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Study of Pexidartinib in Asian Subjects With Advanced Solid Tumors

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Daiichi Sankyo

Status and phase

Completed
Phase 1

Conditions

Advanced Solid Tumors

Treatments

Drug: Pexidartinib

Study type

Interventional

Funder types

Industry

Identifiers

NCT02734433
PL3397-A-A103

Details and patient eligibility

About

This is a Phase I, non-randomized, open-label, multiple dose study of pexidartinib in Asian subjects with advanced solid tumors. The study will be conducted in a dose escalation to assess the safety and tolerability, pharmacokinetics (PK) and pharmacodynamics (PD), and preliminary antitumor activity of pexidartinib.

Enrollment

12 patients

Sex

All

Ages

20+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Age should be ≥ 20 years

  • Subjects must have a pathologically documented solid tumor that has relapsed from, or is refractory to standard treatment, or for which no standard treatment is available

  • All associated toxicity from previous cancer therapy must have been resolved (to ≤ Grade 1) prior to administration of pexidartinib

  • Eastern Cooperative Oncology Group (ECOG) score of 0 or 1

  • Adequate hematologic, hepatic, and renal function tests

  • Adequate treatment washout period before registration defined as:

    1. Major surgery: ≥ 4 weeks (2 weeks for less invasive surgery, such as colostomy)
    2. Radiation therapy (eg, whole brain radiotherapy): ≥ 4 weeks (if palliative stereotactic radiation therapy, ≥ 2 weeks)
    3. Chemotherapy or immunotherapy (including targeted therapy with antibody or small molecule, retinoid therapy, and hormonal therapy): 4 weeks or 5 half-lives of the agent, whichever is shorter (if the regimen has contained nitrosoureas or mitomycin C, ≥ 6 weeks)
    4. Other investigational drug therapy: ≥ 4 weeks

Exclusion criteria

  • Refractory nausea and vomiting, malabsorption, external biliary shunt, or significant small bowel resection that would have precluded adequate absorption
  • Previous use of pexidartinib or any biologic treatment targeting colony stimulating factor-1 (CSF-1) or the receptor for colony-stimulating factor-1 (CSF1R); previous use of oral tyrosine kinase inhibitors, eg, imatinib or nilotinib, is allowed
  • Clinically active primary central nervous system tumors or brain metastasis, defined as untreated and symptomatic, or requiring therapy with steroids or anticonvulsants to control associated symptoms
  • Active or chronic infection with hepatitis C or known positive hepatitis B surface. antigen, or known active or chronic infection with human immunodeficiency virus
  • A screening Fridericia-corrected time between the start of the Q wave and the end of the T wave in the heart's electrical cycle (QTcF) ≥ 450 ms (in men) or ≥ 470 ms (in women).
  • A medical history or complications of clinically significant lung disease (eg, interstitial pneumonia, pneumonitis, pulmonary fibrosis, and severe radiation pneumonitis)
  • A history of symptomatic congestive heart failure (CHF) [New York Heart Association (NYHA) Classes II to IV] or serious cardiac arrhythmia requiring treatment
  • A history of myocardial infarction or unstable angina within 6 months before enrollment
  • An uncontrolled infection requiring intravenous injection of antibiotics, antivirals, or antifungals

Trial design

Primary purpose

Treatment

Allocation

N/A

Interventional model

Sequential Assignment

Masking

None (Open label)

12 participants in 1 patient group

Pexidartinib
Experimental group
Description:
Pexidartinib capsules administered twice daily in the morning and evening. Each cycle of treatment is 28 days in duration. The cycle of treatment is continued until disease progression, unacceptable toxicity, or consent withdrawal.
Treatment:
Drug: Pexidartinib

Trial documents
1

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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