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Faculty","Trabzon","61080",{"type":33,"coordinates":602},[603,604],39.72694,41.005,{"lat":604,"lon":603},{"type":607,"investigatorFullName":19,"investigatorTitle":19,"investigatorAffiliation":19,"oldNameTitle":19,"oldOrganization":19},"SPONSOR","100357802","phase-3-study-of-the-efficacy-and-safety-pf-06741086-in-adult-and-teenage-participants-with-severe-hemophilia-a-or-moderately-severe-to-severe-hemophilia-b-100357802",true,"NCT03938792","Study of the Efficacy and Safety PF-06741086 in Adult and Teenage Participants With Severe Hemophilia A or Moderately Severe to Severe Hemophilia B","An Open-Label Study in Adolescent and Adult Severe (Coagulation Factor Activity \u003C1%) Hemophilia A Participants With or Without Inhibitors or Moderately Severe to Severe Hemophilia B Participants (Coagulation Factor Activity ≤2%) With or Without Inhibitors Comparing Standard Treatment to PF-06741086 Prophylaxis","Inclusion Criteria\n\n* Participants with a diagnosis of severe hemophilia A or moderately severe to severe hemophilia B with a minimum weight of 35 kg at screening.\n* Participant or legally authorized representative, or participant's caregiver capable of giving signed informed consent (or minor assent, when applicable).\n\nParticipants who are enrolled into the Non-Inhibitor Cohort must also meet the following criteria:\n\n* No detectable or documented history of inhibitors\n* Participants on FVIII\u002FFIX routine prophylaxis who have demonstrated at least 80% compliance with scheduled prophylaxis regimen during 6 months prior to enrollment and are willing to continue to receive routine prophylaxis treatment with FVIII\u002FFIX replacement during the Observational Phase.\n* Participants with on-demand treatment regimen with ≥6 acute bleeding episodes (spontaneous or traumatic) that required coagulation factor infusion during the 6 months period prior to enrollment and willing to continue to receive on demand treatment during the Observational Phase.\n\nParticipants who are enrolled into the Inhibitor Cohort must also meet the following criteria:\n\n* Documentation of current high titer inhibitor (≥5 BU\u002FmL) or current low titer inhibitor (\\\u003C5 BU\u002FmL) refractory to FVIII or FIX replacement and with FVIII or FIX recovery \\\u003C60% of expected within previous 6 months prior to enrolment into the Observational Phase\n* Hemophilia A participants with on-demand treatment regimen with ≥6 bleeding episodes or hemophilia B participants with ≥4 bleeding episodes (spontaneous or traumatic) necessitating treatment with bypass factor during the 6 months prior to Enrollment into Observational Phase and willing to continue to receive on-demand treatment during the Observational Phase.\n* Participants who have documented inhibitors while on factor-replacement therapy but who do not meet the quantitative inhibitor criteria described in the prior bullet at the time of Screening (eg, participant with a previously documented high-titer inhibitor (≥5 BU\u002FmL) and whose condition precludes re-challenge with FVIII or FIX replacement) may be considered for eligibility on a case-by-case basis with prior agreement from the Pfizer Medical Monitor\n* Participants who meet the bleeding criteria noted above and who are on routine prophylaxis (defined as treatment by IV injection of bypass factor to prevent bleeding) and have demonstrated at least 80% compliance with scheduled prophylaxis regimen during the 6 months prior to enrollment, may be considered for eligibility on a case-by-case basis with discussion and agreement from the Pfizer medical monitor.\n\nExclusion Criteria\n\n* Previous or current treatment for and\u002For history of coronary artery diseases, venous or arterial thrombosis or ischemic disease\n* Known planned surgical procedure during the planned study period.\n* Known hemostatic defect other than hemophilia A or B.\n* Abnormal renal or hepatic function\n* Current unstable liver or biliary disease\n* Abnormal hematologic parameters\n* Other acute or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with study participation or investigational product administration or may interfere with the interpretation of study results and, in the judgment of the investigator,\n* Current routine prophylaxis with bypassing agent or non-coagulation non-factor- replacement therapy, or any previous treatment with a gene therapy product for treatment of hemophilia (participants treated with prophylaxis using bypassing agents or who had prior treatment with non-factor products may be considered on a case-by-case basis).\n* Regular, concomitant therapy with immunomodulatory drugs\n\n  \\- Ongoing or planned use of immune tolerance induction during the Observational Phase or Active Treatment Phase, or prophylaxis with FVIII or FIX replacement at any time after initiation of treatment with study intervention during the Active Treatment Phase\n* Previous exposure to PF 06741086 during participation in studies B7841002 and B7841003.\n* Participation in other studies involving investigational drug(s) or investigational vaccines within 30 days (or as determined by local requirements) or 5 half-lives prior to study entry and\u002For during study participation.\n* CD4 cell count ≤200\u002FuL if human immunodeficiency virus (HIV)-positive\n* Screening ECG that demonstrates clinically relevant abnormalities that may affect participant safety or interpretation of study results.\n* Individuals with hypersensitivity or an allergic reaction to hamster protein or other components of the study intervention.\n* Investigator site staff members directly involved in the conduct of the study and their family members, site staff members otherwise supervised by the investigator, or participants who are Pfizer employees, including their family members, directly involved in the conduct of the study.",false,"MALE","12 Years","74 Years",{"count":620,"type":621},188,"ACTUAL","INTERVENTIONAL",[624],"PHASE3","Treatment with PF-06741086 is anticipated to demonstrate a clinically relevant advantage and\u002For a major contribution to patient care in comparison to current methods of treatment for hemophilia A or B because it works differently than factor replacement products and will work in the presence of inhibitors. The potential for once weekly (QW) subcutaneous (SC) administration provides for treatment options in the absence of reliable vascular access, increased convenience and may enable better compliance. Combined, these qualities should result in a reduction of bleeding episodes.",[627,628],"Hemophilia A","Hemophilia B",[630,631,632,633,634,635,636,637,638,639,640,641,642,643,644,645,646,647,9,648,649],"Factor VIII","Factor IX","Inhibitors","Anti-Tissue Factor Pathway Inhibitor (TFPI)","Subcutaneous (sc)","Prophylaxis","On-Demand","BASIS","Inhibitor","SC","Subcutaneous","Injection","On demand","aTFPI","Anti-TFPI","Severe hemophilia","Severe bleeding","Hemophilia","PF 06741086","Marstacimab","COMPLETED","2026-07-23",{"date":653,"type":621},"2026-08-14",{"date":655,"type":621},"2020-03-09",{"date":657,"type":621},"2025-04-29",{"name":5,"class":6},62]