A Phase II, Open Label, Single Arm, Multicenter Study of... | NCT01808326

Status Module

Description Module

Label	Type	Description	Intervention Names
chlorambucil	Experimental	chlorambucil dose: 10mg/m2 PO at days 1-7 every 28 days; duration: minimum of 3 cycles until best response or maximum of 12 treatment cycles	Drug: chlorambucil, tablets

Name	Type	Description	Arm Group Labels	Other Names
chlorambucil, tablets	Drug	2mg tablets, chlorambucil dose: 10mg/m2 PO at days 1-7 every 28 days; duration: minimum of 3 cycles until best response or maximum of 12 cycles	chlorambucil

Outcomes Module

Primary Outcomes

Measure	Description	Time Frame
Number of Participants With a Best Response of Either Complete Remission (CR), Nodular Partial Remission (nPR), Complete Remission-incomplete (CRi) or Partial Remission (PR), as Assessed by the Investigator, IRC and IRC With CT	According to the criteria based on the 2008 revision of the International Workshop on Chronic Lymphocytic Leukemia (IWCLL) of the National Cancer Institute-Sponsored Working Group Guidelines (NCI-WG), participants with complete remission (CR), nodular partial remission (nPR), complete remission-incomplete (CRi) and partial remission (PR) were classified as responders, while stable disease (SD) and progressive disease (PD) were classified as non-responders. Participants with unknown or missing responses were considered as non-responders. Assessment was completed by the Investigator, Independent Review Committee (IRC), and IRC with Computed Tomography (CT).	From the start of treatment until disease progression or death (up to Week 61.1)

Secondary Outcomes

Measure	Description	Time Frame
Number of Participants With the Best Overall Response (OR), as Assessed by the Investigator, IRC and IRC With CT	OR is defined as the number of participants achieving either a confirmed CR or PR. Assessment was completed by the Investigator, IRC, and IRC with CT. CR (all the criteria at least 2 months after last treatment): no lymphadenopathy (Ly) > 1.5 cm/ hepatomegaly/ splenomegaly/ constitutional symptoms; neutrophils >1500 per microliter (µL), platelets (PL) >100,000/µL, hemoglobin (Hb) >11 grams/deciliter (g/dL), lymphocytes (LC) <4000/µL, bone marrow (BM) sample must be normocellular for age, <30% LC, no lymphoid nodule. CRi: CR criteria, persistent anemia/thrombocytopenia/neutropenia unrelated to CLL but related to drug toxicity. PR: >=50% decrease in LC, Ly, size of liver and spleen and at least one of the following results: PL >100,000/µL or 50% improvement over Baseline (BL), Hb >11 g/dL or 50% improvement over BL. nPR: persistent nodules BM.

Eligibility Module

Eligibility Criteria

Inclusion Criteria:

Diagnosis of CLL defined by:Circulating B lymphocytes ≥5,000 /μL AND Flow cytometry confirmation of immunophenotype with CD5, CD19, CD20, and CD23 prior to Visit 2.
Considered inappropriate for fludarabine-based therapy.
Active disease and indication for treatment based on the IWCLL updated NCI-WG guidelines defined by presenting at least any one of the following conditions: Evidence of progressive marrow failure as manifested by development or worsening of anemia and/or thrombocytopenia.

Massive (i.e. at least 6 cm below the left costal margin) or progressive or symptomatic splenomegaly.

Massive nodes (i.e. at least 10 cm in longest diameter) or progressive or symptomatic lymphadenopathy.

Progressive lymphocytosis with an increase of more than 50% over a two month period or an lymphocyte doubling time of less than 6 months.

A minimum of any one of the following disease-related symptoms must be present: a) Unintentional weight loss ≥10% within the previous six months; b) Fevers >38.0°C for ≥ 2 weeks without evidence of infection; or c) Night sweats for more than 1 month without evidence of infection

Not been previously treated for CLL (prior autoimmune hemolytic anemia treatment with corticosteroids permitted).
ECOG Performance Status of 0-2.
QTc <450 msec or QTc <480 msec for patients with bundle branch block The QTc is the QT interval corrected for heart rate according to either Bazett's formula (QTcB) or to Fridericia's formula (QTcF), machine or manual overread, for males and females. The specific formula that will be used in a protocol should be determined prior to initiation of the study, and the formula used to determine inclusion and discontinuation should be the same throughout the study.

The QTc should be based on single or averaged QTc values of triplicate electrocardiograms (ECGs) obtained over a brief recording period.

Life expectancy of at least 6 months, in the opinion of the investigator.
Age ≥ 20 years
Signed written informed consent prior to performing any study-specific procedures (the results of other procedures predating the informed consent can be used).

Exclusion Criteria:

Prior immuno- or chemotherapy for CLL or small lymphocytic lymphoma (SLL) with any agent except corticosteroids used to treat autoimmune hemolytic anemia.
Previous autologous or allogeneic stem cell transplantation.
Active autoimmune hemolytic anemia (AIHA) requiring corticosteroid therapy >100 mg/day equivalent to hydrocortisone, or chemotherapy.
Known transformation of CLL (e.g. Richter).
Known CNS involvement of CLL.
Chronic or current active infectious disease requiring systemic antibiotics, antifungal, or antiviral treatment such as, but not limited to, chronic renal infection, chronic chest infection with bronchiectasis, tuberculosis and active Hepatitis C.
Other past or current malignancy. Subjects who have been free of malignancy for at least 5 years, or have a history of completely resected non-melanoma skin cancer, or successfully treated in situ carcinoma are eligible.
Clinically significant cardiac disease including unstable angina, acute myocardial infarction within 6 months prior to screening, congestive heart failure, and arrhythmia requiring therapy, with the exception of extra systoles or minor conduction abnormalities.
History of significant cerebrovascular disease or event with significant symptoms or sequelae.
Glucocorticoid use, unless given in doses ≤ 100 mg/day hydrocortisone (or equivalent dose of other glucocorticoid) for <7 days for exacerbations other than CLL (e.g. asthma).
Known HIV positive.
Positive serology for Hepatitis B (HB) defined as a positive test for HBsAg. In addition, if negative for HBsAg but HBcAb and/or HBsAb positive, an HBV DNA test will be performed, and if positive the subject will be excluded.
Screening laboratory values:

Creatinine >2.0 times upper normal limit (unless normal creatinine clearance). Total bilirubin > 2.0 times upper normal limit (unless due to Gilbert's syndrome).

Alanine aminotransferase (ALT) > 3.0 times upper normal limit.

Treatment with any known non-marketed drug substance or experimental therapy within 5 terminal half lives or 4 weeks prior to Visit 1, whichever is longer, treatment with any anti-CD20 monoclonal antibody within 3 months of Visit 1, or participation in any other interventional clinical study.
Known or suspected inability to comply with study protocol.
Lactating women, women with a positive pregnancy test within 7 days prior to administration of the investigational product or women (of childbearing potential) as well as men with partners of childbearing potential, who are not willing to use adequate contraception from study start through one year following last treatment dose. Adequate contraception is defined as oral hormonal birth control, intrauterine device, and male partner sterilization (if male partner is sole partner for that subject) and the double barrier method (condom or occlusive cap plus spermicidal agent).

Name	Affiliation	Role
GSK Clinical Trials	GlaxoSmithKline	Study Director

Facility	Status	City	State	ZIP	Country	Contacts
GSK Investigational Site		Aichi		466-8650	Japan
GSK Investigational Site

Results Section

Participant Flow Module

Arm/Group Information

ID	Title	Description
FG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Baseline Characteristics Module

Outcome Measures Module

Adverse Events Module

More Info Module

ID	Title	Description
BG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Units	Counts
Participants	BG0005

Type

Title

Description

Population Description

Reporting Status

Anticipated Posting Date

Parameter Type

Dispersion Type

Unit of Measure

Calculate Percentage

Time Frame

Units Analyzed

Denominator Units Selected

Arm/Group Information

Denominators

Classes

Analyses

Primary

Number of Participants With a Best Response of Either Complete Remission (CR), Nodular Partial Remission (nPR), Complete Remission-incomplete (CRi) or Partial Remission (PR), as Assessed by the Investigator, IRC and IRC With CT

According to the criteria based on the 2008 revision of the International Workshop on Chronic Lymphocytic Leukemia (IWCLL) of the National Cancer Institute-Sponsored Working Group Guidelines (NCI-WG), participants with complete remission (CR), nodular partial remission (nPR), complete remission-incomplete (CRi) and partial remission (PR) were classified as responders, while stable disease (SD) and progressive disease (PD) were classified as non-responders. Participants with unknown or missing responses were considered as non-responders. Assessment was completed by the Investigator, Independent Review Committee (IRC), and IRC with Computed Tomography (CT).

All Subjects Population: all participants who received at least one dose of investigational product.

Posted

Number

Participants

From the start of treatment until disease progression or death (up to Week 61.1)

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Units	Counts
Participants	OG0005

Title

Denominators

Categories

IRC with CT Assessed

Title	Measurements
	OG0003

IRC Assessed

Title	Measurements
	OG0005

Investigator-Assessed

Secondary

Number of Participants With the Best Overall Response (OR), as Assessed by the Investigator, IRC and IRC With CT

OR is defined as the number of participants achieving either a confirmed CR or PR. Assessment was completed by the Investigator, IRC, and IRC with CT. CR (all the criteria at least 2 months after last treatment): no lymphadenopathy (Ly) > 1.5 cm/ hepatomegaly/ splenomegaly/ constitutional symptoms; neutrophils >1500 per microliter (µL), platelets (PL) >100,000/µL, hemoglobin (Hb) >11 grams/deciliter (g/dL), lymphocytes (LC) <4000/µL, bone marrow (BM) sample must be normocellular for age, <30% LC, no lymphoid nodule. CRi: CR criteria, persistent anemia/thrombocytopenia/neutropenia unrelated to CLL but related to drug toxicity. PR: >=50% decrease in LC, Ly, size of liver and spleen and at least one of the following results: PL >100,000/µL or 50% improvement over Baseline (BL), Hb >11 g/dL or 50% improvement over BL. nPR: persistent nodules BM.

All Subjects Population

Posted

Number

Participants

From the start of treatment until disease progression or death (up to Week 61.1)

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Secondary

Progression Free Survival (PFS), as Assessed by the Investigator and the IRC

Progression-free survival (PFS) is defined as the time from the start of treatment of investigational product until the first documented sign of PD or death due to any cause. PD requires at least one of the following: lymphadenopathy, appearance of any new lesion such as enlargerd lymph nodes (>1.5 cm) spleen or liver or other infiltrates or an increase by 50% or more in the greatest diameter of any previous site; an increase by 50% or more in the previously noted enlargement of the liver or spleen, an increase by 50% or more in the numbers of blood lymphocytes with at least 5000 lymphocytes per microliter, transformation to a more aggressive histology, or occurrence of cytopenia attributable to chronic lymphocytic leukaemia. Par. who were alive and had not progressed at the time of analysis or if a progression event or death occurred after extensive lost-to-follow-up time or if new anti-cancer therapy was started were censored at the date of the last visit with adequate assessment.

All Subjects Population

Posted

Median

95% Confidence Interval

Weeks

From the start of treatment until disease progression or death (up to Week 61.1)

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Secondary

Overall Survival (OS)

Overall survival is defined as time from the start of treatment until death due to any cause. Participants who had not died were censored at the date of last contact.

All Subjects Population

Posted

Median

95% Confidence Interval

Weeks

From the start of treatment until death (up to Week 61.1)

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Units	Counts

Secondary

Time to Response, as Assessed by the IRC

Time to response is defined as time from the start of treatment until the first response (CR/PR). Time to Response analyses was restricted to the subgroup of the population who experienced an overall response (CR/ nPR/CRi/PR) during the study. CR (all the criteria at least 2 months after last treatment): no lymphadenopathy (Ly) > 1.5 cm/ hepatomegaly/ splenomegaly/ constitutional symptoms; neutrophils >1500 per microliter (µL), platelets (PL) >100,000/µL, hemoglobin (Hb) >11 grams/deciliter (g/dL), lymphocytes (LC) <4000/µL, bone marrow (BM) sample must be normocellular for age, <30% LC, no lymphoid nodule. CRi: CR criteria, persistent anemia/thrombocytopenia/neutropenia unrelated to CLL but related to drug toxicity. PR: >=50% decrease in LC, Ly, size of liver and spleen and at least one of the following results: PL >100,000/µL or 50% improvement over Baseline (BL), Hb >11 g/dL or 50% improvement over BL. nPR: persistent nodules BM.

All Subjects Population. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles). Different participants may have been analyzed at different time points, so the overall number of participants analyzed reflects everyone in the All Subjects Population.

Posted

Median

95% Confidence Interval

Weeks

From the start of treatment until the first response (CR/PR) (up to Week 61.1)

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Secondary

Duration of Response, as Assessed by the IRC

Duration of response is defined as the time from the initial response (CR or PR) until progression or death. CR (all the criteria at least 2 months after last treatment): no lymphadenopathy (Ly) > 1.5 cm/ hepatomegaly/ splenomegaly/ constitutional symptoms; neutrophils >1500 per microliter (µL), platelets (PL) >100,000/µL, hemoglobin (Hb) >11 grams/deciliter (g/dL), lymphocytes (LC) <4000/µL, bone marrow (BM) sample must be normocellular for age, <30% LC, no lymphoid nodule. CRi: CR criteria, persistent anemia/thrombocytopenia/neutropenia unrelated to CLL but related to drug toxicity. PR: >=50% decrease in LC, Ly, size of liver and spleen and at least one of the following results: PL >100,000/µL or 50% improvement over Baseline (BL), Hb >11 g/dL or 50% improvement over BL. nPR: persistent nodules BM.

All Subjects Population

Posted

Median

95% Confidence Interval

Weeks

From the initial response (CR/PR) until disease progression or death (up to Week 61.1)

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Secondary

Time to Next Chronic Lymphocytic Leukemia (CLL) Therapy

Time to next CLL therapy is defined as the time from start of treatment until the first administration of the next CLL treatment other than chlorambucil administrations scheduled in this study. Time to next CLL therapy was restricted to the subgroup of the population who receive a next CLL therapy after experiencing disease progression.

Posted

Median

95% Confidence Interval

Weeks

From the start of treatment until the first administration of the next CLL treatment (up to Week 61.1)

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Secondary

Number of Participants With Improvement in Eastern Cooperative Oncology Group (ECOG) Performance Status (PS)

ECOG PS is a scale to assess disease progression, extent to which disease affects the daily living abilities and determines appropriate treatment and prognosis. It is scored on a scale of 0 to 5 as, 0 (fully active), 1 (restricted in physically strenuous activity but ambulatory and able to carry out work of a light or sedentary nature), 2 (ambulatory and capable of all self cares but unable to carry out any work activities, Up and about > 50% of waking hours), 3 (capable of only limited self cares, confined to bed or chair > 50% of waking hours), 4 (completely disabled, cannot carry on any self cares, totally confined to bed or chair), 5 (death). Improvement is defined as decrease from baseline by at least one step on the ECOG performance status scale (yes/no). Baseline was last pre-dose assessment performed on Cycle 1 Day 1(C1 D1). When C1 D1 was missing, the last assessment performed prior to pre-dose C1 D1 was used. It was performed on Day 1 of each cycle and follow-up (FU).

Posted

Number

Participants

Baseline, Cycle (C) 2-Day (D) 29, C3-D57, C4-D85, C5-D113, C6-D141, C7-D169, C8-D197, C9-D225, FU 1- PDFU 1, FU 85-PDFU 85, and FU 169-PDFU 169

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Secondary

Number of Participants With no B-symptoms and With at Least One B-symptom Over Time

The number of participants with no B-symptoms (no night sweat, no weight loss, no fever and no extreme fatigue) and the number of participants with at least one of the B-symptoms are summarized by assessment time. The presence of the B-symptoms was assessed at Baseline, Day 1 of each treatment cycle and follow-up (FU). Baseline was the last pre-dose assessment performed at C1 D1.

Posted

Number

Participants

Baseline, C2-D29, C3-D57, C4-D85, C5-D113, C6-D141, C7-D169, C8-D197, C9-D225, FU 1-PDFU 1, FU 85-PDFU 85, and FU 169-PDFU 169

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Secondary

Number of Participants With Any Adverse Events (AE) or Serious Adverse Events (SAE)

An AE is defined as any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a medicinal product whether or not considered related to the medicinal product. A SAE is any untoward medical occurrence that, at any dose results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, is a congenital anomaly/birth defect or is associated with protocol specified liver injury and impaired liver function or is any protocol specific AEs.

All Subjects Population

Posted

Number

Participants

From the start of treatment up to Week 61.1

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Secondary

Number of Participants With Adverse Events by the Indicated Maximum Toxicity Grade

An AE is defined as any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a medicinal product whether or not considered related to the medicinal product. Non-hematologic AEs were graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events version 4.03 (NCI CTCAE V4.03): Grade 0, none; Grade 1, mild; Grade 2, moderate; Grade 3, severe or medically significant; Grade 4, life-threatening consequences; Grade 5, death related to AE

All Subjects Population

Posted

Number

Participants

From the start of treatment up to Week 61.1

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Secondary

Number of Participants With at Least One Grade 3/Grade 4 Adverse Event of Infection or Myelosuppression (Anemia, Neutropenia, and Thrombocytopenia)

Number of participants with a Grade 3 or Grade 4 adverse event of infection or myelosuppression (anemia, neutropenia, and thrombocytopenia) are presented. Myelosuppression is defined as the decrease in the ability of the bone marrow to produce blood cells. AEs were graded according to NCI common terminology criteria for adverse events (CTCAE) grade, version 3.0 (1, mild; 2, moderate; 3, severe; 4, life-threatening/disabling; 5, death).

All Subjects Population

Posted

Number

Participants

From the start of treatment up to Week 61.1

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Secondary

Change From Baseline in the Immunoglobulin(Ig) Antibodies IgA, IgG, and IgM

Immunoglobulins, or antibodies, are large proteins used by the immune system to identify and neutralize foreign particles such as bacteria and viruses. Their normal blood levels indicate proper immune status. Low levels indicate immuno-suppression. IgA, IgG, and IgM were measured in the blood samples of the participants.Peripheral samples were collected for the analysis of IgA, IgG, and IgM at Baseline and 28 days after Day 1 of the last treatment cycle (FU 1-PDFU 1) for all participants, and 168 days after day of FU 1-PDFU 1 for participants with CR, PR, and SD. Baseline was the last pre-dose assessment performed on Cycle 1-Day 1. The the last assessment performed prior to pre-dose Cycle 1-Day 1 was used if Cycle 1-Day 1 was missing. Change from Baseline was calculated as the post-Baseline value minus the Baseline value.

Posted

Mean

Standard Deviation

Grams per liter

Baseline, FU 1-PDFU 1, FU 85-PDFU 85, and FU 169-PDFU 169

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Secondary

Number of Participants With Positive Minimal Residual Disease (MRD)

MRD refers to the small number of leukemic cells that remain in the participant during treatment or after treatment at the time the participant achieved a confirmed CR and in whom bone marrow test was performed. A bone marrow sample was examined by flow cytometry (Cluster of differentiation [CD]5, CD19, CD20, and CD23). MRD positive is defined as more than one CLL cell per 10000 leukocytes.

All Subjects Population

Posted

Number

Participants

From the start of treatment up to Week 61.1

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Secondary

Expression of Beta 2 Microglobulin

Blood samples were collected at the Baseline (Day 1 of Cycle 1) visit for prognostic biomarker Beta 2 microglobulin measurements.

All Subjects Population

Posted

Mean

Standard Deviation

Nanomoles per Liter

Baseline (Cycle 1 Day 1)

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Units	Counts
Participants

Secondary

Expression of Complement CH50

Peripheral samples were collected for the analysis of complement CH50 at Baseline (Day 1 of Cycle 1) and after completion of Cycle 4 (Day 85).

Posted

Mean

Standard Deviation

Kilounit /Liter

Baseline, Cycle 1-Day 1, and Cycle 4-Day 85

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Secondary

Maximum Serum Concentration (Cmax), and Minimum Serum Concentration (Cmin) for Chlorambucil

Blood samples for pharmacokinetic (PK) analysis of chlorambucil were collected on Day 1 and Day 4 in Cycle 1, and on Day 1 in Cycle 3. In each sampling, blood samples (2 milliliter [mL]/sample) were collected at pre-dose, and 15 minute (min), 30 min, 1 hour (hr), 1.5 hr, 2 hr, 3 hr, 4 hr, 6 hr, 8 hr, and 10 hr post dosing. Maximum serum concentration (Cmax), minimum serum concentration (Cmin) were determined. Between participants coefficient of variation (%CVb) was calculated according to the following methods: Transformed Data : 100 * (square root of the exponential [standard deviation of loge-transformed ]2-1).

PK Population: all participants who received at least one dose of investigational product and for whom PK data was collected. Only those participants with non-missing values available at the specified time points were analyzed (represented by n=X in the category titles).

Posted

Geometric Mean

95% Confidence Interval

Nanograms per milliliter

Cycle 1-Day 1, Cycle 1-Day 4, and Cycle 3-Day 1

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Secondary

Area Under the Serum Concentration-time (AUC) for Chlorambucil

Blood samples for PK analysis of chlorambucil were collected on Day 1 and Day 4 in Cycle 1, and on Day 57 in Cycle 3. In each sampling, blood samples (2 mL/sample) were collected at pre-dose, and 15 min, 30 min, 1 hr, 1.5 hr, 2 hr, 3 hr, 4 hr, 6 hr, 8 hr, and 10 hr post dosing. AUC from time zero up to a definite time t (AUC[0-t]), AUC from time zero up to infinity (AUC[0-inf]), AUC from time zero up to 6 hours post dose (AUC[0-6]), AUC from time zero up to 24 hours post dose (AUC[0-24]) were determined. Between participants coefficient of variation (%CVb) was calculated according to the following methods: Transformed Data : 100 * (square root of the exponential [standard deviation of loge-transformed ]2-1).

PK Population. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles). Different participants may have been analyzed at different time points, so the overall number of participants analyzed reflects everyone in the PK Population.

Posted

Geometric Mean

95% Confidence Interval

Hour*nanogram/ milliliter/milligram

Cycle 1-Day 1, Cycle 1-Day 4, and Cycle 3-Day 57

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Secondary

Elimination Half-life (t1/2) for Chlorambucil

Blood samples for pharmacokinetic (PK) analysis of chlorambucil were collected on Day 1 and Day 4 in Cycle 1, and on Day 57 in Cycle 3. In each sampling, blood samples (2 mL/sample) were collected at pre-dose, and 15 min, 30 min, 1 hr, 1.5 hr, 2 hr, 3 hr, 4 hr, 6 hr, 8 hr, and 10 hr post dosing. Elimination half-life (t1/2) was determined. Between participants coefficient of variation (%CVb) was calculated according to the following methods: Transformed Data : 100 * (square root of the exponential [standard deviation of loge-transformed ]2-1).

Posted

Geometric Mean

95% Confidence Interval

Hour

Cycle 1-Day 1, Cycle 1-Day 4, and Cycle 3-Day 57

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Secondary

Time of Maximum Serum Concentration (Tmax) for Chlorambucil

Blood samples for pharmacokinetic (PK) analysis of chlorambucil were collected on Day 1 and Day 4 in Cycle 1, and on Day 57 in Cycle 3. In each sampling, blood samples (2 mL/sample) were collected at pre-dose, and 15 min, 30 min, 1 hr, 1.5 hr, 2 hr, 3 hr, 4 hr, 6 hr, 8 hr, and 10 hr post dosing. Time of maximum serum concentration (tmax) was determined. Between participants coefficient of variation (%CVb) was calculated according to the following methods: Transformed Data : 100 * (square root of the exponential [standard deviation of loge-transformed ]2-1).

Posted

Median

Full Range

Hour

Cycle 1-Day 1, Cycle 1-Day 4, and Cycle 3-Day 57

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Secondary

Maximum Serum Concentration (Cmax), and Minimum Serum Concentration (Cmin) for Phenyl Acetic Acid Mustard

Blood samples for pharmacokinetic (PK) analysis of chlorambucil and its metabolite phenyl acetic acid mustard were collected on Day 1 and Day 4 in Cycle 1, and on Day 1 in Cycle 3. In each sampling, blood samples (2 milliliter [mL]/sample) were collected at pre-dose, and 15 minute (min), 30 min, 1 hour (hr), 1.5 hr, 2 hr, 3 hr, 4 hr, 6 hr, 8 hr, and 10 hr post dosing. Maximum serum concentration (Cmax), minimum serum concentration (Cmin) were determined. Between participants coefficient of variation (%CVb) was calculated according to the following methods: Transformed Data : 100 * (square root of the exponential [standard deviation of loge-transformed ]2-1).

Posted

Geometric Mean

95% Confidence Interval

Nanograms per milliliter

Cycle 1-Day 1, Cycle 1-Day 4, and Cycle 3-Day 1

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Secondary

Area Under the Serum Concentration-time (AUC) for Phenyl Acetic Acid Mustard

Blood samples for PK analysis of chlorambucil and its metabolite phenyl acetic acid mustard were collected on Day 1 and Day 4 in Cycle 1, and on Day 57 in Cycle 3. In each sampling, blood samples (2 mL/sample) were collected at pre-dose, and 15 min, 30 min, 1 hr, 1.5 hr, 2 hr, 3 hr, 4 hr, 6 hr, 8 hr, and 10 hr post dosing. AUC from time zero up to a definite time t (AUC[0-t]), AUC from time zero up to infinity (AUC[0-inf]), AUC from time zero up to 6 hours post dose (AUC[0-6]), AUC from time zero up to 24 hours post dose (AUC[0-24]) were determined. Between participants coefficient of variation (%CVb) was calculated according to the following methods: Transformed Data : 100 * (square root of the exponential [standard deviation of loge-transformed ]2-1).

Posted

Geometric Mean

95% Confidence Interval

Hour*nanogram/ milliliter/milligram

Cycle 1-Day 1, Cycle 1-Day 4, and Cycle 3-Day 57

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Secondary

Elimination Half-life (t1/2) for Phenyl Acetic Acid Mustard

Blood samples for pharmacokinetic (PK) analysis of chlorambucil and its metabolite phenyl acetic acid mustard were collected on Day 1 and Day 4 in Cycle 1, and on Day 57 in Cycle 3. In each sampling, blood samples (2 mL/sample) were collected at pre-dose, and 15 min, 30 min, 1 hr, 1.5 hr, 2 hr, 3 hr, 4 hr, 6 hr, 8 hr, and 10 hr post dosing. Elimination half-life (t1/2) was determined. Between participants coefficient of variation (%CVb) was calculated according to the following methods: Transformed Data : 100 * (square root of the exponential [standard deviation of loge-transformed ]2-1).

Posted

Geometric Mean

95% Confidence Interval

Hour

Cycle 1-Day 1, Cycle 1-Day 4, and Cycle 3-Day 57

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Secondary

Time of Maximum Serum Concentration (Tmax) for Phenyl Acetic Acid Mustard

Blood samples for pharmacokinetic (PK) analysis of chlorambucil and its metabolite phenyl acetic acid mustard were collected on Day 1 and Day 4 in Cycle 1, and on Day 57 in Cycle 3. In each sampling, blood samples (2 mL/sample) were collected at pre-dose, and 15 min, 30 min, 1 hr, 1.5 hr, 2 hr, 3 hr, 4 hr, 6 hr, 8 hr, and 10 hr post dosing. Time of maximum serum concentration (tmax) was determined. Between participants coefficient of variation (%CVb) was calculated according to the following methods: Transformed Data : 100 * (square root of the exponential [standard deviation of loge-transformed ]2-1).

Posted

Median

Full Range

Hour

Cycle 1-Day 1, Cycle 1-Day 4, and Cycle 3-Day 57

ID	Title	Description
OG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued

Arm/Groups

ID	Title	Description	Deaths (Affected)	Deaths (At Risk)	Serious Events (Affected)	Serious Events (At Risk)	Other Events (Affected)	Other Events (At Risk)
EG000	Chlorambucil 10 mg/m^2	Participants with previously untreated chronic lymphocytic leukemia (CLL) received chlorambucil 10 milligram (mg)/meter squared (m^2) orally on Days 1-7 of every 28-day cycle for a minimum of 3 cycles until best response or a maximum of 12 cycles. After completion of the Treatment Phase (for participants in CR, PR or SD), survival and disease status assessment visits were performed 28 days after the first day of the last treatment cycle (Follow-up [FU] 1), 84 days, and 168 days after the day of FU 1 (FU 85 and FU 169, respectively). For participants experiencing disease progression during the Treatment Phase, the post progressive disease (PD) follow-up for safety assessments were performed 28 days after the first day of the last treatment cycle (PDFU 1). Subsequent follow-up was performed 84 and 168 days after the day of PDFU 1 (PDFU 85 and PDFU 169, respectively) to assess survival status, date of next CLL therapy, and type of therapy. In subsequent visits, the participant continued			1	5	5	5

Other Adverse Events

Term	Organ System	Source Vocabulary	Assessment Type	Statistical Information
Thrombocytopenia	Blood and lymphatic system disorders	MedDRA	Systematic Assessment	EG0005 affected5 at risk
Neutropenia	Blood and lymphatic system disorders	MedDRA	Systematic Assessment	EG0004 affected5 at risk
Anaemia	Blood and lymphatic system disorders	MedDRA	Systematic Assessment	EG0002 affected5 at risk
White blood cell count decreased	Investigations	MedDRA	Systematic Assessment	EG0004 affected5 at risk
Aspartate aminotransferase increased	Investigations	MedDRA	Systematic Assessment	EG0002 affected5 at risk
Blood lactate dehydrogenase increased	Investigations	MedDRA	Systematic Assessment	EG0002 affected5 at risk
Lymphocyte count decreased	Investigations	MedDRA	Systematic Assessment	EG0002 affected5 at risk
Alanine aminotransferase increased	Investigations	MedDRA	Systematic Assessment	EG0001 affected5 at risk
Blood alkaline phosphatase increased	Investigations	MedDRA	Systematic Assessment	EG0001 affected5 at risk
Haemoglobin decreased	Investigations	MedDRA	Systematic Assessment	EG0001 affected5 at risk
Neutrophil count decreased	Investigations	MedDRA	Systematic Assessment	EG0001 affected5 at risk
Nausea	Gastrointestinal disorders	MedDRA	Systematic Assessment	EG0002 affected5 at risk
Abdominal discomfort	Gastrointestinal disorders	MedDRA	Systematic Assessment	EG0001 affected5 at risk
Abdominal pain upper	Gastrointestinal disorders	MedDRA	Systematic Assessment	EG0001 affected5 at risk
Gastritis	Gastrointestinal disorders	MedDRA	Systematic Assessment	EG0001 affected5 at risk
Pruritus	Skin and subcutaneous tissue disorders	MedDRA	Systematic Assessment	EG0002 affected5 at risk
Rash maculo-papular	Skin and subcutaneous tissue disorders	MedDRA	Systematic Assessment	EG0001 affected5 at risk
Fatigue	General disorders	MedDRA	Systematic Assessment	EG0001 affected5 at risk
Malaise	General disorders	MedDRA	Systematic Assessment	EG0001 affected5 at risk
Nasopharyngitis	Infections and infestations	MedDRA	Systematic Assessment	EG0001 affected5 at risk
Pharyngitis	Infections and infestations	MedDRA	Systematic Assessment	EG0001 affected5 at risk
Hypersensitivity	Immune system disorders	MedDRA	Systematic Assessment	EG0001 affected5 at risk
Back pain	Musculoskeletal and connective tissue disorders	MedDRA	Systematic Assessment	EG0001 affected5 at risk
Rhinorrhoea	Respiratory, thoracic and mediastinal disorders	MedDRA	Systematic Assessment	EG0001 affected5 at risk

ID	Term
D009370	Neoplasms by Histologic Type
D009369	Neoplasms
D006402	Hematologic Diseases
D006425	Hemic and Lymphatic Diseases

ID	Term
D009588	Nitrogen Mustard Compounds
D009150	Mustard Compounds
D006846	Hydrocarbons, Halogenated
D006838	Hydrocarbons
D009930	Organic Chemicals
D004304	Dosage Forms
D004364	Pharmaceutical Preparations