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Study of Enzastaurin With 5-Fluorouracil/Leucovorin (5-FU/LV) Plus Bevacizumab as Maintenance Regimen Following First Line Therapy for Metastatic Colon Cancer

A Double-Blind, Randomized, Placebo-Controlled, Phase 2 Study of Enzastaurin With 5-FU/LV Plus Bevacizumab as Maintenance Regimen Following First Line Therapy for Metastatic Colorectal Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00612586
Enrollment
117
Registered
2008-02-11
Start date
2008-02-29
Completion date
2011-11-30
Last updated
2020-07-21

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

Conditions

Colorectal Cancer

Brief summary

This study will evaluate the addition of enzastaurin to 5-FU (5-fluorouracil)/LV (leucovorin) plus bevacizumab in the maintenance of best response obtained with 6 cycles of first-line therapy consisting of 5-FU/LV + oxaliplatin (FOLFOX) or 5-FU/LV + irinotecan (FOLFIRI), plus bevacizumab in patients with Metastatic Colorectal Cancer.

Interventions

DRUGEnzastaurin

1125 milligram (mg) loading dose, then 250 mg twice daily, oral up to 1 year (yr) or until progressive disease

DRUGPlacebo

oral, daily (up to 1 yr or until progressive disease)

400 milligram per meter squared (mg/m\^2) intravenously (IV), Day 1 of 14 day cycle (up to 1 yr or until progressive disease)

DRUG5-fluorouracil (5-FU)

400 mg/m\^2 bolus then 2400 mg/m\^2 IV over 46 hours, Day 1 of 14 day cycle (up to 1 yr or until progressive disease)

5 milligram per kilogram (mg/kg) IV, Day 1 of 14 day cycle (up to 1 yr or until progressive disease)

Sponsors

Roche Pharma AG
CollaboratorINDUSTRY
Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

* Histologic diagnosis of locally advanced or metastatic colorectal cancer (CRC) that is not curable. The histology types to be included are adenocarcinoma, mucinous adenocarcinoma, signet ring, and undifferentiated. Patients with neuroendocrine carcinomas will be excluded. * Received 6 cycles (3 months \[12 weeks\]) of first-line therapy with FOLFOX or FOLFIRI, plus bevacizumab for metastatic CRC. Patients have received at least 5 cycles with bevacizumab. Patients who received 6 cycles of first-line therapy with FOLFOX or FOLFIRI, plus bevacizumab for recurrent CRC that has relapsed at least 12 months after completion of adjuvant therapy will also be included. All standard FOLFOX (FOLFIRI) regimens given on a biweekly schedule will be permitted; however, 21-day regimens will not be allowed. * No more than 4 weeks may pass between the end of first-line therapy (that is, Day 14 of Cycle 6) and randomization. * Documented evidence of tumor response of complete response (CR), partial response (PR), or stable disease (SD) by computed tomography (CT) scan or magnetic resonance imaging (MRI). Confirmation of response is not required.

Exclusion criteria

* Are unable to swallow tablets. * Have received treatment within the last 30 days with a drug that has not received regulatory approval for any indication at the time of study entry. * Have known central nervous system metastases. * Are receiving concurrent administration of any other antitumor therapy. * Patients who have significant heart, liver, kidney, or psychiatric disease or have an active infection

Design outcomes

Primary

MeasureTime frameDescription
Progression Free Survival (PFS)Randomization to measured progressive disease or death up to 17.2 monthsPFS was defined as the time from randomization to the first observation of disease progression or death due to any cause. Progressive disease was determined using a modified version of Response Evaluation Criteria in Solid Tumor (RECIST) Assessment and was defined as at least a 20% increase in sum of longest diameter of target lesions. Time to disease progression was censored at the date of death if death was due to other cause.

Secondary

MeasureTime frameDescription
Overall Survival (OS)Randomization up to 22.8 monthsOS was the duration from enrollment to death due to any cause. For participants who are alive, OS is censored at the last contact.
Number of Participants With Adverse Events (AEs)Randomization up to 17.2 monthsA summary of serious and all other non-serious AEs is located in the Reported Adverse Event module.
Overall Survival (OS) From Start of First Line TherapyStart of first line therapy (approximately 3 months prior to randomization) to date of death from any cause up to 27 months post randomizationOS was the duration from first line therapy to death due to any cause. For participants who are alive, OS is censored at the last contact.
PFS From Start of First Line TherapyStart of first line therapy to measured progressive disease or death up to 24 monthsPFS was defined as the time from first line therapy to the first observation of disease progression or death due to any cause. Progressive disease was determined using a modified version of RECIST Assessment and was defined as at least a 20% increase in sum of longest diameter of target lesions. Time to disease progression was censored at the date of death if death was due to other cause.

Countries

Austria, France, Germany, Italy, Puerto Rico, United States

Participant flow

Participants by arm

ArmCount
Enzastaurin + 5-FU/LV + Bev
Enzastaurin: Loading dose of 1125 mg orally, 3 times during Day 1 of Cycle 1 (14-day cycle); 500 mg orally, twice daily on Day 2 to Day 14 of Cycle 1 and all subsequent cycles. LV: 400 mg/m\^2 IV on Day 1 of each 14-day cycle, followed by 5-FU 400 mg/m\^2 IV bolus then 2400 mg/m\^2 IV over 46 hours, plus Bev: 5 mg/kg IV. First-line therapy for metastatic CRC received prior to entering the study: six 14-day cycles (12 weeks) folinic acid, 5-FU, and oxaliplatin (FOLFOX) or folinic acid, 5-FU, and irinotecan (FOLFIRI), plus Bev.
58
Placebo + 5-FU/LV + Bev
Placebo: administered orally 3 times during Day 1 of Cycle 1 (14 day cycle); placebo administered orally twice daily on Day 2 to Day 14 of Cycle 1 and all subsequent cycles. Leucovorin (LV): 400 mg/m\^2 administered by IV on Day 1 of each 14 day cycle, followed by 5-fluorouracil (5-FU) 400 mg/m\^2 IV bolus then 2400 mg/m\^2 IV over 46 hours, plus Bevacizumab (Bev): 5 milligrams/kilogram (mg/kg) IV. First-line therapy for CRC received prior to entering the study: six 14-day cycles (12 weeks) folinic acid, 5-fluorouracil (5-FU), and oxaliplatin (FOLFOX) or folinic acid, 5-FU, and irinotecan (FOLFIRI), plus Bev.
59
Total117

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event62
Overall StudyDeath10
Overall StudyEntry Criteria Not Met02
Overall StudyPhysician Decision12
Overall StudyProgressive Disease2624
Overall StudyRandomized and Not Treated11
Overall StudySponsor Decision11
Overall StudyWithdrawal by Subject79

Baseline characteristics

CharacteristicPlacebo + 5-FU/LV + BevTotalEnzastaurin + 5-FU/LV + Bev
Age, Continuous62.49 years
STANDARD_DEVIATION 9.48
62.52 years
STANDARD_DEVIATION 10.16
62.55 years
STANDARD_DEVIATION 10.9
Eastern Cooperative Oncology Group (ECOG) Performance Status
0
45 Participants87 Participants42 Participants
Eastern Cooperative Oncology Group (ECOG) Performance Status
1
13 Participants29 Participants16 Participants
Eastern Cooperative Oncology Group (ECOG) Performance Status
2
1 Participants1 Participants0 Participants
Initial Pathological Diagnosis
Adenocarcinoma, Colon
54 Participants109 Participants55 Participants
Initial Pathological Diagnosis
Adenocarcinoma, Mucinous, Not Otherwise Specified
4 Participants7 Participants3 Participants
Initial Pathological Diagnosis
Unknown or Not Reported
1 Participants1 Participants0 Participants
Race/Ethnicity, Customized
African
2 Participants3 Participants1 Participants
Race/Ethnicity, Customized
Caucasian
54 Participants109 Participants55 Participants
Race/Ethnicity, Customized
Hispanic
3 Participants5 Participants2 Participants
Region of Enrollment
Austria
8 Participants13 Participants5 Participants
Region of Enrollment
France
3 Participants9 Participants6 Participants
Region of Enrollment
Germany
17 Participants29 Participants12 Participants
Region of Enrollment
Italy
16 Participants29 Participants13 Participants
Region of Enrollment
United States
15 Participants37 Participants22 Participants
Sex: Female, Male
Female
21 Participants42 Participants21 Participants
Sex: Female, Male
Male
38 Participants75 Participants37 Participants
Stage of Disease at Study Entry
I
0 Participants0 Participants0 Participants
Stage of Disease at Study Entry
IIa
1 Participants1 Participants0 Participants
Stage of Disease at Study Entry
IIb
0 Participants0 Participants0 Participants
Stage of Disease at Study Entry
IIIa
0 Participants0 Participants0 Participants
Stage of Disease at Study Entry
IIIb
0 Participants4 Participants4 Participants
Stage of Disease at Study Entry
IIIc
1 Participants3 Participants2 Participants
Stage of Disease at Study Entry
IV
52 Participants99 Participants47 Participants
Stage of Disease at Study Entry
Unknown or Not Reported
5 Participants10 Participants5 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
53 / 5752 / 58
serious
Total, serious adverse events
15 / 5711 / 58

Outcome results

Primary

Progression Free Survival (PFS)

PFS was defined as the time from randomization to the first observation of disease progression or death due to any cause. Progressive disease was determined using a modified version of Response Evaluation Criteria in Solid Tumor (RECIST) Assessment and was defined as at least a 20% increase in sum of longest diameter of target lesions. Time to disease progression was censored at the date of death if death was due to other cause.

Time frame: Randomization to measured progressive disease or death up to 17.2 months

Population: Intent-to-Treat (ITT) Population: All randomized participants.

ArmMeasureValue (MEDIAN)
Enzastaurin + 5-FU/LV + BevProgression Free Survival (PFS)5.8 months
Placebo + 5FU/LV + BevProgression Free Survival (PFS)8.1 months
p-value: 0.8956Log Rank
Secondary

Number of Participants With Adverse Events (AEs)

A summary of serious and all other non-serious AEs is located in the Reported Adverse Event module.

Time frame: Randomization up to 17.2 months

Population: Safety Population: All randomized participants who received at least 1 dose of study drug.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Enzastaurin + 5-FU/LV + BevNumber of Participants With Adverse Events (AEs)Serious AEs15 Participants
Enzastaurin + 5-FU/LV + BevNumber of Participants With Adverse Events (AEs)Other Non-Serious AEs53 Participants
Placebo + 5FU/LV + BevNumber of Participants With Adverse Events (AEs)Serious AEs11 Participants
Placebo + 5FU/LV + BevNumber of Participants With Adverse Events (AEs)Other Non-Serious AEs52 Participants
Secondary

Overall Survival (OS)

OS was the duration from enrollment to death due to any cause. For participants who are alive, OS is censored at the last contact.

Time frame: Randomization up to 22.8 months

Population: ITT Population: All randomized participants; Number of participants censored was 54 in Placebo + 5-FU/LV + Bev treatment group.

ArmMeasureValue (MEDIAN)
Enzastaurin + 5-FU/LV + BevOverall Survival (OS)NA months
Placebo + 5FU/LV + BevOverall Survival (OS)NA months
p-value: 0.9865Log Rank
Secondary

Overall Survival (OS) From Start of First Line Therapy

OS was the duration from first line therapy to death due to any cause. For participants who are alive, OS is censored at the last contact.

Time frame: Start of first line therapy (approximately 3 months prior to randomization) to date of death from any cause up to 27 months post randomization

Population: ITT Population: All randomized participants; Number of participants censored were 45 in Enzastaurin + 5-FU/LV + Bev treatment group and 54 in Placebo + 5-FU/LV + Bev treatment group.

ArmMeasureValue (MEDIAN)
Enzastaurin + 5-FU/LV + BevOverall Survival (OS) From Start of First Line Therapy20.0 months
Placebo + 5FU/LV + BevOverall Survival (OS) From Start of First Line TherapyNA months
Secondary

PFS From Start of First Line Therapy

PFS was defined as the time from first line therapy to the first observation of disease progression or death due to any cause. Progressive disease was determined using a modified version of RECIST Assessment and was defined as at least a 20% increase in sum of longest diameter of target lesions. Time to disease progression was censored at the date of death if death was due to other cause.

Time frame: Start of first line therapy to measured progressive disease or death up to 24 months

Population: ITT Population: All randomized participants.

ArmMeasureValue (MEDIAN)
Enzastaurin + 5-FU/LV + BevPFS From Start of First Line Therapy8.9 months
Placebo + 5FU/LV + BevPFS From Start of First Line Therapy11.3 months

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