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Safety and Efficacy of GL-2045 in Patients With Immune Thrombocytopenia

18. maj 2026 opdateret af: Gliknik Inc.

Initial Safety and Efficacy, Sequential Group, Adaptive Dose Study of GL-2045 Subcutaneous Injection Repeat Doses in Patients With Immune Thrombocytopenia

The goal of this clinical trial is to demonstrate GL-2045 safety and efficacy proof of concept by demonstrating intravenous immunoglobulin (IVig)-like platelet responses in adult patients with Immune Thrombocytopenia (ITP).

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

This is a Phase 1b, open-label, multiple subcutaneous (SC) injection dose study in participants with ITP. The specific aims of this study are to determine:

  • The safety of the study drug when given to participants with ITP
  • The effect of the study drug on safety blood tests and blood platelet counts
  • How the study drug affects certain responses in the body such as severity of bleeding, levels of fatigue and health-related quality of life
  • How much of the study drug gets into the bloodstream
  • The body's immune response to the study drug

This information, together with pharmacokinetic (PK) data, will help to establish doses and dosing regimens suitable for use in future studies. The effects of GL-2045 on multiple biomarkers will also be investigated.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

42

Fase

  • Fase 1

Kontakter og lokationer

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

Studiekontakt

Studiesteder

      • Leeds, Det Forenede Kongerige, LS11 9EH
        • Rekruttering
        • Fortrea Clinical Research Unit Ltd

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

Key Inclusion Criteria:

  1. Male or female between 18 and 80 years of age with ITP or certain limited ITP conditions.
  2. Females must not be pregnant or lactating. Males and females of childbearing potential must agree to use contraception.
  3. A platelet count of 10 to 49 × 10^9/L at baseline.
  4. Study subjects must have prior response to corticosteroids or to intravenous immunoglobin (IVIg) documented by a consultant hematologist. Prior response to thrombopoietin receptor agonists is insufficient for eligibility.
  5. The subject may be on a stable dose of corticosteroids for the 3 months prior to study entry, limited to a daily dose of prednisone 10 mg or equivalent. No reductions or increases of steroids are allowed during the study.

Key Exclusion Criteria:

  1. Any serious adverse event (SAE) with prior IVIg dosing.
  2. Prior splenectomy within 1 year of randomization or planned splenectomy during the study period.
  3. Participants with grade 2 bleeding by World Health Organization (WHO) bleeding criteria in the 8 weeks prior to treatment.
  4. Abnormal organ function including liver and kidney.
  5. Any previous or current treatments prohibited by the protocol.
  6. Treatment within the last 4 weeks or intention to treat during the study with a thrombopoietin receptor agonist including romiplostim (Nplate®), eltrombopag (Revolade®), or avatrombopag (Doptelet®).

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: N/A
  • Interventionel model: Sekventiel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: GL-2045

Participants will receive GL-2045 by SC injection during the treatment period.

Cohort 1: Adaptive design cohort during which dose adjustment may occur. Up to 18 participants will be enrolled

Cohort 2: Fixed-dose and dosing frequency testing 1 or 2 dose levels and dose regimens. Up to 24 participants will be enrolled

Administrative route: SC injection

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Incidence, severity and type of adverse events and laboratory abnormalities
Tidsramme: Screening (Days -28 to -2) to Follow-up (Day 55)
Screening (Days -28 to -2) to Follow-up (Day 55)
Multiple measurements of change from baseline in platelet count
Tidsramme: Day -1 to Follow-up (Day 55)
Day -1 to Follow-up (Day 55)

Sekundære resultatmål

Resultatmål
Tidsramme
Change from Baseline in Tumor Necrosis Factor-Alpha (TNF-α) Levels
Tidsramme: Day 1 to Follow-up (Day 55)
Day 1 to Follow-up (Day 55)
Change from Baseline in Classical Complement Pathway (CCP) Inhibition
Tidsramme: Day 1 to Follow-up (Day 55)
Day 1 to Follow-up (Day 55)
Changes in bleeding scale
Tidsramme: Day -1 to Follow-up (Day 55)
Day -1 to Follow-up (Day 55)
Changes from baseline in Functional Assessment of Chronic Illness Therapy (FACIT-Fatigue) Questionnaire
Tidsramme: Day -1 to Follow-up (Day 55)
Day -1 to Follow-up (Day 55)
Changes from baseline in FACIT-Thrombocytopenia 6 Questionnaire
Tidsramme: Day -1 to Follow-up (Day 55)
Day -1 to Follow-up (Day 55)
Area under the plasma concentration-time curve from time 0 to the time of last quantifiable concentration (AUCO-tlast)
Tidsramme: Day 1 to Follow-up (Day 55)
Day 1 to Follow-up (Day 55)
Maximum observed concentration (Cmax)
Tidsramme: Day 1 to Follow-up (Day 55)
Day 1 to Follow-up (Day 55)
Time of the maximum observed concentration (tmax)
Tidsramme: Day 1 to Follow-up (Day 55)
Day 1 to Follow-up (Day 55)
Incidence of immune response to drug
Tidsramme: Day 1 to Day 48
Day 1 to Day 48

Samarbejdspartnere og efterforskere

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

Sponsor

Efterforskere

  • Ledende efterforsker: Jim Bush, MBChB, PhD, Fortrea Clinical Research Unit Ltd.

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)

14. april 2026

Primær færdiggørelse (Anslået)

6. december 2027

Studieafslutning (Anslået)

6. december 2027

Datoer for studieregistrering

Først indsendt

29. april 2026

Først indsendt, der opfyldte QC-kriterier

18. maj 2026

Først opslået (Faktiske)

26. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

26. maj 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

18. maj 2026

Sidst verificeret

1. maj 2026

Mere information

Begreber relateret til denne undersøgelse

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

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 .

Kliniske forsøg med Immun trombocytopeni

Kliniske forsøg med GL-2045

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