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Study of CS-7017 in Colorectal Cancer Patients Who Have Achieved Disease Control Following First-Line Chemotherapy

A Randomized, Double-Blind Placebo-Controlled Phase 2 Study of CS-7017 in Colorectal Cancer Patients Who Have Achieved Disease Control Following First-Line Chemotherapy

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00986440
Enrollment
84
Registered
2009-09-30
Start date
2009-07-31
Completion date
2012-10-29
Last updated
2020-11-05

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

Conditions

Colorectal Cancer

Brief summary

Monotherapy treatment with CS-7017 to assess progression-free-survival (PFS) of subjects who achieved an objective response of Disease Control on first line therapy with Folinic acid (leucovorin), Fluorouracil (5-FU), Oxaliplatin (Eloxatin) known as FOLFOX; or Folinic acid (leucovorin), Fluorouracil (5-FU), irinotecan (Camptosar) known as FOLFIRI.

Interventions

CS-7017

DRUGPlacebo

Placebo

Sponsors

Daiichi Sankyo
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

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

Inclusion criteria

* Patients with histologically confirmed, metastatic CRC that have achieved confirmed maximal benefit of DC following treatment with standard first line chemotherapy of a 5-fluoropyrimidine plus either oxaliplatin or irinotecan. Patients should be entered onto this trial within 8 weeks of completing first line therapy; * If CR was not achieved: measurable disease, i.e. at minimum one unidimensionally-measurable target lesion according to RECIST (Response Evaluation Criteria in Solid Tumors); * Age \>= 18 years and Eastern Cooperative Oncology Group (ECOG) performance status (PS) =\< 2 at study entry; * Resolution of any toxic effects of prior therapy (except alopecia) to NCI CTCAE, Version 3.0, grade =\< 1; * Adequate organ and bone marrow function as evidenced by: * Haemoglobin \>= 10 g/dL (transfusion and/or growth factor support allowed); * Absolute neutrophil count (ANC) \>= 1.5 x 109/L; * Platelet count \>= 100 x 109/L; * Serum creatinine =\< 1.5 x ULN or creatinine clearance \>60 mL/min; * AST and alkaline phosphatase \<2.5 x ULN if without liver metastasis and =\< 5.0 x ULN if liver metastasis; * Total bilirubin =\< 2.0 x ULN; * Prothrombin time (PT)/International Normalised Ratio (INR) within normal limits (WNL) unless therapeutically anticoagulated; * Women of childbearing potential and men must be willing to consent to using highly effective methods of contraception (eg, hormonal contraceptives, bilateral tubal ligation, barrier with spermicide, intrauterine device) while on treatment and for at least 3 months thereafter; * Males with the potential to father children must use two of the following methods of contraception acceptable for the study (e.g. hormonal contraceptives, bilateral tubal ligation, barrier with spermicide, intrauterine device) while on trial treatment and for at least 3 months thereafter. * All female subjects of childbearing potential must have a negative pregnancy test (plasma or urine) result within 7 days before initiating study treatment; * Baseline laboratory tests and tumor assessments must have been performed within 2 weeks before initiating study treatment; * Subjects must be fully informed about their illness and the investigational nature of the study protocol (including foreseeable risks and possible side effects) and must sign and date an IEC-approved ICF before performance of any study specific procedures or tests.

Exclusion criteria

* Anticipation of need for a major surgical procedure or RT during the study; * Treatment with chemotherapy, hormonal therapy, minor surgery, or any investigational agent within 4 weeks before study enrolment. Treatment with immunotherapy, biological therapy, or major surgery within 6 weeks before study enrolment. Treatment with RT within 1 week before study enrolment. * History of any of the following conditions: diabetes mellitus requiring treatment with insulin or oral agents; * Concomitant use of other TZDs; * Myocardial infarction with significant impairment of cardiac function (e.g., ejection fraction =\< 50%); severe/unstable angina pectoris; coronary/peripheral artery bypass graft; congestive heart failure; cerebrovascular accident (CVA) or transient ischemic attack (TIA), pulmonary embolism, or other clinically significant thromboembolic event; clinically significant pulmonary disease (e.g., severe chronic obstructive pulmonary disease \[COPD\] or asthma); * Brain metastasis; an uncontrolled seizure disorder; spinal cord compression; or carcinomatous meningitis; * Pleural or pericardial effusion. Subjects with minimal pleural effusion may be eligible upon request by Investigator and approval by Sponsor; * Clinically significant active infection that requires antibiotic therapy or Human Immunodeficiency Virus (HIV) positive subjects receiving antiretroviral therapy; * Pregnant or breast feeding; * Known history of severe hypersensitivity reactions to any of the components of CS 7017 formulations; * Serious intercurrent medical or psychiatric illnesses or any other conditions that in the opinion of the Investigator would impair the ability to give informed consent or unacceptably reduce protocol compliance or safety of the study treatment;

Design outcomes

Primary

MeasureTime frameDescription
Percentage Rate of Progression-free Survival at 18 Weeks Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line Chemotherapy18 weeks postdoseProgression-free survival (PFS) was defined as the time from enrollment to the date of the first objective documentation of disease progression or death resulting from any cause, whichever comes first. Progression was defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) as at least a 20% increase in the sum of diameters of target lesions.

Secondary

MeasureTime frameDescription
Percentage Rate of Progression-free Survival Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyAt 12, 24, and 30 weeks postdoseProgression-free survival (PFS) was defined as the time from enrollment to the date of the first objective documentation of disease progression or death resulting from any cause, whichever comes first. Progression was defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) as at least a 20% increase in the sum of diameters of target lesions.
Percentage Rate of Overall Survival Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyAt 3, 6, 9, and 12 months postdoseOverall survival (OS) was defined as the time from the date of enrollment to the date of death and assessed by Kaplan Meier analysis.
Best Overall Response and Objective Response Rate Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyFrom baseline up to disease progression or the development of unacceptable toxicity (whichever occurs first), up to approximately 3 years 3 monthsThe best overall response was defined as the best response (in the order of confirmed complete response \[CR\], confirmed partial response \[PR\], unconfirmed CR, unconfirmed PR, stable disease \[SD\], and progressive disease \[PD\]) among all overall responses recorded from the start of treatment until the participant withdrew from the study. If there was no tumor assessment after the first dose of study drug, the best overall response was classified as Inevaluable. Based on RECIST v1.0, CR was defined as a disappearance of all target lesions, PR was defined as at least a 30% decrease in the sum of diameters of target lesions, and SD was defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for progressive disease (PD; at least a 20% increase in the sum of diameters of target lesions.
Duration of Response for Responding Participants Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyFrom the date of first objective response (confirmed and unconfirmed CR or PR) to date of progressive disease, up to 3 years 3 monthsDuration of response was defined for participants with confirmed CR or PR and confirmed and unconfirmed CR or PR as the time from the date of the first documentation of objective response (CR or PR) to the date of the first documentation of progressive disease. Duration of SD was defined for participants whose best response was SD as the time from the randomization date to the date of the first documentation of progressive disease. Duration of response was estimated using Kaplan Meier methods.
Number of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyBaseline up to 30 days after last study dose, up to 3 years 3 monthsA treatment-emergent adverse event (TEAE) was defined as any untoward, unfavorable, unintended medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An adverse event that occurs more than 30 days after the last dose of study medication is not included as a TEAE unless it is considered related to treatment. If relationship is missing, the AE is also considered to be related to the drug.

Countries

Czechia, France, Germany, Italy, Poland, Russia, Spain, Ukraine, United Kingdom

Participant flow

Recruitment details

A total of 84 participants who met all inclusion criteria and no exclusion criteria were enrolled at 46 clinic sites in Europe. Of the 84 participants enrolled, 83 received treatment.

Pre-assignment details

Participants who were randomized to treatment (CS-7017 0.5 mg or placebo) started treatment within 8 weeks of completing first-line therapy.

Participants by arm

ArmCount
CS-7017 0.5 mg
Participants who were randomized to receive two 0.25 mg CS-7017 tablets (i.e. a dose of 0.5 mg) administered by mouth twice daily (PO BID), for a total of four tablets per day.
41
Placebo
Participants who were randomized to receive matching placebo.
43
Total84

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyProgressive disease2737
Overall StudyScreen failure (not dosed)42
Overall StudySerious adverse event or adverse event92
Overall StudyWithdrawal by Subject12

Baseline characteristics

CharacteristicCS-7017 0.5 mgPlaceboTotal
Age, Continuous64.0 years
STANDARD_DEVIATION 7.69
60.9 years
STANDARD_DEVIATION 9.73
62.4 years
STANDARD_DEVIATION 8.88
Age, Customized
<65 years
24 Participants26 Participants50 Participants
Age, Customized
≥65 years
17 Participants17 Participants34 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants2 Participants2 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants0 Participants1 Participants
Race (NIH/OMB)
White
40 Participants41 Participants81 Participants
Sex: Female, Male
Female
19 Participants19 Participants38 Participants
Sex: Female, Male
Male
22 Participants24 Participants46 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
16 / 4123 / 42
other
Total, other adverse events
41 / 4131 / 42
serious
Total, serious adverse events
6 / 415 / 42

Outcome results

Primary

Percentage Rate of Progression-free Survival at 18 Weeks Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line Chemotherapy

Progression-free survival (PFS) was defined as the time from enrollment to the date of the first objective documentation of disease progression or death resulting from any cause, whichever comes first. Progression was defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) as at least a 20% increase in the sum of diameters of target lesions.

Time frame: 18 weeks postdose

Population: PFS was assessed in the Full Analysis Set.

ArmMeasureValue (NUMBER)
CS-7017 0.5 mgPercentage Rate of Progression-free Survival at 18 Weeks Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line Chemotherapy39.86 percentage of participants
PlaceboPercentage Rate of Progression-free Survival at 18 Weeks Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line Chemotherapy25.00 percentage of participants
p-value: <0.00012-sided P value for z test
Secondary

Best Overall Response and Objective Response Rate Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line Chemotherapy

The best overall response was defined as the best response (in the order of confirmed complete response \[CR\], confirmed partial response \[PR\], unconfirmed CR, unconfirmed PR, stable disease \[SD\], and progressive disease \[PD\]) among all overall responses recorded from the start of treatment until the participant withdrew from the study. If there was no tumor assessment after the first dose of study drug, the best overall response was classified as Inevaluable. Based on RECIST v1.0, CR was defined as a disappearance of all target lesions, PR was defined as at least a 30% decrease in the sum of diameters of target lesions, and SD was defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for progressive disease (PD; at least a 20% increase in the sum of diameters of target lesions.

Time frame: From baseline up to disease progression or the development of unacceptable toxicity (whichever occurs first), up to approximately 3 years 3 months

Population: Best overall response and objective response rate were assessed in the Full Analysis Set.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
CS-7017 0.5 mgBest Overall Response and Objective Response Rate Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyObjective response (confirmed CR+PR)6 Participants
CS-7017 0.5 mgBest Overall Response and Objective Response Rate Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyProgressive disease20 Participants
CS-7017 0.5 mgBest Overall Response and Objective Response Rate Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyUnconfirmed CR0 Participants
CS-7017 0.5 mgBest Overall Response and Objective Response Rate Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyConfirmed CR5 Participants
CS-7017 0.5 mgBest Overall Response and Objective Response Rate Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyUnconfirmed PR0 Participants
CS-7017 0.5 mgBest Overall Response and Objective Response Rate Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyConfirmed PR1 Participants
CS-7017 0.5 mgBest Overall Response and Objective Response Rate Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyInevaluable3 Participants
CS-7017 0.5 mgBest Overall Response and Objective Response Rate Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyBest overall response of SD or better16 Participants
CS-7017 0.5 mgBest Overall Response and Objective Response Rate Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyStable disease10 Participants
PlaceboBest Overall Response and Objective Response Rate Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyBest overall response of SD or better12 Participants
PlaceboBest Overall Response and Objective Response Rate Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyStable disease8 Participants
PlaceboBest Overall Response and Objective Response Rate Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyProgressive disease27 Participants
PlaceboBest Overall Response and Objective Response Rate Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyInevaluable3 Participants
PlaceboBest Overall Response and Objective Response Rate Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyConfirmed PR0 Participants
PlaceboBest Overall Response and Objective Response Rate Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyObjective response (confirmed CR+PR)1 Participants
PlaceboBest Overall Response and Objective Response Rate Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyUnconfirmed CR0 Participants
PlaceboBest Overall Response and Objective Response Rate Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyUnconfirmed PR3 Participants
PlaceboBest Overall Response and Objective Response Rate Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyConfirmed CR1 Participants
Secondary

Duration of Response for Responding Participants Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line Chemotherapy

Duration of response was defined for participants with confirmed CR or PR and confirmed and unconfirmed CR or PR as the time from the date of the first documentation of objective response (CR or PR) to the date of the first documentation of progressive disease. Duration of SD was defined for participants whose best response was SD as the time from the randomization date to the date of the first documentation of progressive disease. Duration of response was estimated using Kaplan Meier methods.

Time frame: From the date of first objective response (confirmed and unconfirmed CR or PR) to date of progressive disease, up to 3 years 3 months

Population: Duration of response was assessed in the Full Analysis Set. Number Analyzed for each Row represents only the participants with CR or PR (confirmed and unconfirmed) and SD.

ArmMeasureGroupValue (MEAN)Dispersion
CS-7017 0.5 mgDuration of Response for Responding Participants Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyDuration of response (confirmed and unconfirmed)33.57 weeksStandard Deviation 25.88
CS-7017 0.5 mgDuration of Response for Responding Participants Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyDuration of response (confirmed responses)33.57 weeksStandard Deviation 25.88
CS-7017 0.5 mgDuration of Response for Responding Participants Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyDuration of stable disease26.16 weeksStandard Deviation 10.68
PlaceboDuration of Response for Responding Participants Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyDuration of response (confirmed and unconfirmed)15.96 weeksStandard Deviation 14.86
PlaceboDuration of Response for Responding Participants Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyDuration of stable disease22.52 weeksStandard Deviation 8.01
PlaceboDuration of Response for Responding Participants Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyDuration of response (confirmed responses)37.86 weeks
Secondary

Number of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line Chemotherapy

A treatment-emergent adverse event (TEAE) was defined as any untoward, unfavorable, unintended medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An adverse event that occurs more than 30 days after the last dose of study medication is not included as a TEAE unless it is considered related to treatment. If relationship is missing, the AE is also considered to be related to the drug.

Time frame: Baseline up to 30 days after last study dose, up to 3 years 3 months

Population: Adverse events were assessed in the Safety Analysis Set.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
CS-7017 0.5 mgNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyAny Related TEAE37 Participants
CS-7017 0.5 mgNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyAnaemia6 Participants
CS-7017 0.5 mgNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyOedema3 Participants
CS-7017 0.5 mgNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyAny Gastrointestinal Disorder6 Participants
CS-7017 0.5 mgNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyAny Investigations22 Participants
CS-7017 0.5 mgNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyFatigue6 Participants
CS-7017 0.5 mgNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyLocalised oedema3 Participants
CS-7017 0.5 mgNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyOedema peripheral16 Participants
CS-7017 0.5 mgNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyWeight increased20 Participants
CS-7017 0.5 mgNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyAny Metabolism and Nutrition Disorder6 Participants
CS-7017 0.5 mgNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyFluid retention5 Participants
CS-7017 0.5 mgNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyAny Respiratory, Thoracic, & Mediastinal Disorder8 Participants
CS-7017 0.5 mgNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyDyspnoea4 Participants
CS-7017 0.5 mgNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyPleural effusion3 Participants
CS-7017 0.5 mgNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyAny Skin and Subcutaneous Tissue Disorder5 Participants
CS-7017 0.5 mgNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyAny Blood and Lymphatic System Disorder7 Participants
CS-7017 0.5 mgNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyAny General Disorder& Administration Site Disorder23 Participants
CS-7017 0.5 mgNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyFace oedema4 Participants
PlaceboNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyDyspnoea0 Participants
PlaceboNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyAny Related TEAE16 Participants
PlaceboNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyWeight increased5 Participants
PlaceboNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyAnaemia0 Participants
PlaceboNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyAny Blood and Lymphatic System Disorder0 Participants
PlaceboNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyOedema0 Participants
PlaceboNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyAny Metabolism and Nutrition Disorder3 Participants
PlaceboNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyAny Gastrointestinal Disorder2 Participants
PlaceboNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyPleural effusion0 Participants
PlaceboNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyAny Investigations7 Participants
PlaceboNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyAny Respiratory, Thoracic, & Mediastinal Disorder0 Participants
PlaceboNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyAny Skin and Subcutaneous Tissue Disorder3 Participants
PlaceboNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyFluid retention2 Participants
PlaceboNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyFatigue3 Participants
PlaceboNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyFace oedema1 Participants
PlaceboNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyLocalised oedema0 Participants
PlaceboNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyAny General Disorder& Administration Site Disorder6 Participants
PlaceboNumber of Participants With Treatment-Emergent Adverse Events Related to Study Drug With an Incidence of ≥5% Following Use of CS-7017 Or Placebo in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyOedema peripheral2 Participants
Secondary

Percentage Rate of Overall Survival Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line Chemotherapy

Overall survival (OS) was defined as the time from the date of enrollment to the date of death and assessed by Kaplan Meier analysis.

Time frame: At 3, 6, 9, and 12 months postdose

Population: OS was assessed in the Full Analysis Set.

ArmMeasureGroupValue (NUMBER)
CS-7017 0.5 mgPercentage Rate of Overall Survival Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyOverall survival rate at 3 months100.0 percentage of participants
CS-7017 0.5 mgPercentage Rate of Overall Survival Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyOverall survival rate at 6 months87.2 percentage of participants
CS-7017 0.5 mgPercentage Rate of Overall Survival Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyOverall survival rate at 9 months74.4 percentage of participants
CS-7017 0.5 mgPercentage Rate of Overall Survival Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyOverall survival rate at 12 months68.4 percentage of participants
PlaceboPercentage Rate of Overall Survival Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyOverall survival rate at 12 months55.4 percentage of participants
PlaceboPercentage Rate of Overall Survival Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyOverall survival rate at 3 months92.9 percentage of participants
PlaceboPercentage Rate of Overall Survival Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyOverall survival rate at 9 months75.2 percentage of participants
PlaceboPercentage Rate of Overall Survival Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyOverall survival rate at 6 months85.5 percentage of participants
p-value: 0.1213Log Rank
Secondary

Percentage Rate of Progression-free Survival Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line Chemotherapy

Progression-free survival (PFS) was defined as the time from enrollment to the date of the first objective documentation of disease progression or death resulting from any cause, whichever comes first. Progression was defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) as at least a 20% increase in the sum of diameters of target lesions.

Time frame: At 12, 24, and 30 weeks postdose

Population: PFS was assessed in the Full Analysis Set.

ArmMeasureGroupValue (NUMBER)
CS-7017 0.5 mgPercentage Rate of Progression-free Survival Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyProgression-free survival at 24 weeks29.9 percentage of participants
CS-7017 0.5 mgPercentage Rate of Progression-free Survival Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyProgression-free survival at 12 weeks62.0 percentage of participants
CS-7017 0.5 mgPercentage Rate of Progression-free Survival Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyProgression-free survival at 30 weeks29.9 percentage of participants
PlaceboPercentage Rate of Progression-free Survival Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyProgression-free survival at 24 weeks15.0 percentage of participants
PlaceboPercentage Rate of Progression-free Survival Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyProgression-free survival at 12 weeks47.5 percentage of participants
PlaceboPercentage Rate of Progression-free Survival Following Use of CS-7017 in Colorectal Cancer Participants Who Have Achieved Disease Control Following First-Line ChemotherapyProgression-free survival at 30 weeks12.5 percentage of participants
p-value: 0.038Log Rank
p-value: 0.1773Peto-Peto-Prentice
p-value: 0.2844Wilcoxon (Mann-Whitney)
p-value: 0.114Tarone-Ware

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