Study Evaluating Inotuzumab Ozogamicin [CMC-544] Administered In Combination With Rituximab In Subjects With Non-Hodgkin's Lymphoma (NHL)

B-Cell Lymphoma Clinical Trial

Official title:

A Phase 1/2 Study Of Cmc-544 Administered In Combination With Rituximab In Subjects With Follicular Or Diffuse Large B-cell Non-hodgkin's Lymphoma

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00299494
• Other study ID #: 3129K3-101
• Secondary ID: B19310042005-005
• Status: Completed
• Phase: Phase 1/Phase 2
• First received: March 2, 2006
• Last updated: February 6, 2018
• Start date: May 4, 2006
• Est. completion date: June 2, 2014

Study information

• Verified date: February 2018
• Source: Pfizer
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The purpose of the study is to determine the tolerability, the initial safety profile and maximum tolerated dose, and to obtain preliminary information on the antitumor activity of inotuzumab ozogamicin [CMC-544] in combination with rituximab in subjects with follicular, diffuse large B-Cell, or mantle cell NHL.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 119
• Est. completion date: June 2, 2014
• Est. primary completion date: May 19, 2014
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Subjects with CD20 and CD22-positive, follicular or diffuse large B-cell NHL who have not responded or progressed after 1 or 2 prior therapies; or subjects with CD20 and CD22-positive intermediate/aggressive NHL (diffuse large B-cell, mantle cell, transformed follicular or follicular grade 3b NHL) who have not responded or progressed after 1 or more prior therapies and are refractory to a previous rituximab containing therapy.

• Prior therapy must contain at least one course of rituximab therapy, as single agent or in combination.

• Measurable disease.

Exclusion Criteria:

• Subjects who are candidates for other potentially curative therapies.

• Subjects must not have received previous radioimmunotherapy.

• Subjects who have undergone a prior bone marrow transplantation within the last 6 months.

Related Conditions & MeSH terms

• B-Cell Lymphoma
• Lymphoma
• Lymphoma, B-Cell
• Lymphoma, Non-Hodgkin

Intervention

Drug:
• inotuzumab ozogamicin
IV, 1.8 mg/m2, q4w
• inotuzumab ozogamicin
IV, 1.8 mg/m2, q4w
• inotuzumab ozogamicin
IV, 1.8 mg/m2, q4w
• Rituximab
rituximab 375 mg/m^2 via IV infusion on Day 1

Locations

Country	Name	City	State
Australia	Royal Brisbane and Women's Hospital	Herston	Brisbane, QLD
Belgium	Universitair Ziekenhuis Gent	Gent
Belgium	University Hospital Gent - Department of Hematology	Gent
Belgium	Universitair Ziekenhuis Leuven - Campus Gasthuisberg	Leuven	Vlaams-brabant
France	Hôpital André MIGNOT	Le Chesnay
France	Hôpital Saint-Louis	Paris
France	CH Lyon Sud	Pierre Benite
Germany	Universitaetsklinik Bonn, Medizinische Klinik und Poliklinik III	Bonn
Germany	Universitaetsmedizin der Johannes Gutenberg-Universitaet, III. medizinische klinik und Poliklinik	Mainz
Hong Kong	Prince Of Wales Hospital	Shatin N.T.
Italy	Universita La Sapienza Cattedra di Ematologia	Roma
Korea, Republic of	Asan Medical Center	Seoul
Netherlands	Erasmus Medisch Centrum--	Rotterdam	Zuid-holland
Poland	Centrum Onkologii-Instytut im. Marii Sklodowskiej-Curie	Warszawa
Spain	Hospital Clinic I Provincial de Barcelona	Barcelona
Switzerland	University Hospital Zurich	Zurich
United Kingdom	Bart's Cancer Institute; Queen Mary University of London	London
United Kingdom	Derriford Hospital - Plymouth	Plymouth	Devon
United Kingdom	Somers Cancer Science Building MP824	Southampton	Hampshire
United States	Emory Clinic	Atlanta	Georgia
United States	Emory University Hospital	Atlanta	Georgia
United States	Emory University Investigational Drug Service	Atlanta	Georgia
United States	IDS Pharmacy	Birmingham	Alabama
United States	University of Alabama at Birmingham-	Birmingham	Alabama
United States	University of Alabama at Birmingham-	Birmingham	Alabama
United States	Rosewell Park Cancer Institute	Buffalo	New York
United States	Gabrail Cancer Center	Canton	Ohio
United States	Northwestern Medical Faculty Foundation	Chicago	Illinois
United States	Cleveland Clinic	Cleveland	Ohio
United States	University Hospitals of Cleveland	Cleveland	Ohio
United States	Gabrail Cancer Center	Dover	Ohio
United States	California Cancer Care, Inc.	Greenbrae	California
United States	The University of Texas M.D. Anderson Cancer Center	Houston	Texas
United States	Nevada Cancer Institute-	Las Vegas	Nevada
United States	Fox Chase Cancer Center	Philadelphia	Pennsylvania
United States	University of California Medical Center	San Francisco	California
United States	California Cancer Care	San Mateo	California
United States	UHHS - Westlake	Westlake	Ohio

Sponsors (2)

Lead Sponsor	Collaborator
Pfizer	UCB Pharma

Countries where clinical trial is conducted

United States,  Australia,  Belgium,  France,  Germany,  Hong Kong,  Italy,  Korea, Republic of,  Netherlands,  Poland,  Spain,  Switzerland,  United Kingdom, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Maximum Tolerated Dose (MTD) of Inotuzumab Ozogamicin in Combination With Rituximab (375 mg/m^2 )	Inotuzumab ozogamicin was dose escalated (3 to 6 evaluable participants enrolled per dose cohort) during the first 28 days after the first administration of inotuzumab ozogamicin + rituximab. Enrollment at the next dose level or enrollment of additional subjects into a cohort proceeded according to the following criteria: 0 dose-limiting toxicity (DLT) by Day 28 of first dose move to higher dose, 1 participant reporting DLT but no others in cohort by Day 28 of first dose move to higher dose, greater than 2 participants reporting DLT by Day 28 of first dose stop and prior dose level considered MTD. The worldwide medical monitor and investigators reviewed all significant study drug-related toxicities to determine if the dose escalation rules were satisfied and whether the dose escalation schedule required modification.	First 28-day cycle
Primary	Percentage of Participants With a Treatment Emergent Adverse Event (TEAE) (Safety Population)	A TEAE is any event that occurred after the first dose of study drug up to 56 days post the last dose of study drug (either rituximab or inotuzumab ozogamicin).	Protocol reporting period of from informed consent to at least 28 days after the last dose. This outcome measure time frame: From the first dose of study drug to up to 56 days after the last dose of either study drug.
Secondary	Percentage of Participants With Complete Response (CR), Unconfirmed CR (CRu), or Partial Response (PR)	CR: a. Complete disappearance of all detectable clinical and radiographic evidence of disease, disease-related symptoms, and normalization of NHL assignable biochemical abnormalities ; b. lymph nodes and nodal masses must have regressed to normal size; c. Spleen regressed in size and not palpable on physical exam, size of other organs enlarged due to disease decreased in size; d. Repeat bone marrow infiltrate clear. CRu: CR but allows for a. Residual lymph node mass >1.5 cm in greatest transverse diameter has regressed by more than 75% in diameter. Individual nodes that were previously confluent regressed more than 75 % in their product diameters; b. Indeterminate bone marrow. PR: a. =50 % decrease in product of the diameters (SPD) of the 6 largest dominant nodes or nodal masses; b. No increase in size of other nodes, liver, or spleen, c. Liver or spleen nodules regressed =50% in the SPD; d. Other organs usually assessable, no measurable disease present.	Approximately every 2 (during treatment) or 3 (during follow-up) to 6 months for up to 5 years from 1st dose
Secondary	Kaplan-Meier Estimates of Progression Free Survival (PFS)	The Kaplan-Meier method was used to determine PFS. 95% 2-sided confidence interval were calculated using stratified Cox proportional hazard regression. Relapsed or Progressive Disease (PD) requires the following: a. Appearance of any new lesions, b. Increase by >= 50% in the size of previously involved sites, c. >= 50% increase in greatest diameter of any previously identified node greater than 1 cm in its short axis or in the SPD of more than one node, d. >= 50% increase from nadir in the product diameter of any previously identified abnormal node for PRs or nonresponders, e. Enlarging spleen or liver.	From the date of first dose of test article until the first date on which disease progression or death was documented or new anticancer start, any of which could be reported up to 5 years post last dose
Secondary	Kaplan-Meier Estimates of the Probability of Being Progression Free at 6 Months	Progression Free Survival is defined as the time interval from the first dose of test article until the first date on which relapsed disease, progression, initiation of new anti-cancer treatment due to persistent/refractory disease, or death was documented, censored at the last tumor evaluation.	From the first dose to 6 months after first dose
Secondary	Kaplan-Meier Estimates of Overall Survival (OS)	OS was defined as the time from randomization to death due to any cause, censoring at the date of last contact. The Kaplan-Meier method was used to determine OS. 95% 2-sided confidence interval were calculated using stratified Cox proportional hazard regression.	From the first dose up to 5 years post last dose
Secondary	Kaplan-Meier Estimates of the Probability of Survival at 6 Months	Overall Survival (OS) was defined as the time from randomization to death due to any cause, censoring at the date of last contact. The Kaplan-Meier method was used to determine OS. 95% 2-sided confidence interval were calculated using stratified Cox proportional hazard regression.	From the first dose to 6 months after first dose.
Secondary	Kaplan-Meier Estimates of Time to Tumor Progression (TTP)	TTP is defined as the interval from the first dose of the test article until the first date on which relapsed disease or progression, or death secondary to progression is documented, censored at the last disease assessment. Relapsed or Progressive Disease (PD) requires the following: a. Appearance of any new lesions, b. Increase by >= 50% in the size of previously involved sites, c. >= 50% increase in greatest diameter of any previously identified node greater than 1 cm in its short axis or in the SPD of more than one node, d. >= 50% increase from nadir in the product diameter of any previously identified abnormal node for PRs or nonresponders, e. Enlarging spleen or liver. The Kaplan-Meier method was used to determine TTP. 95% 2-sided confidence interval were calculated using stratified Cox proportional hazard regression.	From the date of first dose of test article until the first date on which disease progression or death was documented, any of which could be reported up to 5 years post last dose.
Secondary	Kaplan-Meier Estimates of the Probability of Being Event Free at 6 Months	Time-to-Tumor Progression (TTP): is defined as the interval from the first dose of the test article until the first date on which relapsed disease or progression, or death secondary to progression is documented, censored at the last disease assessment. Relapsed or Progressive Disease (PD) requires the following: a. Appearance of any new lesions, b. Increase by >=50% in the size of previously involved sites, c. >= 50% increase in greatest diameter of any previously identified node greater than 1 cm in its short axis or in the SPD of more than one node, d. >= 50% increase from nadir in the product diameter of any previously identified abnormal node for PRs or nonresponders, e. Enlarging spleen or liver. The Kaplan-Meier method was used to determineTTP. 95% 2-sided confidence interval were calculated using stratified Cox proportional hazard regression.	From enrollment to up to 6 months from 1st dose.
Secondary	Duration of Response (CR+CRu+PR)	Time from date measurement criteria met for CR, CRu, or PR (whichever occurred first) until first date relapsed disease/date of death. CR: Complete disappearance of all detectable clinical, radiographic evidence of disease, disease-related symptoms, normalization of NHL assignable biochemical abnormalities; lymph nodes, nodal masses regressed to normal size; spleen size regressed, not palpable on physical exam, size of other organs enlarged due to disease. CRu: CR but allows for: residual lymph node mass >1.5 cm in greatest transverse diameter that regressed >75% in product diameter. Individual nodes previously confluent, regressed by >75% in their product diameters; Indeterminate bone marrow. PR: =50% decrease in SPD of 6 largest dominant nodes/nodal masses; No increase in size of other nodes, liver, or spleen; Splenic/hepatic nodules regressed by =50% in SPD; Except splenic/hepatic nodules, involvement of other organs assessable and no measurable disease present.	Time from date measurement criteria are met for CR, CRu, or PR (whichever status is recorded first) until the first date relapsed disease or date of death (whichever occurs first) is objectively documented.
Secondary	Area Under the Serum Concentration-time Profile From Time Zero Extrapolated to Infinite Time (AUCinf) of Inotuzumab Ozogamicin in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 30 and Day 58	Serum concentration of inotuzumab ozogamicin on Dosing Days 30 and 58 were measured. AUCinf of inotuzumab ozogamicin was reported. AUCinf: AUClast (area under the serum concentration-time profile for inotuzumab ozogamicin from time zero to the time of the last quantifiable concentration) +(Clast [last quantifiable concentration]/kel [elimination rate constant]) where Clast is the predicted serum concentration of inotuzumab ozogamicin at the last quantifiable timepoint estimated from the log-linear regression analysis. Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	AUClast of Inotuzumab Ozogamicin in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 1, Day 30 and Day 58	Serum concentration of inotuzumab ozogamicin on Dosing Days 1, 30 and 58 were measured. AUC of inotuzumab ozogamicin was reported. AUClast is area under the serum concentration-time profile from time zero to the time of the Clast, using Linear/Log trapezoidal method. Study Days Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 1 for Cycle 1; Dosing Day 30 for Cycle 2; and Dosing Day 58 for Cycle 3.	Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Time of the Last Quantifiable Serum Concentration in a Dosing Interval (Tlast) of Inotuzumab Ozogamicin in Participants Receving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 1, Day 30 and Day 58	Tlast of inotuzumab ozogamicin on Dosing Days 1, 30, and 58 was reported. Tlast: Time of last quantifiable concentration of inotuzumab ozogamicin. Observed directly from data. Study Days Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 1 for Cycle 1; Dosing Day 30 for Cycle 2; and Dosing Day 58 for Cycle 3.	Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Area Under the Steady-state Serum Concentration-time Curve (AUCtau) of Inotuzumab Ozogamicin in Participants Receving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 1, Day 30 and Day 58	Steady-state serum concentrations of inotuzumab ozogamicin on Dosing Days 1, 30 and 58 were measured. AUCtau of inotuzumab ozogamicin was reported. AUCtau=AUC over dosage interval tau calculated using Linear/log trapezoidal method. Study Days Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 1 for Cycle 1; Dosing Day 30 for Cycle 2; and Dosing Day 58 for Cycle 3.	Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Peak Serum Concentration (Cmax) of Inotuzumab Ozogamicin in Participants Receving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 1, Day 30 and Day 58	Serum concentration of inotuzumab ozogamicin on Dosing Days 1, 30, and 58 were measured. Cmax of inotuzumab ozogamicin was reported. Cmax was observed directly from data. Study Days Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 1 for Cycle 1; Dosing Day 30 for Cycle 2; and Dosing Day 58 for Cycle 3.	Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Time to Reach Maximum Concentration (Tmax) of Inotuzumab Ozogamicin in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 1, Day 30 and Day 58	Tmax: Time at which Cmax occurs. Observed directly from data as time of first occurrence. Study Days Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 1 for Cycle 1; Dosing Day 30 for Cycle 2; and Dosing Day 58 for Cycle 3.	Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Average Serum Concentration at Steady State (Cav) of Inotuzumab Ozogamicin in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 30 and Day 58	Cav: AUCtau (Area under the concentration time profile)/tau for Dosing Day 30 Cycle 2 and Dosing Day 58 Cycle 3. Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Minimum Observed Serum Trough Concentration (Cmin) of Inotuzumab Ozogamicin in Participants Receiving Inotuzumab+Rituximab on Dosing Day 30 and Day 58	Cmin: Lowest concentration observed during the dosing interval tau. Observed directly from data from Dosing Day 30 for Cycle 2; and Dosing Day 58 for Cycle 3. Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Clearance (CL) of Serum Inotuzumab Ozogamicin in Participants Receiving Inotuzumab+Rituximab on Dosing Day 30 and Day 58	Clearance is defined as Dose/AUCinf. Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Steady-state Volume of Distribution (Vss) of Inotuzumab Ozogamicin in Serum in Participants Receiving Inotuzumab MTD+Rituximab 375 mg/m^2 on Dosing Day 30 and Day 58	Vss of inotuzumab ozogamicin on Dosing Days 30 and 58 were reported. Vss=CL*MRT (mean residence time). Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	MRT of Inotuzumab Ozogamicin in Serum in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 30 and Day 58	MRT: AUMCinf/AUCinf - DOF (degrees of freedom)/2, where AUMCinf is the area under the first moment curve derived using the linear/log trapezoidal method, and DOF is the duration of the IV infusion dose. Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Serum Decay Half-Life (t1/2) of Inotuzumab Ozogamicin in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 30 and Day 58	Termnial half-life (t½): Loge(2)/kel, where kel is the terminal phase rate constant calculated by a linear regression of the log-linear concentration-time curve.; Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	AUCinf of Total Calicheamicin (Conjugated + Unconjugated) in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 30 and Day 58	AUCinf: AUClast+(Clast/kel) where Clast is the predicted serum concentration at the last quantifiable timepoint estimated from the log-linear regression analysis. Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	AUClast of Total Calicheamicin (Conjugated Plus Unconjugated) in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 1, Day 30 and Day 58	AUClast: AUC over dosage interval through last measurable time point, Tlast, using Linear/Log trapezoidal method. Study Days Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 1 for Cycle 1; Dosing Day 30 for Cycle 2; and Dosing Day 58 for Cycle 3.	Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Time of the Last Quantifiable Concentration in a Dosing Interval (Tlast) of Total Calicheamicin (Conjugated Plus Unconjugated) in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 1, Day 30 and Day 58	Tlast: Time of last quantifiable concentration. Observed directly from data. Study Days Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 1 for Cycle 1; Dosing Day 30 for Cycle 2; and Dosing Day 58 for Cycle 3.	Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Area Under the Steady-state Serum Concentration-time Curve (AUCtau) for Total Calicheamicin (Conjugated Plus Unconjugated) in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 1, Day 30, and Day 58	AUCtau=AUC over dosage interval tau calculated using Linear/log trapezoidal method. Study Days Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 1 for Cycle 1; Dosing Day 30 for Cycle 2; and Dosing Day 58 for Cycle 3.	Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Peak Serum Concentration (Cmax) of Total Calicheamicin (Conjugated Plus Unconjugated) in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 1, Day 30 and Day 58	Cmax: Observed directly from data Study Days Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 1 for Cycle 1; Dosing Day 30 for Cycle 2; and Dosing Day 58 for Cycle 3.	Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Time of Observed Maximum Concentration (Tmax) of Total Calicheamicin (Conjugated+Unconjugated) in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 1, Day 30 and Day 58	Tmax: Time at which Cmax occurs. Observed directly from data as time of first occurrence.; Study Days Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 1 for Cycle 1; Dosing Day 30 for Cycle 2; and Dosing Day 58 for Cycle 3.	Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Average Serum Concentration (Cav) of Total Calicheamicin (Conjugated Plus Unconjugated) in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 30 and Day 58	Cav: AUCtau/tau for Dosing Day 30 Cycle 2 and Dosing Day 58 Cycle 3. Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Minimum Observed Serum Trough Concentration (Cmin) of Total Calicheamicin (Conjugated Plus Unconjugated) in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 30 and Day 58	Cmin: Lowest concentration observed during the dosing interval tau. Observed directly from data from Day 30 for Cycle 2; and Day 58 for Cycle 3. Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Clearance (CL) of Total Calicheamicin (Conjugated Plus Unconjugated) in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 30 and Day 58	Clearance defined as Dose/AUCinf. Corresponds to Dosing Day 30 for Cycle 2 and dosing Day 58 for Cycle 3. Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Steady-state Volume (Vss) of Total Calicheamicin (Conjugated Plus Unconjugated) Distribution in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 30 and Day 58	Vss: Steady-state volume of distribution CL*MRT of inotuzumab ozogamicin Day 30 for Cycle 2; and Day 58 for Cycle 3. Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Mean Residence Time (MRT) of Total Calicheamicin (Conjugated Plus Unconjugated) in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 30 and Day 58	MRT: AUMCinf/AUCinf - DOF/2, where AUMCinf is the area under the first moment curve derived using the linear/log trapezoidal method, and DOF is the duration of the IV infusion dose. Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Serum Decay Half-Life (t1/2) of Total Calicheamicin (Conjugated Plus Unconjugated) in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 30 and Day 58	Termnial half-life (t½): Loge(2)/kel, where kel is the terminal phase rate constant calculated by a linear regression of the log-linear concentration-time curve.; Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Area Under the Steady-state Serum Concentration-time Curve (AUClast) of Unconjugated Calicheamicin in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 1, Day 30 and Day 58	AUClast: AUC over dosage interval through last measurable time point, Tlast, using Linear/Log trapezoidal method. Study Days Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 1 for Cycle 1; Dosing Day 30 for Cycle 2; and Dosing Day 58 for Cycle 3.	Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Time of the Last Quantifiable Concentration in a Dosing Interval (Tlast) of Unconjugated Calicheamicin in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 1, Day 30 and Day 58	Tlast: Time of last quantifiable concentration. Observed directly from data. Study Days Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 1 for Cycle 1; Dosing Day 30 for Cycle 2; and Dosing Day 58 for Cycle 3.	Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Peak Serum Concentration (Cmax) of Unconjugated Calicheamicin in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 1, Day 30 and Day 58	Cmax: Observed directly from data Study Days Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 1 for Cycle 1; Dosing Day 30 for Cycle 2; and Dosing Day 58 for Cycle 3.	Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Time of Observed Maximum Concentration (Tmax) of Unconjugated Calicheamicin in Participants Receiving Inotuzumab Ozogamicin + Rituximab on Dosing Day 1, Day 30 and Day 58	Tmax: Time at which Cmax occurs. Observed directly from data as time of first occurrence. Study Days Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 1 for Cycle 1; Dosing Day 30 for Cycle 2; and Dosing Day 58 for Cycle 3.	Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Minimum Observed Serum Trough Concentration (Cmin) of Unconjugated Calicheamicin in Participants Receiving Inotuzumab Ozogamicin+Rituximab on Dosing Day 30 and Day 58	Cmin: Lowest concentration observed during the dosing interval tau. Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Area Under the Serum Concentration-time Profile From Time Zero Extrapolated to Infinite Time (AUCinf) of Inotuzumab Ozogamicin Antibody in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m2 on Dosing Day 30 and Day 58	AUCinf: AUClast+(Clast/kel) where Clast is the predicted serum concentration at the last quantifiable timepoint estimated from the log-linear regression analysis. Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Area Under the Steady-state Concentration-time Curve (AUClast) of Serum Inotuzumab Ozogamicin Antibody in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 1, Day 30 and Day 58	AUClast: AUC over dosage interval through last measurable time point, Tlast, using Linear/Log trapezoidal method. Study Days Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 1 for Cycle 1; Dosing Day 30 for Cycle 2; and Dosing Day 58 for Cycle 3.	Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Time of the Last Quantifiable Concentration in a Dosing Interval (Tlast) of Serum Inotuzumab Ozogamicin Antibody in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 1, Day 30 and Day 58	Tlast: Time of last quantifiable concentration. Observed directly from data. Study Days Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 1 for Cycle 1; Dosing Day 30 for Cycle 2; and Dosing Day 58 for Cycle 3.	Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Serum Decay Half-Life (t1/2) of Inotuzumab Ozogamicin Antibody in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab on Dosing Day 30 and Day 58	Termnial half-life (t½): Loge(2)/kel, where kel is the terminal phase rate constant calculated by a linear regression of the log-linear concentration-time curve.; Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Area Under the Steady-state Serum Concentration-time Curve (AUCtau) of Inotuzumab Ozogamicin Antibody in Participants Receiving Inotuzumab Ozogamicin MTD+ Rituximab 375 mg/m^2 on Dosing Day 1, Day 30, and Day 58	AUCtau=AUC over dosage interval tau calculated using Linear/log trapezoidal method. Study Days Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 1 for Cycle 1; Dosing Day 30 for Cycle 2; and Dosing Day 58 for Cycle 3.	Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Peak Concentration (Cmax) of Serum Inotuzumab Ozogamicin Antibody in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 1, Day 30 and Day 58	Cmax: Observed directly from data Study Days Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 1 for Cycle 1; Dosing Day 30 for Cycle 2; and Dosing Day 58 for Cycle 3.	Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Time to Reach Maximum Concentration (Tmax) of Serum Inotuzumab Ozogamicin Antibody in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 1, Day 30 and Day 58	Tmax: Time at which Cmax occurs. Observed directly from data as time of first occurrence. Study Days Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 1 for Cycle 1; Dosing Day 30 for Cycle 2; and Dosing Day 58 for Cycle 3.	Cycle 1, Days 1 (0 hour), 2 (0, 1, 4 hours), 4, 8, 10, 15, and 29; Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Average Serum Concentration (Cav) of Inotuzumab Ozogamicin Antibody in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 30 and Day 58	Cav: AUCtau/tau for Dosing Day 30 Cycle 2 and Dosing Day 58 Cycle 3. Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Minimum Observed Serum Trough Concentration (Cmin) of Inotuzumab Ozogamicin Antibody in Participants Receiving Inotuzumab MTD + Rituximab 375 mg/m^2 on Dosing Day 30 and Day 58	Cmin: Lowest concentration observed during the dosing interval tau. Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Clearance (CL) of Serum Inotuzumab Ozogamicin Antibody in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 30 and Day 58	Clearance defined as Dose/AUCinf. Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85
Secondary	Steady-state Volume (Vss) of Inotuzumab Ozogamicin Antibody Distribution in Participants Receiving Inotuzumab Ozogamicin MTD + Rituximab 375 mg/m^2 on Dosing Day 30 and Day 58	Vss: Steady-state volume of distribution CL*MRT of inotuzumab ozogamicin Day 30 for Cycle 2; and Day 58 for Cycle 3. Study Days Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57 and Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85 correspond to Dosing Day 30 for Cycle 2 and Dosing Day 58 for Cycle 3.	Cycle 2, Days 30 (0, 1, 4 hours), 32, 36, 38, 43, 50, and 57; Cycle 3, Days 58 (0, 1, 4 hours), 60, 64, 66, 71, 78, and 85

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