A Dose Escalation and Expansion Study of Lomvastomig, a PD-1/TIM-3 Bispecific Antibody, in Participants With Advanced and/or Metastatic Solid Tumors

August 5, 2025 updated by: Hoffmann-La Roche

An Open Label, Multicenter, Dose Escalation and Expansion, Phase 1 Study to Evaluate Safety, Pharmacokinetics, and Preliminary Anti-Tumor Activity of RO7121661, a PD-1/TIM-3 Bispecific Antibody, in Patients With Advanced and/or Metastatic Solid Tumors

This is a first-in-human, open-label, multicenter, Phase I multiple-ascending dose (MAD) study of single agent lomvastomig (RO7121661), an anti PD-1 (programmed death-1) and TIM-3 (T-cell immunoglobulin and mucin domain 3) bispecific antibody, for participants with advanced and/or metastatic solid tumors. The study consists of 2 parts: Dose Escalation (Part A) and Expansion (Parts B1, B2, B3, B4, and B5). The Dose Escalation part will be conducted first to determine the maximum tolerated dose (MTD) and/or recommended dose for expansion (RDE) based on safety, tolerability, pharmacokinetic, and/or the pharmacodynamic profile of escalating doses of lomvastomig. The Expansion part will enroll tumor-specific cohorts to evaluate anti-tumor activity of the MTD and/or RDE of lomvastomig from Part A (Q2W) and to confirm safety and tolerability in participants with selected tumor types.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
134

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Denmark
      • Herlev, Denmark, 2730
        • Herlev Hospital
      • København Ø, Denmark, 2100
        • Rigshospitalet
  • France
      • Bordeaux, France, 33076
        • Institut Bergonié
      • Lyon, France, 69008
        • Centre Leon Berard
      • Marseille, France, 13005
        • CHU Timone
      • St Herblain, France, 44805
        • Ico Rene Gauducheau
  • Korea, Republic of
      • Seoul, Korea, Republic of, 03080
        • Seoul National University Hospital
      • Seoul, Korea, Republic of, 03722
        • Severance Hospital, Yonsei University Health System
      • Seoul, Korea, Republic of, 05505
        • Asan Medical Center
  • New Zealand
      • Auckland, New Zealand, 1023
        • Auckland City Hospital
  • Spain
      • Barcelona, Spain, 08035
        • Vall d?Hebron Institute of Oncology (VHIO), Barcelona
      • Madrid, Spain, 28034
        • Hospital Ramon y Cajal
      • Madrid, Spain, 28040
        • START Madrid-FJD, Hospital Fundacion Jimenez Diaz
      • Valencia, Spain, 46010
        • Hospital Clinico Universitario de Valencia
    • Navarra
      • Pamplona, Navarra, Spain, 31008
        • Clinica Universitaria de Navarra
  • United States
    • New York
      • New York, New York, United States, 10032
        • Columbia Univ Med Ctr
    • Texas
      • Houston, Texas, United States, 77030
        • Md Anderson Cancer Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

General Inclusion Criteria:

  • Part A: Patient must have histologically or cytologically confirmed advanced and/or metastatic solid tumor malignancies for which standard curative or palliative measures do not exist, are no longer effective, or are not acceptable to the patient
  • Eastern Cooperative Oncology Group Performance Status 0-1
  • Measurable disease as defined by Response Evaluation Criteria in Solid Tumors (RECIST v1.1)
  • Fresh biopsies may be required
  • Negative HIV, hepatitis B, or hepatitis C test result
  • Women of childbearing potential and male participants must agree to remain abstinent or use contraceptive methods as defined by the protocol

Additional Specific Inclusion Criteria for Participants with Melanoma:

  • Histologically confirmed, unresectable stage III or stage IV melanoma
  • Previously treated with approved anti-programmed death-ligand 1 (PD-L1)/anti-programmed death-1 (PD-1) agents with or without approved anti-cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) therapy and up to one additional treatment regimen

Additional Specific Inclusion Criteria for Participants with Non-small Cell Lung Cancer (NSCLC) who Previously Received Treatment for Metastatic Disease:

  • Histologically confirmed advanced NSCLC
  • Previously treated with approved PD-L1/PD-1 inhibitors and platinum-based chemotherapy
  • Not more than 2 prior lines of treatment for metastatic disease are allowed prior to enrolling to the study
  • Participants must have experienced initial clinical benefit (stable disease or better) from most recent checkpoint inhibitor (CPI) therapy
  • Tumor PD-L1 expression as determined by immunohistochemistry assay of archival tumor tissue or tissue obtained at screening

Additional Specific Inclusion Criteria for Participants with Non-small Cell Lung Cancer (NSCLC) who Previously Did Not Receive Treatment for Metastatic Disease:

  • Histologically confirmed advanced NSCLC
  • Tumor PD-L1 expression as determined by immunohistochemistry assay of archival tumor tissue or tissue obtained at screening

Additional Specific Inclusion Criteria for Participants with Small Cell Lung Cancer (SCLC):

  • Histologically confirmed SCLC
  • Participants may have had prior chemotherapy, radiation therapy, or declined approved therapies for SCLC

Additional Specific Inclusion Criteria for Participants with Esophageal Squamous Cell Carcinoma (ESCC):

  • Participants whose major lesion was histologically confirmed as squamous cell carcinoma or adenosquamous cell carcinoma of the esophagus
  • Patients who have previously received not more than 1 prior line of treatment for metastatic disease prior to enrolling to the study

Exclusion Criteria:

General Exclusion Criteria:

  • Pregnancy, lactation, or breastfeeding
  • Known hypersensitivity to any of the components of RO7121661
  • Active or untreated central nervous system (CNS) metastases
  • An active second malignancy
  • Evidence of concomitant diseases, metabolic dysfunction, physical examination findings, or clinical laboratory findings giving reasonable suspicion of a disease or condition that contraindicates the use of an investigational drug or that may affect the interpretation of the results or render the participant at high risk from treatment complications
  • Known active or uncontrolled bacterial, viral, fungal, mycobacterial, parasitic, or other infection
  • Treatment with oral or IV antibiotics within 2 weeks prior to Cycle 1 Day 1
  • Active or history of autoimmune disease or immune deficiency
  • Prior treatment with adoptive cell therapies, such as CAR-T therapies
  • Concurrent therapy with any other investigational drug <28 days or 5 half-lives of the drug, whichever is shorter, prior to the first RO7247669 administration
  • Regular immunosuppressive therapy
  • Radiotherapy within the last 4 weeks before start of study drug treatment, with the exception of limited palliative radiotherapy
  • Prior treatment with a T-cell immunoglobulin and mucin domain-3 (TIM-3) inhibitor

Additional Specific Exclusion Criteria for Participants with NSCLC who Previously Received Treatment for Metastatic Disease:

- Patients with the following mutations, rearrangements, translocations are not eligible: epidermal growth factor receptor (EGFR); anaplastic lymphoma kinase (ALK); ROS proto-oncogene 1 (ROS1), BRAFV600E, and neurotrophic receptor tyrosine kinase (NTRK)

Additional Specific Exclusion Criteria for Participants with NSCLC who Did Not Previously Receive Treatment for Metastatic Disease:

  • Prior therapy for metastatic disease
  • Adjuvant anti-PD-1 or anti-PD-L1 therapy

Additional Specific Exclusion Criteria for Participants with Small-Cell Lung Cancer (SCLC):

- Prior therapy with any immune CPIs (such as anti-PD-L1/PD-1, CTLA-4)

Additional Specific Exclusion Criteria for Participants with Esophageal Squamous Cell Carcinoma (ESCC):

- Prior therapy with any immunomodulatory agents

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Sequential Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Dose Escalation Part A: Once Every 2 Weeks (Q2W)
Lomvastomig will be administered in treatment cycles once every 2 weeks (Q2W). Dose escalation will be carried out according to a modified continual reassessment method (mCRM) with escalation with overdose control (EWOC) design.
Drug: Lomvastomig
Lomvastomig will be administered intravenously (IV) with a flat dose on the schedule described for each study arm.
Other Names:
  • RG7769
  • RO7121661
Experimental: Expansion Part B1: Metastatic Melanoma Cohort
This cohort will comprise participants with checkpoint inhibitor (CPI) experienced, second line and beyond metastatic melanoma. The starting dose of lomvastomig for Expansion will be derived from the maximum tolerated dose (MTD)/recommended dose for expansion (RDE) and the best dosing schedule determined during Dose Escalation.
Drug: Lomvastomig
Lomvastomig will be administered intravenously (IV) with a flat dose on the schedule described for each study arm.
Other Names:
  • RG7769
  • RO7121661
Experimental: Expansion Part B2: NSCLC Cohort 1
This cohort will comprise participants with CPI and platinum experienced, second or third line PD-L1 positive non-small cell lung cancer (NSCLC). The starting dose of lomvastomig for Expansion will be derived from the MTD/RDE and the best dosing schedule determined during Dose Escalation.
Drug: Lomvastomig
Lomvastomig will be administered intravenously (IV) with a flat dose on the schedule described for each study arm.
Other Names:
  • RG7769
  • RO7121661
Experimental: Expansion Part B4: SCLC Cohort
This cohort will comprise participants with CPI naïve small cell lung cancer (SCLC) with prior failure of, progression on, or intolerance to, standard therapy. The starting dose of lomvastomig for Expansion will be derived from the MTD/RDE and the best dosing schedule determined during Dose Escalation.
Drug: Lomvastomig
Lomvastomig will be administered intravenously (IV) with a flat dose on the schedule described for each study arm.
Other Names:
  • RG7769
  • RO7121661
Experimental: Expansion Part B5: ESCC Cohort
This cohort will comprise participants with CPI-naïve esophageal squamous cell carcinoma (ESCC). The starting dose of lomvastomig for Expansion will be derived from the MTD/RDE and the best dosing schedule determined during Dose Escalation.
Drug: Lomvastomig
Lomvastomig will be administered intravenously (IV) with a flat dose on the schedule described for each study arm.
Other Names:
  • RG7769
  • RO7121661
Experimental: Expansion Part B3: NSCLC Cohort 2

This cohort will comprise participants with PD-L1 high, cancer immunotherapy (CIT) naïve first line NSCLC. The starting dose of lomvastomig for Expansion will be derived from the MTD/RDE and the best dosing schedule determined during Dose Escalation.

This cohort was not initiated and no participants were enrolled in it.
Drug: Lomvastomig
Lomvastomig will be administered intravenously (IV) with a flat dose on the schedule described for each study arm.
Other Names:
  • RG7769
  • RO7121661

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Part A: Number of Participants With a Dose-Limiting Toxicity (DLT)
Time Frame: From Cycle 1 Day 1 to Cycle 2 Day 7 (Cycle length= 14 days)
A DLT was defined as a clinically significant adverse event (AE) or significant laboratory abnormality: 1) occurring during DLT assessment period of 21 days; 2) considered to be related to study treatment RO7121661 by the Investigator; 3) is not attributed to disease progression or another clearly identifiable cause. Following AEs were considered DLTs: Hematological toxicities (Grade 4 neutropenia lasting >5 days, Grade ≥3 febrile neutropenia, Grade 4 thrombocytopenia lasting > 48 hours, Grade 3 thrombocytopenia associated with bleeding episodes, Grade 4 anemia, Grade ≥3 anemia with hemolysis); Non-hematological toxicity Grade ≥3 (Any Grade 3 immune-mediated AE, Grade 3 hyperbilirubinemia lasting for >48 hours/Grade 4 hyperbilirubinemia; Grade ≥3 aspartate aminotransferase (AST) or alanine aminotransferase (ALT) elevations with hyperbilirubinemia of Grade ≥2, Grade 4 AST or ALT elevations, Grade ≥3 nausea, vomiting, or diarrhea, Grade ≥3 non-hematological laboratory abnormality.
From Cycle 1 Day 1 to Cycle 2 Day 7 (Cycle length= 14 days)
Part A: Number of Participants With at Least One AE by Highest Severity, Graded According to the National Cancer Institute Common Terminology Criteria for Adverse Events, Version 5.0 (NCI CTCAE v5.0)
Time Frame: From signing of informed consent form up to 60 days after last treatment administration (up to 41.7 months)
AE=any untoward medical occurrence in a participant administered a pharmaceutical product & which does not necessarily have a causal relationship with treatment & can therefore be any unfavorable & unintended sign (including abnormal laboratory values/abnormal clinical test results), symptoms/disease temporally associated with the use of pharmaceutical product, whether or not considered related to pharmaceutical product. Severity of AEs was graded as: Grade 1=Mild, asymptomatic/mild symptoms, clinical/diagnostic observations only, or intervention not indicated; Grade 2=Moderate, minimal, local/non-invasive intervention indicated, or limiting age-appropriate instrumental activities of daily living; Grade 3=Severe/medically significant but not immediately life-threatening, hospitalization/prolongation of hospitalization indicated; disabling; limiting self-care activities of daily living; Grade 4= Life-threatening consequences, urgent intervention indicated; Grade 5=Death related to AE.
From signing of informed consent form up to 60 days after last treatment administration (up to 41.7 months)
Part B: Objective Response Rate (ORR) as Determined by Investigator Using Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1)
Time Frame: Cycle 1 Day 1 then every 8 weeks for the first year; every 12 weeks thereafter until disease progression or treatment discontinuation (whichever occurs last), initiation of a new line of therapy or death (Up to 43.3 months) (Cycle length= 14 days)
ORR was defined as the percentage of participants with an objective tumor response of complete response (CR) or partial response (PR) as determined by the investigator using RECIST v.1.1. CR was defined as the disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) have a reduction in short axis to <10 millimeters (mm). PR was defined as at least a 30% decrease in the sum of diameters (SOD) of target lesions, taking as reference the baseline SOD.
Cycle 1 Day 1 then every 8 weeks for the first year; every 12 weeks thereafter until disease progression or treatment discontinuation (whichever occurs last), initiation of a new line of therapy or death (Up to 43.3 months) (Cycle length= 14 days)
Part B: Disease Control Rate (DCR) as Determined by Investigator Using RECIST v1.1
Time Frame: Cycle 1 Day 1 then every 8 weeks for the first year; every 12 weeks thereafter until disease progression or treatment discontinuation (whichever occurs last), initiation of a new line of therapy or death (Up to 43.3 months) (Cycle length= 14 days)
DCR was defined as the percentage of participants with an objective tumor response of CR, PR or stable disease (SD) as determined by the investigator using RECIST v.1.1. CR was defined as the disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) have a reduction in short axis to <10 mm. PR was defined as at least a 30% decrease in the SOD of target lesions, taking as reference the baseline SOD. SD was defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for disease progression (PD). PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest sum on the study including baseline (nadir). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm.
Cycle 1 Day 1 then every 8 weeks for the first year; every 12 weeks thereafter until disease progression or treatment discontinuation (whichever occurs last), initiation of a new line of therapy or death (Up to 43.3 months) (Cycle length= 14 days)
Part B: Duration of Response (DOR) as Determined by Investigator Using RECIST v1.1
Time Frame: From first occurrence of documented OR up to disease progression or death (Up to 43.3 months) (Cycle length = 14 days)
DOR was calculated for participants who had a best confirmed overall response (OR) of CR/PR. DOR was defined as time from first occurrence of a documented OR until the time of documented PD or death (within 30 days from last treatment) from any cause, whichever occurs first as determined by investigator assessment using RECIST v1.1. CR was defined as the disappearance of all target lesions or any pathological lymph nodes (whether target or non-target) having a reduction in short axis to <10 mm. PR was defined as at least a 30% decrease in the SOD of target lesions, taking as reference the baseline SOD. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest sum on the study including baseline (nadir). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. Data for participants without PD or death as of the data cut-off date were censored at the time of the last tumor assessment.
From first occurrence of documented OR up to disease progression or death (Up to 43.3 months) (Cycle length = 14 days)
Part B: Progression Free Survival (PFS) as Determined by Investigator Using RECIST v1.1
Time Frame: From treatment initiation (Cycle 1 Day 1) until disease progression or death (Up to 43.3 months) (Cycle length= 14 days)
PFS was defined as the time from study treatment initiation (Cycle 1 Day 1) to the first occurrence of documented PD, as determined by the investigator according to RECIST v1.1 or death from any cause, whichever occurs first. PD was defined as at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum in the study, including baseline, in addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. Data for participants without PD or death as of the data cut-off date were censored at the time of the last tumor assessment.
From treatment initiation (Cycle 1 Day 1) until disease progression or death (Up to 43.3 months) (Cycle length= 14 days)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Parts A and B: Number of Participants With Treatment Emergent Anti-Drug Antibodies (ADAs)
Time Frame: Baseline and Day 1 of Cycles 1 to 5; Day 1 of Cycle 7, and every 6 cycles thereafter (1 cycle is 14 days); study completion/discontinuation; safety follow-up visits (up to approximately 40.8 months - Part A and 45.4 months - Part B)
Participants were considered to be ADA positive if they were ADA negative at baseline but developed an ADA response following study drug administration (treatment-induced ADA response), or if they were ADA positive at baseline and the titer of one or more post-baseline samples was greater than the titer of the baseline sample by a scientifically reasonable margin such as at least 4-fold (treatment-enhanced ADA response).
Baseline and Day 1 of Cycles 1 to 5; Day 1 of Cycle 7, and every 6 cycles thereafter (1 cycle is 14 days); study completion/discontinuation; safety follow-up visits (up to approximately 40.8 months - Part A and 45.4 months - Part B)
Part B: Biomarkers: T-cell Proliferation/Activation in Peripheral Blood
Time Frame: Days 1, 2, and 8 of Cycles 1 and 5; Day 1 of Cycles 2, 3, and 9 (1 cycle is 14 days); study completion visit (28 days after last dose; up to 43.3 months); safety follow-up (SFU) (90 days after last dose; up to 45.4 months)
Biomarker analyses were performed using peripheral blood samples that were collected from participants in Part B of the study. The blood samples were assessed by flow cytometry for absolute counts of CD3⁺CD8⁺ T cells and proliferating CD3⁺CD8⁺Ki67⁺ T cells.
Days 1, 2, and 8 of Cycles 1 and 5; Day 1 of Cycles 2, 3, and 9 (1 cycle is 14 days); study completion visit (28 days after last dose; up to 43.3 months); safety follow-up (SFU) (90 days after last dose; up to 45.4 months)
Part B: Biomarkers: CD8+ T-cell Densities in Tumor Biopsies
Time Frame: At screening and Cycle 3 Day 1
Fresh tumor biopsies were collected from participants in Part B of the study to assess changes in T-cell infiltration and activation within the tumor microenvironment. Tumor tissue was evaluated for CD8⁺ T-cell densities. The tumor tissue samples were collected at screening (archival metastasis and archival primary samples) and during the study (fresh samples).
At screening and Cycle 3 Day 1
Parts A and B: Time to Maximum Observed Serum Concentration (Tmax) of Lomvastomig
Time Frame: Predose, half infusion, end of infusion (EOI), 0.5, 2, 4, and 8 hours postdose on Cycle 1 Day 1 and Cycle 5 Day 1, and on Cycles 1 and 5 Days 2, 3, 4, 5, 8, and 12, and predose on Day 1 of Cycles 2 and 6 (1 cycle = 14 days)
Predose, half infusion, end of infusion (EOI), 0.5, 2, 4, and 8 hours postdose on Cycle 1 Day 1 and Cycle 5 Day 1, and on Cycles 1 and 5 Days 2, 3, 4, 5, 8, and 12, and predose on Day 1 of Cycles 2 and 6 (1 cycle = 14 days)
Parts A and B: Maximum Observed Serum Concentration (Cmax) of Lomvastomig
Time Frame: Predose, half infusion, end of infusion (EOI), 0.5, 2, 4, and 8 hours postdose on Cycle 1 Day 1 and Cycle 5 Day 1, and on Cycles 1 and 5 Days 2, 3, 4, 5, 8, and 12, and predose on Day 1 of Cycles 2 and 6 (1 cycle = 14 days)
Predose, half infusion, end of infusion (EOI), 0.5, 2, 4, and 8 hours postdose on Cycle 1 Day 1 and Cycle 5 Day 1, and on Cycles 1 and 5 Days 2, 3, 4, 5, 8, and 12, and predose on Day 1 of Cycles 2 and 6 (1 cycle = 14 days)
Parts A and B: Maximum Observed Serum Concentration Dose Normalized (Cmax_D) of Lomvastomig
Time Frame: Predose, half infusion, end of infusion (EOI), 0.5, 2, 4, and 8 hours postdose on Cycle 1 Day 1 and Cycle 5 Day 1, and on Cycles 1 and 5 Days 2, 3, 4, 5, 8, and 12, and predose on Day 1 of Cycles 2 and 6 (1 cycle = 14 days)
Predose, half infusion, end of infusion (EOI), 0.5, 2, 4, and 8 hours postdose on Cycle 1 Day 1 and Cycle 5 Day 1, and on Cycles 1 and 5 Days 2, 3, 4, 5, 8, and 12, and predose on Day 1 of Cycles 2 and 6 (1 cycle = 14 days)
Parts A and B: Time to Last Non-zero Concentration (Tlast) of Lomvastomig
Time Frame: Predose, half infusion, end of infusion (EOI), 0.5, 2, 4, and 8 hours postdose on Cycle 1 Day 1 and Cycle 5 Day 1, and on Cycles 1 and 5 Days 2, 3, 4, 5, 8, and 12, and predose on Day 1 of Cycles 2 and 6 (1 cycle = 14 days)
For participants who experienced an adverse event (AE) following infusion with lomvastomig, a delay of the next administration for up to two cycles was acceptable to allow for resolution of toxicity to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) Grade 2 or lower for hematological toxicities or Grade 1 or lower for non-hematological toxicities (with the exception of a toxicity considered as not related to study drug). In the case of a delayed administration, the predose PK sample for Day 1 of Cycles 2 and/or 6 could have been collected up to 28 days after the end of the previous treatment cycle.
Predose, half infusion, end of infusion (EOI), 0.5, 2, 4, and 8 hours postdose on Cycle 1 Day 1 and Cycle 5 Day 1, and on Cycles 1 and 5 Days 2, 3, 4, 5, 8, and 12, and predose on Day 1 of Cycles 2 and 6 (1 cycle = 14 days)
Parts A and B: Last Non-zero Concentration (Clast) of Lomvastomig
Time Frame: Predose, half infusion, end of infusion (EOI), 0.5, 2, 4, and 8 hours postdose on Cycle 1 Day 1 and Cycle 5 Day 1, and on Cycles 1 and 5 Days 2, 3, 4, 5, 8, and 12, and predose on Day 1 of Cycles 2 and 6 (1 cycle = 14 days)
For participants who experienced an adverse event (AE) following infusion with lomvastomig, a delay of the next administration for up to two cycles was acceptable to allow for resolution of toxicity to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) Grade 2 or lower for hematological toxicities or Grade 1 or lower for non-hematological toxicities (with the exception of a toxicity considered as not related to study drug). In the case of a delayed administration, the predose PK sample for Day 1 of Cycles 2 and/or 6 could have been collected up to 28 days after the end of the previous treatment cycle.
Predose, half infusion, end of infusion (EOI), 0.5, 2, 4, and 8 hours postdose on Cycle 1 Day 1 and Cycle 5 Day 1, and on Cycles 1 and 5 Days 2, 3, 4, 5, 8, and 12, and predose on Day 1 of Cycles 2 and 6 (1 cycle = 14 days)
Parts A and B: Area Under the Curve From Dosing to Last Concentration (AUClast) of Lomvastomig
Time Frame: Predose, half infusion, end of infusion (EOI), 0.5, 2, 4, and 8 hours postdose on Cycle 1 Day 1 and Cycle 5 Day 1, and on Cycles 1 and 5 Days 2, 3, 4, 5, 8, and 12, and predose on Day 1 of Cycles 2 and 6 (1 cycle = 14 days)
For participants who experienced an adverse event (AE) following infusion with lomvastomig, a delay of the next administration for up to two cycles was acceptable to allow for resolution of toxicity to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) Grade 2 or lower for hematological toxicities or Grade 1 or lower for non-hematological toxicities (with the exception of a toxicity considered as not related to study drug). In the case of a delayed administration, the predose PK sample for Day 1 of Cycles 2 and/or 6 could have been collected up to 28 days after the end of the previous treatment cycle.
Predose, half infusion, end of infusion (EOI), 0.5, 2, 4, and 8 hours postdose on Cycle 1 Day 1 and Cycle 5 Day 1, and on Cycles 1 and 5 Days 2, 3, 4, 5, 8, and 12, and predose on Day 1 of Cycles 2 and 6 (1 cycle = 14 days)
Parts A and B: Area Under the Curve From Dosing to 336 Hours Post-dose (AUC0-336 Hrs) of Lomvastomig
Time Frame: Predose, half infusion, end of infusion (EOI), 0.5, 2, 4, and 8 hours postdose on Cycle 1 Day 1 and Cycle 5 Day 1, and on Cycles 1 and 5 Days 2, 3, 4, 5, 8, and 12, and predose on Day 1 of Cycles 2 and 6 (1 cycle = 14 days)
Predose, half infusion, end of infusion (EOI), 0.5, 2, 4, and 8 hours postdose on Cycle 1 Day 1 and Cycle 5 Day 1, and on Cycles 1 and 5 Days 2, 3, 4, 5, 8, and 12, and predose on Day 1 of Cycles 2 and 6 (1 cycle = 14 days)
Part A: Receptor Occupancy (RO) of Lomvastomig, Assessed Via an Ex-Vivo Assay
Time Frame: Predose and EOI: Day 1 of Cycles 1 and 5; Predose: Day 1 of Cycles 2, 3, and 9; Postdose: Day 8 of Cycles 1 and 5 (1 cycle is 14 days); study completion (28 days after last dose; up to 39.7 months); SFU (60 days after last dose; up to 40.8 months)
Blood samples were collected from participants in Part A of the study and different types of immune cells were assessed by flow cytometry for the percentage of receptor occupancy (RO) by lomvastomig. RO (or drug coverage) is used to quantify the binding of the therapeutic to its target on the cell surface. The RO of lomvastomig was determined on cells that were positive (+) for CD3+, CD4+, CD56+/16+, and CD8+.
Predose and EOI: Day 1 of Cycles 1 and 5; Predose: Day 1 of Cycles 2, 3, and 9; Postdose: Day 8 of Cycles 1 and 5 (1 cycle is 14 days); study completion (28 days after last dose; up to 39.7 months); SFU (60 days after last dose; up to 40.8 months)
Part B: Number of Participants With at Least One AE by Highest Severity, Graded According to the NCI CTCAE v5.0
Time Frame: From signing of informed consent form up to 90 days after last treatment administration (up to 46.2 months)
AE=any untoward medical occurrence in a participant administered a pharmaceutical product & which does not necessarily have a causal relationship with treatment & can therefore be any unfavorable & unintended sign (including abnormal laboratory values/abnormal clinical test results), symptoms/disease temporally associated with the use of pharmaceutical product, whether or not considered related to pharmaceutical product. Severity of AEs was graded as: Grade 1=Mild, asymptomatic/mild symptoms, clinical/diagnostic observations only, or intervention not indicated; Grade 2=Moderate, minimal, local/non-invasive intervention indicated, or limiting age-appropriate instrumental activities of daily living; Grade 3=Severe/medically significant but not immediately life-threatening, hospitalization/prolongation of hospitalization indicated; disabling; limiting self-care activities of daily living; Grade 4= Life-threatening consequences, urgent intervention indicated; Grade 5=Death related to AE.
From signing of informed consent form up to 90 days after last treatment administration (up to 46.2 months)
Part A: ORR as Determined by Investigator Using RECIST v1.1
Time Frame: Cycle 1 Day 1 then every 8 weeks for the first year; every 12 weeks thereafter until disease progression or treatment discontinuation (whichever occurs last), initiation of a new line of therapy or death (Up to 39.7 months) (Cycle length= 14 days)
ORR was defined as the percentage of participants with an objective tumor response of CR or PR as determined by the investigator using RECIST v.1.1. CR was defined as the disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) have a reduction in short axis to <10 mm. PR was defined as at least a 30% decrease in the SOD of target lesions, taking as reference the baseline SOD.
Cycle 1 Day 1 then every 8 weeks for the first year; every 12 weeks thereafter until disease progression or treatment discontinuation (whichever occurs last), initiation of a new line of therapy or death (Up to 39.7 months) (Cycle length= 14 days)
Part A: DCR as Determined by Investigator Using RECIST v1.1
Time Frame: Cycle 1 Day 1 then every 8 weeks for the first year; every 12 weeks thereafter until disease progression or treatment discontinuation (whichever occurs last), initiation of a new line of therapy or death (Up to 39.7 months) (Cycle length= 14 days)
DCR was defined as the percentage of participants with an objective tumor response of CR, PR or SD as determined by the investigator using RECIST v.1.1. CR was defined as the disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) have a reduction in short axis to <10 mm. PR was defined as at least a 30% decrease in the SOD of target lesions, taking as reference the baseline SOD. SD was defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest sum on the study including baseline (nadir). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm.
Cycle 1 Day 1 then every 8 weeks for the first year; every 12 weeks thereafter until disease progression or treatment discontinuation (whichever occurs last), initiation of a new line of therapy or death (Up to 39.7 months) (Cycle length= 14 days)
Part A: DOR as Determined by Investigator Using RECIST v1.1
Time Frame: From first occurrence of documented OR up to disease progression or death (Up to 39.7 months) (Cycle length= 14 days)
DOR was calculated for participants who had a best confirmed OR of CR/PR. DOR was defined as time from first occurrence of a documented OR until the time of documented PD or death from any cause, whichever occurs first as determined by investigator assessment using RECIST v1.1. CR=the disappearance of all target lesions or any pathological lymph nodes (whether target or non-target) having a reduction in short axis to <10 mm. PR=at least a 30% decrease in the SOD of target lesions, taking as reference the baseline SOD. PD=at least a 20% increase in the SOD of target lesions, taking as reference the smallest sum on the study including baseline (nadir). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. Data for participants without PD or death from any cause as of the data cut-off date were censored at the time of the last tumor assessment.
From first occurrence of documented OR up to disease progression or death (Up to 39.7 months) (Cycle length= 14 days)
Part A: PFS as Determined by Investigator Using RECIST v1.1
Time Frame: From initiation of study treatment (Cycle 1 Day 1) until disease progression or death (Up to 39.7 months) (Cycle length= 14 days)
PFS was defined as the time from study treatment initiation (Cycle 1 Day 1) to the first occurrence of documented PD, as determined by the investigator according to RECIST v1.1 or death from any cause, whichever occurs first. PD was defined as at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum in the study, including baseline, in addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. Data for participants without PD or death as of the data cut-off date were censored at the time of the last tumor assessment.
From initiation of study treatment (Cycle 1 Day 1) until disease progression or death (Up to 39.7 months) (Cycle length= 14 days)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Hoffmann-La Roche

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Clinical Trials, Hoffmann-La Roche

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 15, 2018

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 9, 2024

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 9, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 9, 2018

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 12, 2018

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 17, 2018

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 20, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 5, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • NP40435
  • 2018-000982-35 (EudraCT Number)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Qualified researchers may request access to individual patient level data through the request platform (www.vivli.org). Further details on Roche's criteria for eligible studies are available here (https://vivli.org/ourmember/roche/).

For further details on Roche's Global Policy on Sharing of Clinical Study Information and how to request access to related clinical study documents, see here (https://www.roche.com/research_and_development/who_we_are_how_we_work/clinical_trials/our_commitment_to_data_sharing.htm).

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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Conditions

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Drug Interventions

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Locations

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