A Targeted Phase I/II Trial of ZD6474 (Vandetanib; ZACTIMA) Plus the Proteasome Inhibitor, Bortezomib (Velcade ), in Adults With Solid Tumors With a Focus on Hereditary or Sporadic, Locally Advanced or Metastatic Medullary Thyroid Cancer (MTC)

Stopped early · Phase 1/Phase 2

Conditions studied: Medullary Thyroid Carcinoma

In brief

Background: * The combination of anti-cancer drugs vandetanib (given orally) and bortezomib (given intravenously) has not been used in humans. However, both drugs have been studied separately. Bortezomib has been approved by the U.S. Food and Drug Administration (FDA) for treating multiple myeloma and mantle cell lymphoma, while vandetanib is still under investigation pending FDA approval. * Both bortezomib and vandetanib are under investigation for use in treating certain kinds of cancer. Researchers hope that the combination of these two drugs will be more effective than either of them alone. Objectives: * To determine if the combination of vandetanib and bortezomib will decrease the amount of the cancer and, if it does, to determine how long the response will last. * To determine any side effects that may occur with this combination of treatments. * To determine what doses of each drug are well tolerated and safe when given together. * To study genetic mutations in tumors to better understand how tumors grow and how these drugs interact with the tumor. Eligibility: * Patients 18 years of age and older with solid tumors that cannot be surgically removed and have either recurred or shown further growth. The tumor(s) must be able to be evaluated by X-ray, MRI (magnetic resonance imaging), and CT (computerized tomography) scanning. * Patients who have been diagnosed with medullary thyroid cancer will participate in Phase II of the study. Design: * Tumor samples may be taken at the start of the study for research purposes. * Phase I: Patient groups will be treated on an outpatient basis with vandetanib and bortezomib, given at increasing doses over four different levels to determine the maximum tolerated dose calculated by height and weight: * Doses will be given on Days 1, 4, 8, and 11 for each 28-day cycle. * Two additional levels (Level 1A and Level 1B) may be included in the study, depending on side effects at various levels. * Phase II: Patients with medullary thyroid cancer will be divided into two groups, with two patients in Group A for every one patient in Group B. No placebo will be involved in this study. * Group A: Patients will be treated with vandetanib and bortezomib at the maximally tolerated dose of the Phase I study. * Group B: Patients will be treated with bortezomib alone. * A second tumor sample may be taken. In patients with thyroid cancer, the second biopsy will be done at the 6-week evaluation (approximately 42 days after beginning). In patients with cancer other than thyroid cancer, the second biopsy will be obtained on Day 4 of either the first or second cycle, after the bortezomib infusion. * The effects of the drugs will be studied through blood samples and CT scans taken during and after various drug cycles.

Key facts

Study ID: NCT00923247
Run by: National Cancer Institute (NCI)
People needed: 22
Starts: 2009-02-19
Expected to finish: 2016-12-09
Last updated by the study team: 2018-11-29

Who can join

Age: 18 and older, up to 80. Sex: any. Healthy volunteers: not accepted.

You may not qualify if…

Patients with cancer potentially curable by surgical excision alone or patients who have not received therapy that might be considered standard and potentially curable.
Evidence of severe or uncontrolled systemic disease or any concurrent condition including, but not limited to symptomatic congestive heart failure, unstable angina pectoris, unstable hypertension, seizure disorder, or psychiatric illness which in the Investigators opinion makes it undesirable for the patient to participate in the trial or which would jeopardize compliance with the protocol.
Untreated brain metastases (or local treatment of brain metastases within the last 6 months) due to the poor prognosis of these patients and difficulty ascertaining the cause of neurologic toxicities.
During Phase II enrollment: Prior therapy with vandetanib.
Women who are currently pregnant or breast-feeding, due to the possible adverse effects on the developing fetus and infants.
The presence of a second malignancy within the last 2 years, other than squamous cell carcinoma of the skin or in situ cervical cancer because it will complicate the primary objective of the study. Cancer survivors who have been free of disease for at least two years can be enrolled in this study.
There is one other exception to the exclusion of secondary malignancies: multiple endocrine neoplasia type 2 (MEN2) patients with concurrent medullary thyroid cancer and pheochromocytoma may be enrolled at the discretion of the Principal Investigator.
Patients with evidence of a bleeding diathesis that cannot be corrected with standard therapy or factor replacement.
Any unresolved toxicity greater than CTCAE grade 1 (except alopecia) from previous anticancer therapy. Patients with grade 1 neuropathy will be evaluated on a case by case basis for entry into study. Baseline conditions will be taken into consideration.
Major surgery within 4 weeks, or incompletely healed surgical incision before starting study therapy.
Clinically significant cardiovascular event (e.g. myocardial infarction, superior vena cava syndrome (SVC), New York Heart Association (NYHA) classification of heart disease greater than or equal to 2 within 3 months before entry; or presence of cardiac disease that, in the opinion of the Investigator, increases the risk of ventricular arrhythmia.
History of arrhythmia (multifocal premature ventricular contractions PVCs, bigeminy, trigeminy, ventricular tachycardia, or uncontrolled atrial fibrillation) which is symptomatic or requires treatment (CTCAE grade 3) or asymptomatic sustained ventricular tachycardia. Atrial fibrillation controlled on medication is not excluded.
History (within the last 6 months) or presence of stroke/cerebrovascular accident.
Corrected QT interval (QTc) prolongation with other medications. If the medication can be discontinued and an alternative medication started that does not cause QTc prolongation, the patient would be eligible. If no alternative medication is available and the medication cannot be discontinued for medical reasons, then the patient would not be eligible.
Congenital long Q wave, T wave (QT) syndrome, or 1st degree relative with unexplained sudden death under 40 years of age.
Presence of left bundle branch block (LBBB).
QTc with Bazett's correction that is not measurable, or greater than or equal to 480 msec on screening electrocardiogram (ECG). (Note: If a patient has a QTc interval greater than or equal to 480 msec on screening ECG, the screen ECG may be repeated twice (at least 24 hours apart). The average QTc from the three screening ECGs must be less than 480 msec in order for the patient to be eligible for the study). Patients who are receiving a drug that has a risk of QTc prolongation are excluded if QTc is greater than or equal to 460 msec.
Concurrent medication that may cause QTc prolongation or induce Torsades de Pointes: Those medications in Group One will not be allowed. Those medications in Group Two will be allowed.
Hypertension not controlled by medical therapy (systolic blood pressure greater than 160 mm Hg or diastolic blood pressure greater than 100 mm Hg)
Currently active (uncontrolled) diarrhea greater than or equal to CTCAE Grade 2 that may affect the ability of the patient to absorb the vandetanib or tolerate diarrhea. Antidiarrhea medications are allowed in patients with chronic diarrhea.
Concomitant medications that are potent inducers (rifampicin, rifabutin, phenytoin, carbamazepine, phenobarbital and St. John's Wort) of cytochrome P450 3A4 (CYP3A4) function.
Major surgery within 4-weeks, or incompletely healed surgical incision before starting study medications. Biopsies, port placements, and dental work are examples of acceptable (nonmajor) surgery within the 4 week time frame.
Inability to take oral medications for whatever reason.

Where it is running

National Institutes of Health Clinical Center, 9000 Rockville Pike — Bethesda, Maryland, United States

Full record on ClinicalTrials.gov

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