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EMD 525797 in Combination With Cetuximab and Irinotecan in K-ras Wild Type Metastatic Colorectal Cancer

An Open-label, Randomized, Controlled, Multicenter, Phase I/II Trial Investigating 2 EMD 525797 Doses in Combination With Cetuximab and Irinotecan Versus Cetuximab and Irinotecan Alone, as Second-line Treatment for Subjects With K-ras Wild Type Metastatic Colorectal Cancer (mCRC)

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01008475
Acronym
POSEIDON
Enrollment
232
Registered
2009-11-05
Start date
2009-10-31
Completion date
2015-04-30
Last updated
2016-03-30

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

Conditions

Metastatic Colorectal Cancer

Keywords

EMD 525797, Cetuximab, Irinotecan, metastatic colorectal cancer

Brief summary

The purpose of this study is to assess the safety and clinical activity of the experimental drug EMD 525797 (study drug), a monoclonal antibody targeting alfa integrins, in combination with irinotecan and cetuximab in K-ras wildtype metastatic colorectal cancer patients.

Interventions

DRUGEMD 525797 250 mg

EMD 525797 will be administered at a target dose of 250 mg as a 1-hour intravenous infusion for every 2 week until radio-graphically documented PD (as assessed by the investigator), unacceptable toxicity or eligibility for curative resection (investigator's assessment), or withdrawal of consent .

DRUGEMD 525797 500 mg

Safety part: EMD 525797 will be administered at a target dose of 500 mg as a 1-hour intravenous infusion for every 2 weeks until radio-graphically documented PD (as assessed by the investigator), unacceptable toxicity or eligibility for curative resection (investigator's assessment), or withdrawal of consent . Randomized part: EMD 525797 will be administered at a target dose of 500 mg as a 1-hour intravenous infusion for every 2 weeks until radio-graphically documented PD (as assessed by the investigator), unacceptable toxicity or eligibility for curative resection (investigator's assessment), or withdrawal of consent.

DRUGEMD 525797 750 mg

EMD 525797 will be administered at a target dose of 750 mg as a 1-hour intravenous infusion for every 2 weeks until radio-graphically documented PD (as assessed by the investigator), unacceptable toxicity or eligibility for curative resection (investigator's assessment), or withdrawal of consent .

DRUGEMD 525797 1000 mg

Safety part: EMD 525797 will be administered at a target dose of 1000 mg as a 1-hour intravenous infusion for every 2 weeks until radio-graphically documented PD (as assessed by the investigator), unacceptable toxicity or eligibility for curative resection (investigator's assessment), or withdrawal of consent . Randomized part: EMD 525797 will be administered at a target dose of 1000 mg as a 1-hour intravenous infusion for every 2 weeks until radio-graphically documented PD (as assessed by the investigator), unacceptable toxicity or eligibility for curative resection (investigator's assessment), or withdrawal of consent.

DRUGCetuximab

Safety part: Cetuximab will be administered at a dose of 400 milligram per square meter (mg/m\^2) on Day 1 Cycle 1 (Week 1) as IV infusion for 2 hours, and then at a dose of 250 mg/m\^2 on Day 8 (Week 2) once weekly until DLT. Randomized part: Cetuximab will be administered at a dose of 400 milligram per square meter (mg/m\^2) on Day 1 Cycle 1 (Week 1) as IV infusion for 2 hours, and then at a dose of 250 mg/m\^2 on Day 8 (Week 2) once weekly until radio-graphically documented PD (as assessed by the investigator), unacceptable toxicity or eligibility for curative resection (investigator's assessment), or withdrawal of consent.

DRUGIrinotecan

Safety part: Irinotecan will be administered at a dose of 180 mg/m\^2 as IV infusion for 30-90 minutes for every 2 weeks until radio-graphically documented PD (as assessed by the investigator), unacceptable toxicity or eligibility for curative resection (investigator's assessment), or withdrawal of consent . Randomized part: Irinotecan will be administered at a dose of 180 mg/m\^2 as IV infusion for 30-90 minutes for every 2 weeks until radio-graphically documented PD (as assessed by the investigator), unacceptable toxicity or eligibility for curative resection (investigator's assessment), or withdrawal of consent.

Sponsors

Merck KGaA, Darmstadt, Germany
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

Subjects with histologically confirmed kras wildtype (WT) colorectal carcinoma (CRC) with documented distant metastasis * Prior oxaliplatin/fluoropyrimidine-containing regimen for the first-line treatment of metastatic disease * Failed an oxaliplatin regimen for metastatic colorectal carcinoma (mCRC). Failure is defined as either progressive disease (PD) (clinical or radiologic) within 6 months of the last dose of any agent of an oxaliplatin-based regimen or intolerance to an oxaliplatin regimen. Intolerance to an oxaliplatin regimen is defined as discontinuation due to any of the following: severe allergic reaction, persistent severe neurotoxicity, or delayed recovery from toxicity preventing retreatment * At least 1 radiographically documented measurable lesion in a previously non irradiated area according to Response Evaluation Criteria In Solid Tumors (RECIST, Version 1.0), i.e., this lesion must be adequately measurable in at least 1 dimension (longest diameter to be recorded) as greater than or equal to (\>=) 2 centimeter (cm) by conventional techniques or \>=1 cm by spiral computed tomography (CT) scan * Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1, or Karnofsky performance status (KPS) \>= 80 percent (%) * Absolute Neutrophil Count (ANC) \>=1.5 x 10\^9/Liter * Platelets \>=100 x 10\^9/Liter * Hemoglobin \>=9 gram per deciliter (g/dL) (without transfusions) * Bilirubin less than or equal to (\<=) 1.5 x upper limit normal (ULN) * Aspartate transaminase (AST) \<=5 x ULN and alanine transaminase (ALT) \<=5 x ULN * Serum creatinine \<=1.25 x ULN and/or creatinine clearance \>=50 milliliter per minute (mL/min) * International Nationalized Ratio (INR), and partial thromboplastin time (PTT) within normal limits * Sodium and potassium within normal limits or \<=10% above or below (supplementation permitted)

Exclusion criteria

* Previous treatment with any inhibitor of Epidermal Growth Factor Receptor (EGFR) * Known brain metastasis and/or leptomeningeal disease * Radiotherapy (except localized radiotherapy for pain relief), major surgery, or any investigational drug in the 30 days before the start of trial treatment entry; planned major surgery during the trial * Concurrent chronic systemic immune or hormone therapy not indicated in this trial protocol (except for physiologic replacement; steroids up to 10 mg of prednisone equivalent or topical and inhaled steroids are allowed) * Clinically relevant coronary artery disease (New York Heart Association \[NYHA\] functional angina classification III/IV), congestive heart failure (NYHA III/IV), clinically relevant cardiomyopathy, history of myocardial infarction in the last 12 months, or high risk of uncontrolled arrhythmia * Uncontrolled hypertension defined as systolic blood pressure \>=160 millimeter of mercury (mmHg) and/or diastolic blood pressure \>=100 mmHg under resting conditions * History of coagulation disorder associated with bleeding or recurrent thrombotic events * History of recent peptic ulcer disease (endoscopically proven gastric, duodenal or esophageal ulcer) within 6 months of trial treatment start * Chronic inflammatory bowel disease, or acute/chronic ileus * Active infection (requiring i.v. antibiotics), including active tuberculosis, active or chronic Hepatitis B or C, or ongoing HIV infection

Design outcomes

Primary

MeasureTime frameDescription
Safety Part: Number of Subjects Experiencing DLTs (Dose Limiting Toxicity)Time from the first dose of study drug up to 2 weeksDLT was defined as any Grade 4 hematologic toxicity or Grade 3/4 non-hematologic toxicity assessed as related to trial treatment by the Investigator and/or Sponsor and confirmed by the safety monitoring committee (SMC) to be relevant to the combination treatment within the first cycle of therapy. Any Grade 3 or 4 non haematological toxicity, any Grade 4 hematological toxicity, treatment related deaths within the first 2 weeks of therapy. Toxicities excluded from DLT: alopecia, rash, nausea, vomiting and hypomagnesemia of Grade 3 or 4 severity, Grade 4 neutropenia or leukopenia lasting for =\< 5 days and not associated with fever; Single laboratory values out of normal range without any clinical correlation and resolve within 7 days; Grade 3 or 4 diarrhoea without adequate supportive care. Adequate supportive care has been administered and Grade 4 diarrhea persists (investigator decision); isolated Grade 4 lymphocytopenia and thrombocytopenia without clinical correlation.
Randomized Part: Progression Free Survival (PFS)Time from randomization until progressive disease or death; assessed up to 18 months (i.e data cut-off date: 09 Oct 2013)PFS was defined as the time from the randomization date to first documented sign of objective radio-graphic disease progression (PD) as per Response Evaluation Criteria In Solid Tumors version 1. (RECIST 1.0) or death from any cause if reported within 12 weeks from the last tumor assessment. PD per RECIST v 1.0 was defined as at least 20% increase in the sum of the longest diameter of target lesions, taking as the reference the smallest sum of longest diameters recorded since treatment started, or unequivocal progression of existing non-target lesion or appearance of new lesions. Subjects who did not progress or died at the time of analyses, or subjects who died without previously radio-graphically documented PD and death was observed after more than 12 weeks of last tumor assessment without progression, these subjects were censored at their last tumor assessment date or date of randomization, whichever occurred last.

Secondary

MeasureTime frameDescription
Overall Survival (OS) TimeTime from randomization until death assessed up to 18 months (i.e data cut-off date: 09 Oct 2013)OS was defined as the time from the date of randomization to the date of death from any cause. For subjects who were still alive at the analysis cut off date or lost to follow up, survival was censored at the last recorded date the subject was known to be alive or at the analysis cut off date, whichever occurred first.
Time to Progression (TTP)Time from randomization until disease progression assessed up to 18 months (i.e data cut-off date: 09 Oct 2013)TTP was defined as the time from the date of randomization to the date of objective radiographic disease progression (PD). PD per RECIST v 1.0 was defined as at least 20% increase in the sum of the longest diameter of target lesions, taking as the reference the smallest sum of longest diameters recorded since treatment started, or unequivocal progression of existing non-target lesion or appearance of new lesions. For subjects who did not progress or who were without any post baseline tumor assessment, TTP was censored at their last tumor assessment date, or at the randomization date, whichever occurred last.
Number of Subjects With Tumor ResponseTime from randomization up to 18 months (i.e data cut-off date: 09 Oct 2013)Tumor response was defined as the presence of at least 1 confirmed complete response (CR) or confirmed partial response (PR) as judged by RECIST version 1.0. CR was defined for target lesions (TLs) as the disappearance of all lesions, and for non-target lesions (NTLs) as the disappearance of all non-target non-measurable lesions and/or normalization of serum levels of tumor markers. PR was defined for TLs as at least a 30 percent (%) decrease from baseline (BL) in the sum of longest diameter (SLD) of TLs.
Time to Treatment Failure (TTF)Time from randomization until discontinuation assessed up to 18 months (i.e data cut-off date: 09 Oct 2013)TTF was defined as the time from randomization to treatment discontinuation for any reason. For subjects on drug at the analysis cut off date or lost to follow up, TTF was censored at the trial discontinuation date or at the analysis cut off date, whichever occurred first.

Countries

Belgium, Bulgaria, Cyprus, Czechia, Germany, Greece, Hungary, Israel, Poland, Russia, Spain, United Kingdom

Participant flow

Pre-assignment details

This study consists of two parts, safety part and randomized part. A total of 16 subjects were included in the safety part and 216 subjects were included in the randomized part of the study. The subjects who participated in the safety part of the study were not included in the randomized part of the study.

Participants by arm

ArmCount
Safety Part: EMD 525797 250 mg + Standard of Care (SoC)
Cetuximab was administered at a dose of 400 milligram per square meter (mg/m\^2) on Day 1 as IV infusion for 2 hours, and then at a dose of 250 mg/m\^2 on Day 8 once weekly followed by EMD 525797 at a target dose of 250 mg as a 1-hour IV infusion for every 2 weeks, followed by irinotecan at a dose of 180 mg/m\^2 as IV infusion for 30-90 minutes for every 2 weeks until radio-graphically documented progressive disease (PD) (as assessed by the investigator), unacceptable toxicity or eligibility for curative resection (investigator's assessment), or withdrawal of consent.
3
Safety Part: EMD 525797 500 mg + SoC
Cetuximab was administered at a dose of 400 milligram per square meter (mg/m\^2) on Day 1 as IV infusion for 2 hours, and then at a dose of 250 mg/m\^2 on Day 8 once weekly followed by EMD 525797 at a target dose of 500 mg as a 1-hour IV infusion for every 2 weeks, followed by irinotecan at a dose of 180 mg/m\^2 as IV infusion for 30-90 minutes for every 2 weeks until radio-graphically documented progressive disease (PD) (as assessed by the investigator), unacceptable toxicity or eligibility for curative resection (investigator's assessment), or withdrawal of consent.
3
Safety Part: EMD 525797 750 mg + SoC
Cetuximab was administered at a dose of 400 milligram per square meter (mg/m\^2) on Day 1 as IV infusion for 2 hours, and then at a dose of 250 mg/m\^2 on Day 8 once weekly followed by EMD 525797 at a target dose of 750 mg as a 1-hour IV infusion for every 2 weeks, followed by irinotecan at a dose of 180 mg/m\^2 as IV infusion for 30-90 minutes for every 2 weeks until radio-graphically documented progressive disease (PD) (as assessed by the investigator), unacceptable toxicity or eligibility for curative resection (investigator's assessment), or withdrawal of consent.
7
Safety Part: EMD 525797 1000 mg + SoC
Cetuximab was administered at a dose of 400 milligram per square meter (mg/m\^2) on Day 1 as IV infusion for 2 hours, and then at a dose of 250 mg/m\^2 on Day 8 once weekly followed by EMD 525797 at a target dose of 1000 mg as a 1-hour IV infusion for every 2 weeks, followed by irinotecan at a dose of 180 mg/m\^2 as IV infusion for 30-90 minutes for every 2 weeks until radio-graphically documented progressive disease (PD) (as assessed by the investigator), unacceptable toxicity or eligibility for curative resection (investigator's assessment), or withdrawal of consent.
3
Randomized Part: SoC
Cetuximab was administered at a dose of 400 milligram per square meter (mg/m\^2) on Day 1 Cycle 1 (Week 1) as intravenous (IV) infusion for 2 hours, and then at a dose of 250 mg/m\^2 on Day 8 (Week 2) once weekly followed by irinotecan at a dose of 180 mg/m\^2 as IV infusion for 30-90 minutes for every 2 weeks until radio-graphically documented progressive disease (PD) (as assessed by the investigator), unacceptable toxicity or eligibility for curative resection (investigator's assessment), or withdrawal of consent.
72
Randomized Part: EMD 525797 500 mg + SoC
Cetuximab was administered at a dose of 400 mg/m\^2 on Day 1 Cycle 1 (Week 1) as IV infusion for 2 hours, and then at a dose of 250 mg/m\^2 on Day 8 (Week 2) once weekly; followed by EMD 525797 at a target dose of 500 mg as a 1-hour IV infusion for every 2 weeks, followed by Irinotecan at a dose of 180 mg/m\^2 as IV infusion for 30-90 minutes for every 2 weeks until radio-graphically documented progressive disease (PD) (as assessed by the investigator), unacceptable toxicity or eligibility for curative resection (investigator's assessment), or withdrawal of consent.
73
Randomized Part: EMD 525797 1000 mg + SoC
Cetuximab was administered at a dose of 400 mg/m\^2 on Day 1 Cycle 1 (Week 1) as IV infusion for 2 hours, and then at a dose of 250 mg/m\^2 on Day 8 (Week 2) once weekly; followed by EMD 525797 at a target dose of 1000 mg as a 1-hour IV infusion for every 2 weeks, followed by Irinotecan at a dose of 180 mg/m\^2 as IV infusion for 30-90 minutes for every 2 weeks until radio-graphically documented progressive disease (PD) (as assessed by the investigator), unacceptable toxicity or eligibility for curative resection (investigator's assessment), or withdrawal of consent.
71
Total232

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006
Overall StudyOngoing treatment at data cut-off date0000564

Baseline characteristics

CharacteristicSafety Part: EMD 525797 250 mg + Standard of Care (SoC)Safety Part: EMD 525797 500 mg + SoCSafety Part: EMD 525797 750 mg + SoCSafety Part: EMD 525797 1000 mg + SoCRandomized Part: SoCRandomized Part: EMD 525797 500 mg + SoCRandomized Part: EMD 525797 1000 mg + SoCTotal
Age, Continuous62.3 Years
STANDARD_DEVIATION 11.5
57.7 Years
STANDARD_DEVIATION 11.2
60.4 Years
STANDARD_DEVIATION 6.2
63.0 Years
STANDARD_DEVIATION 7.2
56.2 Years
STANDARD_DEVIATION 12.11
58.9 Years
STANDARD_DEVIATION 12.18
59.9 Years
STANDARD_DEVIATION 10.63
58.5 Years
STANDARD_DEVIATION 11.49
Sex: Female, Male
Female
2 Participants1 Participants4 Participants2 Participants27 Participants36 Participants23 Participants95 Participants
Sex: Female, Male
Male
1 Participants2 Participants3 Participants1 Participants45 Participants37 Participants48 Participants137 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
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —— / —— / —
other
Total, other adverse events
3 / 33 / 37 / 73 / 372 / 7372 / 7268 / 69
serious
Total, serious adverse events
2 / 32 / 33 / 73 / 330 / 7327 / 7234 / 69

Outcome results

Primary

Randomized Part: Progression Free Survival (PFS)

PFS was defined as the time from the randomization date to first documented sign of objective radio-graphic disease progression (PD) as per Response Evaluation Criteria In Solid Tumors version 1. (RECIST 1.0) or death from any cause if reported within 12 weeks from the last tumor assessment. PD per RECIST v 1.0 was defined as at least 20% increase in the sum of the longest diameter of target lesions, taking as the reference the smallest sum of longest diameters recorded since treatment started, or unequivocal progression of existing non-target lesion or appearance of new lesions. Subjects who did not progress or died at the time of analyses, or subjects who died without previously radio-graphically documented PD and death was observed after more than 12 weeks of last tumor assessment without progression, these subjects were censored at their last tumor assessment date or date of randomization, whichever occurred last.

Time frame: Time from randomization until progressive disease or death; assessed up to 18 months (i.e data cut-off date: 09 Oct 2013)

Population: Intention-to-treat (ITT) analysis set included all the subjects who were randomized into the treatment groups.

ArmMeasureValue (MEDIAN)
Safety Part: EMD 525797 250 mg + SoCRandomized Part: Progression Free Survival (PFS)5.6 months
Safety Part: EMD 525797 500 mg + SoCRandomized Part: Progression Free Survival (PFS)5.4 months
Safety Part: EMD525797 750 mg + SoCRandomized Part: Progression Free Survival (PFS)5.6 months
95% CI: [0.78, 1.64]
95% CI: [0.77, 1.61]
Primary

Safety Part: Number of Subjects Experiencing DLTs (Dose Limiting Toxicity)

DLT was defined as any Grade 4 hematologic toxicity or Grade 3/4 non-hematologic toxicity assessed as related to trial treatment by the Investigator and/or Sponsor and confirmed by the safety monitoring committee (SMC) to be relevant to the combination treatment within the first cycle of therapy. Any Grade 3 or 4 non haematological toxicity, any Grade 4 hematological toxicity, treatment related deaths within the first 2 weeks of therapy. Toxicities excluded from DLT: alopecia, rash, nausea, vomiting and hypomagnesemia of Grade 3 or 4 severity, Grade 4 neutropenia or leukopenia lasting for =\< 5 days and not associated with fever; Single laboratory values out of normal range without any clinical correlation and resolve within 7 days; Grade 3 or 4 diarrhoea without adequate supportive care. Adequate supportive care has been administered and Grade 4 diarrhea persists (investigator decision); isolated Grade 4 lymphocytopenia and thrombocytopenia without clinical correlation.

Time frame: Time from the first dose of study drug up to 2 weeks

Population: Dose-escalation analysis set included subjects who received atleast 1 dose of EMD 525797 and who met atleast 1 of the following: Did not withdraw before the end of DLT evaluation period (2 weeks from 1st drug intake) for reasons other than DLT;those who experienced a DLT during this period and received 1 dose of EMD 525797 as per cohort allocation.

ArmMeasureValue (NUMBER)
Safety Part: EMD 525797 250 mg + SoCSafety Part: Number of Subjects Experiencing DLTs (Dose Limiting Toxicity)0 subjects
Safety Part: EMD 525797 500 mg + SoCSafety Part: Number of Subjects Experiencing DLTs (Dose Limiting Toxicity)0 subjects
Safety Part: EMD525797 750 mg + SoCSafety Part: Number of Subjects Experiencing DLTs (Dose Limiting Toxicity)0 subjects
Safety Part: EMD 525797 1000 mg +SoCSafety Part: Number of Subjects Experiencing DLTs (Dose Limiting Toxicity)0 subjects
Secondary

Number of Subjects With Tumor Response

Tumor response was defined as the presence of at least 1 confirmed complete response (CR) or confirmed partial response (PR) as judged by RECIST version 1.0. CR was defined for target lesions (TLs) as the disappearance of all lesions, and for non-target lesions (NTLs) as the disappearance of all non-target non-measurable lesions and/or normalization of serum levels of tumor markers. PR was defined for TLs as at least a 30 percent (%) decrease from baseline (BL) in the sum of longest diameter (SLD) of TLs.

Time frame: Time from randomization up to 18 months (i.e data cut-off date: 09 Oct 2013)

Population: ITT analysis set included all the subjects who were randomized into the trial.

ArmMeasureGroupValue (NUMBER)
Safety Part: EMD 525797 250 mg + SoCNumber of Subjects With Tumor ResponseCR2 Subjects
Safety Part: EMD 525797 250 mg + SoCNumber of Subjects With Tumor ResponsePR17 Subjects
Safety Part: EMD 525797 500 mg + SoCNumber of Subjects With Tumor ResponsePR19 Subjects
Safety Part: EMD 525797 500 mg + SoCNumber of Subjects With Tumor ResponseCR1 Subjects
Safety Part: EMD525797 750 mg + SoCNumber of Subjects With Tumor ResponseCR0 Subjects
Safety Part: EMD525797 750 mg + SoCNumber of Subjects With Tumor ResponsePR18 Subjects
Secondary

Overall Survival (OS) Time

OS was defined as the time from the date of randomization to the date of death from any cause. For subjects who were still alive at the analysis cut off date or lost to follow up, survival was censored at the last recorded date the subject was known to be alive or at the analysis cut off date, whichever occurred first.

Time frame: Time from randomization until death assessed up to 18 months (i.e data cut-off date: 09 Oct 2013)

Population: ITT analysis set included all the subjects who were randomized into the trial.

ArmMeasureValue (MEDIAN)
Safety Part: EMD 525797 250 mg + SoCOverall Survival (OS) Time11.6 months
Safety Part: EMD 525797 500 mg + SoCOverall Survival (OS) Time15.0 months
Safety Part: EMD525797 750 mg + SoCOverall Survival (OS) Time14.4 months
95% CI: [0.54, 1.28]
95% CI: [0.52, 1.25]
Secondary

Time to Progression (TTP)

TTP was defined as the time from the date of randomization to the date of objective radiographic disease progression (PD). PD per RECIST v 1.0 was defined as at least 20% increase in the sum of the longest diameter of target lesions, taking as the reference the smallest sum of longest diameters recorded since treatment started, or unequivocal progression of existing non-target lesion or appearance of new lesions. For subjects who did not progress or who were without any post baseline tumor assessment, TTP was censored at their last tumor assessment date, or at the randomization date, whichever occurred last.

Time frame: Time from randomization until disease progression assessed up to 18 months (i.e data cut-off date: 09 Oct 2013)

Population: ITT analysis set included all the subjects who were randomized into the trial.

ArmMeasureValue (MEDIAN)
Safety Part: EMD 525797 250 mg + SoCTime to Progression (TTP)5.8 months
Safety Part: EMD 525797 500 mg + SoCTime to Progression (TTP)5.6 months
Safety Part: EMD525797 750 mg + SoCTime to Progression (TTP)6.5 months
95% CI: [0.75, 1.65]
95% CI: [0.75, 1.65]
Secondary

Time to Treatment Failure (TTF)

TTF was defined as the time from randomization to treatment discontinuation for any reason. For subjects on drug at the analysis cut off date or lost to follow up, TTF was censored at the trial discontinuation date or at the analysis cut off date, whichever occurred first.

Time frame: Time from randomization until discontinuation assessed up to 18 months (i.e data cut-off date: 09 Oct 2013)

Population: ITT analysis set included all the subjects who were randomized into the trial.

ArmMeasureValue (MEDIAN)
Safety Part: EMD 525797 250 mg + SoCTime to Treatment Failure (TTF)5.2 months
Safety Part: EMD 525797 500 mg + SoCTime to Treatment Failure (TTF)4.3 months
Safety Part: EMD525797 750 mg + SoCTime to Treatment Failure (TTF)4.8 months
95% CI: [0.67, 1.34]
95% CI: [0.74, 1.48]

Source: ClinicalTrials.gov · Data processed: Mar 19, 2026