1. A phase 2 study of TMX-101, intravesical imiquimod, for the treatment of carcinoma in situ bladder cancer.
作者: Nicholas M Donin.;Karim Chamie.;Andrew T Lenis.;Allan J Pantuck.;Madhu Reddy.;Dana Kivlin.;Johanna Holldack.;Rafaella Pozzi.;Gil Hakim.;Lawrence I Karsh.;Donald L Lamm.;Laurence H Belkoff.;Arie S Belldegrun.;Stuart Holden.;Neal Shore.
来源: Urol Oncol. 2017年35卷2期39.e1-39.e7页
Imiquimod is a toll-like receptor agonist with proven antitumor activity as a topical treatment for skin cancer. TMX-101 (Vesimune) is a novel liquid formulation of imiquimod optimized for intravesical delivery. The agent demonstrated safety as an intravesical treatment for non-muscle-invasive bladder cancer in a phase 1 clinical trial. We report the results of a phase 2 prospective multicenter clinical trial assessing the safety and activity of TMX-101.
2. Heterogeneity of circulating tumor cells (CTCs) in patients with recurrent small cell lung cancer (SCLC) treated with pazopanib.
作者: I Messaritakis.;E Politaki.;M Plataki.;V Karavassilis.;N Kentepozidis.;F Koinis.;E Samantas.;V Georgoulias.;A Kotsakis.
来源: Lung Cancer. 2017年104卷16-23页
To investigate the effect of pazopanib on different CTCs subpopulations in patients with recurrent SCLC and evaluate their clinical relevance.
3. Nivolumab-induced interstitial lung disease analysis of two phase II studies patients with recurrent or advanced non-small-cell lung cancer.
作者: Terufumi Kato.;Noriyuki Masuda.;Yoichi Nakanishi.;Masashi Takahashi.;Toyoaki Hida.;Hiroshi Sakai.;Shinji Atagi.;Shiro Fujita.;Hiroshi Tanaka.;Koji Takeda.;Miyako Satouchi.;Yoshinobu Namba.;Tomohide Tamura.
来源: Lung Cancer. 2017年104卷111-118页
Drug-induced interstitial lung disease (ILD) is often associated with high mortality; however it is difficult to predict and manage. we examined the clinical findings and imaging characteristics of nivolumab induced ILD reported in the two phase II studies patients with recurrent or advanced non-small-cell lung cancer.
4. A phase 2 study of alisertib (MLN8237) in recurrent or persistent uterine leiomyosarcoma: An NRG Oncology/Gynecologic Oncology Group study 0231D.
作者: David M Hyman.;Michael W Sill.;Heather A Lankes.;Richard Piekarz.;Mark S Shahin.;Mildred R Ridgway.;Floor Backes.;Meaghen E Tenney.;Cara A Mathews.;James S Hoffman.;Carol Aghajanian.;Martee L Hensley.
来源: Gynecol Oncol. 2017年144卷1期96-100页
This two-stage Phase II study assessed the activity of single agent alisertib in patients with recurrent/persistent uterine leiomyosarcoma (uLMS).
5. Transdermal granisetron for the prevention of nausea and vomiting following moderately or highly emetogenic chemotherapy in Chinese patients: a randomized, double-blind, phase III study.
作者: Liu-Qing Yang.;Xin-Chen Sun.;Shu-Kui Qin.;Ying-Xia Chen.;He-Long Zhang.;Ying Cheng.;Zhen-Dong Chen.;Jian-Hua Shi.;Qiong Wu.;Yu-Xian Bai.;Bao-Hui Han.;Wei Liu.;Xue-Nong Ouyang.;Ji-Wei Liu.;Zhi-Hui Zhang.;Yong-Qiang Li.;Jian-Ming Xu.;Shi-Ying Yu.
来源: Chin Clin Oncol. 2016年5卷6期79页
The granisetron transdermal delivery system (GTDS) has been demonstrated effectiveness in the control of chemotherapy-induced nausea and vomiting (CINV) in previous studies. This is the first phase III study to evaluate the efficacy and tolerability of GTDS in patients receiving moderately emetogenic chemotherapy (MEC) or highly emetogenic chemotherapy (HEC) in China.
6. Fatigue During and After Breast Cancer Therapy-A Prospective Study.
作者: Kristin V Reinertsen.;Olav Engebraaten.;Jon H Loge.;Milada Cvancarova.;Bjørn Naume.;Erik Wist.;Hege Edvardsen.;Elisabeth Wille.;Trine Bjøro.;Cecilie E Kiserud.
来源: J Pain Symptom Manage. 2017年53卷3期551-560页
Chronic fatigue (CF) in breast cancer (BC) survivors is multifactorial and may be caused by immune activation triggered by BC or its treatment. In the Neoadjuvant Avastin in Breast Cancer study, BC patients received neoadjuvant chemotherapy (FEC100→taxane) ± bevacizumab, a monoclonal antibody with fatigue as a potential side effect.
7. Safety profile of temsirolimus in patients with metastatic renal cell carcinoma.
作者: Ivan Levakov.;Sasa Vojinov.;Goran Marusic.;Milan Popov.;Olivera Levakov.;Mladen Popov.;Dimitrije Jeremic.
来源: J BUON. 2016年21卷6期1442-1448页
Various targeted disease-specific therapeutics are currently approved, demonstrating a survival benefit over therapy with interferon-alpha (IFN-α) in patients with metastatic renal cell carcinoma (mRCC). Temsirolimus, a highly specific inhibitor of the mammalian target of rapamycin (mTOR), improves the overall and progression-free survival of high-risk patients with mRCC. The purpose of this study was to estimate the effects of temsirolimus on several laboratory parameters and to report the potential adverse events (AEs) in patients with mRCC.
8. Phase I study of the aurora A kinase inhibitor alisertib with induction chemotherapy in patients with acute myeloid leukemia.
作者: Amir T Fathi.;Seth A Wander.;Traci M Blonquist.;Andrew M Brunner.;Philip C Amrein.;Jeffrey Supko.;Nicole M Hermance.;Amity L Manning.;Hossein Sadrzadeh.;Karen K Ballen.;Eyal C Attar.;Timothy A Graubert.;Gabriela Hobbs.;Christelle Joseph.;Ashley M Perry.;Meghan Burke.;Regina Silver.;Julia Foster.;Meghan Bergeron.;Aura Y Ramos.;Tina T Som.;Kaitlyn M Fishman.;Kristin L McGregor.;Christine Connolly.;Donna S Neuberg.;Yi-Bin Chen.
来源: Haematologica. 2017年102卷4期719-727页
Aberrant expression of aurora kinase A is implicated in the genesis of various neoplasms, including acute myeloid leukemia. Alisertib, an aurora A kinase inhibitor, has demonstrated efficacy as monotherapy in trials of myeloid malignancy, and this efficacy appears enhanced in combination with conventional chemotherapies. In this phase I, dose-escalation study, newly diagnosed patients received conventional induction with cytarabine and idarubicin, after which alisertib was administered for 7 days. Dose escalation occurred via cohorts. Patients could then receive up to four cycles of consolidation, incorporating alisertib, and thereafter alisertib maintenance for up to 12 months. Twenty-two patients were enrolled. One dose limiting toxicity occurred at dose level 2 (prolonged thrombocytopenia), and the recommended phase 2 dose was established at 30mg twice daily. Common therapy-related toxicities included cytopenias and mucositis. Only three (14%) patients had persistent disease at mid-cycle, requiring "5+2" reinduction. The composite remission rate (complete remission and complete remission with incomplete neutrophil recovery) was 86% (nineteen of twenty-two patients; 90% CI 68-96%). Among those over age 65 and those with high-risk disease (secondary acute leukemia or cytogenetically high-risk disease), the composite remission rate was 88% and 100%, respectively. The median follow up was 13.5 months. Of those treated at the recommended phase 2 dose, the 12-month overall survival and progression-free survival were 62% (90% CI 33-81%) and 42% (90% CI 17-65%), respectively. Alisertib is well tolerated when combined with induction chemotherapy in acute myeloid leukemia, with a promising suggestion of efficacy. (clinicaltrials.gov Identifier:01779843).
9. Randomized, Double-Blind, Phase III Trial of Ipilimumab Versus Placebo in Asymptomatic or Minimally Symptomatic Patients With Metastatic Chemotherapy-Naive Castration-Resistant Prostate Cancer.
作者: Tomasz M Beer.;Eugene D Kwon.;Charles G Drake.;Karim Fizazi.;Christopher Logothetis.;Gwenaelle Gravis.;Vinod Ganju.;Jonathan Polikoff.;Fred Saad.;Piotr Humanski.;Josep M Piulats.;Pablo Gonzalez Mella.;Siobhan S Ng.;Dirk Jaeger.;Francis X Parnis.;Fabio A Franke.;Javier Puente.;Roman Carvajal.;Lisa Sengeløv.;M Brent McHenry.;Arvind Varma.;Alfonsus J van den Eertwegh.;Winald Gerritsen.
来源: J Clin Oncol. 2017年35卷1期40-47页
Purpose Ipilimumab increases antitumor T-cell responses by binding to cytotoxic T-lymphocyte antigen 4. We evaluated treatment with ipilimumab in asymptomatic or minimally symptomatic patients with chemotherapy-naive metastatic castration-resistant prostate cancer without visceral metastases. Patients and Methods In this multicenter, double-blind, phase III trial, patients were randomly assigned (2:1) to ipilimumab 10 mg/kg or placebo every 3 weeks for up to four doses. Ipilimumab 10 mg/kg or placebo maintenance therapy was administered to nonprogressing patients every 3 months. The primary end point was overall survival (OS). Results Four hundred patients were randomly assigned to ipilimumab and 202 to placebo; 399 were treated with ipilimumab and 199 with placebo. Median OS was 28.7 months (95% CI, 24.5 to 32.5 months) in the ipilimumab arm versus 29.7 months (95% CI, 26.1 to 34.2 months) in the placebo arm (hazard ratio, 1.11; 95.87% CI, 0.88 to 1.39; P = .3667). Median progression-free survival was 5.6 months in the ipilimumab arm versus 3.8 with placebo arm (hazard ratio, 0.67; 95.87% CI, 0.55 to 0.81). Exploratory analyses showed a higher prostate-specific antigen response rate with ipilimumab (23%) than with placebo (8%). Diarrhea (15%) was the only grade 3 to 4 treatment-related adverse event (AE) reported in ≥ 10% of ipilimumab-treated patients. Nine (2%) deaths occurred in the ipilimumab arm due to treatment-related AEs; no deaths occurred in the placebo arm. Immune-related grade 3 to 4 AEs occurred in 31% and 2% of patients, respectively. Conclusion Ipilimumab did not improve OS in patients with metastatic castration-resistant prostate cancer. The observed increases in progression-free survival and prostate-specific antigen response rates suggest antitumor activity in a patient subset.
10. Effect of everolimus on the pharmacokinetics of octreotide long-acting repeatable in patients with advanced neuroendocrine tumors: An analysis of the randomized phase III RADIANT-2 trial.
作者: M E Pavel.;C Becerra.;K Grosch.;W Cheung.;J Hasskarl.;J C Yao.
来源: Clin Pharmacol Ther. 2017年101卷4期462-468页
In the RADIANT-2 trial, addition of everolimus to octreotide long-acting repeatable (LAR) exhibited a clinically meaningful 5.1-month improvement in progression-free survival (PFS) in patients with advanced functional neuroendocrine tumors. In this study, we characterized the effects of everolimus co-administration on octreotide LAR pharmacokinetics and its relationship with efficacy and safety. At least one evaluable blood everolimus and plasma octreotide predose minimum concentration (Cmin ) was available for 182 patients and 294 patients, respectively. Concomitant everolimus administration increased octreotide Cmin with a geometric mean ratio (everolimus/placebo) of 1.47 (90% confidence interval [CI] = 1.32-1.64). Risk for progression was consistently reduced when everolimus Cmin was increased twofold, regardless of octreotide exposure (hazard ratio [HR] = 0.74; 95% CI = 0.46-1.18; HR = 0.54; 95% CI = 0.32-0.92 for 6 ng/mL and 4 ng/mL octreotide, respectively). Risk for pulmonary or metabolic events was associated with increased everolimus Cmin . Co-administration of everolimus plus octreotide LAR increased octreotide Cmin , which did not impact efficacy.
11. The DART Study: Results from the Dose-Escalation and Expansion Cohorts Evaluating the Combination of Dalantercept plus Axitinib in Advanced Renal Cell Carcinoma.
作者: Martin H Voss.;Rupal S Bhatt.;Elizabeth R Plimack.;Brian I Rini.;Robert S Alter.;J Thaddeus Beck.;Dawn Wilson.;Xiaosha Zhang.;Musa Mutyaba.;Chad Glasser.;Kenneth M Attie.;Matthew L Sherman.;Shuchi S Pandya.;Michael B Atkins.
来源: Clin Cancer Res. 2017年23卷14期3557-3565页
Purpose: Activin receptor-like kinase 1 (ALK1) is a novel target in angiogenesis. Concurrent targeting of ALK1 and VEGF signaling results in augmented inhibition of tumor growth in renal cell carcinoma (RCC) xenograft models. Dalantercept is an ALK1-receptor fusion protein that acts as a ligand trap for bone morphogenetic proteins 9 and 10. The DART Study evaluated the safety, tolerability, pharmacokinetics, pharmacodynamics, and antitumor activity of dalantercept plus axitinib in patients with advanced RCC and determined the optimal dose for further testing.Experimental Design: Patients received dalantercept 0.6, 0.9, or 1.2 mg/kg subcutaneously every 3 weeks plus axitinib 5 mg by mouth twice daily until disease progression or intolerance.Results: Twenty-nine patients were enrolled in the dose escalation (n = 15) and expansion (n = 14) cohorts. There were no dose-limiting toxicities or grade 4/5 treatment-related adverse events. In addition to common VEGFR tyrosine kinase inhibitor effects, such as fatigue and diarrhea, commonly seen treatment-related adverse events were peripheral edema, epistaxis, pericardial effusion, and telangiectasia. The objective response rate by RECIST v1.1 was 25% with responses seen at all dose levels. The overall median progression-free survival was 8.3 months.Conclusions: The combination of dalantercept plus axitinib is well tolerated and associated with clinical activity. On the basis of safety and efficacy results, the 0.9 mg/kg dose level was chosen for further study in a randomized phase II trial of dalantercept plus axitinib versus placebo plus axitinib. Clin Cancer Res; 23(14); 3557-65. ©2016 AACR.
12. A phase II evaluation of ixabepilone in the treatment of recurrent/persistent carcinosarcoma of the uterus, an NRG Oncology/Gynecologic Oncology Group study.
作者: Carolyn K McCourt.;Wei Deng.;Don S Dizon.;Heather A Lankes.;Michael J Birrer.;Michele M Lomme.;Matthew A Powell.;James E Kendrick.;Joel N Saltzman.;David Warshal.;Meaghan E Tenney.;David M Kushner.;Carol Aghajanian.
来源: Gynecol Oncol. 2017年144卷1期101-106页
The primary objectives were to determine the objective response rate (ORR) and safety profile of ixabepilone in women with recurrent or persistent uterine carcinosarcoma (UCS). Secondary objectives included progression-free survival (PFS) and overall survival (OS). Exploratory translational objectives included characterization of class III beta tubulin expression and its association with response, PFS, and OS.
13. Safety and Activity of Mirvetuximab Soravtansine (IMGN853), a Folate Receptor Alpha-Targeting Antibody-Drug Conjugate, in Platinum-Resistant Ovarian, Fallopian Tube, or Primary Peritoneal Cancer: A Phase I Expansion Study.
作者: Kathleen N Moore.;Lainie P Martin.;David M O'Malley.;Ursula A Matulonis.;Jason A Konner.;Raymond P Perez.;Todd M Bauer.;Rodrigo Ruiz-Soto.;Michael J Birrer.
来源: J Clin Oncol. 2017年35卷10期1112-1118页
Purpose This phase I expansion cohort study evaluated the safety and clinical activity of mirvetuximab soravtansine (IMGN853), an antibody-drug conjugate consisting of a humanized anti-folate receptor alpha (FRα) monoclonal antibody linked to the tubulin-disrupting maytansinoid DM4, in a population of patients with FRα-positive and platinum-resistant ovarian cancer. Patients and Methods Patients with platinum-resistant epithelial ovarian, fallopian tube, or primary peritoneal cancer received IMGN853 at 6.0 mg/kg (adjusted ideal body weight) once every 3 weeks. Eligibility included a minimum requirement of FRα positivity by immunohistochemistry (≥ 25% of tumor cells with at least 2+ staining intensity). Adverse events, tumor response (via Response Evaluation Criteria in Solid Tumors [RECIST] version 1.1), and progression-free survival (PFS) were determined. Results Forty-six patients were enrolled. Adverse events were generally mild (≤ grade 2), with diarrhea (44%), blurred vision (41%), nausea (37%), and fatigue (30%) being the most commonly observed treatment-related toxicities. Grade 3 fatigue and hypotension were reported in two patients each (4%). For all evaluable patients, the confirmed objective response rate was 26%, including one complete and 11 partial responses, and the median PFS was 4.8 months. The median duration of response was 19.1 weeks. Notably, in the subset of patients who had received three or fewer prior lines of therapy (n = 23), an objective response rate of 39%, PFS of 6.7 months, and duration of response of 19.6 weeks were observed. Conclusion IMGN853 exhibited a manageable safety profile and was active in platinum-resistant ovarian cancer, with the strongest signals of efficacy observed in less heavily pretreated individuals. On the basis of these findings, the dose, schedule, and target population were identified for a phase III trial of IMGN853 monotherapy in patients with platinum-resistant disease.
14. An open-label, multicenter, phase I trial of a cremophor-free, polymeric micelle formulation of paclitaxel combined with carboplatin as a first-line treatment for advanced ovarian cancer: a Korean Gynecologic Oncology Group study (KGOG-3016).
This phase I study aimed to determine the maximum tolerated dose (MTD) of Genexol-PM, when combined with carboplatin, as a first-line treatment in patients with advanced ovarian cancer.
15. Efficacy of Testosterone Suppression with Sustained-Release Triptorelin in Advanced Prostate Cancer.
作者: Jürgen Breul.;Eija Lundström.;Daniela Purcea.;Werner P Venetz.;Patrick Cabri.;Pascale Dutailly.;Evan R Goldfischer.
来源: Adv Ther. 2017年34卷2期513-523页
Androgen deprivation therapy (ADT) is a mainstay of treatment against advanced prostate cancer (PC). As a treatment goal, suppression of plasma testosterone levels to <50 ng/dl has been established over decades. Evidence is growing though that suppression to even lower levels may add further clinical benefit. Therefore, we undertook a pooled retrospective analysis on the efficacy of 1-, 3-, and 6-month sustained-release (SR) formulations of the gonadotropin-releasing hormone (GnRH) agonist triptorelin to suppress serum testosterone concentrations beyond current standards.
16. Exposure-Response and Tumor Growth Inhibition Analyses of the Monovalent Anti-c-MET Antibody Onartuzumab (MetMAb) in the Second- and Third-Line Non-Small Cell Lung Cancer.
作者: Kelong Han.;Pascal Chanu.;Fredrik Jonsson.;Helen Winter.;René Bruno.;Jin Jin.;Mark Stroh.
来源: AAPS J. 2017年19卷2期527-533页
The phase III trial comparing onartuzumab + erlotinib vs. erlotinib in the second- and third-line non-small cell lung cancer (NSCLC) did not meet its primary endpoint of overall survival (OS). The objective was to assess whether doses higher than the phase III dose (15 mg/kg) might yield better efficacy without compromising the safety profile. Data were from 636 patients from the phase II and III NSCLC studies. Tumor growth inhibition (TGI) models were fit to longitudinal tumor size data to estimate individual TGI metrics including time to tumor re-growth (TTG). Cox regression models were developed for time-to-event endpoints (progression-free survival (PFS), OS, and TTG) to investigate relationships with baseline prognostic factors and onartuzumab exposure. Incidence of adverse events was modeled by logistic regression. In the final models, higher onartuzumab exposure was associated with longer PFS, but not with longer OS. Longer OS was associated with higher baseline albumin, longer TTG, smaller number of metastatic sites, female gender, lower ECOG score, and younger age. TTG was the only TGI metric retained in the final OS model. Onartuzumab exposure was not significantly associated with TTG after adjusting for prognostic factors. Higher Cmin was associated with increased incidence of infusion reactions and peripheral edema. Higher onartuzumab exposure was not significantly associated with improved OS after adjusting for prognostic factors and TTG, and there was a trend of unknown clinical significance toward increased incidence of infusion reactions and peripheral edema. These results did not support testing higher onartuzumab doses.
17. Duvelisib treatment is associated with altered expression of apoptotic regulators that helps in sensitization of chronic lymphocytic leukemia cells to venetoclax (ABT-199).
作者: V M Patel.;K Balakrishnan.;M Douglas.;T Tibbitts.;E Y Xu.;J L Kutok.;M Ayers.;A Sarkar.;R Guerrieri.;W G Wierda.;S O'Brien.;N Jain.;H M Stern.;V Gandhi.
来源: Leukemia. 2017年31卷9期1872-1881页
Duvelisib, an oral dual inhibitor of PI3K-δ and PI3K-γ, is in phase III trials for the treatment of chronic lymphocytic leukemia (CLL) and indolent non-Hodgkin's lymphoma. In CLL, duvelisib monotherapy is associated with high iwCLL (International Workshop on Chronic Lymphocytic Leukemia) and nodal response rates, but complete remissions are rare. To characterize the molecular effect of duvelisib, we obtained samples from CLL patients on the duvelisib phase I trial. Gene expression studies (RNAseq, Nanostring, Affymetrix array and real-time RT-PCR) demonstrated increased expression of BCL2 along with several BH3-only pro-apoptotic genes. In concert with induction of transcript levels, reverse phase protein arrays and immunoblots confirmed increase at the protein level. The BCL2 inhibitor venetoclax induced greater apoptosis in ex vivo-cultured CLL cells obtained from patients on duvelisib compared with pre-treatment CLL cells from the same patients. In vitro combination of duvelisib and venetoclax resulted in enhanced apoptosis even in CLL cells cultured under conditions that simulate the tumor microenvironment. These data provide a mechanistic rationale for testing the combination of duvelisib and venetoclax in the clinic. Such combination regimen (NCT02640833) is being evaluated for patients with B-cell malignancies including CLL.
18. Could the Addition of Cetuximab to Conventional Radiation Therapy Improve Organ Preservation in Those Patients With Locally Advanced Larynx Cancer Who Respond to Induction Chemotherapy? An Organ Preservation Spanish Head and Neck Cancer Cooperative Group Phase 2 Study.
作者: Ricard Mesía.;Jose A Garcia-Saenz.;Alicia Lozano.;Miguel Pastor.;Juan J Grau.;Javier Martínez-Trufero.;Julio Lambeaz.;Joaquina Martínez-Galán.;Jose R Mel.;Belen González.;Silvia Vázquez.;Manel Mañós.;Miren Taberna.;Beatriz Cirauqui.;Elvira Del Barco.;Esther Casado.;Jordi Rubió-Casadevall.;Angles Rodríguez-Jaráiz.;Juan J Cruz.; .
来源: Int J Radiat Oncol Biol Phys. 2017年97卷3期473-480页
To evaluate the efficacy and safety of induction chemotherapy (IC) followed by bioradiotherapy (BRT) to achieve functional larynx preservation in the setting of locally advanced head and neck tumors.
19. The Effect of Undaria pinnatifida Fucoidan on the Pharmacokinetics of Letrozole and Tamoxifen in Patients With Breast Cancer.
作者: Shreya Tocaciu.;Lesley J Oliver.;Ray M Lowenthal.;Gregory M Peterson.;Rahul Patel.;Madhur Shastri.;Georgia McGuinness.;Inger Olesen.;J Helen Fitton.
来源: Integr Cancer Ther. 2018年17卷1期99-105页
Although the use of complementary and alternative medicines is widespread in cancer patients, clinical evidence of their benefits is sparse. Furthermore, while they are often assumed to be safe with regard to concurrent use of anticancer therapies, few studies have been carried out to investigate possible interactions. Fucoidans are a group of sulfated carbohydrates, derived from marine brown algae, which have long been used as dietary supplements due to their reported medicinal properties, including anticancer activity. The aim of this study was to investigate the effect of co-administration of fucoidan, derived from Undaria pinnatifida, on the pharmacokinetics of 2 commonly used hormonal therapies, letrozole and tamoxifen, in patients with breast cancer.
20. A phase I study of tivantinib in combination with temsirolimus in patients with advanced solid tumors.
作者: Christos E Kyriakopoulos.;Amy M Braden.;Jill M Kolesar.;Jens C Eickhoff.;Howard H Bailey.;Jennifer Heideman.;Glenn Liu.;Kari B Wisinski.
来源: Invest New Drugs. 2017年35卷3期290-297页
Background A wide variety of human cancers exhibit dysregulated c-Met activity that has implications in oncogenesis. Phosphorylation of c-Met results in activation of the PI3K/AKT/mTOR pathway. Combined blockade of c-Met and mTOR pathways has shown efficacy in preclinical studies. Tivantinib is a c-Met inhibitor and temsirolimus is a selective mTOR inhibitor. We aimed to determine the maximum tolerated dose (MTD) and the recommended phase II dose (RP2D), dose-limiting toxicities (DLT), adverse events (AEs), clinical activity and pharmacokinetic (PK) parameters of the combination. Methods This open-label phase I study used a 3 + 3 dose escalation design. Patients (pts) were treated with escalating doses of tivantinib (120-360 mg tablets orally twice daily) and temsirolimus (20 mg IV weekly) followed by dose expansion at the MTD. Separate cohorts were planned for extensive (normal) and poor tivantinib metabolizers based on CYP2C19 genotypes. Cycles were 28 days besides cycle 1 that was 35 days to allow for PK analysis. Results Twenty-nine pts. [median age 58 (range 28-77)] were enrolled (21 in dose escalation and 8 in dose expansion). All were extensive CYP2C19 metabolizers. The most common types of cancer were colorectal, ovarian and non-small cell lung. Sixteen out of 21 and 6 out of 8 pts. were evaluable for DLT evaluation per protocol in the dose escalation and dose expansion phases, respectively. Pts remained on study for a median of 71 days (range 18-296). The MTD and RP2D was tivantinib 240 mg twice daily and temsirolimus 20 mg weekly. DLTs included grade (gr) 4 neutropenia (2 pts.; 1 with gr 3 febrile neutropenia), gr 3 abdominal pain (1 pt) and gr 2 mucositis resulting in inadequate drug delivery. The most common treatment related AEs grade ≥ 2 included: anemia (gr 2 in 9 pts., gr 3 in 3 pts), fatigue (gr 2 in 10 pts), anorexia (gr 2 in 9 pts), hypoalbuminemia (gr 2 in 6 pts., gr 3 in 2 pts), hypophosphatemia (gr 2 in 2 pts., gr 3 in 5 pts) and nausea (gr 2 in 6 pts., gr 3 in 1 pt). One pt. with ovarian cancer had a confirmed partial response and remained on study for 10 months, a second patient with ovarian cancer had stable disease and remained on study for 6 months and a third pt. with squamous cell carcinoma of the tongue had stable disease and remained on study for 7 months. Pharmacokinetic analysis showed that there is no interaction in the plasma concentrations between tivantinib and temsirolimus. Conclusions The combination of tivantinib with temsirolimus appears to be well tolerated with evidence of clinical activity.
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