Clinical trial
Multicenter Randomized Double-blind Comparative Study of Clinical Efficacy and Safety of GNR-069 (JSC "GENERIUM", Russia) and Nplate (Amgen Europe BV, The Netherlands) in Patients With Idiopathic Thrombocytopenic Purpura
Name
RMP-ITP-III
Description
It is a phase III multicenter randomized double-blinded comparative study of clinical efficacy and safety of GNR-069 and Nplate in patients with idiopathic thrombocytopenic purpura
Trial arms
Trial start
2021-09-09
Estimated PCD
2023-08-22
Trial end
2023-10-19
Status
Completed
Phase
Early phase I
Treatment
GNR-069
Once a week as a subcutaneous injection. The initial dose is 1 mcg/kg.
Arms:
GNR-069
Other names:
romiplostim
Nplate
Once a week as a subcutaneous injection. The initial dose is 1 mcg/kg.
Arms:
Nplate
Other names:
romiplostim
Size
160
Primary endpoint
Proportion of patients achieving sustained response to treatment
26 weeks
Eligibility criteria
Inclusion Criteria:
1. Written Informed Consent Form to participate in the study;
2. Men and women aged 18-75 years inclusive at the time of signing the Informed Consent Form;
3. Documented diagnosis of ITP with a disease duration of more than 12 months from the moment of confirmation of the diagnosis by bone marrow aspirate or biopsy results;
4. A. For patients who have not had splenectomy:
* established absence/loss of response to therapy with at least one drug of fist-line treatment for ITP (which include GCs an IVIG); OR
* the occurrence of side effects during the course of therapy with the drug of the fist-line, making it impossible to use it further;
B. For patients who underwent splenectomy:
• loss/lack of response to splenectomy;
5. Thrombocytopenia ≥30.0 x 109/L - \<50.0 x 109/L with severe hemorrhagic syndrome or thrombocytopenia \<30.0 x 109/l, regardless of the presence of hemorrhagic syndrome, according to the results of platelet count conducted in a local laboratory for 7 days before the start of therapy with investigational or reference drug;
6. Patients receiving GCs, azathioprine and danazole should receive these drugs in a maintenance dose for at least 4 weeks before starting therapy with investigational or reference drug;
7. Consent of study participants with preserved childbearing function to use reliable methods of contraception (a combination of at least two methods, including 1 barrier method, for example, the use of a condom and spermicide) from the moment of signing the Informed Consent Form and 3 months after the last administration of investigational or reference drug.
Exclusion Criteria:
1. Hypersensitivity to the components of investigational or reference drug or E. coli proteins ;
2. Unresolved severe hemorrhagic syndrome requiring emergency treatment at the time of initiation of study or reference drug therapy ;
3. Fisher-Evans Syndrome;
4. Conditions with a high risk of thromboembolic complications ;
5. Myelodysplastic syndrome and/or bone marrow transplantation in anamnesis;
6. Deviations of clinical and laboratory parameters according to the results of studies of blood samples taken during the screening period;
7. Positive test results for hepatitis B, hepatitis C, or human immunodeficiency virus (HIV);
8. Pregnancy or breastfeeding;
9. Use of drugs:
* romiplostim used less than 3 weeks before treatment with study or reference drug;
* IVIG - less than 2 weeks prior to initiation of study or reference drug therapy;
* eltrombopag - used less than 2 weeks before treatment with study or reference drug, or planned to use eltrombopag while the patient is participating in this study;
* rituximab - used less than 14 weeks before treatment with study or reference drug, or planned to use rituximab while the patient is enrolled in this study;
* cyclophosphamide, cyclosporine, vincristine, vinblastine and other drugs used to treat ITP not listed above and not included in the list of drugs approved for use during the study - use less than 8 weeks before the start of therapy with the study or reference drug or the use of any of these drugs is planned during the patient's participation in this study;
* preparations of any hematopoietic growth factors - use less than 8 weeks before the start of therapy with an investigational or reference drug;
* Influenza vaccines - less than 21 days prior to start of treatment with study or reference drug;
* vaccines to prevent novel coronavirus disease (COVID-19) - completion of the vaccination program less than 21 days prior to the start of study or reference drug therapy;
* other vaccines - less than 8 weeks prior to start of treatment with study or reference drug;
10. Splenectomy within 12 weeks prior to screening;
11. Participation in any clinical trials and/or use of unregistered drugs within 4 weeks prior to screening or 5 drug half-lives (whichever is greater);
12. Any other disease or condition that, in the opinion of the investigator, may preclude the patient from participating in the study.
Protocol
{'studyType': 'INTERVENTIONAL', 'phases': ['PHASE3'], 'designInfo': {'allocation': 'RANDOMIZED', 'interventionModel': 'PARALLEL', 'interventionModelDescription': 'Parallel assignment', 'primaryPurpose': 'TREATMENT', 'maskingInfo': {'masking': 'DOUBLE', 'maskingDescription': 'Double-blinded', 'whoMasked': ['PARTICIPANT', 'INVESTIGATOR']}}, 'enrollmentInfo': {'count': 160, 'type': 'ACTUAL'}}
Updated at
2024-03-06
1 organization
2 products
1 indication
Organization
AO GeneriumProduct
NplateIndication
Immune Thrombocytopenic PurpuraProduct
GNR-069