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Carfilzomib a Belatacept pro desenzibilizaci (ADAPT)

Měření dopadu karfilzomibu a belataceptu na alogenní desenzibilizaci u potenciálních příjemců transplantace ledviny (ITN089ST)

Some kidney transplant candidates have a very low chance of getting a kidney transplant because their immune systems are "highly sensitized" to most kidney donors. Being "highly sensitized" means that they will likely have to wait a long time (more than 5 years) before an acceptable donor is found for them or, they never receive a compatible donor, and die while on the kidney transplant waitlist.

The purpose of this study is to find out whether two drugs, carfilzomib (Kyprolis®),and belatacept (Nulojix®), can make these kidney transplant candidates less sensitized, and make it easier and quicker to find a kidney donor for them.

Přehled studie

Detailní popis

This study enrolled 21 eligible participants, 18 to 65 years of age, with end stage renal failure on dialysis who are on the waiting list for a deceased donor transplant with calculated panel reactive antibodies (cPRA) ≥99.9% or >98% (with >5 years of waiting time) or, those with cPRA >98% and an human leukocyte antigen (HLA)-incompatible approved living donor who have not received a transplant after 1 year in a paired kidney exchange program. The study will evaluate whether the study treatment is safe and can lower the participant's immune system's sensitization to kidney donors, making it easier to find a well-matched kidney for them.

Participants in the study were enrolled in two consecutive Cohorts. The total duration of participation in the study will be 76 weeks for Cohort 1 and 68 weeks for Cohort 2. Participants who undergo kidney transplantation while enrolled in the study will have 52 weeks of follow up post-transplant.

The duration of participation for living donors is one study visit. Their participation in the study ends upon completion of this study visit.

Typ studie

Intervenční

Zápis (Aktuální)

21

Fáze

  • Fáze 2
  • Fáze 1

Kontakty a umístění

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

Studijní místa

    • North Carolina
      • Durham, North Carolina, Spojené státy, 27710
        • Duke Transplant Center, Duke University Medical Center

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

18 let až 65 let (Dospělý, Starší dospělý)

Přijímá zdravé dobrovolníky

Ne

Pohlaví způsobilá ke studiu

Všechno

Popis

Inclusion Criteria:

Individuals who meet all of the following criteria are eligible for enrollment as study subjects-

  1. Subject must be able to understand and provide informed consent

  2. End stage renal disease (ESRD) on dialysis

  3. United Network for Organ Sharing (UNOS) listed for a kidney transplant with any one of the following:

    • Current calculated panel reactive antibodies (cPRA) ≥ 99.9 percent awaiting deceased donor transplant
    • Current cPRA >98 percent (with >5 years of waiting time) awaiting deceased donor transplant
    • Current cPRA >98 percent with Human Leukocyte Antigen (HLA)-incompatible approved living donor and has not received a transplant after 1 year in a kidney paired exchange program
  4. Evidence of established immunity to Epstein-Barr virus (EBV) as demonstrated by serologic testing

  5. Negative result of most recent tuberculosis (TB) testing or appropriately completed latent tuberculosis infection (LTBI) therapy.

    • Testing should be conducted using either a purified protein derivative (PPD) or interferon-gamma release assay (i.e. QuantiFERON-TB, T-SPOT.TB).

    • Negative results from tests performed within 12 months prior to study entry are acceptable in the absence of any intervening exposure to TB.

    • Subjects with a positive test result must have completed appropriate therapy for LTBI.

      • Note: LTBI treatment regimens should be among those endorsed by the Centers for Disease Control and Prevention (CDC), url: https://www.cdc.gov/tb/topic/treatment/ltbi.htm
  6. Negative Food and Drug Administration (FDA)-approved test for human immunodeficiency virus (HIV) diagnosis (at screening or as documented in medical record, up to 6 months prior to screening)

  7. Negative Hepatitis C antibody test at screening or as documented in medical record, up to 6 months prior to screening.

    --If there is a history of treated hepatitis C then documentation of two consecutive negative HCV quantitative ribonucleic acid (RNA) polymerase chain reaction (PCR) tests separated by at least 6 months is required. Untreated subjects with positive HCV antibody and a single negative HCV quantitative HCV RNA are eligible.

  8. Negative result for SARS-CoV-2 by an FDA-authorized molecular diagnostic test. Examples include, but are not limited to RT-PCR, LAMP, TMA, and qSTAR. Candidates with a history of recent COVID infection may proceed despite a positive result if they have had complete clinical recovery and it has been >/= 21 days since the initial diagnosis.

  9. Subjects must have an echocardiogram within the previous 1 year without any of the following findings:

    • severe left ventricular hypertrophy (LVH)
    • greater than mild LVH accompanied by diastolic dysfunction
    • left ventricular ejection fraction <40 percent
    • pulmonary hypertension defined as right ventricular systolic pressure >35 mm Hg or tricuspid regurgitant velocity >2.8 m/s
  10. Female subjects of reproductive potential must have a negative pregnancy test upon study entry

  11. All subjects of reproductive potential must agree to use contraception for the duration of the study

  12. Subjects must have current vaccinations or documented immunity to:

    • varicella (chickenpox)

    • measles

    • hepatitis B

    • pneumococcus

    • influenza, and

    • varicella zoster (if ≥ 50 years old).

      • Note: If subjects require administration of either live or killed vaccines to meet eligibility requirements, they must wait at least 2 weeks between vaccination and the baseline visit (i.e., at least 4 weeks before initiation of therapy)

Living Donor Inclusion Criteria:

Living donors must meet all of the following criteria to be eligible-

  1. Able to understand and provide informed consent for research
  2. Meets United Network for Organ Sharing (UNOS) requirements for kidney organ donation

Exclusion Criteria:

Individuals who meet any of these criteria are not eligible for enrollment as study subjects-

  1. Inability or unwillingness of a subject to give written informed consent or comply with study protocol

  2. Known active current or history of invasive fungal infection, non-tuberculous mycobacterial infection

  3. Hepatitis B surface antigen or core antibody positive

  4. Serious uncontrolled concomitant major organ disease, excluding kidney failure

  5. Chronic respiratory failure

  6. Uncontrolled systemic hypertension

  7. Previous non-kidney solid organ transplant or bone marrow transplant

  8. Any infection requiring hospitalization and intravenous (IV) therapy within 4 weeks of screening or oral therapy within 2 weeks of screening

  9. Primary or secondary immunodeficiency

  10. History of thromboembolism (except thrombosis of dialysis vascular access site)

  11. Subjects with myocardial infarction within 12 months of screening or cardiac dysrhythmias uncontrolled by medications

  12. History of plasma cell dyscrasia

  13. Known bleeding diathesis or coagulation abnormality

  14. History of active tuberculosis (TB) (even if treated)

  15. Malignancy within the last 5 years except treated basal and squamous cell cancer of the skin or treated cervical cancer in situ

  16. Women who are currently pregnant or nursing

  17. Alcohol, drug, or chemical abuse within 1 year

  18. Treatment with any investigational agent within 4 weeks (or 5 half-lives of investigational drug, whichever is longer) of screening

  19. Current treatment with other biological drug. If the potential subject receives standard of care antibody treatments for prophylaxis of COVID-19 (permitted in protocol), there must be a minimum interval of 2 weeks after this treatment and before initiation of the study therapy.

  20. Current treatment with any medication which increases the risk of thromboembolic events including oral contraceptives

  21. Currently smoking tobacco

  22. Neutropenia (absolute neutrophil count <1000/microliter) or thrombocytopenia (platelet count <100,000/microliter) within 4 weeks prior to screening

  23. Alanine Aminotransferase (ALT) or aspartate aminotransferase (AST) ≥3 times upper limit of normal (ULN) or total bilirubin ≥ 2 times ULN

  24. Past or current medical problems or findings from physical examination or laboratory testing not listed above, which, in the opinion of the investigator, may:

    • pose additional risks from participation in the study
    • interfere with the subject's ability to comply with study requirements, or
    • impact the quality or interpretation of the data obtained from the study.

Exclusion Criteria for Living Donors:

1. There are no exclusion criteria for living donors.

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: Nerandomizované
  • Intervenční model: Sekvenční přiřazení
  • Maskování: Žádné (otevřený štítek)

Zbraně a zásahy

Skupina účastníků / Arm
Intervence / Léčba
Experimentální: Cohort 1

The two investigational agents used in this study are carfilzomib and belatacept.

Per protocol, Carfilzomib administered intravenously:

  • Cycle 1 will consist of 2 doses in week 4 (Day 28 and 29). If tolerated, the dose will be increased and administered twice a week in weeks 5 (Day 35 and 36) and 6 (Day 42 and 43).
  • Cycle 2 will consist of a total of 6 doses, administered twice weekly in weeks 12 (Day 84 and 85), 13 (Day 91 and 92) and 14 (Day 98 and 99).

Per protocol, Belatacept:

-Belatacept will be administered intravenously on days 29 (week 4), 33 (week 5), and weeks 6, 8, 12, 16, then at a lower dose at week 20, 24, 28, 32, 36, 40, 44, 48, 52, and 56. Dosing is based on the recommended dose in the package insert.

Administered: Intravenously (IV). Carfilzomib is administered intravenously, on two consecutive days, each week for three weeks per cycle. In this study, subjects will receive 2 cycles of carfilzomib. Dosing for each cycle is based on the recommended dosing for carfilzomib monotherapy in the package insert.

Carfilzomib is a proteasome inhibitor indicated for the treatment of patients with multiple myeloma. In this study, carfilzomib will be used in highly sensitized subjects without myeloma who are awaiting a kidney transplant.

Ostatní jména:
  • Kyprolis®

Administered: Intravenously (IV). Belatacept is indicated for the prophylaxis of organ rejection in adult patients receiving a kidney transplant. In this study, belatacept will be used in highly sensitized subjects who are awaiting a kidney transplant.

Ostatní jména:
  • Nulojix®

Subjects will undergo a bone marrow aspiration prior to starting the study regimen and at 16 weeks after starting the study regimen. In subjects who undergo a kidney transplant during the study, another bone marrow aspiration will be done if it has been >4 weeks since the previous bone marrow aspiration.

Experimentální: Cohort 2

The enrollment of ten additional subjects and dosing regimen is dependent on the results in Cohort 1.°

Per protocol, Carfilzomib administered intravenously:

  • Cycle 1 will consist of 2 doses in week 4 (Day 28 and 29). If tolerated, the dose will be increased and administered twice a week in weeks 5 (Day 35 and 36) and 6 (Day 42 and 43).
  • Cycle 2 will consist of a total of 6 doses, administered twice weekly in weeks 12 (Day 84 and 85), 13 (Day 91 and 92) and 14 (Day 98 and 99).

Per protocol, Belatacept:

-Belatacept will be administered intravenously on days 28 (week 4), 33 (week 5), and weeks 6, 8, 12, 16, then at a lower dose at week 20, 24, 28, 32, 36, 40, 44, 48, 52, and 56. Dosing is based on the recommended dose in the package insert.

° May be modified based on the safety and efficacy analysis of Cohort 1.

Administered: Intravenously (IV). Carfilzomib is administered intravenously, on two consecutive days, each week for three weeks per cycle. In this study, subjects will receive 2 cycles of carfilzomib. Dosing for each cycle is based on the recommended dosing for carfilzomib monotherapy in the package insert.

Carfilzomib is a proteasome inhibitor indicated for the treatment of patients with multiple myeloma. In this study, carfilzomib will be used in highly sensitized subjects without myeloma who are awaiting a kidney transplant.

Ostatní jména:
  • Kyprolis®

Administered: Intravenously (IV). Belatacept is indicated for the prophylaxis of organ rejection in adult patients receiving a kidney transplant. In this study, belatacept will be used in highly sensitized subjects who are awaiting a kidney transplant.

Ostatní jména:
  • Nulojix®

Subjects will undergo a bone marrow aspiration prior to starting the study regimen and at 16 weeks after starting the study regimen. In subjects who undergo a kidney transplant during the study, another bone marrow aspiration will be done if it has been >4 weeks since the previous bone marrow aspiration.

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Proportion of subjects who do not meet a stopping rule for safety and remain free of all of the following through 20 weeks (Cohort 1) after starting treatment or until receiving a transplant, whichever occurs earlier.
Časové okno: Up to 26 weeks post treatment initiation

Proportion of subjects who have not met a subject stopping rule, and remain free of all of the following through Week 26 post treatment initiation or until receiving a transplant, whichever occurs earlier:

  1. Grade 3 or higher infusion reaction,
  2. Grade 3 or higher infections, and
  3. Any malignancy.

The study site will grade the severity of adverse events experienced by the study subjects according to the criteria set forth in the National Cancer Institute's Common Terminology Criteria for Adverse Events (CTCAE) Version 5.0 (Published November 27, 2017).

Up to 26 weeks post treatment initiation
Proportion of subjects who do not meet a stopping rule for safety and remain free of all of the following through Week 24 (Cohort 2) post treatment initiation or until receiving a transplant, whichever occurs earlier.
Časové okno: Up to 24 weeks post treatment initiation

Proportion of subjects who have not met a subject stopping rule, and remain free of all of the following through Week 24 post treatment initiation or until receiving a transplant, whichever occurs earlier:

  1. Grade 3 or higher infusion reaction,
  2. Grade 3 or higher infections, and
  3. Any malignancy.

The study site will grade the severity of adverse events experienced by the study subjects according to the criteria set forth in the National Cancer Institute's Common Terminology Criteria for Adverse Events (CTCAE) Version 5.0 (Published November 27, 2017).

Up to 24 weeks post treatment initiation
Proportion of subjects who achieve any one of the following compared to Baseline - Cohort 1
Časové okno: Baseline (Visit 0) to Week 20 post treatment initiation

Proportion of subjects who achieve any one of the following compared to Baseline (Visit 0):

  1. Elimination of one human leukocyte antigen (HLA) antibody at Week 20 (which is Study Week 24) post treatment initiation,
  2. 50% or greater reduction in the mean fluorescence intensity (MFI) of at least three HLA antibodies at Week 20 (which is Study Week 24) after starting treatment, and/or
  3. Kidney transplant with a previously incompatible donor within 20 weeks after starting treatment without graft loss due to acute antibody mediated rejection occurring within the first four weeks post-transplant and caused by an anamnestic response.
Baseline (Visit 0) to Week 20 post treatment initiation
Proportion of subjects who meet any one of the pre-specified events detailed in the outcome description: from Baseline to Week 24 post treatment initiation - Cohort 2
Časové okno: Baseline (Visit 0) to Week 24 post treatment initiation

Proportion of subjects who meet any one of the following compared to Baseline (Visit 0):

  1. Elimination of one human leukocyte antigen (HLA) antibody at Week 24 (which is Study Week 28) post treatment initiation,
  2. 50% or greater reduction in the mean fluorescence intensity (MFI) of at least three HLA antibodies at Week 24 (which is Study Week 28) after starting treatment, and/or
  3. Kidney transplant with a previously incompatible donor within 52 weeks after starting treatment without graft loss due to acute antibody mediated rejection occurring within the first four weeks post-transplant and caused by an anamnestic response.
Baseline (Visit 0) to Week 24 post treatment initiation

Sekundární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Počet událostí infekce cytomegalovirem (CMV) do 24 týdnů od zahájení léčby
Časové okno: Do 24 týdnů po zahájení léčby
Do 24 týdnů po zahájení léčby
Počet událostí cytomegalovirové (CMV) infekce do 52 týdnů od zahájení léčby
Časové okno: Do 52 týdnů po zahájení léčby
Do 52 týdnů po zahájení léčby
Počet případů posttransplantační lymfoproliferativní poruchy (PTLD) do 52 týdnů po transplantaci
Časové okno: Do 52 týdnů po transplantaci
Do 52 týdnů po transplantaci
Podíl subjektů transplantovaných s dárcem, u kterého byla dárce-specifická protilátka (DSA) dříve pozitivní a snížena o ≥50 % v době transplantace do 52 týdnů po zahájení léčby
Časové okno: Do 52 týdnů po transplantaci
Do 52 týdnů po transplantaci
Proportion of subjects transplanted with a DSA-negative donor to whom DSA was previously positive, within 52 weeks after starting treatment
Časové okno: Within 52 weeks post treatment initiation

Clinical outcome measure.

Subjects may receive a kidney transplant while in the study, either from a living or deceased donor to whom they were previously compatible, or from a previously incompatible donor in case there is a significant reduction in HLA antibody.

Within 52 weeks post treatment initiation
Proportion of subjects with biopsy-proven acute or chronic antibody mediated rejection (AMR) within 52 weeks post-transplant in subjects who undergo a kidney transplant
Časové okno: Within 52 weeks post-transplant

Clinical outcome measure.

Antibody mediated rejection (AMR) is an important cause of graft loss after organ transplantation and is caused by anti-donor-specific antibodies, especially anti- human leukocyte antigen (HLA) antibodies.

Within 52 weeks post-transplant
Number of biopsy-proven acute or chronic AMR events within 52 weeks post-transplant in subjects who undergo a kidney transplant
Časové okno: Within 52 weeks post-transplant

Clinical outcome measure.

Antibody mediated rejection (AMR) is an important cause of graft loss after organ transplantation and is caused by anti-donor-specific antibodies, especially anti- human leukocyte antigen (HLA) antibodies.

Within 52 weeks post-transplant
Proportion of subjects with invasive fungal infections, mycobacterial infections or Pneumocystis jirovecii infection within 24 weeks after starting treatment
Časové okno: Within 24 weeks post treatment initiation

A measure of infection-related morbidity.

Within 24 weeks post treatment initiation
Proportion of subjects with invasive fungal infections, mycobacterial infections or Pneumocystis jirovecii infection within 52 weeks after starting treatment
Časové okno: Within 52 weeks post treatment initiation

A measure of infection-related morbidity.

Within 52 weeks post treatment initiation
Number of invasive fungal infections, mycobacterial infections, or Pneumocystis jirovecii infection events within 24 weeks after starting treatment
Časové okno: Within 24 weeks post treatment initiation

A measure of infection-related morbidity.

Within 24 weeks post treatment initiation
Number of invasive fungal infections, mycobacterial infections, or Pneumocystis jirovecii infection events within 52 weeks after starting treatment
Časové okno: Within 52 weeks post treatment initiation

A measure of infection-related morbidity.

Within 52 weeks post treatment initiation
Proportion of subjects with cytomegalovirus (CMV) infection and disease within 24 weeks after starting treatment
Časové okno: Within 24 weeks post treatment initiation

CMV infection confirmed by the presence of detectable CMV in blood by polymerase chain reaction [PCR] diagnostic testing, regardless of whether signs or symptoms are present.

Within 24 weeks post treatment initiation
Proportion of subjects with cytomegalovirus (CMV) infection and disease within 52 weeks after starting treatment
Časové okno: Within 52 weeks post treatment initiation

CMV infection confirmed by the presence of detectable CMV in blood by polymerase chain reaction [PCR] diagnostic testing, regardless of whether signs or symptoms are present.

Within 52 weeks post treatment initiation
Proportion of subjects with post-transplant lymphoproliferative disorder (PTLD) within 52 weeks post-transplant
Časové okno: Within 52 weeks post-transplant

As per diagnosis by local pathologist and treating physician.

Within 52 weeks post-transplant
Mean number of Human Leukocyte Antigen (HLA) antibodies eliminated at 16 weeks compared to Baseline (Cohort 1)
Časové okno: Baseline (Visit 0), Week 16 post treatment initiation

Mechanistic outcome measure focusing on change in donor specific antibodies (DSA).

Baseline (Visit 0), Week 16 post treatment initiation
Mean number of Human Leukocyte Antigen (HLA) antibodies eliminated at 52 weeks compared to Baseline (Cohort 2)
Časové okno: Baseline (Visit 0), Week 52 post treatment initiation

Mechanistic outcome measure focusing on change in donor specific antibodies (DSA).

Baseline (Visit 0), Week 52 post treatment initiation
Mean percentage of Human Leukocyte Antigen (HLA) antibodies eliminated at 16 weeks compared to Baseline (Cohort 1)
Časové okno: Baseline (Visit 0), Weeks 16, and 52 post treatment initiation

Mechanistic outcome measure focusing on change in donor specific antibodies (DSA).

Baseline (Visit 0), Weeks 16, and 52 post treatment initiation
Mean percentage of Human Leukocyte Antigen (HLA) antibodies eliminated at 52 weeks compared to Baseline (Cohort 2)
Časové okno: Baseline (Visit 0), Weeks 16, and 52 post treatment initiation

Mechanistic outcome measure focusing on change in donor specific antibodies (DSA).

Baseline (Visit 0), Weeks 16, and 52 post treatment initiation

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Vyšetřovatelé

  • Studijní židle: Stuart J. Knechtle, MD, Duke Department of Surgery, Duke University School of Medicine
  • Studijní židle: Annette M. Jackson, PhD, Duke Department of Surgery, Duke University School of Medicine

Publikace a užitečné odkazy

Osoba odpovědná za zadávání informací o studiu tyto publikace poskytuje dobrovolně. Mohou se týkat čehokoli, co souvisí se studiem.

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)

28. prosince 2021

Primární dokončení (Aktuální)

5. srpna 2026

Dokončení studie (Odhadovaný)

1. dubna 2027

Termíny zápisu do studia

První předloženo

17. srpna 2021

První předloženo, které splnilo kritéria kontroly kvality

17. srpna 2021

První zveřejněno (Aktuální)

24. srpna 2021

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

5. listopadu 2026

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

2. listopadu 2026

Naposledy ověřeno

1. listopadu 2026

Více informací

Termíny související s touto studií

Další identifikační čísla studie

  • DAIT ITN089ST
  • ITN089ST (Jiný identifikátor: Immune Tolerance Network (ITN))
  • NIAID CRMS ID#: 38685 (Jiný identifikátor: DAIT NIAID)

Plán pro data jednotlivých účastníků (IPD)

Plánujete sdílet data jednotlivých účastníků (IPD)?

ANO

Popis plánu IPD

The plan is to share data upon completion of the study in: Immunology Database and Analysis Portal (ImmPort), a long-term archive of clinical and mechanistic data from DAIT-funded grants and contracts.

Časový rámec sdílení IPD

On average, within 24 months after database lock for the trial.

Kritéria přístupu pro sdílení IPD

Open access.

Informace o lécích a zařízeních, studijní dokumenty

Studuje lékový produkt regulovaný americkým FDA

Ano

Studuje produkt zařízení regulovaný americkým úřadem FDA

Ne

Tyto informace byly beze změn načteny přímo z webu clinicaltrials.gov. Máte-li jakékoli požadavky na změnu, odstranění nebo aktualizaci podrobností studie, kontaktujte prosím register@clinicaltrials.gov. Jakmile bude změna implementována na clinicaltrials.gov, bude automaticky aktualizována i na našem webu .

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