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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02801578
Other study ID # 2016-0226
Secondary ID NCI-2016-01091
Status Completed
Phase Phase 2/Phase 3
First received
Last updated
Start date July 6, 2016
Est. completion date January 28, 2019

Study information

Verified date February 2020
Source M.D. Anderson Cancer Center
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Ibrutinib is currently FDA approved and commercially available for the treatment of CLL. However, some researchers think the approved dose may be unnecessarily high.

The goal of this clinical research study is to compare 3 different daily doses of ibrutinib to learn how these doses affect the disease and your body. Researchers think that if a lower dose of ibrutinib can be found to be as effective as the currently approved dose this may help to lower the risk of side effects.


Description:

Study Drug Administration:

Each study cycle is 28 days.

If you are found to be eligible to take part in this study, you will take ibrutinib capsules by mouth every day for 3 cycles. Each dose of ibrutinib should be taken at about the same time, either with or without food.

During Cycle 1, you will receive the highest dose of ibrutinib (the dose that is currently FDA approved). You will take 3 capsules each day during Cycle 1. During Cycle 2, you will receive the second-highest dose and you will take 2 capsules each day. During Cycle 3, you will take the lowest dose of ibrutinib and you will take 1 capsule each day.

You must swallow the ibrutinib capsules whole without opening, breaking, or chewing them.

You will be given a study drug diary to keep track of each dose of ibrutinib taken, including the time the dose was taken, any missed or vomited doses and the reason for missing the dose, and any doses that you vomited.

Study Visits:

On Days 1, 8 and 28 of each cycle blood (about 1-2 tablespoons total) will be drawn before your dose of ibrutinib and then at 4 and 24 hours after your dose for pharmacodynamic (PD) and pharmacokinetic (PK) testing, to help researchers understand how ibrutinib works in the body, and to learn if the dose you are taking is as effective as other doses (Exception: there will be no 4-hour blood draw on day 28). PK testing measures the amount of study drug in the body at different time points. PD testing measures how the level of study drug in your body may affect the disease. You will need to return to the clinic on the following day (Days 2, 9 and 29 of each cycle [Day 1 of the next cycle]) for the last blood draw.

On Day 28 of each cycle:

- You will have a physical exam

- Blood (about 1-2 tablespoons) will be drawn for routine tests.

- You will have an EKG.

Length of Study:

You may receive ibrutinib on this study for up to 3 cycles. After this time, you will continue treatment for CLL as directed by your doctor. This may or may not include ibrutinib. If you do continue to take ibrutinib after the study is over, your doctor will determine the best dose for you to be taking.

You will no longer be able to take the study drug if the disease gets worse, if intolerable side effects occur, or if you are unable to follow study directions.

Your participation in this study will be over after your last dose of ibrutinib (after the end of Cycle 3).

This is an investigational study. Ibrutinib is FDA approved and commercially available for the treatment of CLL. It is considered investigational to compare 3 different doses of ibrutinib. The study doctor can explain how the study drug is designed to work.

Up to 12 participants will be enrolled in this study. All will take part at MD Anderson.


Recruitment information / eligibility

Status Completed
Enrollment 11
Est. completion date January 28, 2019
Est. primary completion date January 28, 2019
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria:

1. Patients with a diagnosis of CLL (any stage) with ALC >/= 20 x 109/l, requiring therapy.

2. Able to receive ibrutinib through commercial supply, i.e., insured patients meeting FDA-approved indications.

3. Age >/=18 years.

4. Eastern Cooperative Oncology Group (ECOG) performance status of 0-2.

5. Adequate end organ function, defined as the following: total bilirubin </= 1.5 x upper limit of normal (ULN, unless due to Gilbert syndrome, in which case it should be </= 3.0 x ULN), ALT and AST </= 2.5 x ULN, CrCL >/= 25 ml/min.

6. Able to understand and sign the IRB-approved informed consent document for this trial.

7. Women of childbearing potential (WOCBP) must practice 2 effective methods of birth control during the course of the study. Male patients who are partners of WOCBP should also practice an effective method of contraception. Effective methods of birth control include diaphragm or condoms with spermicidal foam or jelly, birth control pills (BCPs), injections or patches, intra-uterine devices (IUDs) and surgical sterilization. Postmenopausal women must be amenorrheic for >/= 12 months to be considered of non-childbearing potential, Women and men must continue birth control for the duration of the trial and >/= 3 months after the last dose of study drug, All WOCBP MUST have a negative pregnancy test prior to beginning ibrutinib on study.

8. Patients should have discontinued any and all other therapy for CLL >/= 48 hours prior to start of study therapy and recovered from any toxicity due to these therapies to grade </= 1.

Exclusion Criteria:

1. Previous treatment with ibrutinib.

2. Current therapy with warfarin or other anticoagulants at therapeutic doses, e.g., low molecular weight heparin, fondaparinux, dabigatran, rivaroxaban, apixaban or edoxaban that are unable to be discontinued.

3. Active gastrointestinal conditions that are expected to impair absorption of orally administered medications.

4. Active, uncontrolled infection.

5. History of hypersensitivity to ibrutinib.

6. Pregnancy or lactation.

7. Patients with leukemic involvement of the central nervous system.

8. Patients who currently have or have a history of the following within 6 months preceding study entry are not eligible: Unstable angina (UA) or myocardial infarction (MI), Clinically significant atrial or ventricular arrhythmias (e.g., AF, atrial flutter, ventricular tachycardia, ventricular fibrillation, or torsades de pointes), New York Heart Association (NYHA) class III or IV heart failure.

9. Patients on strong CYP3A inducers or inhibitors that are unable to be discontinued. The list of drugs that interact with cytochrome P450 enzymes can be found online at: http://medicine.iupui.edu/clinpharm/DDIs/ClinicalTable.aspx

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Ibrutinib
Cycle 1 daily dose of ibrutinib is 420 mg (3 capsules), in the second cycle 280 mg (2 capsules), and in the third cycle 140 mg (1 capsule).

Locations

Country Name City State
United States University of Texas MD Anderson Cancer Center Houston Texas

Sponsors (1)

Lead Sponsor Collaborator
M.D. Anderson Cancer Center

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Participants With >/= 95 % Bruton's Tyrosine Kinase (BTK) Occupancy BTK occupancy level measured by fluorescent affinity probe just before dosing and at 4 and 24 hours post-dosing on days 1, 8, and 28 (but before the first dose of the next cycle) of each cycle. 3 cycles, up to 90 days
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