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Étude de phase IIa évaluant l'AZD7798 dans la maladie de Crohn (AMALTHEA)

9 novembre 2026 mis à jour par: AstraZeneca

Une étude de phase IIa en double aveugle, contrôlée par placebo, pour évaluer l'efficacité et l'innocuité de l'AZD7798 chez les patients atteints de la maladie de Crohn modérée à sévère

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.

Aperçu de l'étude

Statut

Actif, ne recrute pas

Les conditions

Intervention / Traitement

Type d'étude

Interventionnel

Inscription (Réel)

120

Phase

  • Phase 2

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Lieux d'étude

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

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

18 ans à 80 ans (Adulte, Adulte plus âgé)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

La description

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

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Traitement
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Quadruple

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Comparateur placebo: Placebo

Placebo

Placebo

Expérimental: AZD7798

AZD7798

AZD7798

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
CDAI remission
Délai: 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

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Endoscopic response
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: Week 12

Decrease of average daily stool frequency and average daily abdominal pain

Week 12
Serum AZD7798 concentration
Délai: Up to 85 days

Serum AZD7798 concentration (PK)

Up to 85 days
Incidence of anti-drug antibody response
Délai: 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
Délai: 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

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

28 août 2024

Achèvement primaire (Réel)

30 avril 2026

Achèvement de l'étude (Estimé)

14 mai 2027

Dates d'inscription aux études

Première soumission

8 mai 2024

Première soumission répondant aux critères de contrôle qualité

4 juin 2024

Première publication (Réel)

10 juin 2024

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

10 novembre 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

9 novembre 2026

Dernière vérification

1 novembre 2026

Plus d'information

Termes liés à cette étude

Autres numéros d'identification d'étude

  • D9690C00005

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

OUI

Description du régime IPD

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.

Délai de partage IPD

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.

Critères d'accès au partage IPD

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.

Type d'informations de prise en charge du partage d'IPD

  • PROTOCOLE D'ÉTUDE
  • SÈVE

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Oui

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .