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Trial · NCT03396445

Registered outcomes13

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

ListOutcomeTime frameDescription
PrimaryNumber of Participants Who Experienced a Dose-Limiting Toxicity (DLT)Up to 21 days in Cycle 1
DLTs were assessed using the National Cancer Institute Common Terminology Criteria for Adverse Events version 5. A DLT was defined as any of the following events: Grade 4 nonhematologic toxicity; Grade 4 hematologic toxicity lasting ≥7 days, except thrombocytopenia; Grade 4 thrombocytopenia; Grade 3 thrombocytopenia requiring a platelet transfusion; Nonhematologic adverse event (AE) Grade ≥3, with exceptions; Grade 3 or 4 nonhematologic laboratory abnormality; Prolonged delay (\>2 weeks) in initiating Cycle 2 due to treatment-related toxicity; Treatment-related toxicity resulting in study drug discontinuation during the DLT evaluation period; Missing \>25% of any study drug during the DLT evaluation period due to a treatment-related AE; or Grade 5 toxicity. The number of participants who experienced one or more DLTs is reported.
PrimaryNumber of Participants With One or More AEsUp to approximately 78 months
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The number of participants who experienced one or more AEs is reported.
PrimaryNumber of Participants Who Discontinued Study Treatment Due to an AEUp to 23 months
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The number of participants who discontinued study treatment due to an AE is reported.
SecondaryArea Under the Concentration-Time Curve From Time 0 to Last Quantifiable Concentration (AUC0-last) of BoserolimabPredose Day 1 Cycle 1 and at designated timepoints up to Day 1 Cycle 2
AUC0-last was defined as the area under the concentration versus time curve for boserolimab from 0 to the time of the last quantifiable concentration in serum. Samples were taken predose and at specified times postdose to determine the AUC0-last of boserolimab. PK collection time frames include: Arms 1, 2 (Cycle = 3 weeks): Predose, at start \& end of infusion on Day 1 Cycle 1, Days 2, 3, 5, 8, 15 of Cycle 1, and predose on Day 1 of Cycle 2; Arms 1a, 2a, 2b, 3 (Cycle = 3 weeks): Predose, at start \& end of infusion on Day 1 Cycle 1, Days 2, 3, 8, 15 of Cycle 1, and predose on Day 1 of Cycle 2; Arms 2c and 4 (Cycle = 6 weeks): Predose, at start \& end of infusion on Day 1 Cycle 1, Days 2, 3, 8, 15, 22 of Cycle 1, and predose on Day 1 of Cycle 2.
SecondaryArea Under the Concentration-Time Curve From Time 0 to 3 Weeks (AUC0-3w) of BoserolimabPredose Day 1 Cycle 1 and at designated timepoints up to Day 1 Cycle 2
AUC0-3w was defined as the area under the concentration versus time curve for boserolimab from 0 to 3 weeks in serum. Samples were taken predose and at specified times postdose to determine the AUC0-3w of boserolimab. PK collection time frames include: Arms 1, 2 (Cycle = 3 weeks): Predose, at start \& end of infusion on Day 1 Cycle 1, Days 2, 3, 5, 8, 15 of Cycle 1, and predose on Day 1 of Cycle 2; Arms 1a, 2a, 2b, 3 (Cycle = 3 weeks): Predose, at start \& end of infusion on Day 1 Cycle 1, Days 2, 3, 8, 15 of Cycle 1, and predose on Day 1 of Cycle 2; Arms 2c and 4 (Cycle = 6 weeks): Predose, at start \& end of infusion on Day 1 Cycle 1, Days 2, 3, 8, 15, 22 of Cycle 1.
SecondaryArea Under the Concentration-Time Curve From Time 0 to 6 Weeks (AUC0-6w) of BoserolimabArms 2c and 4 (Cycle = 6 weeks): Predose, at start & end of infusion on Day 1 Cycle 1, Days 2, 3, 8, 15, 22 of Cycle 1, and predose on Day 1 Cycle 2
AUC0-6w was defined as the area under the concentration versus time curve for boserolimab from 0 to 6 weeks in serum. Samples were taken predose and at specified times postdose to determine the AUC0-6w of boserolimab. As pre-specified in the protocol, different arms had different sampling schedules and cycle lengths and therefore AUC0-6w was not analyzed for all Arms; AUC0-6w was only analyzed for Arms 2c and 4 which had 6-week cycles.
SecondaryMinimum Concentration (Cmin) of BoserolimabPredose Day 1 Cycle 1 and at designated timepoints up to Day 1 Cycle 2
Cmin of boserolimab was defined as the minimum concentration of boserolimab observed in serum. Samples were taken predose and at specified times postdose to determine the Cmin of boserolimab. PK collection time frames include: Arms 1, 2 (Cycle = 3 weeks): Predose, at start \& end of infusion on Day 1 Cycle 1, Days 2, 3, 5, 8, 15 of Cycle 1, and predose on Day 1 of Cycle 2; Arms 1a, 2a, 2b, 3 (Cycle = 3 weeks): Predose, at start \& end of infusion on Day 1 Cycle 1, Days 2, 3, 8, 15 of Cycle 1, and predose on Day 1 of Cycle 2; Arms 2c and 4 (Cycle = 6 weeks): Predose, at start \& end of infusion on Day 1 Cycle 1, Days 2, 3, 8, 15, 22 of Cycle 1, and predose on Day 1 of Cycle 2.
SecondaryMaximum Concentration (Cmax) of BoserolimabPredose Day 1 Cycle 1 and at designated timepoints up to Day 1 Cycle 2
Cmax of boserolimab was defined as the maximum concentration of boserolimab observed in serum. Samples were taken predose and at specified times postdose to determine the Cmax of boserolimab. PK collection time frames include: Arms 1, 2 (Cycle = 3 weeks): Predose, at start \& end of infusion on Day 1 Cycle 1, Days 2, 3, 5, 8, 15 of Cycle 1, and predose on Day 1 of Cycle 2; Arms 1a, 2a, 2b, 3 (Cycle = 3 weeks): Predose, at start \& end of infusion on Day 1 Cycle 1, Days 2, 3, 8, 15 of Cycle 1, and predose on Day 1 of Cycle 2; Arms 2c and 4 (Cycle = 6 weeks): Predose, at start \& end of infusion on Day 1 Cycle 1, Days 2, 3, 8, 15, 22 of Cycle 1, and predose on Day 1 of Cycle 2.
SecondaryObjective Response Rate (ORR) as Assessed by Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1)Up to approximately 78 months
ORR was defined as the percentage of participants who had a Complete Response (CR: disappearance of all target lesions) or a Partial Response (PR: at least a 30% decrease in the sum of diameters of target lesions) as assessed using RECIST 1.1. As pre-specified in the protocol, ORR was analyzed for participants treated with boserolimab when used as monotherapy in Arm 1a, in combination with pembrolizumab in Switch-over Arm 1a and Arms 2a, 2b, and 2c, or in combination with pembrolizumab + nab-paclitaxel in Arm 4. Per protocol, ORR was not analyzed in Arms 1, 2, or 3. The percentage of participants who experienced a CR or PR, as assessed by the investigator, is reported.
SecondaryArm 3: Number of Participants Who Experienced a DLTUp to 21 days in Cycle 1
DLTs were assessed using the National Cancer Institute Common Terminology Criteria for Adverse Events version 5. A DLT was defined as any of the following events: Grade 4 nonhematologic toxicity; Grade 4 hematologic toxicity lasting ≥7 days, except thrombocytopenia; Grade 4 thrombocytopenia; Grade 3 thrombocytopenia requiring a platelet transfusion; Nonhematologic adverse event (AE) Grade ≥3, with exceptions; Grade 3 or 4 nonhematologic laboratory abnormality; Prolonged delay (\>2 weeks) in initiating Cycle 2 due to treatment-related toxicity; Treatment-related toxicity resulting in study drug discontinuation during the DLT evaluation period; Missing \>25% of any study drug during the DLT evaluation period due to a treatment-related AE; or Grade 5 toxicity. The number of participants who experienced one or more DLTs in Arm 3 is reported
SecondaryArm 4: Number of Participants Who Experienced a DLTUp to 28 days in Cycle 1
DLTs were assessed using the National Cancer Institute Common Terminology Criteria for Adverse Events version 5. A DLT was defined as any of the following events: Grade 4 nonhematologic toxicity; Grade 4 hematologic toxicity lasting ≥7 days, except thrombocytopenia; Grade 4 thrombocytopenia; Grade 3 thrombocytopenia requiring a platelet transfusion; Nonhematologic adverse event (AE) Grade ≥3, with exceptions; Grade 3 or 4 nonhematologic laboratory abnormality; Prolonged delay (\>2 weeks) in initiating Cycle 2 due to treatment-related toxicity; Treatment-related toxicity resulting in study drug discontinuation during the DLT evaluation period; Missing \>25% of any study drug during the DLT evaluation period due to a treatment-related AE; or Grade 5 toxicity. The number of participants who experienced one or more DLTs in Arm 4 is reported.
SecondaryArm 3 and 4: Number of Participants With One or More AEsUp to 57 months
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The number of participants in Arms 3 and 4 who experienced one or more AEs is reported.
SecondaryArm 3 and 4: Number of Participants Who Discontinued Study Treatment Due to an AEUp to 27 months
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The number of participants in Arms 3 or 4 who discontinued study treatment due to an AE is reported.

Source ClinicalTrials.govtrials-2026-11-12-0.5.0

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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