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Study of AMG 706 in Subjects With Advanced Gastrointestinal Stromal Tumors (GISTs)

An Open Label Study of AMG 706 in Subjects With Advanced Gastrointestinal Stromal Tumors (GISTs) Who Developed Progressive Disease or Relapsed While on Imatinib Mesylate

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00089960
Enrollment
138
Registered
2004-08-20
Start date
2004-10-31
Completion date
2008-06-30
Last updated
2013-04-29

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

Conditions

Gastrointestinal Cancer

Keywords

GIST

Brief summary

This study will determine the safety and effectiveness of AMG 706 in patients with advanced GIST.

Detailed description

Expanded Access: Amgen provides expanded access for this clinical trial. Contact the Amgen Call Center (866-572-6436) for more information.

Interventions

AMG 706 125 mg daily for 48 weeks, or until progressive disease or unacceptable toxicity.

Sponsors

Amgen
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

* Age ≥ 18 years; * Disease progression per Response Evaluation Criteria in Solid Tumors (RECIST) during previous treatment with imatinib mesylate at least 600 mg daily for at least 8 weeks, as per two independently assessed prestudy computerized tomography (CT) scans; * Presence of at least one measurable (per RECIST) * Progressing tumor lesion not previously treated with radiotherapy or embolization and evaluable by CT scan or magnetic resonance imaging (MRI); * Karnofsky performance status ≥ 60; * imatinib treatment terminated at least 7 days before study day 1; * Adequate hepatic, renal, and cardiac function.

Exclusion criteria

* Prior malignancy (other than GIST, in situ cervical cancer, or basal cell cancer of the skin) unless treated with curative intent and without evidence of disease for ≥ 3 years; cardiac disease including myocardial infarction, unstable angina, and congestive heart failure (New York Heart Association class \> II), * uncontrolled hypertension (systolic \> 145 mmHg or diastolic \> 85 mmHg), * History of arterial thrombosis or deep vein thrombosis (including pulmonary embolus) within 1 year of study day 1; * Absolute neutrophil count \< 1.5x109/L, platelet count \< 100x109/L, hemoglobin \< 9.0 g/dL; * Prior treatment with motesanib diphosphate or other KIT (except imatinib) or VEGF inhibitors. * The study was approved by the institutional review board of each participating institution, and all patients provided written informed consent before any study-related procedures were performed.

Design outcomes

Primary

MeasureTime frame
Objective response rate as defined using modified RECIST criteria.48 weeks treatment or until progressive disease, or unacceptable toxicity

Secondary

MeasureTime frame
Progression-free survivaltime from randomization to progressive disease
Overall survivaltime to death
Time to progressiontime from response to progressive disease
Time to responsetime from first treatment to response
Patient-reported outcomesquality of life
Use of opioid analgesics after minimal 6 months treatmentnarcotics usage during study
Objective response by PET and tumor size/density changes at week 8response rate at week 8
Objective response by size changes and/or target tumor density changes at week 8response rate at week 8
Safety Endpoints: Incidence of adverse events (including all, serious, grade 3, grade 4 and treatment related)for duration of study
Duration of responsetime to respone to progression
Palliative responseamelioration of symptoms
Pharmacokinetic Endpoints: 1. The AMG 706 PK parameters (Cmax, t1/2, AUC0-24, C24); 2. To explore the PK/PD relationshipsduring specific study timepoints

Outcome results

None listed

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