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Safety and Pharmacology Study of SNX-5422 in Subjects With Refractory Solid Tumor Malignancies

A Phase 1, Open-label, Dose-escalation Study of the Safety and Pharmacokinetics of SNX-5422 in Subjects With Refractory Solid Tumor Malignancies or Non-Hodgkin's Lymphoma

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01611623
Enrollment
9
Registered
2012-06-05
Start date
2012-05-31
Completion date
2013-03-31
Last updated
2013-04-02

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

Conditions

Cancer

Keywords

Solid tumor malignancy, Hsp90

Brief summary

Hsp90 is a chemical in the body that is involved in promotion of cancer. SNX-5422 is an experimental drug that blocks Hsp90. It is being evaluated for safety in patients with cancer.

Detailed description

Correlation has been observed between Hsp90 client protein level changes and functional effects in cells in in vitro studies of SNX-5422, supporting inhibition of Hsp90 as the mechanism of action for this compound. SNX-5422 has demonstrated significant antitumor activity in mouse xenograft models of human tumors, including breast (BT474, MX-1), colon (HT29), prostate (PC3), and melanoma (A375) with multiple oral dosing regimens. This study will employ critical risk management features including the use of the NCI Common Terminology Criteria for Adverse Events (CTCAE) Version 4.03, which provides a scale for consistently grading the severity of AEs, toxicity criteria analyses for dose escalation, frequent laboratory and clinical observations, correlation of AEs with plasma concentrations of drug, monitoring of the QTc interval at appropriate time points, and a conservative dose-escalation scheme.

Interventions

Tablets dose every other day; dose escalation based on safety

Sponsors

Esanex Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* \>18 years old histologically confirmed solid tumor malignancy refractory to available therapy or for which no therapy is available adequate organ function

Exclusion criteria

* CNS malignancy significant GI disease at risk for prolonged QT interval

Design outcomes

Primary

MeasureTime frameDescription
Number of patients with dose limiting toxicitiesFirst 28 day cycleNumber of patients with dose limiting toxicities defined as Grade 3 or higher on the CTCAE version 4.03 clearly related to disease progression in each dose cohort during the first cycle of study drug administration

Secondary

MeasureTime frameDescription
Pharmacokinetic profiles of parent drug and metaboliteDay 1 and Day 21 first cycleAssessment of standard pharmacokinetic parameters including area under the plasma-concentration time curve, volume of distribution, clearance elimination half life
Number of patients with adverse events as a measure of tolerabilityDay 28 of each cycleFrequency and severity of AEs, changes in vital signs (including self-reported pain), ECG, physical examination, and clinical laboratory parameters (clinical chemistry, hematology, and urinalysis).

Outcome results

None listed

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