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JOURNAL ONKOLOGIE – STUDIE

A Study of Combination of Selinexor, Pomalidomide, and Dexamethasone (SPd) Versus Elotuzumab, Pomalidomide, and Dexamethasone (EloPd) in Subject With Previously Treated Multiple Myeloma

Rekrutierend

NCT-Nummer:
NCT05028348

Studienbeginn:
April 2022

Letztes Update:
22.02.2023

Wirkstoff:
Selinexor, Elotuzumab, Pomalidomide, Dexamethasone Oral

Indikation (Clinical Trials):
Multiple Myeloma, Neoplasms, Plasma Cell

Geschlecht:
Alle

Altersgruppe:
Erwachsene (18+)

Phase:
Phase 3

Sponsor:
European Myeloma Network

Collaborator:
Karyopharm Therapeutics Inc

Kontakt

Studienlocations
(3 von 68)

Alle anzeigen

Studien-Informationen

Brief Summary:

This phase 3 randomized, open-label multicenter trial will compare the efficacy, safety and

the impact on health-related quality of life (HR-QoL) of SPd versus EloPd in

pomalidomide-naïve patients with MM who have received 1 to 4 prior anti-MM regimens and been

treated with an immunomodulatory imide drug (IMiD), proteasome inhibitor (PI) and an

anti-CD38 monoclonal antibody (mAb).

Ein-/Ausschlusskriterien

Inclusion Criteria:

1. Relapsed or refractory MM with measurable disease per IMWG guidelines as defined by at

least 1 of the following:

1. Serum M-protein ≥0.5 g/dL (≥5 g/L) by serum protein electrophoresis (SPEP) or,

for immunoglobulin (Ig) A or D myeloma, by quantitative serum IgA or IgD levels ≥

0.5 g/dL.

2. Urinary M-protein excretion ≥200 mg/24 hours

3. Serum free light chain (FLC) ≥100 mg/L, provided that the FLC ratio is abnormal

(normal FLC ratio: 0.26 to 1.65)

2. Received at least 1 and no more than 4 prior anti-MM lines of therapy. Induction

therapy followed by stem cell transplant and consolidation/maintenance therapy will be

considered as 1 line of therapy.

3. Prior therapy that includes ≥ consecutive cycles of lenalidomide and a proteasome

inhibitor given alone or in combination

4. Prior therapy with an anti-CD3 mAb as part of their immedicate last treatment prior to

study entry (Before protocol version2.0, patient with any prior therapy with an

anti-CD3 mAb were eligible for the study).

5. Eastern Cooperative Oncology Group (ECOG) performance status of ≤2.

6. Resolution of any clinically significant non-hematological toxicities (if any) from

previous treatments to Grade ≤1 by Cycle 1 Day 1 (C1D1). Patients with Grade 2

non-hematological toxicities may be included.

7. Adequate hepatic function within 28 days prior to C1D1:

1. Total bilirubin <2 × upper limit of normal (ULN) (except patients with Gilbert's

syndrome who must have a total bilirubin of <3 × ULN)

2. Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) <2.5 × ULN

8. Adequate renal function within 28 days prior to C1D1 (estimated creatinine clearance

[CrCl] of ≥15 mL/min (not requiring dialysis), calculated using the formula of

Cockcroft and Gault or measured by 24-hour urine collection).

9. Adequate hematopoietic function within 7 days prior to C1D1 defined as absolute

neutrophil count ≥1.5 x 109/L , hemoglobin ≥8.5 g/dL, and platelet count ≥100 x 109/L

(patients for whom <50% of bone marrow nucleated cells are plasma cells) or ≥75 x

109/L (patients for whom ≥50% of bone marrow nucleated cells are plasma cells).

1. Patients receiving hematopoietic growth factor support, including erythropoietin,

darbepoetin, granulocyte-colony stimulating factor (G-CSF), granulocyte

macrophage-colony stimulating factor (GM-CSF), and platelet stimulators (e.g.,

eltrombopag, romiplostim, or interleukin-11) must have a 2-week interval between

growth factor support and the Screening assessments, but they may receive growth

factor support during the study.

2. Patients must have:

- At least a 2-week interval from the last red blood cell (RBC) transfusion

prior to the Screening hemoglobin assessment, and

- At least a 1-week interval from the last platelet transfusion prior to the

Screening platelet assessment.

However, patients may receive RBC and/or platelet transfusions as clinically indicated

per institutional guidelines during the study.

10. Patients with active hepatitis B virus (HBV) are eligible if antiviral therapy for

hepatitis B has been given for >8 weeks and viral load is <100 IU/mL. Patients with

evidence of non-active HBV should be discussed with the Medical Monitor and should be

monitored or receive prophylaxis at the discretion of the Investigator and study site

institutional guidelines

11. Patients with a history of hepatitis C virus (HCV) are eligible if they have received

adequate curative anti-HCV treatment and HCV viral load is below the limit of

quantification.

12. Patients with a history of human immunodeficiency virus (HIV) are eligible if they

have CD4+ T cell counts ≥350 cells/µL, negative viral load, and no history of acquired

immunodeficiency syndrome (AIDS)-defining opportunistic infections in the last year

and should be on established antiretroviral therapy (ART) for at least 4 weeks.

13. Female patients of childbearing potential must have a negative serum pregnancy test

within 10 to 14 days and a second test within 24 hours prior to the first dose of

study treatment. Female patients of childbearing potential and fertile male patients

who are sexually active must use highly effective methods of contraception throughout

the study and for 3 months following the last dose of study treatment.

14. Age ≥18 years at the time of signing informed consent.

15. Written informed consent signed in accordance with federal, local, and institutional

guidelines.

16. Patients must be able and willing to take enteric-coated aspirin according to clinical

practice, or if history of prior thrombotic disease, must be fully anticoagulated with

warfarin (international normalized ratio [INR] 2-3) or be treated with full-dose, low

molecular weight heparin, as if to treat deep venous thrombosis (DVT)/pulmonary

embolism (PE) at the Investigator's discretion. For patient on warfarin, INR should be

repeated as clinically indicated. Use of alternative anticoagulants, such as direct

oral anticoagulants, may be considered per Investigator discretion.

Exclusion Criteria:

1. Smoldering MM.

2. Plasma cell leukemia.

3. Documented active systemic amyloid light chain amyloidosis.

4. Any history of central nervous system MM.

5. Prior treatment with:

1. A selective inhibitor of nuclear export (SINE) compound, including selinexor

2. Pomalidomide and/or elotuzumab.

6. Any concurrent medical condition or disease that is likely to interfere with study

procedures.

7. Uncontrolled active infection requiring parenteral antibiotics, antivirals, or

antifungals within 1 week prior to C1D1. Patients on prophylactic antibiotics or with

a controlled infection within 1 week prior to C1D1 are acceptable.

8. Known intolerance, hypersensitivity, or contraindication to any of the study

treatments.

9. Radiation, chemotherapy, or immunotherapy or any other anticancer therapy including

investigational therapies and high dose dexamethasone (i.e., 40 mg daily for 4 days

per week) ≤2 weeks prior to C1D1. Patients on long-term glucocorticoids during

Screening do not require a washout period but must be able to tolerate the specified

dexamethasone dose in this study.

10. Prior autologous stem cell transplantation <60 days or allogeneic stem cell

transplantation <4 months prior to C1D1.

11. Major surgery within 4 weeks prior to C1D1.

12. Active graft versus host disease after allogeneic stem cell transplantation.

13. Pregnant or breastfeeding females.

14. In the opinion of the Investigator, patients who are below their ideal body weight and

would be unduly impacted by changes in their weight.

15. Clinically significant cardiac disease, including:

1. Myocardial infarction within 6 months before C1D1, or unstable or uncontrolled

disease/condition related to or affecting cardiac function (e.g., unstable

angina, congestive heart failure, New York Heart Association Class III-IV).

2. Uncontrolled cardiac arrhythmia (CTCAE v. 5.0 Grade 2 or higher) or clinically

significant electrocardiogram (ECG) abnormalities.

3. Screening 12-lead ECG showing a baseline QT interval as corrected by Fridericia's

formula (QTcF) >470 msec.

16. Any active gastrointestinal dysfunction interfering with the patient's ability to

swallow tablets, or any active gastrointestinal dysfunction that could interfere with

absorption of study treatment.

17. Any active, serious psychiatric, medical, or other conditions/situations that, in the

opinion of the Investigator, could interfere with treatment, compliance, or the

ability to give informed consent.

18. Contraindication to any of the required concomitant drugs or supportive treatments.

19. Patients unwilling or unable to comply with the protocol.

Studien-Rationale

Primary outcome:

1. Progression-free survival (PFS) (Time Frame - from randomization to the date of disease progression or death (approximately up to 5 years)):
from date of randomization until the date of first confirmed progressive disease (PD), per IMWG response criteria, or death due to any cause, whichever occurs first.



Secondary outcome:

1. Overall Response Rate (ORR) (Time Frame - from screening until end of treatment/progressive disease (approximately up to 2 years)):
defined as any response ≥PR (i.e., PR [partial response], VGPR [very good partial response], CR ([complete response], or sCR [stringent complete response])

2. Overall survival (OS) (Time Frame - From randomization until death from any cause (up to 3 years after end of treatment)):
Overall Survival

3. Duration of response (Time Frame - screening, Day 1 of each treatment cycle (each cycle is 28 days), at end of treatment, and every 3 months up to 3 years):
Duration of response (PR or better), duration of CR, duration of sCR, and duration of minimal residual disease (MRD) -negative status, are calculated from the date of the initial documentation of a response (PR or better), or CR or better, or sCR, or MRD-negative status to the date of the first documented evidence of disease progression, as defined in the IMWG criteria, whichever occurs first.

4. Time to response (Time Frame - screening, Day 1 of each treatment cycle (each cycle is 28 days), at end of treatment, and every 3 months up to 3 years):
Time to response (PR or better), time to CR/sCR are defined as the time from randomization to date of initial response (or initial CR/sCR)

5. Progression-free survival on the next line of therapy (PFS2) (Time Frame - the time from randomization to progression on the next line of treatment or death, whichever comes first., assessed up to approx. 5 years):
Progression-free survival on the next line of therapy (PFS2) is defined as the time from randomization to progression on the next line of treatment or death, whichever comes first.

6. Change in European Organization for Research and Treatment of Cancer Quality of Life Questionnaire 30-item Core module (EORTC QLQ-C30) score and the difference between-treatment arms (Time Frame - screening, Day 1 of each treatment cycle (each cycle is 28 days), at end of treatment (up to 2 years)):
The EORTC QLQ-C30 is a 30-item questionnaire containing both single and multi-item measures. These include five functional scales (Physical, Role, Cognitive, Emotional, and Social Functioning), three symptom scales (Fatigue, Pain, and Nausea/Vomiting), a Global Health Status/ Quality-of-Life (QoL) scale, and six single items (Constipation, Diarrhea, Insomnia, Dyspnea, Appetite Loss, and Financial Difficulties). The scores ranges from 0-100, a high score for functional scales and for Global Health Status/QoL represent better functioning ability or Health-Related Quality-of-Life (HRQoL), whereas a high score for symptom scales and single items represents significant symptomatology.

7. Change in EORTC QLQ- 20-item Multiple Myeloma module (MY-20) score and the difference between-treatment arms (Time Frame - screening, Day 1 of each treatment cycle (each cycle is 28 days), at end of treatment (approximately up to 2 years)):
The EORTC QLQ-MY20 is a supplement to the QLQ-C30 instrument used in subjects with MY. The module comprises 20 questions that address four myeloma-specific HRQoL domains: Disease Symptoms, Side Effects of Treatment, Future Perspective, and Body Image. A high score for Disease Symptoms and Side Effects of Treatment represents a high level of symptomatology or problems, whereas a high score for Future Perspective and Body Image represents better outcomes.

8. EQ-5D-5L health utility values and the difference between-treatment arms (Time Frame - screening, Day 1 of each treatment cycle (each cycle is 28 days), at end of treatment (approximately up to 2 years)):
The EQ-5D-5L is a 5 item questionnaire that assesses 5 domains including mobility, self care, usual activities, pain/discomfort, and anxiety/depression plus a visual analog scale rating "health today"

9. safety and tolerability of SPd versus EloPd in patients with RRMM (Time Frame - continuously from screening untill 30 days after last study treatment. (approximately up to 2 years)):
Safety and tolerability of study treatment will be evaluated based on occurrence, nature and severity of adverse events as categorized by the Common Terminology Criteria of Adverse Events (CTCAE) v5.0

Studien-Arme

  • Experimental: Selinexor, pomalidomide and dexamethasone (SPd)
    Selinexor will be given as an oral dose: 40 mg (2 20 mg tablets) once weekly (QW) on Days 1, 8, 15, and 22 of each 28-day cycle. Pomalidomide will be given as an oral 4 mg dose QD on Days 1 to 21 of each 28-day cycle. Patients ≤75 years: o Dexamethasone will be given as an oral 40 mg dose QW on Days 1, 8, 15, and 22 of each 28-day cycle. Dose may be divided over 2 days at the Investigator's discretion. Patients > 75 years: Dexamethasone will be given as an oral 20 mg dose QW on Days 1, 8, 15, and 22 of each 28-day cycle. Dose may be divided over 2 days at the Investigator's discretion.
  • Active Comparator: Elotuzumab, Pomalidomide and Dexamethasone (EloPd)
    Elotuzumab will be given IV 10 mg/kg on Days 1, 8, 15, and 22 of cycle 1 and 2 then 20 mg/kg on Day 1 of cycles ≥3 of each 28-day cycle. Pomalidomide will be given as an oral 4 mg dose once a day (QD) on Days 1 to 21 of each 28-day cycle. Patients ≤75 years: Dexamethasone 28 mg PO + 8 mg IV on days of elotuzumab dosing Dexamethasone 40 mg PO on non-elotuzumab days (e.g., days 8, 15, and 22 of cycle 3 and beyond). Dose may be divided over 2 days at the Investigator's discretion. Patients >75 years: Dexamethasone 8 mg PO + 8 mg IV on days of elotuzumab dosing Dexamethasone 20 mg PO on non-elotuzumab dosing weeks (e.g., days 8, 15, and 22 of cycle 3 and beyond). Dose may be divided over 2 days at the Investigator's discretion.

Geprüfte Regime

  • Selinexor (KPT-330):
    Selinexor will be given as an oral dose 40 mg (2 20 mg tablets) QW on Days 1, 8, 15, and 22 of each 28-day cycle.
  • Elotuzumab:
    Elotuzumab will be given IV 10 mg/kg on Days 1, 8, 15, and 22 of cycle 1 and 2 then 20 mg/kg on Day 1 of cycles ≥3 of each 28-day cycle.
  • Pomalidomide:
    Pomalidomide will be given as an oral 4 mg dose QD on Days 1 to 21 of each 28-day cycle.
  • Dexamethasone Oral:
    Dexamethasone will be given as an oral 40 mg dose QW on Days 1, 8, 15, and 22 of each 28-day cycle. Preferred dosing of dexamethasone is 40 mg QW for patients who are ≤75 years of age (20 mg QW for >75-year-old patients at the Investigator's discretion) before QW dosing of selinexor, however, it may be divided over 2 days at the Investigator's discretion.

Quelle: ClinicalTrials.gov


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