Clinical Trial Finder

Inclusion Criteria:

1. Signed informed consent. 2. 18 years of age or older. 3. Multiple myeloma (MM) diagnosed according to IMWG criteria. 4. Measurable disease (this is defined differently in different arms) 5. Multiple myeloma relapsed or refractory to treatment (this is defined differently in different arms) 6. Meet certain clinical laboratory criteria. 7. ECOG performance status ≤2. 8. Life expectancy of at least 3 months. 9. For women of childbearing potential, a negative serum or urine pregnancy test prior to study treatment. 10. For women who are not postmenopausal (12 months of amenorrhea) or surgically sterile (absence of ovaries and/or uterus): agreement to use two methods of contraception one of which must be highly effective. 11. For men: agreement to use a barrier method of contraception for 1 month before start of study treatment, during the treatment period and for 6 months after the last dose of study treatment.

Exclusion Criteria:

1. Failure to have fully recovered (i.e. ≤ Grade 1 toxicity) from the effects of prior chemotherapy (except for alopecia) 2. Active graft versus host disease. 3. Treatment with any of the following: 1. Cytotoxic chemotherapy within 3 weeks prior to the initiation of study treatment. 2. Proteasome inhibitors, Imids, or monoclonal antibodies within 2 weeks prior to the initiation of study treatment. 3. Experimental therapy within 4 weeks or 5 half-lives, whichever is shorter. 4. Systemic corticosteroids >=10 mg prednisone or equivalent within 7 days prior to the initiation of study treatment. 5. Radiotherapy within 7 days prior to initiating study treatment. 6. Plasmapheresis within 4 weeks prior to the initiation of study treatment. 7. Tasquinimod at any time. 4. Known central nervous system involvement by myeloma. 5. Diagnosis of smoldering multiple myeloma. 6. Diagnosis of POEMS syndrome (plasma cell dyscrasia with polyneuropathy, organomegaly, endocrinopathy, monoclonal protein, and skin changes) 7. Active plasma cell leukemia. 8. Symptomatic primary (AL) amyloidosis. 9. Diagnosis of myelodysplastic syndrome or myeloproliferative syndrome. 10. Active other malignancy. 11. Major surgery within 4 weeks prior to initiating study treatment. 12. Evidence of severe or currently uncontrolled cardiovascular condition. 13. Ongoing or active systemic infection that requires systemic antibiotic or parenteral anti-infective therapy. 14. Active tuberculosis, active hepatitis A, B or C virus infection, or known human immunodeficiency virus (HIV) positive. 15. History of pancreatitis. 16. History of malabsorption or other condition that would interfere with absorption of study drugs. 17. Systemic treatment within 14 days prior to the initiation of study treatment with moderate or strong inhibitor or moderate or strong inducer of cytochrome P-3A4 (CYP3A4) 18. Need for ongoing therapy drug substances of narrow therapeutic range that are metabolized mainly by CYP3A4 (alfentanil, fentanyl, quinidine, astemizole, terfenadine, sirolimus, tacrolimus, cyclosporine, cisapride, ergotamine) 19. Need for ongoing therapy with drug substances of narrow therapeutic range metabolized mainly by CYP1A2 (duloxetine, alosetron, theophylline, tizanidine, ondansetron) 20. Ongoing treatment with warfarin, unless the INR is <=3.0. 21. For subjects enrolled on the IRd combination arms, prior dose-limiting toxicity with lenalidomide or ixazomib or absolute contraindication to concomitant thrombosis prophylaxis. 22. Peripheral neuropathy grade ≥2 (NCI-CTCAE) 23. Known hypersensitivity to tasquinimod or any excipients in the study treatments. 24. Pregnant or nursing (lactating) women. 25. Any other condition that would, in the Investigator's judgment, contraindicate subject's participation in the clinical study due to safety concerns or compliance with clinical study procedures. 26. Prior inclusion in this study

Tasquinimod has previously been studied as an anti-cancer agent in patients with other cancers, including a phase 3 randomized trial in patients with metastatic prostate cancer that showed an improvement in radiographic progression-free survival. The side effect profile of tasquinimod is well-characterized based on this previous experience. This trial will establish a maximum tolerated dose and optimal schedule for administration of tasquinimod in patients with multiple myeloma and then investigate the maximum tolerated dose of tasquinimod in combination with a standard myeloma regimen of ixazomib, lenalidomide, and dexamethasone (IRd). For both single agent tasquinimod and the combination of tasquinimod with IRd, exploratory expansion cohorts will be enrolled to preliminarily characterize the antimyeloma activity of each regimen.

Arms

Experimental: A1: Tasquinimod single agent dose escalation

There are up to 5 planned dose levels, with 3 de-escalation dose levels available in case dose level 1 is determined to exceed the MTD. This arm will enroll 15-30 subjects if all dose levels are explored.

Experimental: A2: Tasquinimod single agent expansion

Additional subjects will enroll in arm A2 at the MTD and optimal schedule, so that 12 subjects total who are evaluable for response will have received the MTD/optimal schedule of single agent tasquinimod. Enrollment in arm A2 will not begin until enrollment in arm A1 has been completed and a single agent MTD/optimal schedule has been established.

Experimental: B1: Tasquinimod+IRd dose escalation

Dose levels will be defined according to the same tasquinimod doses as in the single agent (Arm A1) dose escalation. Enrollment in arm B1 will not begin until enrollment in arm A1 has been completed and an MTD/optimal schedule has been established for single agent tasquinimod. Initial subjects in arm B1 will be enrolled at the lower of dose level 1 or one dose level below the single agent MTD . If this initial dose level is determined to exceed the combination MTD, further subjects will be enrolled at one dose level lower. Enrollment is not planned in arm B1 at doses higher than the single agent MTD. There are 9-12 planned subjects if all dose levels are explored.

Experimental: B2: Tasquinimod+IRd expansion

Additional subjects will enroll in arm B2 at the MTD and optimal schedule, so that 12 subjects total who are both evaluable for response and previously refractory to their most recent Imid/PI combination will have received the MTD/optimal schedule of tasquinimod in combination with ixazomib, lenalidomide, and dexamethasone. To facilitate rapid enrollment and gain more experience with the combination therapy, up to 12 additional subjects with triple-class refractory myeloma (who are not previously refractory to their most recent Imid/PI combination) may be enrolled in cohort B2. Enrollment in arm B2 will not begin until enrollment in arm B1 has been completed and a combination MTD/optimal schedule has been established.

Interventions

Drug: - Tasquinimod

Tasquinimod will be supplied as oral capsules.

Drug: - IRd chemotherapy

IRd chemotherapy with ixazomib, lenalidomide, and dexamethasone