1st-line Activity of Dovitinib and Correlation With Genetic Changes in RCC (DILIGENCE-1)

Dovitinib In 1st-Line Renal Cell Carcinoma, an Investigation Into Tumour GENe Status and Correlation With Efficacy - 1st Exploratory Study

The main purpose of this study is to find out how useful dovitinib is when given as the initial treatment to participants with advanced kidney cancer, that has spread to other parts of the body. The usefulness of dovitinib will be assessed by: how long the disease is controlled while participants are receiving the drug, the proportion of participants who get a reduction in the size of their tumours and how long participants live (both while on dovitinib and on any subsequent therapy they may receive).

If participants have secondary disease in the bones, the study will evaluate how useful dovitinib is in controlling this site of disease. In addition, this study will look for changes in the genetic makeup of tumour cells and see if some of these changes are associated with a benefit from dovitinib. The study will also compare and contrast the genetic changes in the primary tumour cells with cells from secondary tumour specimens, and with cells from tumour specimens taken if a participant's disease has worsened. The purpose of the latter is to identify possible ways in which the tumour becomes resistant to the study drug.

Study Overview

• Status: Unknown
• Conditions: Clear Cell Renal Cell Carcinoma
• Intervention / Treatment: Drug: Dovitinib

Detailed Description

The purpose of this prospective, single centre, non-randomised, open-label, phase II study will evaluate the activity of dovitinib in the treatment naïve population of patients with advanced RCC.

Background: Prior to the middle of last decade, the only systemic therapy for patients with advanced RCC was immunotherapy (interleukin-2 and interferon-alpha) with limited effectiveness and a multitude of side-effects. Since 2006, there have been 6 targeted therapies that have been FDA-registered for the treatment of advanced RCC; the anti-VEGFR tyrosine kinase inhibitors (sunitinib, sorafenib and pazopanib), the anti-VEGF antibody bevacizumab (with interferon-alpha) and the mTOR inhibitors (everolimus and temsirolimus). These treatments have significantly advanced outcomes for patients with this disease but unfortunately they do not represent cures. The median overall survival for patients treated with a standard first-line therapy (sunitinib) is just over 2 years and the median PFS for subjects receiving this agent is only 11 months. This means that the typical time it takes for subjects to develop resistance to standard first-line tyrosine kinase inhibitor (TKI) treatment, as evidenced by significant tumour growth on imaging, is under 1 year.

Despite the recent rapid advancements in the treatment options for subjects with advanced RCC, there is still an unmet need for more effective therapeutic options for patients with this disease so as to improve survival and make steps towards the ultimate treatment aim for patients with metastatic disease - cure. Available data suggests that dovitinib is a very active agent in metastatic RCC. If it has efficacy in the heavily pre-treated RCC population, one would expect it to be considerably more active when it is moved forward into the first-line setting.

Dovitinib is a broad-targeted receptor Tyrosine Kinase Inhibitor (TKI) primarily active against three receptors that mediate tumour growth and survival: vascular endothelial growth factor receptor (VEGFR), platelet-derived growth factor receptor (PDGFR) and fibroblast growth factor receptor (FGFR). A distinguishing feature of dovitinib (compared to other anti-VEGFR TKI's) is its FGFR inhibition. Up-regulation of the fibroblast growth factor receptor 1 (FGFR1) pathway has been demonstrated in metastatic RCC and is a postulated mechanism of resistance to anti-VEGFR therapies. This is thought to be one of the reasons why dovitinib has activity in subjects treated with prior anti-VEGFR therapies. If we move the FGFR inhibition forward into the first-line setting (by using dovitinib) we hope to be able prevent or delay the development of resistance acquired through FGFR up-regulation. We hope this may allow subjects to remain on first-line therapy for much longer and in doing so improve survival and outcomes for this group of patients.

Dovitinib has been studied in heavily pre-treated subjects with metastatic RCC, and in these phase I/II studies it looks very active. If it has efficacy in the heavily pre-treated RCC population, it is possible it would be more active when it is moved forward in to the first-line setting.

While we have good prognostic markers to risk-stratify subjects with RCC, there is a lack of predictive markers to guide us as to which patients are best served with each of the different agents available for use. It is therefore imperative that drug development studies in this disease have companion biomarker analysis to identify potentially useful predictive biomarkers for future research. This study also aims to explore (using FISH) the amplification/deletion status of range of genes-of-interest, selected for their relevance to the biology of RCC and the mechanism-of-action of dovitinib. Amplification/deletion of these genes will be further validated using DNA sequencing. The status of these genes-of-interest will be correlated with outcomes of these subjects treated with dovitinib.

The hypothesis of this study is that dovitinib will demonstrate anti-tumour activity when administered to subjects with advanced RCC in the first-line setting and that this activity will correlate with FGFR gene amplification status.

The primary objective is to evaluate the activity of dovitinib in the treatment naïve population of patients with advanced RCC.

Secondary Objectives:

• To determine the gene amplification status for FGFR-1,-2,-3 in this patient population
• To measure the strength of the correlation between measures of clinical efficacy and FGFR gene amplification status
• To further evaluate safety

Exploratory Objectives:

• To assess for amplifications/deletions for genes related to RCC biology in this group of subjects treated with dovitinib.
• To correlate gene amplification status with DNA gene sequence.
• To evaluate differences in tumour gene status between primary and metastatic samples from same subject and again on post-treatment biopsy to elucidate mechanisms of resistance to dovitinib.
• To evaluate effects of dovitinib on bone metastases and pain.

Investigational treatment: Thirty patients from the greater Auckland region will be treated with dovitinib (500 mg p.o. o.d., 5 days on/2 days off) until disease progression, unacceptable toxicity, patient withdrawal or death.

The primary analysis will be performed when 20 progression and/or death events have occurred. No interim efficacy analysis is planned for this study. However, an independent Data Monitoring Committee (DMC) will review data collection (including analysing the adverse event information) and will meet at specified time points during the study.

Visit schedule: Patients will attend clinic visits every 3 weeks while on treatment. Tumour response assessments will occur every 9 weeks until week 54, then every 12 weeks thereafter until disease progression (estimated median time to disease progression = 16 months). Once all patients have completed study treatment, patients will continue to be followed up 3-monthly until approximately 2 months after 20 death events have occurred.

For each patient there will be three separate phases in the study: pre-treatment (screening & baseline), treatment and follow-up.

Pre-treatment phase (Screening/Baseline): The patient must provide a signed informed consent form (ICF) prior to any study related procedure. A screening period of 28 days is allowed to assess eligibility. Radiologic evaluation (CT of the head, chest, abdomen and pelvis) and baseline tumour measurement using RECIST v1.1 will be performed. Other screening and baseline assessments include ECG & echocardiogram to assess cardiac function, performance status assessment (ECOG & WHO), physical examination (including the buccal cavity), height, weight & vital signs. Laboratory investigations include haematology, chemistry, amylase, lipase, serum lipid profile, coagulation, urinalysis, thyroid function, cardiac enzymes and pregnancy test (if applicable). Disease specific information, general medical information including medical history, concomitant medications, prognostic group according to Heng criteria and demographic data will also be collected.

Treatment phase: This study does not have a fixed treatment duration, as patients will continue therapy until disease progression, intolerable toxicity or withdrawal. Following study inclusion and initiation of study treatment, the patient should visit the site on day 1, 8 and 15 during cycle 1, then day 1 of every subsequent cycle. Patients will have their first dose of study treatment on Day 1, Cycle 1. A study cycle is defined as a period of 21 days.

Tumour response will be evaluated every 3 cycles after registration until week 54, then every 4 cycles until documented disease progression. ECOG performance status will be assessed on day 1 of every cycle. Safety assessments are routinely performed including collection of adverse events (AEs), Serious Adverse Events (SAEs), concomitant medications, vital signs, physical examination, weight, haematological and biochemistry assessments, urinalysis, thyroid function and cardiac enzymes. ECG, amylase, lipase, serum lipids and coagulation will be measured if clinically indicated. An echocardiogram will be performed at weeks 12 and 24, and as clinically indicated. Plasma for storage will be collected on Day 1 of Cycles 1 and 3. Participants with bone metastases will have plasma collected for C-telopeptide testing on day 1 of weeks 1, 2 and 13, and will complete a Quality of Life questionnaire (FACT-BP) at 4 time points: on day 1 of weeks1, 2, 4 and 13.

The End of Treatment (EOT) visit will take place approximately 7 days after the last dose of dovitinib. At this visit the following assessments will be performed and the following data collected: physical examination, ECOG performance status, weight, vital signs, adverse events, concomitant medications, antineoplastic therapies, haematology, biochemistry, amylase and lipase measurements.

Safety follow-up: All patients who discontinue study treatment will have a safety follow-up visit within 30 days of the last dose of dovitinib. Safety assessments will include collection of AEs, SAEs, vital signs, concomitant medications and any new antineoplastic therapies. Patients who progress will be invited to provide an (optional) additional biopsy sample of their tumour, at least 10 days after the last dose of dovitinib, but before any new anticancer therapies are initiated.

Efficacy follow-up: Patients who discontinue the study treatment for reasons other than progression will continue to have radiologic assessments, using the same schedule as for patients who remain on treatment, until documented disease progression.

Survival follow-up: Patients who have discontinued study treatment will be followed-up for survival every 3 months by clinical visits or telephone call until death occurs, the patient is lost to follow-up, or withdraws consent for follow-up for survival. Further treatment will be at the discretion of the investigator.

Statistical Methods: All data will be presented descriptively as means, medians or proportions. Progression free and overall survival from the first dose of dovitinib until disease progression or death will be determined using the method of Kaplan-Meier. The correlation between PFS, OS and baseline biomarker status as well as FGFR gene amplification status will be measured using Spearman's rho. Generalized estimating equations (GEE) for repeated measures will also be used to test the significance of changes in biomarker amplification status relative to baseline. Ordinal logistic regression analysis using a repeated measures structure will be applied to compare bone pain control over the treatment period relative to baseline.

Sample Size Calculation and Expected Duration: The response rate (RR) reported for sunitinib, when studied in a phase III trial versus interferon in the first-line setting was approximately 31%, with a 95%CI ranging from 26 to 36% (Motzer, NEJM 356: 115, 2007). The target sample size in this phase II study is 30, which was based on the assumption that the RR for dovitinib would fall within the range of sunitinib. With such a sample size, the prevalence of dovitinib RR using RECIST 1.1 will be measured with a precision that extends to 15 percentage points, with a 95% probability.

• Study Type: Interventional
• Enrollment (Anticipated): 30
• Phase: Phase 2

Contacts and Locations

Study Locations

• New Zealand
  • Auckland, New Zealand, 1142
    • Auckland Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (ADULT, OLDER_ADULT)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Advanced renal cell (clear cell) carcinoma confirmed histologically, including either distant metastases or locally advanced disease that is not resectable or potentially resectable following response. Sarcomatoid change is allowed if clear cell predominant. Histological variants, papillary, chromophobe and collecting duct carcinoma are not allowed.
• Availability of FFPE tissue for gene status analysis. If unavailable, an image-guided biopsy of a metastatic disease site is required.
• Evaluable disease by RECIST 1.1 criteria
• ECOG (WHO) performance status 0 or 1
• Age ≥ 18 years
• Absolute neutrophil count ≥ 1.5 x 109/L; platelets ≥ 100 x 109/L; haemoglobin > 9 g/dL; serum total bilirubin ≤ 1.5 x ULN; ALT and AST ≤ 3.0 x ULN; serum creatinine ≤ 1.5 x ULN or creatinine clearance >35 ml/min by Cockcroft and Gault.

Exclusion Criteria:

• Uncontrolled brain metastases. For know brain metastases, definitive treatment with either surgery, stereotactic radiotherapy or whole brain radiotherapy is required. Patients must be neurologically stable for > 4 weeks after CNS treatment ends, and either be off corticosteroids or receiving a low daily dose.
• Another primary malignancy within 3 years prior to starting study treatment, except for adequately treated basal cell carcinoma, squamous cell carcinoma or other non-melanomatous skin cancer, or in-situ carcinoma of the uterine cervix. If another primary tumour was noted within this period, a metastatic disease site biopsy is required to confirm renal origin.
• Prior systemic anticancer treatment for renal carcinoma. Prior bisphosphonates are allowed.
• Radiotherapy ≤ 4 weeks prior to starting the study drug or non-recovery from related toxicities. Palliative radiotherapy for bone lesions ≤ 2 weeks prior to starting study drug is allowed.
• Major surgery (e.g. intra-thoracic, intra-abdominal or intra-pelvic) ≤ 4 weeks prior to starting study treatment or non-recovery from surgical side effects.
• History of pulmonary embolism or untreated deep venous thrombosis within the past 6 months. If a history of PE or DVT within the past 6 months is present, patients must be clinically stable on appropriate doses of anticoagulation as per thrombosis specialist advice.
• Impaired cardiac function or clinically significant cardiac diseases, including history of serious uncontrolled ventricular arrhythmias; clinically significant resting bradycardia; LVEF assessed by 2-D echocardiogram < 50% or lower limit of normal (whichever is higher) or multiple gated acquisition scan < 45% or lower limit of normal (whichever is higher). Within 6 months prior to starting study drug: myocardial infarction, severe/unstable angina, coronary artery bypass graft, congestive heart failure, cerebrovascular accident, transient ischemic attack; uncontrolled hypertension defined by a SBP ≥ 160 mm Hg and/or DBP ≥ 90 mm Hg, with or without anti-hypertensive medication. Initiation or adjustment of antihypertensive medication is allowed before study entry.
• Impaired gastrointestinal function or GI disease that may significantly alter dovitinib absorption, e.g. ulcerative diseases, uncontrolled nausea, vomiting, diarrhoea, malabsorption syndrome, or small bowel resection.
• Cirrhosis, chronic active hepatitis or chronic persistent hepatitis
• Known diagnosis of human immunodeficiency virus infection (testing is not mandatory)
• Current full dose anticoagulation treatment with therapeutic doses of warfarin, dabigatran or anti-platelet therapy. Treatment with ≤ 100mg acetylsalicyclic acid daily is allowed as are therapeutic or prophylactic doses of low molecular weight heparin, provided there is no recent evidence of bleeding.
• Other concurrent severe and/or uncontrolled concomitant medical conditions (e.g. infection, diabetes) that could cause unacceptable safety risks or compromise protocol compliance.
• Pregnant or breast-feeding women
• Women of child-bearing potential or fertile males not using effective contraception.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: TREATMENT
• Allocation: NA
• Interventional Model: SINGLE_GROUP
• Masking: NONE

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

EXPERIMENTAL: Dovitinib; Dovitinib 500 mg taken orally once daily 5 days on / 2 days off, until disease progression

Drug: Dovitinib; Patients will be treated with dovitinib (500 mg orally, once daily 5 days on/2 days off) until disease progression, intolerability, patient refusal, death or study drug discontinuation for any other reason. Dovitinib should be ingested at least 1 hour prior to a meal or at least 2 hours following a meal at approximately the same time each day. If patients cannot tolerate the protocol-specified dosing schedule, dose reductions or treatment interruptions are permitted. When necessary, dovitinib may be reduced to 400 mg for 5 days on/2 days off. If an additional dose reduction is required, dovitinib may be reduced to 300 mg dose 5 days on/2 days off. Once dose is reduced due to an adverse event, it cannot be re-escalated. Patients are allowed only 2 dose reductions.; Other Names: TKI258

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Progression-free survival (PFS) as assessed by RECIST 1.1.	Description: Subjects will undergo baseline radiology assessment with a CT scan of the chest, abdomen, pelvis and head within 4 weeks of registration. Thereafter subjects will then undergo CT scans of the chest, abdomen and pelvis (where possible using the same technique) every 9 weeks until week 54. From week 54 onward, subjects will undergo CT scans of the chest, abdomen and pelvis every 12 weeks until disease progression. Tumour responses will be evaluated using RECIST 1.1. Confirmation of responses (PR/CR) with repeat CT is not required as the primary end-point is PFS. CT will be the only imaging modality required for subjects on study. The RECIST 1.1 assessments will be done in Auckland by one of the members of the Tumour Response EvAluation Team (TREAT) who have expertise in RECIST reporting.	From baseline until documented disease progression, estimated to be up to 65 weeks

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Response rate (RR) using RECIST 1.1.	Assessed every 9 weeks until week 54, then every 12 weeks until disease progression.	Change from baseline until disease progression, estimated to be up to 65 weeks
Proportion of subjects who are FGFR-1,-2,-3 amplified using gene analysis by Fluorescent in-situ hybridization		Baseline
Efficacy (PFS, RR, OS) by FGFR gene amplification status as measured by Spearman's rho correlation coefficient	Assessed every 9 weeks until week 54, then every 12 weeks until disease progression.	Baseline until documented disease progression, estimated to be up to 65 weeks
Safety profile of dovitinib (specifically in this first-line patient population) using NCI CTCAE v4.0	Also assessed at 12 and 24 months	8 months
Safety profile of dovitinib (specifically in this first-line patient population) using NCI CTCAE v4.0	Assessed weekly for weeks 1-3, then every 3 weeks until disease progression.	Baseline until documented disease progression, estimated to be up to 65 weeks
Proportion of subjects who are FGFR-1,-2,-3 amplified using gene analysis by Fluorescent in-situ hybridization	Also assessed at 8 and 24 months	Disease progression, estimated to be up to 65 weeks.
Safety profile of dovitinib (specifically in this first-line patient population) using NCI CTCAE v4.0		12 months
Safety profile of dovitinib (specifically in this first-line patient population) using NCI CTCAE v4.0	Also assessed at 8 and 12 months	24 months
Safety profile of dovitinib (specifically in this first-line patient population) using NCI CTCAE v4.0	Assessed 3-monthly for up to 2 years	From documented disease progression up to 2 years.

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
Exploratory objective outcome: Assessment of gene amplifications/deletions related to RCC biology	Proportion of subjects whose tumours have deletion of; VHL, FHIT, PTEN and amplification of; PI3KCA, AKT, MYC, EGFR, PDGFR/CSF-1R, PDGF, imbalance of 1p1q and the correlation of the gene status with clinical outcomes	Baseline
Exploratory objective outcome: Correlation of gene amplification status with DNA gene sequence	• Correlation between gene amplification status by FISH and DNA sequence using SequenomTM, OncoCartaTM Panel v 1.0	Baseline
Exploratory objective outcome: Evaluation of differences in tumour gene status between primary and metastatic samples from same subject and again on post-treatment biopsy to elucidate mechanisms of resistance to dovitinib	Discordance in genes-of-interest between and primary and metastatic tumour samples as well as with post-study tumour biopsy (upon progression)	Baseline
Exploratory endpoint outcome: Effects of dovitinib on bone metastases and pain	Change in FACT-BP score, CTX levels and opioid usage in subjects with bone metastases. Also assessed at week 13.	Change from baseline until week 1
Exploratory objective outcome: Assessment of gene amplifications/deletions related to RCC biology	Proportion of subjects whose tumours have deletion of; VHL, FHIT, PTEN and amplification of; PI3KCA, AKT, MYC, EGFR, PDGFR/CSF-1R, PDGF, imbalance of 1p1q and the correlation of the gene status with clinical outcomes	Disease progression, estimated to be up to 65 weeks
Exploratory objective outcome: Correlation of gene amplification status with DNA gene sequence	• Correlation between gene amplification status by FISH and DNA sequence using SequenomTM, OncoCartaTM Panel v 1.0	Disease progression, estimated to be up to 65 weeks
Exploratory objective outcome: Evaluation of differences in tumour gene status between primary and metastatic samples from same subject and again on post-treatment biopsy to elucidate mechanisms of resistance to dovitinib	Discordance in genes-of-interest between and primary and metastatic tumour samples as well as with post-study tumour biopsy (upon progression)	Disease progression, estimated to be up to 65 weeks
Exploratory endpoint outcome: Effects of dovitinib on bone metastases and pain	Change in FACT-BP score, CTX levels and opioid usage in subjects with bone metastases. Also assessed at week 1.	Change from baseline until week 13

Collaborators and Investigators

• Sponsor: Auckland District Health Board
• Collaborators: Novartis; University of Auckland, New Zealand; IGENZ, Ltd., Auckland
• Investigators: Study Chair: Reuben Broom, MBChB, FRACP, Auckland Hospital

Publications and helpful links

General Publications

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Study record dates

Study Major Dates

• Study Start: March 1, 2012
• Primary Completion (ANTICIPATED): June 1, 2015
• Study Completion (ANTICIPATED): June 1, 2015

Study Registration Dates

• First Submitted: January 8, 2013
• First Submitted That Met QC Criteria: February 12, 2013
• First Posted (ESTIMATE): February 15, 2013

Study Record Updates

• Last Update Posted (ESTIMATE): February 3, 2015
• Last Update Submitted That Met QC Criteria: February 1, 2015
• Last Verified: February 1, 2015

More Information

Terms related to this study

• Keywords: Cancer; Kidney; Renal cell; Metastatic carcinoma
• Additional Relevant MeSH Terms: Neoplasms by Histologic Type; Neoplasms; Urologic Neoplasms; Urogenital Neoplasms; Neoplasms by Site; Kidney Diseases; Urologic Diseases; Adenocarcinoma; Neoplasms, Glandular and Epithelial; Kidney Neoplasms; Carcinoma, Renal Cell; Carcinoma
• Other Study ID Numbers: CTKI258AAU02T; ACTRN12612000140853 (REGISTRY: Australian Clinical Trials Registry)