Phase I trial of temsirolimus and lenalidomide in pts with rel/ref lymphomas.

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 8075-8075
Author(s):  
Sonali M. Smith ◽  
Kenneth Stuart Cohen ◽  
Justin Paul Kline ◽  
Jose D Zavala ◽  
Kathy Conner ◽  
...  

8075 Background: The PI3K/Akt/mTOR axis is deregulated in lymphomas and is an emerging therapeutic target. We previously reported activity of temsirolimus (TEM) in DLBCL and FL (JCO 2010 28(31); however, the response duration was short. Lenalidomide (LEN) is an immunomodulatory agent with multiple anti-tumoral and microenvironmental effects, with activity across lymphoma subtypes. We are thus conducting a phase I/II study of TEM plus escalating doses of LEN. The phase I portion is completed. Methods: Patients (pts) had rel/ref lymphoma after >1 cytotoxic regimen. Other criteria: ANC > 1000/mL, platelets > 75,000/mL, nl renal and hepatic function, no VTE within 3 months, non-pregnant. A standard “3 + 3” design was used with dose levels (DL) listed (Table). TEM was given IV weekly and LEN was dosed orally on D1-D21, q28 days. Dose-limiting toxicity (DLT) was defined as cycle 1 grade 3 or 4 non-hematologic toxicity not responsive to standard supportive care, grade 4 thrombocytopenia > 7 days (or associated with bleeding or requiring more than 1 platelet transfusion), ANC < 500/mL > 7 days despite growth factors, or any thromboembolic event. Results: 18 pts (13M, 5F), med age 64 y (range, 42-80 y) were enrolled. 3 pts are ineval for DLT evaluation: one withdrew consent before starting treatment, 1 withdrew consent after a single dose, and 1 died of rapid disease progression after 1 dose. There was 1 DLT at DL1 and 2 DLTs at DL3 (Table). Adverse effects that did not meet DLT criteria: hypokalemia, hypertriglyceridemia, vomiting, urinary tract infection, skin infection, nausea, hypoxia, hyponatremia, diarrhea, and hyperglycemia (each occurring in one pt). There are 5 partial responses, 4 stable disease, 3 progressive disease, 2 not adequately assessed, and 4 still on active treatment. Conclusions: The combination of weekly intravenous TEM plus oral LEN is well-tolerated in a heavily pretreated group of pts with rel/ref lymphomas. The recommended phase II doses are TEM 25mg weekly plus LEN 20mg (D1-D21, q28d). [Table: see text]

1998 ◽  
Vol 16 (9) ◽  
pp. 3037-3043 ◽  
Author(s):  
H S Nicholson ◽  
M Krailo ◽  
M M Ames ◽  
N L Seibel ◽  
J M Reid ◽  
...  

PURPOSE The Children's Cancer Group conducted a phase I trial of temozolomide stratified by prior craniospinal irradiation (CSI). PATIENTS AND METHODS Children and adolescents with recurrent or progressive cancer were enrolled. Temozolomide was administered orally daily for 5 days, with subsequent courses administered every 21 to 28 days after full hematologic recovery. Dose levels tested included 100, 150, 180, 215, 245, and 260 mg/m2 daily. RESULTS Twenty-seven patients on the non-CSI stratum were assessable for hematologic toxicity. During the first three dose levels (100, 150, and 180 mg/m2 daily), only grades 1 and 2 hematologic toxicity occurred. One patient at 215 mg/m2 daily had grade 3 hematologic toxicity. Three of eight patients (38%) treated at 245 to 260 mg/m2 daily had dose-limiting toxicity (DLT), which included both neutropenia and thrombocytopenia. Twenty-two patients on the CSI stratum were assessable for hematologic toxicity. Hematologic DLT occurred in one of six patients (17%) at 100 mg/m2 daily and in two of four patients (50%) at 215 mg/m2 daily. No nonhematologic DLT occurred; nausea and vomiting occurred in more than half of the patients. After two courses of temozolomide, 10 patients had stable disease (SD), and three patients had a partial response (PR), one of whom subsequently had a complete response (CR) that persists through 24 months of follow-up. CONCLUSION The maximum-tolerated dose (MTD) of temozolomide for children and adolescents without prior CSI is 215 mg/m2 daily and for those with prior CSI is 180 mg/m2 daily for 5 days, with subsequent courses that begin on day 28. Temozolomide is well tolerated and should undergo phase II testing in children and adolescents.


2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 2573-2573 ◽  
Author(s):  
J. C. Bendell ◽  
G. J. Weiss ◽  
J. R. Infante ◽  
E. G. Chiorean ◽  
M. Borad ◽  
...  

2573 Background: TH-302 is a 2-nitroimidazole prodrug of the DNA alkylator, bromo-isophosphoramide mustard (Br-IPM). TH-302 is essentially inactive under normoxia but in severe hypoxia and in the presence of certain reductases, it is reduced and Br-IPM is released. Methods: Eligible patients (pts) had ECOG ≤1, advanced or metastatic solid tumors, evaluable by RECIST, and acceptable hematologic, liver and renal function. A modified accelerated titration design was used. TH-302 was administered intravenously over 30–60 minutes on Day 1, 8 and 15 of a 28-day cycle. CT scans were obtained after every 2 cycles. Detailed pharmacokinetic sampling was performed on Days 1 and 15. The primary objectives of this study were to determine the dose limiting toxicity (DLT) and the maximum tolerated dose (MTD). Results: Twenty-nine pts enrolled at 3 sites at 9 dose levels from 7.5–670 mg/m2. Median age: 64y. 20 male/9 female. ECOG 0/1: 16/13. Primary tumor: prostate (8), colorectal (8), lung (5) other (8). Two of 5 pts at 670 mg/m2 had DLT: Herpes simplex perianal/rectal ulcers and dehydration due to mucositis. Reversible skin and mucosal adverse events (AE) occurred in 12 of 15 (80%) pts at ≥480 mg/m2 including grade 3 events in 3 pts. The most common TH-302-related AEs were nausea, skin lesions, vomiting and fatigue. Hematologic toxicity was mild and limited: two pts with grade 1 and one pt with grade 2 neutropenia and five pts with grade 1 thrombocytopenia. Five pts had grade 3 and one grade 4 lymphopenia. Four pts have enrolled at an intermediate dose of 575 mg/m2 with no DLT so this is likely the MTD and is well above the predicted biologic effective dose of 100 mg/m2. One pt with SCLC treated at 480 mg/m2 and one with melanoma treated at 670 mg/m2 had unconfirmed partial responses; 12 pts had stable disease (6 continuing after 4 or more cycles), 7 had PD, 4 were unevaluable and 4 are too early to assess. Cmax and AUC for TH-302 and Br-IPM increased linearly with no accumulation at Day 15. Conclusions: Weekly TH-302 has remarkably little hematologic toxicity. Skin and mucosal AEs have developed at the higher dose levels. Skin/mucosa are known to have hypoxic regions. TH-302 is the first HAP to demonstrate tumor responses in Phase I. The MTD is likely 575 mg/m2. Studies in combination with chemotherapy are ongoing. [Table: see text]


Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 582-582 ◽  
Author(s):  
Ramon Garcia-Sanz ◽  
Anna Sureda ◽  
Sara Alonso-Alvarez ◽  
Ana Pilar Gonzalez ◽  
Antonia Rodriguez ◽  
...  

Abstract Introduction: Around 30% of Hodgkin Lymphoma (HL) patients are refractory or relapse (RR) after first line therapy. Salvage chemotherapy followed by high-dose chemotherapy and with Autologous Peripheral Blood Stem Cell Transplantation (APBSCT) can cure many patients, but those who are transplanted with active disease detectable by PET-CT have a very poor prognosis. Therefore, the current challenge in HL is to improve the results of the pre-transplant chemotherapy. Phase 2 single agent trials with Brentuximab Vedotin (BV) in highly RRHL patients have demonstrated overall and complete response rates of 75% and 34%, respectively (Younes, JCO 2012; 30:2183); as 2nd line, BV has provided very promising results in combination with chemotherapy (LaCasce, Blood 2014; 124(21):3099) Objectives: We conducted a phase I/II trial to determine the dose limiting toxicity (DLT), maximum tolerated dose (MTD), and response rate with combined Brentuximab vedotin with ESHAP chemotherapy [BRESHAP] as 2nd line therapy for RRHL prior to APBSCT (ClinicalTrials.gov #NCT02243436). Methods: The primary efficacy endpoint was the proportion of complete responses (CR) pre-APBSCT. It is a phase I-II trial with dose escalation followed by expansion. Treatment consisted of Etoposide (40 mg/m2/day IV, D1-4), Solumedrol (250 mg/day IV, D1-4), High dose AraC (2 g/m2 IV, D5) and cisPlatin (25 mg/m2/day IV, D1-4). BV was administered at three dose levels: 0.9, 1.2 or 1.8 mg/kg IV on day 1 to each cohort of patients, following the scheme of cohorts of 3 patients each, to assess the maximum tolerable dose (MTD). The dose limiting toxicity (DLT) was defined as Grade 4 hematologic toxicity extended over 3 weeks or non-hematologic toxicity grade ≥3 during the first treatment cycle. Patients were evaluated weekly. Results: Patients with relapsed or refractory classical HL (cHL) after one prior line of therapy were eligible. To date, 27 patients have been included in the trial. The first 9 have completed the three courses as scheduled, without TLD doses. Fifteen patients have received the first full cycle, presenting 4 episodes of severe adverse reactions: non-neutropenic fever due to IV AraC and to complicated catheter insertion; one pneumothorax after catheter insertion; and one febrile neutropenia recovered with antibiotic treatment. Grade 4 hematologic toxicity presented in three of these nine patients: 2 neutropenia and thrombocytopenia 1. All nine patients underwent stem cell mobilization after the 1st or the 2nd treatment cycle with subcutaneous G-CSF 5 mcg/Kg days +7 to +14, collecting >2·10e6/Kg peripheral blood CD34+ cells in all cases, with no grade 3-4 toxicity. The number of harvesting procedures was one & two in seven & two patients, respectively. The transplant has been done in 6 patients, with a median of 9 days and 10 days for neutrophil and platelet recovery, respectively. All nine patients had no evidence of disease before the transplant by PET-CT, although one patient had residual FGD uptaking areas without underlying anatomical lesions on CT (metabolic complete response: 89%). Six patients have been evaluated after the APBSCT and they are all in metabolic CR. The phase II of the trial was open on April the 12th 2015, with BV at the recommended dose of 1.8 mg/kg per course. At the submission of this report, there were 28 patients recruited, and 17 evaluated pre-transplant, achieving 16 CR. The complete results will be presented during the meeting; the projected recruitment by the meeting is 45 (65% of the total planned recruitment). Conclusions: BRESHAP is a tolerable treatment scheme as remission induction prior to transplant in patients with refractory or relapsed Hodgkin lymphoma, and it offers very promising results. Disclosures Off Label Use: Brentuximab Vedotin in Resistant or Relapsed Hodgkin Lymphoma patients who are candidates to Autologous Stem Cell Transplant. Sureda:Seattle Genetics Inc.: Research Funding; Takeda: Consultancy, Honoraria, Speakers Bureau. Caballero:Takeda: Honoraria, Research Funding.


2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e14587-e14587
Author(s):  
Simon Gollins ◽  
Arwel Lloyd ◽  
Jackie Morris ◽  
Nick Smith ◽  
Brian Haylock ◽  
...  

e14587 Background: This phase I study assessed the combination of D, C, and continuous CAP in AEC to develop a regimen of acceptable toxicity to take forward to phase II study. Methods: Patients with AEC were treated in cohorts of 3, at one of 3 dose levels (DL). DL0: D at 60 mg/m2 IV on day 1, C at 60 mg/m2 IV on day 1, CAP at 1,000 mg/m2 per day in two divided doses days 1-21, every 3 weeks. DL1: CAP increased to 1,250 mg/m2 per day. DL2: D increased to 75 mg/m2 IV day 1 and CAP to 1,250 mg/m2 per day. Prophylactic colony stimulating factors were not used. Patients received a maximum of 6 cycles. Blood counts and biochemistry were assessed twice weekly and daily for grade 3/4 abnormality. Results: Between 1.11.07 and 24.6.09 15 patients were enrolled: male/female:14/1, WHO PS:0/1:10/5, median age 63 yr (range 46-69), primary site oesophagus/GOJ/stomach:7/3/5, adeno/squamous:14/1, T2/3/4:2/9/4, N0/1/2:1/13/1, M0/1:1/14. 6 patients were treated at DL0, 6 at DL1 and 3 at DL2. All patients received 6 cycles apart from 2 at DL 1 who received 3 because of disease progression. Dose intensity: DL0: D 95%, C 100%, CAP 85%; DL1: D 91%, C 98.2%, CAP 79%; DL2: D 86%, C 100%, CAP 79%. There were no deaths on chemotherapy or within 30d of the last dose. The main dose limiting toxicity was febrile or infective neutropenia developing in 1/6 DL0, 2/6 DL1 and 3/3 DL2 (see table of most common treatment-related adverse events below: serious toxicity is gr 3 unless specified gr 4). The maximum length of gr 4 neutropenia was 5d. Best response (RECIST): 1 CR, 11PR, 2 SD and 1PD. 11 patients received second-line chemotherapy. Median and 1 yr overall survival: 17.5m and 60%. Median and 1 yr progression-free survival: 7m and 27%. Conclusions: TCX DLO is recommended for further study in a phase II trial. Encouraging response and survival were seen. [Table: see text]


2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 15023-15023
Author(s):  
B. E. Miller ◽  
D. L. Tait

15023 Background: Treatment for recurrent cervical cancer is palliative; therefore a low side effect profile is important. The combination of docetaxel and carboplatin has been used for the initial treatment of cervical cancer with success. We assessed the tolerance of a weekly schedule in patients with recurrent cervical cancer after chemoradiation. Methods: Patients with advanced recurrent squamous carcinoma of the cervix with a performance status of 2 or better were enlisted in a phase I study evaluating carboplatin at an AUC of 2 and docetaxel at the following dose levels: L1, 25 mg/m2; L2, 30 mg/m2; L3, 35 mg/m2; and L4, 40 mg/m2 i.v. for 3 consecutive weeks of a 4 week cycle. Results: So far 9 patients have been completely evaluated. The median age is 55 years. The median time to recurrence is 13 months. Previous treatment included chemoradiation and in 2 patients additional platinum based chemotherapy. Areas of metastasis included the lung, lymphnodes, abdomen, liver and the pelvis. Dose levels 1 to 3 are completed. A total of 34 courses were administered, an average of 3.6 per patient. One patient received 8 courses. Treatment was discontinued due to progressive disease in 7 patients and due to toxicity in 2 patients one with grade 3 onycholysis and another with a grade 3 allergic reaction to carboplatin. There were no treatment delays due to hematologic toxicity, no grade 2 or higher granulocytopenia, no thrombocytopenia. The mean hemoglobin level dropped from 12 g/dl prior to course 1 to 10.6 g/dl prior to course 3 and 10.2 g/dl prior to course 5. No grade 3 anemia was seen. The main non-hematologic side effects were fatigue, nausea and alopecia, none of which reached grade 3. Accrual on the L4 cohort is still ongoing. Conclusions: The combination of docetaxel and carboplatin given on a weekly schedule is well tolerated in patients with recurrent cervical cancer after chemoradiation. Dose levels similar to those reported for initial treatment can be reached. [Table: see text]


2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 18145-18145 ◽  
Author(s):  
R. B. Natale ◽  
M. McKinley ◽  
J. Hilger ◽  
T. Myers

18145 Background: Bortezomib (Vc) is a novel proteosome inhibitor with activity in several malignancies including multiple myeloma, mantle cell lymphoma, and NSCLC. In NSCLC, Vc has additive activity combined with carboplatin and gemcitabine in first line and with docetaxel in second line treatment. Pemetrexed (P) is active in NSCLC and preclinical data suggests a pro-apoptotic synergy between Vc and P. Therefore, we initiated a phase I/II dose finding study of Vc + P in previously-treated patients (pts) with advanced or metastatic NSCLC. Methods: Fifteen pts have been accrued to 3 of 4 planned dose levels of Vc + P. Starting doses (and # pts treated) were Vc 1.4 mg/m2 day 1 & 8 + P 400 mg/m2 day 1 every 3 weeks (3 pts). The 2nd and 3rd dose levels were Vc 1.6 mg/m2 day 1 & 8 + P 500 mg/m2 day 1 (8 pts, 5 new + 3 from dose level 1) and Vc 1.8 mg/m2 day 1 & 8 + P 500 mg/m2 day 1 (7 pts). Results: 15 pts are evaluable for response and toxicity and include 8 males, 7 females, median age 67 (range, 55–82), PS 0/1 (3/12 pts), median of 2 prior therapies (range 1–3). Confirmed PRs occurred in 2 pts (13%) and stable disease in 5 (33%). Dose limiting toxicities consisted of grade 4 fatigue (1 pt) and neutropenia/fever (1 pt) at dose level 2, and grade 3 abdominal pain and fatigue (1 pt) and grade 3 diarrhea and vomiting (1 pt) at dose level 3. Conclusions: The above combination is safe at the doses tested thus far and active in pts with heavily pretreated, advanced NSCLC. We are currently exploring Vc 2.0 mg.m2 Day 1 & 8 + P 500 mg/m2 day 1 every 3 weeks to determine the MTD and plan a multi-site Phase II study to determine response rate and survival in a larger pt population. No significant financial relationships to disclose.


Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 5299-5299 ◽  
Author(s):  
Aneel Paulus ◽  
Pooja Advani ◽  
Betsy R. Laplant ◽  
Sharoon Akhtar ◽  
Taimur Sher ◽  
...  

Abstract Background: Lenalidomide (Len) is clinically active in CLL patients (pts). Robust anti-leukemic immune response from Len is truncated by dysfunctional immune system in CLL and anti-apoptotic bcl-2 protein. We hypothesized that therapeutic downregulation of Bcl-2 may help enhance the killing potential of immune effector cells that are activated by Len. AT-101 is a novel, orally active BH3-mimetic that binds to antiapoptotic Bcl-2 family proteins (Bcl-2, Mcl-1 and Bcl-xL) and induces CLL cell death ex vivo (Masood et al British Journal of Haematology 2012). Encouraging efficacy and safety results of AT-101 alone or in combination with rituximab in CLL have been reported in Phase I/II studies. We have previously demonstrated that bcl-2 downregulation in CLL cells enhanced the killing potential of Len-activated immune cells. Conversely, pretreatment of CLL cells with Len enhanced AT-101 cytotoxicity in an immune cell independent manner (Masood et al British Journal of Haematology 2012). These preclinical findings formed the basis of a phase I/II clinical trial testing the combination of AT-101 and lenalidomide in relapsed B-CLL patients. Methods: The phase I portion of this study (NCT 01003769) utilizes a standard cohort of three design to determine the maximum tolerated dose (MTD) of the combination regimen. The MTD is defined as the dose level below the lowest dose that induces dose-limiting toxicity (DLT) in at least one-third of patients. Following the MTD determination, the phase 2 portion will assess the efficacy of this combination using a one-stage design with an interim analysis. Key inclusion criteria include adult CLL pts with relapsed disease who have received 1-4 prior lines of treatment (Rx) (phase I) or 1-2 lines of Rx (phase II), last dose > 4 weeks from enrollment, ECOG performance status 0-2, good renal/liver function, acceptable blood counts. Patients with known hypersensitivity to thalidomide/Len or prior use of gossypol/AT-101 were excluded. Cycle 1 Rx includes Len alone and cycles 2-12 includes Len and AT-101. Starting doses of Len and AT-101 are 5mg oral daily on days 1-21 and 40 mg oral twice daily (b.i.d) on days 1-3 of a 28-day cycle. Planned dose escalation is shown in Table 1. Three pts will be treated at each dose level and observed during the first cycle of the combination Rx. Dose limiting toxicity is defined as grade 4 anemia unrelated to disease, thrombocytopenia-grade 4 or grade 3 with bleeding/requiring platelets, ANC <500 for >14 days, febrile neutropenia , Grade 3/4 non-hematologic toxicity. Dose from Phase II will be based on MTD from phase I. Peripheral blood and bone marrow will be collected and analyzed for immune cellular microenvironment and effect of Len and AT-101 on molecular targets. Optional lymph node biopsy will be done at baseline and if tumor-flare reaction occurs. This study is expected to accrue a maximum of 26 pts in phase I and 34 pts in phase II, overall maximum sample size of 60 pts. Five pts in phase I have been accrued to date. Table 1 (* starting dose level) Table 1. (* starting dose level) Disclosures No relevant conflicts of interest to declare.


Blood ◽  
2012 ◽  
Vol 120 (21) ◽  
pp. 3661-3661 ◽  
Author(s):  
David J. Inwards ◽  
Paul Fishkin ◽  
Betsy R. LaPlant ◽  
Matthew T. Drake ◽  
Paul Kurtin ◽  
...  

Abstract Abstract 3661 Objective: We conducted this trial to determine the maximum tolerated dose (MTD) and schedule of temsirolimus added to an established regimen comprised of rituximab and cladribine for the initial treatment of mantle cell lymphoma and to generate preliminary information on the toxicity and efficacy of this combination. Methods: A standard phase I cohort of 3 study design was utilized. MTD was defined as the dose level below the lowest dose that induces dose-limiting toxicity (DLT) in at least one-third of patients (at least 2 of a maximum of 6 new patients). DLT was defined as grade 4 ANC (<500) for ≥5 days, grade 4 ANC (<500) associated with fever (>100.5 F) and/or active infection, PLT <25,000, grade 4 infection, or ≥grade 3 non-hematologic toxicity during the first cycle of therapy as per NCI Common Terminology Criteria for Adverse Events v3.0. The fixed doses of rituximab and cladribine were 375 mg/m2 IV day 1 and 5 mg/m2/d IV days 1–5 of a 28 day cycle, respectively, as previously published. There were 5 planned temsirolimus IV dose levels: 15 mg day 1; 25 mg day 1; 25 mg days 1 and 15; 25 mg days 1,8 and 15; and 25 mg days 1,8,15, and 22. The fifth dose level is as previously published in combination with rituximab. Results: A total of 17 patients were treated: 3 each at dose levels 1–4 and 5 at dose level 5 (25 mg temsirolimus days 1,8,15, and 22). The median age was 75 years (52–86). There were 11 males and 6 females. At presentation 88% had stage IV disease, and 94% had extranodal disease. MIPI scores were low in 6% (1 patient), intermediate in 59% (10 patients), and high in 35% (6 patients). There was a single DLT recorded at dose level 3 based on the initial DLT criteria, though this cytokine release syndrome was clearly rituximab related, and occurred prior to the first dose of temsirolimus. Five patients were treated at the highest planned temsirolimus dose level (25 mg days 1,8,15, and 22) with no DLT observed. No further dose escalation was planned, and this level was determined to be tolerated, though higher levels may be tolerable. All patients were evaluable for adverse events. Hematologic toxicity was frequent, with grade 3 anemia in 12% of patients, grade 3 thrombocytopenia in 35%, grade 4 thrombocytopenia in 30%, grade 4 lymphopenia in 47%, grade 3 neutropenia in 24%, and grade 4 neutropenia in 18% of patients. There were 3 thrombotic episodes, 2 of which were attributed to therapy, and 3 episodes of pneumonitis. The overall response rate was 94% with 53% CR and 41% PR. The median progression free survival was 18.7 months. Conclusions: Temsirolimus 25 mg IV weekly may be safely added to rituximab and cladribine at 375 mg/m2 IV day 1 and 5 mg/m2/d IV days 1–5 of a 28 day cycle, respectively. This regimen had promising preliminary activity in an elderly cohort of patients with mantle cell lymphoma. Disclosures: Off Label Use: Temsirolimus for mantle cell lymphoma.


2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 2570-2570 ◽  
Author(s):  
D. Hess ◽  
S. Boehm ◽  
A. Delmonte ◽  
E. Gallerani ◽  
P. Barbieri ◽  
...  

2570 Background: Namitecan is a new water-soluble camptothecin analogue which showed high antitumor activity in preclinical models. Aim of this trial was to determine safety, PK profile and activity in adult patients with advanced solid tumors. Methods: The dose escalation started at 2.5 mg i.v. on days 1 and 8 of a 21 day cycle (D1, D8 Q21D) and increased according to 3+3 cohort design depending on the observed toxicity. Dose limiting toxicity (DLT) definitions were: ANC <0.5x109/L for >5 days; PLT ≥ Grade 3 (CTC V3); grade ≥2 liver/renal toxicity not recovered by D22; any non-hematologic toxicity ≥ Grade 3; D8 dose skipping due to toxicity. Maximum tolerated dose (MTD) and recommended dose (RD) were the primary end-points. Blood and urine samples were collected at cycle 1 for PK evaluation. Results: 31 pts (11 endometrial ca., 5 CRC, 5 ovarian ca., 2 NSCLC, 8 other) have been included, with 6 dose levels evaluated (2.5; 5; 10; 15; 17.5 and 20 mg). 17.5 mg was introduced later when 2/7 DLTs at 20 mg were observed (ANC G4>5days, one with D8 skipping). At 17.5mg 2/4 pts experienced DLTs (ANC G4; D8 skipped). Uncomplicated neutropenia and thrombocytopenia were the most relevant G3/4 hematological toxicities. Other toxicities were mild or moderate asthenia, fatigue and alopecia. The MTD was defined at 17.5 mg and the RD was 15 mg. Stable disease ≥ 6 cycles was recorded in 6 pts (2 stable diseases ≥ 10 cycles). PK was linear and data suggest an entero-hepatic recirculation. No metabolites were found in plasma and the product resulted poorly excreted into urine. Conclusions: The MTD and RD of D1, D8 Q21D schedule have been identified. The study will continue with the evaluation of MTD and RD of a single administration per cycle (D1 Q21D), to optimize the schedule of treatment. [Table: see text]


2012 ◽  
Vol 30 (5_suppl) ◽  
pp. 270-270 ◽  
Author(s):  
Juan Martin Liberal ◽  
José Pablo Maroto ◽  
Begoña Mellado ◽  
Ferran Ferrer ◽  
Gemma Sancho ◽  
...  

270 Background: Preclinical studies suggest enhanced radiation-induced cell death when VEGFR inhibitor therapies are combined with RT. Methods: Patients with localized muscle invasive urothelial carcinoma of the bladder in clinical stage T2-3 N0 M0, who were not eligible or rejected radical cystectomy, ECOG PS 0-2, and adequate hematological, renal and hepatic function, were enrolled in this phase I study to assess safety and identify the dose limiting toxicity (DLT), maximum tolerated dose (MTD) and recommended dose (RD) of sorafenib and RT. A 3+3 dose escalation design with cohorts of 3-6 patients was used. Treatment consisted of TUR, followed by normofractionated (2 Gy/day) external-beam RT with high-energy photons, 46 Gy to minor pelvis and 66 Gy to bladder, combined with sorafenib given po continuously. Sorafenib was started two weeks before RT and was administered for 12 weeks, finishing 4 weeks after RT. Dose levels 1, 2 and 3 corresponded to sorafenib 200 mg qd, 200 mg bid and 800 mg bid. Pathological response was assessed by post-treatment TUR. Results: Ten patients were included: median age 71 years (44-84); gender 7M: 3F. Patients were treated at 3 dose levels, the MTD was reached at level 3 and the RD was: sorafenib 200 mg bid with RT. Two DLTs occurred, both at the third dose level: diarrhea grade 3 and digestive bleeding grade 3 with secondary anemia and hemodynamic angor in a patient with previous small bowel angiodysplasia. The most frequent toxicity was diarrhea. Other grade 1-2 toxicities included rash, fatigue, hand-foot syndrome, hypertension, dysuria and urinary frequency. One patient developed late radiation cystitis. Pathological complete response was achieved in 8 of 9 patients evaluated. Salvage cystectomy has been performed in one patient due to recurrent superficial bladder tumor. After a median follow up of 30 months, 6 patients remain disease-free with intact bladder. Conclusions: The combination of sorafenib and RT appears to be feasible and safe allowing long-term bladder preservation in selected patients. A phase II study to assess the activity of this promising combination is warranted.


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