Trial Outcomes & Findings for A Study of Patients Who Received Inotuzumab Ozogamicin for B-cell ALL (Acute Lymphoblastic Leukemia) That Occurred Again After the Last Treatment (NCT NCT05597085)

NCT ID: NCT05597085

Last Updated: 2025-02-04

Results Overview

CR was defined as 5 percent (%) bone marrow blasts, no evidence of disease in the bone marrow, and recovery of peripheral blood count (platelet count of \[more than\] \>100\*10\^9 cells/liter \[L\] and absolute neutrophil count of \>1\*10\^9 cells/L). CRi was defined as 5% bone marrow blasts and no evidence of disease in the bone marrow, but with incomplete recovery of peripheral blood count.

Recruitment status

COMPLETED

Target enrollment

32 participants

Primary outcome timeframe

From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Results posted on

2025-02-04

Participant Flow

Data of eligible Indian participants with Relapsed/Refractory/ B Cell Acute lymphoblastic leukemia (R/R B cell ALL), who aged greater than or equal to 18 years at the time of initiating treatment with Inotuzumab ozogamicin (InO) \[index date\], was collected retrospectively from hospital medical records. For eligibility Index date could have been between Feb 2017 to Feb 2022. Available data was retrieved from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months) in the current observational study.

Participant milestones

Participant milestones
Measure
Inotuzumab Ozogamicin (InO)
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Overall Study
STARTED
32
Overall Study
COMPLETED
32
Overall Study
NOT COMPLETED
0

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
Inotuzumab Ozogamicin (InO)
n=32 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Age, Customized
18-50 years
23 Participants
n=32 Participants
Age, Customized
Above (>) 50 years
9 Participants
n=32 Participants
Sex: Female, Male
Female
11 Participants
n=32 Participants
Sex: Female, Male
Male
21 Participants
n=32 Participants

PRIMARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study.

CR was defined as 5 percent (%) bone marrow blasts, no evidence of disease in the bone marrow, and recovery of peripheral blood count (platelet count of \[more than\] \>100\*10\^9 cells/liter \[L\] and absolute neutrophil count of \>1\*10\^9 cells/L). CRi was defined as 5% bone marrow blasts and no evidence of disease in the bone marrow, but with incomplete recovery of peripheral blood count.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=32 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Number of Participants Who Achieved Complete Remission (CR) or Complete Remission With Incomplete Hematological Recovery (CRi) Following Treatment With InO
19 Participants

PRIMARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study. All participants reported under "Number of Participants Analyzed" contributed data to the table; however, may not have evaluable data for every row. Here, "Number Analyzed" signifies number of participants evaluable for specified rows.

CR was defined as 5 percent (%) bone marrow blasts, no evidence of disease in the bone marrow, and recovery of peripheral blood count (platelet count of \[more than\] \>100\*10\^9 cells/liter \[L\] and absolute neutrophil count of \>1\*10\^9 cells/L). CRi was defined as 5% bone marrow blasts and no evidence of disease in the bone marrow, but with incomplete recovery of peripheral blood count. Salvage therapy is use of drugs after standard conventional chemotherapeutic regimens have failed to achieve remission.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=32 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Number of Participants Who Achieved Complete Remission (CR) or Complete Remission With Incomplete Hematological Recovery (CRi) Following Treatment With InO, Classified Per Number of Lines of Salvage Therapies Prior to InO Initiation
Participants achieved CR/CRi during first salvage therapy
6 Participants
Number of Participants Who Achieved Complete Remission (CR) or Complete Remission With Incomplete Hematological Recovery (CRi) Following Treatment With InO, Classified Per Number of Lines of Salvage Therapies Prior to InO Initiation
Participants achieved CR/CRi during second salvage therapy
11 Participants
Number of Participants Who Achieved Complete Remission (CR) or Complete Remission With Incomplete Hematological Recovery (CRi) Following Treatment With InO, Classified Per Number of Lines of Salvage Therapies Prior to InO Initiation
Participants achieved CR/CRi during third salvage therapy
2 Participants

PRIMARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study. All participants reported under "Number of Participants Analyzed" contributed data to the table; however, may not have evaluable data for every row. Here, "Number Analyzed" signifies number of participants evaluable for specified rows.

CR was defined as 5% bone marrow blasts, no evidence of disease in the bone marrow, and recovery of peripheral blood count (platelet count of \>100\*10\^9 cells/L and absolute neutrophil count of \>1\*10\^9 cells/L). CRi was defined as 5% bone marrow blasts and no evidence of disease in the bone marrow, but with incomplete recovery of peripheral blood count. Disease burden was defined using percentage of bone marrow blasts (BMB). In this outcome measure low disease burden indicated BMB \<50% and high disease burden indicated BMB \>=50%.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=32 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Number of Participants Who Achieved CR or CRi Following Treatment With InO, Classified Per High Burden and Low Burden Disease
Participants achieved CR/CRi: BMB <50%
10 Participants
Number of Participants Who Achieved CR or CRi Following Treatment With InO, Classified Per High Burden and Low Burden Disease
Participants achieved CR/CRi: BMB >=50%
9 Participants

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study. All participants reported under "Number of Participants Analyzed" contributed data to the table; however, may not have evaluable data for every row. Here, "Number of Participants Analyzed" signifies participants evaluable for this outcome measure and "Number Analyzed" signifies number of participants evaluable for specified rows.

Negative MRD was defined as documented in medical records or (if unavailable in the records) as leukemic cells comprising \<1\*10\^-4 (\<0.01%) of bone marrow nucleated cells. MRD was assessed by multicolor flow cytometry. CR was defined as 5% bone marrow blasts, no evidence of disease in the bone marrow, and recovery of peripheral blood count (platelet count of \>100\*10\^9/L and absolute neutrophil count of \>1\*10\^9/L). CRi was defined as 5% bone marrow blasts and no evidence of disease in the bone marrow, but with incomplete recovery of peripheral blood count.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=19 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Number of Participants Who Achieved Minimal Residual Disease (MRD) Negativity Following Initiation of Ino Among Those Who Had CR/CRi
Participants with CR who achieved MRD
17 Participants
Number of Participants Who Achieved Minimal Residual Disease (MRD) Negativity Following Initiation of Ino Among Those Who Had CR/CRi
Participants with CRi who achieved MRD
1 Participants

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study. All participants reported under "Number of Participants Analyzed" contributed data to the table; however, may not have evaluable data for every row. Here, "Number of Participants Analyzed" signifies participants evaluable for this outcome measure and "Number Analyzed" signifies number of participants evaluable for specified rows.

Negative MRD was defined as documented in medical records or (if unavailable in the records) as leukemic cells comprising \<1\*10\^-4 (\<0.01%) of bone marrow nucleated cells. MRD was assessed by multicolour flow cytometry. CR was defined as 5% bone marrow blasts, no evidence of disease in the bone marrow, and recovery of peripheral blood count (platelet count of \>100\*10\^9/L and absolute neutrophil count of \>1\*10\^9/L). CRi was defined as 5% bone marrow blasts and no evidence of disease in the bone marrow, but with incomplete recovery of peripheral blood count. Salvage therapy is use of drugs after standard conventional chemotherapeutic regimens have failed to achieve remission. Participants with either CR or CRi who achieved MRD negativity classified per number of lines of salvage therapies are reported in this outcome measure.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=19 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Number of Participants Who Achieved MRD Negativity Classified Per Number of Lines of Salvage Therapies Following Initiation of InO Among Those Who Had CR/CRi
First Salvage Therapy
5 Participants
Number of Participants Who Achieved MRD Negativity Classified Per Number of Lines of Salvage Therapies Following Initiation of InO Among Those Who Had CR/CRi
Second Salvage Therapy
11 Participants
Number of Participants Who Achieved MRD Negativity Classified Per Number of Lines of Salvage Therapies Following Initiation of InO Among Those Who Had CR/CRi
Third Salvage Therapy
2 Participants

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study. All participants reported under "Number of Participants Analyzed" contributed data to the table; however, may not have evaluable data for every row. Here, "Number of Participants Analyzed" signifies participants evaluable for this outcome measure and "Number Analyzed" signifies number of participants evaluable for specified rows.

Negative MRD was defined as documented in medical records or (if unavailable in the records) as leukemic cells comprising \<1\*10\^-4 (\<0.01%) of bone marrow nucleated cells. MRD was assessed by multicolour flow cytometry. CR was defined as 5% bone marrow blasts, no evidence of disease in the bone marrow, and recovery of peripheral blood count (platelet count of \>100\*10\^9/L and absolute neutrophil count of \>1\*10\^9/L). CRi was defined as 5% bone marrow blasts and no evidence of disease in the bone marrow, but with incomplete recovery of peripheral blood count. Disease burden was defined using percentage of BMB. In this outcome measure low disease burden indicated BMB \<50% and high disease burden indicated BMB \>=50%. Participants with either CR or CRi who achieved MRD negativity classified per high burden and low burden disease are reported in this outcome measure.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=19 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Number of Participants Who Achieved MRD Negativity Classified Per High Burden and Low Burden Disease Following Initiation of InO Among Those Who Had CR/CRi
BMB <50%
10 Participants
Number of Participants Who Achieved MRD Negativity Classified Per High Burden and Low Burden Disease Following Initiation of InO Among Those Who Had CR/CRi
BMB >=50%
8 Participants

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study. Here, "Number of Participants Analyzed" signifies number of participants evaluable for this outcome measure.

Negative MRD was defined as documented in medical records or (if unavailable in the records) as leukemic cells comprising \<1\*10\^-4 (\<0.01%) of bone marrow nucleated cells. MRD was assessed by multicolour flow cytometry. CR was defined as 5% bone marrow blasts, no evidence of disease in the bone marrow, and recovery of peripheral blood count (platelet count of \>100\*10\^9/L and absolute neutrophil count of \>1\*10\^9/L). CRi was defined as 5% bone marrow blasts and no evidence of disease in the bone marrow, but with incomplete recovery of peripheral blood count.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=2 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Number of Participants Achieving MRD Negativity Following Initiation of InO Among Those Who Had CR/CRi in Elderly Participants (>65 Years)
2 Participants

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study.

The median number of cycles of InO a participant received during treatment were included. Standard dose of InO: 1.8 mg/m\^2 per 21 days cycle.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=32 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Median Number of Cycles of InO Treatment
2 Cycles of InO Treatment
Interval 1.0 to 6.0

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study. 'Number of Participants Analyzed' signifies number of participants evaluable for this outcome measure.

CR was defined as 5% bone marrow blasts, no evidence of disease in the bone marrow, and recovery of peripheral blood count (platelet count of \>100\*10\^9/L and absolute neutrophil count of \>1\*10\^9/L). CRi was defined as 5% bone marrow blasts and no evidence of disease in the bone marrow, but with incomplete recovery of peripheral blood count.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=19 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Median Number of Cycles of InO Needed to Attain CR/CRi
2 Cycles of InO treatment
Interval 1.0 to 6.0

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study. All participants reported under "Number of Participants Analyzed" contributed data to the table; however, may not have evaluable data for every row. Here, "Number of Participants Analyzed" signifies participants evaluable for this outcome measure and "Number Analyzed" signifies number of participants evaluable for specified rows.

CR was defined as 5% bone marrow blasts, no evidence of disease in the bone marrow, and recovery of peripheral blood count (platelet count of \>100\*10\^9/L and absolute neutrophil count of \>1\*10\^9/L). CRi was defined as 5% bone marrow blasts and no evidence of disease in the bone marrow, but with incomplete recovery of peripheral blood count. Salvage therapy is use of drugs after standard conventional chemotherapeutic regimens have failed to achieve remission.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=19 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Mean Number of Cycles of InO Needed to Attain CR or CRi Classified Per Number of Lines of Salvage Therapies
First Salvage Therapy
2.33 Cycles of InO treatment
Standard Deviation 1.21
Mean Number of Cycles of InO Needed to Attain CR or CRi Classified Per Number of Lines of Salvage Therapies
Second Salvage Therapy
2.00 Cycles of InO treatment
Standard Deviation 1.48
Mean Number of Cycles of InO Needed to Attain CR or CRi Classified Per Number of Lines of Salvage Therapies
Third Salvage Therapy
3.50 Cycles of InO treatment
Standard Deviation 3.54

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study. "Number of Participants Analyzed" signifies number of participants evaluable for this outcome measure.

Remission was defined as either the reduction or disappearance of the signs and symptoms of leukemia for this study.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=17 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Duration of Remission (DOR)
6 Months
Interval 0.5 to 61.0

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study.

Standard dose of InO was 1.8 milligrams (mg) per meter square (m\^2) per cycle. Under dose of InO was less than 1.8 mg/m\^2 per cycle. Overdose of InO was more than 1.8 mg/m\^2 per cycle.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=32 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Number of Participants Categorized as Per InO Doses
Under Dose
17 Participants
Number of Participants Categorized as Per InO Doses
Standard Dose
12 Participants
Number of Participants Categorized as Per InO Doses
Overdose
3 Participants

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study.

Number of participants for whom there was deviation in InO dose from the standard dose (1.8 mg/ m\^2 per cycle) were included.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=32 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Number of Participants With InO Dose Modifications
Below standard dose
17 Participants
Number of Participants With InO Dose Modifications
Above standard dose
3 Participants

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study.

Concomitant medication was defined as any medication other than, and in addition to, the study medication taken for any period of time during the treatment.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=32 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Number of Participants Who Received Concomitant Medications
0 Participants

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study.

HSCT is the transplantation of multipotent hematopoietic stem cells to treat some type of cancers and other diseases.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=32 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Number of Participants Who Proceeded to Hematopoietic Stem Cell Transplantation (HSCT)
11 Participants

SECONDARY outcome

Timeframe: 6 and 12 months post initiation of InO treatment; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study. All participants reported under "Number of Participants Analyzed" contributed data to the table; however, may not have evaluable data for every row. Here, "Number of Participants Analyzed" signifies participants evaluable for this outcome measure and "Number Analyzed" signifies number of participants evaluable for specified rows.

Survival rate: percentage of participants in a study or treatment group who were still alive for a certain period of time after they were diagnosed with or started treatment for a disease. Negative MRD was defined as documented in medical records or (if unavailable in the records) as leukemic cells comprising \<1\*10\^-4 (\<0.01%) of bone marrow nucleated cells. MRD was assessed by multicolour flow cytometry. CR was defined as 5% bone marrow blasts, no evidence of disease in the bone marrow, and recovery of peripheral blood count (platelet count of \>100\*10\^9 cells/L and absolute neutrophil count of \>1\*10\^9 cells/L). CRi was defined as 5% bone marrow blasts and no evidence of disease in the bone marrow, but with incomplete recovery of peripheral blood count. In this outcome measure percentage of participants who had either CR or CRi with MRD negativity and survived at the end of 6 months and 12 months post initiation of InO treatment are reported on the basis of transplantation status.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=18 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Who Achieved CR/CRi and MRD Negativity
Transplanted Participants: Survival rate at 6 Months
66.7 Percentage of participants
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Who Achieved CR/CRi and MRD Negativity
Non-transplanted Participants: Survival rate at 6 Months
88.9 Percentage of participants
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Who Achieved CR/CRi and MRD Negativity
Transplanted Participants: Survival rate at 12 Months
33.3 Percentage of participants
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Who Achieved CR/CRi and MRD Negativity
Non-transplanted Participants: Survival rate at 12 Months
44.4 Percentage of participants

SECONDARY outcome

Timeframe: 6 and 12 months post initiation of InO treatment; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study. All participants reported under "Number of Participants Analyzed" contributed data to the table; however, may not have evaluable data for every row. Here, "Number of Participants Analyzed" signifies participants evaluable for this outcome measure and "Number Analyzed" signifies number of participants evaluable for specified rows.

Survival rate was defined as the percentage of participants in a study or treatment group who were still alive for a certain period of time after they were diagnosed with or started treatment for a disease. Salvage therapy is use of drugs after standard conventional chemotherapeutic regimens have failed to achieve remission. In this outcome measure percentage of transplanted and non-transplanted participants who survived at the end of 6 months and 12 months post initiation of InO treatment are classified based on number of lines of salvage therapies.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=30 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Classified Per Number of Lines of Salvage Therapies
Transplanted participants: second salvage therapy: Survival rate at 6 months
66.7 Percentage of participants
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Classified Per Number of Lines of Salvage Therapies
Transplanted participants: third salvage therapy: Survival rate at 6 months
50 Percentage of participants
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Classified Per Number of Lines of Salvage Therapies
Transplanted participants: second salvage therapy: Survival rate at 12 months
33.3 Percentage of participants
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Classified Per Number of Lines of Salvage Therapies
Transplanted participants: third salvage therapy: Survival rate at 12 months
50 Percentage of participants
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Classified Per Number of Lines of Salvage Therapies
Non-transplanted participants: first salvage therapy: Survival rate at 6 months
56 Percentage of participants
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Classified Per Number of Lines of Salvage Therapies
Non-transplanted participants: second salvage therapy: Survival rate at 6 months
25.0 Percentage of participants
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Classified Per Number of Lines of Salvage Therapies
Non-transplanted participants: third salvage therapy: Survival rate at 6 months
50 Percentage of participants
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Classified Per Number of Lines of Salvage Therapies
Non-transplanted participants: first salvage therapy: Survival rate at 12 months
33 Percentage of participants
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Classified Per Number of Lines of Salvage Therapies
Non-transplanted participants: second salvage therapy: Survival rate at 12 months
12.5 Percentage of participants
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Classified Per Number of Lines of Salvage Therapies
Non-transplanted participants: third salvage therapy: Survival rate at 12 months
50 Percentage of participants

SECONDARY outcome

Timeframe: 6 and 12 months post initiation of InO treatment; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study. All participants reported under "Number of Participants Analyzed" contributed data to the table; however, may not have evaluable data for every row. Here, "Number of Participants Analyzed" signifies participants evaluable for this outcome measure and "Number Analyzed" signifies number of participants evaluable for specified rows.

Survival rate was defined as the percentage of participants in a study or treatment group who were still alive for a certain period of time after they were diagnosed with or started treatment for a disease. Disease burden was defined using percentage of BMB. In this outcome measure low disease burden indicated BMB \<50% and high disease burden indicated BMB \>=50%. In this outcome measure percentage of transplanted and non-transplanted participants who survived at the end of 6 months and 12 months post initiation of InO treatment are classified based on high burden and low burden disease.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=30 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Classified Per High Burden and Low Burden Disease
Transplanted: BMB <50%: Survival rate at 6 Months
71.43 Percentage of participants
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Classified Per High Burden and Low Burden Disease
Transplanted: BMB >=50%: Survival rate at 6 Months
50 Percentage of participants
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Classified Per High Burden and Low Burden Disease
Transplanted: BMB <50%: Survival rate at 12 Months
42.86 Percentage of participants
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Classified Per High Burden and Low Burden Disease
Transplanted: BMB >=50%: Survival rate at 12 Months
25 Percentage of participants
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Classified Per High Burden and Low Burden Disease
Non-transplanted: BMB <50%: Survival rate at 6 Months
57.14 Percentage of participants
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Classified Per High Burden and Low Burden Disease
Non-transplanted: BMB >=50%: Survival rate at 6 Months
33.33 Percentage of participants
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Classified Per High Burden and Low Burden Disease
Non-transplanted: BMB <50%: Survival rate at 12 Months
28.57 Percentage of participants
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Participants Classified Per High Burden and Low Burden Disease
Non-transplanted: BMB >=50%: Survival rate at 12 Months
25 Percentage of participants

SECONDARY outcome

Timeframe: 6 and 12 months post initiation of InO treatment; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study. All participants reported under "Number of Participants Analyzed" contributed data to the table; however, may not have evaluable data for every row. Here, "Number of Participants Analyzed" signifies participants evaluable for this outcome measure and "Number Analyzed" signifies number of participants evaluable for specified rows.

Survival rate was defined as the percentage of participants in a study or treatment group who were still alive for a certain period of time after they were diagnosed with or started treatment for a disease. In this outcome measure percentage of transplanted and non-transplanted participants greater than 65 years of age, who survived at the end of 6 months and 12 months post initiation of InO treatment are reported.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=2 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Elderly Participants (>65 Years)
Non-transplanted: >65 years: Survival rate at 6 Months
50.0 Percentage of participants
Survival Rate at 6 and 12 Months in Transplanted and Non-Transplanted Elderly Participants (>65 Years)
Non-transplanted: >65 years: Survival rate at 12 Months
50.0 Percentage of participants

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study. Here "Number of Participants Analyzed" signifies number of participants evaluable for this outcome measure.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=17 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Number of Participants Categorized According to Cause of Death
Progression of disease
4 Participants
Number of Participants Categorized According to Cause of Death
Relapse
6 Participants
Number of Participants Categorized According to Cause of Death
Septic Shock
2 Participants
Number of Participants Categorized According to Cause of Death
Veno-occlusive disease (VOD)-related multiorgan failure
1 Participants
Number of Participants Categorized According to Cause of Death
VOD pneumonia
1 Participants
Number of Participants Categorized According to Cause of Death
Central nervous system (CNS) relapse
1 Participants
Number of Participants Categorized According to Cause of Death
Not mentioned
2 Participants

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study. All participants reported under "Number of Participants Analyzed" contributed data to the table; however, may not have evaluable data for every row. Here, "Number of Participants Analyzed" signifies participants evaluable for this outcome measure and "Number Analyzed" signifies number of participants evaluable for specified rows.

RFS was defined as time from index date to the earliest date of the following events: death, progressive disease (including objective progression, relapse from CR/CRi, treatment discontinuation due to global deterioration of health status), or the start of new induction therapy or posttherapy HSCT without achieving CR/CRi. Index date was defined as the date of initiation of the first cycle of InO. CR was defined as 5% bone marrow blasts, no evidence of disease in the bone marrow, and recovery of peripheral blood count (platelet count of \>100\*10\^9/L and absolute neutrophil count of \>1\*10\^9/L). CRi was defined as 5% bone marrow blasts and no evidence of disease in the bone marrow, but with incomplete recovery of peripheral blood count. Median duration of relapse free survival in all participants included those participants who had achieved CR/CRi is reported in this outcome measure.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=17 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Relapse Free Survival (RFS) in All Participants and Participants With or Without Follow-up HSCT
All Participants
7 Months
Interval 5.0 to 18.2
Relapse Free Survival (RFS) in All Participants and Participants With or Without Follow-up HSCT
With Follow-up HSCT
6 Months
Interval 4.8 to 10.6
Relapse Free Survival (RFS) in All Participants and Participants With or Without Follow-up HSCT
Without Follow-up HSCT
9.5 Months
Interval 2.5 to 29.5

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study. All participants reported under "Number of Participants Analyzed" contributed data to the table; however, may not have evaluable data for every row. Here, "Number Analyzed" signifies number of participants evaluable for specified rows.

VOD occurs when the small blood vessels in the liver are blocked.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=31 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Percentage of HSCT Transplanted Participants With VOD and Percentage of HSCT Non-transplanted Participants With VOD
Transplanted Participants
45.45 Percentage of participants
Percentage of HSCT Transplanted Participants With VOD and Percentage of HSCT Non-transplanted Participants With VOD
Non-transplanted Participants
10 Percentage of participants

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study. All participants reported under "Number of Participants Analyzed' contributed data to the table; however, may not have evaluable data for every row. Here, "Number Analyzed" signifies number of participants evaluable for specified rows.

VOD occurs when the small blood vessels in the liver are blocked. Salvage therapy is use of drugs after standard conventional chemotherapeutic regimens have failed to achieve remission.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=32 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Percentage of Participants With VOD in Participants Classified Per Number of Lines of Salvage Therapies
First Salvage Therapy
20 Percentage of participants
Percentage of Participants With VOD in Participants Classified Per Number of Lines of Salvage Therapies
Second Salvage Therapy
17 Percentage of participants
Percentage of Participants With VOD in Participants Classified Per Number of Lines of Salvage Therapies
Third Salvage Therapy
50 Percentage of participants

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study. All participants reported under "Number of Participants Analyzed' contributed data to the table; however, may not have evaluable data for every row. Here, "Number Analyzed" signifies number of participants evaluable for specified rows.

VOD occurs when the small blood vessels in the liver are blocked. Disease burden was defined using percentage of BMB. In this outcome measure low disease burden indicated BMB \<50% and high disease burden indicated BMB \>=50%.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=32 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Percentage of Participants With VOD Classified Per High Burden and Low Burden Disease
BMB <50%
18.75 Percentage of participants
Percentage of Participants With VOD Classified Per High Burden and Low Burden Disease
BMB >=50%
25.00 Percentage of participants

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study. Here, "Number of Participants Analyzed" signifies participants evaluable for this outcome measure.

VOD occurs when the small blood vessels in the liver are blocked.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=2 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Percentage of Participants With VOD in Elderly Participants (>65 Years)
50.00 Percentage of participants

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study.

Treatment-related AE was any untoward medical occurrence in a participant who has received the study drug. Liver toxicity parameters included: Aspartate aminotransferase (level) \>=2.5\*upper limit of normal (ULN); alanine transaminase (level) \>=2.5\*ULN and total serum bilirubin \>=1.5\*ULN. Here, Grade 3 indicates severe events and Grade 4 indicates Life-threatening events where urgent intervention was required.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=32 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Number of Participants With Grade 3/4 Treatment Related Liver Toxicity (Hepatobiliary Disorder) Adverse Events (TEAEs) Following InO Initiation
12 Participants

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study.

Hematological toxicities included: Febrile neutropenia= absolute neutrophil count (ANC) \< 1.0\*10\^9 cells/L, fever \>=38.5 degree C); Neutropenia= absolute granulocyte count \< 1.0\*10\^9 cells/L; Thrombocytopenia= platelet count \< 150,000 platelets per microliter.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=32 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Number of Participants With Hematological Toxicities Following InO Initiation
28 Participants

SECONDARY outcome

Timeframe: From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)

Population: Analysis population included all eligible participants whose data were retrieved and observed in this study. "Number of Participants Analyzed" signifies participants evaluable for this outcome measure.

Extramedullary disease was the presence of leukemic cell aggregates in the form of solid tumor outside that of bone marrow. Lymphoblastic lymphoma, was a clonal hematopoietic stem cell disorder of B or T cell origin. CR was defined as 5% bone marrow blasts, no evidence of disease in the bone marrow, and recovery of peripheral blood count (platelet count of \>100\*10\^9/L and absolute neutrophil count of \>1\*10\^9/L). CRi was defined as 5% bone marrow blasts and no evidence of disease in the bone marrow, but with incomplete recovery of peripheral blood count.

Outcome measures

Outcome measures
Measure
Inotuzumab Ozogamicin (InO)
n=2 Participants
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Number of Participants With Extramedullary Disease (EMD) or Lymphoblastic Lymphoma (LBL) Who Achieved CR or CRi
1 Participants

Adverse Events

Inotuzumab Ozogamicin (InO)

Serious events: 19 serious events
Other events: 28 other events
Deaths: 17 deaths

Serious adverse events

Serious adverse events
Measure
Inotuzumab Ozogamicin (InO)
n=32 participants at risk
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
General disorders
Death
53.1%
17/32 • From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)
AEs were reported as per participants' medical records. There was no specific medical dictionary.
General disorders
Veno Occlusive Disease (VOD)
21.9%
7/32 • From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)
AEs were reported as per participants' medical records. There was no specific medical dictionary.

Other adverse events

Other adverse events
Measure
Inotuzumab Ozogamicin (InO)
n=32 participants at risk
Participants who were treated with InO as a monotherapy and completed at least one cycle of InO and were CD22 positive, in real world setting under routine clinical practice outside of clinical trials were observed retrospectively.
Hepatobiliary disorders
Aspartate aminotransferase high
28.1%
9/32 • From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)
AEs were reported as per participants' medical records. There was no specific medical dictionary.
Hepatobiliary disorders
Alanine aminotransferase high
18.8%
6/32 • From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)
AEs were reported as per participants' medical records. There was no specific medical dictionary.
Hepatobiliary disorders
Bilirubin high
25.0%
8/32 • From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)
AEs were reported as per participants' medical records. There was no specific medical dictionary.
Blood and lymphatic system disorders
Neutropenia
62.5%
20/32 • From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)
AEs were reported as per participants' medical records. There was no specific medical dictionary.
Blood and lymphatic system disorders
Febrile Neutropenia
43.8%
14/32 • From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)
AEs were reported as per participants' medical records. There was no specific medical dictionary.
Blood and lymphatic system disorders
Thrombocytopenia
84.4%
27/32 • From InO treatment initiation (Apr 2018) till end of follow-up (Apr 2023) [Maximum up to 61 Months]; data retrospectively collected from 08-Mar-2023 to 10-Jul-2023 (approximately 4 months of this study)
AEs were reported as per participants' medical records. There was no specific medical dictionary.

Additional Information

Pfizer ClinicalTrials.gov Call Center

Pfizer Inc.

Phone: 1-800-718-1021

Results disclosure agreements

  • Principal investigator is a sponsor employee Pfizer has the right to review disclosures, requesting a delay of less than 60 days. Investigator will postpone single center publications until after disclosure of pooled data (all sites), less than 12 months from study completion/termination at all participating sites. Investigator may not disclose previously undisclosed confidential information other than study results.
  • Publication restrictions are in place

Restriction type: OTHER