The purpose of this study is to improve survival of patients with recurrent or metastatic Adenoid Cystic Carcinoma (ACC). This study will test the efficacy of the investigational drug, TKI258, in treating ACC.
Adenoid cystic carcinoma (ACC) is an uncommon malignancy that arises in secretory glands. The most common sites for the disease are the major and minor salivary glands but these tumors may also arise in the nasal cavity, lacrimal gland, tracheobronchial tree, breast or vulva. The mainstay of treatment for localized ACC is surgical resection often followed by post-operative radiotherapy. Although this leads to an initially high rate of local control, the 5-year disease-free survival rate is 50-75%. In addition, a significant proportion of the patients develop distant metastases, most frequently in the lung. Compared to other malignancies, ACC tends to grow more slowly. Thus, patients often do well in the short-term but long-term prognosis remains guarded and most succumb to the disease within 10-15 years. To date, systemic therapies have proven to be largely ineffective against recurrent and metastatic ACC. Dovitinib is a broad-targeted-profiled RTK inhibitor active against these three RTKs (VEGF, FGF and PDGF) involved in tumor cell growth. Based on its potency as an inhibitor of these RTKs both in vitro and in vivo, and the compound's oral availability, several clinical trials of dovitinib are underway. This phase II trial will test the hypothesis that dovitinib will be active against this disease. The rationale is based on pre-clinical studies that suggest that dovitinib suppresses tumor growth by blocking constitutive signaling of the fibroblast growth factor receptor-1 (FGFR1) and animal studies in which the drug proved to be active against primary ACC xenografts.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
35
500 mg orally on a 5-days on/2-days off schedule each week of a 4-week (28-day) cycle. Treatment will continue until progression as defined by RECIST, unacceptable adverse events, patient refusal to continue on study, or physician's decision to withdraw the patient.
University of Virginia Health System
Charlottesville, Virginia, United States
Determine the Objective Tumor Response Rate Following Treatment With TKI258
Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by cross sectional imaging: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.
Time frame: From enrollment up to 36months
Estimate the Progression-free Survival Following Treatment With TKI258.
PFS is measured from enrollment up to first progression event (median= 8.2 months). 1 patient was not evaluable for response evaluation due to withdrawal prior to first interval scan.
Time frame: From enrollment up to first progression event
The Adverse Event Profile of TKI258 in Subjects Who Have ACC.
Adverse events were collected per CTCAE v3.
Time frame: From enrollment up to 36months
Quality of Life Measurements During TKI258 Treatment.
Participants were asked to fill out FACT-G (Functional Assessment of Chronic Illness Therapy) quality of life questionnaires at baseline and off-treatment visit (average 8.2 months). This scale measures physical well-being, social/family well-being, emotional well-being, and functional well-being on a 5 point Likert scale. Scores range from 0 to 4 on a Likert scale (0=not at all, 1=a little bit, 2=somewhat, 3=quite a bit, 4=very much). The raw score range for each subscale is 0-28 points and the total score range is 0-108. Higher values represent higher well-being in each functional subscale. The mean difference from baseline to off-study assessment are presented with range from minimum to maximum.
Time frame: Baseline FACT-G questionnaire and FACT-G questionnaire at time of off-treatment visit (average of 8.2 months)
Feasibility of Measuring and Analyzing TKI258 Induced Changes in the Growth Rate of Adenoid Cystic Carcinomas.
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Collect descriptive data about the change in tumor growth rates as measured by the change point method. Tumor growth rate is defined as the estimated slope (slope is then defined as Y1-Y0 divided by X1-X0) from tumor measurements taken prior to treatment (TG0). TG0 is compared with TG1 (tumor growth rate) as defined by the estimated slope after treatment (comparing time 0 to 4mo). Each patient's tumor growth profile is allowed one slope measured from pre-study (-6 months to time 0), and the other slope (time 0 to time 4 months). Change between those 2 slopes is reported. Slope is measured on a plot of time on the x axis and sum of longest diameters of RECIST target lesions on the y axis. The slope of the tumor growth curve (plotted as sum of longest diameters vs month since starting dovitinib) is measured at time points -6mo, 0, and 4 months. Pre-study scans (-6mo) were required of all patients and on-study scans were at times, 0, 2, 4months, 8months, 12mo, 16mo.
Time frame: All patients provided pre-study scans with target lesions. The target lesions from pre-study scans were compared to the target lesions on the baseline scan at time 0. TG0 was measured from -6 months to time 0. TG1 is defined as time 0 to time 4 months.
Expression of MYB Protein and Chromosomal Rearrangements of the MYB Locus
Assess archival tumor samples for the expression of MYB protein and chromosomal rearrangements of the MYB locus.
Time frame: Anticipated Reporting Date 2020