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Fase IIa-studie ter evaluatie van AZD7798 bij de ziekte van Crohn (AMALTHEA)

9 november 2026 bijgewerkt door: AstraZeneca

Een dubbelblinde, placebogecontroleerde fase IIa-studie om de werkzaamheid en veiligheid van AZD7798 te evalueren bij patiënten met matige tot ernstige ziekte van Crohn

This is a randomised, double-blind, parallel group, placebo-controlled Phase IIa study designed to evaluate the efficacy and safety of AZD7798 in participants with moderate to severe Crohn's disease.

Studie Overzicht

Toestand

Actief, niet wervend

Conditie

Interventie / Behandeling

Studietype

Ingrijpend

Inschrijving (Werkelijk)

120

Fase

  • Fase 2

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

      • CABA, Argentinië, C1025ABI
        • Research Site
      • CABA, Argentinië, 1125
        • Research Site
      • Ciudad Autonoma de Bs As, Argentinië, C1013AAB
        • Research Site
      • Ciudad de Buenos Aires, Argentinië, 1128
        • Research Site
      • San Miguel de Tucumán, Argentinië, 4000
        • Research Site
      • Adelaide, Australië, 5000
        • Research Site
      • Box Hill, Australië, 3128
        • Research Site
      • Fitzroy, Australië, 3065
        • Research Site
      • Melbourne, Australië, 3004
        • Research Site
      • Wollongong, Australië, 2500
        • Research Site
      • Leuven, België, 3000
        • Research Site
      • Campinas, Brazilië, 13092133
        • Research Site
      • Jaú, Brazilië, 17201-130
        • Research Site
      • Porto Alegre, Brazilië, 90035-903
        • Research Site
      • Santo André, Brazilië, 09080-110
        • Research Site
      • São José do Rio Preto, Brazilië, 15090-000
        • Research Site
      • São Paulo, Brazilië, 04077020
        • Research Site
      • Gorna Oryahovitsa, Bulgarije, 5100
        • Research Site
      • Sofia, Bulgarije, 1784
        • Research Site
      • Sofia, Bulgarije, 1680
        • Research Site
    • Alberta
      • Lethbridge, Alberta, Canada, T1J4G9
        • Research Site
      • Santiago, Chili, 8330034
        • Research Site
      • Santiago, Chili, 7500010
        • Research Site
      • Santiago, Chili, 7691236
        • Research Site
      • Viña del Mar, Chili, 2540488
        • Research Site
      • Beijing, China, CN-100730
        • Research Site
      • Chengdu, China, 610041
        • Research Site
      • Guangzhou, China, 510080
        • Research Site
      • Guangzhou, China, 510655
        • Research Site
      • Hangzhou, China, 310016
        • Research Site
      • Nanchang, China, 330006
        • Research Site
      • Nanjing, China, 210029
        • Research Site
      • Wuhan, China, 430030
        • Research Site
      • Berlin, Duitsland, 14163
        • Research Site
      • Potsdam, Duitsland, 14467
        • Research Site
      • Ulm, Duitsland, 89081
        • Research Site
      • Montpellier, Frankrijk, 34090
        • Research Site
      • Pierre-Bénite, Frankrijk, 69495
        • Research Site
      • Békéscsaba, Hongarije, 5600
        • Research Site
      • Gyöngyös, Hongarije, 3200
        • Research Site
      • Milan, Italië, 20132
        • Research Site
      • Milan, Italië, 20157
        • Research Site
      • Roma, Italië, 00152
        • Research Site
      • Rome, Italië, 00168
        • Research Site
      • Hiroshima, Japan, 734-8551
        • Research Site
      • Kashiwa-shi, Japan, 277-0871
        • Research Site
      • Kure-shi, Japan, 737-8505
        • Research Site
      • Minatoku, Japan, 108-8642
        • Research Site
      • Nagasaki, Japan, 852-8501
        • Research Site
      • Nagoya, Japan, 466-8560
        • Research Site
      • Sakura-shi, Japan, 285-8741
        • Research Site
      • Sapporo, Japan, 060-8543
        • Research Site
      • Sendai, Japan, 980-8574
        • Research Site
      • Johor Bahru, Maleisië, 80100
        • Research Site
      • Kota Bharu, Maleisië, 15586
        • Research Site
      • Kota Kinabalu, Maleisië, 88200
        • Research Site
      • Kuala Lumpur, Maleisië, 59100
        • Research Site
      • Kuching, Maleisië, 93586
        • Research Site
      • Amsterdam, Nederland, 1081 HZ
        • Research Site
      • Chernivtsі, Oekraïne, 58022
        • Research Site
      • Kiev, Oekraïne, 02000
        • Research Site
      • Kyiv, Oekraïne, 03680
        • Research Site
      • Kyiv, Oekraïne, 04210
        • Research Site
      • Ternopil, Oekraïne, 46000
        • Research Site
      • Vinnytsia, Oekraïne, 21009
        • Research Site
      • Vinnytsia, Oekraïne, 21001
        • Research Site
      • Bydgoszcz, Polen, 85-229
        • Research Site
      • Chojnice, Polen, 89-600
        • Research Site
      • Krakow, Polen, 30-363
        • Research Site
      • Lublin, Polen, 20-582
        • Research Site
      • Poznan, Polen, 60-529
        • Research Site
      • Poznan, Polen, 61-731
        • Research Site
      • Sopot, Polen, 81-756
        • Research Site
      • Warsaw, Polen, 00-189
        • Research Site
      • Warsaw, Polen, 04-501
        • Research Site
      • Wroclaw, Polen, 53-149
        • Research Site
      • Bucharest, Roemenië, 020125
        • Research Site
      • Cluj-Napoca, Roemenië, 400380
        • Research Site
      • Timișoara, Roemenië, 300002
        • Research Site
      • Košice, Slowakije, 04013
        • Research Site
      • Nitra, Slowakije, 94901
        • Research Site
      • Prešov, Slowakije, 08001
        • Research Site
      • Trnava, Slowakije, 91702
        • Research Site
      • Barcelona, Spanje, 08022
        • Research Site
      • Seville, Spanje, 41013
        • Research Site
      • New Taipei City, Taiwan, 24352
        • Research Site
      • Taichung, Taiwan, 40447
        • Research Site
      • Taipei, Taiwan, 10002
        • Research Site
      • Taoyuan, Taiwan, 333
        • Research Site
      • Ankara, Turkije (Türkiye), 6500
        • Research Site
      • Ankara, Turkije (Türkiye), 06800
        • Research Site
      • Antalya, Turkije (Türkiye), 07100
        • Research Site
      • Izmir, Turkije (Türkiye), 35100
        • Research Site
      • Malatya, Turkije (Türkiye), 44280
        • Research Site
      • İzmit, Turkije (Türkiye), 41000
        • Research Site
    • Arizona
      • Phoenix, Arizona, Verenigde Staten, 85054
        • Research Site
    • California
      • Escondido, California, Verenigde Staten, 92025
        • Research Site
      • La Jolla, California, Verenigde Staten, 92037
        • Research Site
    • Florida
      • Orlando, Florida, Verenigde Staten, 32825
        • Research Site
    • Idaho
      • Idaho Falls, Idaho, Verenigde Staten, 83404
        • Research Site
    • Kansas
      • Kansas City, Kansas, Verenigde Staten, 66160
        • Research Site
    • Michigan
      • Clinton Township, Michigan, Verenigde Staten, 48038
        • Research Site
    • Missouri
      • St Louis, Missouri, Verenigde Staten, 63156
        • Research Site
    • North Carolina
      • Asheville, North Carolina, Verenigde Staten, 28803
        • Research Site
      • Charlotte, North Carolina, Verenigde Staten, 28204
        • Research Site
    • Pennsylvania
      • Uniontown, Pennsylvania, Verenigde Staten, 15401
        • Research Site
    • Texas
      • Garland, Texas, Verenigde Staten, 75044
        • Research Site
      • San Antonio, Texas, Verenigde Staten, 78229
        • Research Site
      • Hanoi, Vietnam, 100000
        • Research Site
      • Ho Chi Minh City, Vietnam, 700000
        • Research Site
      • Hà Nội, Vietnam, 100000
        • Research Site
      • Hồ Chí Minh, Vietnam, 700000
        • Research Site
      • Assagay, Zuid-Afrika, 3610
        • Research Site
      • Plumstead, Zuid-Afrika, 7800
        • Research Site
      • Linköping, Zweden, 58185
        • Research Site
      • Stockholm, Zweden, 11630
        • Research Site

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

18 jaar tot 80 jaar (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  1. 18 to 80 years of age.

  2. Diagnosis of Crohn's disease established with verifiable clinical, AND at least one of imaging, endoscopic and/or histopathologic evidence.

  3. Moderate to severe active Crohn's disease.

  4. Ileal/ileocecal (L1), colonic (L2), or ileocolonic (L3) disease, as classified based on the localisation of active inflammation.

  5. Capable of giving signed informed consent.

  6. A history of at least one of:

    1. Intolerance or inadequate response to conventional treatment (oral corticosteroid, azathioprine, 6-mercaptopurine, or methotrexate), biologics, or other approved advanced therapy (eg, JAK inhibitors) OR
    2. Corticosteroid dependency (defined as inability to taper below budesonide 6 mg/day or prednisolone 10 mg/day equivalent dosing without recurrent active disease) for the treatment of Crohn's disease.

Exclusion Criteria:

  1. Evidence, or clinical suspicion, of other forms of IBD or concomitant additional active gastrointestinal luminal inflammatory diseases.

  2. Symptomatic strictures or bowel stenoses, or strictures preventing passage of endoscope throughout the colon (including at screening endoscopy).

  3. Any complications of Crohn's disease where surgery is anticipated or planned prior to end of study treatment.

  4. Evidence of extensive prior gastrointestinal surgical interventions.

  5. Within 3 months prior to screening endoscopy visit:

    1. History of toxic megacolon
    2. Diagnosis of peritonitis or need for treatment of peritonitis
    3. Bowel perforation or evidence of obstruction.
  6. All intrabdominal abscesses are excluded. Cutaneous and perianal/perirectal abscesses and fistulae are excluded unless adequately drained at least 4 weeks prior to screening endoscopy visit with no anticipation for surgery prior to end of study treatment.

  7. Ongoing or expected nutritional dependency on total enteral or parenteral nutrition during study.

  8. Evidence of an increased risk of colorectal cancer.

  9. Symptomatic oral Crohn's disease within one year.

  10. Any of the following treatments within the specified time period prior to screening endoscopy visit

    1. An anti-TNF biologic within 8 weeks prior to screening endoscopy visit
    2. Any biologic targeting immune response other than an anti-TNF within 12 weeks prior to screening endoscopy visit
    3. Other advanced small molecule treatments for Crohn's disease within 4 weeks prior to screening endoscopy visit
    4. Cyclosporine, mycophenolate mofetil, sirolimus (rapamycin), thalidomide, or tacrolimus (FK-506) within 4 weeks prior to screening endoscopy visit
    5. Treatment with apheresis within 4 weeks prior to screening endoscopy visit
    6. Administration of any live vaccine within 4 weeks prior to screening endoscopy visit to end of study
    7. Faecal microbiota transplantation within 4 weeks prior to screening endoscopy visit
    8. Lymphocyte-depleting treatment within 12 months prior to screening endoscopy visit
    9. Any previous exposure to AZD7798.
  11. Any initiation or changes in dosing of the following medications prior to screening endoscopy visit as outlined: (a) 5-aminosalicylates within 2 weeks (b) Oral corticosteroids within 2 weeks or stable doses of steroids exceeding the following dose equivalents: (i) Systemic steroids > 20 mg/day or prednisolone equivalent (ii) Steroids with limited systemic effects (eg, budesonide and beclomethasone), exceeding maximum budesonide dose equivalent (9 mg/day) (c) Immunomodulators within 4 weeks (d) Antibiotic therapy for the treatment of Crohn's disease (e) Probiotics within 2 weeks.

  12. Chronic use of nonsteroidal anti-inflammatory drugs.

  13. Evidence of recent or currently active infection, including use of IV or oral antibiotics for documented infection within 30 days prior to screening endoscopy visit.

  14. Evidence of chronic HBV or HCV.

  15. History of TB (active or latent) unless an appropriate course of treatment has been completed.

  16. Positive diagnostic TB test at screening.

  17. History of serious opportunistic infection within 12 months prior to screening endoscopy visit.

  18. CMV colitis within previous 12 months prior to screening endoscopy visit.

  19. Positive C. difficile toxin stool test at screening.

  20. Symptomatic herpes zoster infection within 3 months prior to screening endoscopy.

  21. Any identified immunodeficiency.

  22. Abnormal laboratory results at screening suggesting participation may be unsafe, which will prevent the patient from completing the study, or will interfere with the interpretation of the study results.

  23. Reproduction:

    1. Pregnant and breastfeeding patients, or those planning to breastfeed during the study
    2. FOCBP unless completely abstinent or using a highly effective contraception and barrier method of contraception.
  24. Prolonged QTcF interval.

  25. Clinically significant cardiovascular conditions.

  26. Current malignancy or history of malignancy.

  27. Current significant major or unstable respiratory disease, heart disease, cerebrovascular disease, haematological disease, hepatic disease, renal disease, gastrointestinal disease or other major disease other than active Crohn's disease.

  28. Current enrolment in another interventional study or treatment with any investigational drug within 4 months prior to screening endoscopy visit.

  29. Unstable lifestyle factors.

  30. Patients committed to an institution by virtue of an order issued either by the judicial or the administrative authorities.

  31. Investigator concerns regarding patient's willingness and ability to attend all study visits, comply with the study procedures, read in order to complete questionnaires, or to complete the study period

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Verviervoudigen

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Placebo-vergelijker: Placebo

Placebo

Placebo

Experimenteel: AZD7798

AZD7798

AZD7798

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
CDAI remission
Tijdsspanne: Week 12

Crohn's Disease Activity Index (CDAI) is a research tool used to quantify the symptoms of patients with Crohn's disease. It is based on: number of loose stools, abdominal pain, general well-being, extraintestinal complications, antidiarrheal agents used in the previous 7 days, abdominal mass felt on palpation, hematocrit and body weight

Week 12

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Endoscopic response
Tijdsspanne: Week 12

Simple Endoscopic Score for Crohn's Disease (SES-CD) is based on the evaluation of five defined bowel segments (rectum, sigmoid + descending colon, transverse colon, ascending colon, and terminal ileum), and in these segments the presence and size of ulcerations and the extent of the inflammatory area and stenosis are assessed

Week 12
Endoscopic remission
Tijdsspanne: Week 12

Simple Endoscopic Score for Crohn's Disease (SES-CD) is based on the evaluation of five defined bowel segments (rectum, sigmoid + descending colon, transverse colon, ascending colon, and terminal ileum), and in these segments the presence and size of ulcerations and the extent of the inflammatory area and stenosis are assessed

Week 12
Endoscopic score change from baseline
Tijdsspanne: Week 12

Simple Endoscopic Score for Crohn's Disease (SES-CD) is based on the evaluation of five defined bowel segments (rectum, sigmoid + descending colon, transverse colon, ascending colon, and terminal ileum), and in these segments the presence and size of ulcerations and the extent of the inflammatory area and stenosis are assessed

Week 12
CDAI response
Tijdsspanne: Week 12

Crohn's Disease Activity Index (CDAI) is a research tool used to quantify the symptoms of patients with Crohn's disease. It is based on: number of loose stools, abdominal pain, general well-being, extraintestinal complications, antidiarrheal agents used in the previous 7 days, abdominal mass felt on palpation, hematocrit and body weight

Week 12
CDAI score change from baseline
Tijdsspanne: Week 12

Crohn's Disease Activity Index (CDAI) is a research tool used to quantify the symptoms of patients with Crohn's disease. It is based on: number of loose stools, abdominal pain, general well-being, extraintestinal complications, antidiarrheal agents used in the previous 7 days, abdominal mass felt on palpation, hematocrit and body weight

Week 12
Symptomatic remission
Tijdsspanne: Week 12

Decrease of average daily stool frequency and average daily abdominal pain

Week 12
Serum AZD7798 concentration
Tijdsspanne: Up to 85 days

Serum AZD7798 concentration (PK)

Up to 85 days
Incidence of anti-drug antibody response
Tijdsspanne: Up to 36 weeks

Incidence of anti-drug antibody (ADA) response - number and percentages with a positive ADA result

Up to 36 weeks
Titre of anti-drug antibody response
Tijdsspanne: Up to 36 weeks

Titre of anti-drug antibody (ADA) response - immunogenicity titre will be summarized descriptively as a continuous variable, only for ADA positive tests

Up to 36 weeks

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

28 augustus 2024

Primaire voltooiing (Werkelijk)

30 april 2026

Studie voltooiing (Geschat)

14 mei 2027

Studieregistratiedata

Eerst ingediend

8 mei 2024

Eerst ingediend dat voldeed aan de QC-criteria

4 juni 2024

Eerst geplaatst (Werkelijk)

10 juni 2024

Updates van studierecords

Laatste update geplaatst (Werkelijk)

10 november 2026

Laatste update ingediend die voldeed aan QC-criteria

9 november 2026

Laatst geverifieerd

1 november 2026

Meer informatie

Termen gerelateerd aan deze studie

Andere studie-ID-nummers

  • D9690C00005

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

JA

Beschrijving IPD-plan

Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal Vivli.org. All requests will be evaluated as per the AZ disclosure commitment: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.

Yes, indicates that AZ are accepting requests for IPD, but this does not mean all requests will be shared.

IPD-tijdsbestek voor delen

AstraZeneca will meet or exceed data availability as per the commitments made to the EFPIA PhRMA Data Sharing Principles. For details of our timelines, please rerefer to our disclosure commitment at https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.

IPD-toegangscriteria voor delen

When a request has been approved AstraZeneca will provide access to the anonymized individual patient-level data via secure research environment Vivli.org. Signed Data Usage Agreement (non-negotiable contract for data accessors) must be in place before accessing requested information.

IPD delen Ondersteunend informatietype

  • LEERPROTOCOOL
  • SAP

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Ja

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .