Skip to content

Study of Dalotuzumab (MK-0646) in Adults With Solid Tumors (MK-0646-009)

A Phase I Study of MK-0646 in Patients With Relapsed or Refractory Locally Advanced or Metastatic Solid Tumors

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00694356
Enrollment
15
Registered
2008-06-10
Start date
2008-08-04
Completion date
2009-04-28
Last updated
2018-08-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Neoplasm

Brief summary

This clinical study evaluates the safety, tolerability, pharmacokinetics, and immunogenicity of dalotuzumab (MK-0646) in participants with relapsed or refractory locally advanced or metastatic solid tumors using once weekly and once every other week dose infusion regimens. The primary study hypothesis is that administration of dalotuzumab as a once weekly and an every other week infusion will be generally safe and well tolerated

Interventions

BIOLOGICALDalotuzumab

IV infusion

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
20 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Has histologically- or cytologically-confirmed metastatic or locally advanced solid tumor(s) that has (have) failed to respond to standard therapy, or for which adequate standard therapy does not exist * Has tumor(s) associated with insulin-like growth factor 1 receptor (IGF-1R) expression in the literature (e.g. prostate, pancreatic, colon, lung and breast) * Has Eastern Cooperative Oncology Group (ECOG) Performance Status 0 or 1 * Demonstrates adequate organ function

Exclusion criteria

* Has had chemotherapy, radiotherapy, or biological therapy within 4 weeks (6 weeks for nitrosoureas or mitomycin C) prior to registration * Is concurrently using growth hormone (GH), or growth hormone inhibitor * Has any active central nervous system (CNS) metastases and/or carcinomatous meningitis * Has any primary CNS tumor - any symptomatic ascites or plural effusion * Has a history or current evidence of any clinically significant disease that might confound the results of the study, complicate the interpretation of the study results, interfere with the participant's participation, or pose an additional risk to the participant * Is pregnant or breast-feeding

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants Who Experienced a Dose-limiting Toxicity (DLT)Cycle 1 (Up to 4 weeks)Toxicity was graded and recorded according to National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 3.0. DLTs were defined as the occurrence of any of the following events when judged to be related to the study medication: Grade 4 neutropenia; Grade 3 neutropenia with fever \>38.5°C; Grade 4 thrombocytopenia; Grade 3 or Grade 4 non-hematologic toxicity, except alopecia and inadequately treated diarrhea, nausea and vomiting. The number of participants who experienced a DLT is presented.
Number of Participants Who Experienced an Adverse Event (AE)Up to 30 days after last dose of study treatment (Up to 101 days)An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the study treatment, whether or not considered related to the use of study treatment. Any worsening (i.e. any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition which was temporally associated with the use of study treatment, was also an AE. The number of participants who experienced at least one AE is presented.
Number of Participants Who Discontinued Study Treatment Due to an AEUp to 71 daysAn AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the study treatment, whether or not considered related to the use of study treatment. Any worsening (i.e. any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition which was temporally associated with the use of study treatment, was also an AE. The number of participants who discontinued study treatment due to an AE is presented.

Secondary

MeasureTime frameDescription
Maximum Plasma Concentration (Cmax) of DalotuzumabPre-dose, 0.5 h after start of infusion, end of infusion, 5, 10, 24, 30, 48 and 96 and 168 h post-doseCmax was assessed on Week 2 (Day 8) for the Dalotuzumab 5 mg/kg and Dalotuzumab 10 mg/kg treatment groups and on Week 3 (Day 15) for the Dalotuzumab 15 mg/kg/7.5 mg/kg treatment group.
Area Under the Concentration-Time Curve From Zero to Infinity (AUC0-∞) of DalotuzumabPre-dose, 0.5 h after start of infusion, end of infusion, 5, 10, 24, 30, 48 and 96 and 168 h post-doseAUC0-∞ was assessed on Week 2 (Day 8) for the Dalotuzumab 5 mg/kg and Dalotuzumab 10 mg/kg treatment groups and on Week 3 (Day 15) for the Dalotuzumab 15 mg/kg/7.5 mg/kg treatment group.
Time to Cmax (Tmax) of DalotuzumabPre-dose, 0.5 h after start of infusion, end of infusion, 5, 10, 24, 30, 48 and 96 and 168 h post-doseTmax was assessed on Week 2 (Day 8) for the Dalotuzumab 5 mg/kg and Dalotuzumab 10 mg/kg treatment groups and on Week 3 (Day 15) for the Dalotuzumab 15 mg/kg/7.5 mg/kg treatment group.
Apparent Terminal Half-life (t1/2) of DalotuzumabPre-dose, 0.5 h after start of infusion, end of infusion, 5, 10, 24, 30, 48 and 96 and 168 h post-doset1/2 was assessed on Week 2 (Day 8) for the Dalotuzumab 5 mg/kg and Dalotuzumab 10 mg/kg treatment groups and on Week 3 (Day 15) for the Dalotuzumab 15 mg/kg/7.5 mg/kg treatment group.
Clearance (CL) of DalotuzumabPre-dose, 0.5 h after start of infusion, end of infusion, 5, 10, 24, 30, 48 and 96 and 168 h post-doseCL of dalotuzumab was assessed on Week 2 (Day 8) for the Dalotuzumab 5 mg/kg and Dalotuzumab 10 mg/kg treatment groups and on Week 3 (Day 15) for the Dalotuzumab 15 mg/kg/7.5 mg/kg treatment group.
Steady State Volume of Distribution (Vss) of DalotuzumabPre-dose, 0.5 h after start of infusion, end of infusion, 5, 10, 24, 30, 48 and 96 and 168 h post-doseVss was assessed on Week 2 (Day 8) for the Dalotuzumab 5 mg/kg and Dalotuzumab 10 mg/kg treatment groups and on Week 3 (Day 15) for the Dalotuzumab 15 mg/kg/7.5 mg/kg treatment group.
Number of Participants Who Developed a Human Anti-Humanized Antibody (HAHA) Response to DalotuzumabCycle 1: predose on Days 1, 8, 15, and 22; Cycles 2 and 3: predose on Day 1; 4 weeks after last dose of study drugFormation of HAHAs may block efficacy by substantially increasing the clearance of dalotuzumab and limit the possibility of future dalotuzumab therapy. The occurrence of HAHAs in the sera of dalotuzumab treated participants at any of the serum collection times was assessed.

Participant flow

Participants by arm

ArmCount
Dalotuzumab 5 mg/kg
Participants receive dalotuzumab 5 mg/kg by IV infusion once each week for up to 1 year or until participant withdraws consent, experiences an AE, progressive disease or major protocol violation, has moved or is lost to follow up.
3
Dalotuzumab 10 mg/kg
Participants receive dalotuzumab 10 mg/kg by IV infusion once each week for up to 1 year or until participant withdraws consent, experiences an AE, progressive disease or major protocol violation, has moved or is lost to follow up.
6
Dalotuzumab 15 mg/kg/7.5 mg/kg
Participants receive an initial dose of dalotuzumab 15 mg/kg by IV infusion followed by a maintenance dose of dalotuzumab 7.5 mg/kg by IV infusion once every 2 weeks for up to 1 year or until participant withdraws consent, experiences an AE, progressive disease or major protocol violation, has moved or is lost to follow up.
6
Total15

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event100
Overall StudyProgressive Disease266

Baseline characteristics

CharacteristicDalotuzumab 5 mg/kgDalotuzumab 10 mg/kgDalotuzumab 15 mg/kg/7.5 mg/kgTotal
Age, Continuous66.3 Years
STANDARD_DEVIATION 1.5
63.5 Years
STANDARD_DEVIATION 3.9
59.2 Years
STANDARD_DEVIATION 14.2
62.3 Years
STANDARD_DEVIATION 9.3
Sex: Female, Male
Female
0 Participants2 Participants2 Participants4 Participants
Sex: Female, Male
Male
3 Participants4 Participants4 Participants11 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
3 / 36 / 66 / 6
serious
Total, serious adverse events
0 / 31 / 60 / 6

Outcome results

Primary

Number of Participants Who Discontinued Study Treatment Due to an AE

An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the study treatment, whether or not considered related to the use of study treatment. Any worsening (i.e. any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition which was temporally associated with the use of study treatment, was also an AE. The number of participants who discontinued study treatment due to an AE is presented.

Time frame: Up to 71 days

Population: The population consisted of all participants who received at least one dose of study treatment.

ArmMeasureValue (NUMBER)
Dalotuzumab 5 mg/kgNumber of Participants Who Discontinued Study Treatment Due to an AE1 Participants
Dalotuzumab 10 mg/kgNumber of Participants Who Discontinued Study Treatment Due to an AE0 Participants
Dalotuzumab 15 mg/kg/7.5 mg/kgNumber of Participants Who Discontinued Study Treatment Due to an AE0 Participants
Primary

Number of Participants Who Experienced a Dose-limiting Toxicity (DLT)

Toxicity was graded and recorded according to National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 3.0. DLTs were defined as the occurrence of any of the following events when judged to be related to the study medication: Grade 4 neutropenia; Grade 3 neutropenia with fever \>38.5°C; Grade 4 thrombocytopenia; Grade 3 or Grade 4 non-hematologic toxicity, except alopecia and inadequately treated diarrhea, nausea and vomiting. The number of participants who experienced a DLT is presented.

Time frame: Cycle 1 (Up to 4 weeks)

Population: The population consisted of all participants who received at least one dose of study treatment.

ArmMeasureValue (NUMBER)
Dalotuzumab 5 mg/kgNumber of Participants Who Experienced a Dose-limiting Toxicity (DLT)0 Participants
Dalotuzumab 10 mg/kgNumber of Participants Who Experienced a Dose-limiting Toxicity (DLT)0 Participants
Dalotuzumab 15 mg/kg/7.5 mg/kgNumber of Participants Who Experienced a Dose-limiting Toxicity (DLT)0 Participants
Primary

Number of Participants Who Experienced an Adverse Event (AE)

An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the study treatment, whether or not considered related to the use of study treatment. Any worsening (i.e. any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition which was temporally associated with the use of study treatment, was also an AE. The number of participants who experienced at least one AE is presented.

Time frame: Up to 30 days after last dose of study treatment (Up to 101 days)

Population: The population consisted of all participants who received at least one dose of study treatment.

ArmMeasureValue (NUMBER)
Dalotuzumab 5 mg/kgNumber of Participants Who Experienced an Adverse Event (AE)3 Participants
Dalotuzumab 10 mg/kgNumber of Participants Who Experienced an Adverse Event (AE)6 Participants
Dalotuzumab 15 mg/kg/7.5 mg/kgNumber of Participants Who Experienced an Adverse Event (AE)6 Participants
Secondary

Apparent Terminal Half-life (t1/2) of Dalotuzumab

t1/2 was assessed on Week 2 (Day 8) for the Dalotuzumab 5 mg/kg and Dalotuzumab 10 mg/kg treatment groups and on Week 3 (Day 15) for the Dalotuzumab 15 mg/kg/7.5 mg/kg treatment group.

Time frame: Pre-dose, 0.5 h after start of infusion, end of infusion, 5, 10, 24, 30, 48 and 96 and 168 h post-dose

Population: The population consisted of all participants who had PK measurements at Baseline and at least once during treatment.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Dalotuzumab 5 mg/kgApparent Terminal Half-life (t1/2) of Dalotuzumab129.85 hGeometric Coefficient of Variation 12.44
Dalotuzumab 10 mg/kgApparent Terminal Half-life (t1/2) of Dalotuzumab110.36 hGeometric Coefficient of Variation 20.18
Dalotuzumab 15 mg/kg/7.5 mg/kgApparent Terminal Half-life (t1/2) of Dalotuzumab167.09 hGeometric Coefficient of Variation 20.94
Secondary

Area Under the Concentration-Time Curve From Zero to Infinity (AUC0-∞) of Dalotuzumab

AUC0-∞ was assessed on Week 2 (Day 8) for the Dalotuzumab 5 mg/kg and Dalotuzumab 10 mg/kg treatment groups and on Week 3 (Day 15) for the Dalotuzumab 15 mg/kg/7.5 mg/kg treatment group.

Time frame: Pre-dose, 0.5 h after start of infusion, end of infusion, 5, 10, 24, 30, 48 and 96 and 168 h post-dose

Population: The population consisted of all participants who had PK measurements at Baseline and at least once during treatment.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Dalotuzumab 5 mg/kgArea Under the Concentration-Time Curve From Zero to Infinity (AUC0-∞) of Dalotuzumab11.72 mg*h/mLGeometric Coefficient of Variation 10.06
Dalotuzumab 10 mg/kgArea Under the Concentration-Time Curve From Zero to Infinity (AUC0-∞) of Dalotuzumab21.71 mg*h/mLGeometric Coefficient of Variation 37.64
Dalotuzumab 15 mg/kg/7.5 mg/kgArea Under the Concentration-Time Curve From Zero to Infinity (AUC0-∞) of Dalotuzumab38.99 mg*h/mLGeometric Coefficient of Variation 21.27
Secondary

Clearance (CL) of Dalotuzumab

CL of dalotuzumab was assessed on Week 2 (Day 8) for the Dalotuzumab 5 mg/kg and Dalotuzumab 10 mg/kg treatment groups and on Week 3 (Day 15) for the Dalotuzumab 15 mg/kg/7.5 mg/kg treatment group.

Time frame: Pre-dose, 0.5 h after start of infusion, end of infusion, 5, 10, 24, 30, 48 and 96 and 168 h post-dose

Population: The population consisted of all participants who had PK measurements at Baseline and at least once during treatment.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Dalotuzumab 5 mg/kgClearance (CL) of Dalotuzumab0.0071 mL/min/kgGeometric Coefficient of Variation 10.06
Dalotuzumab 10 mg/kgClearance (CL) of Dalotuzumab0.0077 mL/min/kgGeometric Coefficient of Variation 37.64
Dalotuzumab 15 mg/kg/7.5 mg/kgClearance (CL) of Dalotuzumab0.0064 mL/min/kgGeometric Coefficient of Variation 21.27
Secondary

Maximum Plasma Concentration (Cmax) of Dalotuzumab

Cmax was assessed on Week 2 (Day 8) for the Dalotuzumab 5 mg/kg and Dalotuzumab 10 mg/kg treatment groups and on Week 3 (Day 15) for the Dalotuzumab 15 mg/kg/7.5 mg/kg treatment group.

Time frame: Pre-dose, 0.5 h after start of infusion, end of infusion, 5, 10, 24, 30, 48 and 96 and 168 h post-dose

Population: The population consisted of all participants who had pharmacokinetic (PK) measurements at Baseline and at least once during treatment.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Dalotuzumab 5 mg/kgMaximum Plasma Concentration (Cmax) of Dalotuzumab85.60 µg/mLGeometric Coefficient of Variation 6.94
Dalotuzumab 10 mg/kgMaximum Plasma Concentration (Cmax) of Dalotuzumab161.78 µg/mLGeometric Coefficient of Variation 23.02
Dalotuzumab 15 mg/kg/7.5 mg/kgMaximum Plasma Concentration (Cmax) of Dalotuzumab244.05 µg/mLGeometric Coefficient of Variation 11.57
Secondary

Number of Participants Who Developed a Human Anti-Humanized Antibody (HAHA) Response to Dalotuzumab

Formation of HAHAs may block efficacy by substantially increasing the clearance of dalotuzumab and limit the possibility of future dalotuzumab therapy. The occurrence of HAHAs in the sera of dalotuzumab treated participants at any of the serum collection times was assessed.

Time frame: Cycle 1: predose on Days 1, 8, 15, and 22; Cycles 2 and 3: predose on Day 1; 4 weeks after last dose of study drug

Population: The population consisted of all participants who received at least one dose of study treatment.

ArmMeasureValue (NUMBER)
Dalotuzumab 5 mg/kgNumber of Participants Who Developed a Human Anti-Humanized Antibody (HAHA) Response to Dalotuzumab0 Participants
Dalotuzumab 10 mg/kgNumber of Participants Who Developed a Human Anti-Humanized Antibody (HAHA) Response to Dalotuzumab0 Participants
Dalotuzumab 15 mg/kg/7.5 mg/kgNumber of Participants Who Developed a Human Anti-Humanized Antibody (HAHA) Response to Dalotuzumab0 Participants
Secondary

Steady State Volume of Distribution (Vss) of Dalotuzumab

Vss was assessed on Week 2 (Day 8) for the Dalotuzumab 5 mg/kg and Dalotuzumab 10 mg/kg treatment groups and on Week 3 (Day 15) for the Dalotuzumab 15 mg/kg/7.5 mg/kg treatment group.

Time frame: Pre-dose, 0.5 h after start of infusion, end of infusion, 5, 10, 24, 30, 48 and 96 and 168 h post-dose

Population: The population consisted of all participants who had PK measurements at Baseline and at least once during treatment.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Dalotuzumab 5 mg/kgSteady State Volume of Distribution (Vss) of Dalotuzumab0.0776 L/kgGeometric Coefficient of Variation 17.46
Dalotuzumab 10 mg/kgSteady State Volume of Distribution (Vss) of Dalotuzumab0.0740 L/kgGeometric Coefficient of Variation 24.1
Dalotuzumab 15 mg/kg/7.5 mg/kgSteady State Volume of Distribution (Vss) of Dalotuzumab0.0924 L/kgGeometric Coefficient of Variation 16.74
Secondary

Time to Cmax (Tmax) of Dalotuzumab

Tmax was assessed on Week 2 (Day 8) for the Dalotuzumab 5 mg/kg and Dalotuzumab 10 mg/kg treatment groups and on Week 3 (Day 15) for the Dalotuzumab 15 mg/kg/7.5 mg/kg treatment group.

Time frame: Pre-dose, 0.5 h after start of infusion, end of infusion, 5, 10, 24, 30, 48 and 96 and 168 h post-dose

Population: The population consisted of all participants who had PK measurements at Baseline and at least once during treatment.

ArmMeasureValue (MEDIAN)Dispersion
Dalotuzumab 5 mg/kgTime to Cmax (Tmax) of Dalotuzumab1.0 hFull Range 1
Dalotuzumab 10 mg/kgTime to Cmax (Tmax) of Dalotuzumab3.0 hFull Range 23.02
Dalotuzumab 15 mg/kg/7.5 mg/kgTime to Cmax (Tmax) of Dalotuzumab1.0 hFull Range 11.57

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026