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- Essai clinique NCT00586092
A Phase I Study of ABT-510 in Combination With Bevacizumab in Advanced Solid Tumors
A Phase I Study of ABT-510 in Combination With Bevacizumab in Advanced Solid
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
ABT-510: In the early 1990s, thrombospondin (TSP-1) was first recognized as an endogenously produced inhibitor of angiogenesis. Since then, thrombospondin has been shown to inhibit neovascularization and tumorigenesis in numerous mouse models. Its anti- angiogenesis properties have been localized to its N-terminal region. Although smaller fragments of this region retain some of thrombospondin's anti-angiogenesis properties, researchers have discovered that specific amino acid substitutions can greatly enhance these properties. From these efforts, ABT-510, a nine-amino acid synthetic peptide has emerged as a novel anti-angiogenesis agent. The peptide is soluble and stable in water and is administered parenterally as an acetate salt in 5% dextrose solution for clinical use.
ABT-510 has been evaluated in three Phase I studies: one single-dose study in healthy volunteers and two studies in cancer patients. Doses ranging from 10 mg to 260 mg have been evaluated as IV infusions (30-minute), subcutaneous bolus injections, or 24-hour subcutaneous infusions. Overall, ABT-510 has been well tolerated. A preliminary review of the 103 case report forms collected to date identified a total of 1306 adverse events. Ninety-one percent (1195/1306) of these events were considered to be mild or moderate in nature. Eighty-one percent (1052/1306) of these events were reported as not related to or probably not related to ABT-510. The most common adverse events, occurring in >10% of the patients, include injection site reaction, asthenia, abdominal pain, nausea, anorexia, pain, headache, vomiting, diarrhea, dyspnea, constipation, cough increased, back pain, peripheral edema, dizziness, insomnia, anemia, fever, sweating, chest pain, and rash.
Bevacizumab (Avastin) is a recombinant, humanized, monoclonal antibody directed against vascular endothelial growth factor (VEGF). This antibody blocks binding of the ligand VEGF with its receptor. VEGF is known to play a pivotal role in tumor angiogenesis and is a significant mitogenic stimulus for arterial, venous, and lymphatic endothelial cells. It can induce vascular permeability essential for extracellular remodeling and can serve as an endothelial cell survival factor. Phase III studies in 1st line colorectal cancer, 2nd line colorectal cancer, 1st line breast cancer, and 1st line non-small cell lung cancer have all demonstrated clinical benefit in terms of overall survival, progression free survival, and tumor response [Refs.. HH NEJM, A Sandler ASCO2005, L Miller ASCO 2005]. Efficacy has also been noted in phase II studies of renal cell, ovarian, glioma, and other tumor types. Side effects of bevacizumab include approximately 10-20% rate of hypertension requiring anti-hypertensives, uncommon aterial thromboembolilc events (myocardial infarction, unstable angina, cerebrovascular events, transient ischemic attacks, etc) with background rates increased from approximately 1-2% to 2-4%, and an approximately 1-2% risk of GI perforation.
Aside from this pivotal phase III colorectal cancer study, the dose of bevacizumab used for all other clinical trials has been 10mg/kg biweekly. A dose of bevacizumab at 10 mg/kg will be used in this study because it is consistent with the dosing used in most ongoing and planned bevacizumab studies and it has been shown, when compared to lower doses, to have comparable or improved activity.
Based on available data, it is a reasonable hypothesis that the combination of ABT-510 and bevacizumab will be a safe and potentially efficacious anti-angiogenesis strategy for the treatment of adult solid tumors. This combination may have utility directly or may prove useful when subsequently combined with other anti-angiogenic agents or standard chemotherapy regimens. An important aspect of this proposed study will be the inclusion of a clinical dermal wound angiogenesis assay which will help quantify and characterize the anti-angiogenic contribution of each agent in this combination. Therefore, this study is meant to provide important safety information on this combination, but also insight into the additive mechanistic effects of two agents with different mechanisms of action.
Type d'étude
Inscription (Réel)
Phase
- La phase 1
Contacts et emplacements
Lieux d'étude
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North Carolina
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Durham, North Carolina, États-Unis, 27710
- Duke University Medical Center
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- Histologically or cytologically confirmed diagnosis of advanced solid tumor refractory to standard therapy or for whom there is no standard therapy.
- Patients must not have had radiation therapy, hormonal therapy, biologic therapy or chemotherapy for cancer within the 21 days prior to study Day 1. Patients must not have had major surgery within the 28 days prior to study Day 1 or minor surgical procedures within the 14 days prior to study Day 1.
- Age > 18 years.
- ECOG performance status of 0-1 (see Appendix A).
Patients must have normal organ and marrow function as defined below:
- hemoglobin > 9.0g/dL; absolute neutrophil count > 1,500/μl; platelets > 100,000/μl; total bilirubin < 1.5 X upper limit of normal (ULN), AST(SGOT)/ALT(SGPT) < 2.5 X ULN, < 5 X ULN if known hepatic metastases; Urine protein:creatinine ratio < 1.0; creatinine clearance > 50 mL/min/1.73 m2; PT/INR/PTT < 1.2X ULN
- The effect of the investigational drugs on the developing human fetus is not known, but these drugs are likely to be embryo- and feto- toxic. Women of child-bearing potential must agree to use adequate contraception (either surgical sterilization; approved hormonal contraceptives such as birth control pills, Depo-Provera, or Lupron Depot; barrier methods such as condom or diaphragm along with spermicide; or an IUD). Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician and study PI immediately. Patients should be willing to use adequate contraception for three months following discontinuation of study drug.
- The patient is able to self-administer or has a caregiver who can reliably administer subcutaneous injections.
- Ability to understand and the willingness to sign a written informed consent document.
Exclusion Criteria:
- Patients who have had radiation therapy, hormonal therapy, biologic therapy, or chemotherapy for cancer within the 21 days prior to Day 1 of the study. Patients with prostate cancer who are already receiving androgen deprivation therapy (ie. leuprolide or goserelin) for longer than 3 months may continue on this therapy during the study.
- Patients who have received any other investigational agents within the 28 days prior to Day 1 of the study.
- Patients with known brain metastases should be excluded from this clinical trial because of their poor prognosis, the uncertain risk of this regimen on tumor bleeding, and because these patients often develop progressive neurological dysfunction that would confound the evaluation of neurologic and other adverse events. Patients with primary malignancies known to metastasize to the brain (such as lung cancer, breast cancer, renal cell cancer, , sarcoma, carcinoma of unknown primary, melanoma, and head and neck cancers) or patients with symptoms of brain metastases should have a brain MRI within 28 days of enrollment to confirm the absence of CNS metastases. Contrast CT is acceptable for patients who are unable to undergo a brain MRI.
- Patients with poorly controlled or clinically significant atherosclerotic vascular disease including CHF NY Heart Class > 2 (see Appendix B); angina requiring nitrates; MI, CVA, TIA, angioplasty, cardiac or vascular stenting in the past 6 months; or ventricular arrhythmia requiring medication.
- History of intolerance of prior treatment with bevacizumab or ABT-510. Prior treatment with these agents is otherwise permitted.
- Poorly controlled hypertension (> 160/100). Initiation or adjustment of BP medication is permitted prior to study entry provided that patient has 3 consecutive BP readings less than 150/90 mmHg each separated by a minimum of 24 hours. These readings should be collected prior to first skin biopsy.
- History of thrombosis within 3 months prior to enrollment or current use of therapeutic anticoagulation. Prophylactic low-dose anticoagulation for indwelling catheters is permitted; PT/PTT must be within normal limits.
- Use of antiplatelet agents other than aspirin (< 325 mg/day) or standard dose NSAIDs.
- Presence of bleeding diathesis, coagulopathy, or major bleeding event such as an acute GI bleed requiring transfusion or invasive intervention or hemoptysis greater than 1 tablespoon within 6 months prior to Day 1 of the study.
- Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, or psychiatric illness/social situations that would limit safety or compliance with study requirements. In addition, patients with non-healing wounds will not be eligible for this study.
- Pregnant women are excluded from this study because the investigational drugs have potential for teratogenic or abortifacient effects. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with these drugs, breastfeeding should be discontinued if the mother is treated on this study.
- Patients with squamous cell carcinoma of the lung.
- History of intra-abdominal fistula, gastrointestinal perforation or intr-abdominal abscess within 6 months prior to Day 1.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Répartition: N / A
- Modèle interventionnel: Affectation à un seul groupe
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
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Autre: 1
This trial employs a phase I design with a dose escalation stage (stage I) and an expansion stage (stage 2) to better describe the tolerability of this combination and the effect of this combination on several biomarkers.
In this second stage there will be two groups, each with ten patients, to better describe the tolerability of the bevacizumab/ABT-510 combination and the effect of this combination on several biomarkers.
The primary objective of this study is to estimate the MTD/recommended phase II dose regimen.
All other objectives are exploratory in nature.
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Autres noms:
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Délai |
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To determine the recommended Phase II dose for the combination of ABT-510 plus bevacizumab
Délai: Each Cycle (28-days)
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Each Cycle (28-days)
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Mesures de résultats secondaires
Mesure des résultats |
Délai |
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To collect preliminary data on the clinical activity of this combination (tumor response rate, progression-free survival, rate of stable disease > 6 months).
Délai: Each Cycle (28-days)
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Each Cycle (28-days)
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Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Herb Hurwitz, MD, Duke University
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Estimation)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- Pro00008797
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