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Studie účinnosti a bezpečnosti eltrombopagu u pacientů s MDS s nižším rizikem se závislostí na krevních destičkách

16. října 2026 aktualizováno: Novartis Pharmaceuticals

Randomizovaná, dvojitě zaslepená, placebem kontrolovaná japonská lokální klinická studie fáze II srovnávající monoterapii eltrombopagem s placebem u dospělých pacientů s myelodysplastickým syndromem s nižším rizikem (MDS) se závislostí na transfuzi krevních destiček

This study is designed to evaluate the efficacy and safety of eltrombopag monotherapy in Japanese adult patients with platelet transfusion-dependent lower-risk Myelodysplastic syndromes (LR-MDS).

Přehled studie

Postavení

Aktivní, ne nábor

Podmínky

Intervence / Léčba

Detailní popis

This is a randomized, double-blind, placebo-controlled, Japanese local phase II study to evaluate the efficacy and safety of eltrombopag monotherapy in Japanese adult patients with platelet transfusion-dependent lower-risk MDS (IPSS-R very low, low, intermediate risk with bone marrow blast count < 5% and cytogenetic very good, good or intermediate risk). Platelet transfusion dependence at baseline is defined as receiving platelet transfusion regularly with a frequency of 2 or more times within 4 weeks prior to randomization. Platelet transfusion should be performed for a patient with platelet counts < 20 X 10^9/L, or with hemorrhagic symptoms and platelet counts < 30 X 10^9/L.

The primary objective is to demonstrate superiority of eltrombopag versus placebo in terms of the proportion of participants who achieve platelet transfusion independence at Week 24.

Typ studie

Intervenční

Zápis (Aktuální)

36

Fáze

  • Fáze 2

Kontakty a umístění

Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.

Studijní místa

      • Aomori, Japonsko, 0308553
        • Novartis Investigative Site
      • Chiba, Japonsko, 2600852
        • Novartis Investigative Site
      • Fukushima, Japonsko, 9601295
        • Novartis Investigative Site
      • Gifu, Japonsko, 5008513
        • Novartis Investigative Site
      • Kumamoto, Japonsko, 8600008
        • Novartis Investigative Site
      • Osaka, Japonsko, 5340021
        • Novartis Investigative Site
      • Yamagata, Japonsko, 9909585
        • Novartis Investigative Site
    • Chiba
      • Narita, Chiba, Japonsko, 2868523
        • Novartis Investigative Site
    • Fukuoka
      • Kurume, Fukuoka, Japonsko, 8308543
        • Novartis Investigative Site
    • Hiroshima
      • Ohtake, Hiroshima, Japonsko, 7390696
        • Novartis Investigative Site
    • Hyōgo
      • Nishinomiya, Hyōgo, Japonsko, 6638501
        • Novartis Investigative Site
    • Ishikawa-ken
      • Kanazawa, Ishikawa-ken, Japonsko, 9208530
        • Novartis Investigative Site
    • Kanagawa
      • Isehara, Kanagawa, Japonsko, 2591193
        • Novartis Investigative Site
      • Yokohama, Kanagawa, Japonsko, 2210855
        • Novartis Investigative Site
    • Miyagi
      • Sendai, Miyagi, Japonsko, 9808574
        • Novartis Investigative Site
    • Nagasaki
      • Nagasaki, Nagasaki, Japonsko, 8528501
        • Novartis Investigative Site
    • Osaka
      • Sakai, Osaka, Japonsko, 5900197
        • Novartis Investigative Site
    • Tokyo
      • Bunkyo-ku, Tokyo, Japonsko, 1138603
        • Novartis Investigative Site
      • tabashi City, Tokyo, Japonsko, 1738606
        • Novartis Investigative Site
    • Yamaguchi
      • Shimonoseki, Yamaguchi, Japonsko, 7500061
        • Novartis Investigative Site

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

20 let až 100 let (Dospělý, Starší dospělý)

Přijímá zdravé dobrovolníky

Ne

Pohlaví způsobilá ke studiu

Všechno

Popis

Inclusion Criteria:

  • Patients diagnosed with MDS according to the WHO classification revised 4th edition by investigator assessment with one of the following prognostic risk categories, based on the International

Prognostic Scoring System (IPSS-R):

  • very low (0-1.5)

  • low (2-3)

  • intermediate risks (3.5-4.5) All following criteria for prognostic variables per IPSS-R should be met.

  • Bone marrow blast < 5% (per both investigator's assessment and central review)

  • Cytogenetic very good, good or intermediate risk corresponding to IPSS-R

    • Platelet transfusion dependence
    • Refractory, intolerant to, or ineligible for MDS treatments
    • Eastern Cooperative Oncology Group (ECOG) Performance status (PS) 0 or 1

Exclusion Criteria:

  • Patients with a history of prior administration of eltrombopag, romiplostim, or other TPO-RA
  • Therapy-related MDS per WHO classification revised 4th edition
  • MDS/myeloproliferative neoplasms including chronic myelomonocytic leukaemia per the WHO classification revised 4th edition
  • MDS with excess blasts (EB) per WHO classification revised 4th edition
  • Known history of IPSS-R high or very high risk MDS
  • Currently receiving treatments for MDS (e.g., HMA, cyclosporine A (CsA) or lenalidomide). Supportive treatment with erythropoiesis-stimulating agents (ESAs) or erythroid mutation agent in anemic patients or granulocyte-colony stimulating factor (G-CSF) in patients with severe neutropenia and recurrent infections is allowed if at stable dosage for 3 months prior to screening and continued at the same dosing/schedule until the optimal dose of eltrombopag has been established.
  • Patients scheduled for hematopoietic stem cell transplantation
  • Bone marrow fibrosis that leads to an inability to aspirate adequate bone marrow sample
  • Known thrombophilic risk factors (except in cases where potential benefits of participating in the study outweighed potential risks of thromboembolic events (TEE), as determined by the investigator)

Other protocol-defined inclusion/exclusion criteria may apply.

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

  • Primární účel: Léčba
  • Přidělení: Randomizované
  • Intervenční model: Paralelní přiřazení
  • Maskování: Žádné (otevřený štítek)

Zbraně a zásahy

Skupina účastníků / Arm
Intervence / Léčba
Experimentální: Eltrombopag Arm

Participants randomized to a 1: 1 ratio will take eltrombopag.

Eltrombopag comes in 12.5 mg & 25 mg tablets and is taken orally once per day (QD)

Ostatní jména:
  • ETB115
Komparátor placeba: Placebo Arm

Participants randomized to a 1: 1 ratio will take Placebo.

Placebo comes in 12.5 mg & 25 mg tablets and is taken orally once per day (QD)

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Percentage of participants who achieve platelet transfusion independence at Week 24
Časové okno: Week 24

Platelet transfusion independence is defined as the absence of platelet transfusion for at least 8 weeks. Platelet count should be higher than the baseline count.

Week 24

Sekundární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Time to platelet transfusion independence
Časové okno: Year 1, Year 2

This is defined as time from the date of randomization to the first day of a platelet transfusion-free period lasting at least 8 weeks.

Year 1, Year 2
Duration of platelet transfusion independence
Časové okno: Year 1, Year 2

This is defined for participants who have achieved platelet transfusion independence only and will be calculated from the first date of platelet transfusion-free resulting in achievement of transfusion independence to the date before becoming platelet transfusion dependent.

Year 1, Year 2
Percentage of participants with platelet transfusion independence
Časové okno: Year 1, Year 2

Platelet transfusion independence is defined as the absence of platelet transfusion for at least 8 weeks. Platelet count should be higher than the baseline count.

Year 1, Year 2
Percentage of participants with platelet transfusion frequency reduction at Week 24
Časové okno: Week 24

This is defined as a reduction by at least 50 percent during the 4 prior weeks as compared to the 4 weeks prior to randomization.

Week 24
Percentage of participants with platelet response (Hematologic improvement (HI) - platelet))
Časové okno: Week 24, Year 1, Year 2

Platelet response is defined as HI-platelet per International Working Group criteria.

Week 24, Year 1, Year 2
Time to platelet response
Časové okno: Week 24, Year 1, Year 2

This is defined as time from the date of randomization to the first date of achieving the platelet response criteria per modified IWG criteria.

Week 24, Year 1, Year 2
Duration of platelet response
Časové okno: Week 24, Year 1, Year 2

This is defined for participants who have achieved platelet response and will be calculated from the first date of achieving the platelet response criteria to the date before loss of platelet response per modified IWG criteria.

Week 24, Year 1, Year 2
Percentage of hematologic improvement-erythroid and -neutrophil
Časové okno: Week 24, Year 1, Year 2

per modified IWG criteria at 24 weeks, Year 1 and 2

Week 24, Year 1, Year 2
Percentage of participants with disease progression excluding relapse after HI
Časové okno: Week 24, Year 1, Year 2

This is with regards to blast counts for both investigator assessment and central review per modified IWG criteria.

Week 24, Year 1, Year 2
Percentage of participants with relapse after HI and transfusion independence
Časové okno: Week 24, Year 1, Year 2

The percentage of participants with relapse after HI and transfusion independence at Week 24, Year 1 and 2.

Week 24, Year 1, Year 2
Percentage of participants with progression to Acute myeloid leukemia (AML)
Časové okno: Week 24, Year 1, Year 2

This is defined as ≥ 20% blasts at Week 24, Year 1 and 2 for both investigator assessment and central review per WHO classification revised 4th edition.

Week 24, Year 1, Year 2
Leukemia free survival (LFS)
Časové okno: Week 24, Year 1, Year 2

This is defined as time from the date of randomization to progression to AML per WHO classification revised 4th edition of ≥ 20 percent blasts or death due to any cause for both investigator assessment and central review.

Week 24, Year 1, Year 2
Clinically significant bleeding events
Časové okno: Week 24, Year 1, Year 2

This is defined as ≥ grade 2 events as per WHO bleeding scale.

Week 24, Year 1, Year 2
Overall survival (OS)
Časové okno: Week 24, Year 1, Year 2

OS is defined as time from randomization to death due to any cause.

Week 24, Year 1, Year 2
Quality of Life measured using QLQ-C30
Časové okno: Baseline, every 4 weeks until week 52, every 8 weeks after week 52 up to end of treatment or end of post-treatment follow-up, approximately 3.5 years.

The changes from baseline to each visit where measured using QLQ-C30. EORTC-QLQ-C30 is a 30-item questionnaire developed to assess the quality of life of cancer patients. Subject's responses to 28 questions about their physical functioning, disease symptoms, global health status and utilities are scored on a 4-point scale (1=Not at all to 4=Very much), a low score indicates a high / healthy level of functioning. And the responses to 2 questions about health-related QoL are scored on a 7-point scale (1=Very poor to 7=Excellent), a high score indicates a high / healthy level of functioning.

Using linear transformation, raw scores are standardized, so that scores range from 0 to 100.

Baseline, every 4 weeks until week 52, every 8 weeks after week 52 up to end of treatment or end of post-treatment follow-up, approximately 3.5 years.
Pharmacokinetics (PK): Cmax
Časové okno: Intensive: pre-dose, 1, 2, 4, 6, 8, and 24 hours post-dose. Trough: 15th days after starting the initial dose or each dose modification until reaching the maximum dose.

Full PK profile of eltrombopag over 24 hours at steady state at the initial dose, and at 125 mg and 150 mg when applicable, in subset of participants.

Intensive: pre-dose, 1, 2, 4, 6, 8, and 24 hours post-dose. Trough: 15th days after starting the initial dose or each dose modification until reaching the maximum dose.
PK: Tmax
Časové okno: Intensive: pre-dose, 1, 2, 4, 6, 8, and 24 hours post-dose. Trough: 15th days after starting the initial dose or each dose modification until reaching the maximum dose.

Full PK profile of eltrombopag over 24 hours at steady state at the initial dose, and at 125 mg and 150 mg when applicable, in subset of participants.

Intensive: pre-dose, 1, 2, 4, 6, 8, and 24 hours post-dose. Trough: 15th days after starting the initial dose or each dose modification until reaching the maximum dose.
PK: AUC
Časové okno: Intensive: pre-dose, 1, 2, 4, 6, 8, and 24 hours post-dose. Trough: 15th days after starting the initial dose or each dose modification until reaching the maximum dose.

Full PK profile of eltrombopag over 24 hours at steady state at the initial dose, and at 125 mg and 150 mg when applicable, in subset of participants.

Intensive: pre-dose, 1, 2, 4, 6, 8, and 24 hours post-dose. Trough: 15th days after starting the initial dose or each dose modification until reaching the maximum dose.
Trough concentrations of eltrombopag at steady state
Časové okno: Intensive: pre-dose, 1, 2, 4, 6, 8, and 24 hours post-dose. Trough: 15th days after starting the initial dose or each dose modification until reaching the maximum dose.

at each dose level in all the participants

Intensive: pre-dose, 1, 2, 4, 6, 8, and 24 hours post-dose. Trough: 15th days after starting the initial dose or each dose modification until reaching the maximum dose.

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Sponzor

Vyšetřovatelé

  • Ředitel studie: Novartis Pharmaceuticals, Novartis Pharmaceuticals

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia (Aktuální)

25. května 2021

Primární dokončení (Aktuální)

26. dubna 2025

Dokončení studie (Odhadovaný)

2. prosince 2026

Termíny zápisu do studia

První předloženo

4. března 2021

První předloženo, které splnilo kritéria kontroly kvality

11. března 2021

První zveřejněno (Aktuální)

15. března 2021

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

20. října 2026

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

16. října 2026

Naposledy ověřeno

1. října 2026

Více informací

Termíny související s touto studií

Další identifikační čísla studie

  • CETB115L11201

Plán pro data jednotlivých účastníků (IPD)

Plánujete sdílet data jednotlivých účastníků (IPD)?

ANO

Popis plánu IPD

Novartis is committed to sharing with qualified external researchers, access to patient-level data and supporting clinical documents from eligible studies. These requests are reviewed and approved by an independent review panel on the basis of scientific merit. All data provided is anonymized to respect the privacy of patients who have participated in the trial in line with applicable laws and regulations.

This trial data availability is according to the criteria and process described on www.clinicalstudydatarequest.com

Informace o lécích a zařízeních, studijní dokumenty

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Studuje produkt zařízení regulovaný americkým úřadem FDA

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