Denne side blev automatisk oversat, og nøjagtigheden af ​​oversættelsen er ikke garanteret. Der henvises til engelsk version for en kildetekst.

Multi-target Drugs Sequential Combination Therapy in Adults Patients With Newly Diagnosed Primary Immune Thrombocytopenia

Efficacy and Safety of Multi-Target Drugs Sequential Combination Therapy in Adults Patients With Newly Diagnosed Primary Immune Thrombocytopenia: A Prospective, Single-arm, Multicenter, Exploratory Trial

This prospective, single-arm, multicenter, exploratory study will enroll 38 adults patients with newly diagnosed primary immune thrombocytopenia (ITP). Patients will receive standard-dose corticosteroids plus a thrombopoietin receptor agonist (TPO-RA) as initial therapy During the core treatment phase (Weeks 1-12). Corticosteroids will be tapered and discontinued within 8 weeks, whereas TPO-RA treatment will continue for 12 weeks. For patients with treatment failure( defined as platelet count < 30 × 10^9/L or less than 2-fold increase of baseline platelet count or bleeding) ,a sequential multitarget combination strategy will be explored in subsequent treatment phases. Specifically, patients with treatment failure after 2 weeks of initial therapy (Weeks 3-12), will receive the ongoing TPO-RA in combination with either rituximab or an anti-CD38 monoclonal antibody(mAb) as sequential combination therapy.

During the core treatment follow-up phase (24 weeks), patients with treatment failure will enter the exploratory treatment phase (Weeks 13-36) .

Patients who received multi-target drug therapy during the core treatment period will switch to an alternative TPO-RA with cross-administered rituximab and anti-CD38 mAb, while those who did not will receive sequential rituximab or anti-CD38 mAb.

Finally, patients will enter the safety follow up period (4 weeks, weeks 37-40).

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

The study will be conducted in three phases.

Phase 1. Core treatment phase includes initial treatment and sequential combination therapy (12 weeks, weeks 1-12):

Patients will receive standard-dose methylprednisolone or prednisone in combination with a thrombopoietin receptor agonist (TPO-RA) as initial therapy.Corticosteroids will be tapered and discontinued within 8 weeks; tapering will begin immediately in patients who achieve complete response (CR) and will also be initiated after 4 weeks in patients who do not achieve response (R). TPO-RA therapy will continue for 12 weeks, with dose adjustments made according to the approved prescribing information. Patients with treatment failure( defined as platelet count < 30 × 10^9/L or less than 2-fold increase of baseline platelet count or bleeding) after 2 weeks of initial therapy (Weeks 3-12) will receive the ongoing TPO-RA in combination with either rituximab or an anti-CD38 monoclonal antibody as sequential combination therapy.

Phase 2. Core-treatment follow-up and exploratory treatment phase (24weeks, weeks 13-36):

During the core treatment follow-up phase, patients with treatment failure will enter the exploratory treatment phase. Patients who did not receive rituximab or anti-CD38 monoclonal antibody during the core treatment phase will receive a switched TPO-RA combined with either rituximab or anti-CD38 monoclonal antibody, whereas patients who received either rituximab or anti-CD38 monoclonal antibody during the core phase will receive a switched TPO-RA combined with cross-administered rituximab and anti-CD38 monoclonal antibody.TPO-RA therapy will also continue for 12 weeks.

Phase3. Safety follow-up phase (4weeks,weeks 37-40).

Rescue therapy includes, but is not limited to, intravenous immunoglobulin (IVIG), platelet transfusion, and vindesine. A switch to another thrombopoietin receptor agonist (TPO-RA) will be considered rescue therapy during the core treatment period. Administration of recombinant human thrombopoietin (rhTPO) will also be considered rescue therapy.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

38

Fase

  • Fase 4

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

      • Tianjin, Kina, 300020
        • Rekruttering
        • Ethics Committee of Hematology Hospital, Chinese Academy of Medical Sciences
        • Kontakt:

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  1. Age ≥18 years.
  2. Confirmed newly diagnosed primary ITP with a platelet count <30 × 10^9/L.
  3. No prior ITP-related treatment before enrollment, except for standard-dose corticosteroids and/or IVIG for ≤5 days.
  4. Able to understand the study and provide signed informed consent.-

Exclusion Criteria:

  1. Use of corticosteroids or immunosuppressants for a non-ITP condition within 3 months.
  2. Contraindication to corticosteroid therapy.
  3. Arterial or venous thromboembolic event within 3 months.
  4. Pregnant or breastfeeding women.
  5. Current treatment with another investigational drug.
  6. Any other medical history or condition that, in the investigator's judgment, makes the participant unsuitable for the study.

    -

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Ikke-randomiseret
  • Interventionel model: Sekventiel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Initial therapy
standard-dose corticosteroids plus a thrombopoietin receptor agonist (TPO-RA)
Methylprednisolone 0.8-1mg/kg/day administered intravenously or orally; or prednisone 1 mg/kg/day, up to a maximum dose of 80 mg/day
Dosing will follow the recommended dose in the prescribing information; in severe ITP, the initial dose will be selected according to BAT (best available therapy) principles.
Eksperimentel: Sequential Combination Therapy
the ongoing TPO-RA in combination with either rituximab or an anti-CD38 monoclonal antibody(mAb)
Dosing will follow the recommended dose in the prescribing information; in severe ITP, the initial dose will be selected according to BAT (best available therapy) principles.
Administered as 375 mg/m² by intravenous infusion for a single dose, or 100 mg by intravenous infusion once weekly for a total of 4 doses.
Administered at 16 mg/kg by intravenous infusion once weekly for a total of 4-8 doses.
Eksperimentel: Exploratory treatment
a switched TPO-RA combined with either rituximab or anti-CD38 monoclonal antibody
Dosing will follow the recommended dose in the prescribing information; in severe ITP, the initial dose will be selected according to BAT (best available therapy) principles.
Administered as 375 mg/m² by intravenous infusion for a single dose, or 100 mg by intravenous infusion once weekly for a total of 4 doses.
Administered at 16 mg/kg by intravenous infusion once weekly for a total of 4-8 doses.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
sustained response rate
Tidsramme: between weeks 13 and 36
Defined as the proportion of patients who achieve a platelet count ≥30×10^9/L at least 6 out of 12 scheduled visits during the 24 weeks following the core treatment period (weeks 13-36), in the absence of rescue therapy
between weeks 13 and 36

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
time to response
Tidsramme: in 0-12 weeks
The time from treatment initiation to achieve a complete response(platelet count ≥100 × 109/L and absence of bleeding) or a partial response(platelet count ≥30 × 10^9/L and at least 2-fold increase of the baseline platelet count and absence of bleeding)
in 0-12 weeks
Early response.
Tidsramme: at 1 week
Proportion of patients achieving platelet count ≥30 × 10^9/L and at least doubling baseline at 1 week after treatment initiation.
at 1 week
Initial response
Tidsramme: at 1 month
Proportion of patients achieving platelet count ≥30 × 10^9/L and at least doubling baseline at 1 month after treatment initiation.
at 1 month
overall response(OR) rate at week 12
Tidsramme: at week 12
Proportion of patients achieving complete response (CR) plus response (R) at Week 12
at week 12
Proportion of patients requiring rescue therapy
Tidsramme: in 0-36 weeks
in 0-36 weeks
bleeding scores
Tidsramme: in 0-40 weeks
Assessed according to the WHO Bleeding Scale and the ITP Bleeding Scale
in 0-40 weeks
Immune Thrombocytopenia Patient Assessment Questionnaire (ITP-PAQ)
Tidsramme: in 0-40 weeks
In all participants ,use ITP-PAQ to assess the HRQoL before and after treatment.
in 0-40 weeks
Functional Assessment of 36-Item Short Form Survey (SF-36) scale
Tidsramme: in 0-40 weeks
In all participants ,use SF-36 scale to assess the HRQoL before and after treatment.
in 0-40 weeks

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Efterforskere

  • Studieleder: Lei Zhang, Thrombosis and Haemostasis Diagnosis Treatment Center

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

22. juni 2026

Primær færdiggørelse (Anslået)

30. maj 2027

Studieafslutning (Anslået)

30. juni 2027

Datoer for studieregistrering

Først indsendt

5. august 2026

Først indsendt, der opfyldte QC-kriterier

24. august 2026

Først opslået (Faktiske)

26. august 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

26. august 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

24. august 2026

Sidst verificeret

1. juli 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • IIT2025106
  • Investigator-Initiated Trial (Andet bevillings-/finansieringsnummer: Chinese Academy of Medical Sciences (CAMS) Innovation Fund for Medical Sciences)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

IPD-planbeskrivelse

No plan to share IPD has been established at this time

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .