Trial Outcomes & Findings for Prospective Study of Patients With Thrombocytopenia Following HSCT (NCT NCT02487563)

NCT ID: NCT02487563

Last Updated: 2020-05-06

Results Overview

Platelet response refers to a sustained increase (stable or increasing level) of at least 30×10E9/L independent of transfusion for 3 days.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

97 participants

Primary outcome timeframe

Up to 4 weeks after the treatment

Results posted on

2020-05-06

Participant Flow

Two participants from different institutions submitted the applications at the same time when there was only one quota left. Both of them met the inclusion criteria and were enrolled.

Participant milestones

Participant milestones
Measure
Experimental Group 1
Decitabine in combination with rhTPO. Decitabine: Decitabine rhTPO: rhTPO
Experimental Group 2
Decitabine Decitabine: Decitabine
Control Group
Conventional treatment except decitabine. Conventional Treatment: immunoglobulin, glucocorticoid etc
Overall Study
STARTED
32
33
32
Overall Study
COMPLETED
30
30
31
Overall Study
NOT COMPLETED
2
3
1

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Race and Ethnicity were not collected from any participant.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Experimental Group 1
n=30 Participants
Decitabine 15 mg/m2 daily intravenously for consecutive 3 days (day 1 to day 3), combined with rhTPO 15000 U daily subcutaneously beginning on day 4 and continuing until the response was achieved or the time of initial evaluation.
Experimental Group 2
n=30 Participants
Decitabine 15 mg/m2 daily intravenously for consecutive 3 days (day 1 to day 3) alone.
Control Group
n=31 Participants
Conventional therapies with recommended options including rhTPO, eltrombopag, immunoglobulin, rituximab, interleukin-11 and glucocorticoids, alone or in combination.
Total
n=91 Participants
Total of all reporting groups
Age, Continuous
30 years
n=30 Participants
36 years
n=30 Participants
36 years
n=31 Participants
31 years
n=91 Participants
Sex: Female, Male
Female
5 Participants
n=30 Participants
12 Participants
n=30 Participants
15 Participants
n=31 Participants
32 Participants
n=91 Participants
Sex: Female, Male
Male
25 Participants
n=30 Participants
18 Participants
n=30 Participants
16 Participants
n=31 Participants
59 Participants
n=91 Participants
Race and Ethnicity Not Collected
0 Participants
Race and Ethnicity were not collected from any participant.
Region of Enrollment
China
30 Participants
n=30 Participants
30 Participants
n=30 Participants
31 Participants
n=31 Participants
91 Participants
n=91 Participants
Diagnosis
Acute lymphocytic leukemia
8 Participants
n=30 Participants
10 Participants
n=30 Participants
11 Participants
n=31 Participants
29 Participants
n=91 Participants
Diagnosis
Acute myeloid leukemia
15 Participants
n=30 Participants
14 Participants
n=30 Participants
12 Participants
n=31 Participants
41 Participants
n=91 Participants
Diagnosis
Chronic myeloid leukemia
0 Participants
n=30 Participants
2 Participants
n=30 Participants
1 Participants
n=31 Participants
3 Participants
n=91 Participants
Diagnosis
Myelodyplastic syndrome
5 Participants
n=30 Participants
4 Participants
n=30 Participants
4 Participants
n=31 Participants
13 Participants
n=91 Participants
Diagnosis
Non-Hodgkin lymphoma
2 Participants
n=30 Participants
0 Participants
n=30 Participants
3 Participants
n=31 Participants
5 Participants
n=91 Participants
Transplant Donor
Haploidentical donor
23 Participants
n=30 Participants
20 Participants
n=30 Participants
21 Participants
n=31 Participants
64 Participants
n=91 Participants
Transplant Donor
Matched related donor
5 Participants
n=30 Participants
8 Participants
n=30 Participants
6 Participants
n=31 Participants
19 Participants
n=91 Participants
Transplant Donor
Matched unrelated donor
2 Participants
n=30 Participants
2 Participants
n=30 Participants
4 Participants
n=31 Participants
8 Participants
n=91 Participants
ABO compatitibilty
ABO matched
15 Participants
n=30 Participants
13 Participants
n=30 Participants
18 Participants
n=31 Participants
46 Participants
n=91 Participants
ABO compatitibilty
ABO mismatched
15 Participants
n=30 Participants
17 Participants
n=30 Participants
13 Participants
n=31 Participants
45 Participants
n=91 Participants
Conditioning
Busulfan / cyclophosphamide
26 Participants
n=30 Participants
27 Participants
n=30 Participants
29 Participants
n=31 Participants
82 Participants
n=91 Participants
Conditioning
Others
4 Participants
n=30 Participants
3 Participants
n=30 Participants
2 Participants
n=31 Participants
9 Participants
n=91 Participants
Mononuclear cell infused
9.78 10E8/kg
n=30 Participants
10.50 10E8/kg
n=30 Participants
9.40 10E8/kg
n=31 Participants
10.04 10E8/kg
n=91 Participants
Neutrophils recovery
12 days
n=30 Participants
12 days
n=30 Participants
13 days
n=31 Participants
12 days
n=91 Participants
Enrollment time
103 days
n=30 Participants
105 days
n=30 Participants
79 days
n=31 Participants
99 days
n=91 Participants
Platelet counts at enrollment
14 10E9 platelets/L
n=30 Participants
12 10E9 platelets/L
n=30 Participants
17 10E9 platelets/L
n=31 Participants
15 10E9 platelets/L
n=91 Participants
Megakaryocyte counts at enrollment
2.9 cells/cm^2
n=30 Participants
3.2 cells/cm^2
n=30 Participants
3.1 cells/cm^2
n=31 Participants
3.0 cells/cm^2
n=91 Participants

PRIMARY outcome

Timeframe: Up to 4 weeks after the treatment

Platelet response refers to a sustained increase (stable or increasing level) of at least 30×10E9/L independent of transfusion for 3 days.

Outcome measures

Outcome measures
Measure
Experimental Group 1
n=30 Participants
Decitabine in combination with rhTPO. Decitabine: Decitabine rhTPO: rhTPO
Experimental Group 2
n=30 Participants
Decitabine Decitabine: Decitabine
Control Group
n=31 Participants
Conventional treatment except decitabine. Conventional Treatment: immunoglobulin, glucocorticoid etc
Number of Participants With Platelet Count Recovery
20 Participants
22 Participants
6 Participants

SECONDARY outcome

Timeframe: Up to 4 weeks after the treatment

The total number of megakaryocytes as well as the platelet-shedding megakaryocytes of bone marrow smears (per cm2) was counted and cross-checked by blinded observers.

Outcome measures

Outcome measures
Measure
Experimental Group 1
n=30 Participants
Decitabine in combination with rhTPO. Decitabine: Decitabine rhTPO: rhTPO
Experimental Group 2
n=30 Participants
Decitabine Decitabine: Decitabine
Control Group
n=31 Participants
Conventional treatment except decitabine. Conventional Treatment: immunoglobulin, glucocorticoid etc
Megakaryocyte Count
6.7 cells/cm^2
Interval 1.2 to 10.0
7.5 cells/cm^2
Interval 3.1 to 14.1
3.3 cells/cm^2
Interval 1.8 to 6.0

Adverse Events

Experimental Group 1

Serious events: 4 serious events
Other events: 8 other events
Deaths: 1 deaths

Experimental Group 2

Serious events: 1 serious events
Other events: 5 other events
Deaths: 0 deaths

Control Group

Serious events: 3 serious events
Other events: 7 other events
Deaths: 1 deaths

Serious adverse events

Serious adverse events
Measure
Experimental Group 1
n=30 participants at risk
Decitabine 15 mg/m2 daily intravenously for consecutive 3 days (day 1 to day 3), combined with rhTPO 15000 U daily subcutaneously beginning on day 4 and continuing until the response was achieved or the time of initial evaluation.
Experimental Group 2
n=30 participants at risk
Decitabine 15 mg/m2 daily intravenously for consecutive 3 days (day 1 to day 3) alone.
Control Group
n=31 participants at risk
Conventional therapies with recommended options including rhTPO, eltrombopag, immunoglobulin, rituximab, interleukin-11 and glucocorticoids, alone or in combination.
Blood and lymphatic system disorders
Bleeding events
3.3%
1/30 • Study period (4 weeks)
3.3%
1/30 • Study period (4 weeks)
0.00%
0/31 • Study period (4 weeks)
Infections and infestations
Infections
6.7%
2/30 • Study period (4 weeks)
0.00%
0/30 • Study period (4 weeks)
6.5%
2/31 • Study period (4 weeks)
Cardiac disorders
Shock
3.3%
1/30 • Study period (4 weeks)
0.00%
0/30 • Study period (4 weeks)
3.2%
1/31 • Study period (4 weeks)

Other adverse events

Other adverse events
Measure
Experimental Group 1
n=30 participants at risk
Decitabine 15 mg/m2 daily intravenously for consecutive 3 days (day 1 to day 3), combined with rhTPO 15000 U daily subcutaneously beginning on day 4 and continuing until the response was achieved or the time of initial evaluation.
Experimental Group 2
n=30 participants at risk
Decitabine 15 mg/m2 daily intravenously for consecutive 3 days (day 1 to day 3) alone.
Control Group
n=31 participants at risk
Conventional therapies with recommended options including rhTPO, eltrombopag, immunoglobulin, rituximab, interleukin-11 and glucocorticoids, alone or in combination.
Hepatobiliary disorders
Hypohepatia
6.7%
2/30 • Study period (4 weeks)
3.3%
1/30 • Study period (4 weeks)
3.2%
1/31 • Study period (4 weeks)
Cardiac disorders
Chest distress
3.3%
1/30 • Study period (4 weeks)
3.3%
1/30 • Study period (4 weeks)
0.00%
0/31 • Study period (4 weeks)
Gastrointestinal disorders
Anorexia
3.3%
1/30 • Study period (4 weeks)
0.00%
0/30 • Study period (4 weeks)
0.00%
0/31 • Study period (4 weeks)
General disorders
Fatigue
6.7%
2/30 • Study period (4 weeks)
3.3%
1/30 • Study period (4 weeks)
3.2%
1/31 • Study period (4 weeks)
Nervous system disorders
Headache
3.3%
1/30 • Study period (4 weeks)
0.00%
0/30 • Study period (4 weeks)
0.00%
0/31 • Study period (4 weeks)
Gastrointestinal disorders
Nausea
3.3%
1/30 • Study period (4 weeks)
0.00%
0/30 • Study period (4 weeks)
0.00%
0/31 • Study period (4 weeks)
Infections and infestations
Fever
3.3%
1/30 • Study period (4 weeks)
6.7%
2/30 • Study period (4 weeks)
3.2%
1/31 • Study period (4 weeks)
Eye disorders
Blurred vision
0.00%
0/30 • Study period (4 weeks)
3.3%
1/30 • Study period (4 weeks)
0.00%
0/31 • Study period (4 weeks)
Metabolism and nutrition disorders
Hypeluricemia
0.00%
0/30 • Study period (4 weeks)
3.3%
1/30 • Study period (4 weeks)
0.00%
0/31 • Study period (4 weeks)
Skin and subcutaneous tissue disorders
Erythra
0.00%
0/30 • Study period (4 weeks)
3.3%
1/30 • Study period (4 weeks)
3.2%
1/31 • Study period (4 weeks)
Blood and lymphatic system disorders
Bleeding events
10.0%
3/30 • Study period (4 weeks)
6.7%
2/30 • Study period (4 weeks)
9.7%
3/31 • Study period (4 weeks)
Infections and infestations
Infection
0.00%
0/30 • Study period (4 weeks)
0.00%
0/30 • Study period (4 weeks)
3.2%
1/31 • Study period (4 weeks)

Additional Information

Yaqiong Tang

Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University

Phone: +86 18896588075

Results disclosure agreements

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