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Trial · NCT04504916

A Study of Zilovertamab Vedotin (MK-2140/VLS-101) in Participants With Solid Tumors (MK-2140-002)

NCT04504916, Phase 2, Terminated, VelosBio Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA); results first posted 2024-08-15

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. A Study of Zilovertamab Vedotin (MK-2140/VLS-101) in Participants With Solid Tumors (MK-2140-002). Trials, record NCT04504916. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT04504916

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Trial

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

Title
A Study of Zilovertamab Vedotin (MK-2140/VLS-101) in Participants With Solid Tumors (MK-2140-002)
NCT number
NCT04504916
Status
Terminated
Phases
Phase 2
Enrollment
102 participants, actual
Lead sponsor
VelosBio Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
Conditions
Triple-negative Breast Cancer, Non-squamous Non-small-cell Lung Cancer, NSCLC, Estrogen-receptor-positive Breast Cancer, Progesterone-receptor-positive Breast Cancer, Estrogen-receptor-negative Breast Cancer, ER-negative Breast Cancer, Progesterone-receptor Negative Breast Cancer, PR-negative Breast Cancer, HER2-negative Breast Cancer, ER-positive Breast Cancer, PR-positive Breast Cancer, Platinum-resistant Ovarian Cancer, Gastric Cancer, Pancreatic Cancer
Interventions
Zilovertamab vedotin
First posted
2020-08-07
Last updated
2025-11-10
Results first posted
2024-08-15
Limitations and caveats
Study terminated due to business reasons

Source ClinicalTrials.gov

Registered outcomes27

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

ListOutcomeTime frameDescription
PrimaryObjective Response Rate (ORR)- Blinded Independent Central Review (BICR)Up to ~18 months
The percentage of participants who achieved a Complete Response (CR: disappearance of all target lesions) or Partial Response (PR: a ≥30% decrease in the sum of diameters \[SOD\] of target lesions) using per Response Evaluation Criteria in Solid Tumors (RECIST), Version 1.1 by BICR was reported.
SecondaryORR- Investigator AssessedUp to ~18 months
The percentage of participants who achieved a CR (disappearance of all target lesions) or PR (≥30% decrease in the sum of diameters \[SOD\] of target lesions) per RECIST, Version 1.1 by investigator was reported.
SecondaryTime to Response (TTR)- BICRUp to ~30 monthsTTR, defined as the time from the start of study treatment to the first documentation of objective tumor response per RECIST, Version 1.1 by BICR was reported.
SecondaryDuration of Response (DOR)- BICRUp to ~30 months
DOR, defined as the interval from the first documentation of objective tumor response to the earlier of the first documentation of disease progression or death from any cause per RECIST, Version 1.1 by BICR was reported.
SecondaryProgression-free Survival (PFS)- BICRUp to ~30 monthsPFS, defined as the interval from the start of study treatment to the earlier of the first documentation of disease progression or death from any cause per RECIST, Version 1.1 by BICR was reported.
SecondaryTime to Treatment Failure (TTF)- BICRUp to ~30 months
TTF, defined as the time from the start of study treatment to the earliest of the first documentation of disease progression, the permanent cessation of study drug due to an AE, or death from any cause per RECIST, Version 1.1 by BICR was reported.
SecondaryOverall Survival (OS)Up to ~30 monthsOS, defined as the interval from the start of study treatment to death from any cause will be reported.
SecondaryNumber of Participants Who Experienced an Adverse Event (AE)Up to ~30 months
An AE was any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the medicinal product or protocol-specified procedure. Any worsening of a preexisting condition that was temporally associated with the use of the Sponsor's product, was also an AE. The number of participants who experienced an AE was reported.
SecondaryNumber of Participants Who Discontinued Study Treatment Due to an AEUp to ~11 months
An AE was any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the medicinal product or protocol-specified procedure. Any worsening of a preexisting condition that was temporally associated with the use of the Sponsor's product, was also an AE. The number of participants who discontinued study treatment due to an AE was reported.
SecondaryMaximum Plasma Concentration (Cmax) of Zilovertamab Vedotin-Q1/3W Dosing ScheduleDay 1 [(predose; end of infusion (EOI); and 2 and 4 hours after EOI)], Day 8 (168 hr), Day 15 (336 hr), and Cycle 2 Day 1 (predose); each cycle=21 days
Cmax of zilovertamab vedotin determined by blood samples collected pre-dose and at designated timepoints post-dose were reported. Per protocol the Zilovertamab vedotin Q2/3W Dosing Group was not included in this analysis.

Outcomes27

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYObjective Response Rate (ORR)- Blinded Independent Central Review (BICR)Up to ~18 monthsFull Analysis Set (FAS) which included all participants who received ≥1 dose of study drugPercentage of ParticipantsNUMBER
SECONDARYORR- Investigator AssessedUp to ~18 monthsFAS which included all participants who received ≥1 dose of study drugPercentage of ParticipantsNUMBER
SECONDARYTime to Response (TTR)- BICRUp to ~30 months
Responding Analysis Set which included data from participants in the FAS who had measurable disease, who could be evaluated for tumor response with both baseline and on-study tumor evaluations, and who achieved an objective response.
MonthsMEAN
SECONDARYDuration of Response (DOR)- BICRUp to ~30 months
Responding Analysis Set which included data from participants in the FAS who had measurable disease, who could be evaluated for tumor response with both baseline and on-study tumor evaluations, and who achieved an objective response.
MonthsMEDIAN
SECONDARYProgression-free Survival (PFS)- BICRUp to ~30 monthsFAS which included all participants who received ≥1 dose of study drugMonthsMEDIAN
SECONDARYTime to Treatment Failure (TTF)- BICRUp to ~30 monthsFAS which included all participants who received ≥1 dose of study drugMonthsMEDIAN
SECONDARYOverall Survival (OS)Up to ~30 monthsFAS which included all participants who received ≥1 dose of study drugMonthsMEDIAN
SECONDARYNumber of Participants Who Experienced an Adverse Event (AE)Up to ~30 monthsFAS which included all participants who received ≥1 dose of study drugParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants Who Discontinued Study Treatment Due to an AEUp to ~11 monthsFAS which included all participants who received ≥1 dose of study drugParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYMaximum Plasma Concentration (Cmax) of Zilovertamab Vedotin-Q1/3W Dosing ScheduleDay 1 [(predose; end of infusion (EOI); and 2 and 4 hours after EOI)], Day 8 (168 hr), Day 15 (336 hr), and Cycle 2 Day 1 (predose); each cycle=21 daysEvaluable Analysis Set which included participants in the FAS who had the necessary baseline and on-study measurements to provide interpretable results for specific parameters of interest.μg/mLGEOMETRIC_MEAN

Results by group34

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

OutcomeGroupCategoryValueSpreadUnits
Objective Response Rate (ORR)- Blinded Independent Central Review (BICR)Zilovertamab Vedotin Q1/3W1.495% Confidence Interval 0.0 to 7.7Percentage of Participants
Objective Response Rate (ORR)- Blinded Independent Central Review (BICR)Zilovertamab Vedotin Q2/3W0.095% Confidence Interval NA to NAPercentage of Participants
ORR- Investigator AssessedZilovertamab Vedotin Q1/3W1.495% Confidence Interval 0.0 to 7.7Percentage of Participants
ORR- Investigator AssessedZilovertamab Vedotin Q2/3W0.095% Confidence Interval NA to NAPercentage of Participants
Time to Response (TTR)- BICRZilovertamab Vedotin Q1/3W1.9Standard Deviation NAMonths
Duration of Response (DOR)- BICRZilovertamab Vedotin Q1/3W195% Confidence Interval NA to NAMonths
Progression-free Survival (PFS)- BICRZilovertamab Vedotin Q1/3W2.395% Confidence Interval 2.0 to 4.1Months
Progression-free Survival (PFS)- BICRZilovertamab Vedotin Q2/3W1.995% Confidence Interval 1.7 to 2.1Months
Time to Treatment Failure (TTF)- BICRZilovertamab Vedotin Q1/3W2.295% Confidence Interval 1.9 to 4.1Months
Time to Treatment Failure (TTF)- BICRZilovertamab Vedotin Q2/3W1.995% Confidence Interval 1.7 to 2.1Months

Participant flow6

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDZilovertamab Vedotin Q1/3W70
Overall StudySTARTEDZilovertamab Vedotin Q2/3W32
Overall StudyCOMPLETEDZilovertamab Vedotin Q1/3W0
Overall StudyCOMPLETEDZilovertamab Vedotin Q2/3W0
Overall StudyNOT COMPLETEDZilovertamab Vedotin Q1/3W70
Overall StudyNOT COMPLETEDZilovertamab Vedotin Q2/3W32

Adverse events238

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherEosinophiliaBlood and lymphatic system disordersZilovertamab Vedotin Q1/3W0700
otherEosinophiliaBlood and lymphatic system disordersZilovertamab Vedotin Q2/3W2324
otherSinus tachycardiaCardiac disordersZilovertamab Vedotin Q1/3W1701
otherSinus tachycardiaCardiac disordersZilovertamab Vedotin Q2/3W2323
otherAbdominal distensionGastrointestinal disordersZilovertamab Vedotin Q1/3W3704
otherAbdominal distensionGastrointestinal disordersZilovertamab Vedotin Q2/3W4324
otherAbdominal painGastrointestinal disordersZilovertamab Vedotin Q1/3W137022
otherAbdominal painGastrointestinal disordersZilovertamab Vedotin Q2/3W4325
otherConstipationGastrointestinal disordersZilovertamab Vedotin Q1/3W157016
otherConstipationGastrointestinal disordersZilovertamab Vedotin Q2/3W6327

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityZilovertamab Vedotin Q1/3W5470
Total, all-cause mortalityZilovertamab Vedotin Q2/3W1832
Total, other adverse eventsZilovertamab Vedotin Q1/3W6670
Total, other adverse eventsZilovertamab Vedotin Q2/3W3032
Total, serious adverse eventsZilovertamab Vedotin Q1/3W2970
Total, serious adverse eventsZilovertamab Vedotin Q2/3W1632

Papers2

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
34398557DERIVEDPubMed
40762544RESULTPubMed

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 comparisons4

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

ComparisonSource
Zilovertamab Vedotin Q1/3W vs Zilovertamab Vedotin Q2/3W: Number of Participants Who Experienced an Adverse Event (AE)Trial comparisons
Zilovertamab Vedotin Q1/3W vs Zilovertamab Vedotin Q2/3W: Number of Participants Who Discontinued Study Treatment Due to an AETrial comparisons
Zilovertamab Vedotin Q1/3W vs Zilovertamab Vedotin Q2/3W: deaths from any causeTrial comparisons
Zilovertamab Vedotin Q1/3W vs Zilovertamab Vedotin Q2/3W: serious adverse eventsTrial comparisons

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.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT04504916

GET https://conductscience.org/api/trials/v1/NCT04504916/registered?page=2