A study of AZD2962, an IRAK4 inhibitor, in Participants with Haematologic Neoplasms

2025-520786-44-00 Protocol D7770C00001 Phase I and Phase II (Integrated) - First administration to humans Temporarily halted

Start 21 Oct 2025 · Status Temporarily halted · 1 EU/EEA countries · 6 sites · Protocol D7770C00001

Overview

Sponsor-declared trial summary

Phase Phase I and Phase II (Integrated) - First administration to humans
Status Temporarily halted
Participants planned 77
Countries 1
Sites 6

Myelodysplastic syndromes

- To assess the safety and tolerability of AZD2962. - To identify the Optimal Biological Dose.

Key facts

Sponsor
AstraZeneca AB
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Neoplasms [C04], Diseases [C] - Hemic and Lymphatic Diseases [C15]
Trial duration
21 Oct 2025 → ongoing
Decision date (initial)
2025-08-11
Transition trial
No
Low-intervention
No
Rare-disease indication
Yes
Vulnerable population
Yes
Funding sources
AstraZeneca AB

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Safety, Efficacy, Pharmacogenomic, Pharmacokinetic, Others, Therapy, Pharmacodynamic

- To assess the safety and tolerability of AZD2962.
- To identify the Optimal Biological Dose.

Secondary objectives 2

  1. To estimate the efficacy of AZD2962.
  2. To characterise the PK of AZD2962 as monotherapy

Conditions and MedDRA coding

Myelodysplastic syndromes

VersionLevelCodeTermSystem organ class
20.0 HLT 10028536 Myelodysplastic syndromes 10029104
21.0 PT 10009018 Chronic myelomonocytic leukaemia 100000004864

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 6

  1. Participant must be at least 18 (or older as per the legal age of consent in the applicable jurisdiction) at the time of signing the informed consent.
  2. Patients with R/R MDS or patients with R/R dysplastic CMML, with peripheral blasts or bone marrow blasts < 20%, and who received one or more prior lines of therapy as per standard of care (or who exhausted locally available treatments including treatments for actionable mutations). Note: Participants with dysplastic CMML are only eligible for dose escalation cohort.
  3. ECOG performance status of ≤ 2.
  4. Patients must have symptomatic disease that requires therapy and allows for objective efficacy assessments.
  5. Willing to provide baseline BMA (or biopsy if dry-tap).
  6. Must meet the following laboratory parameters: a. WBC count ≤ 10.0 x 109/L (MDS patients), or < 13.0 x 109/L (CMML patients). Note: For MDS patients, treatment with hydroxyurea is permitted to lower the WBC to reach this inclusion criterion. The WBC should be determined ≥ 24 hours after the last dose of hydroxyurea; b. ALT and AST ≤ 3 × ULN; c. Serum TBL ≤ 1.5× ULN (≤ 3 × ULN in case of documented Gilbert’s Syndrome); d. Creatinine clearance ≥ 60 mL/min calculated by Cockcroft and Gault method.

Exclusion criteria 22

  1. Prior treatment with IRAK inhibitors or inhibitors of the inflammasome pathway.
  2. Received any antineoplastic therapy (except hydroxyurea) within 15 days prior to C1D1
  3. Received major surgery (as defined by the investigator) within 28 days prior to C1D1, or still recovering from surgery.
  4. Received drugs that are known to prolong QT and with known risk of Torsades de Pointes, within 15 days (or 5 half-lives, whichever is longer) prior to C1D1.
  5. Received immunosuppressive medications (including GVHD prophylaxis) within 28 days prior to C1D1, or within 15 days in the case of systemic steroids (doses exceeding 10 mg/day of prednisone or equivalent).
  6. Received live attenuated vaccines within 28 days prior to C1D1.
  7. Active major bleeding event.
  8. Any evidence of systemic disease (severe or uncontrolled), significant clinical disorder, or laboratory finding, that make undesirable the participation in the study.
  9. Symptomatic heart failure (New York Heart Association Grade 2 to Grade 4), or hospitalisation for heart failure within 6 months prior to C1D1.
  10. Acute coronary syndrome/myocardial infarction or percutaneous coronary intervention or coronary artery bypass graft within 6 months prior to C1D1.
  11. Any planned revascularisation intervention or severe valvular heart disease.
  12. Stroke or transient ischaemic attack within 6 months prior to C1D1.
  13. LVEF < 50%.
  14. Symptomatic and uncontrolled hypertension.
  15. Mean resting QTcF > 450 ms obtained from triplicate ECGs and averaged, recorded within 5 minutes. In the presence of bundle branch block, QTcF > 470 ms is applicable.
  16. History of intracranial bleeding within 6 months prior to C1D1
  17. Serologic status reflecting active hepatitis B or C infection: a. Participants with positive HBsAg will be excluded; b. Participants with anti-HBc IgG Ab positive will be excluded unless they have a negative HBV PCR result before enrolment (in this case HBV PCR will be monitored repeatedly while on study per institutional guidance); c. Participants with positive anti-HCV Ab will be excluded unless they have a negative HCV PCR result before enrolment.
  18. Active HIV infection. Participants on an effective anti-retroviral therapy and sustained viral load undetectable for at least 6 months prior to enrolment, are eligible after confirmation from the Sponsor. HIV viral load must be monitored while on study per institutional guidance.
  19. Active gastrointestinal disease or other condition that will interfere significantly with the absorption, distribution, metabolism or excretion of oral therapy (eg, ulcerative disease, uncontrolled nausea, vomiting, diarrhoea Grade ≥ 2, and malabsorption).
  20. History of a prior non-haematologic neoplasm, except for adequately treated basal cell or squamous cell skin cancer, in situ cancer, or other cancer from which the patient has been disease free with no evidence of recurrence for ≥ 2 years.
  21. Unresolved Grade ≥ 2 toxicities from prior anticancer therapies except for alopecia, vitiligo, or endocrine disorders controlled with replacement hormone therapy.
  22. Active GVHD. Topical steroids for GVHD may continue indefinitely

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 4

  1. Incidence of DLTs during the DLT observation period.
  2. Incidence, severity, and relationship to IMP, of AEs and SAEs.
  3. Changes from baseline in laboratory evaluations, vital signs, physical examinations, and ECG results.
  4. Duration of exposure and relative dose intensity.

Secondary endpoints 4

  1. Objective Response, as assessed by the response criteria corresponding to the different haematologic neoplasms.
  2. Duration of Response, Time to Response, Overall Survival, and Time to progression to AML.
  3. Plasma concentrations of AZD2962.
  4. Plasma PK parameters of AZD2962 (including but not limited to AUC, Cmax, and tmax, as data allow).

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 2

AZD2962

PRD12106992 · Product

Active substance
AZD2962
Pharmaceutical form
FILM COATED TABLET
Route of administration
ORAL
Authorisation status
Not Authorised
MA holder
ASTRAZENECA AB
Paediatric formulation
No
Orphan designation
No

AZD2962

PRD12107002 · Product

Active substance
AZD2962
Pharmaceutical form
FILM COATED TABLET
Route of administration
ORAL
Authorisation status
Not Authorised
MA holder
ASTRAZENECA AB
Paediatric formulation
No
Orphan designation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

AstraZeneca AB

Sponsor organisation
AstraZeneca AB
Address
-
City
Sodertalje
Postcode
151 85
Country
Sweden

Scientific contact point

Organisation
AstraZeneca AB
Contact name
AstraZeneca Clinical Study Information Center

Public contact point

Organisation
AstraZeneca AB
Contact name
AstraZeneca Clinical Study Information Center

Third parties 1

OrganisationCity, countryDuties
Parexel International (IRL) Limited
ORG-100022780
Dublin 2, Ireland On site monitoring, Code 10, Code 11, Code 12, Code 13, Code 2, Code 5, Data management, E-data capture, Code 8, Code 9

Locations

1 EU/EEA country · 6 investigational sites

By country

CountryMS statusPlanned subjectsSites
Spain Temporarily halted 7 6
Rest of world
Japan, United Kingdom, United States, Australia, Korea, Republic of, Taiwan
70

Investigational sites

Spain

6 sites · Temporarily halted
MD Anderson Cancer Center
#7004: Hematología, Calle De Arturo Soria Nº 270, 28033, Madrid
Clinica Universidad De Navarra
#7005: Hematologia, Calle Marquesado De Santa Marta 1, 28027, Madrid
Hospital Universitari Vall D Hebron
#7006: Hematología, Passeig De La Vall D'Hebron 119-129, 08035, Barcelona
Hospital Universitario De Salamanca
#7002: Hematología, Paseo De San Vicente 58-182, 37007, Salamanca
Clinica Universidad De Navarra
#7003: Hematologia, Pio XII Etorbidea 36, 31008, Pamplona
Hospital Universitario Y Politecnico La Fe
#7001: Hematología, Avenida Fernando Abril Martorell 106, 46026, Valencia

Country notifications

Trial-start, recruitment-start, end and early-termination notifications submitted per Member State

Country Trial startTrial end Recruitment startRecruitment end Early termination
Spain 2025-10-21 2025-11-04 2026-04-02

Oversight and notifications

Regulatory notifications under CTR Articles 38, 52, 53, 54 and 77

Temporary halts 1 · Art. 38 CTR

Temporary halt TH-129673

Halt date
2026-04-02
Member states concerned
Spain
Publication date
2026-04-17
Reason
Sponsor decision, Safety related (clinical or pre-clinical results)
Explanation
Enrolment has been paused until a comprehensive safety review is completed, a determination regarding the dose levels has been made and a protocol amendment has been approved.
Follow-up measures
Temporary pause of enrolment was implemented for new subjects only. For subjects already enrolled in the study:
- The frequency of hepatic monitoring and serum chemistry lab tests has been increased
- Dose modification guidance for increase in liver function tests has been revised
Benefit-risk balance changed
Yes
Treatment stopped
No

Urgent safety measures 1 · Art. 54 CTR

Urgent safety measure US-128297

Event date
2026-04-02
Submission date
2026-04-09
In response to
OTHER
Member states affected
Spain
Event description
There was a Hy&#39;s law case (based on PI evaluation) that occurred during Cycle 2, and led to discontinuation of study participation, per protocol
Measures taken
AstraZeneca has made the decision to pause additional recruitment into the study until a comprehensive safety review, and a comprehensive determination is made regarding the dose levels.

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Documents 7 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Protocol (for publication) D1_Protocol Main English D7770C00001 Public 4.0
Recruitment arrangements (for publication) K1_ESP Recruitment Procedure Description English D7770C00001 Public 1.0
Subject information and informed consent form (for publication) L1_ESP Country ICF Future Research Spanish D7770C00001 Public 1.0
Subject information and informed consent form (for publication) L1_ESP Country ICF Main Spanish D7770C00001 Public 1.1
Subject information and informed consent form (for publication) L1_ESP Country ICF Other Pregnant Partner Spanish D7770C00001 Public 1.0
Subject information and informed consent form (for publication) L1_ESP Country ICF PGX Spanish D7770C00001 Public 1.0
Synopsis of the protocol (for publication) D1_ESP Lay Protocol Synopsis Main Spanish D7770C00001 Public 4.0

Application history

2 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2025-05-06 Spain Acceptable
2025-08-01
2025-08-11
2 SUBSTANTIAL MODIFICATION SM-1 2025-11-07 Spain Acceptable
2025-12-05
2025-12-10