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CompletedLast updated: 9 January 2024

ALLG MM18: This phase II trial is combining the drug Carfilzomib with an immunotherapy agent (Thalidomide) and a steroid (Dexamethasone) in patients with relapsed or refractory Multiple MyelomaSingle Arm, Multicentre Study of Carfilzomib in Combination With Thalidomide and Dexamethasone (CaTD) in Patients With Relapsed and/or Refractory Multiple Myeloma (RRMM)

Clinical summary

Summary

All patients will continue treatment for 18 cycles (12 induction cycles, 6 maintenance cycles) unless development of adverse events that require early cessation of treatment. Patients will be followed up for progression and survival until 1 year following the completion of the last patient's final cycle of induction therapy. Proteasome inhibitors and IMiDs have different but overlapping mechanisms of anti-MM activity. In the clinical setting, both proteasome inhibitors and IMiDs enhance the activity of dexamethasone, and synergy has previously been demonstrated between the first in class proteasome inhibitor, bortezomib[16] and the immunomodulatory drug lenalidomide[17]. Relative to bortezomib, carfilzomib demonstrated increased apoptosis in MM cell lines, and induce high ORR in both bortezomib-naïve and resistant patients. We hypothesise that carfilzomib will induce a synergistic anti-myeloma activity when combined with the first in class immunomodulatory drug thalidomide, and dexamethasone. Thalidomide is a cheaper immunomodulatory drug that is more accessible in the Asia-Pacific region compared to lenalidomide. This makes the combination of carfilzomib, thalidomide and dexamethasone a more viable salvage option for patients in this region. In the PX-171-006 study, combination carfilzomib lenalidomide and dexamethasone induced a CR/VGPR in 59% of patients. The maximum per protocol doses of carfilzomib (27g/m2) was used safely with full dose lenalidomide (25mg po daily days 1-21 every 28 days) and dexamethasone (40 mg po weekly), and the MTD of carfilzomib was not reached. Carfilzomib 56mg/m2 was tolerable in phase II trials and induced durable responses in patients with relapsed and/or refractory myeloma. The most common grade 3/4 side effects of lymphopenia (43%), thrombocytopenia (32%), hypertension (25%), and pneumonia (18%) are not expected to overlap significantly with the expected side effects of thalidomide [15]. We will combine carfilzomib 20/56mg per m2 in combination with thalidomide 100mg daily and dexamethasone 40mg weekly. The rationale for dose escalation of carfilzomib to 56mg/m2 is based on two findings: a) the 20/56mg/m2 dose escalation was well tolerated in the PX-171-007 trial and b) no dose limiting toxicities were seen with carfilzomib 20/27mg/m2 when combined with lenalidomide and dexamethasone in patients with RRMM who were heavily pre-treated, in the PX-171-006 and PX-171-009 trial. The rationale for assigning an equal number of patients between the ALLG sites and AMN sites is to avoid bias with respect to potential biological differences between patients in Asia and Australia/New Zealand.

Conditions

This trial is treating patients with Multiple Myeloma.

Cancer

Blood Cancers Haematological

Age

People18+

Phase

II

Trial Acronym

ALLG MM18

More information

Trial Identifiers

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Trial sponsor

Celgene Corporation, Australasian Leukaemia and Lymphoma Group (ALLG)

Scientific Title

Single Arm, Multicentre Study of Carfilzomib in Combination With Thalidomide and Dexamethasone (CaTD) in Patients With Relapsed and/or Refractory Multiple Myeloma (RRMM)

Eligibility

Inclusion

1. Male and female patients, > or =18 years of age
2. Relapsed and/or refractory multiple myeloma at study entry.
3. Patients must have evaluable multiple myeloma with at least one of the following (assessed within 21 days prior to registration):
a. Serum M-protein > or = 5 g/L, or
b. Urine M-protein > or = 200 mg/24 hour, or
In patients without detectable serum or urine M-protein, serum free light chain (SFLC) > 100 mg/L (involved light chain) and an abnormal serum k/l ratio or
For IgA patients whose disease can only be reliably measured by serum quantitative immunoglobulin (qIgA) > or = 7500 mg/L (7.5 g/L).
4. Received at least one, but no more than three prior treatment regimens or lines of therapy for multiple myeloma. (Induction therapy followed by stem cell transplant and consolidation/maintenance therapy will be considered as one line of therapy).
5. Eastern Cooperative Oncology Group (ECOG) Performance Status 0-2.
6. Adequate hepatic function within 28 days prior to registration with bilirubin < 1.5 times the upper limit of normal (ULN), and aspartate aminotransferase (AST) and alanine aminotransferase (ALT) < 3 times the ULN.
7. Left Ventricular Ejection Fraction (LVEF) > or = 40%.
8. Absolute neutrophil count (ANC) > or = 1000/mm3 (or 1000 cells/microL) within 21 days prior to registration. Screening ANC should be independent of growth factor support for > or = 1 week.
9. Platelet count > or = 50,000 cells/mm^3 (> or = 30,000 cells/mm3 if myeloma involvement in the bone marrow is > 50%) within 21 days prior to registration. Patients should not have received platelet transfusions for at least 1 week prior to obtaining the screening platelet count.
10. Calculated or measured creatinine clearance (CrCl) of > or =15 mL/min within 21 days prior to registration. Calculation should be based on the Cockcroft and Gault formula
11. Written informed consent in accordance with federal, local, and institutional guidelines.
12. Female patients of child-bearing potential (FCBP) must have negative serum pregnancy test within 21 days prior to registration and agree to use an effective method of contraception during and for 3 months following last dose of drug.
13. Male patients must use an effective barrier method of contraception during study and for 3 months following the last dose if sexually active with a FCBP.

Exclusion

1. Chemotherapy with approved or investigational anticancer therapeutics within 21 days prior to registration, with the exception of dexamethasone up to 160mg or equivalent every 4 weeks.
2. Previous treatment with carfilzomib.
3. Focal radiation therapy within 7 days prior to registration. Radiation therapy to an extended field involving a significant volume of bone marrow within 21 days prior to registration (i.e., prior radiation must have been to less than 30% of the bone marrow).
4. Active congestive heart failure (New York Heart Association [NYHA] Class III to IV), symptomatic ischemia, or conduction abnormalities uncontrolled by conventional intervention. Myocardial infarction within four months prior to registration.
5. Acute active infection requiring systemic antibiotics, antiviral (except antiviral therapy directed at hepatitis B) or antifungal agents within 14 days prior to registration.
6. Known HIV seropositive and/or untreated hepatitis B (patients with hepatitis B surface antigen [HBsAg] and core antibody [HBcAb] are eligible if receiving adequate antiviral therapy directed at hepatitis B).
7. Patients with known cirrhosis.
8. Active malignancy, that is expected to require treatment with chemotherapy within one year, or results in a life expectancy less than one year.
9. Female patients who are pregnant or lactating.
10. Known history of allergy to Captisol (registered trademark) (a cyclodextrin derivative used to solubilise carfilzomib)
11. Patients with hypersensitivity to carfilzomib, velcade, boron, or mannitol.
12. Patients with pleural effusions requiring thoracentesis or ascites requiring paracentesis within 14 days prior to registration.
13. Significant neuropathy (Grades 3-4, or Grade 2 with pain) within 14 days prior to registration.
14. Any other clinically significant medical disease or psychiatric condition that, in the Investigator’s opinion, may interfere with protocol adherence or a patient’s ability to give informed consent.

Inclusion

  • You have had treatment but your cancer has gotten worse or has not responded to the treatment you have been given.

Exclusion

  • You have been diagnosed with a prior or secondary type of cancer.
  • You have certain types of non-cancer medical conditions.
  • You have had certain treatments, surgical procedures or drugs.
Message

Clinical trials have complex eligibility criteria.

Ask your doctor if this trial could be right for you.

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