Trial Outcomes & Findings for A Safety and Efficacy Study of Pracinostat and Azacitidine in Patients With High Risk Myelodysplastic Syndromes (NCT NCT03151304)

NCT ID: NCT03151304

Last Updated: 2022-03-02

Results Overview

Percentage of subjects with confirmed complete remission (CR), partial remission (PR) and marrow CR, as per modified International Working Group (IWG) criteria: CR: Bone marrow: ≤5% myeloblasts with normal maturation of all cell lines; Peripheral blood Hemoglobin (Hb) ≥11 g/dL; Platelets ≥100 × 10\^9/L; Neutrophils ≥1.0 × 10\^9/L; Blasts 0%. PR: All CR criteria if abnormal before treatment except: Bone marrow blasts decreased by ≥ 50% over pre-treatment but still \>5%; Cellularity and morphology not relevant Marrow CR: Bone marrow: ≤5% myeloblasts and decrease by ≥50% over pre-treatment

Recruitment status

TERMINATED

Study phase

PHASE2

Target enrollment

64 participants

Primary outcome timeframe

36 months

Results posted on

2022-03-02

Participant Flow

Stage 1 was to be conducted in 20-40 evaluable subjects to assess if the pracinostat dose regimen resulted in a discontinuation rate that met a predefined threshold, and the observed efficacy justified expansion of enrollment in Stage 1b. Stage 1b was conducted to achieve a planned total enrollment of 60 subjects evaluable for efficacy, inclusive of Stage 1 and Stage 1b enrollment.

Participant milestones

Participant milestones
Measure
Stage 1a and 1b Open-label Pracinostat Plus Azacitidine
open-label single arm pracinostat plus azacitidine. Pracinostat: 45 mg administered orally 3 days each week for 3 consecutive weeks, followed by 1 week of rest, in 28-day cycles. In later cycles (i.e., after Cycle 4), pracinostat dose reduction to 45 mg orally 3 days each week × 2 weeks (instead of 3 weeks) or dose interruption is allowed to manage toxicity such as fatigue, gastrointestinal toxicity, or myelosuppression. Azacitidine: 75 mg/m2 for 7 days of each 28-day cycle. Administration will occur by subcutaneous (SC) injection, or IV infusion if SC injections are not tolerated, on one of two schedules: * Schedule 1 - daily therapy on Days 1 through 7 * Schedule 2 - 5-2-2 schedule in which subjects receive azacitidine for 5 consecutive days (Days 1 through 5) with rest on Days 6 and 7, and resume azacitidine dosing the first two days of the next week (Days 8 and 9) of each 28-day cycle Pracinostat: 45 mg capsule Azacitidine: SC or IV injection
Overall Study
STARTED
64
Overall Study
COMPLETED
0
Overall Study
NOT COMPLETED
64

Reasons for withdrawal

Reasons for withdrawal
Measure
Stage 1a and 1b Open-label Pracinostat Plus Azacitidine
open-label single arm pracinostat plus azacitidine. Pracinostat: 45 mg administered orally 3 days each week for 3 consecutive weeks, followed by 1 week of rest, in 28-day cycles. In later cycles (i.e., after Cycle 4), pracinostat dose reduction to 45 mg orally 3 days each week × 2 weeks (instead of 3 weeks) or dose interruption is allowed to manage toxicity such as fatigue, gastrointestinal toxicity, or myelosuppression. Azacitidine: 75 mg/m2 for 7 days of each 28-day cycle. Administration will occur by subcutaneous (SC) injection, or IV infusion if SC injections are not tolerated, on one of two schedules: * Schedule 1 - daily therapy on Days 1 through 7 * Schedule 2 - 5-2-2 schedule in which subjects receive azacitidine for 5 consecutive days (Days 1 through 5) with rest on Days 6 and 7, and resume azacitidine dosing the first two days of the next week (Days 8 and 9) of each 28-day cycle Pracinostat: 45 mg capsule Azacitidine: SC or IV injection
Overall Study
Termination of study by Sponsor
23
Overall Study
missing
3
Overall Study
Withdrawal by Subject
8
Overall Study
multiple reasons
30

Baseline Characteristics

A Safety and Efficacy Study of Pracinostat and Azacitidine in Patients With High Risk Myelodysplastic Syndromes

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Stage 1a and 1b Open-label Pracinostat Plus Azacitidine
n=64 Participants
open-label single arm pracinostat plus azacitidine. Pracinostat: 45 mg administered orally 3 days each week for 3 consecutive weeks, followed by 1 week of rest, in 28-day cycles. In later cycles (i.e., after Cycle 4), pracinostat dose reduction to 45 mg orally 3 days each week × 2 weeks (instead of 3 weeks) or dose interruption is allowed to manage toxicity such as fatigue, gastrointestinal toxicity, or myelosuppression. Azacitidine: 75 mg/m2 for 7 days of each 28-day cycle. Administration will occur by subcutaneous (SC) injection, or IV infusion if SC injections are not tolerated, on one of two schedules: * Schedule 1 - daily therapy on Days 1 through 7 * Schedule 2 - 5-2-2 schedule in which subjects receive azacitidine for 5 consecutive days (Days 1 through 5) with rest on Days 6 and 7, and resume azacitidine dosing the first two days of the next week (Days 8 and 9) of each 28-day cycle Pracinostat: 45 mg capsule Azacitidine: SC or IV injection
Age, Continuous
67.8 years
STANDARD_DEVIATION 8.59 • n=5 Participants
Sex: Female, Male
Female
43 Participants
n=5 Participants
Sex: Female, Male
Male
21 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
57 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
4 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
1 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
3 Participants
n=5 Participants
Race (NIH/OMB)
White
57 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants
n=5 Participants
Region of Enrollment
United States
64 participants
n=5 Participants
Body Mass Index (BMI)
30.53 Kg/m^2
STANDARD_DEVIATION 5.88 • n=5 Participants

PRIMARY outcome

Timeframe: 36 months

Percentage of subjects with confirmed complete remission (CR), partial remission (PR) and marrow CR, as per modified International Working Group (IWG) criteria: CR: Bone marrow: ≤5% myeloblasts with normal maturation of all cell lines; Peripheral blood Hemoglobin (Hb) ≥11 g/dL; Platelets ≥100 × 10\^9/L; Neutrophils ≥1.0 × 10\^9/L; Blasts 0%. PR: All CR criteria if abnormal before treatment except: Bone marrow blasts decreased by ≥ 50% over pre-treatment but still \>5%; Cellularity and morphology not relevant Marrow CR: Bone marrow: ≤5% myeloblasts and decrease by ≥50% over pre-treatment

Outcome measures

Outcome measures
Measure
Stage 1a and 1b Open-label Pracinostat Plus Azacitidine
n=64 Participants
open-label single arm pracinostat plus azacitidine. Pracinostat: 45 mg administered orally 3 days each week for 3 consecutive weeks, followed by 1 week of rest, in 28-day cycles. In later cycles (i.e., after Cycle 4), pracinostat dose reduction to 45 mg orally 3 days each week × 2 weeks (instead of 3 weeks) or dose interruption is allowed to manage toxicity such as fatigue, gastrointestinal toxicity, or myelosuppression. Azacitidine: 75 mg/m2 for 7 days of each 28-day cycle. Administration will occur by subcutaneous (SC) injection, or IV infusion if SC injections are not tolerated, on one of two schedules: * Schedule 1 - daily therapy on Days 1 through 7 * Schedule 2 - 5-2-2 schedule in which subjects receive azacitidine for 5 consecutive days (Days 1 through 5) with rest on Days 6 and 7, and resume azacitidine dosing the first two days of the next week (Days 8 and 9) of each 28-day cycle Pracinostat: 45 mg capsule Azacitidine: SC or IV injection
Overall Response Rate (ORR)
35.9 percentage of subjects
Interval 24.3 to 48.9

SECONDARY outcome

Timeframe: 36 months

Percentage of subjects with confirmed CR (i.e., 2 CRs at least 28 days apart) as per modified IWG criteria: CR: Bone marrow: ≤5% myeloblasts with normal maturation of all cell lines; Peripheral blood Hb ≥11 g/dL; Platelets ≥100 × 109/L; Neutrophils ≥1.0 × 109/L; Blasts 0%.

Outcome measures

Outcome measures
Measure
Stage 1a and 1b Open-label Pracinostat Plus Azacitidine
n=64 Participants
open-label single arm pracinostat plus azacitidine. Pracinostat: 45 mg administered orally 3 days each week for 3 consecutive weeks, followed by 1 week of rest, in 28-day cycles. In later cycles (i.e., after Cycle 4), pracinostat dose reduction to 45 mg orally 3 days each week × 2 weeks (instead of 3 weeks) or dose interruption is allowed to manage toxicity such as fatigue, gastrointestinal toxicity, or myelosuppression. Azacitidine: 75 mg/m2 for 7 days of each 28-day cycle. Administration will occur by subcutaneous (SC) injection, or IV infusion if SC injections are not tolerated, on one of two schedules: * Schedule 1 - daily therapy on Days 1 through 7 * Schedule 2 - 5-2-2 schedule in which subjects receive azacitidine for 5 consecutive days (Days 1 through 5) with rest on Days 6 and 7, and resume azacitidine dosing the first two days of the next week (Days 8 and 9) of each 28-day cycle Pracinostat: 45 mg capsule Azacitidine: SC or IV injection
Complete Response (CR) Rate
35.9 percentage of subjects with CR
Interval 24.3 to 48.9

SECONDARY outcome

Timeframe: 36 months

Percentage of subjects demonstrating major hematologic improvement according to modified IWG: Erythroid response (pre-treatment, \<11 g/dL): Hb increase by ≥1.5 g/dL; Relevant reduction of units of RBC transfusions by an absolute number of at least 4 RBC transfusions/8 weeks compared with the pre-treatment transfusion number in the previous 8 weeks. Only RBC transfusions given for a Hb of ≤9.0 g/dL pre-treatment will count in the RBC transfusion response evaluation. Platelet response (pre-treatment, \<100 × 10\^9/L): Absolute increase of ≥30 × 10\^9/L for patients starting with \>20 × 10\^9/L platelets; Increase from \<20 × 10\^9/L to \>20 × 10\^9/L and by at least 100%. Neutrophil response (pre-treatment, \<1.0 × 10\^9/L): At least 100% increase and an absolute increase \>0.5 × 10\^9/L. Progression or relapse after HI: at least 1 of the following: * At least 50% decrement from maximum response levels in granulocytes or platelets * Reduction in Hb by≥1.5 g/dL * Transfusion dependence

Outcome measures

Outcome measures
Measure
Stage 1a and 1b Open-label Pracinostat Plus Azacitidine
n=63 Participants
open-label single arm pracinostat plus azacitidine. Pracinostat: 45 mg administered orally 3 days each week for 3 consecutive weeks, followed by 1 week of rest, in 28-day cycles. In later cycles (i.e., after Cycle 4), pracinostat dose reduction to 45 mg orally 3 days each week × 2 weeks (instead of 3 weeks) or dose interruption is allowed to manage toxicity such as fatigue, gastrointestinal toxicity, or myelosuppression. Azacitidine: 75 mg/m2 for 7 days of each 28-day cycle. Administration will occur by subcutaneous (SC) injection, or IV infusion if SC injections are not tolerated, on one of two schedules: * Schedule 1 - daily therapy on Days 1 through 7 * Schedule 2 - 5-2-2 schedule in which subjects receive azacitidine for 5 consecutive days (Days 1 through 5) with rest on Days 6 and 7, and resume azacitidine dosing the first two days of the next week (Days 8 and 9) of each 28-day cycle Pracinostat: 45 mg capsule Azacitidine: SC or IV injection
Overall Hematologic Improvement (HI) Response Rate
71.4 percentage of subjects with HI
Interval 58.7 to 82.1

SECONDARY outcome

Timeframe: 36 months

Percentage of subjects with confirmed CR, PR, Marrow CR, and HI with clinical benefit rate, defines as rate of CR + PR + HI + Marrow CR. All subjects who achieve hematologic CR, PR, marrow CR, or hematologic improvement on the erythrocytic lineage per modified IWG response criteria will be considered responders

Outcome measures

Outcome measures
Measure
Stage 1a and 1b Open-label Pracinostat Plus Azacitidine
n=64 Participants
open-label single arm pracinostat plus azacitidine. Pracinostat: 45 mg administered orally 3 days each week for 3 consecutive weeks, followed by 1 week of rest, in 28-day cycles. In later cycles (i.e., after Cycle 4), pracinostat dose reduction to 45 mg orally 3 days each week × 2 weeks (instead of 3 weeks) or dose interruption is allowed to manage toxicity such as fatigue, gastrointestinal toxicity, or myelosuppression. Azacitidine: 75 mg/m2 for 7 days of each 28-day cycle. Administration will occur by subcutaneous (SC) injection, or IV infusion if SC injections are not tolerated, on one of two schedules: * Schedule 1 - daily therapy on Days 1 through 7 * Schedule 2 - 5-2-2 schedule in which subjects receive azacitidine for 5 consecutive days (Days 1 through 5) with rest on Days 6 and 7, and resume azacitidine dosing the first two days of the next week (Days 8 and 9) of each 28-day cycle Pracinostat: 45 mg capsule Azacitidine: SC or IV injection
Clinical Benefit Rate
78.1 percentage of subjects with benefit rate
Interval 66.0 to 87.5

SECONDARY outcome

Timeframe: 36 months

Percentage of subjects with confirmed CR by cytogenetic assessment. Complete cytogenetic response is defined per modified IWG response criteria: Complete: Disappearance of the chromosomal abnormality without appearance of new ones Partial: At least 50% reduction of the chromosomal abnormality

Outcome measures

Outcome measures
Measure
Stage 1a and 1b Open-label Pracinostat Plus Azacitidine
n=64 Participants
open-label single arm pracinostat plus azacitidine. Pracinostat: 45 mg administered orally 3 days each week for 3 consecutive weeks, followed by 1 week of rest, in 28-day cycles. In later cycles (i.e., after Cycle 4), pracinostat dose reduction to 45 mg orally 3 days each week × 2 weeks (instead of 3 weeks) or dose interruption is allowed to manage toxicity such as fatigue, gastrointestinal toxicity, or myelosuppression. Azacitidine: 75 mg/m2 for 7 days of each 28-day cycle. Administration will occur by subcutaneous (SC) injection, or IV infusion if SC injections are not tolerated, on one of two schedules: * Schedule 1 - daily therapy on Days 1 through 7 * Schedule 2 - 5-2-2 schedule in which subjects receive azacitidine for 5 consecutive days (Days 1 through 5) with rest on Days 6 and 7, and resume azacitidine dosing the first two days of the next week (Days 8 and 9) of each 28-day cycle Pracinostat: 45 mg capsule Azacitidine: SC or IV injection
Rate of Cytogenetic CR
46.9 percentage of subjects with cCR
Interval 34.3 to 59.8

SECONDARY outcome

Timeframe: 36 months

For subjects who have achieved CR, PR, Marrow CR, or HI, DoR is defined as the time from the initial determination of response to the time of disease progression or death on study, whichever occurs first.

Outcome measures

Outcome measures
Measure
Stage 1a and 1b Open-label Pracinostat Plus Azacitidine
n=59 Participants
open-label single arm pracinostat plus azacitidine. Pracinostat: 45 mg administered orally 3 days each week for 3 consecutive weeks, followed by 1 week of rest, in 28-day cycles. In later cycles (i.e., after Cycle 4), pracinostat dose reduction to 45 mg orally 3 days each week × 2 weeks (instead of 3 weeks) or dose interruption is allowed to manage toxicity such as fatigue, gastrointestinal toxicity, or myelosuppression. Azacitidine: 75 mg/m2 for 7 days of each 28-day cycle. Administration will occur by subcutaneous (SC) injection, or IV infusion if SC injections are not tolerated, on one of two schedules: * Schedule 1 - daily therapy on Days 1 through 7 * Schedule 2 - 5-2-2 schedule in which subjects receive azacitidine for 5 consecutive days (Days 1 through 5) with rest on Days 6 and 7, and resume azacitidine dosing the first two days of the next week (Days 8 and 9) of each 28-day cycle Pracinostat: 45 mg capsule Azacitidine: SC or IV injection
Duration of Response (DoR)
15.67 months
Interval 9.0 to 22.11

SECONDARY outcome

Timeframe: 6 months

Percentage of subjects with leukemic transformation at landmark time point of 6 months

Outcome measures

Outcome measures
Measure
Stage 1a and 1b Open-label Pracinostat Plus Azacitidine
n=59 Participants
open-label single arm pracinostat plus azacitidine. Pracinostat: 45 mg administered orally 3 days each week for 3 consecutive weeks, followed by 1 week of rest, in 28-day cycles. In later cycles (i.e., after Cycle 4), pracinostat dose reduction to 45 mg orally 3 days each week × 2 weeks (instead of 3 weeks) or dose interruption is allowed to manage toxicity such as fatigue, gastrointestinal toxicity, or myelosuppression. Azacitidine: 75 mg/m2 for 7 days of each 28-day cycle. Administration will occur by subcutaneous (SC) injection, or IV infusion if SC injections are not tolerated, on one of two schedules: * Schedule 1 - daily therapy on Days 1 through 7 * Schedule 2 - 5-2-2 schedule in which subjects receive azacitidine for 5 consecutive days (Days 1 through 5) with rest on Days 6 and 7, and resume azacitidine dosing the first two days of the next week (Days 8 and 9) of each 28-day cycle Pracinostat: 45 mg capsule Azacitidine: SC or IV injection
Rate of Leukemic Transformation
5.4 percentage of subjects
Interval 1.8 to 15.8

SECONDARY outcome

Timeframe: 36 months

time from the first day of study drug administration (Day 1) to failure or death from any cause

Outcome measures

Outcome measures
Measure
Stage 1a and 1b Open-label Pracinostat Plus Azacitidine
n=59 Participants
open-label single arm pracinostat plus azacitidine. Pracinostat: 45 mg administered orally 3 days each week for 3 consecutive weeks, followed by 1 week of rest, in 28-day cycles. In later cycles (i.e., after Cycle 4), pracinostat dose reduction to 45 mg orally 3 days each week × 2 weeks (instead of 3 weeks) or dose interruption is allowed to manage toxicity such as fatigue, gastrointestinal toxicity, or myelosuppression. Azacitidine: 75 mg/m2 for 7 days of each 28-day cycle. Administration will occur by subcutaneous (SC) injection, or IV infusion if SC injections are not tolerated, on one of two schedules: * Schedule 1 - daily therapy on Days 1 through 7 * Schedule 2 - 5-2-2 schedule in which subjects receive azacitidine for 5 consecutive days (Days 1 through 5) with rest on Days 6 and 7, and resume azacitidine dosing the first two days of the next week (Days 8 and 9) of each 28-day cycle Pracinostat: 45 mg capsule Azacitidine: SC or IV injection
Event-free Survival (EFS)
17.05 months
Interval 11.5 to 21.95

SECONDARY outcome

Timeframe: 36 months

time from the first day of study drug administration (Day 1) to disease recurrence or progression as defined by the IWG criteria, or death on study: Disease progression for subjects with: Less than 5% blasts: ≥50% increase in blasts to \>5% blasts 5%-10% blasts: ≥50% increase to \>10% blasts 10%-20% blasts: ≥50% increase to \>20% blasts 20%-30% blasts: ≥50% increase to \>30% blasts Any of the following: At least 50% decrement from maximum remission/response in granulocytes or platelets Reduction in Hb by ≥2 g/dL Transfusion dependence

Outcome measures

Outcome measures
Measure
Stage 1a and 1b Open-label Pracinostat Plus Azacitidine
n=64 Participants
open-label single arm pracinostat plus azacitidine. Pracinostat: 45 mg administered orally 3 days each week for 3 consecutive weeks, followed by 1 week of rest, in 28-day cycles. In later cycles (i.e., after Cycle 4), pracinostat dose reduction to 45 mg orally 3 days each week × 2 weeks (instead of 3 weeks) or dose interruption is allowed to manage toxicity such as fatigue, gastrointestinal toxicity, or myelosuppression. Azacitidine: 75 mg/m2 for 7 days of each 28-day cycle. Administration will occur by subcutaneous (SC) injection, or IV infusion if SC injections are not tolerated, on one of two schedules: * Schedule 1 - daily therapy on Days 1 through 7 * Schedule 2 - 5-2-2 schedule in which subjects receive azacitidine for 5 consecutive days (Days 1 through 5) with rest on Days 6 and 7, and resume azacitidine dosing the first two days of the next week (Days 8 and 9) of each 28-day cycle Pracinostat: 45 mg capsule Azacitidine: SC or IV injection
Progression-free Survival (PFS)
16.43 months
Interval 11.33 to 22.57

SECONDARY outcome

Timeframe: form day 1 to death on study, assessed up to 36 months

time from the first day of study drug administration (Day 1) to death on study

Outcome measures

Outcome measures
Measure
Stage 1a and 1b Open-label Pracinostat Plus Azacitidine
n=64 Participants
open-label single arm pracinostat plus azacitidine. Pracinostat: 45 mg administered orally 3 days each week for 3 consecutive weeks, followed by 1 week of rest, in 28-day cycles. In later cycles (i.e., after Cycle 4), pracinostat dose reduction to 45 mg orally 3 days each week × 2 weeks (instead of 3 weeks) or dose interruption is allowed to manage toxicity such as fatigue, gastrointestinal toxicity, or myelosuppression. Azacitidine: 75 mg/m2 for 7 days of each 28-day cycle. Administration will occur by subcutaneous (SC) injection, or IV infusion if SC injections are not tolerated, on one of two schedules: * Schedule 1 - daily therapy on Days 1 through 7 * Schedule 2 - 5-2-2 schedule in which subjects receive azacitidine for 5 consecutive days (Days 1 through 5) with rest on Days 6 and 7, and resume azacitidine dosing the first two days of the next week (Days 8 and 9) of each 28-day cycle Pracinostat: 45 mg capsule Azacitidine: SC or IV injection
Overall Survival (OS)
23.56 months
Interval 16.49 to 30.26

SECONDARY outcome

Timeframe: 12 months

Percentage of subjects with leukemic transformation at landmark time point of 12 months

Outcome measures

Outcome measures
Measure
Stage 1a and 1b Open-label Pracinostat Plus Azacitidine
n=59 Participants
open-label single arm pracinostat plus azacitidine. Pracinostat: 45 mg administered orally 3 days each week for 3 consecutive weeks, followed by 1 week of rest, in 28-day cycles. In later cycles (i.e., after Cycle 4), pracinostat dose reduction to 45 mg orally 3 days each week × 2 weeks (instead of 3 weeks) or dose interruption is allowed to manage toxicity such as fatigue, gastrointestinal toxicity, or myelosuppression. Azacitidine: 75 mg/m2 for 7 days of each 28-day cycle. Administration will occur by subcutaneous (SC) injection, or IV infusion if SC injections are not tolerated, on one of two schedules: * Schedule 1 - daily therapy on Days 1 through 7 * Schedule 2 - 5-2-2 schedule in which subjects receive azacitidine for 5 consecutive days (Days 1 through 5) with rest on Days 6 and 7, and resume azacitidine dosing the first two days of the next week (Days 8 and 9) of each 28-day cycle Pracinostat: 45 mg capsule Azacitidine: SC or IV injection
Rate of Leukemic Transformation
9.5 percentage of subjects
Interval 3.3 to 25.4

SECONDARY outcome

Timeframe: 18 months

Percentage of subjects with leukemic transformation at landmark time point of 18 months

Outcome measures

Outcome measures
Measure
Stage 1a and 1b Open-label Pracinostat Plus Azacitidine
n=59 Participants
open-label single arm pracinostat plus azacitidine. Pracinostat: 45 mg administered orally 3 days each week for 3 consecutive weeks, followed by 1 week of rest, in 28-day cycles. In later cycles (i.e., after Cycle 4), pracinostat dose reduction to 45 mg orally 3 days each week × 2 weeks (instead of 3 weeks) or dose interruption is allowed to manage toxicity such as fatigue, gastrointestinal toxicity, or myelosuppression. Azacitidine: 75 mg/m2 for 7 days of each 28-day cycle. Administration will occur by subcutaneous (SC) injection, or IV infusion if SC injections are not tolerated, on one of two schedules: * Schedule 1 - daily therapy on Days 1 through 7 * Schedule 2 - 5-2-2 schedule in which subjects receive azacitidine for 5 consecutive days (Days 1 through 5) with rest on Days 6 and 7, and resume azacitidine dosing the first two days of the next week (Days 8 and 9) of each 28-day cycle Pracinostat: 45 mg capsule Azacitidine: SC or IV injection
Rate of Leukemic Transformation
13.8 percentage of subjects
Interval 5.5 to 32.4

SECONDARY outcome

Timeframe: 24 months

Percentage of subjects with leukemic transformation at landmark time point of 24 months

Outcome measures

Outcome measures
Measure
Stage 1a and 1b Open-label Pracinostat Plus Azacitidine
n=59 Participants
open-label single arm pracinostat plus azacitidine. Pracinostat: 45 mg administered orally 3 days each week for 3 consecutive weeks, followed by 1 week of rest, in 28-day cycles. In later cycles (i.e., after Cycle 4), pracinostat dose reduction to 45 mg orally 3 days each week × 2 weeks (instead of 3 weeks) or dose interruption is allowed to manage toxicity such as fatigue, gastrointestinal toxicity, or myelosuppression. Azacitidine: 75 mg/m2 for 7 days of each 28-day cycle. Administration will occur by subcutaneous (SC) injection, or IV infusion if SC injections are not tolerated, on one of two schedules: * Schedule 1 - daily therapy on Days 1 through 7 * Schedule 2 - 5-2-2 schedule in which subjects receive azacitidine for 5 consecutive days (Days 1 through 5) with rest on Days 6 and 7, and resume azacitidine dosing the first two days of the next week (Days 8 and 9) of each 28-day cycle Pracinostat: 45 mg capsule Azacitidine: SC or IV injection
Rate of Leukemic Transformation
21.6 percentage of subjects
Interval 8.8 to 47.3

Adverse Events

Stage 1a and 1b Open-label Pracinostat Plus Azacitidine

Serious events: 45 serious events
Other events: 64 other events
Deaths: 5 deaths

Serious adverse events

Serious adverse events
Measure
Stage 1a and 1b Open-label Pracinostat Plus Azacitidine
n=64 participants at risk
open-label single arm pracinostat plus azacitidine. Pracinostat: 45 mg administered orally 3 days each week for 3 consecutive weeks, followed by 1 week of rest, in 28-day cycles. In later cycles (i.e., after Cycle 4), pracinostat dose reduction to 45 mg orally 3 days each week × 2 weeks (instead of 3 weeks) or dose interruption is allowed to manage toxicity such as fatigue, gastrointestinal toxicity, or myelosuppression. Azacitidine: 75 mg/m2 for 7 days of each 28-day cycle. Administration will occur by subcutaneous (SC) injection, or IV infusion if SC injections are not tolerated, on one of two schedules: * Schedule 1 - daily therapy on Days 1 through 7 * Schedule 2 - 5-2-2 schedule in which subjects receive azacitidine for 5 consecutive days (Days 1 through 5) with rest on Days 6 and 7, and resume azacitidine dosing the first two days of the next week (Days 8 and 9) of each 28-day cycle Pracinostat: 45 mg capsule Azacitidine: SC or IV injection
Blood and lymphatic system disorders
Febrile neutropenia
26.6%
17/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Blood and lymphatic system disorders
Pancytopenia
3.1%
2/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Blood and lymphatic system disorders
Thrombocytopenia
3.1%
2/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Cardiac disorders
Acute coronary syndrome
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Cardiac disorders
Acute myocardial infarction
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Cardiac disorders
Atrial fibrillation
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Cardiac disorders
Cardiac failure
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Cardiac disorders
Cardiac failure congestive
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Cardiac disorders
Pericardial effusion
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Cardiac disorders
Pericarditis
3.1%
2/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Cardiac disorders
Sinus tachycardia
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Anal fissure
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Ascites
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Dysphagia
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Gastrointestinal haemorrhage
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Haemorrhoidal haemorrhage
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Large intestine perforation
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Nausea
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Proctitis
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Rectal ulcer
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Stomatitis
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Upper gastrointestinal haemorrhage
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Vomiting
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
General disorders
Asthenia
3.1%
2/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
General disorders
Malaise
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
General disorders
Pyrexia
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Abscess limb
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Anal abscess
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Cellulitis
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Clostridial sepsis
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Clostridium difficile colitis
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Escherichia sepsis
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Fungal oesophagitis
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Influenza
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Lung infection
4.7%
3/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Perirectal abscess
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Pneumonia
9.4%
6/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Pseudomonal sepsis
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Respiratory tract infection viral
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Sepsis
7.8%
5/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Sialoadenitis
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Staphylococcal infection
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Staphylococcal sepsis
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Streptococcal sepsis
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Vascular access site infection
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Injury, poisoning and procedural complications
Fall
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Injury, poisoning and procedural complications
Laceration
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Injury, poisoning and procedural complications
Spinal compression fracture
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Investigations
Electrocardiogram qt prolonged
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Investigations
Neutrophil count decreased
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Metabolism and nutrition disorders
Dehydration
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Metabolism and nutrition disorders
Hypercalcaemia
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Metabolism and nutrition disorders
Hyperinsulinaemic hypoglycaemia
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Musculoskeletal and connective tissue disorders
Arthralgia
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Nervous system disorders
Presyncope
3.1%
2/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Nervous system disorders
Syncope
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Psychiatric disorders
Mania
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Psychiatric disorders
Mental disorder
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Renal and urinary disorders
Acute kidney injury
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Renal and urinary disorders
Haematuria
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Renal and urinary disorders
Renal failure
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Respiratory, thoracic and mediastinal disorders
Dyspnoea
3.1%
2/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Respiratory, thoracic and mediastinal disorders
Epistaxis
3.1%
2/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Respiratory, thoracic and mediastinal disorders
Pleural effusion
3.1%
2/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Respiratory, thoracic and mediastinal disorders
Pulmonary embolism
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Respiratory, thoracic and mediastinal disorders
Pulmonary oedema
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Respiratory, thoracic and mediastinal disorders
Respiratory distress
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Respiratory, thoracic and mediastinal disorders
Respiratory failure
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Vascular disorders
Deep vein thrombosis
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Vascular disorders
Orthostatic hypotension
1.6%
1/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Blood and lymphatic system disorders
Anaemia
7.8%
5/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.

Other adverse events

Other adverse events
Measure
Stage 1a and 1b Open-label Pracinostat Plus Azacitidine
n=64 participants at risk
open-label single arm pracinostat plus azacitidine. Pracinostat: 45 mg administered orally 3 days each week for 3 consecutive weeks, followed by 1 week of rest, in 28-day cycles. In later cycles (i.e., after Cycle 4), pracinostat dose reduction to 45 mg orally 3 days each week × 2 weeks (instead of 3 weeks) or dose interruption is allowed to manage toxicity such as fatigue, gastrointestinal toxicity, or myelosuppression. Azacitidine: 75 mg/m2 for 7 days of each 28-day cycle. Administration will occur by subcutaneous (SC) injection, or IV infusion if SC injections are not tolerated, on one of two schedules: * Schedule 1 - daily therapy on Days 1 through 7 * Schedule 2 - 5-2-2 schedule in which subjects receive azacitidine for 5 consecutive days (Days 1 through 5) with rest on Days 6 and 7, and resume azacitidine dosing the first two days of the next week (Days 8 and 9) of each 28-day cycle Pracinostat: 45 mg capsule Azacitidine: SC or IV injection
Blood and lymphatic system disorders
Anaemia
48.4%
31/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Blood and lymphatic system disorders
Febrile neutropenia
35.9%
23/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Blood and lymphatic system disorders
Leukopenia
10.9%
7/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Blood and lymphatic system disorders
Neutropenia
14.1%
9/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Blood and lymphatic system disorders
Pancytopenia
7.8%
5/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Blood and lymphatic system disorders
Thrombocytopenia
28.1%
18/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Cardiac disorders
Tachycardia
10.9%
7/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Ear and labyrinth disorders
Ear pain
6.2%
4/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Eye disorders
Dry eye
6.2%
4/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Abdominal pain
10.9%
7/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Constipation
51.6%
33/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Diarrhoea
32.8%
21/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Dry mouth
10.9%
7/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Dyspepsia
9.4%
6/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Dysphagia
7.8%
5/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Nausea
53.1%
34/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Oral pain
7.8%
5/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Proctalgia
6.2%
4/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Tongue discolouration
21.9%
14/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Gastrointestinal disorders
Vomiting
25.0%
16/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
General disorders
Asthenia
9.4%
6/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
General disorders
Chest pain
7.8%
5/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
General disorders
Chills
14.1%
9/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
General disorders
Fatigue
45.3%
29/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
General disorders
Injection site reaction
10.9%
7/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
General disorders
Oedema peripheral
35.9%
23/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
General disorders
Pyrexia
18.8%
12/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Lung infection
6.2%
4/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Pneumonia
12.5%
8/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Sepsis
9.4%
6/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Sinusitis
6.2%
4/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Upper respiratory tract infection
7.8%
5/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Infections and infestations
Urinary tract infection
6.2%
4/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Injury, poisoning and procedural complications
Contusion
15.6%
10/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Injury, poisoning and procedural complications
Fall
15.6%
10/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Investigations
Blood alkaline phosphatase increased
6.2%
4/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Investigations
Blood creatinine increased
12.5%
8/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Investigations
International normalised ratio increased
7.8%
5/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Investigations
Lymphocyte count decreased
7.8%
5/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Investigations
Neutrophil count decreased
53.1%
34/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Investigations
Weight decreased
10.9%
7/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Investigations
White blood cell count decreased
21.9%
14/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Metabolism and nutrition disorders
Decreased appetite
40.6%
26/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Metabolism and nutrition disorders
Dehydration
15.6%
10/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Metabolism and nutrition disorders
Hyperglycaemia
12.5%
8/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Metabolism and nutrition disorders
Hypoalbuminaemia
28.1%
18/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Metabolism and nutrition disorders
Hypocalcaemia
14.1%
9/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Metabolism and nutrition disorders
Hypoglycaemia
6.2%
4/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Metabolism and nutrition disorders
Hypokalaemia
25.0%
16/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Metabolism and nutrition disorders
Hyponatraemia
20.3%
13/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Musculoskeletal and connective tissue disorders
Arthralgia
20.3%
13/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Musculoskeletal and connective tissue disorders
Arthritis
6.2%
4/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Musculoskeletal and connective tissue disorders
Back pain
12.5%
8/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Musculoskeletal and connective tissue disorders
Muscle spasms
6.2%
4/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Musculoskeletal and connective tissue disorders
Muscular weakness
6.2%
4/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Musculoskeletal and connective tissue disorders
Musculoskeletal pain
6.2%
4/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Musculoskeletal and connective tissue disorders
Myalgia
9.4%
6/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Musculoskeletal and connective tissue disorders
Neck pain
7.8%
5/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Musculoskeletal and connective tissue disorders
Pain in extremity
14.1%
9/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Nervous system disorders
Dizziness
29.7%
19/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Nervous system disorders
Dysgeusia
10.9%
7/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Nervous system disorders
Headache
12.5%
8/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Nervous system disorders
Presyncope
6.2%
4/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Nervous system disorders
Syncope
6.2%
4/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Nervous system disorders
Tremor
10.9%
7/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Psychiatric disorders
Anxiety
15.6%
10/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Psychiatric disorders
Confusional state
6.2%
4/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Psychiatric disorders
Insomnia
18.8%
12/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Renal and urinary disorders
Acute kidney injury
14.1%
9/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Renal and urinary disorders
Pollakiuria
6.2%
4/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Renal and urinary disorders
Urinary retention
9.4%
6/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Respiratory, thoracic and mediastinal disorders
Cough
23.4%
15/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Respiratory, thoracic and mediastinal disorders
Dyspnoea
31.2%
20/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Respiratory, thoracic and mediastinal disorders
Dyspnoea exertional
7.8%
5/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Respiratory, thoracic and mediastinal disorders
Epistaxis
14.1%
9/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Respiratory, thoracic and mediastinal disorders
Hypoxia
7.8%
5/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Respiratory, thoracic and mediastinal disorders
Nasal congestion
6.2%
4/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Respiratory, thoracic and mediastinal disorders
Oropharyngeal pain
12.5%
8/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Respiratory, thoracic and mediastinal disorders
Pleural effusion
10.9%
7/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Respiratory, thoracic and mediastinal disorders
Rhinorrhoea
6.2%
4/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Skin and subcutaneous tissue disorders
Alopecia
15.6%
10/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Skin and subcutaneous tissue disorders
Papule
7.8%
5/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Skin and subcutaneous tissue disorders
Pruritus
9.4%
6/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Skin and subcutaneous tissue disorders
Rash
17.2%
11/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Skin and subcutaneous tissue disorders
Rash maculo-papular
15.6%
10/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Vascular disorders
Hypertension
12.5%
8/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.
Vascular disorders
Hypotension
23.4%
15/64 • All AEs regardless of seriousness or relationship to pracinostat or azacitidine, from the start of study drug treatment until 30 calendar days after discontinuation or completion of treatment as defined by the clinical study for that subject, have been recorded.

Additional Information

Francesco Scarci, Clinical Operations Manager

Helsinn Healthcare

Phone: +41 (0)91 985 2121

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place