Trial Outcomes & Findings for Phase 2 Study of the Combination of Bruton's Tyrosine Kinase Inhibitor PCI-32765 and Rituximab in High-Risk Chronic Lymphocytic Leukemia and Small Lymphocytic Lymphoma Patients (NCT NCT01520519)

NCT ID: NCT01520519

Last Updated: 2019-09-18

Results Overview

Progression free survival defined as the time interval from treatment to progressive disease or death, whichever happens earlier. Participants in complete remission (CR), partial remission (PR) or stable disease (SD) are all counted as progression-free. Survival or times to progression functions estimated using the Kaplan-Meier method.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

40 participants

Primary outcome timeframe

up to 50 months

Results posted on

2019-09-18

Participant Flow

Recruitment Details: February 2012 - September 2012

Participant milestones

Participant milestones
Measure
Rituximab + PCI-32765
Rituximab (375 mg/m2) given intravenously (IV) on Day 1, Day 8, Day 15, and Day 22, then continued once every 4 weeks only on Days 1 during cycles 2 - 6. PCI-32765 started on Day 2 of cycle 1 at a dose of 420 mg (3 \* 140-mg capsules) orally daily and will be continued daily. Rituximab: 375 mg/m2 intravenously on Day 1, Day 8, Day 15, and Day 22, then continued once every 4 weeks only on Days 1 during cycles 2 - 6. PCI-32765: 420 mg (3 \* 140-mg capsules) orally started on Day 2 of cycle 1 once daily and will be continued daily.
Overall Study
STARTED
40
Overall Study
COMPLETED
40
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Phase 2 Study of the Combination of Bruton's Tyrosine Kinase Inhibitor PCI-32765 and Rituximab in High-Risk Chronic Lymphocytic Leukemia and Small Lymphocytic Lymphoma Patients

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Rituximab + PCI-32765
n=40 Participants
Rituximab (375 mg/m2) given intravenously (IV) on Day 1, Day 8, Day 15, and Day 22, then continued once every 4 weeks only on Days 1 during cycles 2 - 6. PCI-32765 started on Day 2 of cycle 1 at a dose of 420 mg (3 \* 140-mg capsules) orally daily and will be continued daily. Rituximab: 375 mg/m2 intravenously on Day 1, Day 8, Day 15, and Day 22, then continued once every 4 weeks only on Days 1 during cycles 2 - 6. PCI-32765: 420 mg (3 \* 140-mg capsules) orally started on Day 2 of cycle 1 once daily and will be continued daily.
Age, Categorical
<=18 years
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
26 Participants
n=5 Participants
Age, Categorical
>=65 years
14 Participants
n=5 Participants
Age, Continuous
65 years
n=5 Participants
Sex: Female, Male
Female
14 Participants
n=5 Participants
Sex: Female, Male
Male
26 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
2 Participants
n=5 Participants
Race (NIH/OMB)
White
37 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
Region of Enrollment
United States
40 participants
n=5 Participants

PRIMARY outcome

Timeframe: up to 50 months

Population: 1 participant was not evaluable for response

Progression free survival defined as the time interval from treatment to progressive disease or death, whichever happens earlier. Participants in complete remission (CR), partial remission (PR) or stable disease (SD) are all counted as progression-free. Survival or times to progression functions estimated using the Kaplan-Meier method.

Outcome measures

Outcome measures
Measure
Rituximab + PCI-32765
n=39 Participants
Rituximab (375 mg/m2) given intravenously (IV) on Day 1, Day 8, Day 15, and Day 22, then continued once every 4 weeks only on Days 1 during cycles 2 - 6. PCI-32765 started on Day 2 of cycle 1 at a dose of 420 mg (3 \* 140-mg capsules) orally daily and will be continued daily. Rituximab: 375 mg/m2 intravenously on Day 1, Day 8, Day 15, and Day 22, then continued once every 4 weeks only on Days 1 during cycles 2 - 6. PCI-32765: 420 mg (3 \* 140-mg capsules) orally started on Day 2 of cycle 1 once daily and will be continued daily.
Progression Free Survival (PFS)
45 Months
Interval 2.0 to 50.0

PRIMARY outcome

Timeframe: 7 months

Population: 1 participant was not evaluable for response

Over all Response = complete remission (CR) + partial remission (PR). Complete remission (CR), requiring absence of peripheral blood clonal lymphocytes by immunophenotyping, absence of lymphadenopathy, absence of hepatomegaly or splenomegaly, absence of constitutional symptoms and satisfactory blood counts; positive or negative minimal residual disease (MRD); Partial remission (PR), defined as ≥ 50% fall in lymphocyte count, ≥ 50% reduction in lymphadenopathy or ≥ 50% reduction in liver or spleen, together with improvement in peripheral blood counts

Outcome measures

Outcome measures
Measure
Rituximab + PCI-32765
n=39 Participants
Rituximab (375 mg/m2) given intravenously (IV) on Day 1, Day 8, Day 15, and Day 22, then continued once every 4 weeks only on Days 1 during cycles 2 - 6. PCI-32765 started on Day 2 of cycle 1 at a dose of 420 mg (3 \* 140-mg capsules) orally daily and will be continued daily. Rituximab: 375 mg/m2 intravenously on Day 1, Day 8, Day 15, and Day 22, then continued once every 4 weeks only on Days 1 during cycles 2 - 6. PCI-32765: 420 mg (3 \* 140-mg capsules) orally started on Day 2 of cycle 1 once daily and will be continued daily.
Number of Participants With a Response
37 Participants

Adverse Events

Rituximab + PCI-32765

Serious events: 18 serious events
Other events: 40 other events
Deaths: 2 deaths

Serious adverse events

Serious adverse events
Measure
Rituximab + PCI-32765
n=40 participants at risk
Rituximab (375 mg/m2) given intravenously (IV) on Day 1, Day 8, Day 15, and Day 22, then continued once every 4 weeks only on Days 1 during cycles 2 - 6. PCI-32765 started on Day 2 of cycle 1 at a dose of 420 mg (3 \* 140-mg capsules) orally daily and will be continued daily. Rituximab: 375 mg/m2 intravenously on Day 1, Day 8, Day 15, and Day 22, then continued once every 4 weeks only on Days 1 during cycles 2 - 6. PCI-32765: 420 mg (3 \* 140-mg capsules) orally started on Day 2 of cycle 1 once daily and will be continued daily.
General disorders
Abdominal Pain
2.5%
1/40 • Number of events 1 • 7 months
Cardiac disorders
Atrial fibrillation
7.5%
3/40 • Number of events 3 • 7 months
Cardiac disorders
Cardiac disorders - other
2.5%
1/40 • Number of events 1 • 7 months
Respiratory, thoracic and mediastinal disorders
Dyspnea
2.5%
1/40 • Number of events 1 • 7 months
Eye disorders
Eye disorders - other
2.5%
1/40 • Number of events 1 • 7 months
Renal and urinary disorders
Hematuria
2.5%
1/40 • Number of events 1 • 7 months
Nervous system disorders
Intracranial hemorrhage
2.5%
1/40 • Number of events 1 • 7 months
Infections and infestations
Lung Infection
22.5%
9/40 • Number of events 11 • 7 months
Infections and infestations
Mucosal infection
2.5%
1/40 • Number of events 1 • 7 months
Musculoskeletal and connective tissue disorders
Musculoskeletal and connective tissue disorder - other
2.5%
1/40 • Number of events 1 • 7 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Neoplasms benign, malignant and unspecified
2.5%
1/40 • Number of events 1 • 7 months
Nervous system disorders
Peripheral Sensory Neuropathy
2.5%
1/40 • Number of events 1 • 7 months
Renal and urinary disorders
Renal and urinary disorders - other
2.5%
1/40 • Number of events 3 • 7 months
Respiratory, thoracic and mediastinal disorders
Respiratory, thoracic and mediastinal disorders - other
2.5%
1/40 • Number of events 2 • 7 months
Infections and infestations
Sepsis
7.5%
3/40 • Number of events 3 • 7 months
Infections and infestations
Wound Infection
2.5%
1/40 • Number of events 1 • 7 months

Other adverse events

Other adverse events
Measure
Rituximab + PCI-32765
n=40 participants at risk
Rituximab (375 mg/m2) given intravenously (IV) on Day 1, Day 8, Day 15, and Day 22, then continued once every 4 weeks only on Days 1 during cycles 2 - 6. PCI-32765 started on Day 2 of cycle 1 at a dose of 420 mg (3 \* 140-mg capsules) orally daily and will be continued daily. Rituximab: 375 mg/m2 intravenously on Day 1, Day 8, Day 15, and Day 22, then continued once every 4 weeks only on Days 1 during cycles 2 - 6. PCI-32765: 420 mg (3 \* 140-mg capsules) orally started on Day 2 of cycle 1 once daily and will be continued daily.
Infections and infestations
Lung Infection
27.5%
11/40 • Number of events 11 • 7 months
Respiratory, thoracic and mediastinal disorders
Upper respiratory tract infection
35.0%
14/40 • Number of events 14 • 7 months
Gastrointestinal disorders
Diarrhea
25.0%
10/40 • Number of events 10 • 7 months
Blood and lymphatic system disorders
Neutropenia
5.0%
2/40 • Number of events 2 • 7 months
General disorders
Fatigue
17.5%
7/40 • Number of events 7 • 7 months
Gastrointestinal disorders
Nausea/vomiting
37.5%
15/40 • Number of events 15 • 7 months
Musculoskeletal and connective tissue disorders
Arthralgia
27.5%
11/40 • Number of events 11 • 7 months
Blood and lymphatic system disorders
Bleeding event
32.5%
13/40 • Number of events 13 • 7 months
Nervous system disorders
Peripheral Neuropathy
7.5%
3/40 • Number of events 3 • 7 months
Investigations
Weight Gain
10.0%
4/40 • Number of events 4 • 7 months
Eye disorders
Eye disorders
7.5%
3/40 • Number of events 3 • 7 months
Gastrointestinal disorders
Mucositis
7.5%
3/40 • Number of events 3 • 7 months
Skin and subcutaneous tissue disorders
Alopecia
5.0%
2/40 • Number of events 2 • 7 months
Cardiac disorders
Atrial fibrillation
5.0%
2/40 • Number of events 2 • 7 months
Renal and urinary disorders
Urinary tract infection
7.5%
3/40 • Number of events 3 • 7 months
Psychiatric disorders
Insomnia
10.0%
4/40 • Number of events 4 • 7 months
General disorders
Headache
7.5%
3/40 • Number of events 3 • 7 months
Blood and lymphatic system disorders
Anemia
7.5%
3/40 • Number of events 3 • 7 months
Vascular disorders
Hot flashes
5.0%
2/40 • Number of events 2 • 7 months
Gastrointestinal disorders
Constipation
7.5%
3/40 • Number of events 3 • 7 months
Psychiatric disorders
Anxiety
5.0%
2/40 • Number of events 2 • 7 months
Gastrointestinal disorders
Dry Mouth
5.0%
2/40 • Number of events 2 • 7 months

Additional Information

Jan Burger MD./Professor

The University of Texas MD Anderson Cancer Center

Phone: 713-563-1487

Results disclosure agreements

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