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Randomized phase II study of two induction treatments of melphalan, prednisolone, plus bortezomib, JCOG-MPB versus modified PETHEMA-MPB, in elderly patients or non-elderly patients refusing transplant with untreated symptomatic myeloma(JCOG1105, IMPROVE-MPB study)

Randomized phase II study of two induction treatments of melphalan, prednisolone, plus bortezomib, JCOG-MPB versus modified PETHEMA-MPB, in elderly patients or non-elderly patients refusing transplant with untreated symptomatic myeloma(JCOG1105, IMPROVE-MPB study) - Randomized phase II study of two induction treatments, JCOG-MPB versus modified PETHEMA-MPB, in elderly patients or non-elderly patients refusing transplant with untreated symptomatic myeloma(JCOG1105, IMPROVE-MPB study)

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000011180
Enrollment
90
Registered
2013-07-12
Start date
2013-07-12
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Elderly patients or non-elderly patients refusing transplant with untreated symptomatic myeloma

Interventions

Arm A: modified PETHEMA-MPB therapy consists of nine cycles: one cycle of subcutaneous or intravenous bortezomib given twice per week for 6 weeks (1.3 mg/m2 on days 1, 4, 8, 11, 22, 25, 29, and 32), p

Sponsors

Japan Clinical Oncology Group (JCOG)
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Diagnosed as having symptomatic multiple myeloma 2) Aged 65 to 79 years old, or 20 to 64 years old who refused high-dose therapy followed by autologous stem-cell transplantation 3) Untreated for multiple myeloma 4) Having measurable paraprotein defined as serum monoclonal immunoglobulin concentration of at least 1.0 g/dL of IgG, or at least 0.5 g/dL of absolute serum concentration of IgA/IgD, or urinary excretion of at least 0.2 g of paraprotein per 24 hours regardless of the type of myeloma 5) Not having plasma cell leukemia 6) Having neither of cardiac amyloidosis nor gastrointestinal amyloidosis 7) Performance status: 0-2, or 3 due to osteolytic lesions alone 8) Absolute neutrophil count: no less than 1,000/mm3, platelet count: no less than 75,000/mm3, hemoglobin concentration: at least 8.0 g/dL, AST/ALT: no more than 100IU/L, total bilirubin: 1.8 mg/dL or below, serum creatinene: 2.5 mg/dL or below, PaO2 (room air) at least 70 torr, ECG: neither ischemic change nor arrhythmia requiring medical intervention, cardiac ejection fraction: at least 50% 9) Peripheral neuropathy of grade 1 or less and no neuralgia 10) Written informed consent by the patient including contraception

Exclusion criteria

Exclusion criteria: 1) Synchronous or metachronous malignancy 2) Active infection 3) Pregnant or nursing women 4) Psychiatric disease 5) Continuous systemic treatment with steroids for non-malignant disorders 6) Insulin-dependent or uncontrollable diabetes mellitus 7) Uncontrollable hypertension 8) HBs-Ag positive or HCV-Ab positive 9) HIV-Ab positive 10) Interstitial pneoumonia, pulmonary fibrosis, severe pulmonary emphysema, or severe pleural effusion on chest CT 11) Uncontrollable Glaucoma 12) Allergic history to borate or mannitol

Design outcomes

Primary

MeasureTime frame
Complete response rate

Secondary

MeasureTime frame
proportion of treatment completion, overall response rate, stringent complete response rate, overall survival, progression-free survival, time to next treatment, adverse events, serious adverse events, efficacy according to chromosomal translocation-associated protooncogene expression

Countries

Japan

Contacts

Public ContactDai Maruyama

JCOG1105 Coordinating Office Department of Hematology, National Cancer Center Hospital

JCOG_sir@ml.jcog.jp03-3542-2511

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026