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An Efficacy and Safety Study of Azacitidine Subcutaneous in Combination With Durvalumab (MEDI4736) in Previously Untreated Adults With Higher-Risk Myelodysplastic Syndromes (MDS) or in Elderly Patients With Acute Myeloid Leukemia (AML)

A Randomized, Multicenter, Open-label, Phase 2 Study Evaluating the Efficacy and Safety of Azacitidine Subcutaneous in Combination With Durvalumab (MEDI4736) in Previously Untreated Subjects With Higher-Risk Myelodysplastic Syndromes (MDS) or in Elderly (>= 65 Years) Acute Myeloid Leukemia (AML) Subjects Not Eligible for Hematopoietic Stem Cell Transplantation (HSCT)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02775903
Enrollment
213
Registered
2016-05-18
Start date
2016-06-03
Completion date
2021-12-27
Last updated
2023-02-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Leukemia, Myeloid, Acute, Myelodysplastic Syndromes

Keywords

MEDI4736, Durvalumab, Myelodysplastic Syndromes, Acute Myeloid Leukemia, Hematopoietic Stem Cell Transplantation, Azacitidine, Safety, Efficacy, PD-L1

Brief summary

The primary objective of this study is to evaluate the efficacy of subcutaneous azacitidine in combination with durvalumab as compared with subcutaneous azacitidine alone in adults with previously untreated, higher risk MDS who are not eligible for HSCT or in adults ≥ 65 years old with previously untreated AML who are not eligible for HSCT, with intermediate or poor cytogenetic risk.

Interventions

DRUGAzacitidine

Administered by subcutaneous injection on Days 1 to 7 of each 4-week treatment cycle.

BIOLOGICALDurvalumab

Administered by intravenous infusion on Day 1 of every 4-week treatment cycle.

Sponsors

Celgene
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

For both cohorts: 1. Subject must understand and voluntarily sign an informed consent form (ICF) prior to any study-related assessments/procedures being conducted. 2. Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0, 1, or 2. 3. Female subjects of childbearing potential may participate, providing they meet the following conditions: 1. Have 2 negative pregnancy tests as verified by the Investigator prior to starting any investigational product (IP) therapy: serum pregnancy test at screening and negative serum or urine pregnancy test (Investigator's discretion) within 72 hours prior to starting treatment with IP (Cycle 1, Day 1). They must agree to ongoing pregnancy testing during the course of the study (before beginning each subsequent cycle of treatment), and after the last dose of any IP. This applies even if the subject practices complete abstinence from heterosexual contact. 2. Agree to practice true abstinence (which must be reviewed on a monthly basis and source documented) or agree to the use of a highly effective method of contraception use from 28 days prior to starting durvalumab or azacitidine, and must agree to continue using such precautions while taking durvalumab or azacitidine (including dose interruptions) and up to 90 days after the last dose of durvalumab or azacitidine. Cessation of contraception after this point should be discussed with a responsible physician. 3. Agree to abstain from breastfeeding during study participation and for at least 90 days after the last dose of IP. 4. Refrain from egg cell donation while taking durvalumab and for at least 90 days after the last dose of durvalumab. 4. Male subject must: 1. Either practice true abstinence from heterosexual contact (which must be reviewed on a monthly basis) or agree to avoid fathering a child, to use highly effective methods of contraception, male condom plus spermicide during sexual contact with a pregnant female or a female of childbearing potential (even if he has undergone a successful vasectomy) from starting dose of IP (Cycle 1 Day 1), including dose interruptions through 90 days after receipt of the last dose of durvalumab or azacitidine. 2. Refrain from semen or sperm donation while taking IP and for at least 90 days after the last dose of IP. 5. Understand and voluntarily sign a biomarker-specific component of the informed consent form prior to any study-related procedures conducted. 6. Willing and able to adhere to the study visit schedule and other protocol requirements. MDS Cohort: 7. Age ≥ 18 years at the time of signing the informed consent form. 8. Central confirmation of diagnosis of previously untreated primary or secondary myelodysplastic syndromes (MDS) as per World Health Organization (WHO) classification. Results of central pathology review are required prior to receiving the first dose of IP. 9. Central confirmation of the categorization of the MDS risk classification, as per the Revised - International prognostic scoring system (IPSS-R) Intermediate risk with \>10% blasts or poor or very poor cytogenetics, or IPSS-R High or Very High risk (results of central pathology review required prior to receiving the first dose of IP). Acute myeloid leukemia (AML) Cohort: 10. Age ≥ 65 years at the time of signing the informed consent form (ICF). 11. Central confirmation of diagnosis of one of the following untreated AML as per WHO classification: * Newly diagnosed, histologically confirmed de novo AML (bone marrow blasts ≥ 20%), or * AML secondary to prior MDS, or * AML secondary to exposure to potentially leukemogenic therapies or agents (eg, radiation therapy, alkylating agents, topoisomerase II inhibitors) with the primary malignancy in remission for at least 2 years. 12. Central confirmation of intermediate or poor risk status, based on Cytogenetics for acute myeloid leukemia.

Exclusion criteria

For both cohorts: 1. Prior hematopoietic stem cell transplant. 2. Considered eligible for hematopoietic stem cell transplant (allogeneic or autologous) at the time of signing the ICF. 3. Prior exposure to azacitidine, decitabine or prior exposure to the investigational oral formulation of decitabine, or other oral azacitidine derivative. 4. Inaspirable bone marrow. 5. Use of any of the following within 28 days prior to the first dose of IP: * Thrombopoiesis-stimulating agents (eg, romiplostim, eltrombopag, Interleukin-11) * Any hematopoietic growth factors (erythropoietin-stimulating agents \[ESAs\], granulocyte colony-stimulating factor (G-CSF) and other red blood cell (RBC) hematopoietic growth factors (eg, Interleukin-3) * Any investigational agents within 28 days or 5 half-lives (whichever is longer) of initiating study treatment 6. Prior history of malignancies (except MDS for AML subjects), unless the subject has been free of the disease for ≥ 2 years. However, subjects with the following history/concurrent conditions are allowed: * Basal or squamous cell carcinoma of the skin * Carcinoma in situ of the cervix * Carcinoma in situ of the breast * Incidental histologic finding of prostate cancer (T1a or T1b using the tumor, nodes, metastasis \[tumor, node, metastases (TNM)\] clinical staging system). 7. Pregnant or breast-feeding females or females who intend to become pregnant during study participation. 8. Subject has active or prior documented autoimmune or inflammatory disorders (including inflammatory bowel disease \[eg, colitis, Crohn's disease\], diverticulitis with the exception of a prior episode that has resolved or diverticulosis, celiac disease, irritable bowel disease \[exclude only if active within the last 6 months prior to signing the ICF\], or other serious gastrointestinal chronic conditions associated with diarrhea; systemic lupus erythematosus; Wegener's syndrome \[granulomatosis with polyangiitis\]; myasthenia gravis; Graves' disease; rheumatoid arthritis; hypophysitis, uveitis; etc) within the past 3 years prior to the start of treatment. The following are exceptions to this criterion: * Subjects with vitiligo or alopecia; * Subjects with hypothyroidism (eg, following Hashimoto syndrome) stable on hormone replacement for ≥ 3 months prior to signing the ICF; or * Subjects with psoriasis not requiring systemic treatment 9. Significant active cardiac disease within the previous 6 months prior to signing the ICF, including: * New York Heart Association (NYHA) Class III or IV congestive heart failure; * Unstable angina or angina requiring surgical or medical intervention; and/or * Significant cardiac arrhythmia * Myocardial infarction 10. Uncontrolled intercurrent illness including, but not limited to, ongoing or active systemic fungal, bacterial, or viral infection (defined as ongoing signs/symptoms related to the infection without improvement despite appropriate antibiotics or other treatment), uncontrolled hypertension, cardiac arrhythmia, pneumonitis, interstitial lung disease, active peptic ulcer disease or gastritis that would limit compliance with study requirement. 11. Known human immunodeficiency virus (HIV) or hepatitis C (HCV) infection, or evidence of active hepatitis B virus (HBV) infection. 12. Known or suspected hypersensitivity to azacitidine, mannitol, or durvalumab, its constituents, or to any other humanized monoclonal antibody. 13. Any significant medical condition, laboratory abnormality, or psychiatric illness that would prevent the subject from participating in the study. 14. Any condition including the presence of laboratory abnormalities, which places the subject at unacceptable risk if he/she were to participate in the study. 15. Prior anti-cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4), programmed death-1 (PD-1), or programmed death ligand-1 (PD-L1) or other immune checkpoint mAb exposure. 16. Other investigational monoclonal antibodies (mAbs) within 6 months prior to first dose of IP. 17. Current or prior use of immunosuppressive medication within 14 days prior to the first dose of IP. The following are exceptions to this criterion: * Intranasal, inhaled, topical, or local steroid injections (eg, intra-articular injection) * Systemic corticosteroids at physiologic doses not to exceed 10 mg/day of prednisone or equivalent * Steroids as premedication for hypersensitivity reactions (eg, computed tomography \[CT\] scan premedication) 18. History of primary immunodeficiency. 19. Receipt of live, attenuated vaccine within 30 days prior to the first dose of IP (NOTE: Subjects, if enrolled, should not receive live vaccine during the study and for 30 days after the last dose of durvalumab). 20. Unwilling or unable to complete subject reported outcome assessments without assistance or with minimal assistance from trained site personnel and/or caregiver. 21. Subjects who have had clinical evidence of central nervous system (CNS) or pulmonary leukostasis, disseminated intravascular coagulation, or CNS leukemia. 22. Presence of advanced malignant hepatic tumors. 23. Any of the following laboratory abnormalities: * Serum aspartate aminotransferase (AST/SGOT) or alanine aminotransferase (ALT/SGPT) \> 2.5 × upper limit of normal (ULN) * Serum total bilirubin \> 1.5 × ULN. Higher levels are acceptable if these can be attributed to active red blood cell precursor destruction within the bone marrow (ie, ineffective erythropoiesis). Subjects are excluded if there is evidence of autoimmune hemolytic anemia manifested as a corrected reticulocyte count of \> 2% with either a positive Coombs' test or over 50% of indirect bilirubin * Serum creatinine \> 2.5 × ULN. MDS Cohort: 24. Any previous cytotoxic, cytostatic, hormonal, biological or immunological treatment for MDS (ESA with or without G-CSF are allowed under certain conditions, see exclusion criterion # 5). 25. Any investigational therapy within 28 days prior to the first dose of IP. 26. Use of hydroxyurea within 2 weeks prior to obtaining the screening hematology sample and prior to first dose of IP. 27. Absolute white blood cell (WBC) count ≥ 15 × 10\^9/L. AML Cohort: 28. Previous cytotoxic, cytostatic, hormonal, biological or immunological treatment (ESA with or without G-CSF and iron chelating therapy and hydroxyurea are allowed under certain conditions, see exclusion criterion #5) or biologic treatment for AML. 29. Any investigational therapy within 28 days prior to the first dose of IP. 30. Use of hydroxyurea within 2 weeks prior to obtaining the screening hematology sample and prior to first dose of IP. 31. Prior use of targeted therapy agents (eg, FLT3 inhibitors, other kinase inhibitors). 32. Suspected or proven acute promyelocytic leukemia (French-American-British (FAB) M3) based on morphology, immunophenotype, molecular assay, or karyotype; AML associated with t(9;22) karyotype, biphenotypic acute leukemia or AML with previous hematologic disorder such as chronic myelogenous leukemia or myeloproliferative neoplasms. 33. Acute myeloid leukemia associated with inv(16), t(8;21), t(16;16), t(15;17) karyotypes or molecular evidence of such translocations if not associated with a c-Kit mutation. 34. Absolute WBC count ≥ 15 × 10\^⁹/L (NOTE: Hydroxyurea is not allowed to attain a WBC count ≤ 15 x 10⁹/L). 35. Known history or presence of Sweet Syndrome at screening

Design outcomes

Primary

MeasureTime frameDescription
MDS Cohort: Overall Response RateResponse was assessed following every 3 treatment cycles until treatment discontinuation; median duration of treatment was 239 days (AZA) and 215 days (DUR) in the AZA + DUR group and 210 days in the AZA alone group.Overall response rate (ORR) is defined as the percentage of participants achieving a complete remission (CR), partial remission (PR), marrow complete remission (mCR), and/or hematological improvement (HI) based on International Working Group (IWG) 2006 response criteria for MDS and central review. CR: ≤ 5% myeloblasts in bone marrow (BM), and peripheral blood: hemoglobin ≥ 11 g/dL; platelets ≥ 100 × 10⁹/L; neutrophils ≥ 1.0 × 10⁹/L; blasts 0% PR: BM blasts decreased by ≥ 50% but still \> 5%; peripheral blood as for CR mCR: BM ≤ 5% myeloblasts and decrease by ≥ 50% HI: Any of the following: •Hemoglobin increase by ≥ 1.5 g/dL or reduction of units of red blood cell (RBC) transfusions of at least 4 RBC transfusions/8 weeks compared with pretreatment •Absolute increase in platelets of ≥ 30 × 10⁹/L if pretreatment value \> 20 × 10⁹/L or increase from \< 20 × 10⁹/L to \> 20 × 10⁹/L and by at least 100% •At least 100% increase in neutrophils and an absolute increase of \> 0.5 × 10⁹/L
AML Cohort: Overall Response RateResponse was assessed following every 3 treatment cycles until treatment discontinuation; median duration of treatment was 198 days (AZA) and 171 days (DUR) in the AZA + DUR group and 203 days in the AZA alone group.Overall response rate for AML is defined as the percentage of participants achieving an overall response of morphologic complete remission (CR) or morphologic complete remission with incomplete blood count recovery (CRi) based on modified IWG 2003 response criteria for AML and central review. CR: The following conditions must be met: •Absolute neutrophil count (ANC) ≥ 1.0 x10⁹/L •Platelet count ≥ 100 x10⁹/L •The bone marrow should contain less than 5% blast cells; •Auer rods should not be detectable; •No platelet, or whole blood transfusions for 7days prior to the date of the hematology assessment. CRi: Defined as a morphologic complete remission but the ANC count may be \< 1.0 x10⁹/L and/or the platelet count may be \< 100 x10⁹/L.

Secondary

MeasureTime frameDescription
MDS Cohort: Percentage of Participants Who Achieved a Cytogenetic ResponseFrom randomization up to approximately 34 monthsCytogenetic response is defined as the percentage of participants who achieved a complete cytogenetic response or partial cytogenetic response according to the International Working Group (IWG) 2006 response criteria and central review. Complete cytogenetic response: Disappearance of the baseline chromosomal abnormality without appearance of new abnormalities. Partial cytogenetic response: At least 50% reduction of the chromosomal abnormality. Response was assessed following every 3 treatment cycles until treatment discontinuation.
MDS Cohort: Kaplan-Meier Estimate of Progression-free Survival (PFS)From randomization to the first documented progressive disease (PD), relapse, or death due to any cause (up to approximately 34 months)Progression-free survival is defined as the time from randomization to the first documented progressive disease (PD), relapse, or death due to any cause during or after the treatment period, whichever occurred first, according to the International Working Group (IWG) 2006 response criteria for MDS and central review. Participants who were still alive and progression-free were censored at the date of their last response assessment. Progressive disease is defined as follows: - an increase in BM blasts relative to nadir: •If nadir less than 5% blasts: ≥ 50% increase in blasts to \> 5% blasts •If nadir 5% - 10% blasts: ≥ 50% increase in blasts to \> 10% blasts •If nadir 10% - 20% blasts: ≥ 50% increase in blasts to \> 20% blasts •If nadir 20% - 30% blasts: ≥ 50% increase in blasts to \> 30% blasts And any of the following: •At least 50% decrement from maximum remission/response levels in granulocytes or platelets •Reduction in Hgb concentration by ≥ 2 g/dL •Transfusion dependence
MDS Cohort: Kaplan-Meier Estimate of Duration of ResponseFrom randomization to the first overall response, or death (up to approximately 34 months)Duration of response is defined as the time from when the first overall response (complete remission (CR), partial remission (PR), marrow complete remission (mCR), and/or hematological improvement (HI)) was observed until relapse, progressive disease (PD), or death, as defined by the International Working Group (IWG) 2006 response criteria and central review. If no relapse, PD, or death was observed, the duration of response was censored at the last response assessment date that the participant was known to be progression-free. Response was assessed following every 3 treatment cycles until treatment discontinuation.
MDS Cohort: Kaplan-Meier Estimate of Time to AML TransformationFrom randomization to the date the participant had documented transformation to AML (up to approximately 34 months)Participants were monitored for transformation to acute myeloid leukemia (AML) until death, lost to follow-up, withdrawal of consent for further data collection, or the end of the trial. Time to transformation to AML is defined as the time from the date of randomization until the date the participant had documented transformation to AML (defined as at least 30% of myeloblasts in the bone marrow). Participants with no transformation to AML were censored at the date of their last disease assessment.
MDS Cohort: Percentage of Participants With Disease Transformation to AMLFrom randomization until death, lost to follow-up, withdrawal of consent for further data collection, or the end of the trial (up to approximately 34 months)Disease transformation to acute myeloid leukemia (AML) is defined as at least 30% myeloblasts in the bone marrow. Participants were monitored for transformation to AML until death, lost to follow-up, withdrawal of consent for further data collection, or the end of the trial. Participants with no transformation to AML were censored at the date of their last disease assessment.
AML Cohort: Kaplan Meier Estimate of Time to First ResponseFrom randomization and the earliest date any response (up to approximately 34 months)Time to first response is defined as the time between the date of randomization and the earliest date any response (CR or CRi) was observed based on the modified International Working Group (IWG) 2003 response criteria for AML and central review. Participants who did not achieve any defined response were censored at the date of last adequate response assessment, disease progression, or death, whichever occurred first. Response was assessed following every 3 treatment cycles until treatment discontinuation.
AML Cohort: Kaplan Meier Estimate of Relapse-free SurvivalFrom randomization to the date of disease relapse or death from any cause, whichever occurred first (up to approximately 34 months)Relapse-free survival is defined as time from the date of first documented response (morphologic complete remission (CR) or morphologic complete remission with incomplete blood count recovery (CRi)) to the date of disease relapse or death from any cause, whichever occurred first based on the modified International Working Group (IWG) 2003 response criteria for AML and central review. Participants who were still alive and progression-free were censored at the date of their last response assessment. Participants who received a subsequent therapy before the date of disease relapse or death were censored at the time of subsequent therapy.
AML Cohort: Percentage of Participants Who Achieved a Complete Cytogenetic ResponseFrom randomization up to approximately 34 months)Complete cytogenetic response (CyCR) based on the modified International Working Group (IWG) 2003 response criteria is defined as morphologic complete remission with a reversion to a normal karyotype. The following conditions must be met: • Absolute neutrophil count (ANC) ≥ 1.0 x10⁹/L • Platelet count ≥ 100 x10⁹/L • The bone marrow should contain less than 5% blast cells; • Auer rods should not be detectable; • No platelet, or whole blood transfusions for 7days prior to the date of the hematology assessment. AND • Reversion to normal karyotype at time of CR (based on ≥ 10 metaphases). Response was assessed following every 3 treatment cycles until treatment discontinuation.
AML Cohort: Percentage of Participants With Hematologic ImprovementFrom randomization up to approximately 34 monthsHematological improvement was defined as participants with a erythroid response (HI-E), platelet response (HI-P) or neutrophil response (HI-NE) for at least 8 weeks, according to the IWG 2006 response criteria: Hi-E (in participants with pretreatment hemoglobin \< 11 g/dL or red blood cell (RBC)-transfusion dependent): Hemoglobin increase of ≥ 1.5 g/dL, or reduction in units of RBC transfusions of at least 4 RBC transfusions/8 weeks compared with the 8 weeks prior to pretreatment. HI-P (in participants with pretreatment platelet count \< 100 × 10⁹/L): Absolute increase in platelets of ≥ 30 × 10⁹/L if pretreatment value \> 20 × 10⁹/L or increase from \< 20 × 10⁹/L to \> 20 × 10⁹/L and by at least 100%. HI-N (in participants with pretreatment neutrophils \< 1.0 × 10⁹/L): At least 100% increase in neutrophils and an absolute increase of \> 0.5 × 10⁹/L. Response was assessed following every 3 treatment cycles until treatment discontinuation.
AML Cohort: Kaplan-Meier Estimate of Duration of ResponseFrom randomization until relapse, PD, or death (up to approximately 34 months)Duration of response is defined as the time from the first response morphologic complete remission (CR) or morphologic complete remission with incomplete blood count recovery (CRi)) was observed until relapse, PD, or death based on the IWG 2003 response criteria and central review. If no relapse, PD, or death was observed, the duration of response was censored at the last response assessment date that the participant was known to be progression-free. Response was assessed following every 3 treatment cycles until treatment discontinuation.
MDS Cohort: Kaplan Meier Estimate of Time to First ResponseFrom randomization to the earliest date any response (up to approximately 34 months)Time to first response is defined as the time from randomization to the earliest date any response (complete remission (CR), partial remission (PR), marrow complete remission (mCR), and/or hematological improvement (HI)) based on International Working Group (IWG) 2006 response criteria for MDS and central review. Participants who did not achieve any defined response were censored at the date of last adequate response assessment, disease progression, or death, whichever occurred first. Response was assessed following every 3 treatment cycles until treatment discontinuation.
Kaplan-Meier Estimate of Overall SurvivalFrom randomization to date of death or last known alive date (up to approximately 34 months)Overall survival is defined as the time between randomization and death/censored date. Participants who were alive at the time of the clinical data cut-off were censored at the last known alive date.
One-year SurvivalAt 12 months after randomizationOne-year survival is defined as the probability of survival at 1 year from randomization and is represented by the Kaplan-Meier estimate of the percentage of participants alive after 1 year.
Durvalumab Serum ConcentrationCycle 1 Day 1 end of infusion (EOI), Cycle 2 Day 1 pre-infusion, Cycle 4 Day 1 pre-infusion and EOI, and Cycle 6 Day 1 pre-infusion
Change From Baseline in Selected Hematology Parameters IBaseline and last lab measurement collected in Cycle 2 (Last measurement could be taken either on Day 1, 8, 15 or 22)Baseline values are defined as the last assessment of a particular parameter prior to administration of the participants first dose.
Change From Baseline in Selected Hematology Parameters IIBaseline and last lab measurement collected in Cycle 2 (Last measurement could be taken either on Day 1, 8, 15 or 22)Baseline values are defined as the last assessment of a particular parameter prior to administration of the participants first dose.
Change From Baseline in Selected Chemistry Parameters IBaseline and last lab measurement collected in Cycle 2 (Last measurement could be taken either on Day 1, 8, 15 or 22)Baseline values are defined as the last assessment of a particular parameter prior to administration of the participants first dose.
Change From Baseline in Selected Chemistry Parameters IIBaseline and last lab measurement collected in Cycle 2 (Last measurement could be taken either on Day 1, 8, 15 or 22)Baseline values are defined as the last assessment of a particular parameter prior to administration of the participants first dose.
Change From Baseline in Selected Chemistry Parameters IIIBaseline and last lab measurement collected in Cycle 2 (Last measurement could be taken either on Day 1, 8, 15 or 22)Baseline values are defined as the last assessment of a particular parameter prior to administration of the participants first dose.
Change From Baseline in Selected Chemistry Parameters IVBaseline and last lab measurement collected in Cycle 2 (Last measurement could be taken either on Day 1, 8, 15 or 22)Baseline values are defined as the last assessment of a particular parameter prior to administration of the participants first dose.
Number of Participants With Treatment-emergent Adverse Events (TEAEs)From first dose to 90 days after last dose of durvalumab or 28 days after last dose of azacitidine proir to the extension study (up to approximately 34 months)Treatment emergent adverse events are adverse events (AEs) that occurred or worsened on or after the first dose of study drug (durvalumab or azacitidine) and within 90 days after last dose of durvalumab or 28 days after last dose of azacitidine. A treatment-related TEAE is a TEAE where the causal relationship was assessed by the investigator as Suspected. The intensity of AEs was graded according to the Common Terminology Criteria for Adverse Events (CTCAE) Version 4.03: Grade 1 (Mild): asymptomatic or mild symptoms; clinical or diagnostic observations only; intervention not indicated. Grade 2 (Moderate): minimal, local or noninvasive intervention indicated; limiting age-appropriate activities of daily living. Grade 3: Severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; limiting self care. Grade 4: Life-threatening consequences; urgent intervention indicated. Grade 5: Death due to AE.
MDS Cohort: Kaplan Meier Estimate of Relapse-free SurvivalFrom randomization to to the date of disease relapse or death from any cause, whichever occurred first (up to approximately 34 months)Relapse-free survival is defined as the time from the date of first documented response (complete remission (CR), partial remission (PR)) to the date of disease relapse or death from any cause, whichever occurred first according to the International Working Group (IWG) 2006 response criteria for MDS and central review. Participants who were still alive and progression-free were censored at the date of their last response assessment. Participants who received a subsequent therapy before the date of disease relapse or death were censored at the time of subsequent therapy. Relapse after CR or PR is defined as at least one of the following: •Return to pretreatment bone marrow blast % •Decrement of ≥ 50% from maximum remission/response levels in granulocytes or platelets •Reduction in hemoglobin concentration by ≥ 1.5 g/dL or transfusion dependence. Response was assessed following every 3 treatment cycles until treatment discontinuation.

Countries

Austria, Belgium, Canada, France, Germany, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom, United States

Participant flow

Recruitment details

This study consisted of 2 cohorts: • Adults with previously untreated intermediate, high or very high risk myelodysplastic syndromes (MDS) not eligible for hematopoietic stem cell transplantation (HSCT). • Adults with previously untreated acute myeloid leukemia (AML) ≥ 65 years and not eligible for HSCT with intermediate or poor cytogenetic risk.

Pre-assignment details

Within each cohort participants were randomized in a 1:1 ratio to receive either azacitidine plus durvalumab or azacitidine alone. Randomization was stratified according to cytogenetic risk: • Very good, good and intermediate versus poor and very poor for MDS • Intermediate versus poor for AML .

Participants by arm

ArmCount
MDS: Azacitidine + Durvalumab
Participants with MDS received 75 mg/m² subcutaneous azacitidine for 7 days every 4 weeks (Q4W) in combination with 1500 mg intravenous durvalumab on Day 1 of every 4 week cycle for at least 6 cycles. Participants who benefited from treatment may have continued treatment until loss of that benefit, disease progression or other treatment discontinuation criterion were met.
42
MDS: Azacitidine Alone
Participants with MDS received 75 mg/m² subcutaneous azacitidine for 7 days every 4 weeks for at least 6 cycles. Participants who benefited from treatment may have continued treatment until loss of that benefit, disease progression or other treatment discontinuation criterion were met.
42
AML: Azacitidine + Durvalumab
Participants with AML received 75 mg/m² subcutaneous azacitidine for 7 days every 4 weeks (Q4W) in combination with 1500 mg intravenous durvalumab on Day 1 of every 4 week cycle for at least 6 cycles. Participants who benefited from treatment may have continued treatment until loss of that benefit, disease progression or other treatment discontinuation criterion were met.
64
AML: Azacitidine Alone
Participants with AML received 75 mg/m² subcutaneous azacitidine for 7 days every 4 weeks for at least 6 cycles. Participants who benefited from treatment may have continued treatment until loss of that benefit, disease progression or other treatment discontinuation criterion were met.
65
Total213

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyAdverse Event01123
Overall StudyDeath7111211
Overall StudyLack of Efficacy2226
Overall StudyOther reasons78212
Overall StudyProgressive disease15143020
Overall StudyWithdrawal by Subject7558

Baseline characteristics

CharacteristicAML: Azacitidine + DurvalumabAML: Azacitidine AloneTotalMDS: Azacitidine AloneMDS: Azacitidine + Durvalumab
Age, Continuous
AML
76.2 years
STANDARD_DEVIATION 5.97
75.3 years
STANDARD_DEVIATION 5.36
75.8 years
STANDARD_DEVIATION 5.67
Age, Continuous
MDS
72.8 years
STANDARD_DEVIATION 7.72
73.2 years
STANDARD_DEVIATION 8.83
72.5 years
STANDARD_DEVIATION 6.53
Age, Customized
AML Cohort
≥ 65 to < 75 years
24 Participants28 Participants52 Participants
Age, Customized
AML Cohort
< 65 years
0 Participants0 Participants0 Participants
Age, Customized
AML Cohort
≥ 75 years
40 Participants37 Participants77 Participants
Age, Customized
MDS Cohort
≥ 65 to < 75 years
32 Participants11 Participants21 Participants
Age, Customized
MDS Cohort
< 65 years
12 Participants10 Participants2 Participants
Age, Customized
MDS Cohort
≥ 75 years
40 Participants21 Participants19 Participants
Cytogenetic Risk Classifications (AML Cohort)
Better risk
0 Participants0 Participants0 Participants
Cytogenetic Risk Classifications (AML Cohort)
Intermediate risk
25 Participants26 Participants51 Participants
Cytogenetic Risk Classifications (AML Cohort)
Missing
23 Participants23 Participants46 Participants
Cytogenetic Risk Classifications (AML Cohort)
Poor risk
16 Participants16 Participants32 Participants
Eastern Cooperative Oncology Group (ECOG) Performance Status
AML Cohort
0 - Fully active
19 Participants26 Participants45 Participants
Eastern Cooperative Oncology Group (ECOG) Performance Status
AML Cohort
1 - Restricted but ambulatory
40 Participants32 Participants72 Participants
Eastern Cooperative Oncology Group (ECOG) Performance Status
AML Cohort
2 - Ambulatory but unable to work
5 Participants7 Participants12 Participants
Eastern Cooperative Oncology Group (ECOG) Performance Status
AML Cohort
3 - Limited self-care
0 Participants0 Participants0 Participants
Eastern Cooperative Oncology Group (ECOG) Performance Status
AML Cohort
4 - Completely Disabled
0 Participants0 Participants0 Participants
Eastern Cooperative Oncology Group (ECOG) Performance Status
AML Cohort
Missing
0 Participants0 Participants0 Participants
Eastern Cooperative Oncology Group (ECOG) Performance Status
MDS Cohort
0 - Fully active
35 Participants18 Participants17 Participants
Eastern Cooperative Oncology Group (ECOG) Performance Status
MDS Cohort
1 - Restricted but ambulatory
40 Participants20 Participants20 Participants
Eastern Cooperative Oncology Group (ECOG) Performance Status
MDS Cohort
2 - Ambulatory but unable to work
7 Participants4 Participants3 Participants
Eastern Cooperative Oncology Group (ECOG) Performance Status
MDS Cohort
3 - Limited self-care
0 Participants0 Participants0 Participants
Eastern Cooperative Oncology Group (ECOG) Performance Status
MDS Cohort
4 - Completely Disabled
0 Participants0 Participants0 Participants
Eastern Cooperative Oncology Group (ECOG) Performance Status
MDS Cohort
Missing
2 Participants0 Participants2 Participants
Ethnicity (NIH/OMB)
AML Cohort
Hispanic or Latino
6 Participants3 Participants9 Participants
Ethnicity (NIH/OMB)
AML Cohort
Not Hispanic or Latino
39 Participants41 Participants80 Participants
Ethnicity (NIH/OMB)
AML Cohort
Unknown or Not Reported
19 Participants21 Participants40 Participants
Ethnicity (NIH/OMB)
MDS Cohort
Hispanic or Latino
7 Participants2 Participants5 Participants
Ethnicity (NIH/OMB)
MDS Cohort
Not Hispanic or Latino
63 Participants33 Participants30 Participants
Ethnicity (NIH/OMB)
MDS Cohort
Unknown or Not Reported
14 Participants7 Participants7 Participants
Race/Ethnicity, Customized
AML Cohort
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
AML Cohort
Asian
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
AML Cohort
Black or African American
0 Participants1 Participants1 Participants
Race/Ethnicity, Customized
AML Cohort
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
AML Cohort
Not Collected or Reported
18 Participants21 Participants39 Participants
Race/Ethnicity, Customized
AML Cohort
Other
1 Participants1 Participants2 Participants
Race/Ethnicity, Customized
AML Cohort
White
45 Participants42 Participants87 Participants
Race/Ethnicity, Customized
MDS Cohort
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
MDS Cohort
Asian
3 Participants1 Participants2 Participants
Race/Ethnicity, Customized
MDS Cohort
Black or African American
1 Participants0 Participants1 Participants
Race/Ethnicity, Customized
MDS Cohort
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
MDS Cohort
Not Collected or Reported
12 Participants5 Participants7 Participants
Race/Ethnicity, Customized
MDS Cohort
Other
5 Participants3 Participants2 Participants
Race/Ethnicity, Customized
MDS Cohort
White
63 Participants33 Participants30 Participants
Revised International Prognostic Scoring System (IPSS-R) Cytogenetic Risk Groups (MDS Cohort)
Good
20 Participants10 Participants10 Participants
Revised International Prognostic Scoring System (IPSS-R) Cytogenetic Risk Groups (MDS Cohort)
Intermediate
17 Participants8 Participants9 Participants
Revised International Prognostic Scoring System (IPSS-R) Cytogenetic Risk Groups (MDS Cohort)
Poor
17 Participants9 Participants8 Participants
Revised International Prognostic Scoring System (IPSS-R) Cytogenetic Risk Groups (MDS Cohort)
Very good
2 Participants1 Participants1 Participants
Revised International Prognostic Scoring System (IPSS-R) Cytogenetic Risk Groups (MDS Cohort)
Very Poor
28 Participants14 Participants14 Participants
Sex: Female, Male
AML Cohort
Female
24 Participants34 Participants58 Participants
Sex: Female, Male
AML Cohort
Male
40 Participants31 Participants71 Participants
Sex: Female, Male
MDS Cohort
Female
26 Participants12 Participants14 Participants
Sex: Female, Male
MDS Cohort
Male
58 Participants30 Participants28 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
22 / 3827 / 4148 / 6442 / 62
other
Total, other adverse events
38 / 3840 / 4163 / 6460 / 62
serious
Total, serious adverse events
34 / 3829 / 4156 / 6445 / 62

Outcome results

Primary

AML Cohort: Overall Response Rate

Overall response rate for AML is defined as the percentage of participants achieving an overall response of morphologic complete remission (CR) or morphologic complete remission with incomplete blood count recovery (CRi) based on modified IWG 2003 response criteria for AML and central review. CR: The following conditions must be met: •Absolute neutrophil count (ANC) ≥ 1.0 x10⁹/L •Platelet count ≥ 100 x10⁹/L •The bone marrow should contain less than 5% blast cells; •Auer rods should not be detectable; •No platelet, or whole blood transfusions for 7days prior to the date of the hematology assessment. CRi: Defined as a morphologic complete remission but the ANC count may be \< 1.0 x10⁹/L and/or the platelet count may be \< 100 x10⁹/L.

Time frame: Response was assessed following every 3 treatment cycles until treatment discontinuation; median duration of treatment was 198 days (AZA) and 171 days (DUR) in the AZA + DUR group and 203 days in the AZA alone group.

Population: All randomized participants in the AML cohort; participants who discontinued before 6 cycles of treatment without achieving overall response were counted as non-responders.

ArmMeasureValue (NUMBER)
MDS: Azacitidine + DurvalumabAML Cohort: Overall Response Rate31.3 percentage of participants
MDS: Azacitidine AloneAML Cohort: Overall Response Rate35.4 percentage of participants
p-value: 0.618Wald asymptotic two-sided test
Primary

MDS Cohort: Overall Response Rate

Overall response rate (ORR) is defined as the percentage of participants achieving a complete remission (CR), partial remission (PR), marrow complete remission (mCR), and/or hematological improvement (HI) based on International Working Group (IWG) 2006 response criteria for MDS and central review. CR: ≤ 5% myeloblasts in bone marrow (BM), and peripheral blood: hemoglobin ≥ 11 g/dL; platelets ≥ 100 × 10⁹/L; neutrophils ≥ 1.0 × 10⁹/L; blasts 0% PR: BM blasts decreased by ≥ 50% but still \> 5%; peripheral blood as for CR mCR: BM ≤ 5% myeloblasts and decrease by ≥ 50% HI: Any of the following: •Hemoglobin increase by ≥ 1.5 g/dL or reduction of units of red blood cell (RBC) transfusions of at least 4 RBC transfusions/8 weeks compared with pretreatment •Absolute increase in platelets of ≥ 30 × 10⁹/L if pretreatment value \> 20 × 10⁹/L or increase from \< 20 × 10⁹/L to \> 20 × 10⁹/L and by at least 100% •At least 100% increase in neutrophils and an absolute increase of \> 0.5 × 10⁹/L

Time frame: Response was assessed following every 3 treatment cycles until treatment discontinuation; median duration of treatment was 239 days (AZA) and 215 days (DUR) in the AZA + DUR group and 210 days in the AZA alone group.

Population: All randomized participants in the MDS cohort; participants who discontinued before 6 cycles of treatment without achieving overall response were counted as non-responders.

ArmMeasureValue (NUMBER)
MDS: Azacitidine + DurvalumabMDS Cohort: Overall Response Rate61.9 percentage of participants
MDS: Azacitidine AloneMDS Cohort: Overall Response Rate47.6 percentage of participants
p-value: 0.1838Wald asymptotic two-sided test
Secondary

AML Cohort: Kaplan-Meier Estimate of Duration of Response

Duration of response is defined as the time from the first response morphologic complete remission (CR) or morphologic complete remission with incomplete blood count recovery (CRi)) was observed until relapse, PD, or death based on the IWG 2003 response criteria and central review. If no relapse, PD, or death was observed, the duration of response was censored at the last response assessment date that the participant was known to be progression-free. Response was assessed following every 3 treatment cycles until treatment discontinuation.

Time frame: From randomization until relapse, PD, or death (up to approximately 34 months)

Population: Participants randomized in the AML cohort with an objective response (CR or CRi)

ArmMeasureValue (MEDIAN)
MDS: Azacitidine + DurvalumabAML Cohort: Kaplan-Meier Estimate of Duration of Response24.6 Weeks
MDS: Azacitidine AloneAML Cohort: Kaplan-Meier Estimate of Duration of Response52.0 Weeks
p-value: 0.0381Log Rank
Secondary

AML Cohort: Kaplan Meier Estimate of Relapse-free Survival

Relapse-free survival is defined as time from the date of first documented response (morphologic complete remission (CR) or morphologic complete remission with incomplete blood count recovery (CRi)) to the date of disease relapse or death from any cause, whichever occurred first based on the modified International Working Group (IWG) 2003 response criteria for AML and central review. Participants who were still alive and progression-free were censored at the date of their last response assessment. Participants who received a subsequent therapy before the date of disease relapse or death were censored at the time of subsequent therapy.

Time frame: From randomization to the date of disease relapse or death from any cause, whichever occurred first (up to approximately 34 months)

Population: Participants randomized in the AML cohort with a response (CR or CRi)

ArmMeasureValue (MEDIAN)
MDS: Azacitidine + DurvalumabAML Cohort: Kaplan Meier Estimate of Relapse-free Survival9.5 Months
MDS: Azacitidine AloneAML Cohort: Kaplan Meier Estimate of Relapse-free Survival12.2 Months
p-value: 0.0688Log Rank
Secondary

AML Cohort: Kaplan Meier Estimate of Time to First Response

Time to first response is defined as the time between the date of randomization and the earliest date any response (CR or CRi) was observed based on the modified International Working Group (IWG) 2003 response criteria for AML and central review. Participants who did not achieve any defined response were censored at the date of last adequate response assessment, disease progression, or death, whichever occurred first. Response was assessed following every 3 treatment cycles until treatment discontinuation.

Time frame: From randomization and the earliest date any response (up to approximately 34 months)

Population: All participants randomized in the AML cohort

ArmMeasureValue (MEDIAN)
MDS: Azacitidine + DurvalumabAML Cohort: Kaplan Meier Estimate of Time to First ResponseNA Weeks
MDS: Azacitidine AloneAML Cohort: Kaplan Meier Estimate of Time to First Response25.3 Weeks
p-value: 0.2409Log Rank
Secondary

AML Cohort: Percentage of Participants Who Achieved a Complete Cytogenetic Response

Complete cytogenetic response (CyCR) based on the modified International Working Group (IWG) 2003 response criteria is defined as morphologic complete remission with a reversion to a normal karyotype. The following conditions must be met: • Absolute neutrophil count (ANC) ≥ 1.0 x10⁹/L • Platelet count ≥ 100 x10⁹/L • The bone marrow should contain less than 5% blast cells; • Auer rods should not be detectable; • No platelet, or whole blood transfusions for 7days prior to the date of the hematology assessment. AND • Reversion to normal karyotype at time of CR (based on ≥ 10 metaphases). Response was assessed following every 3 treatment cycles until treatment discontinuation.

Time frame: From randomization up to approximately 34 months)

Population: Participants randomized in the AML cohort evaluable for cytogenetic response (ie participants with baseline cytogenetic abnormalities).

ArmMeasureValue (NUMBER)
MDS: Azacitidine + DurvalumabAML Cohort: Percentage of Participants Who Achieved a Complete Cytogenetic Response11.3 Percentage of participants
MDS: Azacitidine AloneAML Cohort: Percentage of Participants Who Achieved a Complete Cytogenetic Response16.0 Percentage of participants
p-value: 0.4894Wald asymptotic two-sided test
Secondary

AML Cohort: Percentage of Participants With Hematologic Improvement

Hematological improvement was defined as participants with a erythroid response (HI-E), platelet response (HI-P) or neutrophil response (HI-NE) for at least 8 weeks, according to the IWG 2006 response criteria: Hi-E (in participants with pretreatment hemoglobin \< 11 g/dL or red blood cell (RBC)-transfusion dependent): Hemoglobin increase of ≥ 1.5 g/dL, or reduction in units of RBC transfusions of at least 4 RBC transfusions/8 weeks compared with the 8 weeks prior to pretreatment. HI-P (in participants with pretreatment platelet count \< 100 × 10⁹/L): Absolute increase in platelets of ≥ 30 × 10⁹/L if pretreatment value \> 20 × 10⁹/L or increase from \< 20 × 10⁹/L to \> 20 × 10⁹/L and by at least 100%. HI-N (in participants with pretreatment neutrophils \< 1.0 × 10⁹/L): At least 100% increase in neutrophils and an absolute increase of \> 0.5 × 10⁹/L. Response was assessed following every 3 treatment cycles until treatment discontinuation.

Time frame: From randomization up to approximately 34 months

Population: All participants randomized in the AML cohort (the percentage of participants with hematologic improvement was a pre-specified secondary endpoint for the AML cohort only).

ArmMeasureValue (NUMBER)
MDS: Azacitidine + DurvalumabAML Cohort: Percentage of Participants With Hematologic Improvement42.2 Percentage of participants
MDS: Azacitidine AloneAML Cohort: Percentage of Participants With Hematologic Improvement38.5 Percentage of participants
Secondary

Change From Baseline in Selected Chemistry Parameters I

Baseline values are defined as the last assessment of a particular parameter prior to administration of the participants first dose.

Time frame: Baseline and last lab measurement collected in Cycle 2 (Last measurement could be taken either on Day 1, 8, 15 or 22)

Population: All treated participants with both non-missing baseline and postbaseline values

ArmMeasureValue (MEAN)Dispersion
MDS: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters I-1.8 g/LStandard Deviation 4.01
MDS: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters I-1.1 g/LStandard Deviation 2.93
AML: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters I-1.8 g/LStandard Deviation 5
AML: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters I-3.8 g/LStandard Deviation 4.78
Secondary

Change From Baseline in Selected Chemistry Parameters II

Baseline values are defined as the last assessment of a particular parameter prior to administration of the participants first dose.

Time frame: Baseline and last lab measurement collected in Cycle 2 (Last measurement could be taken either on Day 1, 8, 15 or 22)

Population: All treated participants with both non-missing baseline and postbaseline values

ArmMeasureGroupValue (MEAN)Dispersion
MDS: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IIAlkaline Phosphatase (U/L)8.7 U/LStandard Deviation 15.71
MDS: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IIAlanine Aminotransferase (U/L)3.6 U/LStandard Deviation 16.96
MDS: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IIAspartate Aminotransferase (U/L)0.9 U/LStandard Deviation 10.52
MDS: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IILipase (U/L)-5.4 U/LStandard Deviation 18.23
MDS: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IIAlanine Aminotransferase (U/L)0.4 U/LStandard Deviation 9.4
MDS: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IIAspartate Aminotransferase (U/L)-0.8 U/LStandard Deviation 5.73
MDS: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IILipase (U/L)-10.2 U/LStandard Deviation 25.8
MDS: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IIAlkaline Phosphatase (U/L)4.5 U/LStandard Deviation 13.9
AML: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IIAspartate Aminotransferase (U/L)-0.9 U/LStandard Deviation 16.83
AML: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IIAlanine Aminotransferase (U/L)0.3 U/LStandard Deviation 21.05
AML: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IILipase (U/L)-2.0 U/LStandard Deviation 10.28
AML: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IIAlkaline Phosphatase (U/L)12.3 U/LStandard Deviation 55.7
AML: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IILipase (U/L)3.1 U/LStandard Deviation 42.85
AML: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IIAlanine Aminotransferase (U/L)4.0 U/LStandard Deviation 19.41
AML: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IIAlkaline Phosphatase (U/L)15.5 U/LStandard Deviation 68.53
AML: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IIAspartate Aminotransferase (U/L)0.5 U/LStandard Deviation 14.22
Secondary

Change From Baseline in Selected Chemistry Parameters III

Baseline values are defined as the last assessment of a particular parameter prior to administration of the participants first dose.

Time frame: Baseline and last lab measurement collected in Cycle 2 (Last measurement could be taken either on Day 1, 8, 15 or 22)

Population: All treated participants with both non-missing baseline and postbaseline values

ArmMeasureGroupValue (MEAN)Dispersion
MDS: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IIICalcium (mmol/L)0.004 mmol/LStandard Deviation 0.1013
MDS: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IIIGlucose (mmol/L)-0.40 mmol/LStandard Deviation 2.21
MDS: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IIIPotassium (mmol/L)0.15 mmol/LStandard Deviation 0.416
MDS: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IIISodium (mmol/L)-0.2 mmol/LStandard Deviation 2.93
MDS: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IIIGlucose (mmol/L)-0.19 mmol/LStandard Deviation 1.265
MDS: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IIIPotassium (mmol/L)-0.01 mmol/LStandard Deviation 0.451
MDS: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IIISodium (mmol/L)0.3 mmol/LStandard Deviation 3.26
MDS: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IIICalcium (mmol/L)0.016 mmol/LStandard Deviation 0.1008
AML: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IIIPotassium (mmol/L)0.02 mmol/LStandard Deviation 0.411
AML: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IIIGlucose (mmol/L)-0.38 mmol/LStandard Deviation 2.513
AML: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IIISodium (mmol/L)-0.6 mmol/LStandard Deviation 4.49
AML: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IIICalcium (mmol/L)-0.003 mmol/LStandard Deviation 0.1523
AML: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IIISodium (mmol/L)-1.6 mmol/LStandard Deviation 3.73
AML: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IIIGlucose (mmol/L)-0.02 mmol/LStandard Deviation 2.365
AML: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IIICalcium (mmol/L)-0.039 mmol/LStandard Deviation 0.1189
AML: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IIIPotassium (mmol/L)0.04 mmol/LStandard Deviation 0.622
Secondary

Change From Baseline in Selected Chemistry Parameters IV

Baseline values are defined as the last assessment of a particular parameter prior to administration of the participants first dose.

Time frame: Baseline and last lab measurement collected in Cycle 2 (Last measurement could be taken either on Day 1, 8, 15 or 22)

Population: All treated participants with both non-missing baseline and postbaseline values

ArmMeasureGroupValue (MEAN)Dispersion
MDS: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IVBilirubin (umol/L)2.2 umol/LStandard Deviation 5.13
MDS: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IVUrate (umol/L)6.8 umol/LStandard Deviation 65.85
MDS: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IVCreatinine (umol/L)-4.0 umol/LStandard Deviation 14.77
MDS: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IVBilirubin (umol/L)1.2 umol/LStandard Deviation 4.21
MDS: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IVUrate (umol/L)-3.2 umol/LStandard Deviation 67.06
MDS: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IVCreatinine (umol/L)-2.9 umol/LStandard Deviation 10.19
AML: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IVCreatinine (umol/L)2.3 umol/LStandard Deviation 16.39
AML: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IVBilirubin (umol/L)2.4 umol/LStandard Deviation 6.23
AML: Azacitidine + DurvalumabChange From Baseline in Selected Chemistry Parameters IVUrate (umol/L)-15.1 umol/LStandard Deviation 75.69
AML: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IVBilirubin (umol/L)-0.0 umol/LStandard Deviation 5.31
AML: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IVUrate (umol/L)-29.1 umol/LStandard Deviation 80.85
AML: Azacitidine AloneChange From Baseline in Selected Chemistry Parameters IVCreatinine (umol/L)-0.6 umol/LStandard Deviation 15.93
Secondary

Change From Baseline in Selected Hematology Parameters I

Baseline values are defined as the last assessment of a particular parameter prior to administration of the participants first dose.

Time frame: Baseline and last lab measurement collected in Cycle 2 (Last measurement could be taken either on Day 1, 8, 15 or 22)

Population: All treated participants with both non-missing baseline and postbaseline values

ArmMeasureGroupValue (MEAN)Dispersion
MDS: Azacitidine + DurvalumabChange From Baseline in Selected Hematology Parameters ILeukocytes (10^9/L)-1.330 10^9 cells/LStandard Deviation 2.8158
MDS: Azacitidine + DurvalumabChange From Baseline in Selected Hematology Parameters ILymphocytes (10^9/L)-0.242 10^9 cells/LStandard Deviation 0.5314
MDS: Azacitidine + DurvalumabChange From Baseline in Selected Hematology Parameters INeutrophils, Segmented (10^9/L)-0.665 10^9 cells/LStandard Deviation 1.6364
MDS: Azacitidine + DurvalumabChange From Baseline in Selected Hematology Parameters IPlatelets (10^9/L)26.7 10^9 cells/LStandard Deviation 112.92
MDS: Azacitidine AloneChange From Baseline in Selected Hematology Parameters ILymphocytes (10^9/L)-0.085 10^9 cells/LStandard Deviation 0.3904
MDS: Azacitidine AloneChange From Baseline in Selected Hematology Parameters INeutrophils, Segmented (10^9/L)-0.266 10^9 cells/LStandard Deviation 0.7576
MDS: Azacitidine AloneChange From Baseline in Selected Hematology Parameters IPlatelets (10^9/L)-2.6 10^9 cells/LStandard Deviation 82.05
MDS: Azacitidine AloneChange From Baseline in Selected Hematology Parameters ILeukocytes (10^9/L)-0.497 10^9 cells/LStandard Deviation 1.1452
AML: Azacitidine + DurvalumabChange From Baseline in Selected Hematology Parameters INeutrophils, Segmented (10^9/L)0.646 10^9 cells/LStandard Deviation 0.787
AML: Azacitidine + DurvalumabChange From Baseline in Selected Hematology Parameters ILymphocytes (10^9/L)-0.394 10^9 cells/LStandard Deviation 1.6995
AML: Azacitidine + DurvalumabChange From Baseline in Selected Hematology Parameters IPlatelets (10^9/L)25.9 10^9 cells/LStandard Deviation 92.86
AML: Azacitidine + DurvalumabChange From Baseline in Selected Hematology Parameters ILeukocytes (10^9/L)-2.050 10^9 cells/LStandard Deviation 9.0236
AML: Azacitidine AloneChange From Baseline in Selected Hematology Parameters IPlatelets (10^9/L)-0.9 10^9 cells/LStandard Deviation 167.88
AML: Azacitidine AloneChange From Baseline in Selected Hematology Parameters ILymphocytes (10^9/L)-0.262 10^9 cells/LStandard Deviation 0.9024
AML: Azacitidine AloneChange From Baseline in Selected Hematology Parameters ILeukocytes (10^9/L)-0.941 10^9 cells/LStandard Deviation 2.7708
AML: Azacitidine AloneChange From Baseline in Selected Hematology Parameters INeutrophils, Segmented (10^9/L)-0.102 10^9 cells/LStandard Deviation 0.7346
Secondary

Change From Baseline in Selected Hematology Parameters II

Baseline values are defined as the last assessment of a particular parameter prior to administration of the participants first dose.

Time frame: Baseline and last lab measurement collected in Cycle 2 (Last measurement could be taken either on Day 1, 8, 15 or 22)

Population: All treated participants with both non-missing baseline and postbaseline values

ArmMeasureValue (MEAN)Dispersion
MDS: Azacitidine + DurvalumabChange From Baseline in Selected Hematology Parameters II2.1 g/LStandard Deviation 15.66
MDS: Azacitidine AloneChange From Baseline in Selected Hematology Parameters II5.7 g/LStandard Deviation 18.94
AML: Azacitidine + DurvalumabChange From Baseline in Selected Hematology Parameters II2.2 g/LStandard Deviation 13.67
AML: Azacitidine AloneChange From Baseline in Selected Hematology Parameters II-3.0 g/LStandard Deviation 13.91
Secondary

Durvalumab Serum Concentration

Time frame: Cycle 1 Day 1 end of infusion (EOI), Cycle 2 Day 1 pre-infusion, Cycle 4 Day 1 pre-infusion and EOI, and Cycle 6 Day 1 pre-infusion

Population: Participants who received at least one dose of durvalumab and who had at least 1 measurable durvalumab concentration value and with available data at each time point.

ArmMeasureGroupValue (MEAN)Dispersion
MDS: Azacitidine + DurvalumabDurvalumab Serum ConcentrationCycle 2 Day 1 pre-infusion84380.032 ng/mLStandard Deviation 92174.3455
MDS: Azacitidine + DurvalumabDurvalumab Serum ConcentrationCycle 4 Day 1 end of infusion433942.600 ng/mLStandard Deviation 233241.0329
MDS: Azacitidine + DurvalumabDurvalumab Serum ConcentrationCycle 4 Day 1 pre-infusion132266.794 ng/mLStandard Deviation 126971.6223
MDS: Azacitidine + DurvalumabDurvalumab Serum ConcentrationCycle 6 Day 1 pre-infusion114448.977 ng/mLStandard Deviation 64608.9007
MDS: Azacitidine + DurvalumabDurvalumab Serum ConcentrationCycle 1 Day 1 end of infusion375548.511 ng/mLStandard Deviation 140777.0558
MDS: Azacitidine AloneDurvalumab Serum ConcentrationCycle 6 Day 1 pre-infusion142517.871 ng/mLStandard Deviation 248212.8037
MDS: Azacitidine AloneDurvalumab Serum ConcentrationCycle 1 Day 1 end of infusion378598.369 ng/mLStandard Deviation 201902.4363
MDS: Azacitidine AloneDurvalumab Serum ConcentrationCycle 2 Day 1 pre-infusion54216.956 ng/mLStandard Deviation 28336.3692
MDS: Azacitidine AloneDurvalumab Serum ConcentrationCycle 4 Day 1 pre-infusion78622.429 ng/mLStandard Deviation 41708.9956
MDS: Azacitidine AloneDurvalumab Serum ConcentrationCycle 4 Day 1 end of infusion391523.395 ng/mLStandard Deviation 147928.1261
Secondary

Kaplan-Meier Estimate of Overall Survival

Overall survival is defined as the time between randomization and death/censored date. Participants who were alive at the time of the clinical data cut-off were censored at the last known alive date.

Time frame: From randomization to date of death or last known alive date (up to approximately 34 months)

Population: All randomized participants

ArmMeasureValue (MEDIAN)
MDS: Azacitidine + DurvalumabKaplan-Meier Estimate of Overall Survival11.6 Months
MDS: Azacitidine AloneKaplan-Meier Estimate of Overall Survival16.3 Months
AML: Azacitidine + DurvalumabKaplan-Meier Estimate of Overall Survival13.0 Months
AML: Azacitidine AloneKaplan-Meier Estimate of Overall Survival14.4 Months
p-value: 0.8973Log Rank
p-value: 0.0691Log Rank
Secondary

MDS Cohort: Kaplan-Meier Estimate of Duration of Response

Duration of response is defined as the time from when the first overall response (complete remission (CR), partial remission (PR), marrow complete remission (mCR), and/or hematological improvement (HI)) was observed until relapse, progressive disease (PD), or death, as defined by the International Working Group (IWG) 2006 response criteria and central review. If no relapse, PD, or death was observed, the duration of response was censored at the last response assessment date that the participant was known to be progression-free. Response was assessed following every 3 treatment cycles until treatment discontinuation.

Time frame: From randomization to the first overall response, or death (up to approximately 34 months)

Population: Participants randomized in the MDS cohort with an overall response (CR, mCR, PR, or HI)

ArmMeasureValue (MEDIAN)
MDS: Azacitidine + DurvalumabMDS Cohort: Kaplan-Meier Estimate of Duration of Response33.9 Weeks
MDS: Azacitidine AloneMDS Cohort: Kaplan-Meier Estimate of Duration of Response39.7 Weeks
p-value: 0.3591Log Rank
Secondary

MDS Cohort: Kaplan-Meier Estimate of Progression-free Survival (PFS)

Progression-free survival is defined as the time from randomization to the first documented progressive disease (PD), relapse, or death due to any cause during or after the treatment period, whichever occurred first, according to the International Working Group (IWG) 2006 response criteria for MDS and central review. Participants who were still alive and progression-free were censored at the date of their last response assessment. Progressive disease is defined as follows: - an increase in BM blasts relative to nadir: •If nadir less than 5% blasts: ≥ 50% increase in blasts to \> 5% blasts •If nadir 5% - 10% blasts: ≥ 50% increase in blasts to \> 10% blasts •If nadir 10% - 20% blasts: ≥ 50% increase in blasts to \> 20% blasts •If nadir 20% - 30% blasts: ≥ 50% increase in blasts to \> 30% blasts And any of the following: •At least 50% decrement from maximum remission/response levels in granulocytes or platelets •Reduction in Hgb concentration by ≥ 2 g/dL •Transfusion dependence

Time frame: From randomization to the first documented progressive disease (PD), relapse, or death due to any cause (up to approximately 34 months)

Population: All participants randomized in the MDS cohort (PFS was a pre-specified secondary outcome measure in the MDS cohort only).

ArmMeasureValue (MEDIAN)
MDS: Azacitidine + DurvalumabMDS Cohort: Kaplan-Meier Estimate of Progression-free Survival (PFS)8.7 Months
MDS: Azacitidine AloneMDS Cohort: Kaplan-Meier Estimate of Progression-free Survival (PFS)8.6 Months
p-value: 0.8961Log Rank
Secondary

MDS Cohort: Kaplan Meier Estimate of Relapse-free Survival

Relapse-free survival is defined as the time from the date of first documented response (complete remission (CR), partial remission (PR)) to the date of disease relapse or death from any cause, whichever occurred first according to the International Working Group (IWG) 2006 response criteria for MDS and central review. Participants who were still alive and progression-free were censored at the date of their last response assessment. Participants who received a subsequent therapy before the date of disease relapse or death were censored at the time of subsequent therapy. Relapse after CR or PR is defined as at least one of the following: •Return to pretreatment bone marrow blast % •Decrement of ≥ 50% from maximum remission/response levels in granulocytes or platelets •Reduction in hemoglobin concentration by ≥ 1.5 g/dL or transfusion dependence. Response was assessed following every 3 treatment cycles until treatment discontinuation.

Time frame: From randomization to to the date of disease relapse or death from any cause, whichever occurred first (up to approximately 34 months)

Population: Participants randomized in the MDS cohort who had a CR or PR

ArmMeasureValue (MEDIAN)
MDS: Azacitidine + DurvalumabMDS Cohort: Kaplan Meier Estimate of Relapse-free Survival3.7 Months
MDS: Azacitidine AloneMDS Cohort: Kaplan Meier Estimate of Relapse-free SurvivalNA Months
p-value: 0.6076Log Rank
Secondary

MDS Cohort: Kaplan-Meier Estimate of Time to AML Transformation

Participants were monitored for transformation to acute myeloid leukemia (AML) until death, lost to follow-up, withdrawal of consent for further data collection, or the end of the trial. Time to transformation to AML is defined as the time from the date of randomization until the date the participant had documented transformation to AML (defined as at least 30% of myeloblasts in the bone marrow). Participants with no transformation to AML were censored at the date of their last disease assessment.

Time frame: From randomization to the date the participant had documented transformation to AML (up to approximately 34 months)

Population: All participants randomized in the MDS cohort.

ArmMeasureValue (MEDIAN)
MDS: Azacitidine + DurvalumabMDS Cohort: Kaplan-Meier Estimate of Time to AML Transformation20.8 Months
MDS: Azacitidine AloneMDS Cohort: Kaplan-Meier Estimate of Time to AML Transformation27.7 Months
p-value: 0.9031Log Rank
Secondary

MDS Cohort: Kaplan Meier Estimate of Time to First Response

Time to first response is defined as the time from randomization to the earliest date any response (complete remission (CR), partial remission (PR), marrow complete remission (mCR), and/or hematological improvement (HI)) based on International Working Group (IWG) 2006 response criteria for MDS and central review. Participants who did not achieve any defined response were censored at the date of last adequate response assessment, disease progression, or death, whichever occurred first. Response was assessed following every 3 treatment cycles until treatment discontinuation.

Time frame: From randomization to the earliest date any response (up to approximately 34 months)

Population: All participants randomized in the MDS cohort

ArmMeasureValue (MEDIAN)
MDS: Azacitidine + DurvalumabMDS Cohort: Kaplan Meier Estimate of Time to First Response14.3 Weeks
MDS: Azacitidine AloneMDS Cohort: Kaplan Meier Estimate of Time to First Response18.4 Weeks
p-value: 0.7016Log Rank
Secondary

MDS Cohort: Percentage of Participants Who Achieved a Cytogenetic Response

Cytogenetic response is defined as the percentage of participants who achieved a complete cytogenetic response or partial cytogenetic response according to the International Working Group (IWG) 2006 response criteria and central review. Complete cytogenetic response: Disappearance of the baseline chromosomal abnormality without appearance of new abnormalities. Partial cytogenetic response: At least 50% reduction of the chromosomal abnormality. Response was assessed following every 3 treatment cycles until treatment discontinuation.

Time frame: From randomization up to approximately 34 months

Population: Participants randomized in the MDS cohort evaluable for cytogenetic response (ie, participants with baseline cytogenetic abnormalities).

ArmMeasureValue (NUMBER)
MDS: Azacitidine + DurvalumabMDS Cohort: Percentage of Participants Who Achieved a Cytogenetic Response47.6 percentage of participants
MDS: Azacitidine AloneMDS Cohort: Percentage of Participants Who Achieved a Cytogenetic Response34.8 percentage of participants
p-value: 0.384Wald asymptotic two-sided test
Secondary

MDS Cohort: Percentage of Participants With Disease Transformation to AML

Disease transformation to acute myeloid leukemia (AML) is defined as at least 30% myeloblasts in the bone marrow. Participants were monitored for transformation to AML until death, lost to follow-up, withdrawal of consent for further data collection, or the end of the trial. Participants with no transformation to AML were censored at the date of their last disease assessment.

Time frame: From randomization until death, lost to follow-up, withdrawal of consent for further data collection, or the end of the trial (up to approximately 34 months)

Population: All participants randomized in the MDS cohort

ArmMeasureValue (NUMBER)
MDS: Azacitidine + DurvalumabMDS Cohort: Percentage of Participants With Disease Transformation to AML23.8 Percentage of participants
MDS: Azacitidine AloneMDS Cohort: Percentage of Participants With Disease Transformation to AML19.0 Percentage of participants
Secondary

Number of Participants With Treatment-emergent Adverse Events (TEAEs)

Treatment emergent adverse events are adverse events (AEs) that occurred or worsened on or after the first dose of study drug (durvalumab or azacitidine) and within 90 days after last dose of durvalumab or 28 days after last dose of azacitidine. A treatment-related TEAE is a TEAE where the causal relationship was assessed by the investigator as Suspected. The intensity of AEs was graded according to the Common Terminology Criteria for Adverse Events (CTCAE) Version 4.03: Grade 1 (Mild): asymptomatic or mild symptoms; clinical or diagnostic observations only; intervention not indicated. Grade 2 (Moderate): minimal, local or noninvasive intervention indicated; limiting age-appropriate activities of daily living. Grade 3: Severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; limiting self care. Grade 4: Life-threatening consequences; urgent intervention indicated. Grade 5: Death due to AE.

Time frame: From first dose to 90 days after last dose of durvalumab or 28 days after last dose of azacitidine proir to the extension study (up to approximately 34 months)

Population: All participants who received at least 1 dose of any study drug.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Any treatment-emergent adverse event (TEAE)38 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE related to DUR27 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE related to AZA31 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE related to DUR or AZA35 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 3 TEAE36 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 3 TEAE related to DUR18 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 3 TEAE related to AZA18 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 3 TEAE related to DUR or AZA22 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 4 TEAE33 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 4 TEAE related to DUR16 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 4 TEAE related to AZA19 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 4 TEAE related to DUR or AZA22 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 5 TEAE10 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 5 TEAE related to DUR2 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 5 TEAE related to AZA1 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 5 TEAE related to DUR or AZA2 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Serious TEAE34 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Serious TEAE related to DUR11 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Serious TEAE related to AZA9 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Serious TEAE related to DUR or AZA14 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to discontinuation of DUR5 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to discontinuation of AZA0 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to discontinuation of DUR or AZA5 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to dose reduction of AZA3 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to dose interruption of DUR24 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to dose interruption of AZA27 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to dose interruption of DUR or AZA28 Participants
MDS: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to ongoing DUR infusion interruption2 Participants
MDS: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to discontinuation of DUR or AZA1 Participants
MDS: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 5 TEAE related to AZA1 Participants
MDS: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 3 TEAE related to AZA16 Participants
MDS: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE related to AZA33 Participants
MDS: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Any treatment-emergent adverse event (TEAE)41 Participants
MDS: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 5 TEAE related to DUR or AZA1 Participants
MDS: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to discontinuation of AZA1 Participants
MDS: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Serious TEAE related to DUR or AZA10 Participants
MDS: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 4 TEAE related to DUR or AZA15 Participants
MDS: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Serious TEAE29 Participants
MDS: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 4 TEAE27 Participants
MDS: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to dose interruption of AZA19 Participants
MDS: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 3 TEAE30 Participants
MDS: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to dose interruption of DUR or AZA19 Participants
MDS: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Serious TEAE related to AZA10 Participants
MDS: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 5 TEAE9 Participants
MDS: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 3 TEAE related to DUR or AZA16 Participants
MDS: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE related to DUR or AZA33 Participants
MDS: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to dose reduction of AZA6 Participants
MDS: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 4 TEAE related to AZA15 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 3 TEAE related to DUR29 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 4 TEAE43 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 4 TEAE related to DUR18 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to discontinuation of DUR or AZA22 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 4 TEAE related to AZA27 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 4 TEAE related to DUR or AZA28 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 5 TEAE26 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 5 TEAE related to DUR1 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to dose reduction of AZA10 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 5 TEAE related to AZA1 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 5 TEAE related to DUR or AZA1 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to dose interruption of DUR or AZA41 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Serious TEAE56 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to dose interruption of DUR34 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Serious TEAE related to DUR33 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Serious TEAE related to AZA25 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Serious TEAE related to DUR or AZA34 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Any treatment-emergent adverse event (TEAE)64 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE related to DUR50 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to dose interruption of AZA39 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE related to AZA56 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to discontinuation of DUR21 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE related to DUR or AZA58 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 3 TEAE60 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to ongoing DUR infusion interruption2 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to discontinuation of AZA13 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 3 TEAE related to AZA32 Participants
AML: Azacitidine + DurvalumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 3 TEAE related to DUR or AZA38 Participants
AML: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 4 TEAE34 Participants
AML: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE related to AZA50 Participants
AML: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 4 TEAE related to AZA17 Participants
AML: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 5 TEAE11 Participants
AML: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 3 TEAE related to DUR or AZA27 Participants
AML: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE related to DUR or AZA50 Participants
AML: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to dose interruption of AZA32 Participants
AML: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to dose interruption of DUR or AZA32 Participants
AML: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 4 TEAE related to DUR or AZA17 Participants
AML: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Serious TEAE related to AZA16 Participants
AML: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Serious TEAE45 Participants
AML: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 5 TEAE related to DUR or AZA1 Participants
AML: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 3 TEAE related to AZA27 Participants
AML: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to dose reduction of AZA2 Participants
AML: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 3 TEAE50 Participants
AML: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Any treatment-emergent adverse event (TEAE)62 Participants
AML: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Serious TEAE related to DUR or AZA16 Participants
AML: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to discontinuation of DUR or AZA3 Participants
AML: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)TEAE leading to discontinuation of AZA3 Participants
AML: Azacitidine AloneNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Grade 5 TEAE related to AZA1 Participants
Secondary

One-year Survival

One-year survival is defined as the probability of survival at 1 year from randomization and is represented by the Kaplan-Meier estimate of the percentage of participants alive after 1 year.

Time frame: At 12 months after randomization

Population: All randomized participants

ArmMeasureValue (NUMBER)
MDS: Azacitidine + DurvalumabOne-year Survival49 Percentage of participants
MDS: Azacitidine AloneOne-year Survival58 Percentage of participants
AML: Azacitidine + DurvalumabOne-year Survival52 Percentage of participants
AML: Azacitidine AloneOne-year Survival55 Percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 26, 2026