroup B: Phase Ib Mosunetuzumab + CHP-Pola181
otherFebrile neutropeniaBlood and lymphatic system disordersGroup C: Phase II Mosunetuzumab + CHOP2402

Adverse event totals18

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityGroup A1: Phase Ib Mosunetuzumab + CHOP23
Total, all-cause mortalityGroup A2: Phase Ib Mosunetuzumab + CHOP14
Total, all-cause mortalityGroup B: Phase Ib Mosunetuzumab + CHP-Pola68
Total, all-cause mortalityGroup C: Phase II Mosunetuzumab + CHOP940
Total, all-cause mortalityArm 1: Phase II Mosunetuzumab + CHP-Pola (Randomized)540
Total, all-cause mortalityArm 2: Phase II Rituximab + CHP-Pola (Randomized)322
Total, other adverse eventsGroup A1: Phase Ib Mosunetuzumab + CHOP33
Total, other adverse eventsGroup A2: Phase Ib Mosunetuzumab + CHOP44
Total, other adverse eventsGroup B: Phase Ib Mosunetuzumab + CHP-Pola88
Total, other adverse eventsGroup C: Phase II Mosunetuzumab + CHOP4040

Papers2

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
37581593DERIVEDPubMed
39908481DERIVEDPubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

None in this release.

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

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