E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Rare renal diseases linked to monoclonal gammopathy |
|
E.1.1.1 | Medical condition in easily understood language |
Rare renal diseases linked to monoclonal gammopathy |
|
E.1.1.2 | Therapeutic area | Diseases [C] - Blood and lymphatic diseases [C15] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | SOC |
E.1.2 | Classification code | 10038359 |
E.1.2 | Term | Renal and urinary disorders |
E.1.2 | System Organ Class | 10038359 - Renal and urinary disorders |
|
E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
Rate of complete renal remission (proteinuria <500 mg/d and <15% decline in baseline eGFR) or partial renal remission (>50% reduction in 24-h proteinuria and < 30% decline in eGFR) and proteinuria and eGFR after 12 cycles of daratumumab at EOT. If hematological treatment is shorter, renal endpoints after the last cycle at EOT. |
|
E.2.2 | Secondary objectives of the trial |
Rate of complete renal remission (proteinuria <500 mg/d and <15% decline in baseline eGFR) or partial renal remission (>50% reduction in 24-h proteinuria and < 30% decline in eGFR) and proteinuria and eGFR after 6 cycles of daratumumab. Rate of negativity of bone marrow minimal residual disease (MRD) after 6 and 12 cycles of daratumumab. If treatment duration is shorter, MRD evaluation after last cycle at EOT. Changes in quality of life according to EORTC QLQ-C30 (performed at baseline before the start of the 1st cycle and at EOT).
Number of patients with complement dysregulation-mediated renal damage caused by paraprotein.
Number of patients in end-stage renal disease or with eGFR decline > 50 % from baseline to EOT.
|
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
• Males or females ≥ 18 years of age • Subject has provided informed consent prior to initiation of the study or subject’s legally acceptable representative has provided informed consent prior to the study when the subject has any kind of condition that, in the opinion of the investigator, may compromise the ability of the subject to give written informed consent. • Renal biopsy confirmed MGRS-disease. o Renal biopsy must not be older than 3 months before informed consent o Renal transplant patients are allowed • Amount of proteinuria ≥ 500 mg/24 h OR eGFR ≥ 20 ml/min prior to the study • Previous anticlonal treatment is allowed if deemed ineffective (no formal time required)
|
|
E.4 | Principal exclusion criteria |
• Myeloma or systemic AL amyloidosis (smoldering myeloma sized plasma cell clone is allowed when in association with a documented MGRS condition and AHL amyloidosis and AH amyloidosis are included), • Cancer that requires treatment, • MGRS related to B-cell malignant disorders, • Known HIV infection, active hepatitis C infection (subjects with hepatitis C that achieve a sustained virologic response after antiviral therapy are allowed), or hepatitis B infection (subjects with hepatitis B surface antigen or core antibody that achieve sustained virologic response (PCR negativity in HBVNh) with antiviral therapy are permitted with a requirement for regular monitoring for reactivation for the duration of treatment on the study), • Pregnancy or breastfeeding, • No cyclophosphamide within 6 months of enrollment, or oral high-dose prednisone or equivalent within 6 weeks of enrollment; • prednisone or its equivalent at a dosage of ≤10 mg daily for a condition unrelated to MGRS (e.g. asthma or gout) allowed. • mycophenolate mofetil (MMF), calcineurin inhibitors (CNI) or azathioprine treated patients are eligible if proteinuria not improving or if kidney function declining despite treatment with these medications. Once therapy with daratumumab started, these medications need to be discontinued unless they are used as immunosuppressive medication due to renal transplantation. • In patients who previously received rituximab, reconstitution of B cells (CD19 normalized, Ly-B-CD19 lab.code 8329) required, • Inability to use daratumumab and to comply with the study protocol as assessed by treating nephrologist and/or hematologist (e.g. severe psychiatric illness, severe lung disease, known allergy to daratumumab)
|
|
E.5 End points |
E.5.1 | Primary end point(s) |
Renal (changes in eGFR and amount of proteinuria) and hematological (sFLCs and MRD) endpoints |
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
|
E.5.2 | Secondary end point(s) |
Rate of complete renal remission (proteinuria <500 mg/d and <15% decline in baseline eGFR) or partial renal remission (>50% reduction in 24-h proteinuria and < 30% decline in eGFR) and proteinuria and eGFR after 6 cycles of daratumumab. Rate of negativity of bone marrow minimal residual disease (MRD) after 6 and 12 cycles of daratumumab. If treatment duration is shorter, MRD evaluation after last cycle at EOT. Changes in quality of life according to EORTC QLQ-C30 (performed at baseline before the start of the 1st cycle and at EOT).
Number of patients with complement dysregulation-mediated renal damage caused by paraprotein.
Number of patients in end-stage renal disease or with eGFR decline > 50 % from baseline to EOT.
|
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
|
E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | No |
E.6.5 | Efficacy | No |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 10 |
E.8.5 | The trial involves multiple Member States | No |
E.8.5.1 | Number of sites anticipated in the EEA | 10 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
| |
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 2 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 2 |