Expired Study
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New York, New York 10065


This is a phase 1/2 single arm study to determine the safety and efficacy of VLX1570 IV infusion administered with low dose dexamethasone in patients with relapsed or relapsed and refractory multiple myeloma.

Study summary:

This is a phase 1/2, open label study to determine the safety and efficacy of VLX1570 intravenous (IV) infusion administered with low dose dexamethasone on days 1, 2, 8, 9, 15, 16 of a 28-day cycle in patients with confirmed diagnosis of multiple myeloma with relapsed or relapsed and refractory disease (RRMM). The phase 1 trial design follows an Initial Accelerated Titration design followed by a traditional "3+3" cohort design to establish maximum tolerated dose (MTD) and recommended phase 2 dose (RPTD) for the phase 2 portion of the study. It is anticipated that patients will receive 6 treatment cycles. In the absence of unacceptable toxicity and disease progression, patients have the option of continuing treatment beyond 6 cycles, if the investigator determines that the patient may benefit further from it.


Inclusion Criteria: 1. Diagnosis of relapsed or relapsed and refractory multiple myeloma following at least 2 prior therapies which must include at least one immunomodulatory drug (e.g., thalidomide, lenalidomide or pomalidomide) and one proteasome inhibitor (e.g., bortezomib or carfilzomib). Patients must not be candidates for regimens known to provide clinical benefit. 2. Measurable disease defined by 1 or more of the following: - Serum monoclonal protein ≥ 0.5 g/dL - Urine monoclonal protein >200 mg/24 hour - Serum immunoglobulin free light chain >10 mg/dL AND abnormal kappa/lambda ratio (reference 0.26-1.65) 3. Estimated glomerular filtration rate (GFR) ≥30 mL/min as assessed by CKD-epi, MDRD or the Cockcroft-Gault Equation 4. Age ≥18 years. 5. Eastern Cooperative Oncology Group (ECOG) performance status 0, 1 or 2. 6. Females of child-bearing potential* must have a negative pregnancy test. 7. Males and females of child-bearing potential*, willing to use an effective form of contraception during chemotherapy treatment and for at least 6 months thereafter. Such methods include: (if using hormonal contraception this method must be supplemented with a barrier method, preferably male condom) - oral, intra-vaginal or transdermal combined (estrogen and progestogen containing) hormonal contraception associated with inhibition for ovulation - oral, injectable or implantable progestogen-only hormonal contraception associated with inhibition of ovulation. - intrauterine device (IUD) - intrauterine hormone-releasing system (IUS) - bilateral tubal occlusion - vasectomised partner - true sexual abstinence when this is in line with the preferred and usual lifestyle of the subject. Periodic abstinence (e.g. calendar, ovulation, symptothermal, post-ovulation methods), declaration of abstinence for the duration of the trial, and withdrawal are not acceptable methods of contraception. 8. Absolute neutrophil count (ANC) ≥1.0 x 109 /L, hemoglobin ≥8 g/dL, and platelet count ≥ 75 x 109/L. 9. Adequate hepatic function, with bilirubin < 1.5 x the ULN, and AST and ALT < 2.5 x ULN. 10. Patient has or is willing to have a central venous catheter (e.g. PICC, Port-A-Cath®, Hickman® catheter) for drug administration. Exclusion Criteria: 1. Any concurrent treatment that would compromise the study including but not limited to: - Planned concurrent treatment for multiple myeloma other than bisphosphonates - Ongoing corticosteroids for indications other than multiple myeloma allowed as long as the dose does not exceed 10 mg of prednisone per day or equivalent - Persisting effects of any previous or ongoing treatment ≥ grade 1 that might compromise delivery of study treatment or assessment of adverse events (except alopecia or neuropathy ≤ grade 2 without pain) 2. Any cytotoxic or biologic therapy less than 2 weeks prior to initiation of therapy. 3. Pregnant or breast feeding females. 4. Uncontrolled hypertension or diabetes. 5. Known active hepatitis B or C infection or HIV infection. 6. Significant cardiovascular disease with NYHA Class III or IV symptoms, or hypertrophic cardiomegaly, or restrictive cardiomegaly, or myocardial infarction within 6 months prior to enrollment, or unstable angina, or unstable arrhythmia. 7. QTc interval >460 msec (males) or >470 msec (females); or repeated demonstration of a QTc interval >450 msec. 8. A history of additional risk factors for torsade de pointes (e.g., heart failure, hypokalemia, family history of Long QT Syndrome). 9. The use of concomitant medications that prolong the QT/QTc interval. 10. Uncontrolled intercurrent illness including but not limited to psychiatric illness/social situations that, in the opinion of the Investigator, would compromise compliance of study requirements or put the patient at unacceptable risk. 11. Active infection requiring systemic treatment within one week prior to first dose. 12. Major surgery within 1 month prior to enrollment. 13. Use of any investigational agent within the last 28 days. For classes of investigational agents that are not known to have prolonged toxicities the wash-out time may be decreased to 14 days after agreement with the Medical Monitor. 14. History of other malignancy (apart from basal cell carcinoma of the skin, or in situ cervix carcinoma) except if the patient has been free of symptoms and without active therapy for at least 2 years. 15. Known intolerance to steroids or H1/H2-antagonists. 16. Serum calcium (corrected for albumin) level above the ULN range (treatment of hypercalcemia is allowed and subject may enroll if hypercalcemia returns to normal with standard treatment). 17. Diagnosed with plasma cell leukemia, POEMS syndrome or amyloidosis. 18. Patients with a history of ventral nervous system (CNS) myeloma or other CNS malignancy.

Study is Available At:

Original ID:




Secondary ID:

Study Acronym:

Brief Title:

A Study of VLX1570 and Dexamethasone in Myeloma Patients

Official Title:

VLX1570 and Low-Dose Dexamethasone in Relapsed or Relapsed and Refractory Multiple Myeloma: A Clinical and Correlative Phase 1/2 Study

Overall Status:


Study Phase:

Phase 1/Phase 2



Minimum Age:

18 Years

Maximum Age:


Quick Facts

Healthy Volunteers
Oversight Has DMC
Study Is FDA Regulated
Study Is Section 801
Has Expanded Access

Study Source:

Vivolux AB

Oversight Authority:

United States: Food and Drug Administration

Reasons Why Stopped:

Dose limiting tox is observed. Study put on

Study Type:


Study Design:

Number of Arms:


Number of Groups:


Total Enrollment:


Enrollment Type:


Study Dates

Start Date:April 8, 2015
Completion Date:May 24, 2017
Completion Type:Actual
Primary Completion Date:May 24, 2017
Primary Completion Type:Actual
Verification Date:May 2018
Last Changed Date:May 3, 2018
First Received Date:February 5, 2015

Study Outcomes

Outcome Type:Primary Outcome
Measure:Maximum tolerated dose (MTD) of VLX1570 with low dose dexamethasone
Time Frame:Duration of treatment (expected avg. 6 months) and up to 30 days following the last dose/off-study
Safety Issues:False
Outcome Type:Primary Outcome
Measure:Clinical benefit rate (minimal response or better) in patients associated with administration of VLX1570 with low dose dexamethasone
Time Frame:From date of first dose until the date of first documented progression or date of death from any cau
Safety Issues:False
Outcome Type:Secondary Outcome
Measure:Frequency and severity of adverse events associated with the combination of VLX1570 and low dose dexamethasone
Time Frame:Duration of treatment (expected avg. 6 months) and up to 30 days following the last dose/off-study
Safety Issues:False
Outcome Type:Secondary Outcome
Measure:Pharmacokinetic profile of VLX1570 following IV infusion
Time Frame:48 hours post dose
Safety Issues:False
Description:PK parameters include Cmax, Tmax, AUC, half-life, clearance
Outcome Type:Secondary Outcome
Measure:Investigate Objective Response per International Myeloma Working Group criteria at any dose of VLX1570 with low dose dexamethasone.
Time Frame:Pre-dose cycle 1, 2 and cycles on new dose, and in cycle 5 (or at time of CR or PD).
Safety Issues:False
Description:SPEP/UPEP, IFE, SFLC

Study Interventions

Intervention Type:Drug
Name:VLX1570 and dexamethasone
Arm Name:VLX1570 and dexamethasone

Study Arms

Study Arm Type:Experimental
Arm Name:VLX1570 and dexamethasone
Description:VLX1570 IV (0.05, 0.15, 0.3, 0.6, 1.2, 2.0 mg/kg) on days 1, 2, 8, 9, 15 and 16 of a 28-day cycle Dexamethasone 20 mg PO/IV

Study Agencies

Agency Class:Industry
Agency Type:Lead Sponsor
Agency Name:Vivolux AB
Agency Class:Industry
Agency Type:Collaborator
Agency Name:Theradex

Sample and Retention Information

There are no available Sample and Retention Information

Study References

There are no available Study References

Data Source: ClinicalTrials.gov

Date Processed: January 21, 2020

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