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Selinexor in Treating Younger Patients With Recurrent or Refractory Solid Tumors or High-Grade Gliomas

A Phase 1 Study of Selinexor (KPT-330), A Selective XPO1 Inhibitor, in Recurrent and Refractory Pediatric Solid Tumors, Including CNS Tumors

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02323880
Enrollment
59
Registered
2014-12-24
Start date
2015-10-30
Completion date
2024-12-31
Last updated
2025-01-14

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

Conditions

Malignant Glioma, Recurrent Brain Neoplasm, Recurrent Childhood Central Nervous System Neoplasm, Recurrent Childhood Glioblastoma, Recurrent Lymphoma, Recurrent Malignant Solid Neoplasm, Refractory Lymphoma, Refractory Malignant Solid Neoplasm, Refractory Primary Central Nervous System Neoplasm, WHO Grade 3 Glioma

Brief summary

This phase I trial studies the side effects and best dose of selinexor in treating younger patients with solid tumors or central nervous system (CNS) tumors that have come back (recurrent) or do not respond to treatment (refractory). Drugs used in chemotherapy, such as selinexor, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading.

Detailed description

PRIMARY OBJECTIVES: I. To determine the recommended phase 2 dose (RP2D) or the maximum tolerated dose (MTD) of the tablet formulation of selinexor in children with recurrent/refractory solid and CNS tumors. II. To describe the toxicities of selinexor in children with recurrent/refractory solid and CNS tumors. III. To characterize the pharmacokinetics of the tablet formulation of selinexor in children with recurrent/refractory solid and CNS tumors. SECONDARY OBJECTIVES: I. To determine the antitumor effect of selinexor in a preliminary manner in children with recurrent/refractory solid and CNS tumors. II. To determine the pharmacodynamic properties of selinexor in children and adolescents with refractory solid tumors in plasma proteins and whole blood ribonucleic acid (RNA). III. To explore the penetration, pharmacodynamic effects, and biologic effects of selinexor in tumor tissue of patients with recurrent/refractory high-grade gliomas (HGG) requiring resection. IV. To further assess the toxicity and antitumor effects of selinexor in children with recurrent/refractory HGG in expanded cohorts following dose-escalation by measuring rate of objective radiographic response (medical patients) and rate of progression-free survival (PFS) six months from the start of treatment (surgical patients). OUTLINE: This is a dose escalation study. Patients receive selinexor orally (PO) on either a twice weekly (days 1, 3, 8, 10, 15, 17) or once weekly (days 1, 8, 15, and 22) schedule. Treatment repeats every 28 days for up to 24 cycles in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up for 30 days.

Interventions

OTHERPharmacological Study

Correlative studies

DRUGSelinexor

Given PO

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
Children's Oncology Group
Lead SponsorNETWORK

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
12 Months to 21 Years
Healthy volunteers
No

Inclusion criteria

* Patients must have a body surface area (BSA) \>= 0.84 m\^2 * Diagnosis: * Part A: Patients with recurrent or refractory solid tumors, including lymphoma and CNS tumors, are eligible; patients must have had histologic verification of malignancy at original diagnosis or relapse except in patients with intrinsic brain stem tumors, optic pathway gliomas, or patients with pineal tumors and elevations of cerebrospinal fluid (CSF) or serum tumor markers including alpha-fetoprotein or beta-human chorionic gonadotropin (HCG) * Part B: Patients with recurrent or refractory high grade glioma (World Health Organization \[WHO\] grade III/IV) including disseminated tumors (excluding diffuse intrinsic pontine glioma \[DIPG\]), not requiring surgical resection; patients must have had histologic verification of malignancy at original diagnosis or relapse * Part C: Patients with recurrent or refractory high grade glioma (WHO grade III/IV) and requiring surgical resection (excluding DIPG and disseminated tumors), who in the opinion of treating physicians, are medically stable to receive 2 doses of selinexor (8-10 days of treatment) before undergoing surgery without compromising the success of the procedure; note that if, in the opinion of treating physicians, current symptoms necessitate surgery before 2 doses will be able to be received, surgery should not be delayed to administer selinexor, and the patient would be ineligible for protocol therapy * Disease status: * Part A: Patients must have either measurable or evaluable disease * Parts B and C: Patients must have measurable disease on imaging * Patient's current disease state must be one for which there is no known curative therapy or therapy proven to prolong survival with an acceptable quality of life * Karnofsky \>= 50% for patients \> 16 years of age and Lansky \>= 50 for patients =\< 16 years of age; Note: Neurologic deficits in patients with CNS tumors must have been relatively stable for at least 7 days prior to study enrollment; patients who are unable to walk because of paralysis, but who are up in a wheelchair, will be considered ambulatory for the purpose of assessing the performance score * Patients must have fully recovered from the acute toxic effects of all prior anti-cancer therapy and must meet the following minimum duration from prior anti-cancer directed therapy prior to enrollment; if after the required timeframe, the numerical eligibility criteria are met, e.g. blood count criteria, the patient is considered to have recovered adequately * Myelosuppressive chemotherapy: At least 21 days after the last dose of myelosuppressive chemotherapy (42 days if prior nitrosourea) * Hematopoietic growth factors: At least 14 days after the last dose of a long-acting growth factor (e.g. Neulasta) or 7 days for short-acting growth factor; for agents that have known adverse events occurring beyond 7 days after administration, this period must be extended beyond the time during which adverse events are known to occur; the duration of this interval must be discussed with the study chair * Biologic (anti-neoplastic agent): At least 7 days after the last dose of a biologic agent; for agents that have known adverse events occurring beyond 7 days after administration, this period must be extended beyond the time during which adverse events are known to occur; the duration of this interval must be discussed with the study chair * Immunotherapy: At least 42 days after the completion of any type of immunotherapy, e.g. tumor vaccines * Antibodies: \>= 21 days must have elapsed from infusion of last dose of antibody, and toxicity related to prior antibody therapy must be recovered to grade =\< 1 * Corticosteroids: If used to modify immune adverse events related to prior therapy, \>= 14 days must have elapsed since last dose of corticosteroid * External beam radiation therapy (XRT): At least 14 days after local palliative XRT (small port); at least 150 days must have elapsed if prior total body irradiation (TBI), craniospinal XRT or if \>= 50% radiation of pelvis; at least 42 days must have elapsed if other substantial bone marrow (BM) radiation * Stem cell infusion without TBI: No evidence of active graft vs. host disease and at least 56 days must have elapsed after transplant or stem cell infusion * Patients must not have received prior exposure to selinexor * For patients with solid tumors without known bone marrow involvement: * \* Peripheral absolute neutrophil count (ANC) \>= 1000/mm\^3 * \* Platelet count \>= 100,000/mm\^3 (transfusion independent, defined as not receiving platelet transfusions for at least 7 days prior to enrollment) * \* Hemoglobin \>= 8.0 g/dL at baseline (may receive red blood cell \[RBC\] transfusions) * Patients with known bone marrow metastatic disease will be eligible for study if they meet the blood counts (may receive transfusions provided they are not known to be refractory to red cell or platelet transfusions); these patients will not be evaluable for hematologic toxicity; at least 5 of every cohort of 6 patients must be evaluable for hematologic toxicity for the dose-escalation part of the study; if dose-limiting hematologic toxicity is observed, all subsequent patients enrolled on Part A must be evaluable for hematologic toxicity * Creatinine clearance or radioisotope glomerular filtration rate (GFR) \>= 70 ml/min/1.73 m\^2 or * A serum creatinine based on age/gender as follows: * =\< 0.6 mg/dL (patients age 1 to \< 2 years) * =\< 0.8 mg/dL (patients age 2 to \< 6 years) * =\< 1 mg/dL (patients age 6 to \< 10 years) * =\< 1.2 mg/dL (patients age 10 to \< 13 years) * =\< 1.4 mg/dL (female patients age \>= 13 years) * =\< 1.5 mg/dL (male patients age 13 to \< 16 years) * =\< 1.7 mg/dL (male patients age \>= 16 years) * Total bilirubin =\< 1.5 x upper limit of normal (ULN) for age * Serum glutamate pyruvate transaminase (SGPT) (alanine aminotransferase \[ALT\]) =\< 3 x ULN = 135 U/L; for the purpose of this study, the ULN for SGPT is 45 U/L * Serum albumin \>= 2 g/dL * Serum amylase =\< 1.5 x ULN * Serum lipase =\< 1.5 x ULN * Patients with seizure disorder may be enrolled if on anticonvulsants and well controlled * Patients must be able to swallow tablets whole * Part C: Archived paraffin-embedded tissue (20 unstained slides or a tumor block) from a prior resection must be available as a control for correlative studies; if tissue blocks or slides are unavailable, the study chair must be notified prior to enrollment * All patients and/or their parents or legally authorized representatives must sign a written informed consent; assent, when appropriate, will be obtained according to institutional guidelines

Exclusion criteria

* Pregnant or breast-feeding women will not be entered on this study, since there is yet no available information regarding human fetal or teratogenic toxicities; based on its mechanism of action and findings in animals, selinexor may cause fetal harm when administered to a pregnant woman; pregnancy tests must be obtained in girls who are post-menarchal; males with female partners of reproductive potential or females of reproductive potential may not participate unless they have agreed to use two effective methods of birth control- including a medically accepted barrier method of contraceptive method (e.g., male or female condom) for the entire period in which they are receiving protocol therapy and for at least 1 week following their last dose of study drug; abstinence is an acceptable method of birth control * Concomitant medications * Corticosteroids: Patients receiving corticosteroids who have not been on a stable or decreasing dose of corticosteroid for at least 7 days prior to enrollment are not eligible; if used to modify immune adverse events related to prior therapy, \>= 14 days must have elapsed since last dose of corticosteroid * Investigational drugs: Patients who are currently receiving another investigational drug are not eligible * Anti-cancer agents: Patients who are currently receiving other anti-cancer agents are not eligible * Patients who have an uncontrolled infection are not eligible * Patients who have received a prior solid organ transplantation are not eligible * Patients who, in the opinion of the investigator, may not be able to comply with the safety monitoring requirements of the study are not eligible * Patients with body mass index (BMI) \< 3rd percentile for age, as defined by WHO criteria for patients 1-2 years of age and Centers for Disease Control and Prevention (CDC) criteria for patients \> 2 years of age, are not eligible * Patients with grade 3 ataxia or grade \>1 extrapyramidal movement disorder are not eligible * Patients with known macular degeneration, uncontrolled glaucoma, or cataracts are not eligible

Design outcomes

Primary

MeasureTime frameDescription
Number of Dose Limiting Toxicities of SelinexorUp to 28 daysThe number of toxicity evaluable patients experiencing a dose limiting toxicity at least possibly attributable to selinexor by study part, schema, and dose level.
Number of Adverse Events of SelinexorUp to 6 years 11 monthsThe number of patients experiencing adverse events at least possibly attributable to selinexor by study part, schema, and dose level.
Area Under the Drug Concentration Curve of SelinexorUp to 2 daysThe median (min, max) of the area under the drug concentration curve evaluated at 0.5, 1, 2, 3, 4, 6, 8, and 24 hours post dose on day 1 for Selinexor by study part, schema, and dose level.

Secondary

MeasureTime frameDescription
Radiographic Response of Selinexor in High-grade Glioma (HGG) PatientsUp to 6 years 11 monthsNumber of HGG patients with radiographic response by study part, schema, and dose level.
Antitumor Effect of SelinexorUp to 6 years 11 monthsNumber of patients with best response using RECIST 1.1 criteria of partial response (at least a 30% decrease in the sum of the diameters of target lesions) or complete response (disappearance of all target and non-target lesions and any pathological lymph nodes must have reduction in short axis to \<10 mm).
Progression-free Survival of Selinexor in Surgical High-grade Glioma (HGG) PatientsUp to 6 monthsNumber of surgical HGG patients with 6-month progression-free survival using the Response Evaluation Criteria in solid tumors criteria (RECIST v1.1) defining best response of progressive disease including at least 20% increase in the sum of the diameters of target lesions, taking as reference the smallest sum on study and no prior stable disease, partial response, or complete response.
Pharmacodynamics of SelinexorUp to 28 daysMedian (min,max) ratio of XPO1 mRNA expression after treatment to pre-treatment by study part, schema, and dose
Pharmacodynamics of Selinexor in High-grade Glioma (HGG) PatientsUp to 28 daysMedian (min,max) ratio of XPO1 mRNA expression after treatment to pre-treatment by study part, schema, and dose

Countries

United States

Participant flow

Participants by arm

ArmCount
Part A: Dose Level 1
35 mg/m\^2 of Selinexor PO twice weekly on a days 1 and 3 schedule (Mon/Wed, Tues/Thurs, or Wed/Fri) of a 28 day, or 8 dose course (Pre-Amendment #1)
6
Part A: Dose Level 1 (DL1)
35 mg/m\^2 of Selinexor PO twice weekly on a days 1 and 3 schedule (Mon/Wed, Tues/Thurs, or Wed/Fri) on Weeks 1-3, Week 4 rest, on a 28 day course (Amendment 1)
13
Part A: Dose Level -1 (DL -1)
20 mg/m\^2 of Selinexor PO twice weekly on a days 1 and 3 schedule (Mon/Wed, Tues/Thurs, or Wed/Fri) on Weeks 1-3, Week 4 rest, on a 28 day course
6
Part A: Weekly Dose Level 1 (WDL 1)
45 mg/m\^2 Selinexor once weekly, on days 1, 8, 15, and 22 of a 28-day cycle
6
Part A: Weekly Dose Level -1 (WDL -1)
35 mg/m2 Selinexor once weekly, on days 1, 8, 15, and 22 of a 28-day cycle
6
Part B: Weekly Dose Level -1 (WDL -1)
35 mg/m\^2 Selinexor once weekly, on days 1, 8, 15, and 22 of a 28-day cycle
10
Part PK: Dose Level -1 (DL -1)
20 mg/m2 of Selinexor PO twice weekly on a days 1 and 3 schedule (Mon/Wed, Tues/Thurs, or Wed/Fri) on Weeks 1-3, Week 4 rest, on a 28 day course
6
Part PK: Weekly Dose Level -1 (WDL -1)
35 mg/m\^2 Selinexor once weekly, on days 1, 8, 15, and 22 of a 28-day cycle
6
Total59

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007
Overall StudyAdverse Event20111010
Overall StudyDeath00000100
Overall StudyLack of Efficacy411554846
Overall StudyPhysician Decision00001110
Overall StudyWithdrawal by Subject02000000

Baseline characteristics

CharacteristicPart A: Dose Level 1 (DL1)Part A: Dose Level -1 (DL -1)Part A: Weekly Dose Level 1 (WDL 1)Part A: Weekly Dose Level -1 (WDL -1)Part B: Weekly Dose Level -1 (WDL -1)Part PK: Dose Level -1 (DL -1)Part A: Dose Level 1Part PK: Weekly Dose Level -1 (WDL -1)Total
Age, Categorical
<=18 years
13 Participants6 Participants4 Participants5 Participants9 Participants5 Participants6 Participants6 Participants54 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
0 Participants0 Participants2 Participants1 Participants1 Participants1 Participants0 Participants0 Participants5 Participants
Age, Continuous16 years15.5 years16.5 years14 years15.5 years10.5 years13.5 years11 years15 years
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants0 Participants1 Participants1 Participants1 Participants0 Participants2 Participants1 Participants8 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
10 Participants6 Participants4 Participants4 Participants8 Participants6 Participants4 Participants5 Participants47 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants0 Participants1 Participants1 Participants1 Participants0 Participants0 Participants0 Participants4 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants1 Participants0 Participants1 Participants2 Participants0 Participants0 Participants0 Participants4 Participants
Race (NIH/OMB)
Black or African American
3 Participants0 Participants0 Participants0 Participants1 Participants3 Participants0 Participants1 Participants8 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants1 Participants0 Participants1 Participants0 Participants0 Participants0 Participants2 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants0 Participants1 Participants2 Participants1 Participants0 Participants2 Participants2 Participants10 Participants
Race (NIH/OMB)
White
8 Participants5 Participants4 Participants3 Participants5 Participants3 Participants4 Participants3 Participants35 Participants
Sex: Female, Male
Female
9 Participants3 Participants4 Participants5 Participants3 Participants3 Participants2 Participants4 Participants33 Participants
Sex: Female, Male
Male
4 Participants3 Participants2 Participants1 Participants7 Participants3 Participants4 Participants2 Participants26 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
EG007
affected / at risk
deaths
Total, all-cause mortality
0 / 61 / 130 / 60 / 60 / 62 / 100 / 60 / 6
other
Total, other adverse events
6 / 613 / 136 / 66 / 66 / 610 / 106 / 66 / 6
serious
Total, serious adverse events
1 / 65 / 133 / 62 / 63 / 63 / 100 / 63 / 6

Outcome results

Primary

Area Under the Drug Concentration Curve of Selinexor

The median (min, max) of the area under the drug concentration curve evaluated at 0.5, 1, 2, 3, 4, 6, 8, and 24 hours post dose on day 1 for Selinexor by study part, schema, and dose level.

Time frame: Up to 2 days

Population: All eligible patients

ArmMeasureValue (MEDIAN)
Part A: Dose Level 1Area Under the Drug Concentration Curve of Selinexor5030 h*ng/ml
Part A: Dose Level 1 (DL 1)Area Under the Drug Concentration Curve of Selinexor4656.8 h*ng/ml
Part A: Dose Level -1 (DL -1)Area Under the Drug Concentration Curve of Selinexor2602.4 h*ng/ml
Part A: Weekly Dose Level 1 (WDL 1)Area Under the Drug Concentration Curve of Selinexor6173.2 h*ng/ml
Part A: Weekly Dose Level -1 (WDL -1)Area Under the Drug Concentration Curve of Selinexor7135.9 h*ng/ml
Part B: Weekly Dose Level -1 (WDL -1)Area Under the Drug Concentration Curve of Selinexor4666.9 h*ng/ml
Part PK: Dose Level -1 (DL -1)Area Under the Drug Concentration Curve of Selinexor3132.8 h*ng/ml
Part PK: Weekly Dose Level -1 (WDL -1)Area Under the Drug Concentration Curve of Selinexor6505.5 h*ng/ml
Primary

Number of Adverse Events of Selinexor

The number of patients experiencing adverse events at least possibly attributable to selinexor by study part, schema, and dose level.

Time frame: Up to 6 years 11 months

Population: Toxicity evaluable patients

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Dose Level 1Number of Adverse Events of Selinexor6 Participants
Part A: Dose Level 1 (DL 1)Number of Adverse Events of Selinexor12 Participants
Part A: Dose Level -1 (DL -1)Number of Adverse Events of Selinexor6 Participants
Part A: Weekly Dose Level 1 (WDL 1)Number of Adverse Events of Selinexor6 Participants
Part A: Weekly Dose Level -1 (WDL -1)Number of Adverse Events of Selinexor6 Participants
Part B: Weekly Dose Level -1 (WDL -1)Number of Adverse Events of Selinexor7 Participants
Part PK: Dose Level -1 (DL -1)Number of Adverse Events of Selinexor6 Participants
Part PK: Weekly Dose Level -1 (WDL -1)Number of Adverse Events of Selinexor6 Participants
Primary

Number of Dose Limiting Toxicities of Selinexor

The number of toxicity evaluable patients experiencing a dose limiting toxicity at least possibly attributable to selinexor by study part, schema, and dose level.

Time frame: Up to 28 days

Population: Toxicity evaluable patients

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Dose Level 1Number of Dose Limiting Toxicities of Selinexor0 Participants
Part A: Dose Level 1 (DL 1)Number of Dose Limiting Toxicities of Selinexor4 Participants
Part A: Dose Level -1 (DL -1)Number of Dose Limiting Toxicities of Selinexor1 Participants
Part A: Weekly Dose Level 1 (WDL 1)Number of Dose Limiting Toxicities of Selinexor2 Participants
Part A: Weekly Dose Level -1 (WDL -1)Number of Dose Limiting Toxicities of Selinexor1 Participants
Part B: Weekly Dose Level -1 (WDL -1)Number of Dose Limiting Toxicities of Selinexor0 Participants
Part PK: Dose Level -1 (DL -1)Number of Dose Limiting Toxicities of Selinexor2 Participants
Part PK: Weekly Dose Level -1 (WDL -1)Number of Dose Limiting Toxicities of Selinexor0 Participants
Secondary

Antitumor Effect of Selinexor

Number of patients with best response using RECIST 1.1 criteria of partial response (at least a 30% decrease in the sum of the diameters of target lesions) or complete response (disappearance of all target and non-target lesions and any pathological lymph nodes must have reduction in short axis to \<10 mm).

Time frame: Up to 6 years 11 months

Population: Responsive patients

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Dose Level 1Antitumor Effect of Selinexor0 Participants
Part A: Dose Level 1 (DL 1)Antitumor Effect of Selinexor0 Participants
Part A: Dose Level -1 (DL -1)Antitumor Effect of Selinexor0 Participants
Part A: Weekly Dose Level 1 (WDL 1)Antitumor Effect of Selinexor0 Participants
Part A: Weekly Dose Level -1 (WDL -1)Antitumor Effect of Selinexor0 Participants
Part B: Weekly Dose Level -1 (WDL -1)Antitumor Effect of Selinexor0 Participants
Part PK: Dose Level -1 (DL -1)Antitumor Effect of Selinexor0 Participants
Part PK: Weekly Dose Level -1 (WDL -1)Antitumor Effect of Selinexor0 Participants
Secondary

Pharmacodynamics of Selinexor

Median (min,max) ratio of XPO1 mRNA expression after treatment to pre-treatment by study part, schema, and dose

Time frame: Up to 28 days

Population: There were 0 (zero) patients from Part A: Dose Level 1 (Pre-amendment #1). Participation in the PD studies was optional. The subjects who had matched pre- and post-treatment blood samples were analyzed; not all the subjects had samples collected for PD analysis.

ArmMeasureValue (MEDIAN)
Part A: Dose Level 1Pharmacodynamics of Selinexor7.1 Ratio of XPO1 mRNA expression
Part A: Dose Level 1 (DL 1)Pharmacodynamics of Selinexor4 Ratio of XPO1 mRNA expression
Part A: Dose Level -1 (DL -1)Pharmacodynamics of Selinexor5.5 Ratio of XPO1 mRNA expression
Part A: Weekly Dose Level 1 (WDL 1)Pharmacodynamics of Selinexor1.7 Ratio of XPO1 mRNA expression
Part A: Weekly Dose Level -1 (WDL -1)Pharmacodynamics of Selinexor4.6 Ratio of XPO1 mRNA expression
Part B: Weekly Dose Level -1 (WDL -1)Pharmacodynamics of Selinexor7.9 Ratio of XPO1 mRNA expression
Part PK: Dose Level -1 (DL -1)Pharmacodynamics of Selinexor5.4 Ratio of XPO1 mRNA expression
Secondary

Pharmacodynamics of Selinexor in High-grade Glioma (HGG) Patients

Median (min,max) ratio of XPO1 mRNA expression after treatment to pre-treatment by study part, schema, and dose

Time frame: Up to 28 days

Population: high-grade glioma (HGG) patients with data available

ArmMeasureValue (MEDIAN)
Part A: Dose Level 1Pharmacodynamics of Selinexor in High-grade Glioma (HGG) Patients4.2 Ratio of XPO1 mRNA expression
Part A: Dose Level 1 (DL 1)Pharmacodynamics of Selinexor in High-grade Glioma (HGG) Patients4.6 Ratio of XPO1 mRNA expression
Part A: Dose Level -1 (DL -1)Pharmacodynamics of Selinexor in High-grade Glioma (HGG) Patients5.9 Ratio of XPO1 mRNA expression
Secondary

Progression-free Survival of Selinexor in Surgical High-grade Glioma (HGG) Patients

Number of surgical HGG patients with 6-month progression-free survival using the Response Evaluation Criteria in solid tumors criteria (RECIST v1.1) defining best response of progressive disease including at least 20% increase in the sum of the diameters of target lesions, taking as reference the smallest sum on study and no prior stable disease, partial response, or complete response.

Time frame: Up to 6 months

Population: high-grade glioma (HGG) patients

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Dose Level 1Progression-free Survival of Selinexor in Surgical High-grade Glioma (HGG) Patients0 Participants
Part A: Dose Level 1 (DL 1)Progression-free Survival of Selinexor in Surgical High-grade Glioma (HGG) Patients0 Participants
Part A: Dose Level -1 (DL -1)Progression-free Survival of Selinexor in Surgical High-grade Glioma (HGG) Patients0 Participants
Part A: Weekly Dose Level 1 (WDL 1)Progression-free Survival of Selinexor in Surgical High-grade Glioma (HGG) Patients0 Participants
Part A: Weekly Dose Level -1 (WDL -1)Progression-free Survival of Selinexor in Surgical High-grade Glioma (HGG) Patients0 Participants
Part B: Weekly Dose Level -1 (WDL -1)Progression-free Survival of Selinexor in Surgical High-grade Glioma (HGG) Patients0 Participants
Part PK: Dose Level -1 (DL -1)Progression-free Survival of Selinexor in Surgical High-grade Glioma (HGG) Patients0 Participants
Part PK: Weekly Dose Level -1 (WDL -1)Progression-free Survival of Selinexor in Surgical High-grade Glioma (HGG) Patients0 Participants
Secondary

Radiographic Response of Selinexor in High-grade Glioma (HGG) Patients

Number of HGG patients with radiographic response by study part, schema, and dose level.

Time frame: Up to 6 years 11 months

Population: high-grade glioma (HGG) patients

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Dose Level 1Radiographic Response of Selinexor in High-grade Glioma (HGG) Patients0 Participants
Part A: Dose Level 1 (DL 1)Radiographic Response of Selinexor in High-grade Glioma (HGG) Patients0 Participants
Part A: Dose Level -1 (DL -1)Radiographic Response of Selinexor in High-grade Glioma (HGG) Patients0 Participants
Part A: Weekly Dose Level 1 (WDL 1)Radiographic Response of Selinexor in High-grade Glioma (HGG) Patients0 Participants
Part A: Weekly Dose Level -1 (WDL -1)Radiographic Response of Selinexor in High-grade Glioma (HGG) Patients0 Participants
Part B: Weekly Dose Level -1 (WDL -1)Radiographic Response of Selinexor in High-grade Glioma (HGG) Patients0 Participants

Source: ClinicalTrials.gov · Data processed: Feb 13, 2026