A phase I, first-in-human, open-label, dose-escalation study of MGD013, a bispecific DART molecule binding PD-1 and LAG-3, in patients with unresectable or metastatic neoplasms.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. 3004-3004
Author(s):  
Jason J. Luke ◽  
Manish R. Patel ◽  
Erika Paige Hamilton ◽  
Bartosz Chmielowski ◽  
Susanna Varkey Ulahannan ◽  
...  

3004 Background: MGD013 is an investigational, first-in-class, Fc-bearing bispecific tetravalent DART molecule designed to bind PD-1 and LAG-3 and sustain/restore the function of exhausted T cells. MGD013 demonstrates ligand blocking properties consistent with anti-PD-1 and anti-LAG-3 benchmark molecules, and improves T cell responses beyond that observed with benchmark or component antibodies alone or in combination. Methods: This study characterizes the safety, tolerability, dose-limiting toxicities, maximum tolerated dose (MTD), PK/PD, and antitumor activity of MGD013 in patients (pts) with advanced solid and hematologic malignancies. Sequential single-pt cohorts were treated with escalating flat doses of MGD013 (1-1200 mg IV every 2 weeks), followed by a 3+3 design. Tumor-specific expansion cohorts are being treated at the recommended Phase 2 dose of 600 mg. Results: At data-cutoff, 50 pts (46% checkpoint-experienced) were treated in Dose Escalation, and 157 pts (32% checkpoint-experienced) in Cohort Expansion. No MTD was defined. Treatment-related adverse events (TRAEs) occurred in 146/207 (70.5%) pts, most commonly fatigue (19%) and nausea (11%). The rate of Grade ≥ 3 TRAEs was 23.2%. Immune-related AEs were consistent with events observed with anti-PD-1 antibodies. Mean half-life was 11 days; peripheral blood flow cytometry analyses confirmed full and sustained on-target binding during treatment at doses ≥ 120 mg. Among 41 response-evaluable [RE] dose escalation pts, 3 confirmed partial responses [cPRs] (triple negative breast cancer [TNBC], mesothelioma, gastric cancer) per RECIST 1.1 were observed, while 21 pts had stable disease [SD]. Among select expansion cohorts, PRs have been observed in epithelial ovarian cancer (n=2; both cPRs, and 7 with SD among 15 RE pts) and TNBC (n=2; 1 cPR, 1 unconfirmed PR [uPR], and 5 with SD among 14 RE pts). In a cohort of pts with HER2+ tumors treated with MGD013 in combination with margetuximab (investigational anti-HER-2 antibody), 3 PRs have been observed (breast [n=2], colorectal [n=1]; 1 cPR, 2 uPRs) and 2 pts with SD among 6 RE pts. Objective responses have been observed in several pts after prior anti-PD-1 therapy. Investigations into potential correlative biomarkers including LAG-3 and PD-1 are ongoing. Conclusions: MGD013, a novel molecule designed to coordinately block PD-1 and LAG-3, has demonstrated an acceptable safety profile and encouraging early evidence of anti-tumor activity. Clinical trial information: NCT03219268 .

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. e14519-e14519
Author(s):  
E. Karapanagiotou ◽  
H. S. Pandha ◽  
G. Hall ◽  
J. Chester ◽  
A. Melcher ◽  
...  

e14519 Background: Reolysin, a wild type reovirus (Dearing strain), replicates preferentially in Ras-activated cancer cells. Preclinical data have demonstrated synergistic tumor kill when reolysin is combined with standard chemotherapies including platinum agents and taxanes, justifying the clinical evaluation of this drug combination. Methods: Pts were initially treated in an open-label, dose-escalating, phase I trial and received iv reolysin, d1–5, iv carboplatin (AUC5), d1, and paclitaxel (175mg/m2), d1, qw3. Reolysin was administered at a starting dose of 3x109 TCID50 and then increased to 1x1010 and 3x1010 TCID50 in cohorts of 3 pts. Primary endpoints for the dose escalation trial were to determine the maximum tolerated dose, dose limiting toxicity (DLT) and to recommend a dose for phase II studies. Secondary endpoints were to evaluate pharmacokinetics, immune response and anti-tumour activity. The primary endpoint for the phase II expansion cohort in head and neck (H&N) pts is to characterize response rate. Results: 17 heavily pre-treated pts (11 M, median age 55 yrs) with advanced cancer: H&N (10), melanoma (4), peritoneal/endometrial cancer (2), and sarcoma (1) have received 82 cycles of treatment to date; 4 pts are still on study. There were no DLTs in the dose escalation. Toxicities were mainly grade 1 and 2 and included: nausea, fatigue, vomiting, myalgia, fever, neutropenia, lymphopenia, thrombocytopenia and hypotension. This combination resulted in a blunting of antiviral immune response as compared to monotherapy virus. Response rates in 15 evaluable patients were partial response (PR) (4 pts), stable disease (SD) (6 pts) and progressive disease (5 pts). Of note, all PRs and 4/5 SDs were in H&N disease. Conclusions: The combination of reolysin and carboplatin/paclitaxel was well tolerated and resulted in disease control in the majority of pts. Significant responses in refractory H&N pts recommended this combination for phase II evaluation. Enrollment is ongoing and randomized studies are planned. [Table: see text]


2014 ◽  
Vol 32 (4_suppl) ◽  
pp. 237-237
Author(s):  
Shunji Takahashi ◽  
Hirofumi Mukai ◽  
Hirotsugu Uemura ◽  
Hiroji Uemura ◽  
Takeo Kosaka ◽  
...  

237 Background: Cabazitaxel (CBZ), a novel taxoid agent, promotes tubulin assembly and stabilizes microtubules, as docetaxel (DTX). CBZ had antitumor activity in DTX-resistant tumor models in vitro. We assessed dose-limiting toxicities (DLTs), safety and efficacy of CBZ in patients (pts) with mCRPC with prior DTX treatment. Methods: This was an open-label, dose escalation study of CBZ every 3 weeks, with daily prednisolone. Two CBZ dose levels (20 or 25 mg/m2) were set in the dose escalation cohort to determine the maximum tolerated dose (MTD). Pts in the expansion cohort received the MTD. DLTs were evaluated at cycle 1 and were defined as follows: Grade (Gr) 4 neutropenia > 7 days, Gr 4 thrombocytopenia, Gr 4 febrile neutropenia (FN), or Gr 3/4 non-hematological toxicities. Gr 3/4 neutropenia was prospectively studied based on occurrence of Gr 3/4 neutropenia during prior DTX treatment. Results: A total of 48 pts received CBZ (median age 66.1 years; ECOG PS: 0, 34 pts; 1, 14 pts; median cumulative DTX dose 753 mg/m2). None of the evaluable pts in the dose escalation cohort experienced a DLT. All pts had at least one Gr 3/4 adverse event (AE). Frequent Gr 3/4 AEs at 25 mg/m2 were neutropenia (44 pts, 100%) and FN (24 pts, 54.5%). G-CSF prophylaxis was not allowed at cycle 1 and was only used in 10% of cycles from cycle 2 onward. Neutropenia occurrence during prior DTX treatment did not affect neutropenia or FN incidence during CBZ treatment. No pt discontinued CBZ due to neutropenia or FN and no toxic death was reported. In total, 12/41 pts (29.3%) had a PSA response, and 2/12 evaluable pts had a partial response as the best overall response. Conclusions: The safety profile of CBZ in Japanese pts was generally consistent with that reported in previous studies. The cumulative dose of prior DTX was higher and use of G-CSF prophylaxis less frequent than in previous studies, which may have contributed to the increased incidence of neutropenia and FN in Japanese pts. The majority of neutropenia and FN events were manageable and did not lead to treatment discontinuation. In terms of safety and efficacy, CBZ has a favourable risk–benefit profile in Japanese pts with mCRPC following prior DTX therapy. Clinical trial information: NCT01324583.


Leukemia ◽  
2013 ◽  
Vol 27 (8) ◽  
pp. 1628-1636 ◽  
Author(s):  
D J DeAngelo ◽  
A Spencer ◽  
K N Bhalla ◽  
H M Prince ◽  
T Fischer ◽  
...  

2018 ◽  
Vol 185 (3) ◽  
pp. 623-627 ◽  
Author(s):  
C. Michel Zwaan ◽  
Stefan Söderhäll ◽  
Benoit Brethon ◽  
Matteo Luciani ◽  
Carmelo Rizzari ◽  
...  

2020 ◽  
Vol 4 (Supplement_1) ◽  
Author(s):  
Amanda Tsang ◽  
Cara Dimino ◽  
Alexander G Khandji ◽  
Sunil Kumar Panigrahi ◽  
Gabrielle Page-Wilson

Abstract Purpose Treatment of hyperprolactinemia and prolactinomas with ergoline dopamine agonists (DAs) can be complicated by intolerance and resistance. Ropinirole (ROP) is a low cost selective D2/D3 receptor non-ergot DA, approved for treatment of Parkinson’s disease and Restless Leg Syndrome, that has been shown to acutely lower prolactin levels (PRL). This study investigated the efficacy and tolerability of long-term ROP therapy in patients with hyperprolactinemia. Methods & Results Ten healthy women (21-45 yrs) with hyperprolactinemia were treated with ROP (0.25-6.0mg/d) for 6 months in an open-label dose escalation study. Clinical and biochemical status was assessed monthly and ROP doses were up-titrated to achieve normal PRL levels, restore menses, and eliminate galactorrhea. Two subjects had macroprolactinomas, 7 had microprolactinomas, and 1 had idiopathic hyperprolactinemia. 8/10 had previously been treated with cabergoline and/or bromocriptine. 5/10 were intolerant and 1/10 was resistant to ergot DAs. Pituitary MRIs were performed at baseline and 6 months.ROP was initiated at 0.25mg QHS in 9/10 subjects. One subject with severe DA intolerance was initiated on 0.125mg QHS. Subjects reaching a total daily dose (TDD) > 2.0mg/d were transitioned to ROP extended release. At study completion, TDDs ranged from 1-6mg/d, with a median TDD of 2mg/d. Baseline PRL levels were 136 ± 49ng/ml (1.9-25ng/ml). Stable PRL normalization was achieved in 50% of subjects. Of the subjects achieving normal PRL, 4 had microadenomas and 1 had idiopathic hyperprolactinemia, and the median effective TDD was 1mg/d (1-4mg/d, range). Among those not achieving PRL normalization, PRL decreased 46 ± 5.4% (Mean ± SEM) from baseline, at a median TDD of 4.0mg/d (2-6mg/d, range). In the subject with documented resistance to ergot DAs, PRL decreased from 529 to 320ng/ml, after 3 months of ROP on the maximum dose studied (6mg/d), but rose to 690ng/ml at 6 months. During ROP treatment, menses normalized in 57%, and galactorrhea resolved in 67% of affected subjects. At study completion, tumor size was unchanged in 7/8 prolactinomas. A 20% decrease in tumor size was observed in one macroadenoma, accompanied by a 30% reduction in PRL levels. There were no changes in BP, HR, weight, renal or kidney function. Mild adverse effects (AEs) were recorded in 80% of subjects. Fatigue (60%), nausea (40%), and headache (20%) were most common. Reported AEs declined after month 1 and ROP was not discontinued due to intolerance. Conclusion These data provide support for the efficacy of ROP in the treatment of hyperprolactinemia in patients with microprolactinomas and idiopathic hyperprolactinemia. While further study is needed, ROP treatment for hyperprolactinemia could be considered in patients with ergot DA intolerance or significant cardiac valve disease.


The Lancet ◽  
2014 ◽  
Vol 384 (9942) ◽  
pp. 504-513 ◽  
Author(s):  
Vincenzo Libri ◽  
Cihangir Yandim ◽  
Stavros Athanasopoulos ◽  
Naomi Loyse ◽  
Theona Natisvili ◽  
...  

2018 ◽  
Vol 81 (4) ◽  
pp. 727-737 ◽  
Author(s):  
Frederik Marmé ◽  
Carlos Gomez-Roca ◽  
Kristina Graudenz ◽  
Funan Huang ◽  
John Lettieri ◽  
...  

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