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Phase 1/2 Study of Enzastaurin in Newly Diagnosed Glioblastoma Multiforme (GBM) and Gliosarcoma (GS) Patients

Phase 1/2 Study of Enzastaurin Plus Temozolomide During and Following Radiation Therapy in Patients With Newly Diagnosed Glioblastoma Multiforme or Gliosarcoma

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00402116
Enrollment
72
Registered
2006-11-22
Start date
2006-09-30
Completion date
2009-12-31
Last updated
2020-08-06

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

Conditions

Glioblastoma, Glioblastoma Multiforme, Gliosarcoma

Brief summary

There will be 2 phases in this study. Patients will either be enrolled to the first phase or to the second phase, depending upon when they enroll into the study. The first phase of this study is done to evaluate the safety of enzastaurin in patients. This is done by gradually increasing the dose of the drug in small groups of patients and watching closely for side effects. In the second phase of the study, the dose determined to be safe will be used with temozolomide during and following radiation therapy to see if the combination can help patients with brain tumors live longer.

Interventions

DRUGenzastaurin

Phase 1 - 250 mg Cohort 1 with one dose escalation allowed to 500 mg for Cohort 2, oral, daily, 6 weeks then twelve 28 day cycles Phase 2 - Phase 1 established dose, oral, daily, 6 weeks then twelve 28 day cycles

DRUGtemozolomide

75 milligrams per meter squared (mg/m\^2), oral, daily, 6 weeks then 200 mg/m\^2, oral, daily, twelve 28 day cycles

RADIATIONradiation therapy

1.8-2.0 Gy x 30 fractions, 5 days/week, for 6 weeks

Sponsors

University of California, San Francisco
CollaboratorOTHER
Eli Lilly and Company
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

* Patients must have a histologically confirmed diagnosis of intracranial glioblastoma multiforme (GBM) or gliosarcoma (GS). * Biopsy or resection must have been performed no more than 5 weeks prior to treatment. * An MRI or CT scan must be obtained within 14 days prior to treatment. * Patients must not have received prior drug therapy for brain tumors. * Patients must have adequate organ function demonstrated by lab tests within 14 days prior to treatment.

Exclusion criteria

* Patients will be excluded if unable to swallow tablets. * Patients will be excluded if unable to discontinue use of enzyme inducing antiepileptic drugs or have been off of these agents less than 2 weeks prior to treatment (i.e. phenytoin (Dilantin®), carbamazepine, etc.). * Patients will be excluded if have active infection. * Patients will be excluded if have a significant medical illness that, in the investigator's opinion, cannot be adequately controlled with appropriate therapy or would compromise the patient's ability to tolerate this therapy. * Patients will be excluded if they have concurrent therapy with an anticoagulant. If the patient requires anticoagulant therapy after starting treatment, the patient may remain on study but should be monitored carefully.

Design outcomes

Primary

MeasureTime frameDescription
Phase 1- Determination of the Maximum Tolerated Dose (MTD) of EnzastaurinUntil MTD can be determined (up to 12 cycles, 28 days per cycle)Phase 1- dose escalation of enzastaurin in 2 cohorts up to 6 participants each in order to assess MTD. After radiation/enzastaurin 250 mg per day/temozolomide 75 mg/m\^2 therapy, if no more than 1 of 6 patients experienced a dose-limiting toxicity (DLT) or tumor progression, participants completed one 28-day cycle. If no significant toxicity after the first cycle, participants received subsequent cycles. If no more than 1 of the 6 patients treated at 250 mg of enzastaurin experienced a DLT, up to 6 more patients could be entered at escalated dose cohort of enzastaurin (500 mg).
Phase 1 and Phase 2 - Overall Survival (OS)Baseline to death from any cause (Up to 48 weeks)OS is the time from surgical diagnosis to the date of death from any cause. For participants who were alive, OS was censored at the last contact.

Secondary

MeasureTime frameDescription
Phase 1 - Response Rate With Macdonald CriteriaBaseline, following radiation, every other cycle (up to 12 cycles, 28 days per cycle)Response categories: complete response (CR): disappearance of all enhancing tumor on consecutive magnetic resonance imaging (MRI) scans at least 1 month apart, off steroids, and neurologically stable or improved. Partial response (PR): 50% reduction in size of enhancing tumor on consecutive MRI scans at least 1 month apart, steroids stable or reduced, and neurologically stable or improved. Progressive disease (PD): \>25% increase in size of enhancing tumor or any new tumor on MRI scans, or neurologically worse, and steroids stable or increased. Stable disease (SD): all other situations.
Phase 2 - Number of Participants With Adverse Events (AEs)Every cycle (28 days per cycle)Summaries of serious AEs (SAEs) and all other non-serious AEs are located in the Reported Adverse Event Module.
Number of Participants Undergoing Magnetic Resonance Imaging/Magnetic Resonance Spectroscopy (MRI/MRS) for Clinical Evaluation at BaselineEach radiologic assessment (up to 12 cycles, 28 days per cycle)Number of patients having MRI/MRS for clinical evaluation with baseline assessment.
Phase 1 and 2 - Progression-Free Survival (PFS)Baseline to measured progressive disease (up to 12 cycles, 28 days per cycle)PFS was defined as the time from date of first dose to the first observation of disease progression, or death due to any cause.
Phase 1 - Number of Participants With Adverse Events (AEs)Every cycle (up to 12 cycles, 28 days per cycle)Summaries of serious AEs (SAEs) and all other non-serious AEs are located in the Reported Adverse Event Module.
M.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Every cycle (up to 12 cycles, 28 days per cycle)General and brain tumor-specific symptoms each assessed on a scale of 0 to 10, with a higher score representing higher symptom burden. The 4 symptom scales reported as changing over the course of the study are listed here.
Phase 1- Pharmacokinetics (PK): Maximum Observed Drug Concentration During 1 Dosing Interval at Steady State (Cmax,ss) for Enzastaurin, LY326020, and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideCycle 1 Day 22, Cycle 2 Day 5, 28 days per CycleCmax,ss was calculated using concentration versus time data of enzastaurin, LY326020, and Total Analyte (enzastaurin + LY326020) when 250 mg or 500 mg enzastaurin was administered alone or with 75 mg/m\^2 temozolomide. Data are reported as Geometric Mean and Geometric Coefficient of Variation (%).
Phase 1 and 2- Pharmacokinetics: Area Under the Concentration-Time Curve During 1 Dosing Interval at Steady State (AUCτ,ss) for Enzastaurin, LY326020 and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomidePhase 1, Cycle 1 Day 22, Cycle 2 Day 5 of a 28 day Cycle; Phase 2, Cycle 1 Day 22 of a 28 day CycleAUCτ,ss was calculated using concentration versus time data of enzastaurin, LY326020, and total analyte (enzastaurin + LY326020). Data are reported as Geometric Mean and Geometric Coefficient of Variation (%).
Functional Assessment of Cancer Therapy - Brain (FACT-Br)Every cycle (up to 12 cycles, 28 days per cycle)Total FACT-Br score includes physical well-being, social/family well-being, emotional well-being, functional well-being and additional concerns related to brain tumors. The score ranges 0 to 200, with a higher score representing better quality of life.
Phase 1 and 2: Association Between Biomarkers and Clinical OutcomeBaseline, Cycle 2, end of study (up to 12 cycles, 28 days per cycle)Phosphorylated-S6 (pS6) ribosomal protein is a biomarker that's being investigated as a potential marker for clinical outcome using 2211 or 2215 antibody to pS6. Reported here are the hazard ratios and 95% confidence intervals (CIs) for participants for whom an pS6 immunohistochemistry (IHC) score was available. The IHC assays were scored using a 0 to +3 scoring system (no positive staining was scored 0; at least 25% immunoreactivity of cells was scored +1; 26% to 75% was scored +2; and 76% or greater was scored +3). Hazard ratio (HR) \> 1 indicates worse outcome for that IHC score.

Countries

United States

Participant flow

Pre-assignment details

A total of 12 participants entered Phase 1 of the study. A total of 60 participants were analyzed in Phase 2 for a total of 72 participants for both phases.

Participants by arm

ArmCount
Phase 1- Cohort 1 (250 mg Enzastaurin)
Participants who received 250 mg enzastaurin in Phase I with 75 mg/m\^2 temozolomide and radiotherapy.
6
Phase 1 Cohort 2 (500 mg Enzastaurin )
Participants who received 500 mg enzastaurin in Phase I with 75 mg/m\^2 temozolomide and radiotherapy.
6
Phase 2
Participants who received 250 mg enzastaurin in Phase II with 75 mg/m\^2 temozolomide and radiotherapy.
60
Total72

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event016
Overall Studydecline related hyponatremia/tumor001
Overall StudyDisease Progression0438
Overall StudyJaw infection after surgery-other100
Overall Studymistaken thrombocytopenia001
Overall Studyother complicating disease002
Overall StudyTreatment completed per protocol112
Overall StudyWithdrawal by Subject105

Baseline characteristics

CharacteristicPhase 1- Cohort 1 (250 mg Enzastaurin)Phase 1 Cohort 2 (500 mg Enzastaurin )Phase 2Total
Age, Continuous48.0 years
STANDARD_DEVIATION 7.54
52.5 years
STANDARD_DEVIATION 13.84
55.3 years
STANDARD_DEVIATION 10.95
54.7 years
STANDARD_DEVIATION 10.85
Race/Ethnicity, Customized
Asian
0 Participants1 Participants4 Participants5 Participants
Race/Ethnicity, Customized
Unknown
0 Participants2 Participants4 Participants6 Participants
Race/Ethnicity, Customized
White
6 Participants3 Participants52 Participants61 Participants
Region of Enrollment
United States
6 Participants6 Participants60 Participants72 Participants
Sex: Female, Male
Female
1 Participants3 Participants17 Participants21 Participants
Sex: Female, Male
Male
5 Participants3 Participants43 Participants51 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
6 / 66 / 660 / 60
serious
Total, serious adverse events
0 / 61 / 622 / 60

Outcome results

Primary

Phase 1 and Phase 2 - Overall Survival (OS)

OS is the time from surgical diagnosis to the date of death from any cause. For participants who were alive, OS was censored at the last contact.

Time frame: Baseline to death from any cause (Up to 48 weeks)

Population: Phase 2 participants combined with Phase 1 cohort 1 participants who also received 250 mg enzastaurin.

ArmMeasureValue (MEDIAN)
Phase 1 ParticipantsPhase 1 and Phase 2 - Overall Survival (OS)18.3 months
Primary

Phase 1- Determination of the Maximum Tolerated Dose (MTD) of Enzastaurin

Phase 1- dose escalation of enzastaurin in 2 cohorts up to 6 participants each in order to assess MTD. After radiation/enzastaurin 250 mg per day/temozolomide 75 mg/m\^2 therapy, if no more than 1 of 6 patients experienced a dose-limiting toxicity (DLT) or tumor progression, participants completed one 28-day cycle. If no significant toxicity after the first cycle, participants received subsequent cycles. If no more than 1 of the 6 patients treated at 250 mg of enzastaurin experienced a DLT, up to 6 more patients could be entered at escalated dose cohort of enzastaurin (500 mg).

Time frame: Until MTD can be determined (up to 12 cycles, 28 days per cycle)

Population: All Phase I participants who received at least one dose of study drug.

ArmMeasureValue (NUMBER)
Phase 1 ParticipantsPhase 1- Determination of the Maximum Tolerated Dose (MTD) of Enzastaurin250 milligrams (mg)
Secondary

Functional Assessment of Cancer Therapy - Brain (FACT-Br)

Total FACT-Br score includes physical well-being, social/family well-being, emotional well-being, functional well-being and additional concerns related to brain tumors. The score ranges 0 to 200, with a higher score representing better quality of life.

Time frame: Every cycle (up to 12 cycles, 28 days per cycle)

Population: All treated participants who received at least one dose of study drug in the 250 mg enzastaurin cohort from Phases 1 and 2 combined and who also provided FACT-Br data from at least 1 visit (N = 65). One participant lacked these data.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1 ParticipantsFunctional Assessment of Cancer Therapy - Brain (FACT-Br)Baseline visit153.5 units on a scaleStandard Deviation 24.08
Phase 1 ParticipantsFunctional Assessment of Cancer Therapy - Brain (FACT-Br)Radiation therapy visit156.1 units on a scaleStandard Deviation 23.3
Phase 1 ParticipantsFunctional Assessment of Cancer Therapy - Brain (FACT-Br)Cycle 1151.9 units on a scaleStandard Deviation 26.87
Phase 1 ParticipantsFunctional Assessment of Cancer Therapy - Brain (FACT-Br)Cycle 2152.0 units on a scaleStandard Deviation 30.67
Phase 1 ParticipantsFunctional Assessment of Cancer Therapy - Brain (FACT-Br)Cycle 3158.9 units on a scaleStandard Deviation 22.1
Phase 1 ParticipantsFunctional Assessment of Cancer Therapy - Brain (FACT-Br)Cycle 12163.5 units on a scaleStandard Deviation 26.67
Phase 1 ParticipantsFunctional Assessment of Cancer Therapy - Brain (FACT-Br)Cycle 4158.8 units on a scaleStandard Deviation 24.48
Phase 1 ParticipantsFunctional Assessment of Cancer Therapy - Brain (FACT-Br)Cycle 5158.3 units on a scaleStandard Deviation 26.3
Phase 1 ParticipantsFunctional Assessment of Cancer Therapy - Brain (FACT-Br)Cycle 6159.0 units on a scaleStandard Deviation 26.46
Phase 1 ParticipantsFunctional Assessment of Cancer Therapy - Brain (FACT-Br)Cycle 7164.1 units on a scaleStandard Deviation 19.45
Phase 1 ParticipantsFunctional Assessment of Cancer Therapy - Brain (FACT-Br)Cycle 8163.6 units on a scaleStandard Deviation 23.19
Phase 1 ParticipantsFunctional Assessment of Cancer Therapy - Brain (FACT-Br)Cycle 9162.0 units on a scaleStandard Deviation 21.89
Phase 1 ParticipantsFunctional Assessment of Cancer Therapy - Brain (FACT-Br)Cycle 10159.3 units on a scaleStandard Deviation 27.02
Phase 1 ParticipantsFunctional Assessment of Cancer Therapy - Brain (FACT-Br)Cycle 11158.2 units on a scaleStandard Deviation 24.98
Secondary

M.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)

General and brain tumor-specific symptoms each assessed on a scale of 0 to 10, with a higher score representing higher symptom burden. The 4 symptom scales reported as changing over the course of the study are listed here.

Time frame: Every cycle (up to 12 cycles, 28 days per cycle)

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1 ParticipantsM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 82.6 units on a scaleStandard Deviation 2.4
Phase 1 ParticipantsM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Radiation therapy visit3.3 units on a scaleStandard Deviation 2.1
Phase 1 ParticipantsM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Baseline2.4 units on a scaleStandard Deviation 2.1
Phase 1 ParticipantsM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 53.3 units on a scaleStandard Deviation 2.5
Phase 1 ParticipantsM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 101.9 units on a scaleStandard Deviation 1.9
Phase 1 ParticipantsM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 23.7 units on a scaleStandard Deviation 2.7
Phase 1 ParticipantsM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 33.2 units on a scaleStandard Deviation 2.5
Phase 1 ParticipantsM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 62.9 units on a scaleStandard Deviation 2.4
Phase 1 ParticipantsM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 113.0 units on a scaleStandard Deviation 2.8
Phase 1 ParticipantsM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 13.6 units on a scaleStandard Deviation 2.5
Phase 1 ParticipantsM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 121.7 units on a scaleStandard Deviation 1.8
Phase 1 ParticipantsM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 72.8 units on a scaleStandard Deviation 2.4
Phase 1 ParticipantsM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 92.8 units on a scaleStandard Deviation 2.5
Phase 1 ParticipantsM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 42.6 units on a scaleStandard Deviation 2.1
Phase 1 Cohort 2 (500 mg Enzastaurin )M.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 12.4 units on a scaleStandard Deviation 2.6
Phase 1 Cohort 2 (500 mg Enzastaurin )M.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 81.4 units on a scaleStandard Deviation 1.5
Phase 1 Cohort 2 (500 mg Enzastaurin )M.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 91.8 units on a scaleStandard Deviation 1.6
Phase 1 Cohort 2 (500 mg Enzastaurin )M.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 101.5 units on a scaleStandard Deviation 1.9
Phase 1 Cohort 2 (500 mg Enzastaurin )M.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 32.0 units on a scaleStandard Deviation 1.9
Phase 1 Cohort 2 (500 mg Enzastaurin )M.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Baseline1.8 units on a scaleStandard Deviation 2.6
Phase 1 Cohort 2 (500 mg Enzastaurin )M.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 41.9 units on a scaleStandard Deviation 1.6
Phase 1 Cohort 2 (500 mg Enzastaurin )M.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Radiation therapy visit2.2 units on a scaleStandard Deviation 2.3
Phase 1 Cohort 2 (500 mg Enzastaurin )M.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 52.1 units on a scaleStandard Deviation 2.4
Phase 1 Cohort 2 (500 mg Enzastaurin )M.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 121.2 units on a scaleStandard Deviation 0.9
Phase 1 Cohort 2 (500 mg Enzastaurin )M.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 61.6 units on a scaleStandard Deviation 1.3
Phase 1 Cohort 2 (500 mg Enzastaurin )M.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 22.5 units on a scaleStandard Deviation 3
Phase 1 Cohort 2 (500 mg Enzastaurin )M.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 71.4 units on a scaleStandard Deviation 1.3
Phase 1 Cohort 2 (500 mg Enzastaurin )M.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 111.6 units on a scaleStandard Deviation 2.6
Enzastaurin 250 mg Phase 1 and 2 Combined-AppetiteM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 91.0 units on a scaleStandard Deviation 1.9
Enzastaurin 250 mg Phase 1 and 2 Combined-AppetiteM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 11.6 units on a scaleStandard Deviation 2.4
Enzastaurin 250 mg Phase 1 and 2 Combined-AppetiteM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 21.8 units on a scaleStandard Deviation 2.5
Enzastaurin 250 mg Phase 1 and 2 Combined-AppetiteM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 31.4 units on a scaleStandard Deviation 2.3
Enzastaurin 250 mg Phase 1 and 2 Combined-AppetiteM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 41.0 units on a scaleStandard Deviation 1.8
Enzastaurin 250 mg Phase 1 and 2 Combined-AppetiteM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 50.6 units on a scaleStandard Deviation 1.6
Enzastaurin 250 mg Phase 1 and 2 Combined-AppetiteM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 60.7 units on a scaleStandard Deviation 1.2
Enzastaurin 250 mg Phase 1 and 2 Combined-AppetiteM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 70.7 units on a scaleStandard Deviation 1.4
Enzastaurin 250 mg Phase 1 and 2 Combined-AppetiteM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 80.5 units on a scaleStandard Deviation 0.9
Enzastaurin 250 mg Phase 1 and 2 Combined-AppetiteM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 100.4 units on a scaleStandard Deviation 1.2
Enzastaurin 250 mg Phase 1 and 2 Combined-AppetiteM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 110.2 units on a scaleStandard Deviation 0.6
Enzastaurin 250 mg Phase 1 and 2 Combined-AppetiteM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 120.4 units on a scaleStandard Deviation 0.7
Enzastaurin 250 mg Phase 1 and 2 Combined-AppetiteM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Baseline0.3 units on a scaleStandard Deviation 1.1
Enzastaurin 250 mg Phase 1 and 2 Combined-AppetiteM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Radiation therapy visit1.0 units on a scaleStandard Deviation 1.9
Enzastaurin 250 mg Phase 1 and 2 Combined-ConcentrationM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 21.9 units on a scaleStandard Deviation 2.2
Enzastaurin 250 mg Phase 1 and 2 Combined-ConcentrationM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 110.9 units on a scaleStandard Deviation 1.6
Enzastaurin 250 mg Phase 1 and 2 Combined-ConcentrationM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 61.2 units on a scaleStandard Deviation 1.7
Enzastaurin 250 mg Phase 1 and 2 Combined-ConcentrationM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 51.6 units on a scaleStandard Deviation 2.1
Enzastaurin 250 mg Phase 1 and 2 Combined-ConcentrationM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 11.8 units on a scaleStandard Deviation 2.2
Enzastaurin 250 mg Phase 1 and 2 Combined-ConcentrationM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 121.2 units on a scaleStandard Deviation 1.6
Enzastaurin 250 mg Phase 1 and 2 Combined-ConcentrationM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 41.5 units on a scaleStandard Deviation 1.6
Enzastaurin 250 mg Phase 1 and 2 Combined-ConcentrationM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 31.5 units on a scaleStandard Deviation 1.8
Enzastaurin 250 mg Phase 1 and 2 Combined-ConcentrationM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Radiation therapy visit1.4 units on a scaleStandard Deviation 1.7
Enzastaurin 250 mg Phase 1 and 2 Combined-ConcentrationM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 91.1 units on a scaleStandard Deviation 1.5
Enzastaurin 250 mg Phase 1 and 2 Combined-ConcentrationM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 101.2 units on a scaleStandard Deviation 1.3
Enzastaurin 250 mg Phase 1 and 2 Combined-ConcentrationM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Baseline1.2 units on a scaleStandard Deviation 1.9
Enzastaurin 250 mg Phase 1 and 2 Combined-ConcentrationM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 81.1 units on a scaleStandard Deviation 1.3
Enzastaurin 250 mg Phase 1 and 2 Combined-ConcentrationM.D. Anderson Symptom Inventory - Brain Tumor (MDASI-BT)Cycle 71.3 units on a scaleStandard Deviation 1.6
Secondary

Number of Participants Undergoing Magnetic Resonance Imaging/Magnetic Resonance Spectroscopy (MRI/MRS) for Clinical Evaluation at Baseline

Number of patients having MRI/MRS for clinical evaluation with baseline assessment.

Time frame: Each radiologic assessment (up to 12 cycles, 28 days per cycle)

Population: 35 patients underwent MRI and had baseline measurement.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Phase 1 ParticipantsNumber of Participants Undergoing Magnetic Resonance Imaging/Magnetic Resonance Spectroscopy (MRI/MRS) for Clinical Evaluation at Baseline35 Participants
Secondary

Phase 1 and 2: Association Between Biomarkers and Clinical Outcome

Phosphorylated-S6 (pS6) ribosomal protein is a biomarker that's being investigated as a potential marker for clinical outcome using 2211 or 2215 antibody to pS6. Reported here are the hazard ratios and 95% confidence intervals (CIs) for participants for whom an pS6 immunohistochemistry (IHC) score was available. The IHC assays were scored using a 0 to +3 scoring system (no positive staining was scored 0; at least 25% immunoreactivity of cells was scored +1; 26% to 75% was scored +2; and 76% or greater was scored +3). Hazard ratio (HR) \> 1 indicates worse outcome for that IHC score.

Time frame: Baseline, Cycle 2, end of study (up to 12 cycles, 28 days per cycle)

Population: Combined Phases 1 and 2 populations for whom IHC scores were obtained. HR \> 1 indicates poorer overall survival for that IHC score.

ArmMeasureGroupValue (NUMBER)
Phase 1 ParticipantsPhase 1 and 2: Association Between Biomarkers and Clinical OutcomeS6 2211 score1.70 Hazard ratio
Phase 1 ParticipantsPhase 1 and 2: Association Between Biomarkers and Clinical OutcomeS6 2215 score1.69 Hazard ratio
Secondary

Phase 1 and 2- Pharmacokinetics: Area Under the Concentration-Time Curve During 1 Dosing Interval at Steady State (AUCτ,ss) for Enzastaurin, LY326020 and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without Temozolomide

AUCτ,ss was calculated using concentration versus time data of enzastaurin, LY326020, and total analyte (enzastaurin + LY326020). Data are reported as Geometric Mean and Geometric Coefficient of Variation (%).

Time frame: Phase 1, Cycle 1 Day 22, Cycle 2 Day 5 of a 28 day Cycle; Phase 2, Cycle 1 Day 22 of a 28 day Cycle

Population: Pharmacokinetic analyses were conducted for individual participants who received at least one dose of study drug and had pharmacokinetic samples collected. In Phase I, one participant dose was reduced from 500 mg to 250 mg after Cycle 1 Day 1 so was included in 250 mg dose group (N=7).

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Phase 1 ParticipantsPhase 1 and 2- Pharmacokinetics: Area Under the Concentration-Time Curve During 1 Dosing Interval at Steady State (AUCτ,ss) for Enzastaurin, LY326020 and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideEnzastaurin5390 nmol•h/LGeometric Coefficient of Variation 57
Phase 1 ParticipantsPhase 1 and 2- Pharmacokinetics: Area Under the Concentration-Time Curve During 1 Dosing Interval at Steady State (AUCτ,ss) for Enzastaurin, LY326020 and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideTotal Analyte12800 nmol•h/LGeometric Coefficient of Variation 41
Phase 1 ParticipantsPhase 1 and 2- Pharmacokinetics: Area Under the Concentration-Time Curve During 1 Dosing Interval at Steady State (AUCτ,ss) for Enzastaurin, LY326020 and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideLY3260207260 nmol•h/LGeometric Coefficient of Variation 35
Phase 1 Cohort 2 (500 mg Enzastaurin )Phase 1 and 2- Pharmacokinetics: Area Under the Concentration-Time Curve During 1 Dosing Interval at Steady State (AUCτ,ss) for Enzastaurin, LY326020 and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideLY3260207380 nmol•h/LGeometric Coefficient of Variation 22
Phase 1 Cohort 2 (500 mg Enzastaurin )Phase 1 and 2- Pharmacokinetics: Area Under the Concentration-Time Curve During 1 Dosing Interval at Steady State (AUCτ,ss) for Enzastaurin, LY326020 and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideEnzastaurin5270 nmol•h/LGeometric Coefficient of Variation 36
Phase 1 Cohort 2 (500 mg Enzastaurin )Phase 1 and 2- Pharmacokinetics: Area Under the Concentration-Time Curve During 1 Dosing Interval at Steady State (AUCτ,ss) for Enzastaurin, LY326020 and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideTotal Analyte12800 nmol•h/LGeometric Coefficient of Variation 19
Enzastaurin 250 mg Phase 1 and 2 Combined-AppetitePhase 1 and 2- Pharmacokinetics: Area Under the Concentration-Time Curve During 1 Dosing Interval at Steady State (AUCτ,ss) for Enzastaurin, LY326020 and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideLY32602012800 nmol•h/LGeometric Coefficient of Variation 38
Enzastaurin 250 mg Phase 1 and 2 Combined-AppetitePhase 1 and 2- Pharmacokinetics: Area Under the Concentration-Time Curve During 1 Dosing Interval at Steady State (AUCτ,ss) for Enzastaurin, LY326020 and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideEnzastaurin7720 nmol•h/LGeometric Coefficient of Variation 91
Enzastaurin 250 mg Phase 1 and 2 Combined-AppetitePhase 1 and 2- Pharmacokinetics: Area Under the Concentration-Time Curve During 1 Dosing Interval at Steady State (AUCτ,ss) for Enzastaurin, LY326020 and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideTotal Analyte21400 nmol•h/LGeometric Coefficient of Variation 53
Enzastaurin 250 mg Phase 1 and 2 Combined-ConcentrationPhase 1 and 2- Pharmacokinetics: Area Under the Concentration-Time Curve During 1 Dosing Interval at Steady State (AUCτ,ss) for Enzastaurin, LY326020 and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideEnzastaurin16600 nmol•h/LGeometric Coefficient of Variation 274
Enzastaurin 250 mg Phase 1 and 2 Combined-ConcentrationPhase 1 and 2- Pharmacokinetics: Area Under the Concentration-Time Curve During 1 Dosing Interval at Steady State (AUCτ,ss) for Enzastaurin, LY326020 and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideTotal Analyte21300 nmol•h/LGeometric Coefficient of Variation 256
Enzastaurin 250 mg Phase 1 and 2 Combined-ConcentrationPhase 1 and 2- Pharmacokinetics: Area Under the Concentration-Time Curve During 1 Dosing Interval at Steady State (AUCτ,ss) for Enzastaurin, LY326020 and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideLY3260204240 nmol•h/LGeometric Coefficient of Variation 283
Enzastaurin 500 mg + TemozolomidePhase 1 and 2- Pharmacokinetics: Area Under the Concentration-Time Curve During 1 Dosing Interval at Steady State (AUCτ,ss) for Enzastaurin, LY326020 and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideLY3260208650 nmol•h/LGeometric Coefficient of Variation 95
Enzastaurin 500 mg + TemozolomidePhase 1 and 2- Pharmacokinetics: Area Under the Concentration-Time Curve During 1 Dosing Interval at Steady State (AUCτ,ss) for Enzastaurin, LY326020 and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideEnzastaurin10100 nmol•h/LGeometric Coefficient of Variation 133
Enzastaurin 500 mg + TemozolomidePhase 1 and 2- Pharmacokinetics: Area Under the Concentration-Time Curve During 1 Dosing Interval at Steady State (AUCτ,ss) for Enzastaurin, LY326020 and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideTotal Analyte18900 nmol•h/LGeometric Coefficient of Variation 114
Secondary

Phase 1 and 2 - Progression-Free Survival (PFS)

PFS was defined as the time from date of first dose to the first observation of disease progression, or death due to any cause.

Time frame: Baseline to measured progressive disease (up to 12 cycles, 28 days per cycle)

Population: Phase 2 participants combined with Phase 1 cohort 1 participants who also received 250 mg enzastaurin.

ArmMeasureValue (MEDIAN)
Phase 1 ParticipantsPhase 1 and 2 - Progression-Free Survival (PFS)10.6 months
Secondary

Phase 1 - Number of Participants With Adverse Events (AEs)

Summaries of serious AEs (SAEs) and all other non-serious AEs are located in the Reported Adverse Event Module.

Time frame: Every cycle (up to 12 cycles, 28 days per cycle)

Population: All Phase I participants who received at least one dose of study drug.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Phase 1 ParticipantsPhase 1 - Number of Participants With Adverse Events (AEs)0 Participants
Phase 1 Cohort 2 (500 mg Enzastaurin )Phase 1 - Number of Participants With Adverse Events (AEs)1 Participants
Secondary

Phase 1- Pharmacokinetics (PK): Maximum Observed Drug Concentration During 1 Dosing Interval at Steady State (Cmax,ss) for Enzastaurin, LY326020, and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without Temozolomide

Cmax,ss was calculated using concentration versus time data of enzastaurin, LY326020, and Total Analyte (enzastaurin + LY326020) when 250 mg or 500 mg enzastaurin was administered alone or with 75 mg/m\^2 temozolomide. Data are reported as Geometric Mean and Geometric Coefficient of Variation (%).

Time frame: Cycle 1 Day 22, Cycle 2 Day 5, 28 days per Cycle

Population: Pharmacokinetic analyses were conducted for individual participants who received at least one dose of study drug and had pharmacokinetic samples collected. One participant dose was reduced from 500 mg to 250 mg after Cycle 1 Day 1 so is included in the 250 mg dose group (N=7).

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Phase 1 ParticipantsPhase 1- Pharmacokinetics (PK): Maximum Observed Drug Concentration During 1 Dosing Interval at Steady State (Cmax,ss) for Enzastaurin, LY326020, and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideEnzastaurin504 nanomole per liter (nmol/L)Geometric Coefficient of Variation 52
Phase 1 ParticipantsPhase 1- Pharmacokinetics (PK): Maximum Observed Drug Concentration During 1 Dosing Interval at Steady State (Cmax,ss) for Enzastaurin, LY326020, and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideTotal Analyte853 nanomole per liter (nmol/L)Geometric Coefficient of Variation 44
Phase 1 ParticipantsPhase 1- Pharmacokinetics (PK): Maximum Observed Drug Concentration During 1 Dosing Interval at Steady State (Cmax,ss) for Enzastaurin, LY326020, and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideLY326020370 nanomole per liter (nmol/L)Geometric Coefficient of Variation 38
Phase 1 Cohort 2 (500 mg Enzastaurin )Phase 1- Pharmacokinetics (PK): Maximum Observed Drug Concentration During 1 Dosing Interval at Steady State (Cmax,ss) for Enzastaurin, LY326020, and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideEnzastaurin458 nanomole per liter (nmol/L)Geometric Coefficient of Variation 41
Phase 1 Cohort 2 (500 mg Enzastaurin )Phase 1- Pharmacokinetics (PK): Maximum Observed Drug Concentration During 1 Dosing Interval at Steady State (Cmax,ss) for Enzastaurin, LY326020, and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideTotal Analyte821 nanomole per liter (nmol/L)Geometric Coefficient of Variation 28
Phase 1 Cohort 2 (500 mg Enzastaurin )Phase 1- Pharmacokinetics (PK): Maximum Observed Drug Concentration During 1 Dosing Interval at Steady State (Cmax,ss) for Enzastaurin, LY326020, and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideLY326020392 nanomole per liter (nmol/L)Geometric Coefficient of Variation 27
Enzastaurin 250 mg Phase 1 and 2 Combined-AppetitePhase 1- Pharmacokinetics (PK): Maximum Observed Drug Concentration During 1 Dosing Interval at Steady State (Cmax,ss) for Enzastaurin, LY326020, and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideLY326020198 nanomole per liter (nmol/L)Geometric Coefficient of Variation 274
Enzastaurin 250 mg Phase 1 and 2 Combined-AppetitePhase 1- Pharmacokinetics (PK): Maximum Observed Drug Concentration During 1 Dosing Interval at Steady State (Cmax,ss) for Enzastaurin, LY326020, and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideEnzastaurin1350 nanomole per liter (nmol/L)Geometric Coefficient of Variation 149
Enzastaurin 250 mg Phase 1 and 2 Combined-AppetitePhase 1- Pharmacokinetics (PK): Maximum Observed Drug Concentration During 1 Dosing Interval at Steady State (Cmax,ss) for Enzastaurin, LY326020, and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideTotal Analyte1570 nanomole per liter (nmol/L)Geometric Coefficient of Variation 159
Enzastaurin 250 mg Phase 1 and 2 Combined-ConcentrationPhase 1- Pharmacokinetics (PK): Maximum Observed Drug Concentration During 1 Dosing Interval at Steady State (Cmax,ss) for Enzastaurin, LY326020, and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideEnzastaurin719 nanomole per liter (nmol/L)Geometric Coefficient of Variation 114
Enzastaurin 250 mg Phase 1 and 2 Combined-ConcentrationPhase 1- Pharmacokinetics (PK): Maximum Observed Drug Concentration During 1 Dosing Interval at Steady State (Cmax,ss) for Enzastaurin, LY326020, and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideTotal Analyte1010 nanomole per liter (nmol/L)Geometric Coefficient of Variation 114
Enzastaurin 250 mg Phase 1 and 2 Combined-ConcentrationPhase 1- Pharmacokinetics (PK): Maximum Observed Drug Concentration During 1 Dosing Interval at Steady State (Cmax,ss) for Enzastaurin, LY326020, and Total Analyte (Enzastaurin + LY326020) When Enzastaurin Administered With or Without TemozolomideLY326020465 nanomole per liter (nmol/L)Geometric Coefficient of Variation 87
Secondary

Phase 1 - Response Rate With Macdonald Criteria

Response categories: complete response (CR): disappearance of all enhancing tumor on consecutive magnetic resonance imaging (MRI) scans at least 1 month apart, off steroids, and neurologically stable or improved. Partial response (PR): 50% reduction in size of enhancing tumor on consecutive MRI scans at least 1 month apart, steroids stable or reduced, and neurologically stable or improved. Progressive disease (PD): \>25% increase in size of enhancing tumor or any new tumor on MRI scans, or neurologically worse, and steroids stable or increased. Stable disease (SD): all other situations.

Time frame: Baseline, following radiation, every other cycle (up to 12 cycles, 28 days per cycle)

Population: Efficacy analysis in phase I was not conducted. Instead, participants who took 250mg in phase I were pooled with phase II participants and are presented in other outcome measures (2 and 8, respectively) in this record. Thus there were 0 participants for this measure.

Secondary

Phase 2 - Number of Participants With Adverse Events (AEs)

Summaries of serious AEs (SAEs) and all other non-serious AEs are located in the Reported Adverse Event Module.

Time frame: Every cycle (28 days per cycle)

Population: All Phase 2 participants who received at least one dose of study drug.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Phase 1 ParticipantsPhase 2 - Number of Participants With Adverse Events (AEs)22 Participants

Source: ClinicalTrials.gov · Data processed: Feb 14, 2026