CPD-DARA in Patients With Relapsed/Refractory Multiple Myeloma.

• Status: Not yet recruiting
• Trial end date: 2025-03-01
• Target enrollment: 0
• Participant gender: All

Summary

This study is a Phase Ib, open label, single arm, adaptive multi-centre clinical study. The target population for this study are patients with relapsed/refractory multiple myeloma (MM). Patients will have a confirmed diagnosis of MM, with measurable disease as per IMWG criteria, in the second relapse and beyond (third line of therapy and beyond). Patients will need to have exposure to lenalidomide and a proteasome inhibitor. Patients will be treated with Cyclophosphamide-Pomalidomide-Dexamethasone (CPD) in combination with daratumumab (DARA) to determine the Maximum Tolerated Dose (MTD), Dose Limiting Toxicity (DLT) and Recommended Phase II Dose (RP2D) of the combination.

Pomalidomide will be administered orally at three dose levels 4, 3 and 2mg on days 1-21 of each 28-day cycle. Treatment will be repeated on day 1 of a 28-day cycle until disease progression, unacceptable toxicity, withdrawal of consent, physician's decision, or sponsor's decision to terminate the study, whichever occurs first.

• Phase: Phase 1
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: Cancer Trials Ireland
• Collaborators: Celgene; Janssen Pharmaceuticals
• Treatments: Cyclophosphamide; Daratumumab; Dexamethasone; Pomalidomide

Criteria

Inclusion Criteria:

1. Must sign an informed consent form demonstrating that he or she understands the study and all procedures involved, and confirming he or she is willing to participate.

2. Age ≥ 18 years of age.

3. Confirmed diagnosis of multiple myeloma as per IMWG Criteria Appendix C and measurable disease defined by:

• Monoclonal plasma cells in the bone marrow ≥ 10% or presence of a biopsy proven plasmacytoma AND

• Measurable disease as defined by any of the following:

• IgG multiple myeloma: serum monoclonal paraprotein (M-protein) level ≥ 1.0 g/dl or urine M-protein level ≥ 200mg/24 hours;

• IgA, IgE, IgD or IgM multiple myeloma: serum M-protein level ≥ 0.5g/dl or urine M-protein level ≥ 200mg/24 hours;

• Light chain multiple myeloma without measurable disease in the serum or the urine: serum immunoglobulin free light chain ≥ 10mg/dl and abnormal serum immunoglobulin kappa lambda free light chain ratio.

4. ECOG Performance Status ≤ 2 (Appendix B).

5. Patients with relapsed (having achieved stable disease or better in the last line of therapy) disease who have progressive disease as defined by the IMWG Criteria Appendix C or patients with refractory disease (who failed to achieve a response [stable disease (SD) or better] to their last line of therapy).

6. Patients have received two or more prior lines of therapy (including a proteasome inhibitor and an immunomodulatory drug (IMiD)) but not more than five (induction, consolidation, ASCT maintenance is considered single line therapy for the purpose of this study). Patients with prior exposure to DARA and/or pomalidomide can also be included.

7. Patients must have pre-study laboratory results meeting the following criteria during the screening period:

1. Haemoglobin ≥ 8 g/dL (transfusions of packed red cells are permitted to achieve this).

2. Neutrophil count ≥ 1.5 × 109/L (G-CSF is permitted up to 7 days prior to screening).

3. AST and ALT ≤ 2.5 × upper limit of normal.

4. Calculated creatinine clearance ≥ 30mL/min/1.73m2 (Cockcroft - Gault Equation) Appendix F.

5. Platelet count ≥ 75 x 109/L in patients for whom <50% of bone marrow nucleated cells were plasma cells (> 50 × 109/L, otherwise).

8. Patients who are women of child-bearing potential or male partners of women of child-bearing potential must agree to use two adequate/reliable contraception methods simultaneously from signing of the informed consent form until at least 6 months after the last study drug administration. A female of childbearing potential (FCBP) is a female who: 1) has achieved menarche at some point, 2) has not undergone a hysterectomy or bilateral oophorectomy or 3) has not been naturally postmenopausal (amenorrhea following cancer therapy does not rule out childbearing potential) for at least 24 consecutive months (i.e. has had menses at any time in the preceding 24 consecutive months). Suitable contraceptive methods include:

1. combined (oestrogen and progestogen containing) hormonal contraception associated with inhibition of ovulation (oral, intravaginal, transdermal)

2. progestogen-only hormonal contraception associated with inhibition of ovulation (oral, injectable and implantable),

3. intrauterine device (IUD) or intrauterine hormone - releasing system (IUS),

4. bilateral tubal occlusion

5. successfully vasectomised partner

6. sexual abstinence. In addition, the use of condoms by patients or their partners is required (even if the male patient or partner has undergone a successful vasectomy) unless the woman has had a hysterectomy.

9. Must be physically and psychologically able to undergo the treatment and adhere to the schedules outlined within this protocol.

Exclusion Criteria:

1. Life expectancy < 3 months.

2. Allogeneic stem cell transplantation at any time.

3. Autologous stem cell transplantation within 12 weeks prior to Cycle 1 Day 1.

4. Peripheral neuropathy (grade ≥ 2) as defined by the NCI CTCAE Version 5.0.

5. Meningeal or Central Nervous System (CNS) involvement of myeloma.

6. Acute or chronic active viral infections (Hep B, Hep C, HIV), systemic fungal infections and parasitic infections.

7. Acute active infection requiring antibiotics.

8. Current medical or psychiatric condition or disease that could interfere with the study procedures or results.

9. Chronic obstructive pulmonary disease with a forced expiratory volume in 1 second (FEV1) < 50% of predicted normal. Patients with chronic obstructive pulmonary disease (COPD) will require FEV1 testing prior to inclusion in the study.

10. Moderate or severe persistent asthma, or current uncontrolled asthma Appendix G.

11. Diagnosis of severe chronic liver disease i.e. > stage 1 cirrhosis classified with Child-Pugh score.

12. Significant heart disease including:

1. Myocardial Infarction within 1 year prior to registration, or unstable / uncontrolled IHD.

2. Heart failure with NYHA grade ≥ 2 Appendix H.

3. Cardiac Arrythmia (CTCAE version 5 Grade ≥ 3 or clinically significant ECG abnormalities).

4. Screening 12 lead ECG showing a baseline QTcF > 470 msec.

13. Known allergy, hypersensitivity or intolerance to boron or mannitol, corticosteroids, monoclonal antibodies or human proteins or their excipients, or any of the components of the treatment regime (refer to IB/SmPC).

14. Patients who have had any prior or concurrent invasive malignancy (other than multiple myeloma) within five years of the screening period, except adequately treated basal cell or squamous cell carcinoma of the skin, carcinoma in situ of the cervix, localized prostate adenocarcinoma diagnosed ≥ 3 years and without evidence of biochemical failure, or other cancer for which the patients has undergone potentially curative therapy and has had no evidence of that disease for ≥ 10 years.

15. Patients have received an investigational drug or used an invasive medical device within 4 weeks of registration.

16. Patients have undergone recent major surgery within 4 weeks of Cycle 1 Day 1.

17. Therapeutic radiation within 14 days of Cycle 1 Day 1.

18. Significant malabsorption states. Rare hereditary problems of galactose intolerance, the Lapp lactase deficiency or glucose-galactose malabsorption.

19. Gastric and duodenal ulcer.

20. Known AL amyloidosis.

21. Contraindications to thromboprophylaxis with low molecular weight heparin (LMWH) or aspirin e.g. hypersensitivity to LMWH, history of immune-mediated heparin-induced thrombocytopenia (HIT) within the past 100 days or in the presence of circulating antibodies, active clinically significant bleeding and conditions with a high risk of haemorrhage including recent (<12 weeks haemorrhagic stroke, gastrointestinal ulcer, presence of malignant neoplasm at high risk of bleeding, recent (< 4 weeks) brain, spinal or ophthalmic surgery, known or suspected oesophageal varices, arteriovenous malformations, vascular aneurysms or major intraspinal or intracerebral abnormalities.

22. Vaccination with live vaccines.

23. Bone-marrow aplasia.

24. Urinary tract infection.

25. Acute urothelial toxicity from cytotoxic chemotherapy or radiation therapy.

26. Urinary outflow obstruction.

27. Patient is a woman who is pregnant, or breast-feeding, or planning to become pregnant while participating in this study or within 6 months after the last dose of any component of the treatment regimen. Or, patient is a man who plans to father a child while included in this study or within 6 months after the last dose of any component of the treatment regimen.