MedPath

Selinexor in Advanced Liposarcoma

Phase 2
Completed
Conditions
Dedifferentiated Liposarcoma
Interventions
Drug: Placebo
Registration Number
NCT02606461
Lead Sponsor
Karyopharm Therapeutics Inc
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* selinexor, will be withdrawn from further treatment and followed for survival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

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
342
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

Study & Design

Study Type
INTERVENTIONAL
Study Design
CROSSOVER
Arm && Interventions
GroupInterventionDescription
Phase 2 Double-blinded: Placebo Followed by Open Label- SelinexorPlaceboParticipants received a fixed blinding dose of placebo matched to selinexor twice-weekly on Day 1 and 3 during each 6-week (42-day) cycle until PD in double-blinded treatment period. Participants in the placebo group who had PD during the Phase 2 double-blinded treatment, will be elected to cross over to open-label selinexor.
Phase 3 Double-blinded: Placebo Followed by Open Label- SelinexorPlaceboParticipants received a fixed blinding dose of placebo matched to selinexor twice-weekly on Day 1 and 3 during each 6-week (42-day) cycle until PD or development of unacceptable toxicity. Participants in the placebo group who had PD during the Phase 3 double-blinded treatment, will be elected to cross over to open-label selinexor.
Phase 2 Double-blinded: SelinexorSelinexorParticipants received a fixed blinding dose of 60 milligrams (mg) selinexor twice-weekly on Day 1 and 3 during each 6-week (42-day) cycle until progressive disease (PD).
Phase 3 Double-blinded: SelinexorSelinexorParticipants received a fixed blinding dose of 60 mg selinexor twice-weekly on Day 1 and 3 during each 6-week (42-day) cycle until PD.
Primary Outcome Measures
NameTimeMethod
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 Outcome Measures
NameTimeMethod
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.

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: 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 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 months

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.

Phase 3 Open Label: Number of Participants With TEAEs and Serious TEAEsFrom start of study drug administration up to 70 months

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.

Phase 2 Double Blind: Number of Participants With TEAEs and Serious TEAEsFrom start of study drug administration up to 70 months

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.

Phase 2 Open Label: Number of Participants With TEAEs and Serious TEAEsFrom start of study drug administration up to 70 months

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.

Phase 3 Double Blind: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Baseline up to Day 1387

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).

Phase 3 Open Label: Change From Baseline in Quality-of-life Questionnaire 30 Item (QLQ-C30)Baseline up to Day 379

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).

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.

Trial Locations

Locations (71)

Cedars-Sinai Medical Center

🇺🇸

Los Angeles, California, United States

Sarcoma Oncology Center

🇺🇸

Santa Monica, California, United States

University of Pittsburgh Medical Center (UPMC)

🇺🇸

Pittsburgh, Pennsylvania, United States

MD Anderson

🇺🇸

Houston, Texas, United States

Rabin Medical Center

🇮🇱

Petach Tikva, Israel

Fred Hutchinson Cancer Research Center

🇺🇸

Seattle, Washington, United States

Timone University Hospital

🇫🇷

Marseille Cedex 5, France

UZ Brussel

🇧🇪

Brussels, Belgium

University of Colorado-Denver

🇺🇸

Denver, Colorado, United States

Oregon Health and Science

🇺🇸

Portland, Oregon, United States

Duke Institute of Cancer

🇺🇸

Durham, North Carolina, United States

Vanderbilt

🇺🇸

Nashville, Tennessee, United States

Fox Chase Cancer Center

🇺🇸

Philadelphia, Pennsylvania, United States

Northwestern Memorial Hospital

🇺🇸

Chicago, Illinois, United States

UCL Saint-Luc

🇧🇪

Brussels, Belgium

The Ottawa Hospital Cancer

🇨🇦

Ottawa, Ontario, Canada

Princess Margaret Hospital

🇨🇦

Toronto, Ontario, Canada

The Royal Marsden NHS Foundation Trust

🇬🇧

London, United Kingdom

Institut Curie

🇫🇷

Paris, France

James Cancer Center, Ohio State University

🇺🇸

Columbus, Ohio, United States

University of California, Los Angeles

🇺🇸

Los Angeles, California, United States

Stanford University

🇺🇸

Stanford, California, United States

Yale Cancer Center

🇺🇸

New Haven, Connecticut, United States

Johns Hopkins

🇺🇸

Baltimore, Maryland, United States

Dana Farber Cancer Institute

🇺🇸

Boston, Massachusetts, United States

Mayo Clinic Rochester

🇺🇸

Rochester, Minnesota, United States

Washington University School of Medicine

🇺🇸

Saint Louis, Missouri, United States

University of Michigan

🇺🇸

Ann Arbor, Michigan, United States

Columbia University Medical Center

🇺🇸

New York, New York, United States

Memorial Sloan Kettering Cancer Center

🇺🇸

New York, New York, United States

Northwell Health Physicians Partners

🇺🇸

New York, New York, United States

University of Pennsylvania

🇺🇸

Philadelphia, Pennsylvania, United States

UZ Gent

🇧🇪

Ghent, Belgium

Cross Cancer Center - Alberta Health Services

🇨🇦

Edmonton, Alberta, Canada

McGill University

🇨🇦

Montréal, Quebec, Canada

Oscar Lambret Center

🇫🇷

Lille Cedex 307, France

Institut Bergonie

🇫🇷

Bordeaux,, France

Centre Leon Berard

🇫🇷

Lyon Cedex, France

Institut Régional du Cancer de Montpellier (ICM)

🇫🇷

Montpellier, France

Institut Claudius Regaud

🇫🇷

Toulouse, France

CLCC Antoine Lacassagne

🇫🇷

Nice, France

Institut Gustave Roussy

🇫🇷

Villejuif, France

Helios Hospital Berlin-Buch

🇩🇪

Berlin, Germany

National Center for Tumor Diseases, Univeristy Hospital Heidelberg

🇩🇪

Heidelberg, Germany

University Hospital Mannheim

🇩🇪

Mannheim, Germany

Technische Universitaet Dresden Med. Fakultaet Carl Gustav Carus Med. Klinik u. Poliklinik I

🇩🇪

Dresden, Germany

Soroka University Medical Center

🇮🇱

Be'er Sheva, Israel

Sheba Medical Center

🇮🇱

Ramat Gan, Israel

Hadassah Medical Center

🇮🇱

Jerusalem, Israel

Tel Aviv Sourasky Medical

🇮🇱

Tel Aviv, Israel

Istituto Nazionale dei Tumori, Milan

🇮🇹

Milano, Italy

Candiolo Cancer Institute

🇮🇹

Candiolo, Italy

Assaf Harofe Medical Center

🇮🇱

Zerifin, Israel

Policlinico Universitario Campus Biomedico

🇮🇹

Roma, Italy

U.O.C. Oncologia Medica Oncology Department

🇮🇹

Palermo, Italy

"Germans Trias Pujol" University Hospital

🇪🇸

Badalona, Spain

Hospital Universitario Clínico San Carlos

🇪🇸

Madrid, Spain

Vall d´hebron University Hospital

🇪🇸

Barcelona, Spain

Hospital ICO Bellvitge

🇪🇸

Barcelona, Spain

Hospital Universitario Virgen Del Rocio

🇪🇸

Sevilla, Spain

Hospital La Fe Valencia

🇪🇸

Valencia, Spain

Sahlgrenska Universitetssjukhuset

🇸🇪

Göteborg, Sweden

Skane University Hospital

🇸🇪

Lund, Sweden

Onkologiska Kliniken

🇸🇪

Stockholm, Sweden

University College London Hospitals

🇬🇧

London, United Kingdom

Cambridge University Hospitals NHS Foundation Trust

🇬🇧

Cambridge, United Kingdom

The Christie

🇬🇧

Manchester, United Kingdom

Massachusetts General Hospital

🇺🇸

Boston, Massachusetts, United States

Klinik und Poliklinik für Innere Medizin III, Hämatologie und Onkologie Klinikum rechts der Isar der TU Muenchen

🇩🇪

Muenchen, Germany

Mayo Clinic

🇺🇸

Jacksonville, Florida, United States

Hospital Sant Pau Barcelona

🇪🇸

Barcelona, Spain

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