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Allogeneic Stem Cell Transplantation vs. Conventional Therapy as Salvage Therapy for Relapsed / Progressive Patients With Multiple Myeloma After First-line Therapy

Allogeneic Stem Cell Transplantation vs. Conventional Therapy as Salvage Therapy for Relapsed / Progressive Patients With Multiple Myeloma After First-line Therapy

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05675319
Acronym
AlloRelapseMM
Enrollment
28
Registered
2023-01-09
Start date
2023-03-03
Completion date
2025-03-21
Last updated
2026-01-05

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

Conditions

Multiple Myeloma

Keywords

first relapse/progression after first-line therapy, allogeneic stem cell transplantation, salvage therapy

Brief summary

Allogeneic stem cell (allo SCT) transplantation for multiple myeloma is a potential curative treatment, but is associated with morbidity and treatment related mortality. Approved drug combinations or another autologous stem cell transplantation (auto-SCT) can be used for relapsed patients resulting in a median progression free survival up to 2-3 years. In the current trial after first-line treatment relapsed or progressed myeloma patients with an HLA compatible donor will be randomized after 3 cycles of salvage therapy to allogeneic stem cell transplantation or to continuous conventional salvage therapy.

Detailed description

The primary objective of the present clinical study aims to demonstrate the superiority of allogeneic stem cell transplantation (allo SCT) compared to conventional therapy for the difference in overall survival (OS) at 5 years in patients with multiple myeloma who have relapsed or progressed after first-line autologous hematopoietic stem cell therapy. The secondary objectives are to show an improvement of progression free survival and relapse free survival after allo SCT compared to conventional therapy. In addition, quality of life, toxicities, recurrence rates, non-relapse mortality (NRM), remission rates including minimal residual disease (MRD) and incidence of severe or life-threatening infection between the two arms are compared. Acute and chronic graft-versus-host disease (GvHD) after allo SCT are evaluated.

Interventions

DRUGAllogeneic Stem Cells

Allogeneic Stem Cell Transplantation

DRUGcarfilzomib/lenalidomide/dexamethasone (KRD)

triple regimen for first relapse should be applied according to latest Summary of Product Characteristics (SmPC) version

DRUGelotuzumab/lenalidomide/dexamethasone (ERD)

triple regimen for first relapse should be applied according to latest SmPC version

DRUGdaratumumab/bortezomib/dexamethasone (DVD)

triple regimen for first relapse should be applied according to latest SmPC version

DRUGdaratumumab/lenalidomide/dexamethasone (DRD)

triple regimen for first relapse should be applied according to latest SmPC version

DRUGixazomib/lenalidomide/dexamethasone (IRD)

triple regimen for first relapse should be applied according to latest SmPC version

DRUGpomalidomide/bortezomib/dexamethasone (PVD)

triple regimen for first relapse should be applied according to latest SmPC version

DRUGcarfilzomib/daratumumab/dexamethasone (KDD)

triple regimen for first relapse should be applied according to latest SmPC version

Autologous Stem Cell Transplantation

DRUGdaratumumab/pomalidomide/dexamethasone (DPD)

triple regimen for first relapse should be applied according to latest SmPC version

DRUGisatuximab/carfilzomib/dexamethasone (Isa-KD)

triple regimen for first relapse should be applied according to latest SmPC version

DRUGselinexor/bortezomib/dexamethasone (SVD)

triple regimen for first relapse should be applied according to latest SmPC version

Sponsors

Gemeinsamer Bundesausschuss (G-BA)
CollaboratorUNKNOWN
Staburo GmbH
CollaboratorINDUSTRY
Universitätsklinikum Hamburg-Eppendorf
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

Patients eligible for study inclusion must meet criteria 1- 7 at registration and all of the following criteria before randomization: 1. Multiple Myeloma 2. Age 18 - 65 years 3. A signed informed consent form must be obtained before participation in the study 4. Age 66 - 70 years, if comorbidity index according to Sorror score = 0 and ECOG ≤ 1 5. 1st relapse/ progression according to IMWG criteria after first-line therapy (consisting of induction therapy followed by autologous transplantation once or twice and maintenance therapy), Additionally: meeting the need for treatment based on the SLiM-CRAB-criteria 6. Negative pregnancy test in female patients 7. Maximum of 1 cycle salvage therapy prior to study inclusion 8. Availability of a fully compatible stem cell donor (HLA-ident. Sibling or 10/10 MUD or 9/10 MMUD if mismatch affects DQB) after 3 cycles salvage therapy 9. CR/PR or SD according to IMWG-criteria after 3 cycles salvage therapy within the study

Exclusion criteria

Patients are excluded from the study if any one of criteria 1-6 are met at registration and if criterion 7 is met before randomization: 1. Non-sufficient organ function defined as: Bilirubin (in the absence of Meulengracht's disease), SGPT or SGOT ≥3 higher than normal values Cardiac ejection fraction ≤ 50% GFR \< 30 ml/min DLCO \< 35 % or continuous oxygen dependency 2. Active hepatitis B or C infection or uncontrolled HIV infection 3. Other, active malignant disease 4. Prior treatment with allogeneic stem cells 5. Participation in a clinical trial or taking an IMP within 30 days or five times the half-life of the IMP, whichever is longer, prior to registration 6. Positive serum pregnancy test at screening and before first treatment or breastfeeding 7. PD under salvage therapy

Design outcomes

Primary

MeasureTime frameDescription
Overall survival at five years after randomizationat 5 years after randomizationThe present clinical study aims to demonstrate the superiority of allogeneic stem cell transplantation compared to conventional therapy for the difference in overall survival at 5 years in patients with multiple myeloma who have relapsed or progressed after first-line autologous hematopoietic stem cell therapy.

Secondary

MeasureTime frameDescription
Change from baseline in total EORTC score at 5 years after randomizationat visit Screening, at the end of cycle 3 (84 days, each cycle is 28 days) of salvage therapy, 6 months, 1, 2, 3, 4 and 5 years after randomizationThe aim of the quality of life questionnaires (QLQ) is to provide a comparison between the two treatment arms. Quality of life according EORTC (European Organisation for the Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30) & Quality of Life Questionnaire - Multiple Myeloma Module (EORTC QLQ-MY20)) will be assessed in both groups. A high score for a functional scale represents a high/healthy level of functioning whereas a high score for a symptom scale or item represents a high level of symptomatology/ sickness. Patients will be observed from baseline until database lock for final analysis and adjusted mean calculated at 5 years after randomization.
Cumulative incidence of acute GvHD after allogeneic stem cell transplantation at 1 year after randomizationat 30 days, 100 days, 6 months and 1 year after randomization, an average of 1 yearPatients will be observed from randomization until database lock for final analysis and cumulative incidence of any acute Graft-versus-Host Disease (GvHD, according to Przepiorka et al.) at 1 year after randomization is reported
Cumulative incidence of acute GvHD after allogeneic stem cell transplantation at 3 years after randomizationat 30 days, 100 days, 6 months, 1 year, 18 months and 2 years, 30 months and 3 years after randomization, an average of 3 yearsPatients will be observed from randomization until database lock for final analysis and cumulative incidence of any acute GvHD (according to Przepiorka et al.) at 3 years after randomization is reported
Cumulative incidence of acute GvHD after allogeneic stem cell transplantation at 5 years after randomizationat 30 days, 100 days, 6 months, 1 year, 18 months and 2 years, 30 months, 3, 4 and 5 years after randomization, an average of 5 yearsPatients will be observed from randomization until database lock for final analysis and cumulative incidence of any acute GvHD (according to Przepiorka et al.) at 5 years after randomization is repoted.
Cumulative incidence of chronic GvHD after allogeneic stem cell transplantation at 1 year after randomizationat 30 days, 100 days, 6 months and 1 year after randomization, an average of 1 yearPatients will be observed from randomization until database lock for final analysis and cumulative incidence of any chronic GvHD (according to Jagasia et al.) at 1 year after randomization is reported.
Cumulative incidence of chronic GvHD after allogeneic stem cell transplantation at 3 years after randomizationat 30 days, 100 days, 6 months, 1 year, 18 months and 2 years, 30 months and 3 years after randomization, an average of 3 yearsPatients will be observed from randomization until database lock for final analysis and cumulative incidence of any chronic GvHD (according to Jagasia et al.) at 3 years after randomization is reported.
Cumulative incidence of chronic GvHD after allogeneic stem cell transplantation at 5 years after randomizationat 30 days, 100 days, 6 months, 1 year, 18 months and 2 years, 30 months, 3, 4 and 5 years after randomization, an average of 5 yearsPatients will be observed from randomization until database lock for final analysis and cumulative incidence of any chronic GvHD (according to Jagasia et al.) at 5 years after randomization is reported.
Time to first occurrence of infection reported as cumulative incidence of infection with CTCAE grade 3 - 5 at 1 year after randomizationfrom randomization to 1 year after randomization, an average of 1 yearThe severity and/or intensity of an adverse event will be graded based upon the patient's symptoms according to the current active version of National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE). Patients will be observed from randomization until database lock for final analysis and cumulative incidence of any infectious complication with CTCAE grade 3 - 5 at 1 year after randomization is reported.
Time to first occurrence of infection reported as cumulative incidence of infection with CTCAE grade 3 - 5 at 3 years after randomizationfrom randomization to 3 years after randomization, an average of 3 yearsThe severity and/or intensity of an adverse event will be graded based upon the patient's symptoms according to the current active version of National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE). Patients will be observed from randomization until database lock for final analysis and cumulative incidence of any infectious complication with CTCAE grade 3 - 5 at 3 years after randomization is reported.
Time to first occurrence of infection reported as cumulative incidence of infection with CTCAE grade 3 - 5 at 5 years after randomizationfrom randomization to 5 years after randomization, an average of 5 yearsThe severity and/or intensity of an adverse event will be graded based upon the patient's symptoms according to the current active version of National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE). Patients will be observed from randomization until database lock for final analysis and cumulative incidence of any infectious complication with CTCAE grade 3 - 5 at 5 years after randomization is reported.
Event-free survival at 1 year after randomizationfrom randomization to 1 year after randomizationA secondary objective is to show an improvement of progress free survival and relapse free survival after allogeneic stem cell transplantation compared to conventional therapy. Events are defined as: * Progression or * Relapse or * Engraftment Failure or * Death of any cause
Event-free survival at 3 years after randomizationfrom randomization to 3 years after randomizationA further secondary objective is to show an improvement of progress free survival and relapse free survival after allogeneic stem cell transplantation compared to conventional therapy. Events are defined as: * Progression or * Relapse or * Engraftment Failure or * Death of any cause
Event-free survival at 5 years after randomizationfrom randomization to 5 years after randomizationA secondary objective is to show an improvement of progress free survival and relapse free survival after allogeneic stem cell transplantation compared to conventional therapy. Events are defined as: * Progression or * Relapse or * Engraftment Failure or * Death of any cause
Change from baseline in total EORTC score at 1 year after randomizationat visit Screening, at the end of cycle 3 (84 days, each cycle is 28 days) of salvage therapy, 6 months and 12 months after randomizationThe aim of the quality of life questionnaires (QLQ) is to provide a comparison between the two treatment arms. Quality of life according EORTC (European Organisation for the Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30) & Quality of Life Questionnaire - Multiple Myeloma Module (EORTC QLQ-MY20)) will be assessed in both groups.. A high score for a functional scale represents a high/healthy level of functioning whereas a high score for a symptom scale or item represents a high level of symptomatology/ sickness. Patients will be observed from baseline until database lock for final analysis and adjusted mean calculated at 1 year after randomization.
Change from baseline in total EORTC score at 3 years after randomizationat visit Screening, at the end of cycle 3 (84 days, each cycle is 28 days) of salvage therapy, 6 months, 1 year, 2 years and 3 years after randomizationThe aim of the quality of life questionnaires (QLQ) is to provide a comparison between the two treatment arms. Quality of life according EORTC (European Organisation for the Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30) & Quality of Life Questionnaire - Multiple Myeloma Module (EORTC QLQ-MY20)) will be assessed in both groups. A high score for a functional scale represents a high/healthy level of functioning whereas a high score for a symptom scale or item represents a high level of symptomatology/ sickness. Patients will be observed from baseline until database lock for final analysis and adjusted mean calculated at 3 years after randomization.
Time to first occurrence of remission after randomizationat 30 days, 100 days, 6 months, 1 and 2 years after randomizationPatients will be followed from randomization until database lock for final analysis and cumulative incidence of first remission (partial or complete), at 2 years after randomization, is reported.
Non-relapse mortality (NRM) at 1 year after randomizationfrom randomization to 1 year after randomization, an average of 1 yearPatients will be observed from randomization until database lock for final analysis and cumulative incidence of death before any relapse at 1 year after randomization was reported.
Non-relapse mortality (NRM) at 3 years after randomizationfrom randomization to 3 years after randomization, an average of 3 yearsPatients will be observed from randomization until database lock for final analysis and cumulative incidence of death before any relapse at 3 years after randomization was reported.
Non-relapse mortality (NRM) at 5 years after randomizationfrom randomization to 5 years after randomization, an average of 5 yearsPatients will be observed from randomization until database lock for final analysis and cumulative incidence of death before any relapse at 5 years after randomization was reported.

Other

MeasureTime frameDescription
Change from baseline in total EORTC score (Summary Score) at 3 and 5 years after randomizationat visit Screening,at the end of cycle 3 (84 days, each cycle is 28 days) of salvage therapy, 6 months, 1, 2, 3, 4 and 5 years after randomization, an average at 3 and 5 years after randomizationThe aim of the quality of life questionnaires (QLQ) is to provide a comparison between the two treatment arms. Quality of life according EORTC (European Organisation for the Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30) & Quality of Life Questionnaire - Multiple Myeloma Module (EORTC QLQ-MY20)) will be assessed in both groups. A high score for a functional scale represents a high/ healthy level of functioning whereas a high score for a symptom scale or item represents a high level of symptomatology/ sickness. Patients will be observed from baseline until database lock for interim analysis and adjusted mean is calculated at 3 and 5 years after randomization.
Non-relapse mortality at 1, 3 and 5 years after randomizationfrom randomization to 1, 3 and 5 years after randomization, an average of 1, 3 and 5 yearsPatients will be observed from randomization until database lock for interim analysis and cumulative incidence of death before any relapse at 1, 3 and 5 years after randomization is reported
Cumulative incidence of acute GvHD after allogeneic stem cell transplantation at 1, 3 and 5 years after randomizationat 30 days, 100 days, 6 months, 1 year, 18 months and 2 years, 30 months, 3, 4 and 5 years after randomization, an average of 1, 3 and 5 yearsPatients will be observed from randomization until database lock for interim analysis and cumulative incidence of any acute GvHD (according to Przepiorka et al.) at 1, 3 and 5 years after randomization is reported
Cumulative incidence of chronic GvHD after allogeneic stem cell transplantation at 1, 3 and 5 years after randomizationat 30 days, 100 days, 6 months, 1 year, 18 months and 2 years, 30 months, 3, 4 and 5 years after randomization, an average of 1, 3 and 5 yearsPatients will be observed from randomization until database lock for interim analysis and cumulative incidence of any chronic GvHD (according to Jagasia et al.) at 1, 3 and 5 years after randomization is reported
Time to first occurrence of progressionfrom randomization to 1, 3, and 5 years after randomizationPatients will be observed from randomization until database lock for interim analysis and rates at 3 and 5 years after randomization are calculated; and patients will be observed from randomization until database lock for final analysis and rates at 1, 3, and 5 years after randomization are calculated
Time to first recurrence of relapseat 1, 3, and 5 years after randomizationPatients will be followed from randomization to database lock for interim analysis and rates at 3 and 5 years after randomization are calculated; and patients will be followed from randomization to database lock for final analysis and rates at 1, 3, and 5 years after randomization are calculated.
Time to first occurrence of graft failure after stem cell transplatationat day 30 after after randomizationPatients are followed from randomization until database lock for interim analysis and rates at 3 and 5 years post-randomization are calculated; and patients are followed from randomization until database lock for final analysis and rates at 1, 3, and 5 years post-randomization are calculated. A graft failure is defined as no stable neutrophil count \> 0.5 x 10\^9/l at day 28 post-SCT.
Event-free survival at 3 and 5 years after randomizationfrom randomization to 3 and 5 years after randomizationPatients will be observed from randomization until database lock for interim analysis and the event-free survival (EFS) rate is calculated at 3 and 5 years after randomization. Events are defined as: * Progression or * Relapse or * Engraftment Failure or * Death of any cause
Time to first occurrence of Minimal Residual Disease (MRD)at 30 days, 100 days, 6 months, 1 and 2 years after randomization, rate of occurence at 6 months, 1 and 2 years after randomizationPatient observed from randomization until database lock for interim analysis and until database lock for final and rate of occurrence calculated at 6 months, 1 year and 2 years after randomization

Countries

Germany

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 6, 2026