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An Open-label, Phase 2 Study of ACP-196 in Subjects With Waldenström Macroglobulinemia

Acerta Pharma logo

Acerta Pharma

Status and phase

Active, not recruiting
Phase 2

Conditions

Waldenström Macroglobulinemia (WM)

Treatments

Drug: Acalabrutinib (ACP-196)

Study type

Interventional

Funder types

Industry

Identifiers

NCT02180724
2014-003212-36 (EudraCT Number)
ACE-WM-001

Details and patient eligibility

About

The purpose of this study is to evaluate the safety, pharmacokinetics, pharmacodynamics, and activity of acalabrutinib in treating subjects with WM.

Full description

Clinical studies have shown that targeting the B-cell receptor (BCR) signaling pathway by inhibiting Bruton tyrosine kinase (BTK) produces significant clinical benefit in patients with non-Hodgkin lymphoma, including Waldenström macroglobulinemia (WM). Ibrutinib (IMBRUVICA®), an oral, small-molecule BTK inhibitor has been approved for the treatment for chronic lymphocytic leukemia (CLL), mantle cell lymphoma, and WM.

Acerta Pharma BV (AcertaPharma) has developed a novel BTK inhibitor, acalabrutinib, that achieves significant oral bioavailability and potency in preclinical models.

The purpose of this study is to evaluate the safety, pharmacokinetics, pharmacodynamics, and activity of acalabrutinib in treating subjects with WM.

Enrollment

107 patients

Sex

All

Ages

18 to 130 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  1. Men and women ≥18 years of age.

  2. Previously treated cohort only: A confirmed diagnosis of WM, which has relapsed after, or been refractory to ≥1prior therapy for WM and which requires treatment.

  3. Previously untreated cohort only: A confirmed diagnosis of previously untreated WM in subjects who require treatment and do not want to receive chemoimmunotherapy or have comorbidities that would preclude chemoimmunotherapy such as:

    • Symptomatic hyperviscosity with an IgM ≥5,000mg/dL
    • Disease-related neuropathy
  4. Serum concentration of IgM, as measured by SPEP and IFE, that exceeds the upper limits of normal or measurable nodal WM (defined as the presence of ≥1lymph node that measures ≥2.0 cm in the longest diameter and ≥1.0cm in the longest perpendicular diameter).

  5. ECOG performance status of ≤2.

  6. Women who are sexually active and can bear children must agree to use highly effective forms of contraception during the study and for 2 days after the last dose of acalabrutinib.

  7. Willing and able to participate in all required evaluations and procedures in this study protocol including swallowing capsules without difficulty.

  8. Ability to understand the purpose and risks of the study and provide signed and dated informed consent and authorization to use protected health information (in accordance with national and local patient privacy regulations).

Exclusion criteria

  1. Prior malignancy, except for adequately treated basal cell or squamous cell skin cancer, in situ cervical cancer, or other cancer from which the subject has been disease free for ≥2 years or which will not limit survival to <2 years. Note: These cases must be discussed with the medical monitor.
  2. A life-threatening illness, medical condition, or organ system dysfunction which, in the investigator's opinion, could compromise the subject's safety, interfere with the absorption or metabolism of acalabrutinib, or put the study outcomes at undue risk.
  3. Significant cardiovascular disease such as uncontrolled or symptomatic arrhythmias, congestive heart failure, or myocardial infarction within 6 months of screening, or any Class 3 or 4 cardiac disease as defined by the New York Heart Association Functional Classification, or QTc >480 msec.
  4. Malabsorption syndrome, disease significantly affecting gastrointestinal function, or resection of the stomach or small bowel or gastric bypass, symptomatic inflammatory bowel disease, or partial or complete bowel obstruction.
  5. Any immunotherapy within 4 weeks of first dose of study drug.
  6. For subjects with recent chemotherapy or experimental therapy, the first dose of study drug must occur after 5 times the half-life of the agent(s).
  7. Prior exposure to a BCR inhibitor (e.g., BTK,PI3K, or SYK inhibitors) or BCL-2 inhibitors (e.g., ABT-199).
  8. Ongoing immunosuppressive therapy, including systemic or enteric corticosteroids for treatment of WM or other conditions. Note: Subjects may use topical or inhaled corticosteroids or low-dose steroids (≤10 mg of prednisone or equivalent per day) as therapy for comorbid conditions. During study participation, subjects may also receive systemic or enteric corticosteroids as needed for treatment-emergent comorbid conditions.
  9. Grade ≥2 toxicity (other than alopecia) continuing from prior anticancer therapy including radiation.
  10. Known history of HIV or active infection with HCV or hepatitis B virus (HBV) or any uncontrolled active systemic infection.
  11. Major surgery within 4 weeks before first dose of study drug.
  12. Uncontrolled autoimmune hemolytic anemia or idiopathic thrombocytopenia purpura.
  13. History of a bleeding diathesis (e.g., hemophilia, von Willebrand disease).
  14. History of stroke or intracranial hemorrhage within 6 months before the first dose of acalabrutinib.
  15. Requires or receiving anticoagulation with warfarin or equivalent vitamin K antagonists (e.g., phenprocoumon) within 28 days of first dose of study drug.
  16. Requires treatment with proton-pump inhibitors (e.g., omeprazole, esomeprazole, lansoprazole, dexlansoprazole, rabeprazole, or pantoprazole).
  17. ANC <0.75 x 109/L or platelet count <50 x 109/L. For subjects with disease involvement in the bone marrow, ANC <0.50 x 109/L or platelet count <30x109/L.
  18. Creatinine >2.5 x institutional ULN; total bilirubin >2.5 x ULN; or AST or ALT >3.0 x ULN.
  19. Lactating or pregnant.
  20. Concurrent participation in another therapeutic clinical trial.

Trial design

Primary purpose

Treatment

Allocation

Non-Randomized

Interventional model

Single Group Assignment

Masking

None (Open label)

107 participants in 2 patient groups

Previously Treated
Experimental group
Description:
Subjects previously treated with Waldenström Macroglobulinemia N=92
Treatment:
Drug: Acalabrutinib (ACP-196)
Drug: Acalabrutinib (ACP-196)
Treatment Naïve
Experimental group
Description:
Subjects with treatment-naïve Waldenström Macroglobulinemia. N=14
Treatment:
Drug: Acalabrutinib (ACP-196)
Drug: Acalabrutinib (ACP-196)

Trial documents
2

Trial contacts and locations

38

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Data sourced from clinicaltrials.gov

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