NCT05599880

Brief Summary

to investigate efficacy and safety evaluation of bortezomib in patients with relapsed/refractory immune thrombocytopenia

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
29

participants targeted

Target at below P25 for phase_2

Timeline
32mo left

Started Jul 2023

Longer than P75 for phase_2

Geographic Reach
1 country

4 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress52%
Jul 2023Dec 2028

First Submitted

Initial submission to the registry

October 26, 2022

Completed
5 days until next milestone

First Posted

Study publicly available on registry

October 31, 2022

Completed
8 months until next milestone

Study Start

First participant enrolled

July 7, 2023

Completed
4.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2027

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2028

Last Updated

February 2, 2026

Status Verified

January 1, 2026

Enrollment Period

4.5 years

First QC Date

October 26, 2022

Last Update Submit

January 29, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Confirmation of efficacy of bortezomib in patients with relapsed/refractory immune thrombocytopenia requiring treatment

    platelet \>30 x 109/L and at least twofold increase from baseline; complete \>100 x 109/L, partial 30-100 x 109/L, Platelet response rate at week 9.

    at week 9.

Study Arms (1)

Treatment

EXPERIMENTAL

Bortezomib is administered at 1.3mg/m2 iv or sc on each Cycly Day1, Days4, and Days8. Bortezomib is administered every 3 weeks for a total of 3 cycles. Thereafter, follow-up is scheduled for 12 months.

Drug: Bortezomib

Interventions

Bortezomib is administered at 1.3mg/m2 iv or sc on each Cycly Day1, Days4, and Days8. Bortezomib is administered every 3 weeks for a total of 3 cycles. Thereafter, follow-up is scheduled for 12 months.

Treatment

Eligibility Criteria

Age19 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Men and women 19 years of age and older
  • Patients diagnosed with immune thrombocytopenia (primary or secondary)
  • (Patients with at least one of B, C, or D meeting A below.) A.A person who has been confirmed not to be due to a cause of decreased platelet production in the bone marrow in the results of bone marrow examination within the past 5 years. (Bone marrow examination is required if there is no bone marrow examination result within the last 5 years.) B.After being diagnosed with ITP, there has been a case of complete platelet response with plt \>100k in immunoglobulin therapy.
  • C.Patients suspected of having primary immune thrombocytopenia with proven anti-platelet antibody., D.Helicobacter IgG, antinuclear antibody (ANA), anticardiolipin antibody (ACA), nonspecific inhibitor (NSI), etc. have been proven, and secondary immune thrombocytopenia caused by autoimmune disease is suspected.
  • platelets \<30 x 109/L
  • Patients in need of clinical treatment.
  • Patients who have relapsed or refractory after receiving treatment with corticosteroids (prednisolone cumulative dose 5.6mg/kg (0.8mg/kg 1 week) or more or dexamethasone cumulative dose 80mg (20mg 4 days) or more)., However, there are exceptions when corticosteroids are contraindicated.
  • Patients who have been relapsed or refractory after receiving at least 2 treatments with a mechanism other than corticosteroids.
  • Patients who underwent two different treatments from among the treatment methods below.
  • Splenectomy
  • eltrombopag or romiplostim
  • Rituximab treatment
  • Azathioprine
  • cyclosporine or mycophenolate mofetil(MMF)
  • vincristine or cyclophosphamide
  • +5 more criteria

You may not qualify if:

  • pregnant, lactating women
  • Patients allergic to bortezomib.
  • Patients with Grade 2 or higher peripheral neuropathy requiring drug treatment.
  • Patients with severe or uncontrolled active infection.
  • Patients with significant immunoglobulin degradation in the immunoglobulin profile.
  • HBV, HCV carrier or HIV patient. (However, if the patient is being stably maintained with antiviral treatment, and the expert opinion determines that it is possible to participate in the clinical trial along with antiviral treatment and prevention, participation is possible.)
  • Patients currently undergoing chemotherapy.
  • Patients whose bone marrow did not recover after cancer treatment, or whose cause other than immune destruction was confirmed by bone marrow examination, such as thrombocytopenia due to intramedullary abnormalities. However, if the presence of anti-platelet antibodies is proven and thrombocytopenia due to immune destruction is strongly suspected clinically, registration is possible even if there are other causes of thrombocytopenia.)
  • Patients who may become pregnant. However, women of childbearing age(If postmenopausal women are not of childbearing age, they must have been menstruating for at least 12 months.) who have not undergone sterilization can participate in the clinical trial only if the pregnancy test is negative. And, effective contraception must be maintained throughout the entire trial period.
  • Patients currently participating in other clinical trials.
  • Patients who are not considered suitable for participation in clinical trials in the opinion of the researcher.
  • Patients with inadequate organ function.
  • total bilirubin \> 3 x ULN
  • creatinine \> 1.5 x ULN
  • liver function test AST(SGOT) \& ALT(SGPT) \> 3 x ULN

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (4)

Seoul National University Bundang Hospital

Guri-si, South Korea

RECRUITING

Seoul National University Hospital

Seoul, 03080, South Korea

RECRUITING

SMG-SNU Boramae Medical Center

Seoul, 07061, South Korea

RECRUITING

Seoul National University Hospital

Seoul, South Korea

NOT YET RECRUITING

MeSH Terms

Conditions

Purpura, Thrombocytopenic, Idiopathic

Interventions

Bortezomib

Condition Hierarchy (Ancestors)

Purpura, ThrombocytopenicPurpuraBlood Coagulation DisordersHematologic DiseasesHemic and Lymphatic DiseasesThrombotic MicroangiopathiesThrombocytopeniaBlood Platelet DisordersCytopeniaHemorrhagic DisordersAutoimmune DiseasesImmune System DiseasesHemorrhagePathologic ProcessesPathological Conditions, Signs and SymptomsSkin ManifestationsSigns and Symptoms

Intervention Hierarchy (Ancestors)

Boronic AcidsAcids, NoncarboxylicAcidsInorganic ChemicalsBoron CompoundsOrganic ChemicalsPyrazinesHeterocyclic Compounds, 1-RingHeterocyclic Compounds

Study Officials

  • Dong-Yeop Shin, MD, PhD

    Seoul National University Hospital

    STUDY CHAIR

Central Study Contacts

Dong-Yeop Shin, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
hematology oncology Professor

Study Record Dates

First Submitted

October 26, 2022

First Posted

October 31, 2022

Study Start

July 7, 2023

Primary Completion (Estimated)

December 31, 2027

Study Completion (Estimated)

December 31, 2028

Last Updated

February 2, 2026

Record last verified: 2026-01

Locations