Phase 2 Study: An Open-Label, Randomized, Phase 2 Dose-Finding Study of Pacritinib in Patients With Primary Myelofibrosis, Post-Polycythemia Vera Myelofibrosis, or Post- Essential Thrombocythemia Myelofibrosis Previously Treated With Ruxolitinib

Sponsor
CTI BioPharma (Industry)
Overall Status
Completed
CT.gov ID
NCT04884191
Collaborator
(none)
165
62
3
25.1
2.7
0.1

Study Details

Study Description

Brief Summary

This was an open-label, randomized, dose-finding study in patients with primary or secondary MF (Dynamic International Prognostic Scoring System [DIPSS] risk score of Intermediate-1 to High-Risk) who were previously treated with ruxolitinib. The study was designed to support a pacritinib dosage selection decision with evaluation of 3 dosages.

Study Design

Study Type:
Interventional
Actual Enrollment :
165 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
Phase 2 Study: An Open-Label, Randomized, Phase 2 Dose-Finding Study of Pacritinib in Patients With Primary Myelofibrosis, Post-Polycythemia Vera Myelofibrosis, or Post- Essential Thrombocythemia Myelofibrosis Previously Treated With Ruxolitinib
Actual Study Start Date :
Jul 31, 2017
Actual Primary Completion Date :
Sep 4, 2019
Actual Study Completion Date :
Sep 4, 2019

Arms and Interventions

Arm Intervention/Treatment
Experimental: Pacritinib 100 mg QD

Drug: Pacritinib
Pacritinib

Experimental: Pacritinib 100 mg BID

Drug: Pacritinib
Pacritinib

Experimental: Pacritinib 200 mg BID

Drug: Pacritinib
Pacritinib

Outcome Measures

Primary Outcome Measures

  1. Spleen Volume Reduction Response (≥ 35%) [From Baseline to Weeks 12 and 24]

    Number of patients achieving a ≥ 35% spleen volume reduction (SVR) as measured by magnetic resonance imaging (MRI, preferred) or computed tomography (CT) scans

  2. Percent Change in Spleen Volume [From Baseline to Weeks 12 and 24]

    Percent change from baseline

  3. Total Symptom Score Analysis [From Baseline to Weeks 12 and 24]

    Proportion of patients with ≥ 50% reduction in Total Symptom Score from baseline as assessed by the validated PRO instrument MPN-SAF TSS 2.0

  4. Patient Global Impression Assessment [From Baseline to Weeks 12 and 24]

    Number of patients with improvement in PGIA. The Patient Global Impression Assessment questionnaire was completed at the end of Week 12 and end of Week 24. The scores were summarized by treatment group at each visit.

Secondary Outcome Measures

  1. Spleen Length Reduction [From Baseline to Weeks 24]

    Rate of reduction in spleen length from baseline

  2. Frequency of RBC's or Platelet Transfusions [At week 24]

    Number of patients

  3. Eastern Cooperative Oncology Group Performance Status [At weeks 4, 12, 24, and 30 days post End-of-Treatment visit]

    0 = Fully active, able to carry on all pre-disease performance without restriction = Restricted in physically strenuous activity but ambulatory and able to carry out work of a light or sedentary nature, e.g., light house work, office work = Ambulatory and capable of all selfcare but unable to carry out any work activities; up and about more than 50% of waking hours = Capable of only limited selfcare; confined to bed or chair more than 50% of waking hours = Completely disabled; cannot carry on any selfcare; totally confined to bed or chair = Dead

  4. Number of Participants With Adverse Events [Randomization through 30 days post End-of-Treatment visit]

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years and Older
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  1. PMF, PPV-MF, or PET-MF (as defined by Tefferi and Vardiman 2008)

  2. DIPSS Intermediate-1, Intermediate -2, or High-risk (Passamonti et al 2010)

  3. Prior ruxolitinib treatment with failure to benefit or intolerance as defined by at least one of the following:

  4. Treatment for ≥3 months with inadequate efficacy response defined as <10% SVR by MRI or <30% decrease from baseline in spleen length by physical examination or regrowth to these parameters following an initial response; and/or

  5. Treatment for ≥28 days complicated by either

  1. Development of a red blood cell (RBC) transfusion requirement (at least 2 units/month for 2 months) ii. National Cancer Institute (NCI) CTCAE grade ≥3 AEs of thrombocytopenia, anemia, hematoma, and/or hemorrhage while being treated with a dosage of <20 mg BID
  1. Palpable splenomegaly ≥5 cm below the lower costal margin (LCM) in the midclavicular line as assessed by physical examination

  2. TSS of ≥10 on the MPN-SAF TSS 2.0 or patients with a single symptom score of ≥5 or 2 symptoms of ≥3, including only the symptoms of left upper quadrant pain, bone pain, itching, or night sweats

  3. Age ≥18 years old

  4. Eastern Cooperative Oncology Group (ECOG) performance status 0 to 2

  5. Peripheral blast count of <10% throughout the Screening period

  6. Absolute neutrophil count of >500/μL

  7. Adequate liver and renal function, defined by liver transaminases (aspartate aminotransferase [AST]/serum glutamic-oxaloacetic transaminase [SGOT] and alanine aminotransferase [ALT]/serum glutamic-pyruvic transaminase [SGPT]), ≤3 × the upper limit of normal (ULN) (AST/ALT ≤5 × ULN, if transaminase elevation is related to MF), direct bilirubin ≤4× ULN, and creatinine ≤2.5 mg/dL

  8. Adequate coagulation function, defined by prothrombin time (PT)/international normalized ratio (INR), partial thromboplastin time (PTT), or thrombin time (TT) of ≤1.5 × ULN

  9. Left ventricular cardiac ejection fraction of ≥45% by echocardiogram or multigated acquisition (MUGA) scan

  10. If fertile, willing to use effective birth control methods during the study

  11. Willing to undergo and able to tolerate frequent MRI or CT scan assessments during the study

  12. Able to understand and willing to complete symptom assessments using a PRO instrument

  13. Provision of informed consent

Exclusion Criteria:
  1. Life expectancy <6 months

  2. Completed allogeneic stem cell transplant (allo-SCT) or are eligible for and willing to complete allo-SCT

  3. History of splenectomy or planning to undergo splenectomy

  4. Splenic irradiation within the last 6 months

  5. Previously treated with pacritinib

  6. Patients receiving high-dose ruxolitinib (more than 10 mg BID or 20 mg QD) who cannot tolerate tapering down ruxolitinib to 10 mg BID or less prior to the first dose of pacritinib

  7. Treatment with anticoagulation or antiplatelet agents, except for aspirin dosages of ≤100 mg per day, within the last 2 weeks

  8. Treatment with a strong CYP3A4 inhibitor or a strong cytochrome P450 inducer within the last 2 weeks

  9. Treatment with medications that can prolong the QTc interval within the last 2 weeks

  10. Treatment with an experimental therapy within the last 28 days

  11. Significant recent bleeding history defined as NCI CTCAE grade ≥2 within the last 3 months, unless precipitated by an inciting event (eg, surgery, trauma, or injury)

  12. Any history of CTCAE grade ≥2 non-dysrhythmia cardiac conditions within the last 6 months. Patients with asymptomatic grade 2 non-dysrhythmia cardiac conditions may be considered for inclusion, with the approval of the medical monitor, if stable and unlikely to affect patient safety.

  13. New York Heart Association Class II, III, or IV congestive heart failure

  14. Any history of CTCAE grade ≥2 cardiac dysrhythmias within the last 6 months. Patients with non-QTc CTCAE grade 2 cardiac dysrhythmias may be considered for inclusion, with the approval of the medical monitor, if the dysrhythmias are stable, asymptomatic, and unlikely to affect patient safety.

  15. QTc prolongation >450 ms based on the mean of triplicate ECGs or other factors that increase the risk for QT interval prolongation (eg, heart failure, hypokalemia [defined as serum potassium <3.0 mEq/L that is persistent and refractory to correction], family history of long QT interval syndrome, or concomitant use of medications that may prolong QT interval)

  16. Any active gastrointestinal or metabolic condition that could interfere with absorption of oral medication

  17. Active or uncontrolled inflammatory or chronic functional bowel disorder such as Crohn's Disease, inflammatory bowel disease, chronic diarrhea, or constipation

  18. Other malignancy within the last 3 years, other than curatively treated basal cell or squamous cell skin cancer, carcinoma in situ of the cervix, organ-confined or treated nonmetastatic prostate cancer with negative prostate-specific antigen, in situ breast carcinoma after complete surgical resection, or superficial transitional cell bladder carcinoma

  19. Uncontrolled intercurrent illness, including, but not limited to, ongoing active infection or psychiatric illness or social situation that, in the judgment of the treating physician, would limit compliance with study requirements

  20. Known seropositivity for human immunodeficiency virus

  21. Known active hepatitis A, B, or C virus infection

  22. Women who are pregnant or lactating

  23. Concurrent enrollment in another interventional trial

Contacts and Locations

Locations

Site City State Country Postal Code
1 Mayo Clinic Hospital Phoenix Arizona United States 85054
2 City of Hope Duarte California United States 91010
3 USC Norris Comprehensive Cancer Center Los Angeles California United States 90033
4 UCLA Jonsson Comprehensive Cancer Center Los Angeles California United States 90095
5 Stanford Cancer Institute Stanford California United States 94305
6 Yale School of Medicine New Haven Connecticut United States 06520
7 Medical Faculty Associates, Inc. Washington District of Columbia United States 20037
8 Florida Cancer Specialists & Research Institute Fort Myers Florida United States 33901
9 Florida Cancer Specialists & Research Institute Saint Petersburg Florida United States 33705
10 Florida Cancer Specialists & Research Institute West Palm Beach Florida United States 33401
11 Northwestern University Feinberg School of Medicine Chicago Illinois United States 60611
12 The University of Chicago Medical Center Chicago Illinois United States 60637
13 University of Kansas Cancer Center Westwood Kansas United States 66205
14 Ochsner Medical Center New Orleans Louisiana United States 70121
15 Saint Agnes Hospital Baltimore Maryland United States 21229
16 Dana-Farber Cancer Institute Boston Massachusetts United States 02215
17 University of Michigan Comprehensive Cancer Center Ann Arbor Michigan United States 48109
18 Washington University School of Medicine in St. Louis Saint Louis Missouri United States 63110
19 Hackensack University Medical Center Hackensack New Jersey United States 07601
20 Weill Cornell Medical College New York New York United States 10021
21 Icahn School of Medicine at Mount Sinai New York New York United States 10029
22 Columbia University New York New York United States 10032
23 Memorial Sloan-Kettering Cancer Center New York New York United States 10065
24 University of Rochester Rochester New York United States 14642
25 Duke University Hospital Durham North Carolina United States 27710
26 Cleveland Clinic Cleveland Ohio United States 44195
27 The Ohio State University Comprehensive Cancer Center Columbus Ohio United States 43210
28 Tennessee Oncology Nashville Tennessee United States 37203
29 Vanderbilt-Ingram Cancer Center Nashville Tennessee United States 37232
30 The University of Texas MD Anderson Cancer Center Houston Texas United States 77030
31 University of Texas Health Science Center at San Antonio School of Medicine San Antonio Texas United States 78229
32 University of Utah School of Medicine Salt Lake City Utah United States 84112
33 Fred Hutchinson Cancer Research Center Seattle Washington United States 98109
34 CHU Hopital Sud Amiens France 80054
35 Centre Hospitalier Regional Universitaire de Lille - Hopital Claude Huriez Lille Cedex France 59037
36 CHU de Nimes - Hopital Universitaire Caremeau Nîmes France 30029
37 Hôpital Saint-Louis Paris France 75010
38 CHU Hopitaux de Bordeaux - Hôpital Haut-Lévêque Pessac France 33604
39 Centre Hospitalier Lyon-Sud Pierre-Bénite France 69495
40 Centre Hospitalier Universitaire de Toulouse- Hôpital Purpan Toulouse Cedex France 31059
41 SE AOK I. sx. Belgyogyaszati Klinika Budapest Hungary 1083
42 Debreceni Egyetem Klinikai Központ Debrecen Hungary 4032
43 Somogy Megyei Kaposi Mór Oktató Kórház Kaposvár Hungary 7400
44 Azienda Ospedaliero-Universitaria Careggi Firenze Italy 50134
45 Istituto Scientifico Romagnolo per lo Studio e la Cura Dei Tumori Meldola Italy 47014
46 ASST Monza - Ospedale San Gerardo Monza Italy 20900
47 Yeungnam University Medical Center Daegu Korea, Republic of 42415
48 Severance Hospital Seoul Korea, Republic of 03722
49 Samsung Medical Center Seoul Korea, Republic of 06351
50 The Catholic University of Korea, Seoul St. Mary's Hospital Seoul Korea, Republic of 06591
51 Hospital del Mar Barcelona Spain 08003
52 Hospital Clínic de Barcelona Barcelona Spain 08036
53 Hospital Universitario Ramón y Cajal Madrid Spain 28034
54 Clínica Universidad de Navarra Pamplona Spain 31008
55 Skane University Hospital Lund Lund Sweden 22185
56 Orebro University Hospital Örebro Sweden 70185
57 Beatson West of Scotland Cancer Center Glasgow United Kingdom G12 0YN
58 Barts Health NHS Trust - The Royal London Hospital London United Kingdom E1 2ES
59 Guy's and St Thomas' NHS Foundation Trust - Guy's Hospital London United Kingdom SE1 9RT
60 Imperial College Healthcare NHS Trust - Hammersmith Hospital London United Kingdom W12 0HS
61 The Christie NHS Foundation Trust Manchester United Kingdom M20 4BX
62 Oxford University Hospitals NHS Trust - Churchill Hospital Oxford United Kingdom OX3 7LE

Sponsors and Collaborators

  • CTI BioPharma

Investigators

None specified.

Study Documents (Full-Text)

More Information

Publications

None provided.
Responsible Party:
CTI BioPharma
ClinicalTrials.gov Identifier:
NCT04884191
Other Study ID Numbers:
  • PAC203
First Posted:
May 12, 2021
Last Update Posted:
Jun 1, 2022
Last Verified:
May 1, 2022
Studies a U.S. FDA-regulated Drug Product:
Yes
Studies a U.S. FDA-regulated Device Product:
No
Additional relevant MeSH terms:

Study Results

Participant Flow

Recruitment Details
Pre-assignment Detail
Arm/Group Title Pacritinib 100 mg QD Pacritinib 100 mg BID Pacritinib 200 mg BID
Arm/Group Description Pacritinib: Pacritinib Pacritinib: Pacritinib Pacritinib: Pacritinib
Period Title: Overall Study
STARTED 55 55 55
COMPLETED 52 55 54
NOT COMPLETED 3 0 1

Baseline Characteristics

Arm/Group Title Pacritinib 100 mg QD Pacritinib 100 mg BID Pacritinib 200 mg BID Total
Arm/Group Description Pacritinib: Pacritinib Pacritinib: Pacritinib Pacritinib: Pacritinib Total of all reporting groups
Overall Participants 52 55 54 161
Age (Count of Participants)
<=18 years
0
0%
0
0%
0
0%
0
0%
Between 18 and 65 years
16
30.8%
11
20%
16
29.6%
43
26.7%
>=65 years
36
69.2%
44
80%
38
70.4%
118
73.3%
Age (years) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [years]
69
(8.8)
68.9
(6.9)
68.1
(8.76)
68.7
(8.14)
Sex: Female, Male (Count of Participants)
Female
21
40.4%
26
47.3%
22
40.7%
69
42.9%
Male
31
59.6%
29
52.7%
32
59.3%
92
57.1%
Race (NIH/OMB) (Count of Participants)
American Indian or Alaska Native
0
0%
0
0%
1
1.9%
1
0.6%
Asian
2
3.8%
1
1.8%
1
1.9%
4
2.5%
Native Hawaiian or Other Pacific Islander
0
0%
0
0%
0
0%
0
0%
Black or African American
1
1.9%
0
0%
4
7.4%
5
3.1%
White
44
84.6%
47
85.5%
48
88.9%
139
86.3%
More than one race
0
0%
0
0%
0
0%
0
0%
Unknown or Not Reported
5
9.6%
7
12.7%
0
0%
12
7.5%
BMI (kg/m^2) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [kg/m^2]
25.1
(3.79)
27.2
(4.11)
26.4
(5)
26.3
(4.4)
ECOG PS (participants) [Number]
0
11
21.2%
14
25.5%
17
31.5%
42
26.1%
1
32
61.5%
29
52.7%
29
53.7%
90
55.9%
2
9
17.3%
12
21.8%
8
14.8%
29
18%

Outcome Measures

1. Primary Outcome
Title Spleen Volume Reduction Response (≥ 35%)
Description Number of patients achieving a ≥ 35% spleen volume reduction (SVR) as measured by magnetic resonance imaging (MRI, preferred) or computed tomography (CT) scans
Time Frame From Baseline to Weeks 12 and 24

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Pacritinib 100 mg QD Pacritinib 100 mg BID Pacritinib 200 mg BID
Arm/Group Description Pacritinib: Pacritinib Pacritinib: Pacritinib Pacritinib: Pacritinib
Measure Participants 52 55 54
End of Week 12
0
0%
2
3.6%
2
3.7%
End of Week 24
0
0%
1
1.8%
5
9.3%
2. Primary Outcome
Title Percent Change in Spleen Volume
Description Percent change from baseline
Time Frame From Baseline to Weeks 12 and 24

Outcome Measure Data

Analysis Population Description
The difference between the number of participants analyzed in Week 12 vs. Week 24 is the result of the number of participants that continued to complete the study. Participants that were not analyzed were withdrawn from the study for various reasons.
Arm/Group Title Pacritinib 100 mg QD Pacritinib 100 mg BID Pacritinib 200 mg BID
Arm/Group Description Pacritinib: Pacritinib Pacritinib: Pacritinib Pacritinib: Pacritinib
Measure Participants 38 43 43
Week 12
3.19
(22.613)
6.37
(31.110)
-3.60
(26.610)
Week 24
-2.43
(17.608)
0.65
(20.589)
-11.30
(26.417)
3. Primary Outcome
Title Total Symptom Score Analysis
Description Proportion of patients with ≥ 50% reduction in Total Symptom Score from baseline as assessed by the validated PRO instrument MPN-SAF TSS 2.0
Time Frame From Baseline to Weeks 12 and 24

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Pacritinib 100 mg QD Pacritinib 100 mg BID Pacritinib 200 mg BID
Arm/Group Description Pacritinib: Pacritinib Pacritinib: Pacritinib Pacritinib: Pacritinib
Measure Participants 52 55 54
End of Week 12
1
1.9%
1
1.8%
2
3.7%
End of Week 24
2
3.8%
0
0%
2
3.7%
4. Primary Outcome
Title Patient Global Impression Assessment
Description Number of patients with improvement in PGIA. The Patient Global Impression Assessment questionnaire was completed at the end of Week 12 and end of Week 24. The scores were summarized by treatment group at each visit.
Time Frame From Baseline to Weeks 12 and 24

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Pacritinib 100 mg QD Pacritinib 100 mg BID Pacritinib 200 mg BID
Arm/Group Description Pacritinib: Pacritinib Pacritinib: Pacritinib Pacritinib: Pacritinib
Measure Participants 52 55 54
Week 12 - Any Improved
17
32.7%
21
38.2%
23
42.6%
Week 12 -No Change
6
11.5%
5
9.1%
8
14.8%
Week 12 -Any Worse
8
15.4%
8
14.5%
3
5.6%
Week 24 - Any Improved
10
19.2%
13
23.6%
18
33.3%
Week 24 -No Change
6
11.5%
5
9.1%
1
1.9%
Week 24 -Any Worse
5
9.6%
3
5.5%
2
3.7%
5. Secondary Outcome
Title Spleen Length Reduction
Description Rate of reduction in spleen length from baseline
Time Frame From Baseline to Weeks 24

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Pacritinib 100 mg QD Pacritinib 100 mg BID Pacritinib 200 mg BID
Arm/Group Description Pacritinib: Pacritinib Pacritinib: Pacritinib Pacritinib: Pacritinib
Measure Participants 24 25 27
Mean (Standard Deviation) [cm]
12.42
(5.602)
11.48
(6.501)
11.63
(7.131)
6. Secondary Outcome
Title Frequency of RBC's or Platelet Transfusions
Description Number of patients
Time Frame At week 24

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Pacritinib 100 mg QD Pacritinib 100 mg BID Pacritinib 200 mg BID
Arm/Group Description Pacritinib: Pacritinib Pacritinib: Pacritinib Pacritinib: Pacritinib
Measure Participants 20 20 20
Mean (Standard Deviation) [transfusions/month]
2.27
(2.987)
1.18
(2.553)
2.25
(2.345)
7. Secondary Outcome
Title Eastern Cooperative Oncology Group Performance Status
Description 0 = Fully active, able to carry on all pre-disease performance without restriction = Restricted in physically strenuous activity but ambulatory and able to carry out work of a light or sedentary nature, e.g., light house work, office work = Ambulatory and capable of all selfcare but unable to carry out any work activities; up and about more than 50% of waking hours = Capable of only limited selfcare; confined to bed or chair more than 50% of waking hours = Completely disabled; cannot carry on any selfcare; totally confined to bed or chair = Dead
Time Frame At weeks 4, 12, 24, and 30 days post End-of-Treatment visit

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Pacritinib 100 mg QD Pacritinib 100 mg BID Pacritinib 200 mg BID
Arm/Group Description Pacritinib: Pacritinib Pacritinib: Pacritinib Pacritinib: Pacritinib
Measure Participants 52 55 54
Week 4 - 0
10
19.2%
11
20%
13
24.1%
Week 4 - 1
28
53.8%
27
49.1%
31
57.4%
Week 4 - 2
9
17.3%
16
29.1%
8
14.8%
Week 4 - 3
2
3.8%
0
0%
0
0%
Week 4 - 4
0
0%
0
0%
0
0%
Week 4 - 5
0
0%
0
0%
0
0%
Week 12 - 0
11
21.2%
9
16.4%
14
25.9%
Week 12 - 1
20
38.5%
23
41.8%
19
35.2%
Week 12 - 2
8
15.4%
10
18.2%
8
14.8%
Week 12 - 3
1
1.9%
1
1.8%
2
3.7%
Week 12 - 4
0
0%
0
0%
0
0%
Week 12 - 5
0
0%
0
0%
0
0%
Week 24 - 0
10
19.2%
6
10.9%
10
18.5%
Week 24 - 1
12
23.1%
15
27.3%
12
22.2%
Week 24 - 2
4
7.7%
5
9.1%
6
11.1%
Week 24 - 3
0
0%
0
0%
0
0%
Week 24 - 4
0
0%
0
0%
0
0%
Week 24 - 5
0
0%
0
0%
0
0%
End of Treatment - 0
11
21.2%
8
14.5%
8
14.8%
End of Treatment - 1
19
36.5%
23
41.8%
22
40.7%
End of Treatment - 2
5
9.6%
10
18.2%
11
20.4%
End of Treatment - 3
1
1.9%
1
1.8%
2
3.7%
End of Treatment - 4
0
0%
0
0%
0
0%
End of Treatment - 5
0
0%
0
0%
0
0%
8. Secondary Outcome
Title Number of Participants With Adverse Events
Description
Time Frame Randomization through 30 days post End-of-Treatment visit

Outcome Measure Data

Analysis Population Description
Patients with ≥ 1 TEAE
Arm/Group Title Pacritinib 100 mg QD Pacritinib 100 mg BID Pacritinib 200 mg BID
Arm/Group Description Pacritinib: Pacritinib Pacritinib: Pacritinib Pacritinib: Pacritinib
Measure Participants 52 55 54
Count of Participants [Participants]
49
94.2%
51
92.7%
54
100%

Adverse Events

Time Frame The end of assigned study drug + 30 days
Adverse Event Reporting Description AEs analyzed in the Safety Population
Arm/Group Title Pacritinib 100 mg QD Pacritinib 100 mg BID Pacritinib 200 mg BID
Arm/Group Description Pacritinib: Pacritinib Pacritinib: Pacritinib Pacritinib: Pacritinib
All Cause Mortality
Pacritinib 100 mg QD Pacritinib 100 mg BID Pacritinib 200 mg BID
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 6/52 (11.5%) 4/55 (7.3%) 5/54 (9.3%)
Serious Adverse Events
Pacritinib 100 mg QD Pacritinib 100 mg BID Pacritinib 200 mg BID
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 19/52 (36.5%) 20/55 (36.4%) 25/54 (46.3%)
Blood and lymphatic system disorders
Anaemia 0/52 (0%) 1/55 (1.8%) 1/54 (1.9%)
Febrile neutropenia 0/52 (0%) 0/55 (0%) 1/54 (1.9%)
Lymphadenopathy 0/52 (0%) 1/55 (1.8%) 0/54 (0%)
Splenic infarction 0/52 (0%) 1/55 (1.8%) 0/54 (0%)
Thrombocytopenia 0/52 (0%) 1/55 (1.8%) 0/54 (0%)
Thrombocytosis 0/52 (0%) 0/55 (0%) 1/54 (1.9%)
Cardiac disorders
Pericardial effusion 1/52 (1.9%) 0/55 (0%) 0/54 (0%)
Arrhythmia supraventricular 0/52 (0%) 0/55 (0%) 1/54 (1.9%)
Atrial fibrillation 0/52 (0%) 0/55 (0%) 1/54 (1.9%)
Cardiac failure 0/52 (0%) 1/55 (1.8%) 1/54 (1.9%)
Gastrointestinal disorders
Colitis 1/52 (1.9%) 1/55 (1.8%) 0/54 (0%)
Large intestinal obstruction 1/52 (1.9%) 0/55 (0%) 0/54 (0%)
Ascites 0/52 (0%) 1/55 (1.8%) 0/54 (0%)
Diarrhoea 0/52 (0%) 0/55 (0%) 1/54 (1.9%)
Gastrointestinal haemorrhage 0/52 (0%) 0/55 (0%) 2/54 (3.7%)
Intestinal obstruction 0/52 (0%) 0/55 (0%) 1/54 (1.9%)
General disorders
Pyrexia 3/52 (5.8%) 2/55 (3.6%) 3/54 (5.6%)
General physical health deterioration 2/52 (3.8%) 0/55 (0%) 0/54 (0%)
Disease progression 1/52 (1.9%) 0/55 (0%) 0/54 (0%)
Drug withdrawal syndrome 1/52 (1.9%) 0/55 (0%) 0/54 (0%)
Oedema peripheral 1/52 (1.9%) 0/55 (0%) 0/54 (0%)
Asthenia 0/52 (0%) 1/55 (1.8%) 1/54 (1.9%)
Non-cardiac chest pain 0/52 (0%) 2/55 (3.6%) 0/54 (0%)
Infections and infestations
Pneumonia 2/52 (3.8%) 2/55 (3.6%) 5/54 (9.3%)
Cellulitis 1/52 (1.9%) 1/55 (1.8%) 0/54 (0%)
Diverticulitis 1/52 (1.9%) 0/55 (0%) 0/54 (0%)
Post procedural infection 1/52 (1.9%) 0/55 (0%) 0/54 (0%)
Pyelonephritis 1/52 (1.9%) 0/55 (0%) 0/54 (0%)
Sepsis 1/52 (1.9%) 1/55 (1.8%) 2/54 (3.7%)
Tuberculosis 1/52 (1.9%) 0/55 (0%) 0/54 (0%)
Urinary tract infection 1/52 (1.9%) 2/55 (3.6%) 1/54 (1.9%)
Abscess limb 0/52 (0%) 0/55 (0%) 1/54 (1.9%)
Bronchitis 0/52 (0%) 1/55 (1.8%) 1/54 (1.9%)
Clostridium difficile colitis 0/52 (0%) 1/55 (1.8%) 2/54 (3.7%)
Gastroenteritis 0/52 (0%) 1/55 (1.8%) 2/54 (3.7%)
Herpes oesophagitis 0/52 (0%) 0/55 (0%) 1/54 (1.9%)
Influenza 0/52 (0%) 0/55 (0%) 1/54 (1.9%)
Lower respiratory tract infection 0/52 (0%) 1/55 (1.8%) 0/54 (0%)
Soft tissue infection 0/52 (0%) 1/55 (1.8%) 1/54 (1.9%)
Tooth abscess 0/52 (0%) 1/55 (1.8%) 0/54 (0%)
Injury, poisoning and procedural complications
Subdural haematoma 1/52 (1.9%) 0/55 (0%) 1/54 (1.9%)
Transfusion reaction 1/52 (1.9%) 0/55 (0%) 0/54 (0%)
Delayed haemolytic transfusion reaction 0/52 (0%) 0/55 (0%) 1/54 (1.9%)
Incorrect drug administration duration 0/52 (0%) 1/55 (1.8%) 0/54 (0%)
Subdural haemorrhage 0/52 (0%) 1/55 (1.8%) 0/54 (0%)
Investigations
Blood bilirubin increased 1/52 (1.9%) 0/55 (0%) 0/54 (0%)
Ejection fraction decreased 0/52 (0%) 1/55 (1.8%) 0/54 (0%)
Troponin increased 0/52 (0%) 0/55 (0%) 1/54 (1.9%)
Metabolism and nutrition disorders
Hyperuricaemia 1/52 (1.9%) 0/55 (0%) 0/54 (0%)
Dehydration 0/52 (0%) 3/55 (5.5%) 2/54 (3.7%)
Fluid overload 0/52 (0%) 0/55 (0%) 1/54 (1.9%)
Hypokalaemia 0/52 (0%) 0/55 (0%) 1/54 (1.9%)
Musculoskeletal and connective tissue disorders
Bone pain 1/52 (1.9%) 0/55 (0%) 1/54 (1.9%)
Muscle haemorrhage 1/52 (1.9%) 0/55 (0%) 0/54 (0%)
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Malignant melanoma in situ 0/52 (0%) 1/55 (1.8%) 0/54 (0%)
Malignant pleural effusion 0/52 (0%) 1/55 (1.8%) 0/54 (0%)
Myeloproliferative disorder 0/52 (0%) 1/55 (1.8%) 0/54 (0%)
Pituitary tumour benign 0/52 (0%) 0/55 (0%) 1/54 (1.9%)
Prostate cancer 0/52 (0%) 1/55 (1.8%) 0/54 (0%)
Nervous system disorders
Optic neuritis 1/52 (1.9%) 0/55 (0%) 0/54 (0%)
Syncope 1/52 (1.9%) 0/55 (0%) 0/54 (0%)
Headache 0/52 (0%) 0/55 (0%) 1/54 (1.9%)
Renal and urinary disorders
Haematuria 1/52 (1.9%) 0/55 (0%) 0/54 (0%)
Renal failure acute 1/52 (1.9%) 0/55 (0%) 2/54 (3.7%)
Calculus ureteric 0/52 (0%) 0/55 (0%) 1/54 (1.9%)
Hydronephrosis 0/52 (0%) 0/55 (0%) 1/54 (1.9%)
Renal impairment 0/52 (0%) 0/55 (0%) 1/54 (1.9%)
Renal mass 0/52 (0%) 1/55 (1.8%) 0/54 (0%)
Respiratory, thoracic and mediastinal disorders
Epistaxis 2/52 (3.8%) 0/55 (0%) 0/54 (0%)
Dyspnoea 1/52 (1.9%) 0/55 (0%) 0/54 (0%)
Hypoxia 0/52 (0%) 1/55 (1.8%) 1/54 (1.9%)
Respiratory distress 0/52 (0%) 0/55 (0%) 0/54 (0%)
Respiratory failure 0/52 (0%) 0/55 (0%) 1/54 (1.9%)
Skin and subcutaneous tissue disorders
Lung infiltration 1/52 (1.9%) 0/55 (0%) 0/54 (0%)
Vascular disorders
Haematoma 1/52 (1.9%) 0/55 (0%) 1/54 (1.9%)
Vascular compression 1/52 (1.9%) 0/55 (0%) 0/54 (0%)
Hypotension 0/52 (0%) 1/55 (1.8%) 0/54 (0%)
Other (Not Including Serious) Adverse Events
Pacritinib 100 mg QD Pacritinib 100 mg BID Pacritinib 200 mg BID
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 24/52 (46.2%) 34/55 (61.8%) 36/54 (66.7%)
Blood and lymphatic system disorders
Thrombocytopenia 3/52 (5.8%) 5/55 (9.1%) 9/54 (16.7%)
Anaemia 1/52 (1.9%) 3/55 (5.5%) 6/54 (11.1%)
Gastrointestinal disorders
Diarrhoea 6/52 (11.5%) 8/55 (14.5%) 14/54 (25.9%)
Nausea 7/52 (13.5%) 7/55 (12.7%) 3/54 (5.6%)
General disorders
Fatigue 1/52 (1.9%) 7/55 (12.7%) 5/54 (9.3%)
Pyrexia 1/52 (1.9%) 3/55 (5.5%) 1/54 (1.9%)
Infections and infestations
Bronchitis 3/52 (5.8%) 1/55 (1.8%) 1/54 (1.9%)
Investigations
Ejection fraction decreased 1/52 (1.9%) 3/55 (5.5%) 2/54 (3.7%)
Metabolism and nutrition disorders
Decreased appetite 3/52 (5.8%) 2/55 (3.6%) 3/54 (5.6%)
Respiratory, thoracic and mediastinal disorders
Epistaxis 2/52 (3.8%) 1/55 (1.8%) 3/54 (5.6%)
Dyspnoea 0/52 (0%) 3/55 (5.5%) 1/54 (1.9%)
Skin and subcutaneous tissue disorders
Pruritus 1/52 (1.9%) 3/55 (5.5%) 0/54 (0%)

Limitations/Caveats

[Not Specified]

More Information

Certain Agreements

Principal Investigators are NOT employed by the organization sponsoring the study.

There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.

Results Point of Contact

Name/Title John Volpone SVP, Strategic Operations
Organization CTI BioPharma, Inc.
Phone +1 (206) 272-4652
Email jvolpone@ctibiopharma.com
Responsible Party:
CTI BioPharma
ClinicalTrials.gov Identifier:
NCT04884191
Other Study ID Numbers:
  • PAC203
First Posted:
May 12, 2021
Last Update Posted:
Jun 1, 2022
Last Verified:
May 1, 2022