Safety Study of the Proteasome Inhibitor PR-171 (Carfilzomib for Injection) in Patients With Hematological Malignancies

This study has been completed.
Information provided by (Responsible Party):
Onyx Pharmaceuticals Identifier:
First received: September 6, 2005
Last updated: January 3, 2014
Last verified: January 2014
The purpose of this study is to test the safety of an investigational new drug called PR-171 at different dose levels on hematological cancers such as Multiple Myeloma, Non-hodgkin's Lymphoma, Hodgkin's Disease, or Waldenstrom's Macroglobulinemia. PR-171 is a proteasome inhibitor, an enzyme responsible for degrading a wide variety of cellular proteins.

Condition Intervention Phase
Waldenstrom's Macroglobulinemia
Drug: PR-171 for injection (carfilzomib)
Drug: Dexamethasone
Phase 1

Study Type: Interventional
Study Design: Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Phase I Study of the Safety and Pharmacokinetics of Escalating Intravenous Doses of the Proteasome Inhibitor PR-171 in Patients With Hematological Malignancies

Resource links provided by NLM:

Further study details as provided by Onyx Pharmaceuticals:

Primary Outcome Measures:
  • To evaluate the safety and tolerability of carfilzomib (PR-171), including determination of its Dose Limiting Toxicity (DTL) and Maximum Tolerated Dose (MTD). [ Time Frame: Up to 12 months. ] [ Designated as safety issue: Yes ]

Secondary Outcome Measures:
  • To determine the pharmacodynamics (PDn) of carfilzomib. [ Time Frame: Up to 12 months ] [ Designated as safety issue: Yes ]

Enrollment: 48
Study Start Date: September 2005
Study Completion Date: September 2010
Primary Completion Date: October 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: PR-171 (carfilzomib) with dexamethasone

Carfilzomib will be administered by intravenous bolus twice weekly for 3 weeks on Days 1, 2, 8, 9, 15, and 16 in a 4-week cycle with a starting dose of 1.2 mg/m2.

PR-171 (carfilzomib) +Dex Expansion Cohort:

Patients will also receive 40 mg oral dexamethasone on Days 1-4 and 15-18 in a 4-week cycle.

Dose Escalation Phase:

Cohorts of 3 patients will receive carfilzomib in a dose-escalating fashion.

PR-171 (carfilzomib) + Dex Expansion Cohort:

Patients will receive carfilzomib at the MTD on Days 1, 2, 8, 9, 15, and 16 and dexamethasone as an oral dose of 40 mg on Days 1-4 and 15-18.

Drug: PR-171 for injection (carfilzomib)
IV push twice weekly for 3 weeks of a 28 day cycle.
Other Name: carfilzomib
Drug: Dexamethasone


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Written informed consent in accordance with federal, local, and institutional guidelines
  2. Males and females ≥18 years of age
  3. Histologically confirmed diagnosis of one of the hematologic malignancies below:

    Waldenström's Macroglobulinemia

  4. Subjects who are refractory or relapsed following at least two prior therapies
  5. Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 2 (See Appendix 6: ECOG Performance Status subjects with ECOG of 3 based solely on bone pain may be included)
  6. Adequate cardiovascular function without symptomatic ischemia, conduction abnormalities uncontrolled by conventional intervention, or myocardial infarction in the previous six months
  7. Adequate hepatic function, with bilirubin <2.0 times the upper limit of normal, and AST and ALT of <3.0 times the upper limit of normal
  8. Total WBC count ≥ 2,000/mm3, ANC ≥ 1000/mm3, hemoglobin ≥8.0 g/dL, and platelet count ≥50,000/mm3

    • Screening ANC should be independent of G-CSF or GM-CSF support for ≥ 1 week and of pegylated G-CSF for ≥ 2 weeks)
    • Subjects receiving supportive care including erythropoietin, darbepoetin and/or bisphosphonates can continue to do so, but must be transfusion independent; subjects receiving erythropoietic support must remain on the same dose for the first 28 days of study participation
  9. An estimated creatinine clearance of ≥ 30 mL/min, calculated using the formula of Cockroft and Gault (140-Age)X Mass (kg)/(72 X creatinine mg/dL) X 0.85 (if female)
  10. Serum creatinine ≤ 2.0 mg/dL
  11. Uric acid, if elevated, must be corrected to within laboratory normal range prior to dosing
  12. Female subjects of child-bearing potential must agree to use dual methods of contraception and have a negative serum pregnancy test. Male subjects must use an effective barrier method of contraception throughout the study and for three months following the last dose if sexually active with a female of child-bearing potential.

Exclusion Criteria:

  1. Female subjects who are pregnant or lactating
  2. Subjects who are transfusion dependent
  3. Subjects with NHL or HL who have received steroid therapy in the previous seven days
  4. Subjects with MM or Waldenström's Macroglobulinemia who have received steroid therapy in the previous three weeks, except for MM subjects in the Carfilzomib + DEX Expansion Cohort, where previous treatment with dexamethasone will be allowed. The dose and schedule of administration of dexamethasone will be adjusted to that used in the protocol
  5. Radiation, chemotherapy, or immunotherapy in the previous four weeks, or subjects who, in the judgment of the Investigator, have not recovered from the effects of previous therapy
  6. For the Dose Escalation period, subjects who have received prior radioimmunotherapy with anti-CD20 monoclonal antibodies such as Bexxar® or Zevalin®; subjects treated with these products will be allowed in the Dose Expansion period
  7. Subjects who have received allogeneic stem cell transplant therapy
  8. Subjects with NHL or HL who have received autologous stem cell transplant therapy and have relapsed within 100 days of therapy
  9. Rituxan therapy within three months before Day 1 unless there is evidence of disease progression
  10. Major surgery within three weeks before Day 1
  11. Congestive heart failure (CHF) (New York Heart Association class III to IV)
  12. Acute active infection requiring systemic antibiotics, antivirals, or antifungals within two weeks prior to first dose
  13. Subjects who are known or suspected of having HIV infection or who are HIV seropositive
  14. Active hepatitis A, B, or C infection; or positive for Hep C RNA or hepBsAG
  15. Non-hematologic malignancy within the past three years except a) adequately treated basal cell or squamous cell skin cancer, b) carcinoma in situ of the cervix, or c) prostate cancer with stable prostate specific antigen (PSA) levels for three years
  16. Subjects with treatment-related myelodysplastic disorder
  17. Subjects with known brain metastasis (active CNS disease only)
  18. Serious psychiatric or medical conditions that could interfere with treatment
  19. Participation in an investigational therapeutic study within one month prior to Day 1
  20. Significant neurotoxicity (Grade 2 or higher with pain) at the time of study initiation
  21. Concurrent therapy with approved or investigative anticancer therapeutics
  22. Subjects with previous hypersensitivity to bortezomib injection
  23. Subjects with contraindications to receiving allopurinol
  24. Subjects in whom the required program of oral and intravenous fluid hydration is contraindicated, e.g., due to pre-existing pulmonary, cardiac, or renal impairment
  25. Subjects with known or suspected amyloidosis
  26. Subjects with pleural effusions requiring thoracentesis or ascites requiring paracentesis
  Contacts and Locations
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Please refer to this study by its identifier: NCT00150462

United States, California
Tower Cancer Research Foundation
Beverly Hills, California, United States, 90211-1850
United States, Florida
H. Lee Moffitt Cancer Center and Research Institute
Tampa, Florida, United States, 33612
United States, New York
Herbert Irving Comprehensive Cancer Center, Columbia University
New York, New York, United States, 10032
Memorial Sloan Kettering Cancer Center
New York, New York, United States, 10021
Weil Medical College of Cornell University
New York, New York, United States, 10021
Sponsors and Collaborators
Onyx Pharmaceuticals
Study Director: Mai Le, MD Onyx Pharmaceuticals
  More Information

No publications provided

Responsible Party: Onyx Pharmaceuticals Identifier: NCT00150462     History of Changes
Other Study ID Numbers: PX-171-002
Study First Received: September 6, 2005
Last Updated: January 3, 2014
Health Authority: United States: Food and Drug Administration

Keywords provided by Onyx Pharmaceuticals:

Additional relevant MeSH terms:
Waldenstrom Macroglobulinemia
Blood Protein Disorders
Cardiovascular Diseases
Hematologic Diseases
Hemorrhagic Disorders
Hemostatic Disorders
Immune System Diseases
Immunoproliferative Disorders
Lymphatic Diseases
Lymphoproliferative Disorders
Neoplasms by Histologic Type
Neoplasms, Plasma Cell
Vascular Diseases
BB 1101
Dexamethasone 21-phosphate
Dexamethasone acetate
Proteasome Inhibitors
Anti-Inflammatory Agents
Antineoplastic Agents
Antineoplastic Agents, Hormonal
Autonomic Agents
Central Nervous System Agents
Enzyme Inhibitors
Gastrointestinal Agents
Hormones processed this record on November 27, 2015