A Phase 1b, Randomized, Single-blind, Placebo-controlled, Multiple Ascending Dose (MAD) Study to Assess the Steady-State Pharmacokinetics and DQ8 Blocking Efficacy of Orally Administered IMT-002 in Patients With Type 1 Diabetes and HLA-DQ8

This study is designed to characterize the safety, steady-state pharmacokinetics (PK) of IMT-002, and will serve as a dose range identification for the pharmacodynamic effect of blocking self-antigen presentation in adults with type 1 diabetes (T1D) having the human leukocyte antigen (HLA)-DQ8 gene.

开始日期2020-11-09

申办/合作机构

ImmunoMolecular Therapeutics, Inc.初创企业

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100 项与 D-methyldopa 相关的临床结果

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100 项与 D-methyldopa 相关的转化医学

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100 项与 D-methyldopa 相关的专利（医药）

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项与 D-methyldopa 相关的文献（医药）

2024-05-16·Blood

Daratumumab, carfilzomib, lenalidomide, and dexamethasone with tandem transplant for high-risk newly diagnosed myeloma

Article

作者: Touzeau, Cyrille ; Escoffre, Martine ; Chretien, Marie-Lorraine ; Moreau, Philippe ; Macro, Margaret ; Jacquet, Caroline ; Corre, Jill ; Hulin, Cyrille ; Jobert, Alexandra ; Leleu, Xavier ; Perrot, Aurore ; Avet-Loiseau, Herve ; Planche, Lucie ; Manier, Salomon ; Tiab, Mourad ; Karlin, Lionel

AbstractHigh-risk (HR) cytogenetics are associated with poor outcomes in newly diagnosed multiple myeloma (NDMM), and dedicated studies should address this difficult-to-treat population. The phase 2 study 2018-04 from the Intergroupe Francophone du Myelome evaluated feasibility of an intensive strategy with quadruplet induction and consolidation plus tandem transplant in HR transplant-eligible (TE) NDMM. HR cytogenetics were defined by presence of del(17p), t(4;14), and/or t(14;16). Treatment consisted of daratumumab-carfilzomib-lenalidomide-dexamethasone (D-KRd) induction, autologous stem cell transplantation (ASCT), D-KRd consolidation, second ASCT, and daratumumab-lenalidomide maintenance. The primary end point was feasibility. Fifty patients with previously untreated NDMM were included. Median age was 57. Del(17p), t(4;14), and t(14;16) were found in 40%, 52%, and 20% of patients, respectively. At data cutoff, the study met the primary end point with 36 patients completing second transplant. Twenty patients discontinued the study due to stem cell collection failure (n = 8), disease progression (n = 7), adverse event (n = 4), or consent withdrawal (n = 1). Grade 3 to 4 D-KRd induction/consolidation–related adverse events (>5% of patients) were neutropenia (39%), anemia (12%), thrombocytopenia (7%), and infection (6%). The overall response rate was 100% for patients completing second transplant, including 81% complete response. Premaintenance minimal residual disease (MRD) negativity rate (10–6) was 94%. After a median follow-up of 33 months, the 30-month progression-free survival (PFS) and overall survival were 80% and 91%, respectively. In conclusion, D-KRd with tandem transplant is feasible in patients with HR TE-NDMM and resulted in high response rates and PFS. This trial was registered at www.clinicaltrials.gov as #NCT03606577.

2024-01-01·Journal of Trace Elements in Medicine and Biology

Improvement of the cardiovascular effect of methyldopa by complexation with Zn(II): Synthesis, characterization and mechanism of action

Article

作者: De Giusti, Verónica ; Williams, Patricia A M ; Velez Rueda, Jorge O ; Martinez, Valeria R ; Portiansky, Enrique L ; Ferrer, Evelina G ; Actis Dato, Agustin B

BACKGROUNDthe antihypertensive drug α-methyldopa (MD) stands as one of the extensively used medications for managing hypertension during pregnancy. Zinc deprivation has been associated with many diseases. In this context, the synthesis of a Zn coordination complex [Zn(MD)(OH)(H₂O)₂]·H₂O (ZnMD) provide a promising alternative pathway to improve the biological properties of MD.METHODSZnMD was synthesized and physicochemically characterized. Fluorescence spectral studies were conducted to examine the binding of both, the ligand and the metal with bovine serum albumin (BSA). MD, ZnMD, and ZnCl₂ were administered to spontaneous hypertensive rats (SHR) rats during 8 weeks and blood pressure and echocardiographic parameters were determined. Ex vivo assays were conducted to evaluate levels of reactive oxygen species (ROS), thiobarbituric acid reactive substances (TBARS), and nitric oxide (NO). Cross-sectional area (CSA) and collagen levels of left ventricular cardiomyocytes were also assessed. Furthermore, the expression of NAD(P)H oxidase subunits (gp91^phox and p47^phox) and Superoxide Dismutase 1 (SOD1) was quantified through western blot analysis.RESULTSThe complex exhibited a moderate affinity for binding with BSA showing a spontaneous interaction (indicated by negative ΔG values) and moderate affinity (determined by affinity constant values). The binding process involved the formation of Van der Waals forces and hydrogen bonds. Upon treatment with MD and ZnMD, a reduction in the systolic blood pressure in SHR was observed, being ZnMD more effective than MD (122 ± 8.1 mmHg and 145 ± 5.6 mmHg, at 8th week of treatment, respectively). The ZnMD treatment prevented myocardial hypertrophy, improved the heart function and reduced the cardiac fibrosis, as evidenced by parameters such as left ventricular mass, fractional shortening, and histological studies. In contrast, MD did not show noticeable differences in these parameters. ZnMD regulates negatively the oxidative damage by reducing levels of ROS and lipid peroxidation, as well as the cardiac NAD(P)H oxidase, and increasing SOD1 expression, while MD did not show significant effect. Moreover, cardiac nitric oxide levels were greater in the ZnMD therapy compared to MD treatment.CONCLUSIONBoth MD and ZnMD have the potential to be transported by albumin. Our findings provide important evidence suggesting that this complex could be a potential therapeutic drug for the treatment of hypertension and cardiac hypertrophy and dysfunction.

2023-03-01·Transplantation and Cellular Therapy

Stem Cell Mobilization Yields with Daratumumab- and Lenalidomide-Containing Quadruplet Induction Therapy in Newly Diagnosed Multiple Myeloma: Findings from the MASTER and GRIFFIN Trials

Article

作者: Watts, Nicole L ; Anderson, Larry D ; Cortoos, Annelore ; Shah, Nina ; Thapa, Bicky ; Orlowski, Robert Z ; Holstein, Sarah A ; Costello, Caitlin ; Richardson, Paul G ; Cornell, R Frank ; Rodriguez, Cesar ; Silbermann, Rebecca ; Wildes, Tanya M ; Lin, Thomas S ; Shain, Kenneth H ; Chari, Ajai ; Sborov, Douglas W ; Callander, Natalie ; Dhakal, Binod ; Bal, Susan ; Laubach, Jacob ; Patel, Sharmila ; Jakubowiak, Andrzej ; Costa, Luciano J ; Bumma, Naresh ; Kaufman, Jonathan L ; Medvedova, Eva ; Nathwani, Nitya ; Dholaria, Bhagirathbhai ; Voorhees, Peter M ; Chhabra, Saurabh ; Usmani, Saad Z ; Reeves, Brandi ; Pei, Huiling ; Jerkins, James H ; Schmidt, Timothy ; Cowan, Andrew J

For eligible patients with newly diagnosed multiple myeloma (NDMM), standard of care includes induction therapy followed by autologous stem cell transplantation (ASCT). Daratumumab as monotherapy and in combination treatment is approved across multiple lines of therapy for multiple myeloma (MM), and lenalidomide is an effective and commonly used agent for induction and maintenance therapy in MM. However, there is concern that lenalidomide and daratumumab given as induction therapy might impair mobilization of stem cells for ASCT. Therefore, we assessed stem cell mobilization in patients following frontline induction therapy in the MASTER and GRIFFIN phase 2 clinical studies by examining stem cell mobilization yields, apheresis attempts, and engraftment outcomes for patients from each study. Adult transplantation-eligible patients with NDMM received induction therapy consisting of daratumumab plus carfilzomib/lenalidomide/dexamethasone (D-KRd) for four 28-day cycles in the single-arm MASTER trial or lenalidomide/bortezomib/dexamethasone (RVd) with or without daratumumab (D) for four 21-day cycles in the randomized GRIFFIN trial, followed by stem cell mobilization and ASCT in both studies. Institutional practice differed regarding plerixafor use for stem cell mobilization; the strategies were upfront (ie, planned plerixafor use) or rescue (ie, plerixafor use only after mobilization parameters indicated failure with granulocyte colony-stimulating factor [G-CSF] alone). Descriptive analyses were used to summarize patient characteristics, stem cell mobilization yields, and engraftment outcomes. In MASTER, 116 D-KRd recipients underwent stem cell mobilization and collection at a median of 24 days after completing induction therapy. In GRIFFIN, 175 patients (D-RVd, n = 95; RVd, n = 80) underwent mobilization at a median of 27 days after completing D-RVd induction therapy and 24 days after completing RVd induction therapy. Among those who underwent mobilization and collection, 7% (8 of 116) of D-KRd recipients, 2% (2 of 95) of D-RVd recipients, and 6% (5 of 80) of RVd recipients did not meet the center-specific minimally required CD34⁺ cell yield in the first mobilization attempt; however, nearly all collected sufficient stem cells for ASCT on remobilization. Among patients who underwent mobilization, plerixafor use, either upfront or as a rescue strategy, was higher in patients receiving D-KRd (97%; 112 of 116) and D-RVd (72%; 68 of 95) compared with those receiving RVd (55%; 44 of 80). The median total CD34⁺ cell collection was 6.0 × 10⁶/kg (range, 2.2 to 13.9 × 10⁶/kg) after D-KRd induction, 8.3 × 10⁶/kg (range, 2.6 to 33.0 × 10⁶/kg) after D-RVd induction, and 9.4 × 10⁶/kg (range, 4.1 to 28.7 × 10⁶/kg) after RVd induction; the median days for collection were 2, 2, and 1, respectively. Among patients who underwent mobilization, 98% (114 of 116) of D-KRd patients, 99% (94 of 95) of D-RVd patients, and 98% (78 of 80) of RVd patients underwent ASCT using median CD34⁺ cell doses of 3.2 × 10⁶/kg, 4.2 × 10⁶/kg, and 4.8 × 10⁶/kg, respectively. The median time to neutrophil recovery was 12 days in all 3 treatment groups across the 2 trials. Because both trials used different criteria to define platelet recovery, data on platelet engraftment using the same criteria are not available. Four cycles of daratumumab- and lenalidomide-based quadruplet induction therapy had a minimal impact on stem cell mobilization and allowed predictable stem cell harvesting and engraftment in all patients who underwent ASCT. Upfront plerixafor strategy may be considered, but many patients were successfully collected with the use of G-CSF alone or rescue plerixafor.

100 项与 D-methyldopa 相关的药物交易

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