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CP-751,871 Treatment For Patients With Multiple Myeloma

An Open Label Phase I Study Of CP-751,871 In Patients With Multiple Myeloma

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01536145
Enrollment
47
Registered
2012-02-20
Start date
2003-12-31
Completion date
2008-06-30
Last updated
2013-03-15

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

Conditions

Multiple Myeloma

Keywords

IGF-1R inhibitor, CP-751871, multiple myeloma

Brief summary

This study represents the first-in-human study for CP-751,871. The study aimed to define the safety, tolerability, and maximum tolerated dose of CP-751,871 in patients with multiple myeloma through a dose escalation design.

Interventions

CP-751,871 was given at doses ranging from 0.025 mg/kg up to 20 mg/kg IV every 4 weeks until disease progression or lack of tolerability

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Previously treated multiple myeloma with a quantifiable serum (M spike ≥ 1 g/dL) and/or urine (≥ 200 mg/24-hr) paraprotein * Adequate bone marrow, renal, liver and cardiac function * Eastern Cooperative Oncology Group \[ECOG\] performance status less than or equal to 2

Exclusion criteria

* Prior allogeneic stem cell transplant (alloSCT) * Myelosuppressive chemotherapy or immunotherapy within 3 weeks prior to treatment with CP-751,871 * Prior organ allograft * Concurrent use of insulin, oral hypoglycemic medication, growth hormone (GH), or growth hormone inhibitors * Female patients who are pregnant or lactating

Design outcomes

Primary

MeasureTime frameDescription
Maximum Tolerated Dose (MTD)Baseline up to Cycle 1 (Week 4 or Week 8)The highest dose level at which not more than 1 dose-limiting toxicity (DLT) was observed during Cycle 1 in 6 participants

Secondary

MeasureTime frameDescription
Single Dose Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast) for CP-751,871Cycle 1: predose; 1; 24; 48; 72; 168; 336; 504, 672 and 1008 (for participants with an up to 8-week Cycle 1 only) hours postdose
Single Dose Volume of Distribution (Vz) for CP-751,871Cycle 1: predose; 1; 24; 48; 72; 168; 336; 504 and 672 and 1008 (for participants with an up to 8-week Cycle 1 only) hours postdose
Single Dose Plasma Decay Half-life (t1/2) for CP-751,871Cycle 1: predose; 1; 24; 48; 72; 168; 336; 504 and 672 and 1008 (for participants with an up to 8-week Cycle 1 only) hours postdose
Single Dose Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] for CP-751,871Cycle 1: predose; 1; 24; 48; 72; 168; 336; 504 and 672 and 1008 (for participants with an up to 8-week Cycle 1 only) hours postdose
Single Dose Volume of Distribution at Steady State (Vss) for CP-751,871Cycle 1: predose; 1; 24; 48; 72; 168; 336; 504 and 672 and 1008 (for participants with an up to 8-week Cycle 1 only) hours postdose
Single Dose Systemic Clearance (CL) for CP-751,871Cycle 1: predose; 1; 24; 48; 72; 168; 336; 504 and 672 and 1008 (for participants with an up to 8-week Cycle 1 only) hours postdose
Single Dose End-of-infusion Concentration (Cinf) for CP-751,8711 hour postdose in Cycle 1
Multiple Dose Minimum Observed Plasma Trough Concentration (Cmin) for CP-751,8710 hour (predose) in Cycles 2 up to 16
Pharmacodynamic-based DoseCycle 1 (Week 4 or Week 8)The dose associated with PK exposure that was associated with 80% of the maximal effect based on down-regulation of insulin-like growth factor 1 receptor (IGF-1R) expression
Human Anti-human Antibody (HAHA) Response to CP-751,87130 minutes predose in Cycle 1 and subsequent cycles, end of study visit (Days 30 and 60) for dose levels below 0.8 mg/kg; 30 minutes predose in Cycle 1 and last scheduled follow-up visit for dose levels greater than or equal to 0.8 mg/kg
Percentage of Participants With Objective Response (OR)Baseline, Day 1 at predose/cycle, end of study (30-60 days post last dose)Percentage of participants with OR based on assessment of confirmed complete remission (CR) or confirmed partial remission (PR) according to Southwest Oncology Group (SWOG) criteria. CR were those with absence of bone marrow or blood findings of multiple myeloma. PR were those with a 50-74% reduction in the quantitative immunoglobulin, and if present, a 50-89% reduction in the urine M-component (Bence-Jones protein).
Time to Disease ProgressionBaseline up to end of treatmentTime in weeks from start of study treatment to first documentation of objective tumor progression or death due to cancer, whichever came first. Tumor progression was determined from oncologic assessment data (where data met the criteria for progressive disease \[PD\])
Multiple Dose Cinf for CP-751,8711 hour postdose in Cycles 2 up to 16

Countries

United States

Participant flow

Participants by arm

ArmCount
CP-751,871
CP-751,871 0.025, 0.05, 0.1, 0.2, 0.4, 0.8, 1.5, 3 and 6 mg/kg administered intravenously on Day 1 of Cycle 1 (4 weeks or 8 weeks), and dose of 50% from the Cycle 1 dose administered on Day 1 of subsequent cycles, starting from Cycle 2 (4 weeks); CP-751,871 10 and 20 mg/kg administered intravenously on Day 1 of Cycle 1 (4 weeks or 8 weeks) and subsequent cycles, starting from Cycle 2 (4 weeks)
47
Total47

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008FG009FG010
Overall StudyAdverse Event00000002003
Overall StudyDeath00000010000
Overall StudyOther00001000032
Overall StudyProgressive disease34121212133
Overall StudyWithdrawal by Subject00100100202

Baseline characteristics

CharacteristicCP-751,871
Age Continuous61.3 years
STANDARD_DEVIATION 9.4
Sex: Female, Male
Female
17 Participants
Sex: Female, Male
Male
30 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
45 / 47
serious
Total, serious adverse events
21 / 47

Outcome results

Primary

Maximum Tolerated Dose (MTD)

The highest dose level at which not more than 1 dose-limiting toxicity (DLT) was observed during Cycle 1 in 6 participants

Time frame: Baseline up to Cycle 1 (Week 4 or Week 8)

Population: All participants who received at least 1 dose of study drug CP-751,871.

ArmMeasureValue (NUMBER)
CP-751,871 0.025-20 mg/kgMaximum Tolerated Dose (MTD)NA mg/kg
Secondary

Human Anti-human Antibody (HAHA) Response to CP-751,871

Time frame: 30 minutes predose in Cycle 1 and subsequent cycles, end of study visit (Days 30 and 60) for dose levels below 0.8 mg/kg; 30 minutes predose in Cycle 1 and last scheduled follow-up visit for dose levels greater than or equal to 0.8 mg/kg

Population: All treated participants with HAHA samples collected at time points when circulating CP-751,871 concentrations were below the lower limit of quantification.

ArmMeasureValue (NUMBER)
CP-751,871 0.025-20 mg/kgHuman Anti-human Antibody (HAHA) Response to CP-751,871NA
Secondary

Multiple Dose Cinf for CP-751,871

Time frame: 1 hour postdose in Cycles 2 up to 16

Population: Multiple dose Cinf data were listed for individual subjects, however were not summarized by descriptive statistics.

Secondary

Multiple Dose Minimum Observed Plasma Trough Concentration (Cmin) for CP-751,871

Time frame: 0 hour (predose) in Cycles 2 up to 16

Population: Multiple dose Cmin data were listed for individual subjects, however were not summarized by descriptive statistics.

Secondary

Percentage of Participants With Objective Response (OR)

Percentage of participants with OR based on assessment of confirmed complete remission (CR) or confirmed partial remission (PR) according to Southwest Oncology Group (SWOG) criteria. CR were those with absence of bone marrow or blood findings of multiple myeloma. PR were those with a 50-74% reduction in the quantitative immunoglobulin, and if present, a 50-89% reduction in the urine M-component (Bence-Jones protein).

Time frame: Baseline, Day 1 at predose/cycle, end of study (30-60 days post last dose)

Population: All participants who completed a minimum of 1 cycle of treatment were evaluable for response. Participants who developed early progressive disease (regardless of the duration of study treatment) prior to response evaluation were also evaluable for response.

ArmMeasureValue (NUMBER)
CP-751,871 0.025-20 mg/kgPercentage of Participants With Objective Response (OR)0 percentage of participants
CP-751,871 0.05 mg/kgPercentage of Participants With Objective Response (OR)0 percentage of participants
CP-751,871 0.1 mg/kgPercentage of Participants With Objective Response (OR)0 percentage of participants
CP-751,871 0.2 mg/kgPercentage of Participants With Objective Response (OR)0 percentage of participants
CP-751,871 0.4 mg/kgPercentage of Participants With Objective Response (OR)0 percentage of participants
CP-751,871 0.8 mg/kgPercentage of Participants With Objective Response (OR)0 percentage of participants
CP-751,871 1.5 mg/kgPercentage of Participants With Objective Response (OR)0 percentage of participants
CP-751,871 3 mg/kgPercentage of Participants With Objective Response (OR)0 percentage of participants
CP-751,871 6 mg/kgPercentage of Participants With Objective Response (OR)0 percentage of participants
CP-751,871 10 mg/kgPercentage of Participants With Objective Response (OR)0 percentage of participants
CP-751,871 20 mg/kgPercentage of Participants With Objective Response (OR)0 percentage of participants
Secondary

Pharmacodynamic-based Dose

The dose associated with PK exposure that was associated with 80% of the maximal effect based on down-regulation of insulin-like growth factor 1 receptor (IGF-1R) expression

Time frame: Cycle 1 (Week 4 or Week 8)

Population: Data from analysis of the PK/pharmacodynamic relationship could not permit a reliable estimate of the pharmacodynamic-based dose.

Secondary

Single Dose Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] for CP-751,871

Time frame: Cycle 1: predose; 1; 24; 48; 72; 168; 336; 504 and 672 and 1008 (for participants with an up to 8-week Cycle 1 only) hours postdose

Population: All participants treated who had at least 1 of the PK parameters of primary interest.

ArmMeasureValue (MEAN)Dispersion
CP-751,871 0.025-20 mg/kgSingle Dose Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] for CP-751,871249 mg•hr/LStandard Deviation 42.5
CP-751,871 0.05 mg/kgSingle Dose Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] for CP-751,8711121 mg•hr/LStandard Deviation 645
CP-751,871 0.1 mg/kgSingle Dose Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] for CP-751,8712191 mg•hr/LStandard Deviation 1396
CP-751,871 0.2 mg/kgSingle Dose Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] for CP-751,87111035 mg•hr/L
CP-751,871 0.4 mg/kgSingle Dose Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] for CP-751,87115025 mg•hr/LStandard Deviation 3673
CP-751,871 0.8 mg/kgSingle Dose Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] for CP-751,87132360 mg•hr/LStandard Deviation 4023
CP-751,871 1.5 mg/kgSingle Dose Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] for CP-751,87146275 mg•hr/LStandard Deviation 16606
Secondary

Single Dose Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast) for CP-751,871

Time frame: Cycle 1: predose; 1; 24; 48; 72; 168; 336; 504, 672 and 1008 (for participants with an up to 8-week Cycle 1 only) hours postdose

Population: All participants treated who had at least 1 of the pharmacokinetic (PK) parameters of primary interest.

ArmMeasureValue (MEAN)Dispersion
CP-751,871 0.025-20 mg/kgSingle Dose Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast) for CP-751,871101 milligram•hour/liter (mg•hr/L)
CP-751,871 0.05 mg/kgSingle Dose Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast) for CP-751,871202 milligram•hour/liter (mg•hr/L)Standard Deviation 29.2
CP-751,871 0.1 mg/kgSingle Dose Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast) for CP-751,8711016 milligram•hour/liter (mg•hr/L)Standard Deviation 583
CP-751,871 0.2 mg/kgSingle Dose Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast) for CP-751,8712079 milligram•hour/liter (mg•hr/L)Standard Deviation 1413
CP-751,871 0.4 mg/kgSingle Dose Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast) for CP-751,8718380 milligram•hour/liter (mg•hr/L)Standard Deviation 4533
CP-751,871 0.8 mg/kgSingle Dose Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast) for CP-751,87115436 milligram•hour/liter (mg•hr/L)Standard Deviation 6406
CP-751,871 1.5 mg/kgSingle Dose Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast) for CP-751,87126144 milligram•hour/liter (mg•hr/L)Standard Deviation 2672
CP-751,871 3 mg/kgSingle Dose Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast) for CP-751,87138700 milligram•hour/liter (mg•hr/L)Standard Deviation 15019
CP-751,871 6 mg/kgSingle Dose Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast) for CP-751,87195565 milligram•hour/liter (mg•hr/L)Standard Deviation 25891
Secondary

Single Dose End-of-infusion Concentration (Cinf) for CP-751,871

Time frame: 1 hour postdose in Cycle 1

Population: All participants treated who had at least 1 concentration.

ArmMeasureValue (MEAN)Dispersion
CP-751,871 0.025-20 mg/kgSingle Dose End-of-infusion Concentration (Cinf) for CP-751,8710 milligram/liter (mg/L)
CP-751,871 0.05 mg/kgSingle Dose End-of-infusion Concentration (Cinf) for CP-751,8710.381 milligram/liter (mg/L)Standard Deviation 0.448
CP-751,871 0.1 mg/kgSingle Dose End-of-infusion Concentration (Cinf) for CP-751,8715.32 milligram/liter (mg/L)Standard Deviation 6.85
CP-751,871 0.2 mg/kgSingle Dose End-of-infusion Concentration (Cinf) for CP-751,8715.36 milligram/liter (mg/L)Standard Deviation 1.52
CP-751,871 0.4 mg/kgSingle Dose End-of-infusion Concentration (Cinf) for CP-751,8716.66 milligram/liter (mg/L)Standard Deviation 2.84
CP-751,871 0.8 mg/kgSingle Dose End-of-infusion Concentration (Cinf) for CP-751,87114.6 milligram/liter (mg/L)
CP-751,871 1.5 mg/kgSingle Dose End-of-infusion Concentration (Cinf) for CP-751,87126.0 milligram/liter (mg/L)Standard Deviation 9.03
CP-751,871 3 mg/kgSingle Dose End-of-infusion Concentration (Cinf) for CP-751,87162.7 milligram/liter (mg/L)Standard Deviation 13.5
CP-751,871 6 mg/kgSingle Dose End-of-infusion Concentration (Cinf) for CP-751,871159 milligram/liter (mg/L)Standard Deviation 57.2
CP-751,871 10 mg/kgSingle Dose End-of-infusion Concentration (Cinf) for CP-751,871165 milligram/liter (mg/L)Standard Deviation 57.3
CP-751,871 20 mg/kgSingle Dose End-of-infusion Concentration (Cinf) for CP-751,871238 milligram/liter (mg/L)Standard Deviation 215
Secondary

Single Dose Plasma Decay Half-life (t1/2) for CP-751,871

Time frame: Cycle 1: predose; 1; 24; 48; 72; 168; 336; 504 and 672 and 1008 (for participants with an up to 8-week Cycle 1 only) hours postdose

Population: All participants treated who had at least 1 of the PK parameters of primary interest.

ArmMeasureValue (MEAN)Dispersion
CP-751,871 0.025-20 mg/kgSingle Dose Plasma Decay Half-life (t1/2) for CP-751,8711.70 daysStandard Deviation 0.631
CP-751,871 0.05 mg/kgSingle Dose Plasma Decay Half-life (t1/2) for CP-751,8714.63 daysStandard Deviation 2.88
CP-751,871 0.1 mg/kgSingle Dose Plasma Decay Half-life (t1/2) for CP-751,8714.10 daysStandard Deviation 0.0566
CP-751,871 0.2 mg/kgSingle Dose Plasma Decay Half-life (t1/2) for CP-751,8719.15 days
CP-751,871 0.4 mg/kgSingle Dose Plasma Decay Half-life (t1/2) for CP-751,87112.7 daysStandard Deviation 1.59
CP-751,871 0.8 mg/kgSingle Dose Plasma Decay Half-life (t1/2) for CP-751,87112.7 daysStandard Deviation 4.61
CP-751,871 1.5 mg/kgSingle Dose Plasma Decay Half-life (t1/2) for CP-751,87112.1 daysStandard Deviation 3.42
Secondary

Single Dose Systemic Clearance (CL) for CP-751,871

Time frame: Cycle 1: predose; 1; 24; 48; 72; 168; 336; 504 and 672 and 1008 (for participants with an up to 8-week Cycle 1 only) hours postdose

Population: All participants treated who had at least 1 of the PK parameters of primary interest.

ArmMeasureValue (MEAN)Dispersion
CP-751,871 0.025-20 mg/kgSingle Dose Systemic Clearance (CL) for CP-751,87119.7 milliliter/day/kilogram (mL/day/kg)Standard Deviation 3.65
CP-751,871 0.05 mg/kgSingle Dose Systemic Clearance (CL) for CP-751,87111.9 milliliter/day/kilogram (mL/day/kg)Standard Deviation 8.75
CP-751,871 0.1 mg/kgSingle Dose Systemic Clearance (CL) for CP-751,87110.9 milliliter/day/kilogram (mL/day/kg)Standard Deviation 5.09
CP-751,871 0.2 mg/kgSingle Dose Systemic Clearance (CL) for CP-751,8713.57 milliliter/day/kilogram (mL/day/kg)
CP-751,871 0.4 mg/kgSingle Dose Systemic Clearance (CL) for CP-751,8714.98 milliliter/day/kilogram (mL/day/kg)Standard Deviation 1.14
CP-751,871 0.8 mg/kgSingle Dose Systemic Clearance (CL) for CP-751,8714.50 milliliter/day/kilogram (mL/day/kg)Standard Deviation 0.602
CP-751,871 1.5 mg/kgSingle Dose Systemic Clearance (CL) for CP-751,8715.71 milliliter/day/kilogram (mL/day/kg)Standard Deviation 1.83
Secondary

Single Dose Volume of Distribution at Steady State (Vss) for CP-751,871

Time frame: Cycle 1: predose; 1; 24; 48; 72; 168; 336; 504 and 672 and 1008 (for participants with an up to 8-week Cycle 1 only) hours postdose

Population: All participants treated who had at least 1 of the PK parameters of primary interest.

ArmMeasureValue (MEAN)Dispersion
CP-751,871 0.025-20 mg/kgSingle Dose Volume of Distribution at Steady State (Vss) for CP-751,87146.0 mL/kgStandard Deviation 11.9
CP-751,871 0.05 mg/kgSingle Dose Volume of Distribution at Steady State (Vss) for CP-751,87165.9 mL/kgStandard Deviation 24.7
CP-751,871 0.1 mg/kgSingle Dose Volume of Distribution at Steady State (Vss) for CP-751,87172.6 mL/kgStandard Deviation 21.1
CP-751,871 0.2 mg/kgSingle Dose Volume of Distribution at Steady State (Vss) for CP-751,87150.9 mL/kg
CP-751,871 0.4 mg/kgSingle Dose Volume of Distribution at Steady State (Vss) for CP-751,87181.4 mL/kgStandard Deviation 16.6
CP-751,871 0.8 mg/kgSingle Dose Volume of Distribution at Steady State (Vss) for CP-751,87169.4 mL/kgStandard Deviation 16
CP-751,871 1.5 mg/kgSingle Dose Volume of Distribution at Steady State (Vss) for CP-751,87192.1 mL/kgStandard Deviation 15.8
Secondary

Single Dose Volume of Distribution (Vz) for CP-751,871

Time frame: Cycle 1: predose; 1; 24; 48; 72; 168; 336; 504 and 672 and 1008 (for participants with an up to 8-week Cycle 1 only) hours postdose

Population: All participants treated who had at least 1 of the PK parameters of primary interest.

ArmMeasureValue (MEAN)Dispersion
CP-751,871 0.025-20 mg/kgSingle Dose Volume of Distribution (Vz) for CP-751,87146.3 milliliter/kilogram (mL/kg )Standard Deviation 12.2
CP-751,871 0.05 mg/kgSingle Dose Volume of Distribution (Vz) for CP-751,87163.3 milliliter/kilogram (mL/kg )Standard Deviation 26.4
CP-751,871 0.1 mg/kgSingle Dose Volume of Distribution (Vz) for CP-751,87164.5 milliliter/kilogram (mL/kg )Standard Deviation 29.7
CP-751,871 0.2 mg/kgSingle Dose Volume of Distribution (Vz) for CP-751,87152.0 milliliter/kilogram (mL/kg )
CP-751,871 0.4 mg/kgSingle Dose Volume of Distribution (Vz) for CP-751,87190.0 milliliter/kilogram (mL/kg )Standard Deviation 18.2
CP-751,871 0.8 mg/kgSingle Dose Volume of Distribution (Vz) for CP-751,87181.9 milliliter/kilogram (mL/kg )Standard Deviation 28.5
CP-751,871 1.5 mg/kgSingle Dose Volume of Distribution (Vz) for CP-751,87193.0 milliliter/kilogram (mL/kg )Standard Deviation 14.3
Secondary

Time to Disease Progression

Time in weeks from start of study treatment to first documentation of objective tumor progression or death due to cancer, whichever came first. Tumor progression was determined from oncologic assessment data (where data met the criteria for progressive disease \[PD\])

Time frame: Baseline up to end of treatment

Population: A substantial number of participants were not followed-up prior to disease progression, therefore time to disease progression was not estimated.

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