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En undersøgelse af AG-946 hos deltagere med anæmi på grund af lavere risiko for myelodysplastiske syndromer (LR-MDS)

25. september 2026 opdateret af: Agios Pharmaceuticals, Inc.

En fase 2a/2b, åben-label, bevis på koncept (fase 2a) og dobbeltblind, randomiseret, placebokontrolleret (fase 2b), multicenter-, effektivitets- og sikkerhedsundersøgelse af AG-946 i deltagere med anæmi på grund af lavere - Risiko for myelodysplastiske syndromer

This purpose of this study is to establish proof of concept of tebapivat in participants with LR-MDS in Phase 2a and to evaluate the effect of tebapivat on transfusion independence (TI) in participants with LR-MDS in phase 2b.

Studieoversigt

Status

Aktiv, ikke rekrutterende

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

87

Fase

  • Fase 2

Kontakter og lokationer

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

Studiesteder

    • Victoria
      • Clayton, Victoria, Australien, 3168
        • Monash Health, Monash Medical Centre
      • Edinburgh, Det Forenede Kongerige, EH24 2XU
        • Western General Hospital Edinburgh - PPDS
      • London, Det Forenede Kongerige, SE5 9RS
        • Kings College Hospital
      • Oxford, Det Forenede Kongerige, OX3 7LE
        • Churchill Hospital-NHS Oxford
    • Aberdeen City
      • Aberdeen, Aberdeen City, Det Forenede Kongerige, AB25 2ZN
        • Aberdeen Royal Infirmary - PPDS
    • California
      • Lakewood, California, Forenede Stater, 90805
        • Innovative Clinical Research Institute Whittier
      • Los Angeles, California, Forenede Stater, 90024
        • David Geffen School of Medicine at UCLA
      • Redlands, California, Forenede Stater, 92373
        • Emad Ibrahim, MD, Inc.
    • Connecticut
      • New Haven, Connecticut, Forenede Stater, 06510
        • Smilow Cancer Hospital at Yale New Haven
    • Florida
      • Jacksonville, Florida, Forenede Stater, 32224
        • Mayo Clinic Jacksonville - PPDS
    • Illinois
      • Skokie, Illinois, Forenede Stater, 60076
        • Edward H. Kaplan MD & Associates
    • Missouri
      • St Louis, Missouri, Forenede Stater, 63110
        • Washington University School of Medicine
    • New York
      • Long Island City, New York, Forenede Stater, 11101
        • Memorial Sloan Kettering Cancer Center
    • North Carolina
      • Durham, North Carolina, Forenede Stater, 27705
        • Duke Adult Blood and Marrow Clinic
      • Lille, Frankrig, 59037
        • CHRU Lille
      • Paris, Frankrig, 75475
        • Hôpital Saint Louis
    • Bouches-du-Rhône
      • Marseille, Bouches-du-Rhône, Frankrig, 13010
        • Hôpital de La Conception
    • Maine-et-Loire
      • Angers, Maine-et-Loire, Frankrig, 49933
        • CHU Angers
      • Alexandroupoli, Grækenland
        • University Hospital of Alexandroupolis
      • Athens, Grækenland
        • Attikon University General Hospital
      • Pátrai, Grækenland
        • University General Hospital of Patras
      • Thessaloniki, Grækenland
        • Hippokration Hospital
      • Jerusalem, Israel, 9103102
        • Shaare Zedek Medical Center
      • Tel Aviv, Israel
        • Tel Aviv Sourasky Medical Center PPDS
      • Roma, Italien
        • Fondazione PTV Policlinico Tor Vergata
    • Lombardy
      • Milan, Lombardy, Italien
        • Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico
      • Pavia, Lombardy, Italien
        • Fondazione IRCCS Policlinico San Matteo di Pavia
      • Rozzano, Lombardy, Italien
        • Istituto Clinico Humanitas
    • Piedmont
      • Turin, Piedmont, Italien
        • Azienda Ospedaliera Ordine Mauriziano di Torino
    • Masovian Voivodeship
      • Warsaw, Masovian Voivodeship, Polen
        • MTZ Clinical Research Powered by PRATIA - PPDS
    • Silesian Voivodeship
      • Katowice, Silesian Voivodeship, Polen
        • Pratia Onkologia Katowice - PRATIA - PPDS
    • Warmian-Masurian Voivodeship
      • Olsztyn, Warmian-Masurian Voivodeship, Polen
        • SPZOZ MiSWiA z Warminsko-Mazurskim Centrum Onkologii w Olsztynie
      • Córdoba, Spanien, 14004
        • C.H. Regional Reina Sofia - PPDS
      • Madrid, Spanien, 28046
        • Hospital Universitario La Paz - PPDS
      • Madrid, Spanien, 28050
        • Hospital Universitario HM Sanchinarro - CIOCC
      • Salamanca, Spanien, 37007
        • Complejo Asistencial Universitario de Salamanca - H. Clinico
      • Seville, Spanien, 41013
        • Hospital Universitario Virgen del Rocio - PPDS
      • Daegu, Sydkorea, 41944
        • Kyungpook National University Hospital
      • Seoul, Sydkorea, 05505
        • Asan Medical Center - PPDS
      • Seoul, Sydkorea
        • The Catholic University of Korea, Seoul St. Mary's Hospital
      • Ostrava, Tjekkiet, 708 52
        • Fakultni nemocnice Ostrava
    • Lower Saxony
      • Hanover, Lower Saxony, Tyskland, 30625
        • Medizinische Hochschule Hannover
    • North Rhine-Westphalia
      • Düsseldorf, North Rhine-Westphalia, Tyskland, 40225
        • Universitatsklinikum Dusseldorf
    • Saxony
      • Leipzig, Saxony, Tyskland, 04103
        • Universitatsklinikum Leipzig
    • Upper Austria
      • Linz, Upper Austria, Østrig, 4020
        • Ordensklinikum Linz GmbH Elisabethinen

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

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

Phase 2a

  1. At least 18 years of age at the time of providing informed consent;

  2. Documented diagnosis of myelodysplastic syndromes (MDS) according to World Health Organization (WHO) classification (Arber et al, 2016), that meets Revised International Prognostic Scoring System (IPSS-R) classification of lower-risk disease (risk score: ≤3.5) and <5% blasts as determined by the participant's bone marrow biopsy/aspirate during the Screening Period;

  3. Nontransfused or with low transfusion burden (LTB), based on transfusion history from the participant's medical record, according to revised International Working Group (IWG) 2018 criteria:

    • Nontransfused (NTD): <3 red blood cell (RBC) units in the 16-week period before administration of the first dose of study drug and no transfusions in the 8-week period before administration of the first dose of study drug, or
    • LTB: 3 to 7 RBC units in the 16-week period before administration of the first dose of study drug and <4 RBC units in the 8-week period before administration of the first dose of study drug;
  4. A hemoglobin (Hb) concentration <11.0 grams per deciliter (g/dL) during the 4-week Screening Period;

  5. Eastern Cooperative Oncology Group (ECOG) Performance Status score of 0, 1, or 2;

  6. If taking iron chelation therapy, the iron chelation therapy dose must have been stable and started ≥56 days before administration of the first dose of study drug;

  7. Women of childbearing potential (WOCBP) must be abstinent of sexual activities that may result in pregnancy as part of their usual lifestyle or agree to use a highly effective method of contraception from the time of providing informed consent, throughout the study, and for 28 days after the last dose of study drug; if the highly effective method of contraception is hormonal contraception, then an acceptable barrier method must also be used. Men with partners who are WOCBP must be abstinent of sexual activities that may result in pregnancy as part of their usual lifestyle or agree to use a condom from the time of providing informed consent throughout the study and for 28 days after the last dose of study drug;

  8. Written informed consent from the participant before any study-related procedures are conducted and willing to comply with all study procedures for the duration of the study.

Phase 2b

  1. At least 18 years of age at the time of providing informed consent;

  2. Documented diagnosis of MDS according to WHO classification (Arber et al, 2016), that meets IPSS-R classification of lower-risk disease (risk score: ≤3.5) and <5% blasts as determined by the participant's bone marrow biopsy/aspirate during the Screening Period;

  3. With LTB, or high transfusion burden (HTB), based on transfusion history from the participant's medical record, according to revised IWG 2018 criteria:

    1. LTB: 3 to 7 RBC units from at least 2 transfusion episodes in the 16-week period before administration of the first dose of study drug AND <4 RBC units in the 8-week period before administration of the first dose of study drug, or
    2. HTB: ≥8 RBC units in the 16-week period before administration of the first dose of study drug AND ≥4 RBC units in the 8-week period before administration of the first dose of study drug

    If a participant's transfusion burden does not fall into either the LTB or HTB category, as defined per IWG 2018 criteria, then the transfusion burden will be categorized based on their transfusion history in the 16-week period before administration of the first dose of study drug.

  4. Pretransfusion Hb concentration available for a minimum of 2 and at least half (50%) of the transfusions received in the 16-week period before administration of the first dose of study drug

  5. A Hb concentration <10.0 g/dL during the 4-week Screening Period;

  6. Up to 2 prior therapies including erythropoiesis-stimulating agents (ESAs) (eg, erythropoietin [EPO], EPO + granulocyte colony-stimulating factor [G-CSF]) and/or luspatercept;

  7. ECOG Performance Status score of 0, 1, or 2;

  8. If taking iron chelation therapy, the iron chelation therapy dose must have been stable and started ≥56 days before administration of the first dose of study drug;

  9. WOCBP must be abstinent of sexual activities that may result in pregnancy as part of their usual lifestyle or agree to use a highly effective, from the time of providing informed consent throughout the study and for 28 days after the last dose of study drug; if the highly effective method of contraception is hormonal contraception, then an acceptable barrier method must be used. Men with partners who are WOCBP must be abstinent of sexual activities that may result in pregnancy as part of their usual lifestyle or agree to use a condom from the time of providing informed consent throughout the study and for 28 days after the last dose of study drug;

  10. Written informed consent from the participant before any study-related procedures are conducted and willing to comply with all study procedures for the duration of the study.

Exclusion Criteria:

Phase 2a

  1. Known history of acute myeloid leukemia (AML);

  2. Secondary MDS, defined as MDS that is known to have arisen as a result of chemical injury or treatment with chemotherapy and/or radiation for other diseases;

  3. Prior exposure to a pyruvate kinase activator and/or disease-modifying agents for underlying MDS:

    • Immunomodulatory drugs (IMiDs) such as lenalidomide; at the Investigator's discretion and in consultation with the Medical Monitor, participants who received ≤1 week of treatment with IMiDs may not be excluded, provided their last dose was ≥8 weeks before administration of the first dose of study drug
    • Hypomethylating agents (HMAs); at the Investigator's discretion and in consultation with the Medical Monitor, participants who received ≤2 doses of HMAs may not be excluded, provided that their last dose was ≥8 weeks before administration of the first dose of study drug
    • Isocitrate dehydrogenase (IDH) inhibitors
    • Immunosuppressive therapy (IST)
    • Allogeneic or autologous stem cell transplant;
  4. Currently receiving treatment with ESAs±G-CSF and/or luspatercept. Treatment with ESAs±G-CSF must have been stopped for ≥28 days before administration of the first dose of study drug; treatment with luspatercept must have been stopped for ≥65 days before administration of the first dose of study drug;

  5. History of active and/or uncontrolled cardiac or pulmonary disease within 6 months before providing informed consent, including but not limited to:

    • New York Heart Association Class III or IV heart failure or clinically significant dysrhythmia
    • Myocardial infarction, unstable angina pectoris, or unstable hypertension; high risk thrombosis; hemorrhagic, embolic, or thrombotic stroke; deep venous thrombosis; or pulmonary or arterial embolism
    • Heart rate-corrected QT interval using Fridericia's method of ≥470 milliseconds for female participants and ≥450 milliseconds for male participants, except for right or left bundle branch block
    • Severe pulmonary fibrosis as defined by severe hypoxia, evidence of right-sided heart failure, and radiographic pulmonary fibrosis >50%
    • Severe pulmonary hypertension as defined by severe symptoms associated with hypoxia, right-sided heart failure, and oxygen indicated;
  6. History of hepatobiliary disorders, as defined by:

    • Serum aspartate aminotransferase (AST) >2.5 × upper limit of normal (ULN) (unless due to hemolysis and/or hepatic iron deposition) and alanine aminotransferase (ALT) >2.5 × ULN (unless due to hepatic iron deposition)
    • Serum bilirubin >ULN, if the elevation is associated with clinically symptomatic choledocholithiasis, cholecystitis, biliary obstruction, or hepatocellular disease;
  7. Renal dysfunction, as defined by an estimated glomerular filtration rate (eGFR) <45 milliliters per minute (mL/min)/1.73 m^2;

  8. Active infection requiring systemic antimicrobial therapy at the time of providing informed consent. If antimicrobial therapy is required during the Screening Period, screening procedures should not be performed while antimicrobial therapy is being administered, and the last dose of antimicrobial therapy must be administered ≥7 days before administration of the first dose of study drug;

  9. Major surgery within 12 weeks before administration of the first dose of study drug. Participants must have completely recovered from any previous surgery before administration of the first dose of study drug;

  10. For any malignancy except MDS: History of malignancy (active or treated) ≤5 years before providing informed consent for nonmelanomatous skin cancer in situ, cervical carcinoma in situ, or breast carcinoma in situ;

  11. Positive test for hepatitis C virus (HCV) antibody (Ab) with evidence of active HCV infection, or positive test for hepatitis B surface antigen (HBsAg);

  12. Positive test for HIV-1 Ab or HIV-2 Ab;

  13. Absolute neutrophil count (ANC) <500/microliter (μL) (0.5 × 10^9/L);

  14. Platelet count ≤75,000/μL during Screening (75 × 10^9/L) platelet transfusions within 28 days before Screening or during Screening;

  15. Nonfasting triglyceride concentration >500 mg/dL;

  16. Receiving inhibitors of P-glycoprotein (P-gp) that have not been stopped for ≥5 days or a time frame equivalent to 5 half-lives (whichever is longer) before administration of the first dose of study drug;

  17. Current enrollment or past participation (within 4 weeks or a time frame equivalent to 5 half-lives of the investigational study drug before administration of the first dose of study drug or, whichever is longer) in any other clinical study involving an investigational treatment or device;

  18. Known allergy to tebapivat or its excipients;

  19. Pregnant or breastfeeding;

  20. Any medical, hematologic, psychological, or behavioral condition(s) or prior or current therapy that, in the opinion of the Investigator, may confer an unacceptable risk to participating in the study and/or could confound the interpretation of the study data. Also excluded are:

    • Participants who are institutionalized by regulatory or court order;
    • Participants with any condition(s) that could create undue influence (including but not limited to incarceration, involuntary psychiatric confinement, and financial or familial affiliation with the Investigator or Sponsor).

Phase 2b

  1. Known history of AML;

  2. Secondary MDS, defined as MDS that is known to have arisen as a result of chemical injury or treatment with chemotherapy and/or radiation for other diseases;

  3. Prior exposure to a pyruvate kinase activator, including exposure to tebapivat in the Phase 2a part of this study, and/or disease-modifying agents for underlying MDS:

    • Imetelstat; at the Investigator's discretion and in consultation with the Medical Monitor, participants who received ≤2 doses of imetelstat may not be excluded, provided that their last dose was ≥8 weeks before administration of the first dose of study drug
    • IMiDs such as lenalidomide; at the Investigator's discretion and in consultation with the Medical Monitor, participants who received ≤1 week of treatment with IMiDs may not be excluded, provided their last dose was ≥8 weeks before administration of the first dose of study drug
    • HMAs; at the Investigator's discretion and in consultation with the Medical Monitor, participants who received ≤2 doses of HMAs may not be excluded, provided that their last dose was ≥8 weeks before administration of the first dose of study drug
    • IDH inhibitors
    • IST
    • Allogeneic or autologous stem cell transplant;
  4. Currently receiving treatment with ESAs±G-CSF and/or luspatercept. Treatment with ESAs±G-CSF must have been stopped for ≥28 days before administration of the first dose of study drug; treatment with luspatercept must have been stopped for ≥65 days before administration of the first dose of study drug;

  5. History of active and/or uncontrolled cardiac or pulmonary disease within 6 months before providing informed consent, including but not limited to:

    • New York Heart Association Class III or IV heart failure or clinically significant dysrhythmia
    • Myocardial infarction, unstable angina pectoris, or unstable hypertension; high risk thrombosis; hemorrhagic, embolic, or thrombotic stroke; deep venous thrombosis; or pulmonary or arterial embolism
    • Heart rate-corrected QT interval using Fridericia's method of ≥470 milliseconds for female participants and ≥450 milliseconds for male participants, except for right or left bundle branch block
    • Severe pulmonary fibrosis as defined by severe hypoxia, evidence of right-sided heart failure, and radiographic pulmonary fibrosis >50%
    • Severe pulmonary hypertension as defined by severe symptoms associated with hypoxia, right-sided heart failure, and oxygen indicated
  6. History of hepatobiliary disorders, as defined by:

    • Serum AST >2.5 × ULN (unless due to hemolysis and/or hepatic iron deposition) and ALT >2.5 × ULN (unless due to hepatic iron deposition)
    • Serum bilirubin >ULN, if the elevation is associated with clinically symptomatic choledocholithiasis, cholecystitis, biliary obstruction, or hepatocellular disease
  7. Renal dysfunction, as defined by an eGFR <45 mL/min/1.73 m^2;

  8. Active infection requiring systemic antimicrobial therapy at the time of providing informed consent. If antimicrobial therapy is required during the Screening Period, screening procedures should not be performed while antimicrobial therapy is being administered, and the last dose of antimicrobial therapy must be administered ≥7 days before administration of the first dose of study drug;

  9. Major surgery within 12 weeks before administration of the first dose of study drug. Participants must have completely recovered from any previous surgery before administration of the first dose of study drug;

  10. For any malignancy except MDS: History of malignancy (active or treated) ≤5 years before providing informed consent, except for nonmelanomatous skin cancer in situ, cervical carcinoma in situ, or breast carcinoma in situ.;

  11. Positive test for HCV Ab with evidence of active HCV infection, or positive test for HBsAg;

  12. Positive test for HIV-1 Ab or HIV-2 Ab;

  13. ANC <500/μL (0.5 × 10^9/L);

  14. Platelet count < 75,000/μL (75 × 10^9 /L) during Screening; platelet transfusions within 28 days before Screening or during Screening;

  15. Nonfasting triglyceride concentration >500 mg/dL;

  16. Receiving inhibitors of P-gp that have not been stopped for ≥5 days or a time frame equivalent to 5 half-lives (whichever is longer) beforeadministration of the first dose of study drug;

  17. Current enrollment or past participation (within 4 weeks or a time frame equivalent to 5 half-lives of the investigational study drug before administration of the first dose of study drug or, whichever is longer) in any other clinical study involving an investigational treatment or device;

  18. Known allergy to tebapivat or its excipients;

  19. Pregnant or breastfeeding;

  20. Any medical, hematologic, psychological, or behavioral condition(s) or prior or current therapy that, in the opinion of the Investigator, may confer an unacceptable risk to participating in the study and/or could confound the interpretation of the study data. Also excluded are:

    • Participants who are institutionalized by regulatory or court order
    • Participants with any condition(s) that could create undue influence (including but not limited to incarceration, involuntary psychiatric confinement, and financial or familial affiliation with the Investigator or Sponsor).
  21. Known clinically significant anemia due to iron, vitamin B12, or folate deficiencies, autoimmune or hereditary hemolytic anemia, hypothyroidism, or any type of known clinically significant bleeding.

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: Core Period: Phase 2a - Tebapivat 5 mg

Participants will receive 5 milligrams (mg) tebapivat orally, once daily for up to 16 weeks. At the discretion of the investigator, participants who complete the Core Period will be eligible to receive the same dose in Extension Period for up to 156 weeks.

Tebapivat Tablet

Andre navne:
  • AG-946
Eksperimentel: Core Period: Phase 2b - Tebapivat 10 mg

Participants will receive 10 mg tebapivat, orally, once daily for up to 24 weeks. At the discretion of the investigator, participants who complete the Core Period will be eligible to receive the same dose in Extension Period for up to 156 weeks.

Tebapivat Tablet

Andre navne:
  • AG-946
Eksperimentel: Core Period: Phase 2b - Tebapivat 15 mg

Participants will receive 15 mg tebapivat, orally, once daily for up to 24 weeks. At the discretion of the investigator, participants who complete the Core Period will be eligible to receive the same dose in Extension Period for up to 156 weeks.

Tebapivat Tablet

Andre navne:
  • AG-946
Eksperimentel: Core Period: Phase 2b - Tebapivat 20 mg

Participants will receive 20 mg tebapivat, orally, once daily for up to 24 weeks. At the discretion of the investigator, participants who complete the Core Period will be eligible to receive the same dose in Extension Period for up to 156 weeks.

Tebapivat Tablet

Andre navne:
  • AG-946

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Phase 2a: Proportion of Participants With Hemoglobin (Hb) Response
Tidsramme: Baseline, Week 8 through Week 16

Hb response is defined as a ≥1.5-grams per deciliter (g/dL) increase from baseline in the average Hb concentration from Week 8 through Week 16.

Baseline, Week 8 through Week 16
Phase 2a: Proportion of Participants With Transfusion Independence During the Core Period
Tidsramme: Up to 16 weeks

Transfusion Independence is defined as transfusion-free for ≥8 consecutive weeks during the Core Period (participants With Low Transfusion Burden [LTB] only).

Up to 16 weeks
Phase 2b: Proportion of Participants With Transfusion Independence
Tidsramme: Up to 24 weeks

Transfusion independence, defined as transfusion-free for ≥8 consecutive weeks (TI8) during the Core Period.

Up to 24 weeks

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Fase 2a: Ændring fra baseline i Hb-koncentration i løbet af kerneperioden
Tidsramme: Baseline op til 16 uger
Baseline op til 16 uger
Fase 2a: Ændring fra baseline i totalt transfunderede røde blodlegemer (RBC) enheder i løbet af kerneperioden
Tidsramme: Baseline op til 16 uger
Baseline op til 16 uger
Fase 2a: Fuldblodskoncentrationer af 2,3-diphosphoglycerat (2,3-DPG) i kerneperioden
Tidsramme: Dag 1 og uge 8 (≤60 minutter før dosis og 0,5, 1, 2, 3, 4, 6 og 8 timer efter dosis) og i uge 2, 4, 12 og 16 (≤60 minutter før dosis)
Dag 1 og uge 8 (≤60 minutter før dosis og 0,5, 1, 2, 3, 4, 6 og 8 timer efter dosis) og i uge 2, 4, 12 og 16 (≤60 minutter før dosis)
Fase 2a: Fuldblodskoncentrationer af adenosintriphosphat (ATP) i kerneperioden
Tidsramme: Dag 1 og uge 8 (≤60 minutter før dosis og 0,5, 1, 2, 3, 4, 6 og 8 timer efter dosis) og i uge 2, 4, 12 og 16 (≤60 minutter før dosis)
Dag 1 og uge 8 (≤60 minutter før dosis og 0,5, 1, 2, 3, 4, 6 og 8 timer efter dosis) og i uge 2, 4, 12 og 16 (≤60 minutter før dosis)
Fase 2b: Ændring fra baseline i totalt transfunderede RBC-enheder fra uge 8 til uge 24
Tidsramme: Baseline, uge ​​8 til og med uge 24
Baseline, uge ​​8 til og med uge 24
Fase 2a: Andel af deltagere med laboratorieabnormiteter i kerneperioden
Tidsramme: Op til 16 uger
Op til 16 uger
Fase 2a: Andel af deltagere med ≥1,5-g/dL stigning fra baseline i Hb-koncentrationen ved ≥2 på hinanden følgende tidspunkter fra uge 8 til uge 16
Tidsramme: Baseline, uge ​​8 til og med uge 16
Baseline, uge ​​8 til og med uge 16
Fase 2a: Andel af deltagere med ≥50 % reduktion i totale transfunderede RBC-enheder i ≥8 på hinanden følgende uger i kerneperioden sammenlignet med baseline
Tidsramme: Baseline op til 16 uger
Baseline op til 16 uger
Fase 2a: Plasmakoncentration af Tebapivat i kerneperioden
Tidsramme: Dag 1 og uge 8 (≤60 minutter før dosis og 0,5, 1, 2, 3, 4, 6 og 8 timer efter dosis) og i uge 2, 4, 12 og 16 (≤60 minutter før dosis)
Dag 1 og uge 8 (≤60 minutter før dosis og 0,5, 1, 2, 3, 4, 6 og 8 timer efter dosis) og i uge 2, 4, 12 og 16 (≤60 minutter før dosis)
Fase 2a: Maksimal (peak) koncentration (Cmax) af Tebapivat i kerneperioden
Tidsramme: Dag 1 og uge 8 (≤60 minutter før dosis og 0,5, 1, 2, 3, 4, 6 og 8 timer efter dosis) og i uge 2, 4, 12 og 16 (≤60 minutter før dosis)
Dag 1 og uge 8 (≤60 minutter før dosis og 0,5, 1, 2, 3, 4, 6 og 8 timer efter dosis) og i uge 2, 4, 12 og 16 (≤60 minutter før dosis)
Fase 2a: Tid til Cmax (tmax) af Tebapivat i kerneperioden
Tidsramme: Dag 1 og uge 8 (≤60 minutter før dosis og 0,5, 1, 2, 3, 4, 6 og 8 timer efter dosis) og i uge 2, 4, 12 og 16 (≤60 minutter før dosis)
Dag 1 og uge 8 (≤60 minutter før dosis og 0,5, 1, 2, 3, 4, 6 og 8 timer efter dosis) og i uge 2, 4, 12 og 16 (≤60 minutter før dosis)
Fase 2a: Areal under koncentrationstidskurven fra 0 til t timer (AUC0-t) af Tebapivat i kerneperioden
Tidsramme: Dag 1 og uge 8 (≤60 minutter før dosis og 0,5, 1, 2, 3, 4, 6 og 8 timer efter dosis) og i uge 2, 4, 12 og 16 (≤60 minutter før dosis)
Dag 1 og uge 8 (≤60 minutter før dosis og 0,5, 1, 2, 3, 4, 6 og 8 timer efter dosis) og i uge 2, 4, 12 og 16 (≤60 minutter før dosis)
Fase 2a: Areal under koncentration-tidskurven fra 0 til slutningen af ​​doseringsintervallet (AUC0-τ) af Tebapivat i kerneperioden
Tidsramme: Dag 1 og uge 8 (≤60 minutter før dosis og 0,5, 1, 2, 3, 4, 6 og 8 timer efter dosis) og i uge 2, 4, 12 og 16 (≤60 minutter før dosis)
Dag 1 og uge 8 (≤60 minutter før dosis og 0,5, 1, 2, 3, 4, 6 og 8 timer efter dosis) og i uge 2, 4, 12 og 16 (≤60 minutter før dosis)
Fase 2a: Tilsyneladende terminal eliminering Halveringstid (t½) af Tebapivat i kerneperioden
Tidsramme: Dag 1 og uge 8 (≤60 minutter før dosis og 0,5, 1, 2, 3, 4, 6 og 8 timer efter dosis) og i uge 2, 4, 12 og 16 (≤60 minutter før dosis)
Dag 1 og uge 8 (≤60 minutter før dosis og 0,5, 1, 2, 3, 4, 6 og 8 timer efter dosis) og i uge 2, 4, 12 og 16 (≤60 minutter før dosis)
Fase 2b: Andel af deltagere med laboratorieabnormiteter i kerneperioden
Tidsramme: Op til 24 uger
Op til 24 uger
Fase 2b: Ændring fra baseline i Hb-koncentration i løbet af kerneperioden
Tidsramme: Baseline op til 24 uger
Baseline op til 24 uger
Fase 2b: Andel af deltagere med ≥50 % reduktion i totale transfunderede RBC-enheder i ≥8 på hinanden følgende uger i kerneperioden sammenlignet med baseline
Tidsramme: Baseline op til 24 uger
Baseline op til 24 uger
Fase 2b: Tid til første TI8 i kerneperioden
Tidsramme: Baseline op til 24 uger
Baseline op til 24 uger
Fase 2b: Andel af deltagere, der bliver transfusionsfrie i ≥12 sammenhængende uger (TI12) i kerneperioden
Tidsramme: Op til 24 uger
Op til 24 uger
Fase 2b: Andel af deltagere med ≥50 % reduktion i totale transfunderede RBC-enheder i ≥12 på hinanden følgende uger i løbet af kerneperioden sammenlignet med baseline
Tidsramme: Baseline op til 24 uger
Baseline op til 24 uger
Fase 2b: Tid til første TI12 i kerneperioden
Tidsramme: Baseline op til 24 uger
Baseline op til 24 uger
Fase 2b: Plasmakoncentration af Tebapivat i kerneperioden
Tidsramme: Foruddosis og flere tidspunkter efter dosis fra dag 1 op til uge 20
Foruddosis og flere tidspunkter efter dosis fra dag 1 op til uge 20
Fase 2b: Maksimal (peak) koncentration (Cmax) af Tebapivat i kerneperioden
Tidsramme: Foruddosis og flere tidspunkter efter dosis fra dag 1 op til uge 20
Foruddosis og flere tidspunkter efter dosis fra dag 1 op til uge 20
Fase 2b: Tid til Cmax (tmax) af Tebapivat i kerneperioden
Tidsramme: Foruddosis og flere tidspunkter efter dosis fra dag 1 op til uge 20
Foruddosis og flere tidspunkter efter dosis fra dag 1 op til uge 20
Fase 2b: Areal under koncentrationstidskurven fra 0 til t timer (AUC0-t) af Tebapivat i kerneperioden
Tidsramme: Foruddosis og flere tidspunkter efter dosis fra dag 1 op til uge 20
Foruddosis og flere tidspunkter efter dosis fra dag 1 op til uge 20
Fase 2b: Areal under koncentration-tidskurven fra 0 til slutningen af ​​doseringsintervallet (AUC0-τ) af Tebapivat i kerneperioden
Tidsramme: Foruddosis og flere tidspunkter efter dosis fra dag 1 op til uge 20
Foruddosis og flere tidspunkter efter dosis fra dag 1 op til uge 20
Fase 2b: Tilsyneladende terminal eliminering Halveringstid (t½) af Tebapivat i kerneperioden
Tidsramme: Foruddosis og flere tidspunkter efter dosis fra dag 1 op til uge 20
Foruddosis og flere tidspunkter efter dosis fra dag 1 op til uge 20
Fase 2b: Fuldblodskoncentrationer af 2,3-diphosphoglycerat (2,3-DPG) i kerneperioden
Tidsramme: Foruddosis og flere tidspunkter efter dosis fra dag 1 op til uge 20
Foruddosis og flere tidspunkter efter dosis fra dag 1 op til uge 20
Fase 2b: Fuldblodskoncentrationer af adenosintriphosphat (ATP) i kerneperioden
Tidsramme: Foruddosis og flere tidspunkter efter dosis fra dag 1 op til uge 20
Foruddosis og flere tidspunkter efter dosis fra dag 1 op til uge 20
Phase 2a: Proportion of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), and AEs Leading to Discontinuation During the Core Period
Tidsramme: Up to 16 weeks

An AE is any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product that does not necessarily have a causal relationship with this treatment. An SAE is any AE or suspected adverse reaction that results in death, is immediately life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant incapacity or substantial disruption of the ability to conduct normal life functions, results in congenital anomaly/birth defect, or is considered an important medical event.

Up to 16 weeks
Phase 2a: Proportion of Participants With Hb 1.0+ Response
Tidsramme: Baseline, Week 8 through Week 16

Hb 1.0+ response is defined as a ≥1.0-g/dL increase from baseline in the average Hb concentration from Week 8 through Week 16

Baseline, Week 8 through Week 16
Phase 2b: Proportion of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), and AEs Leading to Discontinuation During the Core Period
Tidsramme: Up to 24 weeks

An AE is any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product that does not necessarily have a causal relationship with this treatment. An SAE is any AE or suspected adverse reaction that results in death, is immediately life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant incapacity or substantial disruption of the ability to conduct normal life functions, results in congenital anomaly/birth defect, or is considered an important medical event.

Up to 24 weeks
Phase 2b: Duration of Transfusion Independence (TI)
Tidsramme: Baseline up to 24 weeks

The duration of TI will be calculated as the number of days in the longest transfusion-free period starting on or after the start of study treatment through the end of the Core Period.

Baseline up to 24 weeks

Samarbejdspartnere og efterforskere

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

Sponsor

Efterforskere

  • Studiestol: Medical Medical Affairs, Agios Pharmaceuticals, Inc.

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)

7. november 2022

Primær færdiggørelse (Faktiske)

17. marts 2026

Studieafslutning (Anslået)

1. marts 2029

Datoer for studieregistrering

Først indsendt

26. juli 2022

Først indsendt, der opfyldte QC-kriterier

4. august 2022

Først opslået (Faktiske)

5. august 2022

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

28. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

25. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • AG946-C-002
  • 2022-500609-42-00 (Anden identifikator: EU-CTR)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ja

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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