Phase 1b Safety and Efficacy Study of TRU-016

Chronic Lymphocytic Leukemia Clinical Trial

Official title:

Phase 1b, Open Label Study to Evaluate Safety and Efficacy of TRU-016 in Combination With Rituximab, Obinutuzumab, Rituximab and Idelalisib, or Ibrutinib in Chronic Lymphocytic Leukemia and With Bendamustine in Peripheral T-cell Lymphoma

Clinical Trial Details — Status: Terminated

Administrative data

• NCT number: NCT01644253
• Other study ID #: 16009
• Status: Terminated
• Phase: Phase 1
• Start date: September 2012
• Est. completion date: April 21, 2021

Study information

• Verified date: May 2021
• Source: Aptevo Therapeutics
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The purpose of this study is to evaluate the efficacy and safety of TRU-016 in combination with rituximab, in combination with obinutuzumab, in combination with rituximab and idelalisib, or in combination with ibrutinib in patients with CLL; and in combination with bendamustine in patients with PTCL.

Description:

The study will consist of 8 dose cohorts:

1. Previously untreated patients 20 mg/kg TRU-016 + rituximab.

2. Relapsed patients, 20 mg/kg TRU-016 + rituximab.

3. Previously untreated patients 10 mg/kg TRU-016 + rituximab.

4. Previously untreated patients TRU-016 + obinutuzumab.

5. Relapsed patients, 20 mg/kg TRU-016 + rituximab + idelalisib.

6. Patients with CLL on ibrutinib or another BTK inhibitor for a total of more than 1 year who have not had a complete response (CR) will continue receiving ibrutinib or another BTK inhibitor.

7. Patients with CLL on ibrutinib or another BTK inhibitor with stable disease and in whom the cysteine 481 mutant clone is present at a level >1%, will continue receiving ibrutinib or the alternative BTK inhibitor.

8. Patients with relapsed or refractory PTCL will receive TRU-016 dosed 10 mg/kg for the first dose and then 20 mg/kg weekly for 2 cycles, followed by dosing every other week for an additional 4 cycles (cycle = 28 days) + bendamustine for 2 days every cycle for 6 cycles.

Recruitment information / eligibility

• Status: Terminated
• Enrollment: 87
• Est. completion date: April 21, 2021
• Est. primary completion date: February 24, 2020
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Diagnosis of CLL by 2008 IWCLL criteria and with Rai stage intermediate or high risk CLL. Cohort 8 patients must have a diagnosis of PTCL.

• No prior therapy for CLL for Cohorts 1, 3 and 4. For Cohort 2, 1-3 prior treatments. For Cohort 5, patients must have failed to respond or relapsed after 1 or more treatment regimens. For Cohort 6, patients who have been receiving ibrutinib for at least 12 months, have not had a CR, and in whom no cysteine 481 mutation is detected. For Cohort 7, patients who are receiving ibrutinib with stable disease and now have the cysteine 481 mutant clone present at levels of >1%. For Cohort 8, have refractory or relapsed PTCL after one or more prior therapies.

• At least one of the following criteria for active disease requiring treatment:

progressive splenomegaly and/or lymphadenopathy; anemia or thrombocytopenia due to bone marrow involvement; or progressive lymphocytosis with an increase of >50% over a 2-month period or an unanticipated doubling time of less than 6 months

• For Cohorts 1, 3 and 4, contraindication to chemotherapy as first-line therapy due to patient age, comorbidity or patient preference

• Age >/= to 18 years

• ECOG performance status of </= 2

• Life expectancy > 6 months in opinion of Investigator

• Serum creatinine, total bilirubin, ALT/SGPT </= 2.0 x upper limit of normal

• ANC >/= 800/mm3, Cohort 8 (PTCL): ANC >/= 1000/mm3

• Platelets >/= 30,000/mm3

Exclusion Criteria:

• For Cohorts 1, 3 and 4 only: Has received treatment with rituximab, alemtuzumab, ofatumumab or any other chemotherapeutic agent for CLL. Cohort 8: Received prior treatment with bendamustine and did not respond during treatment or relapsed less than sex months after completing treatment.

• Has received an investigational therapy within 30 days of first dose of study drug

• Previous or concurrent additional malignancy

• Clinically significant pulmonary dysfunction, active infection, prior allogeneic bone marrow transplant, active autoimmune disease

• Positive serology for HIV or hepatitis C

• Hepatitis B surface antigen or hepatitis B core antibody positive

• Pregnant or breastfeeding

• Known current drug or alcohol abuse

Related Conditions & MeSH terms

• Chronic Lymphocytic Leukemia
• Leukemia
• Leukemia, Lymphocytic, Chronic, B-Cell
• Leukemia, Lymphoid
• Lymphoma
• Lymphoma, T-Cell
• Lymphoma, T-Cell, Peripheral
• Peripheral T-cell Lymphoma

Intervention

Biological:
• 20 mg/kg TRU-016 + Rituximab
TRU-016: 10 mg/kg for first dose, all subsequent doses 20 mg/kg, IV once weekly for 8 weeks followed by 4 monthly doses Rituximab: 375 mg/m2 for first dose, all subsequent doses 500 mg/m2, IV once weekly for 8 weeks followed by 4 monthly doses
• 10 mg/kg TRU-016 + Rituximab
TRU-016: 6 mg/kg for first dose, all subsequent doses 10 mg/kg, IV on Day 1, 8 and 15, followed by 5 monthly doses Rituximab: 375 mg/m2 for first dose, all subsequent doses 500 mg/m2, IV following TRU-016 schedule
• TRU-016 20 mg/kg + Obinutuzumab
TRU-016: 6 mg/kg on Day 1, 20 mg/kg on Day 8 and 15, then 20 mg/kg once a month for 5 months Obinutuzumab: 100 mg on Day 1, 900 mg on Day 2, 1,000 mg on Day 8 and 15, then 1,000 mg once a month for 5 months
• TRU-016 6-20 mg/kg + idelalisib + rituximab
TRU-016: 6 mg/kg on Days 15-36 weekly, 10 mg/kg on Days 43 and 50, then 20 mg/kg once a month for 5 months.
• TRU-016 10-20 mg/kg + ibrutinib
TRU-016: Dosed weekly for 8 weeks followed by 4 monthly intravenous (IV) infusions. The first dose will be 10 mg/kg and all subsequent doses will be 20 mg/kg.
• TRU-016 10-20 mg/kg + bendamustine
TRU-016 dosed 10 mg/kg for the first dose and then 20 mg/kg weekly for 2 cycles, followed by dosing every other week for an additional 4 cycles (cycle = 28 days). Bendamustine (90 mg/m2 on days 2 and 3 of cycle 1 and then days 1 and 2 of cycles 2 to 6) will be infused after completion of TRU-016. If a patient is benefiting with stable disease or better, then TRU-016 may continue to be dosed every 3 weeks after the first 6 cycles; bendamustine will not be dosed beyond 6 cycles.

Locations

Country	Name	City	State
United States	Greenville Health System	Greenville	South Carolina
United States	Eastern Regional Medical Center	Philadelphia	Pennsylvania
United States	University of Pittsburgh	Pittsburgh	Pennsylvania
United States	Fred Hutchinson Cancer Research Center	Seattle	Washington
United States	Swedish Cancer Institute,1221 Madison St.	Seattle	Washington

Sponsors (1)

Lead Sponsor	Collaborator
Aptevo Therapeutics

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Incidence and severity of adverse events		any time point during the study up to 18 months
Primary	CLL Cysteine 481 mutation status	The primary endpoint for Cohort 7 is the elimination of the cysteine 481 mutant clone (<1%).	CLL patients in Cohort 7 will be followed for 9 months unless no cysteine 481 mutation is detected.
Secondary	Overall Response Rate (ORR)		any time point during the study up to 18 months
Secondary	Progression-free survival (PFS)		any time point during the study up to 18 months
Secondary	Overall survival (OS)		any time point during the study up to 18 months
Secondary	Duration of response (DOR)		any time point during the study up to 18 months
Secondary	Resolution of disease-related symptoms	Resolution of disease-related symptoms which are common to the disease include fever, weight loss, night sweats, fatigue, loss of appetite pain, and pruritus; symptoms will be assessed by descriptive statistics and data listings.	any time point during the study up to 18 months
Secondary	Maximum serum drug concentration (Cmax)		any time point during the study up to 12 months
Secondary	Minimum serum drug concentration (Cmin)		any time point during the study up to 12 months
Secondary	Area under the concentration-time curve (AUC0-t and AUC0-8)		any time point during the study up to 12 months
Secondary	Systemic clearance (CL)		any time point during the study up to 12 months
Secondary	Volume of distribution (Vd)		any time point during the study up to 12 months
Secondary	Elimination half-life (t1/2)		any time point during the study up to 12 months