En undersøgelse til evaluering af farmakokinetik og sikkerhed af XEMBIFY versus Gamunex-C hos deltagere med kronisk inflammatorisk demyeliniserende polyradikuloneuropati (XPERT)
Et åbent, multicenterstudie til evaluering af farmakokinetik og sikkerhed af XEMBIFY versus Gamunex-C hos deltagere med kronisk inflammatorisk demyeliniserende polyradikuloneuropati
The main goal of the study is to find out whether XEMBIFY, given once a week under the skin, provides similar levels of immunoglobulin G in the blood over time as Gamunex-C, which is given into a vein once every 3 weeks in people with CIDP.
Participants with CIDP will first have up to 28 days of screening to make sure they can join the study. Those who qualify will then start a 19-week treatment period with Gamunex-C. During this period, they will receive Gamunex-C through a vein once every 3 weeks, for a total of 7 doses. Approximately, one week after their last Gamunex-C dose, they will begin a 16-week treatment period with XEMBIFY under the skin, once a week for a total of 16 doses. Blood samples will be collected during both treatment periods to measure IgG level in the blood.
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Fase
Fase
- Fase 3
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Sarah Duggan
- Telefonnummer: +353 87 429 2411
- E-mail: sarah.duggan@grifols.com
Undersøgelse Kontakt Backup
- Navn: Olga Titova
- E-mail: olga.titova@grifols.com
Studiesteder
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California
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Rancho Mirage, California, Forenede Stater, 92270
- Rekruttering
- GC2402 Study Site 104
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Kontakt:
- Sarah Duggan
- E-mail: sarah.duggan@grifols.com
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Florida
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Coral Springs, Florida, Forenede Stater, 33155
- Rekruttering
- GC2402 Study Site 109
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Kontakt:
- Sarah Duggan
- E-mail: sarah.duggan@grifols.com
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Miami, Florida, Forenede Stater, 33067
- Trukket tilbage
- GC2402 Study Site 105
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Port Charlotte, Florida, Forenede Stater, 33952
- Rekruttering
- GC2402 Study Site 103
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Kontakt:
- Sarah Duggan
- E-mail: sarah.duggan@grifols.com
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New York
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New York, New York, Forenede Stater, 10003
- Rekruttering
- GC2402 Study Site 110
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Kontakt:
- Sarah Duggan
- E-mail: sarah.duggan@grifols.com
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North Carolina
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Fayetteville, North Carolina, Forenede Stater, 28304
- Rekruttering
- GC2402 Study Site 114
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Kontakt:
- Sarah Duggan
- E-mail: sarah.duggan@grifols.com
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Tennessee
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Cordova, Tennessee, Forenede Stater, 38018
- Rekruttering
- GC2402 Study Site 111
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Kontakt:
- Sarah Duggan
- E-mail: sarah.duggan@grifols.com
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Texas
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Houston, Texas, Forenede Stater, 77074
- Rekruttering
- GC2402 Study Site 115
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Kontakt:
- Sarah Duggan
- E-mail: sarah.duggan@grifols.com
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Sherman, Texas, Forenede Stater, 75092
- Rekruttering
- GC2402 Study Site 106
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Kontakt:
- Sarah Duggan
- E-mail: sarah.duggan@grifols.com
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Bydgoszcz, Polen, 85-065
- Rekruttering
- GC2402 Study Site 206
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Kontakt:
- Sarah Duggan
- E-mail: sarah.duggan@grifols.com
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Katowice, Polen, 40-123
- Rekruttering
- GC2402 Study Site 203
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Kontakt:
- Sarah Duggan
- E-mail: sarah.duggan@grifols.com
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Krakow, Polen, 31-870
- Rekruttering
- GC2402 Study Site 201
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Kontakt:
- Sarah Duggan
- E-mail: sarah.duggan@grifols.com
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Wroclaw, Polen, 50-417
- Rekruttering
- GC2402 Study Site 205
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Kontakt:
- Sarah Duggan
- E-mail: sarah.duggan@grifols.com
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Wroclaw, Polen, 54-239
- Rekruttering
- GC2402 Study Site 207
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Kontakt:
- Sarah Duggan
- E-mail: sarah.duggan@grifols.com
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Târgu Mureş, Rumænien, 540140
- Rekruttering
- GC2402 Study Site 302
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Kontakt:
- Sarah Duggan
- E-mail: sarah.duggan@grifols.com
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Hradec Králové, Tjekkiet, 50002
- Rekruttering
- GC2402 Study Site 401
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Kontakt:
- Sarah Duggan
- E-mail: sarah.duggan@grifols.com
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Have typical CIDP or a CIDP variant according to the 2021 criteria established by the European Academy of Neurology/Peripheral Nerve Society (EAN/PNS). The level of diagnostic certainty may be CIDP or possible CIDP.
- Participants ≤ 90 kg in body weight and requiring an IGIV dose equivalent to 0.3-1.0 g/kg every three weeks (Q3W) inclusive and between 20-90 g of IGIV Q3W inclusive.
- Clinically stable on IGIV, defined as no recent change in CIDP treatment or experienced a CIDP relapse requiring treatment, within 12 weeks prior to Screening and through baseline visit.
Exclusion Criteria:
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Diagnosis of polyneuropathy of any other cause (including multifocal motor neuropathy; monoclonal gammopathy of uncertain significance with anti-myelin-associated glycoprotein IgM antibodies; hereditary demyelinating neuropathy; polyneuropathy, organomegaly, endocrinopathy, monoclonal protein and skin changes syndrome; lumbosacral radiculoplexus neuropathy; polyneuropathy associated with diabetes mellitus; polyneuropathy associated with systemic illnesses; or drug or toxin induced polyneuropathy).
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Severe diseases and conditions that are likely to interfere with evaluation of the study product or satisfactory conduct of the study such as the following:
- current malignancy or history of allogeneic bone marrow/stem cell transplant,
- cardiac insufficiency (New York Heart Association classes III/IV), cardiomyopathy, significant cardiac arrhythmia requiring treatment, unstable or advanced ischemic heart disease, congestive heart failure or severe hypertension
- chronic kidney disease stage IV or V
- an acquired medical condition that is known to cause secondary immune deficiency, such as chronic lymphocytic leukemia, lymphoma, multiple myeloma, chronic or recurrent neutropenia (absolute neutrophil count less than 1000/µL [1.0 × 10^9/L]), or human immunodeficiency virus (HIV) infection/acquired immune deficiency syndrome
- known bleeding disorders
- severe skin disease at the planned injection sites
- alcohol, drug or medication abuse, or
- other disorders where IGSC therapy would be contraindicated during the study.
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History of a thrombotic episode (including deep vein thrombosis, known hypercoagulable state, myocardial infarction, pulmonary embolism, or thromboembolic stroke)
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Known allergic or other severe adverse reactions to blood products including intolerability to previous IVIG up to 1 g/kg Q3W, history of hemolysis after IVIG infusion, aseptic meningitis, recurrent severe headache, hypersensitivity, or severe generalized skin reaction
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Has had a CIDP relapse requiring treatment modification within 12 weeks prior to Screening or between Screening and baseline visit
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Treatment with any of the following:
- alemtuzumab or rituximab within 12 months of Screening.
- cyclophosphamide, interferon, tumor necrosis factor-alpha inhibitors, fingolimod, or fragment crystallizable receptor (FCRn) blockers, within six months of Screening
- plasma exchange or complement inhibitors within three months of Screening.
- changes to the following treatment within three months of Screening: methotrexate, azathioprine, or mycophenolate or any other immunosuppressants within six months of Screening
- participants on corticosteroids ≥ 20 mg/day prednisone equivalent. Participants on low dose corticosteroids (< 20 mg/day prednisone equivalent) may be enrolled if dose has been stable over the last three months prior to Screening and the dosage is not likely to be adjusted during the duration of the trial (inhaled or topical corticosteroids are allowed).
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Participants requiring an IGIV dose equivalent to:
- greater than 1.0 g/kg every three weeks (Q3W) or
- less than 0.3 g/kg Q3W or
- greater than 90 g of IGIV Q3W or
- less than 20 g of IGIV Q3W.
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Known IgA deficient patients with known antibodies against IgA
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Known significant proteinuria (≥ 3+ or known urinary protein loss >1 g/24 hours or nephrotic syndrome), acute renal failure, are on dialysis, and/or have severe renal impairment on Screening laboratory testing (blood urea nitrogen [BUN] > 3 times the upper limit of normal [ULN] or creatinine more than 1.5 times ULN).
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Screening values of aspartate aminotransferase (AST) or alanine aminotransferase (ALT) levels exceeding ≥ 2.5 times the ULN for the expected normal range for the testing laboratory.
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Hemoglobin levels < 10 g/dL at Screening.
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Current administration of anti-coagulation therapy which would make IGSC administration inadvisable per investigator judgement (i.e., vitamin K antagonists, nonvitamin K antagonist oral anticoagulants [e.g., dabigatran etexilate targeting Factor IIa, rivaroxaban, edoxaban, and apixaban targeting Factor Xa], and parenteral anticoagulants [e.g., fondaparinux]).
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Known hyperviscosity syndrome.
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Known HIV, chronic hepatitis B virus (HBV), or chronic hepatitis C virus (HCV) infection.
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Participation in another clinical trial within 30 days or if known, 5 half-lives of the interventional product prior to Screening (observational studies without investigative treatments [non-interventional] are permitted).
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Ikke-randomiseret
- Interventionel model: Sekventiel tildeling
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Eksperimentel: Gamunex-C (IGIV-C 10%)
During the IV Phase, participants will receive Gamunex-C 1 g/kg, up to a maximum dose of 90 g, every 3 weeks for a total of seven doses. Gamunex-C may be administered over 1 day or divided into 2 consecutive daily doses of 0.5 g/kg each, except for dose #6, which will be administered as a single 1g/kg dose. |
Immune Globulin Injection (Human), 10% Caprylate/Chromatography Purified (IGIV-C 10%) |
|
Eksperimentel: Xembify (IGSC 20%)
Approximately 7 to 10 days after the last Gamunex-C dose, participants will enter a 16-week SC Phase, where they will receive XEMBIFY 0.456 g/kg once weekly for a total of 16 doses, up to a maximum dose of 41 g. |
Immune Globulin Subcutaneous (Human), 20% Caprylate/Chromatography Purified (IGSC 20%) |
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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AUC i IV-fasen: Steady-state areal under koncentration-tid-kurven (AUC) for total IgG over en 3-ugers intravenøs doseringsinterval (τ) (dvs. AUC(0-21 dage) hos deltagere med CIDP
Tidsramme: Uge 1 til 19 af IV-fasen
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Uge 1 til 19 af IV-fasen
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AUC i SC-fasen: AUC i steady-state for total IgG over en ugentlig SC-dosering interval (τ) (dvs. AUC(0-7 dage)) hos deltagere med CIDP
Tidsramme: Uge 1 til 16 af SC-fasen
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Uge 1 til 16 af SC-fasen
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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Steady-state gennemsnitlig trough (præ-dosis) koncentration af total IgG efter IV administration af Gamunex-C 10% hver 3. uge og SC administration af Xembify 20% en gang ugentligt
Tidsramme: Dag 1 gennem afslutningsbesøg (cirka 35 uger)
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Dag 1 gennem afslutningsbesøg (cirka 35 uger)
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
- Sygdomme i nervesystemet
- Patologiske processer
- Neuromuskulære sygdomme
- Kronisk sygdom
- Sygdomsegenskaber
- Autoimmune sygdomme
- Sygdomme i immunsystemet
- Sygdomme i det perifere nervesystem
- Autoimmune sygdomme i nervesystemet
- Demyeliniserende sygdomme
- Polyneuropatier
- Polyradiculoneuropati
- Patologiske tilstande, tegn og symptomer
- Polyradiculoneuropati, kronisk inflammatorisk demyeliniserende
- Hizentra
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- GC2402
Plan for individuelle deltagerdata (IPD)
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