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Selinexor in Advanced Liposarcoma

A Phase 2-3, Multicenter, Randomized, Double-blind Study of Selinexor (KPT-330) Versus Placebo in Patients With Advanced Unresectable Dedifferentiated Liposarcoma (DDLS)

Status
Completed
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02606461
Acronym
SEAL
Enrollment
342
Registered
2015-11-17
Start date
2016-01-04
Completion date
2021-10-26
Last updated
2023-01-23

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

Conditions

Dedifferentiated Liposarcoma

Keywords

Advanced unresectable dedifferentiated liposarcoma, selinexor, KCP-330, Karyopharm, Phase 2 / 3, dedifferentiated liposarcoma, Liposarcoma

Brief summary

This is a randomized, multicenter, double-blind, placebo-controlled, Phase 2-3 study of patients diagnosed with advanced unresectable dedifferentiated liposarcoma. Approximately 342 total patients will be randomized to study treatment (selinexor or placebo).

Detailed description

In the Phase 2 portion of the study, 57 patients were randomized to selinexor (60 mg) or placebo at a 1:1 allocation ratio. In the Phase 3 portion of the study, approximately 285 patients will be randomized to selinexor (60 mg) or placebo with a 2:1 allocation ratio. Patients who progress during the blinded portion of the study will be unblinded and if receiving: * placebo, may cross over to open-label selinexor (60mg twice-weekly) * selinexor, will be withdrawn from further treatment and followed for survival Study treatment will be given twice-weekly on Day 1 and Day 3 during Weeks 1-6 of each six-week (42 day) cycle until disease progression or intolerability. Treatment will continue until one or more of the following occurs: * Disease progression, as defined by RECIST v1.1 Response Criteria * Clinical progression, as determined by the treating physician * Unacceptable adverse events (AEs) or failure to tolerate study treatment * Patient withdrawal * Patient discontinuation due to non-compliance

Interventions

DRUGSelinexor

Selinexor 60mg

DRUGPlacebo

Sponsors

Karyopharm Therapeutics Inc
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

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

Inclusion criteria

1. Patients ≥12 years of age 2. Body surface area (BSA) ≥ 1.2 m2 3. Histologic evidence of DDLS at any time prior to randomization AND current evidence of DDLS requiring treatment 4. Must have measurable disease per RECIST v1.1 Response Criteria 5. Radiologic evidence of disease progression within 6 months prior to randomization. If the patient received other intervening therapy after documented disease progression, further disease progression must be documented after the completion of the intervening therapy 6. Must have had at least 2 prior lines of systemic therapy for liposarcoma (not to exceed 5 prior lines) 7. If patient received any previous systemic therapy, the last dose must have been ≥ 21 days prior to randomization (or ≥ 5 half-lives of that drug, whichever is shorter) with all clinically significant therapy-related toxicities having resolved to ≤ Grade 1

Exclusion criteria

1. Patients with pure well-differentiated liposarcoma (WDLS), myxoid/round cell or pleomorphic tumor histologic subtypes 2. Known active hepatitis B (HepB), hepatitis C (HepC) or human immunodeficiency virus (HIV) infection 3. Known central nervous system metastases

Design outcomes

Primary

MeasureTime frameDescription
Phase 3 Double Blind: Progression-free Survival (PFS) as Per Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1From the date of randomization until the first date of disease progression, or death due to any cause whichever occurred first (up to 57 months)PFS was defined as the time from the date of randomization until the first date of Independent Review Committee (IRC)-confirmed PD per RECIST version 1.1, or death due to any cause. PD was defined as at least a 20% increase in the sum of the longest diameter (SLD), taking as reference the smallest sum of the longest diameter (SLD) recorded from baseline or the appearance of 1 or more new lesions.
Phase 3 Open Label: Progression-free Survival (PFS) as Per RECIST Version 1.1From the date of randomization in the Phase 3 open label period until the first date of disease progression, or death due to any cause whichever occurred first (up to 57 months)PFS was defined as the time from the date of randomization in the Phase 3 open-label period until the first date of IRC-confirmed PD per RECIST version 1.1, or death due to any cause. PD was defined as at least a 20% increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.
Phase 2 Double Blind: Progression-free Survival (PFS) as Per RECIST Version 1.1From date of randomization until the first date of PD or death due to any cause, whichever occurred first (up to 57 months)PFS was defined as the time from date of randomization until the first date of IRC-confirmed PD per RECIST version 1.1, or death due to any cause. PD was defined as at least a 20% increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.
Phase 2 Open Label: Progression-free Survival (PFS) as Per RECIST Version 1.1From date of randomization in the Phase 2 open label period until the first date of PD or death due to any cause, whichever occurred first (up to 57 months)PFS was defined as the time from date of randomization in the Phase 2 open-label period until the first date of IRC-confirmed PD per RECIST version 1.1, or death due to any cause. PD was defined as at least a 20% increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.

Secondary

MeasureTime frameDescription
Phase 3 Double Blind: Time-to-Progression (TTP) as Per RECIST Version 1.1From date of randomization until the first date of PD or death due to any cause, whichever occurred first (up to 70 months)TTP was defined as the time from date of randomization until ICR-determined PD per RECIST version 1.1, or death due to disease progression, whichever occurred first. PD was defined as at least a 20% increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.
Phase 3 Open Label: Time-to-Progression (TTP) as Per RECIST Version 1.1From date of randomization in the Phase 3 open label period until the first date of PD or death due to any cause, whichever occurred first (up to 70 months)TTP was defined as the time from date of randomization in the Phase 3 open-label period until ICR-determined PD per RECIST version 1.1, or death due to disease progression, whichever occurred first. PD was defined as at least a 20% increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.
Phase 2 Double Blind: Time-to-Progression (TTP) as Per RECIST Version 1.1From date of randomization until the first date of PD or death due to any cause, whichever occurred first (up to 70 months)TTP was defined as the time from date of randomization until ICR-determined PD as per RECIST version 1.1, or death due to disease progression, whichever occurred first. PD was defined as at least a 20% increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.
Phase 2 Open Label: Time-to-Progression (TTP) as Per RECIST Version 1.1From date of randomization in the Phase 2 open-label period until the first date of PD or death due to any cause, whichever occurred first (up to 70 months)TTP was defined as the time from date of randomization in the Phase 2 open-label period until ICR-determined PD per RECIST version 1.1, or death due to disease progression, whichever occurred first. PD was defined as at least a 20% increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.
Phase 3 Double Blind: Overall Response Rate (ORR)From date of randomization until the documentation of CR or PR (up to 70 months)ORR was defined as the percentage of participants who achieved complete response (CR) or partial response (PR), per RECIST v.1.1. CR was defined as disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) had reduction in short axis to \<10 mm. PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.
Phase 3 Open Label: Overall Response Rate (ORR)From date of randomization in the Phase 3 open label period until the documentation of CR or PR (up to 70 months)ORR was defined as the percentage of participants who achieved CR or PR, per RECIST v.1.1. CR was defined as disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) had reduction in short axis to \<10 mm. PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.
Phase 2 Double Blind: Overall Response Rate (ORR)From date of randomization until the documentation of CR or PR (up to 70 months)ORR was defined as the percentage of participants who achieved CR or PR, per RECIST v.1.1. CR was defined as disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) had reduction in short axis to \<10 mm. PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.
Phase 2 Open Label: Overall Response Rate (ORR)From date of randomization in the Phase 2 open-label period until the documentation of CR or PR (up to 70 months)ORR was defined as the percentage of participants who achieved CR or PR, per RECIST v.1.1. CR was defined as disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) had reduction in short axis to \<10 mm. PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.
Phase 3 Double Blind: Duration of Response (DOR)From first occurrence of CR or PR until the first date of PD (up to 70 months)DOR was defined as the time from first occurrence of CR or PR until the first date of PD per RECIST version 1.1 or death. CR was defined as disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) had reduction in short axis to \<10 mm. PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. PD was defined as at least a 20% increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.
Phase 3 Double Blind: Overall Survival (OS)From date of randomization until death due to any cause, whichever occurred first (up to 70 months)OS was defined as the duration (in months) from the date of randomization to death from any cause. Participants last known to be alive were censored at the date of discontinuation from the study, or database cut date, whichever was earlier.
Phase 3 Double Blind: Time to Next Treatment (TTNT)Time from randomization to the first new antineoplastic therapy or death due to any cause (up to 70 months)TTNT was defined as time since randomization until the first new antineoplastic therapy or death due to any cause, whichever occurs first.
Phase 2 Double Blind: Time to Next Treatment (TTNT)Time from randomization to the first new antineoplastic therapy or death due to any cause (up to 70 months)TTNT was defined as time since randomization until the first new antineoplastic therapy or death due to any cause, whichever occurs first.
Phase 3 Double Blind: Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious TEAEsFrom start of study drug administration up to 70 monthsAn adverse event was defined as any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of study treatment, whether or not considered related to the study treatment. A serious adverse event (SAE) was an AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial or prolonged inpatient hospitalization; congenital anomaly/birth defect or was otherwise considered medically important. A TEAE was defined as those AEs that develop or worsen after the first dose of study drug. TEAEs included both serious and non-serious TEAEs.
Phase 3 Open Label: Number of Participants With TEAEs and Serious TEAEsFrom start of study drug administration up to 70 monthsAn adverse event was defined as any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of study treatment, whether or not considered related to the study treatment. An SAE was an AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial or prolonged inpatient hospitalization; congenital anomaly/birth defect or was otherwise considered medically important. TEAEs were defined as those AEs that develop or worsen after the first dose of study drug. TEAEs included both serious and non-serious TEAEs.
Phase 2 Double Blind: Number of Participants With TEAEs and Serious TEAEsFrom start of study drug administration up to 70 monthsAn adverse event was defined as any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of study treatment, whether or not considered related to the study treatment. A serious adverse event (SAE) was an AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial or prolonged inpatient hospitalization; congenital anomaly/birth defect or was otherwise considered medically important. TEAEs were defined as those AEs that develop or worsen after the first dose of study drug. TEAEs included both serious and non-serious TEAEs.
Phase 2 Open Label: Number of Participants With TEAEs and Serious TEAEsFrom start of study drug administration up to 70 monthsAn adverse event was defined as any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of study treatment, whether or not considered related to the study treatment. An SAE was an AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial or prolonged inpatient hospitalization; congenital anomaly/birth defect or was otherwise considered medically important. TEAEs were defined as those AEs that develop or worsen after the first dose of study drug. TEAEs included both serious and non-serious TEAEs.
Phase 3 Double Blind: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Baseline up to Day 1387The QLQ-C30 is a 30-item questionnaire developed to assess the quality of life of patients with cancer. QLQ-C30 contains 30 questions that include five functional scales (physical, role, emotional, social, and cognitive functioning); three symptom scales (fatigue, nausea/vomiting and pain); six single-item symptom items (dyspnea, insomnia, appetite loss, constipation, diarrhea, and financial difficulties); and global health status/quality of life (QoL). Most questions used a 4-point scale (from 1 'Not at all' to 4 'Very much'); 2 questions used a 7-point scale (from 1 'very poor' to 7 'Excellent'). Scores were averaged and transformed to a 0-100 scale. For the functional scales and the global health status/QoL, a higher score represents a better level of functioning (better health status); for the symptom scales/items, a higher score represents a higher level of symptomatology/problems (worse health status).
Phase 3 Open Label: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Baseline up to Day 379The QLQ-C30 is a 30-item questionnaire developed to assess the quality of life of patients with cancer. QLQ-C30 contains 30 questions that include five functional scales (physical, role, emotional, social, and cognitive functioning); three symptom scales (fatigue, nausea/vomiting and pain); six single-item symptom items (dyspnea, insomnia, appetite loss, constipation, diarrhea, and financial difficulties); and global health status/quality of life (QoL). Most questions used a 4-point scale (from 1 'Not at all' to 4 'Very much'); 2 questions used a 7-point scale (from 1 'very poor' to 7 'Excellent'). Scores were averaged and transformed to a 0-100 scale. For the functional scales and the global health status/QoL, a higher score represents a better level of functioning (better health status); for the symptom scales/items, a higher score represents a higher level of symptomatology/problems (worse health status).
Phase 3 Double Blind: Progression-free Survival (PFS) as Per Investigator AssessmentFrom the date of randomization until the first date of disease progression, or death due to any cause whichever occurred first (up to 70 months)PFS was defined as the time from date of randomization until the first date of PD, per RECIST version 1.1, or death due to any cause as defined by the Investigator based on clinical and/or radiologic criteria. PD was defined as at least a 20% increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.
Phase 3 Open Label: Overall Survival (OS)From date of randomization in phase 3 open label period until death due to any cause, whichever occurred first (up to 70 months)OS was defined as the duration (in months) from the date of randomization in the Phase 3 open-label period to death from any cause. Participants last known to be alive were censored at the date of discontinuation from the study, or database cut date, whichever was earlier.
Phase 2 Double Blind: Overall Survival (OS)From the date of randomization until death due to any cause, whichever occurred first (up to 70 months)OS was defined as the duration (in months) from the date of randomization to death from any cause. Participants last known to be alive were censored at the date of discontinuation from the study, or database cut date, whichever was earlier.
Phase 2 Open Label: Overall Survival (OS)From date of randomization in the Phase 2 open-label period until death due to any cause, whichever occurred first (up to 70 months)OS was defined as the duration (in months) from the date of randomization in the Phase 2 open-label period to death from any cause. Participants last known to be alive were censored at the date of discontinuation from the study, or database cut date, whichever was earlier.

Countries

Belgium, Canada, France, Germany, Israel, Italy, Spain, Sweden, United Kingdom, United States

Participant flow

Recruitment details

The study was conducted at 71 sites in the United States, Canada, Germany, Belgium, Israel, United Kingdom, France, Spain, Italy, and Sweden. A total of 342 participants were enrolled, out of which 57 participants were randomized to receive study treatment in Phase 2 and 285 participants randomized, of which 284 participants received study treatment in Phase 3.

Pre-assignment details

This study consisted of 2 phases (2 and 3), where participants were randomized to selinexor or placebo in double-blind treatment. Participants in the placebo group who had progressive disease (PD) during the phase 2 and 3 double-blinded treatment could crossover to open-label selinexor treatment.

Participants by arm

ArmCount
Phase 2 Double-blinded: Selinexor
Participants received a fixed blinding dose of 60 mg selinexor twice-weekly on Day 1 and 3 during each 6-week (42-day) cycle.
27
Phase 2 Double-blinded: Placebo
Participants received a fixed blinding dose of placebo matched to Selinexor twice-weekly on Day 1 and 3 during each 6-week (42-day) cycle.
30
Phase 3 Double-blinded: Selinexor
Participants received a fixed blinding dose of 60 mg selinexor twice-weekly on Day 1 and 3 during each 6-week (42-day) cycle.
188
Phase 3 Double-blinded: Placebo
Participants received a fixed blinding dose of placebo matched to selinexor twice-weekly on Day 1 and 3 during each 6-week (42-day) cycle.
97
Total342

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005
Period 1: Double-blinded PeriodRandomized but no treatment001000

Baseline characteristics

CharacteristicPhase 2 Double-blinded: SelinexorPhase 2 Double-blinded: PlaceboPhase 3 Double-blinded: SelinexorPhase 3 Double-blinded: PlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
8 Participants13 Participants96 Participants51 Participants168 Participants
Age, Categorical
Between 18 and 65 years
19 Participants17 Participants92 Participants46 Participants174 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants3 Participants7 Participants6 Participants18 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
25 Participants25 Participants149 Participants79 Participants278 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants2 Participants32 Participants12 Participants46 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
2 Participants5 Participants9 Participants3 Participants19 Participants
Race (NIH/OMB)
Black or African American
1 Participants2 Participants3 Participants1 Participants7 Participants
Race (NIH/OMB)
More than one race
0 Participants3 Participants34 Participants13 Participants50 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants0 Participants2 Participants0 Participants3 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants1 Participants0 Participants1 Participants
Race (NIH/OMB)
White
23 Participants20 Participants139 Participants80 Participants262 Participants
Sex: Female, Male
Female
12 Participants11 Participants74 Participants33 Participants130 Participants
Sex: Female, Male
Male
15 Participants19 Participants114 Participants64 Participants212 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
deaths
Total, all-cause mortality
18 / 2725 / 30127 / 18767 / 9720 / 2443 / 63
other
Total, other adverse events
27 / 2729 / 30186 / 18794 / 9724 / 2462 / 63
serious
Total, serious adverse events
4 / 276 / 3073 / 18718 / 9713 / 2425 / 63

Outcome results

Primary

Phase 2 Double Blind: Progression-free Survival (PFS) as Per RECIST Version 1.1

PFS was defined as the time from date of randomization until the first date of IRC-confirmed PD per RECIST version 1.1, or death due to any cause. PD was defined as at least a 20% increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.

Time frame: From date of randomization until the first date of PD or death due to any cause, whichever occurred first (up to 57 months)

Population: The Phase 2 Intent-to-Treat Population (Ph2-ITT) consisted of all participants randomized to study treatment in Phase 2, regardless of whether or not they received study treatment.

ArmMeasureValue (MEDIAN)
Phase 3 Double-blinded: SelinexorPhase 2 Double Blind: Progression-free Survival (PFS) as Per RECIST Version 1.13.02 Months
Phase 3 Double-blinded: PlaceboPhase 2 Double Blind: Progression-free Survival (PFS) as Per RECIST Version 1.12.76 Months
p-value: 0.605195% CI: [0.5357, 2.4778]Log Rank
Primary

Phase 2 Open Label: Progression-free Survival (PFS) as Per RECIST Version 1.1

PFS was defined as the time from date of randomization in the Phase 2 open-label period until the first date of IRC-confirmed PD per RECIST version 1.1, or death due to any cause. PD was defined as at least a 20% increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.

Time frame: From date of randomization in the Phase 2 open label period until the first date of PD or death due to any cause, whichever occurred first (up to 57 months)

Population: The Phase 2 Open-Label Population (Ph2-OL) consisted of all participants in Phase 2 who were randomized to placebo in the blinded phase, entered open-label period, and received at least one dose of open-label selinexor.

ArmMeasureValue (MEDIAN)
Phase 3 Double-blinded: SelinexorPhase 2 Open Label: Progression-free Survival (PFS) as Per RECIST Version 1.11.38 Months
Primary

Phase 3 Double Blind: Progression-free Survival (PFS) as Per Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1

PFS was defined as the time from the date of randomization until the first date of Independent Review Committee (IRC)-confirmed PD per RECIST version 1.1, or death due to any cause. PD was defined as at least a 20% increase in the sum of the longest diameter (SLD), taking as reference the smallest sum of the longest diameter (SLD) recorded from baseline or the appearance of 1 or more new lesions.

Time frame: From the date of randomization until the first date of disease progression, or death due to any cause whichever occurred first (up to 57 months)

Population: Phase 3 Intent-to-Treat Population (Ph3-ITT) consisted of all participants randomized to study treatment in Phase 3, regardless of whether or not they received study treatment.

ArmMeasureValue (MEDIAN)
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Progression-free Survival (PFS) as Per Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.12.83 Months
Phase 3 Double-blinded: PlaceboPhase 3 Double Blind: Progression-free Survival (PFS) as Per Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.12.07 Months
p-value: 0.011495% CI: [0.5191, 0.9509]Log Rank
Primary

Phase 3 Open Label: Progression-free Survival (PFS) as Per RECIST Version 1.1

PFS was defined as the time from the date of randomization in the Phase 3 open-label period until the first date of IRC-confirmed PD per RECIST version 1.1, or death due to any cause. PD was defined as at least a 20% increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.

Time frame: From the date of randomization in the Phase 3 open label period until the first date of disease progression, or death due to any cause whichever occurred first (up to 57 months)

Population: The Phase 3 Open-Label Population (Ph3-OL) consisted of all participants in Phase 3 who were randomized to placebo in the blinded phase, entered the open-label period, and received at least one dose of open-label selinexor.

ArmMeasureValue (MEDIAN)
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Progression-free Survival (PFS) as Per RECIST Version 1.12.73 Months
Secondary

Phase 2 Double Blind: Number of Participants With TEAEs and Serious TEAEs

An adverse event was defined as any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of study treatment, whether or not considered related to the study treatment. A serious adverse event (SAE) was an AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial or prolonged inpatient hospitalization; congenital anomaly/birth defect or was otherwise considered medically important. TEAEs were defined as those AEs that develop or worsen after the first dose of study drug. TEAEs included both serious and non-serious TEAEs.

Time frame: From start of study drug administration up to 70 months

Population: The Phase 2 Safety Population (Ph2-SAF) consisted of all participants in Phase 2 who had received at least one dose of blinded study treatment.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Phase 3 Double-blinded: SelinexorPhase 2 Double Blind: Number of Participants With TEAEs and Serious TEAEsParticipants with TEAEs27 Participants
Phase 3 Double-blinded: SelinexorPhase 2 Double Blind: Number of Participants With TEAEs and Serious TEAEsParticipants with Serious TEAEs4 Participants
Phase 3 Double-blinded: PlaceboPhase 2 Double Blind: Number of Participants With TEAEs and Serious TEAEsParticipants with TEAEs29 Participants
Phase 3 Double-blinded: PlaceboPhase 2 Double Blind: Number of Participants With TEAEs and Serious TEAEsParticipants with Serious TEAEs6 Participants
Secondary

Phase 2 Double Blind: Overall Response Rate (ORR)

ORR was defined as the percentage of participants who achieved CR or PR, per RECIST v.1.1. CR was defined as disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) had reduction in short axis to \<10 mm. PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.

Time frame: From date of randomization until the documentation of CR or PR (up to 70 months)

Population: The Ph2-ITT consisted of all participants randomized to study treatment in Phase 2, regardless of whether or not they received study treatment.

ArmMeasureValue (NUMBER)
Phase 3 Double-blinded: SelinexorPhase 2 Double Blind: Overall Response Rate (ORR)0 Percentage of participants
Phase 3 Double-blinded: PlaceboPhase 2 Double Blind: Overall Response Rate (ORR)0 Percentage of participants
Secondary

Phase 2 Double Blind: Overall Survival (OS)

OS was defined as the duration (in months) from the date of randomization to death from any cause. Participants last known to be alive were censored at the date of discontinuation from the study, or database cut date, whichever was earlier.

Time frame: From the date of randomization until death due to any cause, whichever occurred first (up to 70 months)

Population: The Ph2-ITT consisted of all participants randomized to study treatment in Phase 2, regardless of whether or not they received study treatment.

ArmMeasureValue (MEDIAN)
Phase 3 Double-blinded: SelinexorPhase 2 Double Blind: Overall Survival (OS)17.31 Months
Phase 3 Double-blinded: PlaceboPhase 2 Double Blind: Overall Survival (OS)16.07 Months
Secondary

Phase 2 Double Blind: Time to Next Treatment (TTNT)

TTNT was defined as time since randomization until the first new antineoplastic therapy or death due to any cause, whichever occurs first.

Time frame: Time from randomization to the first new antineoplastic therapy or death due to any cause (up to 70 months)

Population: The Ph2-ITT consisted of all participants randomized to study treatment in Phase 2, regardless of whether or not they received study treatment.

ArmMeasureValue (MEDIAN)
Phase 3 Double-blinded: SelinexorPhase 2 Double Blind: Time to Next Treatment (TTNT)4.96 Months
Phase 3 Double-blinded: PlaceboPhase 2 Double Blind: Time to Next Treatment (TTNT)2.92 Months
Secondary

Phase 2 Double Blind: Time-to-Progression (TTP) as Per RECIST Version 1.1

TTP was defined as the time from date of randomization until ICR-determined PD as per RECIST version 1.1, or death due to disease progression, whichever occurred first. PD was defined as at least a 20% increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.

Time frame: From date of randomization until the first date of PD or death due to any cause, whichever occurred first (up to 70 months)

Population: The Ph2-ITT consisted of all participants randomized to study treatment in Phase 2, regardless of whether or not they received study treatment.

ArmMeasureValue (MEDIAN)
Phase 3 Double-blinded: SelinexorPhase 2 Double Blind: Time-to-Progression (TTP) as Per RECIST Version 1.13.02 Months
Phase 3 Double-blinded: PlaceboPhase 2 Double Blind: Time-to-Progression (TTP) as Per RECIST Version 1.12.76 Months
Secondary

Phase 2 Open Label: Number of Participants With TEAEs and Serious TEAEs

An adverse event was defined as any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of study treatment, whether or not considered related to the study treatment. An SAE was an AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial or prolonged inpatient hospitalization; congenital anomaly/birth defect or was otherwise considered medically important. TEAEs were defined as those AEs that develop or worsen after the first dose of study drug. TEAEs included both serious and non-serious TEAEs.

Time frame: From start of study drug administration up to 70 months

Population: The Ph2-OL consisted of all participants in Phase 2 who were randomized to placebo in the blinded phase, entered open-label period, and received at least one dose of open-label selinexor.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Phase 3 Double-blinded: SelinexorPhase 2 Open Label: Number of Participants With TEAEs and Serious TEAEsParticipants with Serious TEAEs13 Participants
Phase 3 Double-blinded: SelinexorPhase 2 Open Label: Number of Participants With TEAEs and Serious TEAEsParticipants with TEAEs24 Participants
Secondary

Phase 2 Open Label: Overall Response Rate (ORR)

ORR was defined as the percentage of participants who achieved CR or PR, per RECIST v.1.1. CR was defined as disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) had reduction in short axis to \<10 mm. PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.

Time frame: From date of randomization in the Phase 2 open-label period until the documentation of CR or PR (up to 70 months)

Population: The Ph2-OL consisted of all participants in Phase 2 who were randomized to placebo in the blinded phase, entered the open-label period, and received at least one dose of open-label selinexor. Data could not be evaluated due to no CR or PR events.

ArmMeasureGroupValue (NUMBER)
Phase 3 Double-blinded: SelinexorPhase 2 Open Label: Overall Response Rate (ORR)Participants who achieved CR0 Percentage of participants
Phase 3 Double-blinded: SelinexorPhase 2 Open Label: Overall Response Rate (ORR)Participants who achieved PR0 Percentage of participants
Secondary

Phase 2 Open Label: Overall Survival (OS)

OS was defined as the duration (in months) from the date of randomization in the Phase 2 open-label period to death from any cause. Participants last known to be alive were censored at the date of discontinuation from the study, or database cut date, whichever was earlier.

Time frame: From date of randomization in the Phase 2 open-label period until death due to any cause, whichever occurred first (up to 70 months)

Population: The Ph2-OL consisted of all participants in Phase 2 who were randomized to placebo in the blinded phase, entered the open-label period, and received at least one dose of open-label selinexor.

ArmMeasureValue (MEDIAN)
Phase 3 Double-blinded: SelinexorPhase 2 Open Label: Overall Survival (OS)8.90 Months
Secondary

Phase 2 Open Label: Time-to-Progression (TTP) as Per RECIST Version 1.1

TTP was defined as the time from date of randomization in the Phase 2 open-label period until ICR-determined PD per RECIST version 1.1, or death due to disease progression, whichever occurred first. PD was defined as at least a 20% increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.

Time frame: From date of randomization in the Phase 2 open-label period until the first date of PD or death due to any cause, whichever occurred first (up to 70 months)

Population: The Ph2-OL consisted of all participants in Phase 2 who were randomized to placebo in the blinded phase, entered the open-label period, and received at least one dose of open-label selinexor.

ArmMeasureValue (MEDIAN)
Phase 3 Double-blinded: SelinexorPhase 2 Open Label: Time-to-Progression (TTP) as Per RECIST Version 1.11.38 Months
Secondary

Phase 3 Double Blind: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)

The QLQ-C30 is a 30-item questionnaire developed to assess the quality of life of patients with cancer. QLQ-C30 contains 30 questions that include five functional scales (physical, role, emotional, social, and cognitive functioning); three symptom scales (fatigue, nausea/vomiting and pain); six single-item symptom items (dyspnea, insomnia, appetite loss, constipation, diarrhea, and financial difficulties); and global health status/quality of life (QoL). Most questions used a 4-point scale (from 1 'Not at all' to 4 'Very much'); 2 questions used a 7-point scale (from 1 'very poor' to 7 'Excellent'). Scores were averaged and transformed to a 0-100 scale. For the functional scales and the global health status/QoL, a higher score represents a better level of functioning (better health status); for the symptom scales/items, a higher score represents a higher level of symptomatology/problems (worse health status).

Time frame: Baseline up to Day 1387

Population: The Ph3-ITT consisted of all participants randomized to study treatment in Phase 3, regardless of whether or not they received study treatment. Here, Overall number of participants analyzed signifies those participants who were evaluable for this outcome measure.

ArmMeasureGroupValue (MEAN)
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Global Health Status33.33 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Cognitive Functioning0.00 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Fatigue-22.22 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Insomnia33.33 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Constipation0.00 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Diarrhoea33.33 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Physical Functioning20.00 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Role Functioning16.67 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Emotional Functioning8.33 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Social Functioning50.00 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Nausea and Vomiting16.67 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Pain0.00 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Dyspnoea0.00 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Appetite Loss0.00 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Financial Difficulties-66.67 Score on a Scale
Secondary

Phase 3 Double Blind: Duration of Response (DOR)

DOR was defined as the time from first occurrence of CR or PR until the first date of PD per RECIST version 1.1 or death. CR was defined as disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) had reduction in short axis to \<10 mm. PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. PD was defined as at least a 20% increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.

Time frame: From first occurrence of CR or PR until the first date of PD (up to 70 months)

Population: The Ph3-ITT consisted of all participants randomized to study treatment in Phase 3, regardless of whether or not they received study treatment. Here, overall number of participants analyzed signifies those who had CR and PR in specified group/arm and phase.

ArmMeasureValue (NUMBER)
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Duration of Response (DOR)7.39 Months
Secondary

Phase 3 Double Blind: Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious TEAEs

An adverse event was defined as any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of study treatment, whether or not considered related to the study treatment. A serious adverse event (SAE) was an AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial or prolonged inpatient hospitalization; congenital anomaly/birth defect or was otherwise considered medically important. A TEAE was defined as those AEs that develop or worsen after the first dose of study drug. TEAEs included both serious and non-serious TEAEs.

Time frame: From start of study drug administration up to 70 months

Population: The Phase 3 Safety Population (Ph3-SAF) consisted of all participants in Phase 3 who had received at least one dose of blinded study treatment.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious TEAEsParticipants with TEAEs187 Participants
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious TEAEsParticipants with Serious TEAEs73 Participants
Phase 3 Double-blinded: PlaceboPhase 3 Double Blind: Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious TEAEsParticipants with TEAEs94 Participants
Phase 3 Double-blinded: PlaceboPhase 3 Double Blind: Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious TEAEsParticipants with Serious TEAEs18 Participants
Secondary

Phase 3 Double Blind: Overall Response Rate (ORR)

ORR was defined as the percentage of participants who achieved complete response (CR) or partial response (PR), per RECIST v.1.1. CR was defined as disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) had reduction in short axis to \<10 mm. PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.

Time frame: From date of randomization until the documentation of CR or PR (up to 70 months)

Population: The Ph3-ITT consisted of all participants randomized to study treatment in Phase 3, regardless of whether or not they received study treatment.

ArmMeasureValue (NUMBER)
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Overall Response Rate (ORR)2.7 Percentage of participants
Phase 3 Double-blinded: PlaceboPhase 3 Double Blind: Overall Response Rate (ORR)0 Percentage of participants
Secondary

Phase 3 Double Blind: Overall Survival (OS)

OS was defined as the duration (in months) from the date of randomization to death from any cause. Participants last known to be alive were censored at the date of discontinuation from the study, or database cut date, whichever was earlier.

Time frame: From date of randomization until death due to any cause, whichever occurred first (up to 70 months)

Population: The Ph3-ITT consisted of all participants randomized to study treatment in Phase 3, regardless of whether or not they received study treatment.

ArmMeasureValue (MEDIAN)
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Overall Survival (OS)10.38 Months
Phase 3 Double-blinded: PlaceboPhase 3 Double Blind: Overall Survival (OS)12.71 Months
Secondary

Phase 3 Double Blind: Progression-free Survival (PFS) as Per Investigator Assessment

PFS was defined as the time from date of randomization until the first date of PD, per RECIST version 1.1, or death due to any cause as defined by the Investigator based on clinical and/or radiologic criteria. PD was defined as at least a 20% increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.

Time frame: From the date of randomization until the first date of disease progression, or death due to any cause whichever occurred first (up to 70 months)

Population: The Ph3-ITT consisted of all participants randomized to study treatment in Phase 3, regardless of whether or not they received study treatment.

ArmMeasureValue (MEDIAN)
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Progression-free Survival (PFS) as Per Investigator Assessment2.89 Months
Phase 3 Double-blinded: PlaceboPhase 3 Double Blind: Progression-free Survival (PFS) as Per Investigator Assessment1.87 Months
Secondary

Phase 3 Double Blind: Time to Next Treatment (TTNT)

TTNT was defined as time since randomization until the first new antineoplastic therapy or death due to any cause, whichever occurs first.

Time frame: Time from randomization to the first new antineoplastic therapy or death due to any cause (up to 70 months)

Population: The Ph3-ITT consisted of all participants randomized to study treatment in Phase 3, regardless of whether or not they received study treatment.

ArmMeasureValue (MEDIAN)
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Time to Next Treatment (TTNT)5.42 Months
Phase 3 Double-blinded: PlaceboPhase 3 Double Blind: Time to Next Treatment (TTNT)3.22 Months
Secondary

Phase 3 Double Blind: Time-to-Progression (TTP) as Per RECIST Version 1.1

TTP was defined as the time from date of randomization until ICR-determined PD per RECIST version 1.1, or death due to disease progression, whichever occurred first. PD was defined as at least a 20% increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.

Time frame: From date of randomization until the first date of PD or death due to any cause, whichever occurred first (up to 70 months)

Population: The Ph3-ITT consisted of all participants randomized to study treatment in Phase 3, regardless of whether or not they received study treatment.

ArmMeasureValue (MEDIAN)
Phase 3 Double-blinded: SelinexorPhase 3 Double Blind: Time-to-Progression (TTP) as Per RECIST Version 1.12.83 Months
Phase 3 Double-blinded: PlaceboPhase 3 Double Blind: Time-to-Progression (TTP) as Per RECIST Version 1.12.10 Months
Secondary

Phase 3 Open Label: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)

The QLQ-C30 is a 30-item questionnaire developed to assess the quality of life of patients with cancer. QLQ-C30 contains 30 questions that include five functional scales (physical, role, emotional, social, and cognitive functioning); three symptom scales (fatigue, nausea/vomiting and pain); six single-item symptom items (dyspnea, insomnia, appetite loss, constipation, diarrhea, and financial difficulties); and global health status/quality of life (QoL). Most questions used a 4-point scale (from 1 'Not at all' to 4 'Very much'); 2 questions used a 7-point scale (from 1 'very poor' to 7 'Excellent'). Scores were averaged and transformed to a 0-100 scale. For the functional scales and the global health status/QoL, a higher score represents a better level of functioning (better health status); for the symptom scales/items, a higher score represents a higher level of symptomatology/problems (worse health status).

Time frame: Baseline up to Day 379

Population: The Ph3-OL consisted of all participants in Phase 3 who were randomized to placebo in the blinded phase, entered the open-label period, and received at least one dose of open-label selinexor.

ArmMeasureGroupValue (MEAN)
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Physical Functioning-40.00 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Role Functioning-33.33 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Pain0.00 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Global Health Status-16.67 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Emotional Functioning0.00 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Social Functioning-50.00 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Cognitive Functioning-16.67 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Fatigue66.67 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Nausea and Vomiting0.00 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Dyspnoea0.00 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Insomnia0.00 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Appetite Loss0.00 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Constipation0.00 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Diarrhoea0.00 Score on a Scale
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Financial Difficulties100.00 Score on a Scale
Secondary

Phase 3 Open Label: Number of Participants With TEAEs and Serious TEAEs

An adverse event was defined as any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of study treatment, whether or not considered related to the study treatment. An SAE was an AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial or prolonged inpatient hospitalization; congenital anomaly/birth defect or was otherwise considered medically important. TEAEs were defined as those AEs that develop or worsen after the first dose of study drug. TEAEs included both serious and non-serious TEAEs.

Time frame: From start of study drug administration up to 70 months

Population: The Ph3-OL consisted of all participants in Phase 3 who were randomized to placebo in the blinded phase, entered the open-label period, and received at least one dose of open-label selinexor.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Number of Participants With TEAEs and Serious TEAEsParticipants with TEAEs63 Participants
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Number of Participants With TEAEs and Serious TEAEsParticipants with Serious TEAEs25 Participants
Secondary

Phase 3 Open Label: Overall Response Rate (ORR)

ORR was defined as the percentage of participants who achieved CR or PR, per RECIST v.1.1. CR was defined as disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) had reduction in short axis to \<10 mm. PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.

Time frame: From date of randomization in the Phase 3 open label period until the documentation of CR or PR (up to 70 months)

Population: The Ph3-OL consisted of all participants in Phase 3 who were randomized to placebo in the blinded phase, entered the open-label period, and received at least one dose of open-label selinexor.

ArmMeasureValue (NUMBER)
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Overall Response Rate (ORR)3.2 Percentage of participants
Secondary

Phase 3 Open Label: Overall Survival (OS)

OS was defined as the duration (in months) from the date of randomization in the Phase 3 open-label period to death from any cause. Participants last known to be alive were censored at the date of discontinuation from the study, or database cut date, whichever was earlier.

Time frame: From date of randomization in phase 3 open label period until death due to any cause, whichever occurred first (up to 70 months)

Population: The Ph3-OL consisted of all participants in Phase 3 who were randomized to placebo in the blinded phase, entered the open-label period, and received at least one dose of open-label selinexor.

ArmMeasureValue (MEDIAN)
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Overall Survival (OS)10.18 Months
Secondary

Phase 3 Open Label: Time-to-Progression (TTP) as Per RECIST Version 1.1

TTP was defined as the time from date of randomization in the Phase 3 open-label period until ICR-determined PD per RECIST version 1.1, or death due to disease progression, whichever occurred first. PD was defined as at least a 20% increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.

Time frame: From date of randomization in the Phase 3 open label period until the first date of PD or death due to any cause, whichever occurred first (up to 70 months)

Population: The Ph3-OL consisted of all participants in Phase 3 who were randomized to placebo in the blinded phase, entered the open-label period, and received at least one dose of open-label selinexor.

ArmMeasureValue (MEDIAN)
Phase 3 Double-blinded: SelinexorPhase 3 Open Label: Time-to-Progression (TTP) as Per RECIST Version 1.12.73 Months

Source: ClinicalTrials.gov · Data processed: Mar 1, 2026