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Selinexor (Nexpovio®) (SVd) in Patients With Relapsed or Refractory Multiple Myeloma

A Non-interventional Study of Selinexor (Nexpovio®) in Combination With Bortezomib and Dexamethasone (SVd) in Patients With Relapsed or Refractory Multiple Myeloma (R/RMM)

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05954780
Acronym
SEATTLE
Enrollment
75
Registered
2023-07-20
Start date
2023-06-28
Completion date
2026-10-30
Last updated
2026-01-14

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

Conditions

Multiple Myeloma

Keywords

Multiple Myeloma, Selinexor, Bortezomib, Dexamethasone

Brief summary

The non-interventional study SEATTLE aims to answer open scientific questions regarding QoL and tolerability/safety and AE management of selinexor as well as effectiveness and dosing in clinical routine. Thus, SEATTLE will provide real-world evidence complementary to pivotal studies.

Detailed description

Multiple myeloma (MM) accounts for approximately 10% of hematological malignancies. Since MM patients are elderly and often comorbid patients, risk-adapted treatment strategies to further improve outcome in is crucial.Selinexor, a potent, oral, SINE (selective inhibitors of nuclear exports) binds reversibly to XPO. This leads to nuclear localization and functional activation of tumor suppressor proteins, which further leads to suppression of nuclear factor κB activity, and reduction in oncoprotein mRNA translation. All this induces apoptosis of tumor cells. Since treatment options for MM are various and the most important factor is to keep or improve quality of life (QoL) of the patients, there is an urge for real-world clinical data of MM patients treated with selinexor in clinical routine. The objective of this non-interventional study is to evaluate QoL and tolerability/safety and AE management as well as effectiveness and dosing in adult patients with relapsed or refractory MM, which receive selinexor in combination with bortezomib and dexamethasone in the 2nd or later therapy line in a real-world setting.

Interventions

DRUGSelinexor

Selinexor/bortezomib/dexamethasone according to Nexpovio® SmPC

Sponsors

Menarini Stemline
CollaboratorUNKNOWN
Climedo Health GmbH
CollaboratorUNKNOWN
iOMEDICO AG
Lead SponsorINDUSTRY

Study design

Observational model
CASE_ONLY
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum

Inclusion criteria

* Relapsed or refractory multiple myeloma * Indication and decision for ≥2nd-line treatment with selinexor in combination with bortezomib and dexamethasone according to current selinexor SmPC as assessed by the treating physician * Treatment decision before inclusion into this non-interventional study * Willingness and ability to participate in the electronic patient-reported outcome (ePRO) module and answering of questionnaires * Age ≥18 years * Signed and dated informed consent form * Inclusion before start of treatment (prospective inclusion)

Exclusion criteria

* Contraindications according to selinexor SmPC for patients with MM * Participation in an interventional clinical trial

Design outcomes

Primary

MeasureTime frameDescription
Change from baseline of EORTC global health scaleBaseline, up to 40 monthsChange from baseline quality of life (QoL) over time for the global health scale of the EORTC QLQ- C30 questionnaire.

Secondary

MeasureTime frameDescription
Change from baseline of EORTC QLQ-MY20 further scalesBaseline, up to 30 days after selinexor treatmentChange from baseline in further scales of the EORTC QLQ-MY20 questionnaire
Assessment of drug tolerability and safetyBaseline, up to 40 monthsFrequency of specific (serious) adverse drug reactions ((S)ADRs) (nausea, weight loss, diarrhea, vomiting, fatigue)
Adverse events (AEs) and serious adverse events (SAEs) according to NCI CTCAEBaseline, up to 30 days after end of selinexor treatmentIncidence of (serious) AEs ((S)AEs) as characterized by type, frequency, severity and seriousness.
Adverse drug reaction (ADR) and serious adverse drug reactions (SADR)Baseline, up to 30 days after end of selinexor treatmentIncidence of (serious) adverse drug reactions ((S)ADRs) as characterized by type, frequency, severity and seriousness.
Adverse events of special interest (AESI)Baseline, up to 30 days after end of selinexor treatmentIncidence of AEs of special interest defined as cataracts (new-onset cataracts and worsening of cataracts) and Acute cerebellar syndrome.
Changes in selinexor therapyFrom date of selinexor treatment start, up to 40 monthsFrequency of treatment delays, no administrations (skips), discontinuation (withdrawn) of selinexor due to safety reasons
Effectiveness in routine treatment: Best responseBaseline, up to 40 monthsFrequencies of best response during selinexor therapy will be calculated using descriptive statistics.
Effectiveness in routine treatment: Overall response rate (ORR)Baseline, up to 40 monthsORR of patients will be calculated. ORR is defined as the proportion of patients achieving a complete response, very good partial response or partial response as best overall response. Patients without response measurement are considered non-responders.
Effectiveness in routine treatment: Disease control rate (DCR)Baseline, up to 40 monthsDCR is defined as the proportion of patients achieving complete response, very good partial response, partial response, or stable disease as best response. Patients without response measurement are considered non-responders.
Effectiveness in routine treatment: Progression-free survival (PFS)Baseline, up to 40 monthsPFS is defined as the time interval measured from the day of first selinexor administration to first progression or death, whichever comes first.
6 months PFS rateBaseline, until 6 months after start of selinexor treatmentPFS rates will be analysed 6 months after treatment start of selinexor
12 months PFS rateBaseline, until 12 months after start of selinexor treatmentPFS rates will be analysed 12 months after treatment start of selinexor
Effectiveness in routine treatment: Overall survival (OS)Baseline, up to 40 monthsOS is defined as the time interval measured from the day of first selinexor administration to time of death from any cause.
6 months OS rateBaseline, until 6 months after start of selinexor treatmentOS rates will be analysed 6 and 12 months after treatment start of selinexor
12 months OS rateBaseline, until 12 months after start of selinexor treatmentOS rates will be analysed 6 and 12 months after treatment start of selinexor
Selinexor therapy: DosingBaseline, up to end of selinexor treatmentDose intensity during treatment (mg/m2 per week) will be analysed
Selinexor therapy: FrequencyCycle 1, day 1Frequency of starting dose of selinexor (100 mg, 80 mg, 60 mg, other) will be analysed
Selinexor therapy: Dose reduction of starting doseCycle 1, day 1Reasons for reduced starting dose compared to SmPC will be analysed
Selinexor therapy: Dose changesFrom date of second selinexor application, up to 40 monthsReasons for dose reductions and dose re-escalation during treatment compared to previous dose
Previous therapiesBaselineFrequency of distinct previous therapies (systemic / radiation / transplantation)
Daratumumab-based previous therapiesBaselineFrequency of patients with daratumumab-based previous therapies
Treatment durationFrom date of selinexor treatment start, up to 40 monthsTreatment duration of selinexor therapy
Subsequent antineoplastic therapiesFrom Date of end of selinexor treatment up to 40 monthsFrequency of distinct subsequent antineoplastic therapies.
Subsequent antineoplastic transplantationsFrom Date of end of selinexor treatment up to 40 monthsFrequency of distinct subsequent antineoplastic transplantations.
Subsequent antineoplastic radiationsFrom Date of end of selinexor treatment up to 40 monthsFrequency of distinct subsequent antineoplastic radiations.
Frequency of concomitant medicationBaseline up to 30 days after end of selinexor therapyFrequency of concomitant medication administered
Anti-emetic substances for AE treatmentBaseline up to 30 days after end of selinexor treatmentUse of anti-emetic substances for AE treatment
Anti-emetic substances for prophylaxisFrom date of selinexor treatment start, up to 40 monthsUse of anti-emetic substances for prophlaxis
Anti-diarrhea substances for AE treatmentBaseline up to 30 days after end of selinexor treatmentUse of anti-diarrhea substances for AE treatment
Anti-diarrhea substances for prophylaxisFrom date of selinexor treatment start, up to 40 monthsUse of anti-diarrhea substances for prophylaxis
Anti-emetic and anti-diarrhea substances for AE treatmentFrom date of selinexor treatment start, up to date of end of selinexor treatmentUse of anti-emetic and anti-diarrhea substances for AE treatment
Anti-emetic and anti-diarrhea substances for prophylaxisFrom date of selinexor treatment start, up to date of end of selinexor treatmentUse of anti-emetic and anti-diarrhea substances for prophylaxis
Administration of Glucocorticoids and NK1 antagonist for prophylaxisFrom date of selinexor treatment start, up to 40 monthsFrequency of glucocorticoids (i.e., dexamethasone given in addition to study medication) + NK1 antagonist administration used for prophylaxis.
Administration of NK1 + 5HT3 antagonist for prophylaxisFrom date of selinexor treatment start, up to 40 monthsFrequency of NK1 + 5HT3 antagonist administration used for prophylaxis
Administration of Glucocorticoids and 5HT3 antagonist for prophylaxisFrom date of selinexor treatment start, up to 40 monthsFrequency of glucocorticoids (i.e., dexamethasone given in addition to study medication) + 5HT3 antagonist administration used for prophylaxis.
Change from baseline of EORTC QLQ-C30 further scalesBaseline, up to 40 monthsChange from baseline in further scales of the EORTC QLQ-C30 questionnaire
Therapy decisionBaselineAssessment of parameters of therapy decision making.
Therapy choiceBaselineFrequency of distinct parameters affecting therapy choice.
Assessment of myeloma comorbidity index R-MCIBaselineAssessment of R-MCI in all patients and patients with different starting doses
R-MCI risk groupsBaselineFrequency of R-MCI risk groups in all patients and according to different selinexor starting dosages (100 mg vs. 80 mg vs. 60 mg).
Administration of Glucocorticoids, NK1 and 5HT3 antagonist for prophylaxisFrom date of selinexor treatment start, up to 40 monthsFrequency of glucocorticoids (i.e., dexamethasone given in addition to study medication) + NK1 + 5HT3 antagonist administration used for prophylaxis.

Countries

Austria, Germany

Outcome results

None listed

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