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Study of XL999 in Patients With Metastatic Colorectal Cancer

A Phase 2 Study of XL999 Administered Intravenously to Subjects With Metastatic Colorectal Cancer

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00277303
Enrollment
17
Registered
2006-01-16
Start date
2005-12-31
Completion date
2007-02-28
Last updated
2010-02-22

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

Conditions

Colorectal Cancer

Keywords

Colon Cancer

Brief summary

This clinical study is being conducted at multiple sites to determine the activity, safety, and tolerability of XL999 when given weekly to patients with metastatic colorectal cancer (CRC). XL999 is a small molecule inhibitor of multiple kinases including VEGFR, PDGFR, FGFR, FLT-3, and Src, which are involved in tumor cell growth, formation of new blood vessels (angiogenesis), and metastasis.

Interventions

DRUGXL999

XL999 will be administered at 2.4 mg/kg as a 4-hour intravenous (IV) infusion. Subjects will receive XL999 infusions weekly for 8 weeks of treatment unless drug-related toxicity requires dosing delay. In the absence of progressive disease and unacceptable toxicity, subjects may receive XL999 treatment weekly for up to a year on this study. After 8 weeks, at the discretion of the investigator, one dose of four may be omitted for a subject's convenience.

Sponsors

Symphony Evolution, 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

* Males and females with histologically confirmed metastatic colorectal cancer * Measurable disease according to Response Criteria for Solid Tumors (RECIST) * At least 1 prior therapeutic regimen (chemotherapy or biologic) * ECOG performance status of 0 or 1 * Life expectancy ≥3 months * Adequate organ and marrow function * No other malignancies within 5 years * Signed informed consent

Exclusion criteria

* Radiation to ≥25% of bone marrow within 30 days of XL999 treatment * Treatment with systemic anticancer therapy within 30 days of XL999 treatment * Subject has not recovered to ≤ grade 1 or to within 10% of baseline from adverse events due to other medications administered \>30 days prior to study enrollment * History of or known brain metastases, current spinal cord compression, or carcinomatous meningitis * Uncontrolled and/or intercurrent illness * Pregnant or breastfeeding females * Known HIV

Design outcomes

Primary

MeasureTime frame
Response rateInclusion until disease progression
Safety and tolerabilityInclusion until 30 days post last treatment

Secondary

MeasureTime frame
Progression-free survivalInclusion until disease progression
Duration of responseInclusion until disease progression
Overall survivalInclusion until last Follow-up post last treatment or death
Pharmacokinetic (PK) and Pharmacodynamic (PD) parametersSamples will be collected pre-dose and immediately at the end for subjects in the second stage of the study

Countries

United States

Outcome results

None listed

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