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Phase I Trial of PX-478

A Phase 1 Trial of Oral PX-478 (a HIF-1α Inhibitor) in Patients With Advanced Solid Tumors or Lymphoma

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00522652
Enrollment
45
Registered
2007-08-30
Start date
2007-08-31
Completion date
2010-05-31
Last updated
2018-05-17

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

Conditions

Advanced Solid Tumors, Lymphoma

Keywords

cancer, advanced cancer, lymphoma

Brief summary

This study is being conducted to determine the safety and biologic activity of PX-478, and to allow for observation of any preliminary evidence of antitumor activity in patients with advanced metastatic cancer.

Interventions

DRUGPX-478

Oral formulation, dose escalation, taken on days 1 to 5 of a 21 day cycle until progression or development of unacceptable toxicity

Sponsors

Cascadian Therapeutics Inc.
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

* The patient has signed the informed consent and must be considered legally capable of providing his or her own consent for participation in this study. * The patient has a histologically or cytologically confirmed diagnosis of advanced solid tumor or lymphoma and has failed or is intolerant of standard therapy. * The patient is ≥18 years of age. * ECOG performance status 0 to 1. * The patient has a predicted life expectancy of at least 12 weeks. * Patients must have discontinued prior chemotherapy or other investigational agents for at least three weeks prior to receiving the first dose of study drug (six weeks for mitomycin C, nitrosureas, vaccines, or antibody therapy) and recovered from the toxic effects of that treatment (recovered to baseline or ≤Common Toxicity Criteria for Adverse Events (CTCAE) grade 1). * Patients must have discontinued any radiation therapy at least four weeks prior to entry into the study and have recovered from all radiation-related toxicities (recovered to baseline or ≤CTCAE grade 1). * The patient has adequate hematologic function defined as: WBC count \>3,000 cells/μL; platelets \>100,000/μL; hemoglobin \>9 g/dL (may be transfused to this level); ANC \>1500 cells/μL. * The patient has adequate hepatic function defined as: bilirubin \<1.5 mg/dL; aspartate aminotransaminase (AST/SGOT) & alanine aminotransferase (ALT/SGPT) \<2.5 x ULN or \<5 x ULN if due to metastatic disease. * The patient has adequate renal function as defined by serum creatinine level \<1.5 mg/dL. * Women of childbearing potential must agree to use adequate contraception (hormonal or barrier method; abstinence) prior to study entry and for the duration of study participation. The patient, if a man, agrees to use effective contraception or abstinence.

Exclusion criteria

* Patients with any active infection requiring i.v. antibiotics at study entry. * Any serious concomitant systemic disorders that in the opinion of the investigator would place the patient at excessive or unacceptable risk of toxicity. * Surgery within the four weeks prior to the first dose of PX 478. * Significant central nervous system (CNS) or psychiatric disorder(s) that preclude the ability of the patient to provide informed consent. * Known or suspected brain metastases that have not received adequate therapy. In the case of previously treated brain metastases, a minimum of four weeks interval between completion of radiation therapy and registration on study with radiologic evidence of stable or responding brain metastases is required. In the setting of previous CNS metastasectomy, adequate (minimum four week) recovery from surgery and/or radiation therapy should be documented. * Patients with a history of seizures, non-healing wounds, or arterial thrombosis. * Patients with unstable atrial or ventricular arrhythmias requiring control by medication; any cardiac ischemic event experienced within the preceding six months; prior history of congestive heart failure requiring therapy. * Patients who are breastfeeding or pregnant (confirmed by serum β-HCG within 10 days prior to the start of study treatment if applicable). * Patients with total gastrectomy or partial bowel obstruction. * Any condition that could jeopardize the safety of the patient and compliance with the protocol.

Design outcomes

Primary

MeasureTime frame
To determine the MTD of PX-478 administered orally on days one to five of a 21 day cycle21 days

Secondary

MeasureTime frame
To evaluate the safety profile of PX-478 when administered orally on days one to five of a 21 day cycle42 days
To evaluate pharmacodynamic measures of the effects of PX 478 on the HIF 1-alpha pathway, and related tumor markers42 days
To determine the PK profile of PX 478 when administered orally on days one to five of a 21 day cycle21 days
To evaluate the effects of PX 478 on tumor blood flow and vascular permeability as measured by DCE MRI21 days
To evaluate the anti-tumor activity of PX 478 in patients with advanced malignancies42 days

Countries

United States

Outcome results

None listed

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