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Study of CX-4945 in Patients With Relapsed or Refractory Multiple Myeloma

A Phase 1, Open-Label, Dose-Escalation, Safety, Pharmacokinetic, and Pharmacodynamic Study of CX-4945 Administered Orally to Patients With Relapsed or Refractory Multiple Myeloma

Status
UNKNOWN
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01199718
Enrollment
22
Registered
2010-09-13
Start date
2010-09-30
Completion date
2011-09-30
Last updated
2011-06-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Multiple Myeloma

Keywords

Multiple myeloma, Plasmacytoma

Brief summary

This Phase 1 study of oral CX-4945 is designed to test the safety, tolerability, and highest safe dose level of this CK2 inhibitor in patients with relapsed or refractory multiple myeloma.

Detailed description

Elevated CK2 activity has been associated with malignant transformation and aggressive tumor growth. Over expression of CK2 has been documented in multiple types of cancers, including multiple myeloma, and inhibition of CK2 represents a potential therapeutic strategy to target a specific molecular defect perpetuating many cancers. CX-4945 has demonstrated potent inhibition of CK2 enzymatic activity. This study will evaluate the safety, pharmacokinetics, and pharmacodynamic effects of CX-4945 when administered to patients with multiple myeloma.

Interventions

CX-4945 capsules, administered orally,as escalating doses. Dose schedule: four times daily for 21 consecutive days every 28 days.

Sponsors

Cylene Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Males or females at least 18 years of age * Confirmed relapsed or refractory multiple myeloma after at least two prior lines of therapy. * Measureable disease. * Karnofsky Performance Status at least 60% * Adequate liver and renal function and hematology laboratory values * Female patients of child-bearing potential must have a negative pregnancy test. * Signed informed consent.

Exclusion criteria

* Treatment with systemic cancer therapy within 21 days before screening. * Major surgery within 4 weeks or minor surgery within 2 weeks of the start of study drug. * Grade 3 sensory neuropathy or motor neuropathy with pain * Concurrent severe or uncontrolled medical disease. * Active systemic fungal, bacterial, and/or viral infection. * Difficulty with swallowing, or an active malabsorption syndrome. * Gastrointestinal diseases including Crohn's disease or hemorrhagic coloproctitis. * History of gastric or small bowel surgery. * Pregnant or nursing females.

Design outcomes

Primary

MeasureTime frameDescription
SafetyOne year (assessed at Cycle 1).Adverse events classified as Dose limiting toxicities. Determination of maximum tolerated dose.

Secondary

MeasureTime frameDescription
Pharmacokinetic and pharmacodynamic assessments.One year - assessed throughout all cycles of participationBlood levels of study drug when administered in escalating doses and modulation of biomarkers for CK2.
Assess for efficacy responseOne year (assessed after each cycle)Response assessments including M-protein levels as detailed by the International Myeloma Working Group Uniform Response Criteria.
Establish the recommended Phase 2 doseOne year

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026