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A Study of Olaratumab Alone and in Combination With Standard Chemotherapies in Children With Cancer

A Phase 1, Open-Label, Dose-Escalation Study of Olaratumab as a Single Agent and in Combination With Doxorubicin, Vincristine/Irinotecan, or High-Dose Ifosfamide in Pediatric Patients With Relapsed or Refractory Solid Tumors

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02677116
Enrollment
68
Registered
2016-02-09
Start date
2016-08-29
Completion date
2019-04-03
Last updated
2020-05-20

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

Conditions

Neoplasm Metastasis

Brief summary

The main purpose of this study is to evaluate the safety of different doses of olaratumab and to determine which dose should be used for future pediatric studies. The present study is open to children with advanced cancer or cancer that has spread to another part of the body. The study has three parts. In the first two parts, a specific dose of olaratumab will be given in 21 day cycles, followed by one of three standard chemotherapy regimens. In the third part, a specific dose of olaratumab will be given with one of three standard chemotherapy regimens in 21 day cycles. Participants will only enroll in one part.

Interventions

Olaratumab administered IV.

DRUGDoxorubicin

Doxorubicin administered IV.

DRUGVincristine

Vincristine administered IV.

DRUGIrinotecan

Irinotecan administered IV.

DRUGIfosfamide

Ifosfamide administered IV.

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
No minimum to 17 Years
Healthy volunteers
No

Inclusion criteria

* The participant must have histological or cytological evidence of a diagnosis of solid tumor, excluding lymphomas and melanoma, but including central nervous system (CNS) tumors, that is relapsed or refractory, not be amenable to curative treatment. * The participant has the presence of measurable and/or nonmeasurable but evaluable disease as defined by the Response Evaluation Criteria In Solid Tumors (RECIST Version 1.1). Response Assessment in Neuro-Oncology (RANO) Criteria or Macdonald Criteria should be used for CNS tumors. * The participant has a Lansky (\<16 years of age) or Karnofsky (≥16 years of age) performance score of at least 50. * The participant has adequate hematologic, organ, and coagulation function ≤2 weeks (14 days) prior to first dose of study drug: * Absolute neutrophil count (ANC) ≥750 cubic millimeters (mm³) * Platelets ≥75,000/mm³ * Hemoglobin ≥8 grams per deciliter (g/dL) * Total bilirubin (sum of conjugated + unconjugated) ≤1.5 x upper limit of normal (ULN) for age * Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤3.0 x ULN * Serum creatinine is based on age/gender * Adequate coagulation function as defined by International Normalized Ratio ≤1.5 or prothrombin time ≤1.5 x ULN, and partial thromboplastin time ≤1.5 x ULN * Both female and male participants of child-bearing potential must agree to use highly effective contraceptive precautions during the trial and up to 3 months following the last dose of olaratumab, or longer for other study drugs according to their label. * Participants must have fully recovered from the acute toxic effects of all prior anticancer therapies or must adhere to post-treatment conditions as follows: * Myelosuppressive chemotherapy * Hematopoietic growth factors * Biologic (anti-neoplastic agent) * Antibody therapy * Radiation * Stem cell infusion without traumatic brain injury * Corticosteroids

Exclusion criteria

* Have received treatment within 21 days of the initial dose of olaratumab with an investigational product or non-approved use of a drug or device or are concurrently enrolled in any other type of medical research judged not to be scientifically or medically compatible with this study. * Participants that have had bone marrow or solid organ transplant are excluded. * The participant has an active fungal, bacterial, and/or known severe viral infection including human immunodeficiency virus (HIV) or viral (A, B, or C) hepatitis (screening is not required). * Female participants who are pregnant or breastfeeding are excluded. * If the participant is to be enrolled in the doxorubicin combination arm, a left ventricular dysfunction (LVEF \< 50%) or shortening fraction of \<27% by echocardiogram (either multigated acquisition \[MUGA\] or echocardiogram \[ECHO\] are required, not both). * Participants that have received prior anthracycline therapy if the participant is to be enrolled in the doxorubicin combination arm.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Olaratumab Dose Limiting Toxicities (DLTs)Parts A and B: Cycle 1 through Cycle 2 in each arm (21-day cycle); Part C: Cycle 1 only (21-day cycle)A dose limiting toxicity (DLT) was defined as an adverse event (AE) during the first 21 days that was possibly related to the study drug and fulfilled any of the following criteria using the National Cancer Institute's (NCI) Common Terminology Criteria for Adverse Events (CTCAE), Version 4.0: CTCAE Grade 3 nonhematologic toxicity, grade 4 neutropenia that lasted longer than 2 weeks, grade ≥3 thrombocytopenia complicated by hemorrhage, and any hematologic toxicity that caused a cycle delay of \>14 days.

Secondary

MeasureTime frameDescription
PK: Maximum Concentration (Cmax) of Olaratumab Part BCycle 1, Day 8 and Cycle 2, Days 1 and 8: 1.25 hour (h), 2.5 h, 3.5h PostdosePK: Maximum serum concentration (Cmax) data of Olaratumab was reported from available sample data.
PK: Maximum Concentration (Cmax) of Olaratumab Part CCycle 1, Days 1 and 8; Cycle 2, Days 1 and 8: 1.25 hour (h), 2.5 h, 3.5h PostdosePharmacokinetics (PK): Maximum serum concentration (Cmax) data of Olaratumab was reported from available sample data.
PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part ACycles 1, 2, 3-25; Day 8: 336 Hours PostdosePK: Trough serum concentration (Cmin) of Olaratumab was reported. A sample was collected every other cycle from cycles 1, 2, 3-25.
PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part BCycles 1, 2, 3-25; Day 8: 336 Hours PostdosePK: Trough serum concentration (Cmin) of Olaratumab was reported. A sample was collected every other cycle from cycles 1, 2, 3-25.
Pharmacokinetics (PK): Maximum Concentration (Cmax) of Olaratumab Part ACycle 1, Day 8 and Cycle 2, Days 1 and 8: 1.25 hour (h), 2.5 h, 3.5h PostdosePharmacokinetics (PK): Maximum serum concentration (Cmax) data of Olaratumab was reported from available sample data.
Percentage of Participants With a Complete Response (CR) or Partial Response (PR) (Objective Response Rate [ORR])Baseline to objective progression or start of new anti-cancer therapy (Up to 7 months)Objective Response Rate (ORR) is the percentage of participants achieving a confirmed best overall tumor response of CR or PR. According to RECIST v1.1, PR defined as a \>30% decrease in the sum of the longest diameters (LD) of the target lesions, taking as reference the baseline sum of the LD; CR was defined as the disappearance of all target and non-target lesions.
Progression Free Survival (PFS)Baseline to radiological disease progression or death from any cause (Up to 2 Years)Progression-free survival (PFS) is defined as the time from baseline to the first date of radiological disease progression or death due to any cause. Progressive disease (PD) according to Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 is defined as at least a 20% increase in the sum of the diameters of target lesions, taking as reference the smallest sum on study (including the baseline sum if that is the smallest). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 millimeters (mm). The appearance of one or more new lesions is also considered progression. If participant started new treatment before PD, the participant was censored at the date of last tumor assessment prior to new therapy. If treatment was discontinued for reasons other than PD and no further assessment, censoring occurred at last tumor assessment.
Percentage of Participants With Treatment Emergent (TE) Positive Anti-Olaratumab AntibodiesFrom Baseline to Study Completion (Up to 33 Months)Percentage of participants with a TE positive anti-olaratumab antibodies defined as a participant with a 4-fold (2 dilutions) increase over a positive baseline antibody titer.
PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part CCycles 1, 2, 3-25; Day 8: 336 Hours PostdosePK: Trough serum concentration (Cmin) of Olaratumab was reported. A sample was collected every other cycle from cycles 1, 2, 3-25.

Countries

Japan, United States

Participant flow

Pre-assignment details

Completers include the participants who died due to any cause or disease progression, alive and on study at conclusion, but off treatment.

Participants by arm

ArmCount
Olaratumab + Vincristine + Irinotecan (Part A)
Cycle 1: Olaratumab 15 milligram/kilogram (mg/kg) was administered alone intravenously (IV) on Days 1 and 8. Cycle 2 and beyond: Olaratumab 15 mg/kg and vincristine administered IV on Days 1 and 8. Irinotecan administered IV on Days 1 through 5. Treatment will cease when discontinuation criterion is met. All cycles are 21 days.
10
Olaratumab + Doxorubicin (Part A)
Cycle 1: Olaratumab 15 mg/kg was administered alone IV on Days 1 and 8. Cycle 2 and beyond: Olaratumab 15 mg/kg administered IV on Days 1 and 8 and doxorubicin administered IV on Days 1 and 2. Treatment will cease when discontinuation criterion is met. All cycles are 21 days.
11
Olaratumab + Ifosfamide (Part A)
Cycle 1: Olaratumab 15 mg/kg was administered alone IV on Days 1 and 8. Cycle 2 and beyond: Olaratumab 15mg/kg administered IV on Days 1 and 8 of each cycle. Ifosfamide administered IV on Days 1 through 5. Treatment will cease when discontinuation criterion is met. All cycles are 21 days.
9
Olaratumab + Vincristine + Irinotecan (Part B)
Cycle 1: Olaratumab 20 mg/kg was administered alone IV on Days 1 and 8. Cycle 2 and beyond: Olaratumab 20 mg/kg and vincristine administered IV on Days 1 and 8. Irinotecan administered IV on Days 1 through 5. Treatment will cease when discontinuation criterion is met. All cycles are 21 days.
10
Olaratumab + Doxorubicin (Part B)
Cycle 1: Olaratumab 20 mg/kg was administered alone IV on Days 1 and 8. Cycle 2 and beyond: Olaratumab 20 mg/kg administered IV on Days 1 and 8 and doxorubicin administered IV on Days 1 and 2. Treatment will cease when discontinuation criterion is met. All cycles are 21 days.
1
Olaratumab + Ifosfamide (Part B)
Cycle1: Olaratumab 20 mg/kg was administered alone IV on Days 1 and 8. Cycle 2 and beyond: Olaratumab 20 mg/kg administered IV on Days 1 and 8 of each cycle. Ifosfamide administered IV on Days 1 through 5. Treatment will cease when discontinuation criterion is met. All cycles are 21 days.
13
Olaratumab + Vincristine + Irinotecan (Part C)
Cycle 1 and beyond: Olaratumab 20 mg/kg and vincristine administered IV on Days 1 and 8. Irinotecan administered IV on Days 1 through 5. Treatment will cease when discontinuation criterion is met. All cycles are 21 days.
6
Olaratumab + Ifosfamide (Part C)
Cycle 1 and beyond: Olaratumab 20 mg/kg administered IV on Days 1 and 8 of each cycle. Ifosfamide administered IV on Days 1 though 5. Treatment will cease when discontinuation criterion is met. All cycles are 21 days.
4
Olaratumab + Doxorubicin (Part C)
Cycle 1 and beyond: Olaratumab 20 mg/kg administered IV on Days 1 and 8 and doxorubicin administered IV on Days 1 and 2. Treatment will cease when discontinuation criterion is met. All cycles are 21 days.
4
Total68

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008
Overall StudyAdverse Event010001100
Overall StudyPhysician Decision023213112
Overall StudyWithdrawal by parent or guardian210100210
Overall StudyWithdrawal by Subject100000000

Baseline characteristics

CharacteristicOlaratumab + Vincristine + Irinotecan (Part A)TotalOlaratumab + Doxorubicin (Part C)Olaratumab + Ifosfamide (Part C)Olaratumab + Vincristine + Irinotecan (Part C)Olaratumab + Ifosfamide (Part B)Olaratumab + Doxorubicin (Part B)Olaratumab + Vincristine + Irinotecan (Part B)Olaratumab + Ifosfamide (Part A)Olaratumab + Doxorubicin (Part A)
Age, Continuous9.9 years
STANDARD_DEVIATION 5.5
10.0 years
STANDARD_DEVIATION 4.8
10.8 years
STANDARD_DEVIATION 5.1
8.0 years
STANDARD_DEVIATION 7
9.7 years
STANDARD_DEVIATION 5.4
12.5 years
STANDARD_DEVIATION 3.8
NA years10.6 years
STANDARD_DEVIATION 4.9
10.7 years
STANDARD_DEVIATION 4.3
6.8 years
STANDARD_DEVIATION 4.3
Race/Ethnicity, Customized
Hispanic or Latino
1 Participants14 Participants1 Participants1 Participants2 Participants3 Participants0 Participants1 Participants1 Participants4 Participants
Race/Ethnicity, Customized
Missing
0 Participants7 Participants1 Participants2 Participants2 Participants0 Participants0 Participants1 Participants1 Participants0 Participants
Race/Ethnicity, Customized
Not Hispanic or Latino
9 Participants43 Participants0 Participants0 Participants1 Participants10 Participants1 Participants8 Participants7 Participants7 Participants
Race/Ethnicity, Customized
Not Reported
0 Participants4 Participants2 Participants1 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants11 Participants3 Participants3 Participants3 Participants0 Participants0 Participants0 Participants1 Participants1 Participants
Race (NIH/OMB)
Black or African American
1 Participants8 Participants0 Participants0 Participants0 Participants2 Participants0 Participants2 Participants2 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants3 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants1 Participants1 Participants
Race (NIH/OMB)
White
9 Participants46 Participants1 Participants1 Participants3 Participants11 Participants1 Participants7 Participants5 Participants8 Participants
Region of Enrollment
Japan
0 Participants9 Participants3 Participants3 Participants3 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Region of Enrollment
United States
10 Participants59 Participants1 Participants1 Participants3 Participants13 Participants1 Participants10 Participants9 Participants11 Participants
Sex: Female, Male
Female
4 Participants28 Participants2 Participants1 Participants4 Participants6 Participants0 Participants6 Participants2 Participants3 Participants
Sex: Female, Male
Male
6 Participants40 Participants2 Participants3 Participants2 Participants7 Participants1 Participants4 Participants7 Participants8 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
deaths
Total, all-cause mortality
2 / 101 / 92 / 112 / 102 / 130 / 10 / 60 / 40 / 4
other
Total, other adverse events
10 / 109 / 911 / 119 / 1013 / 131 / 16 / 64 / 44 / 4
serious
Total, serious adverse events
3 / 104 / 92 / 115 / 107 / 130 / 12 / 61 / 44 / 4

Outcome results

Primary

Number of Participants With Olaratumab Dose Limiting Toxicities (DLTs)

A dose limiting toxicity (DLT) was defined as an adverse event (AE) during the first 21 days that was possibly related to the study drug and fulfilled any of the following criteria using the National Cancer Institute's (NCI) Common Terminology Criteria for Adverse Events (CTCAE), Version 4.0: CTCAE Grade 3 nonhematologic toxicity, grade 4 neutropenia that lasted longer than 2 weeks, grade ≥3 thrombocytopenia complicated by hemorrhage, and any hematologic toxicity that caused a cycle delay of \>14 days.

Time frame: Parts A and B: Cycle 1 through Cycle 2 in each arm (21-day cycle); Part C: Cycle 1 only (21-day cycle)

Population: All participants who received at least one dose of study drug and had DLTs.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Olaratumab + Vincristine + Irinotecan (Part A)Number of Participants With Olaratumab Dose Limiting Toxicities (DLTs)0 Participants
Olaratumab + Ifosfamide (Part A)Number of Participants With Olaratumab Dose Limiting Toxicities (DLTs)1 Participants
Olaratumab + Doxorubicin (Part A)Number of Participants With Olaratumab Dose Limiting Toxicities (DLTs)0 Participants
Olaratumab + Vincristine + Irinotecan (Part B)Number of Participants With Olaratumab Dose Limiting Toxicities (DLTs)1 Participants
Olaratumab + Ifosfamide (Part B)Number of Participants With Olaratumab Dose Limiting Toxicities (DLTs)0 Participants
Olaratumab + Doxorubicin (Part B)Number of Participants With Olaratumab Dose Limiting Toxicities (DLTs)1 Participants
Olaratumab + Vincristine + Irinotecan (Part C)Number of Participants With Olaratumab Dose Limiting Toxicities (DLTs)1 Participants
Olaratumab + Ifosfamide (Part C)Number of Participants With Olaratumab Dose Limiting Toxicities (DLTs)0 Participants
Olaratumab + Doxorubicin (Part C)Number of Participants With Olaratumab Dose Limiting Toxicities (DLTs)0 Participants
Secondary

Percentage of Participants With a Complete Response (CR) or Partial Response (PR) (Objective Response Rate [ORR])

Objective Response Rate (ORR) is the percentage of participants achieving a confirmed best overall tumor response of CR or PR. According to RECIST v1.1, PR defined as a \>30% decrease in the sum of the longest diameters (LD) of the target lesions, taking as reference the baseline sum of the LD; CR was defined as the disappearance of all target and non-target lesions.

Time frame: Baseline to objective progression or start of new anti-cancer therapy (Up to 7 months)

Population: All participants who received at least one dose of study drug and had evaluable ORR data.

ArmMeasureValue (NUMBER)
Olaratumab + Vincristine + Irinotecan (Part A)Percentage of Participants With a Complete Response (CR) or Partial Response (PR) (Objective Response Rate [ORR])0 percentage of participants
Olaratumab + Ifosfamide (Part A)Percentage of Participants With a Complete Response (CR) or Partial Response (PR) (Objective Response Rate [ORR])0 percentage of participants
Olaratumab + Doxorubicin (Part A)Percentage of Participants With a Complete Response (CR) or Partial Response (PR) (Objective Response Rate [ORR])9.1 percentage of participants
Olaratumab + Vincristine + Irinotecan (Part B)Percentage of Participants With a Complete Response (CR) or Partial Response (PR) (Objective Response Rate [ORR])20.0 percentage of participants
Olaratumab + Ifosfamide (Part B)Percentage of Participants With a Complete Response (CR) or Partial Response (PR) (Objective Response Rate [ORR])0 percentage of participants
Olaratumab + Doxorubicin (Part B)Percentage of Participants With a Complete Response (CR) or Partial Response (PR) (Objective Response Rate [ORR])0 percentage of participants
Olaratumab + Vincristine + Irinotecan (Part C)Percentage of Participants With a Complete Response (CR) or Partial Response (PR) (Objective Response Rate [ORR])0 percentage of participants
Olaratumab + Ifosfamide (Part C)Percentage of Participants With a Complete Response (CR) or Partial Response (PR) (Objective Response Rate [ORR])0 percentage of participants
Olaratumab + Doxorubicin (Part C)Percentage of Participants With a Complete Response (CR) or Partial Response (PR) (Objective Response Rate [ORR])25.0 percentage of participants
Secondary

Percentage of Participants With Treatment Emergent (TE) Positive Anti-Olaratumab Antibodies

Percentage of participants with a TE positive anti-olaratumab antibodies defined as a participant with a 4-fold (2 dilutions) increase over a positive baseline antibody titer.

Time frame: From Baseline to Study Completion (Up to 33 Months)

Population: All participants who received at least one dose of study drug and had evaluable baseline sample and at least 1 evaluable post baseline sample.

ArmMeasureValue (NUMBER)
Olaratumab + Vincristine + Irinotecan (Part A)Percentage of Participants With Treatment Emergent (TE) Positive Anti-Olaratumab Antibodies0 percentage of participants
Olaratumab + Ifosfamide (Part A)Percentage of Participants With Treatment Emergent (TE) Positive Anti-Olaratumab Antibodies0 percentage of participants
Olaratumab + Doxorubicin (Part A)Percentage of Participants With Treatment Emergent (TE) Positive Anti-Olaratumab Antibodies0 percentage of participants
Olaratumab + Vincristine + Irinotecan (Part B)Percentage of Participants With Treatment Emergent (TE) Positive Anti-Olaratumab Antibodies0 percentage of participants
Olaratumab + Ifosfamide (Part B)Percentage of Participants With Treatment Emergent (TE) Positive Anti-Olaratumab Antibodies0 percentage of participants
Olaratumab + Doxorubicin (Part B)Percentage of Participants With Treatment Emergent (TE) Positive Anti-Olaratumab Antibodies0 percentage of participants
Olaratumab + Vincristine + Irinotecan (Part C)Percentage of Participants With Treatment Emergent (TE) Positive Anti-Olaratumab Antibodies0 percentage of participants
Olaratumab + Ifosfamide (Part C)Percentage of Participants With Treatment Emergent (TE) Positive Anti-Olaratumab Antibodies0 percentage of participants
Olaratumab + Doxorubicin (Part C)Percentage of Participants With Treatment Emergent (TE) Positive Anti-Olaratumab Antibodies0 percentage of participants
Secondary

Pharmacokinetics (PK): Maximum Concentration (Cmax) of Olaratumab Part A

Pharmacokinetics (PK): Maximum serum concentration (Cmax) data of Olaratumab was reported from available sample data.

Time frame: Cycle 1, Day 8 and Cycle 2, Days 1 and 8: 1.25 hour (h), 2.5 h, 3.5h Postdose

Population: All participants who had evaluable PK individual serum concentration samples analyzed for Cycle 1 Olaratumab alone and Cycle 2 Olaratumab combinations for Part A.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Olaratumab + Vincristine + Irinotecan (Part A)Pharmacokinetics (PK): Maximum Concentration (Cmax) of Olaratumab Part ACycle 1, Day 8439 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 23
Olaratumab + Ifosfamide (Part A)Pharmacokinetics (PK): Maximum Concentration (Cmax) of Olaratumab Part ACycle 2, Day 1406 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 21
Olaratumab + Ifosfamide (Part A)Pharmacokinetics (PK): Maximum Concentration (Cmax) of Olaratumab Part ACycle 2, Day 8422 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 30
Olaratumab + Doxorubicin (Part A)Pharmacokinetics (PK): Maximum Concentration (Cmax) of Olaratumab Part ACycle 2, Day 8398 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 44
Olaratumab + Doxorubicin (Part A)Pharmacokinetics (PK): Maximum Concentration (Cmax) of Olaratumab Part ACycle 2, Day 1396 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 39
Olaratumab + Vincristine + Irinotecan (Part B)Pharmacokinetics (PK): Maximum Concentration (Cmax) of Olaratumab Part ACycle 2, Day 1437 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 44
Olaratumab + Vincristine + Irinotecan (Part B)Pharmacokinetics (PK): Maximum Concentration (Cmax) of Olaratumab Part ACycle 2, Day 8523 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 26
Secondary

PK: Maximum Concentration (Cmax) of Olaratumab Part B

PK: Maximum serum concentration (Cmax) data of Olaratumab was reported from available sample data.

Time frame: Cycle 1, Day 8 and Cycle 2, Days 1 and 8: 1.25 hour (h), 2.5 h, 3.5h Postdose

Population: All participants who had evaluable PK individual serum concentration samples analyzed for Cycle 1 Olaratumab alone and Cycle 2 Olaratumab combinations for Part B. Zero participants analyzed for Olaratumab and Doxorubicin being below the quantifiable limit.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Olaratumab + Vincristine + Irinotecan (Part A)PK: Maximum Concentration (Cmax) of Olaratumab Part BCycle 1, Day 8639 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 27
Olaratumab + Doxorubicin (Part A)PK: Maximum Concentration (Cmax) of Olaratumab Part BCycle 2, Day 1629 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 32
Olaratumab + Doxorubicin (Part A)PK: Maximum Concentration (Cmax) of Olaratumab Part BCycle 2, Day 8696 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 27
Olaratumab + Vincristine + Irinotecan (Part B)PK: Maximum Concentration (Cmax) of Olaratumab Part BCycle 2, Day 1585 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 30
Olaratumab + Vincristine + Irinotecan (Part B)PK: Maximum Concentration (Cmax) of Olaratumab Part BCycle 2, Day 8647 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 27
Secondary

PK: Maximum Concentration (Cmax) of Olaratumab Part C

Pharmacokinetics (PK): Maximum serum concentration (Cmax) data of Olaratumab was reported from available sample data.

Time frame: Cycle 1, Days 1 and 8; Cycle 2, Days 1 and 8: 1.25 hour (h), 2.5 h, 3.5h Postdose

Population: All participants who had evaluable PK individual serum concentration samples analyzed for Cycle 1 and 2 for all Part C treatment combinations. Per protocol, the Part C olaratumab alone was not collected.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Olaratumab + Vincristine + Irinotecan (Part A)PK: Maximum Concentration (Cmax) of Olaratumab Part CCycle 1, Day 8493 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 20
Olaratumab + Vincristine + Irinotecan (Part A)PK: Maximum Concentration (Cmax) of Olaratumab Part CCycle 1, Day 1406 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 20
Olaratumab + Ifosfamide (Part A)PK: Maximum Concentration (Cmax) of Olaratumab Part CCycle 2, Day 8502 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 38
Olaratumab + Doxorubicin (Part A)PK: Maximum Concentration (Cmax) of Olaratumab Part CCycle 1, Day 8695 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 37
Olaratumab + Doxorubicin (Part A)PK: Maximum Concentration (Cmax) of Olaratumab Part CCycle 1, Day 1548 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 15
Olaratumab + Doxorubicin (Part A)PK: Maximum Concentration (Cmax) of Olaratumab Part CCycle 2, Day 8707 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 3
Olaratumab + Vincristine + Irinotecan (Part B)PK: Maximum Concentration (Cmax) of Olaratumab Part CCycle 1, Day 1363 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 39
Olaratumab + Vincristine + Irinotecan (Part B)PK: Maximum Concentration (Cmax) of Olaratumab Part CCycle 2, Day 8567 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 38
Olaratumab + Vincristine + Irinotecan (Part B)PK: Maximum Concentration (Cmax) of Olaratumab Part CCycle 1, Day 8498 microgram/milliliter (μg/mL)Geometric Coefficient of Variation 43
Secondary

PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part A

PK: Trough serum concentration (Cmin) of Olaratumab was reported. A sample was collected every other cycle from cycles 1, 2, 3-25.

Time frame: Cycles 1, 2, 3-25; Day 8: 336 Hours Postdose

Population: All participants who had evaluable PK individual serum concentration samples analyzed for Cycle 1 Olaratumab alone and Cycle 2 and 3-25 Olaratumab combinations for Part A.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Olaratumab + Vincristine + Irinotecan (Part A)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part ACycle 1, Day 873 μg/mLGeometric Coefficient of Variation 56
Olaratumab + Ifosfamide (Part A)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part ACycle 2, Day 838.5 μg/mLGeometric Coefficient of Variation 29.1
Olaratumab + Ifosfamide (Part A)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part ACycle 3-25, Day 894.4 μg/mLGeometric Coefficient of Variation 41
Olaratumab + Doxorubicin (Part A)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part ACycle 2, Day 8114 μg/mLGeometric Coefficient of Variation 85
Olaratumab + Doxorubicin (Part A)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part ACycle 1, Day 846.3 μg/mLGeometric Coefficient of Variation 284
Olaratumab + Doxorubicin (Part A)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part ACycle 3-25, Day 888.2 μg/mLGeometric Coefficient of Variation 77
Olaratumab + Vincristine + Irinotecan (Part B)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part ACycle 1, Day 897.8 μg/mLGeometric Coefficient of Variation 29
Olaratumab + Vincristine + Irinotecan (Part B)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part ACycle 3-25, Day 895.1 μg/mLGeometric Coefficient of Variation 85
Olaratumab + Vincristine + Irinotecan (Part B)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part ACycle 2, Day 837.7 μg/mLGeometric Coefficient of Variation 112
Secondary

PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part B

PK: Trough serum concentration (Cmin) of Olaratumab was reported. A sample was collected every other cycle from cycles 1, 2, 3-25.

Time frame: Cycles 1, 2, 3-25; Day 8: 336 Hours Postdose

Population: All participants who had evaluable PK individual serum concentration samples analyzed for Cycle 1, 2 and Cycle 3-25 Olaratumab combinations for Part B.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Olaratumab + Doxorubicin (Part A)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part BCycle 3-25, Day 8289 μg/mLGeometric Coefficient of Variation 14
Olaratumab + Doxorubicin (Part A)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part BCycle 1, Day 8125 μg/mLGeometric Coefficient of Variation 55
Olaratumab + Doxorubicin (Part A)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part BCycle 2, Day 8199 μg/mLGeometric Coefficient of Variation 36
Olaratumab + Vincristine + Irinotecan (Part B)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part BCycle 1, Day 899.1 μg/mLGeometric Coefficient of Variation 65
Olaratumab + Vincristine + Irinotecan (Part B)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part BCycle 2, Day 8230 μg/mLGeometric Coefficient of Variation 17
Olaratumab + Vincristine + Irinotecan (Part B)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part BCycle 3-25, Day 8348 μg/mLGeometric Coefficient of Variation 15
Secondary

PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part C

PK: Trough serum concentration (Cmin) of Olaratumab was reported. A sample was collected every other cycle from cycles 1, 2, 3-25.

Time frame: Cycles 1, 2, 3-25; Day 8: 336 Hours Postdose

Population: All participants who had evaluable PK individual serum concentration samples analyzed for Cycle 1, 2 and Cycle 3-25 Olaratumab combinations for Part C.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Olaratumab + Vincristine + Irinotecan (Part A)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part CCycle 2, Day 8141 μg/mLGeometric Coefficient of Variation 18
Olaratumab + Vincristine + Irinotecan (Part A)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part CCycle 1, Day 890.3 μg/mLGeometric Coefficient of Variation 33
Olaratumab + Vincristine + Irinotecan (Part A)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part CCycle 3-25, Day 8156 μg/mLGeometric Coefficient of Variation 24
Olaratumab + Ifosfamide (Part A)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part CCycle 2, Day 8134 μg/mLGeometric Coefficient of Variation 54
Olaratumab + Ifosfamide (Part A)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part CCycle 1, Day 883.7 μg/mLGeometric Coefficient of Variation 8
Olaratumab + Ifosfamide (Part A)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part CCycle 3-25, Day 883.7 μg/mLGeometric Coefficient of Variation 48
Olaratumab + Doxorubicin (Part A)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part CCycle 1, Day 8124 μg/mLGeometric Coefficient of Variation 32
Olaratumab + Doxorubicin (Part A)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part CCycle 3-25, Day 8NA μg/mL
Olaratumab + Doxorubicin (Part A)PK: Trough Serum Minimum Concentration (Cmin) of Olaratumab Part CCycle 2, Day 8NA μg/mL
Secondary

Progression Free Survival (PFS)

Progression-free survival (PFS) is defined as the time from baseline to the first date of radiological disease progression or death due to any cause. Progressive disease (PD) according to Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 is defined as at least a 20% increase in the sum of the diameters of target lesions, taking as reference the smallest sum on study (including the baseline sum if that is the smallest). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 millimeters (mm). The appearance of one or more new lesions is also considered progression. If participant started new treatment before PD, the participant was censored at the date of last tumor assessment prior to new therapy. If treatment was discontinued for reasons other than PD and no further assessment, censoring occurred at last tumor assessment.

Time frame: Baseline to radiological disease progression or death from any cause (Up to 2 Years)

Population: All participants who received at least one dose of study drug. Censored participants: Parts A-C include arms: Olaratumab + Vincristine + Irinotecan, Olaratumab + Ifosfamide and Olaratumab + Doxorubicin. Part A censored participants are 2, 2, and 2; Part B censored participants are 2, 2, and 1 and Part C censored participants are 2,1, and 4.

ArmMeasureValue (MEDIAN)
Olaratumab + Vincristine + Irinotecan (Part A)Progression Free Survival (PFS)1.54 Months
Olaratumab + Ifosfamide (Part A)Progression Free Survival (PFS)1.38 Months
Olaratumab + Doxorubicin (Part A)Progression Free Survival (PFS)1.26 Months
Olaratumab + Vincristine + Irinotecan (Part B)Progression Free Survival (PFS)1.28 Months
Olaratumab + Ifosfamide (Part B)Progression Free Survival (PFS)1.25 Months
Olaratumab + Doxorubicin (Part B)Progression Free Survival (PFS)NA Months
Olaratumab + Vincristine + Irinotecan (Part C)Progression Free Survival (PFS)4.07 Months
Olaratumab + Ifosfamide (Part C)Progression Free Survival (PFS)4.88 Months
Olaratumab + Doxorubicin (Part C)Progression Free Survival (PFS)5.52 Months

Source: ClinicalTrials.gov · Data processed: Mar 9, 2026