scholarly journals Phase I trial of intratumoral PVSRIPO in patients with unresectable, treatment-refractory melanoma

2021 ◽  
Vol 9 (4) ◽  
pp. e002203
Author(s):  
Georgia M Beasley ◽  
Smita K Nair ◽  
Norma E Farrow ◽  
Karenia Landa ◽  
Maria Angelica Selim ◽  
...  
Keyword(s):  
Adverse Events ◽  
Phase I ◽  
Phase I Trial ◽  
Clinical Investigation ◽  
Objective Response ◽  
Complete Response ◽  
Primary Objective ◽  
Mitogen Activated Protein Kinase ◽  
Open Label ◽  
Serious Adverse Events

BackgroundWhile programmed cell death protein 1 (PD-1) and programmed death-ligand 1 (PD-L1) antagonists have improved the prognosis for many patients with melanoma, around 60% fail therapy. PVSRIPO is a non-neurovirulent rhinovirus:poliovirus chimera that facilitates an antitumor immune response following cell entry via the poliovirus receptor CD155, which is expressed on tumor and antigen-presenting cells. Preclinical studies show that oncolytic virus plus anti-PD-1 therapy leads to a greater antitumor response than either agent alone, warranting clinical investigation.MethodsAn open-label phase I trial of intratumoral PVSRIPO in patients with unresectable melanoma (American Joint Committee on Cancer V.7 stage IIIB, IIIC, or IV) was performed. Eligible patients had disease progression on anti-PD-1 and V-raf murine sarcoma viral oncogene homolog B (BRAF)/mitogen activated protein kinase kinase (MEK) inhibitors (if BRAF mutant). The primary objective was to characterize the safety and tolerability of PVSRIPO. Twelve patients in four cohorts received a total of 1, 2 or 3 injections of PVSRIPO monotherapy, with 21 days between injections.ResultsPVSRIPO injections were well tolerated with no serious adverse events (SAEs) or dose-limiting toxicities (DLTs) reported. All adverse events (AEs) were grade (G) 1 or G2 (G1 pruritus most common at 58%); all but two PVSRIPO-treatment related AEs were localized to the injected or adjacent lesions (n=1 G1 hot flash, n=1 G1 fatigue). Four out of 12 patients (33%) achieved an objective response per immune-related response criteria (two observations, 4 weeks apart), including 4/6 (67%) who received three injections. In the four patients with in-transit disease, a pathological complete response (pCR) was observed in two (50%) patients. Following study completion, 11/12 patients (92%) reinitiated immune checkpoint inhibitor-based therapy, and 6/12 patients (50%) remained without progression at a median follow-up time of 18 months.ConclusionIntratumoral PVSRIPO was well tolerated. Despite the limited number of PVSRIPO treatments relative to the overall lesion burden (67% patients>5 lesions), intratumoral PVSRIPO showed promising antitumor activity, with pCR in injected as well as non-injected lesions in select patients.Trial registration numberNCT03712358

A phase I trial evaluating NBTXR3 activated by radiotherapy in combination with nivolumab or pembrolizumab in patients with advanced cancers.

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. 2590-2590
Author(s):  
Colette Shen ◽  
Jessica M. Frakes ◽  
Jiaxin Niu ◽  
Ari Rosenberg ◽  
Jared Weiss ◽  
...  
Keyword(s):  
Phase I ◽  
Phase I Trial ◽  
Tumor Regression ◽  
Checkpoint Inhibitors ◽  
Objective Response ◽  
Kidney Injury ◽  
Complete Response ◽  
Intratumoral Injection ◽  
Primary Objective ◽  
Open Label

2590 Background: Immune checkpoint inhibitors (ICIs) targeting PD-1 are an effective treatment for a variety of cancers. However, the majority of patients (pts) exhibit resistance to ICIs. Overcoming this resistance represents a major challenge in immuno-oncology. Emerging evidence suggests radiation therapy (RT) produces an immunomodulatory effect that may act synergistically with ICIs. However, RT dose and ultimate efficacy are limited by toxicity to surrounding healthy tissues. NBTXR3, a novel radioenhancer administered by direct intratumoral injection (ITI), is designed at the nanoscale to increase RT dose deposit within tumor cells and subsequent tumor cell killing, without increasing toxicity to surrounding healthy tissue. Preclinical data suggest NBTXR3/RT can trigger a local and systemic anti-tumor immune response and overcome anti-PD-1 resistance. NBTXR3/RT combined with anti-PD-1 may prime the immune system to increase the proportion of ICI responders, or convert ICI non-responders to responders. Methods: This is a multicenter, open-label, phase I trial [NCT03589339] to evaluate NBTXR3/RT/anti-PD-1 in 3 cohorts: (1) Locoregional recurrent or recurrent and metastatic head and neck squamous cell carcinoma (HNSCC) amenable to HN re-irradiation, and metastases from any primary cancer eligible for anti-PD-1 (nivolumab or pembrolizumab) treatment specifically localized in the lung (2) or liver (3), respectively. Stereotactic body RT (SBRT) is delivered at tumor-site selective doses per standard practice. The primary objective is NBTXR3/RT/anti-PD-1 recommended phase 2 dose in each cohort. Secondary objectives are anti-tumor response (objective response rate), safety and feasibility of NBTXR3 injection. Results: Nine pts have been treated: 3 HNSCC, 4 lung, 2 liver. 7/9 pts were anti-PD-1 non-responders. Overall tumor regression was observed in 8/9 pts. NBTXR3/RT/anti-PD-1 resulted in tumor regression in 6/7 pts who had progressed on prior anti-PD-1. A complete response in the injected lymph node lasting over 1 year was observed in 1 anti-PD-1 naïve pt. 2 SAEs related to anti-PD-1 and possibly related to NBTXR3 (G5 pneumonitis, G4 hyperglycemia) were observed in 1 anti-PD-1 naïve HNSCC pt and considered DLTs. This pt also experienced 2 other SAEs related to anti-PD-1 (G4 diabetic ketoacidosis, G4 acute kidney injury). SBRT-related safety profile was as expected. Updated results will be presented. Conclusions: Data from this first-in-human phase I trial evaluating NBTXR3/RT/anti-PD-1 in pts with advanced cancers, show NBTXR3 ITI is feasible and well-tolerated. NBTXR3/RT/anti-PD-1 demonstrated promising signs of efficacy. Of particular interest, NBTXR3/RT can overcome ICI resistance in pts having progressed on prior anti-PD-1, supporting further development of NBTXR3 in combination with anti-PD-1 as well as other ICIs. Clinical trial information: NCT03589339.

302 A phase I trial of intratumoral PVSRIPO in patients with unresectable treatment refractory melanoma

2020 ◽  
Vol 8 (Suppl 3) ◽  
pp. A329-A329
Author(s):  
Georgia Beasley ◽  
Nellie Farrow ◽  
Karenia Landa ◽  
Maria Angelica Seilm ◽  
Sin-Ho Jung ◽  
...  
Keyword(s):  
Phase I ◽  
Phase I Trial ◽  
Tumor Response ◽  
Clinical Investigation ◽  
Objective Response ◽  
Pathologic Complete Response ◽  
Disease Status ◽  
Primary Objective ◽  
Open Label ◽  
Preclinical Data

BackgroundWhile PD-1/PD-L1 antagonists have improved the prognosis for many patients with melanoma, the majority fail therapy. PVSRIPO is a novel immunotherapy consisting of a non-neurovirulent rhinovirus:poliovirus chimera that activates innate immunity to facilitate a targeted anti-tumor immune response. Preclinical data show that PVSRIPO plus anti-PD-1 therapy leads to a greater anti-tumor response than either agent alone, warranting clinical investigation.MethodsAn open-label phase I trial of intratumoral PVSRIPO in patients with unresectable melanoma (AJCC version 7 stage IIIB, IIIC, or IV) was performed. Eligible patients failed at least prior anti-PD-1 and BRAF/MEK (if BRAF mutant) therapy. The primary objective was to characterize the safety and tolerability of PVSRIPO. 12 patients in 4 cohorts received a total of 1, 2 (into 2 different lesions) or 3 (same lesion 3x or 3 different lesions) injections of PVSRIPO monotherapy, 21 days apart.ResultsPVSRIPO injections were well tolerated with no SAEs or DLTs reported; all TEAEs were grade (G) 1 or 2 (grade 1 pruritus most common at 58%), with all but 2 PVSRIPO-related TEAEs localized to the injected or adjacent lesions ( n=1 G1 hot flash, n=1 G1 fatigue). Despite the limited number of PVSRIPO treatments relative to the overall lesion burden (67% patients >5 lesions), 4 of 12 patients (33%) achieved an objective response per irRC, including 4/6 (66%) who received 3 injections (maximum administered). Pathologic complete response (ie, no viable tumor detected in injected and non-injected lesions biopsied) was observed in 2 of 4 (50%) patients with in-transit disease. PVSRIPO response relative to time since prior anti-PD-1 exposure is summarized in table 1. Following study completion/PVSRIPO therapy, 10/12 patients (83%) again received immune checkpoint inhibitor (ICI)-based therapy and 6/12 patients (50%) remained progression free at the data cutoff.Abstract 302 Table 1PVSRIPO anti-tumor response relative to ICI administration and post-study disease statusConclusionsIntratumoral PVSRIPO was well tolerated. When taken together with preclinical data, the anti-tumor responses observed relative to prior or subsequent ICI therapy suggests that PVSRIPO, either alone or in combination with anti-PD-1, may be an effective treatment in anti-PD-1 refractory melanoma. An amendment exploring higher PVSRIPO dose levels is ongoing and a phase 2 study with and without anti-PD-1 in the refractory population is initiating.Ethics ApprovalThis study (NCT03712358) was approved by WIRB; ID 20181772.

A phase I/Ib study of crenolanib with ramucirumab (RAM)/paclitaxel (PTX) as second-line therapy (2L tx) for advanced esophagogastric adenocarcinoma (EGA).

2019 ◽  
Vol 37 (4_suppl) ◽  
pp. 116-116
Author(s):  
Megan Greally ◽  
Sujata Jha ◽  
Sam S. Yoon ◽  
Jia Li ◽  
Avni Mukund Desai ◽  
...  
Keyword(s):  
Adverse Events ◽  
Phase I ◽  
Objective Response ◽  
Study Drug ◽  
Standard Of Care ◽  
Maximum Tolerated Dose ◽  
Primary Objective ◽  
Serious Adverse Events ◽  
Ecog Ps ◽  
Higher Doses

116 Background: PTX/RAM as 2L tx for patients (pts) with EGA is a standard-of-care based on the RAINBOW trial (Lancet Oncol 2014;15:1224). However, benefit is modest. Upregulation of the platelet-derived growth factor (PDGF)/PDGF receptor-β (PDGFR-β) pathway causes resistance to VEGF inhibition. Crenolanib is a selective inhibitor of PDGFR-β. We report initial results of the dose escalation phase of a study of crenolanib plus RAM/PTX in pts with previously treated advanced EGA. Methods: This phase I/Ib study is enrolling ECOG PS 0-1 EGA pts with progression on first-line chemo. PTX 80 mg/m2/ day on day 1, 8, 15 and RAM 8mg/kg q 14 days were administered with escalating doses of crenolanib (60, 80, 100 mg BID) after a 7 day “run-in” of crenolanib to assess crenolanib-related toxicities. The primary objective was to determine the maximum tolerated dose (MTD) of crenolanib plus RAM/PTX. Safety and preliminary efficacy were examined. Results: 15 pts were treated; 12 male, median age 58 (32-73), 66% were ECOG PS 1. Primary site was gastric in nine pts, GEJ in 4 pts and esophageal in two pts. Three pts each received crenolanib 60mg BID and 80mg BID, six pts received 100mg BID and three pts received higher doses. At data cutoff, eight pts continued on treatment. 12 pts have completed the DLT evaluation period across 3 dose levels (60 to 100 mg BID). Median treatment duration was 76 days (35-191). The combination was well tolerated, with no DLTs or serious adverse events (SAEs) attributed to study drug. Treatment related adverse events occurred in two pts (17%), all grade 1. These were fatigue, nausea, vomiting and hypertension. Disease progression was the most common reason for treatment discontinuation; no pt discontinued due to study drug related AEs. Nine pts were evaluable for response. One pt had objective response; the disease control rate was 78%. Median PFS and OS were 4.1 and 11.9 months respectively. Conclusions: Crenolanib plus RAM/PTX appears well tolerated at a dose level of 100mg BID. Further evaluation is needed to determine efficacy. Accrual is ongoing at higher doses. Once the MTD is defined, the dose expansion phase will enroll 25 pts. Updated data with pharmacokinetics and biomarkers will be presented. Clinical trial information: NCT03193918.

scholarly journals A phase I study of a dual PI3-Kinase/mTOR inhibitor BEZ235 in adult patients with relapsed or refractory acute leukemia

2020 ◽  
Author(s):  
Fabian Lang ◽  
Lydia Wunderle ◽  
Susanne Badura ◽  
Eberhard Schleyer ◽  
Monika Brüggemann ◽  
...  
Keyword(s):  
Adverse Events ◽  
Acute Leukemia ◽  
Phase I ◽  
Mtor Inhibitor ◽  
Primary Objective ◽  
Prolonged Treatment ◽  
Small Subset ◽  
Open Label ◽  
Serious Adverse Events ◽  
Efficient Treatment

Abstract Background Combined inhibition of phosphatidylinositol 3-kinase (PI3K) and the mammalian target of rapamycin (mTOR) complexes may be an efficient treatment for acute leukemia. The primary objective of this phase I single center open label study was to determine the maximum tolerated dose (MTD) and recommended phase II dose (RP2D) of the dual pan-class I PI3K and mTOR inhibitor BEZ235 in patients with advanced leukemia. Methods Herein patients > 18 years of age who had relapsed or showed refractory leukemia were treated with BEZ235 (orally at 300-400 mg BID (cohort -1/1)) to assess safety, tolerability, preliminary efficacy and pharmacokinetic (PK). Adverse events data and serious adverse events were analyzed and haematological and clinical biochemistry toxicities were assessed from laboratory test parameters. Response was assessed for the first time at the end of cycle 1 (day 29) and after every subsequent cycle. Pharmacokinetic and pharmacodynamic analyses of BEZ235 were also included (BEZ235 plasma levels, phosphorylation of AKT, S6 and 4EBP1). On statistics this trial is a multiple ascending dose study in which a following variant of the 3+3 rule (“Rolling Six”), a minimum of 6 and a maximum of 12 patients was recruited for the dose escalation and another 5 were planned for the expansion phase.Results Twenty-four patients with ALL (n=11) or AML (n=12) or CML-BP (n=1) were enrolled. All patients had failed one (n=5) or more lines of therapy (n=5) and 14 patients were in refractory / refractory relapse. No formal MTD was defined, stomatitis and gastrointestinal toxicity at 400 mg BID dose was considered incompatible with prolonged treatment. The RP2D of BEZ235 was defined as 300 mg BID. Four of 24 patients showed clinical benefit. Twenty-two of 24 patients discontinued because of progression, (median time to progression 27 days (4d-112d). There was no association between PK parameters and efficacy or tolerability. Conclusions Combined inhibition of PI3K and mTOR inhibits a clinically meaningful driver pathway in a small subset of patients with ALL, with no benefit in patients with AML.Trial registration ClinicalTrials.gov, identifier NCT01756118. retrospectively registered 19th December 2012, https://clinicaltrials.gov/ct2/show/NCT01756118.

scholarly journals A phase I study of a dual PI3-Kinase/mTOR inhibitor BEZ235 in adult patients with relapsed or refractory acute leukemia

2020 ◽  
Author(s):  
Fabian Lang ◽  
Lydia Wunderle ◽  
Susanne Badura ◽  
Eberhard Schleyer ◽  
Monika Brüggemann ◽  
...  
Keyword(s):  
Adverse Events ◽  
Acute Leukemia ◽  
Phase I ◽  
Mtor Inhibitor ◽  
Primary Objective ◽  
Prolonged Treatment ◽  
Small Subset ◽  
Open Label ◽  
Serious Adverse Events ◽  
Efficient Treatment

Abstract Background Combined inhibition of phosphatidylinositol 3-kinase (PI3K) and the mammalian target of rapamycin (mTOR) complexes may be an efficient treatment for acute leukemia. The primary objective of this phase I single center open label study was to determine the maximum tolerated dose (MTD) and recommended phase II dose (RP2D) of the dual pan-class I PI3K and mTOR inhibitor BEZ235 in patients with advanced leukemia. Methods Herein patients > 18 years of age who had relapsed or showed refractory leukemia were treated with BEZ235 (orally at 300-400 mg BID (cohort -1/1)) to assess safety, tolerability, preliminary efficacy and pharmacokinetic (PK). Adverse events data and serious adverse events were analyzed and haematological and clinical biochemistry toxicities were assessed from laboratory test parameters. Response was assessed for the first time at the end of cycle 1 (day 29) and after every subsequent cycle. Pharmacokinetic and pharmacodynamic analyses of BEZ235 were also included (BEZ235 plasma levels, phosphorylation of AKT, S6 and 4EBP1). On statistics this trial is a multiple ascending dose study in which a following variant of the 3+3 rule (“Rolling Six”), a minimum of 6 and a maximum of 12 patients was recruited for the dose escalation and another 5 were planned for the expansion phase.Results Twenty-four patients with ALL (n=11) or AML (n=12) or CML-BP (n=1) were enrolled. All patients had failed one (n=5) or more lines of therapy (n=5) and 14 patients were in refractory / refractory relapse. No formal MTD was defined, stomatitis and gastrointestinal toxicity at 400 mg BID dose was considered incompatible with prolonged treatment. The RP2D of BEZ235 was defined as 300 mg BID. Four of 24 patients showed clinical benefit. Twenty-two of 24 patients discontinued because of progression, (median time to progression 27 days (4d-112d). There was no association between PK parameters and efficacy or tolerability. Conclusions Combined inhibition of PI3K and mTOR inhibits a clinically meaningful driver pathway in a small subset of patients with ALL, with no benefit in patients with AML.Trial registration ClinicalTrials.gov, identifier NCT01756118. registered 19th December 2012, https://clinicaltrials.gov/ct2/show/NCT01756118

scholarly journals A phase I study of a dual PI3-Kinase/mTOR inhibitor BEZ235 in adult patients with relapsed or refractory acute leukemia

2020 ◽  
Author(s):  
Fabian Lang ◽  
Lydia Wunderle ◽  
Susanne Badura ◽  
Eberhard Schleyer ◽  
Monika Brüggemann ◽  
...  
Keyword(s):  
Adverse Events ◽  
Acute Leukemia ◽  
Phase I ◽  
Mtor Inhibitor ◽  
Primary Objective ◽  
Prolonged Treatment ◽  
Small Subset ◽  
Open Label ◽  
Serious Adverse Events ◽  
Efficient Treatment

Abstract Background: Combined inhibition of phosphatidylinositol 3-kinase (PI3K) and the mammalian target of rapamycin (mTOR) complexes may be an efficient treatment for acute leukemia. The primary objective of this phase I single center open label study was to determine the maximum tolerated dose (MTD) and recommended phase II dose (RP2D) of the dual pan-class I PI3K and mTOR inhibitor BEZ235 in patients with advanced leukemia.Methods: Herein patients > 18 years of age who had relapsed or showed refractory leukemia were treated with BEZ235 (orally at 300-400 mg BID (cohort -1/1)) to assess safety, tolerability, preliminary efficacy and pharmacokinetic (PK). Adverse events data and serious adverse events were analyzed and haematological and clinical biochemistry toxicities were assessed from laboratory test parameters. Response was assessed for the first time at the end of cycle 1 (day 29) and after every subsequent cycle. Pharmacokinetic and pharmacodynamic analyses of BEZ235 were also included (BEZ235 plasma levels, phosphorylation of AKT, S6 and 4EBP1). On statistics this trial is a multiple ascending dose study in which a following variant of the 3+3 rule (“Rolling Six”), a minimum of 6 and a maximum of 12 patients was recruited for the dose escalation and another 5 were planned for the expansion phase.Results: Twenty-four patients with ALL (n=11) or AML (n=12) or CML-BP (n=1) were enrolled. All patients had failed one (n=5) or more lines of therapy (n=5) and 14 patients were in refractory / refractory relapse. No formal MTD was defined, stomatitis and gastrointestinal toxicity at 400 mg BID dose was considered incompatible with prolonged treatment. The RP2D of BEZ235 was defined as 300 mg BID. Four of 24 patients showed clinical benefit. Twenty-two of 24 patients discontinued because of progression, (median time to progression 27 days (4d-112d). There was no association between PK parameters and efficacy or tolerability.Conclusions: Combined inhibition of PI3K and mTOR inhibits a clinically meaningful driver pathway in a small subset of patients with ALL, with no benefit in patients with AML.Trial registration: ClinicalTrials.gov, identifier NCT01756118. retrospectively registered 19th December 2012, https://clinicaltrials.gov/ct2/show/NCT01756118.

scholarly journals A phase I study of a dual PI3-Kinase/mTOR inhibitor BEZ235 in adult patients with relapsed or refractory acute leukemia

2020 ◽  
Author(s):  
Fabian Lang ◽  
Lydia Wunderle ◽  
Susanne Badura ◽  
Eberhard Schleyer ◽  
Monika Brüggemann ◽  
...  
Keyword(s):  
Adverse Events ◽  
Acute Leukemia ◽  
Phase I ◽  
Mtor Inhibitor ◽  
Maximum Tolerated Dose ◽  
Primary Objective ◽  
Prolonged Treatment ◽  
Small Subset ◽  
Serious Adverse Events ◽  
Efficient Treatment

Abstract Background Combined inhibition of phosphatidylinositol 3-kinase (PI3K) and the mammalian target of rapamycin (mTOR) complexes may be an efficient treatment for acute leukemia. The primary objective of this phase I single centre open lable study was to determine the maximum tolerated dose (MTD) and recommended phase 2 dose (RP2D) of the dual pan-class I PI3K and mTOR inhibitor BEZ235 in patients with advanced leukemia.Methods Herein patients > 18 years of age who had relapsed or showed refractory leukemia were treated with BEZ235 (orally at 300-400 mg BID (cohort -1/1)) to assess safety, tolerability, preliminary efficacy and pharmakokinetic (PK). Adverse events data and serious adverse events were analyzed and haematological and clinical biochemistry toxicities were assessed from laboratory test parameters. Response was assessed for the first time at the end of cycle 1 (day 29) and after every subsequent cycle. Pharmacokinetic and pharmacodynamic analyses of BEZ235 were also included (BEZ235 plasma levels, phosphorylation of AKT, S6 and 4EBP1). On statistics this trial is a multiple ascending dose study in which a following variant of the 3+3 rule (“Rolling Six”), a minimum of 6 and a maximum of 12 patients was recruited for the dose escalation and another 5 were planned for the expansion phase. Results Twenty-four patients with ALL (n=11) or AML (n=12) or CML-BP (n=1) were enrolled. All patients had failed one (n=5) or more lines of therapy (n=5) and 14 patients were in refractory / refractory relapse. No formal MTD was defined, stomatitis and gastrointestinal toxicity at 400 mg BID dose was considered incompatible with prolonged treatment. The RP2D of BEZ235 was defined as 300 mg BID. Four of 24 patients showed clinical benefit. Twenty-two of 24 patients discontinued because of progression, (median time to progression 27 days (4d-112d). There was no association between PK parameters and efficacy or tolerability. Conclusions Combined inhibition of PI3K and mTOR inhibits a clinically meaningful driver pathway in a small subset of patients with ALL, with no benefit in patients with AML. Trial registration ClinicalTrials.gov, identifier NCT01756118. registered 19th Decembre 2012, https://clinicaltrials.gov/ct2/show/NCT01756118

scholarly journals A phase I study of a dual PI3-kinase/mTOR inhibitor BEZ235 in adult patients with relapsed or refractory acute leukemia

2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Fabian Lang ◽  
Lydia Wunderle ◽  
Susanne Badura ◽  
Eberhard Schleyer ◽  
Monika Brüggemann ◽  
...  
Keyword(s):  
Adverse Events ◽  
Acute Leukemia ◽  
Phase I ◽  
Mtor Inhibitor ◽  
Prolonged Treatment ◽  
Small Subset ◽  
Open Label ◽  
Serious Adverse Events ◽  
Efficient Treatment ◽  
Link Type

Abstract Background Combined inhibition of phosphatidylinositol 3-kinase (PI3K) and the mammalian target of rapamycin (mTOR) complexes may be an efficient treatment for acute leukemia. The primary objective of this phase I single center open label study was to determine the maximum tolerated dose (MTD) and recommended phase II dose (RP2D) of the dual pan-class I PI3K and mTOR inhibitor BEZ235 in patients with advanced leukemia. Methods Herein patients > 18 years of age who had relapsed or showed refractory leukemia were treated with BEZ235 (orally at 300–400 mg BID (cohort − 1/1)) to assess safety, tolerability, preliminary efficacy and pharmacokinetic (PK). Adverse events data and serious adverse events were analyzed and haematological and clinical biochemistry toxicities were assessed from laboratory test parameters. Response was assessed for the first time at the end of cycle 1 (day 29) and after every subsequent cycle. Pharmacokinetic and pharmacodynamic analyses of BEZ235 were also included (BEZ235 plasma levels, phosphorylation of AKT, S6 and 4EBP1). On statistics this trial is a multiple ascending dose study in which a following variant of the 3 + 3 rule (“Rolling Six”), a minimum of 6 and a maximum of 12 patients was recruited for the dose escalation and another 5 were planned for the expansion phase. Results Twenty-four patients with ALL (n = 11) or AML (n = 12) or CML-BP (n = 1) were enrolled. All patients had failed one (n = 5) or more lines of therapy (n = 5) and 14 patients were in refractory / refractory relapse. No formal MTD was defined, stomatitis and gastrointestinal toxicity at 400 mg BID dose was considered incompatible with prolonged treatment. The RP2D of BEZ235 was defined as 300 mg BID. Four of 24 patients showed clinical benefit. Twenty-two of 24 patients discontinued because of progression, (median time to progression 27 days (4d-112d). There was no association between PK parameters and efficacy or tolerability. Conclusions Combined inhibition of PI3K and mTOR inhibits a clinically meaningful driver pathway in a small subset of patients with ALL, with no benefit in patients with AML. Trial registration ClinicalTrials.gov, identifier NCT01756118. retrospectively registered 19th December 2012, https://clinicaltrials.gov/ct2/show/NCT01756118.

Vorinostat in combination with lenalidomide and dexamethasone in patients with relapsed/refractory multiple myeloma: A phase I study

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 8586-8586
Author(s):  
D. S. Siegel ◽  
D. M. Weber ◽  
C. S. Mitsiades ◽  
M. A. Dimopoulos ◽  
J. L. Harousseau ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Phase I ◽  
Dose Escalation ◽  
Complete Response ◽  
Maximum Tolerated Dose ◽  
Primary Objective ◽  
Open Label ◽  
Refractory Multiple Myeloma ◽  
Combination Methods ◽  
Novel Drug

8586 Background: Novel drug combinations may improve patient outcome in relapsed/refractory multiple myeloma (MM), which remains especially challenging to treat. Preclinical studies suggest that the histone deacetylase inhibitor vorinostat may have synergistic potential when combined with lenalidomide and dexamethasone. This phase I, multicenter, open-label study evaluated vorinostat plus lenalidomide and dexamethasone in patients (pts) with relapsed or refractory MM. The primary objective was to determine the maximum tolerated dose (MTD); other endpoints included overall safety and tolerability, as well as activity of the combination. Methods: Pts aged ≥18 years with relapsed or refractory MM were enrolled sequentially into 1 of 5 dosing levels ( Table ) using a standard 3+3 design for ≤8 cycles. Barring dose-limiting toxicities (DLTs) in the first cycle, dose escalation continued until the MTD was established. Response was assessed, and adverse events (AEs) were recorded. Results: Of 12 pts accrued to date, 11 (92%) have experienced ≥1 AE, with drug-related AEs reported by 6 pts (96% ≤Grade 2). The most common drug-related AEs (each in 4 pts) were fatigue and thrombocytopenia. Serious AEs in 2 pts (17%) were not considered drug-related. No pts discontinued due to AEs, and no DLT has been observed to date. Dose escalation to dose level (DL) 4 was achieved as no DLTs were observed in DLs 1–3. The MTD has not yet been reached. Of 11 pts evaluable for efficacy, best responses include: complete response in 1 pt, partial response in 2 pts, minimal response in 2 pts, and stable disease in 3 pts; 3 pts had progressive disease (PD). Currently, 9 pts remain on treatment, with 3 pts discontinuing treatment due to PD. Conclusions: These preliminary data suggest that vorinostat with lenalidomide and dexamethasone represents a well tolerated and active novel oral combination therapy for the treatment of relapsed/refractory MM. [Table: see text] [Table: see text]

Phase I study of NBTXR3 activated by radiotherapy in patients with advanced cancers treated with an anti-PD-1 therapy.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. TPS3173-TPS3173 ◽  
Author(s):  
Colette Shen ◽  
Jessica Frakes ◽  
Jared Weiss ◽  
Jimmy J. Caudell ◽  
Trevor G Hackman ◽  
...  
Keyword(s):  
Phase I ◽  
Phase I Study ◽  
Response Rate ◽  
Checkpoint Inhibitors ◽  
Lung Metastases ◽  
Objective Response ◽  
Intratumoral Injection ◽  
Primary Objective ◽  
Open Label ◽  
Open Label Phase

TPS3173 Background: Despite the past decade of transformative advances in immuno-oncology, the response rate to checkpoint inhibitors (ICIs) remains low (~15%). There is significant interest in developing strategies to overcome resistance to these treatments, thus increasing response rate. Emerging evidence suggests that radiation therapy (RT) could potentially augment the antitumor response to ICIs through synergic effect. However, RT dose and ultimate efficacy are limited by toxicity related to exposure of healthy tissues. NBTXR3 is a first-in-class radioenhancer administered by direct intratumoral injection, designed at the nanoscale to increase RT dose deposition within tumor cells and RT-dependent tumor cell killing, without increasing surrounding normal tissue toxicity. Preclinical and early clinical data suggest NBTXR3 activated by RT can trigger an anti-tumor immune response, producing both local and systemic (abscopal) effects. We hypothesize that NBTXR3 activated by RT, in combination with anti-PD-1 therapy (R3/RT/PD-1), will act synergistically to maximize the local RT effect and produce a systemic response sufficient to increase the proportion of ICI responders or convert ICI non-responders to responders. Methods: This trial [NCT03589339] is a multicenter, open-label, phase I study to evaluate safety and tolerability of R3/RT/PD-1 in three cohorts: (1) Locoregional recurrent or recurrent and metastatic head and neck squamous cell carcinoma (HNSCC) amenable to re-irradiation of the HN field, (2) Lung metastases, or (3) Liver metastases, both from any primary cancer eligible for anti-PD-1 treatment. Approximately two-thirds of patients in each cohort will be anti-PD-1 non-responders. NBTXR3 injected volume is based on a percentage of gross tumor volume (GTV). The primary objective is to determine the R3/RT/PD-1 recommended phase 2 dose in each cohort. Secondary objectives are to evaluate anti-tumor response (objective response rate; ORR), safety and feasibility of NBTXR3 injection, and NBTXR3 body kinetic profile. Exploratory objectives will assess biomarkers of R3/RT/PD-1 response, including PD-L1 status by IHC, as well as mRNA and cytokine immune marker profiling. To date, three patients have been treated, one in cohort 1, two in cohort 2. Clinical trial information: NCT03589339 .

Sign in / Sign up

Export Citation Format

Share Document