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Egbuna O, Audard V, Manos G, Tian S, Hagos F, Chertow GM. Safety and Tolerability of the APOL1 Inhibitor, Inaxaplin, following Single- and Multiple-Ascending Doses in Healthy Adults. Glomerular Dis 2024; 4:64-73. [PMID: 38600955 PMCID: PMC11006409 DOI: 10.1159/000538255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 03/01/2024] [Indexed: 04/12/2024]
Abstract
Introduction Toxic gain-of-function Apolipoprotein L1 (APOL1) variants contribute to the development of proteinuric nephropathies collectively referred to as APOL1-mediated kidney disease (AMKD). Despite standard-of-care treatments, patients with AMKD experience accelerated progression to end-stage kidney disease. The identification of two APOL1 variants as the genetic cause of AMKD inspired development of inaxaplin, an inhibitor of APOL1 channel activity that reduces proteinuria in patients with AMKD. Methods We conducted two phase 1 studies evaluating the safety, tolerability, and pharmacokinetics of single-ascending doses (SAD) and multiple-ascending doses (MAD) of inaxaplin in healthy participants. In the SAD cohorts, participants were randomized to receive inaxaplin as a single dose (range, 7.5 mg to 165 mg) or placebo. In the MAD cohorts, participants were randomized to receive multiple doses of inaxaplin (range, 15 to 120 mg daily) or placebo for 14 days. We assessed safety and tolerability based on adverse events (AEs), clinical laboratory values, electrocardiograms (ECGs), and vital signs. Results A total of 178 participants were randomized in the SAD/MAD cohorts of both studies (mean age: 36.7 years; 94.9% male). The proportion of participants with any AEs was similar in the inaxaplin (24.6%) and placebo (22.7%) groups. All AEs were mild or moderate in severity; there were no serious AEs. Headache was the most common AE: 10.4% and 2.3% in the inaxaplin and placebo groups, respectively. There were no drug-related treatment discontinuations and no clinically relevant trends in laboratory values, ECGs, or vital signs. Discussion/Conclusion Inaxaplin is safe and well tolerated at single doses up to 165 mg and multiple doses up to 120 mg daily for 14 days. These results are consistent with the favorable safety profile of inaxaplin in a completed phase 2a proof-of-concept study. Together, these findings support continued evaluation of inaxaplin in an ongoing phase 2/3 pivotal trial as a potential precision medicine for patients with AMKD.
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Affiliation(s)
| | - Vincent Audard
- Nephrology and Renal Transplantation Department, Institut National de la Santé et de la Recherche Médicale (INSERM) U955, Henri Mondor Hospital, Assistance Publique des Hôpitaux de Paris, Paris Est Créteil University, Créteil, France
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Adamou P, Harkou E, Hafeez S, Manos G, Villa A, Al-Salem SM, Constantinou A, Dimitratos N. Recent progress on sonochemical production for the synthesis of efficient photocatalysts and the impact of reactor design. Ultrason Sonochem 2023; 100:106610. [PMID: 37806038 PMCID: PMC10568290 DOI: 10.1016/j.ultsonch.2023.106610] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/18/2023] [Accepted: 09/19/2023] [Indexed: 10/10/2023]
Abstract
Sonochemical-assisted synthesis has flourished recently for the design of photocatalysts. The main power used is ultrasound that allows the nanomaterials shape and size modification and control. This review highlights the effect in formation mechanism by ultrasound application and the most common photocatalysts that were prepared via sonochemical techniques. Moreover, the challenge for the suitable reactor design for the synthesis of materials or for their photocatalytic evaluation is discussed since the most prominent reactor systems, batch, and continuous flow, has both advantages and drawbacks. This work summarises the significance of sonochemical synthesis for photocatalytic materials as a green technology that needs to be further investigated for the preparation of new materials and the scale up of developed reactor systems to meet industrial needs.
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Affiliation(s)
- Panayiota Adamou
- Department of Chemical Engineering Cyprus University of Technology, 57 Corner of Athinon and Anexartisias, 3036 Limassol, Cyprus
| | - Eleana Harkou
- Department of Chemical Engineering Cyprus University of Technology, 57 Corner of Athinon and Anexartisias, 3036 Limassol, Cyprus
| | - Sanaa Hafeez
- School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, the United Kingdom of Great Britain and Northern Ireland
| | - George Manos
- Department of Chemical Engineering, University College London, London WCIE 7JE, the United Kingdom of Great Britain and Northern Ireland
| | - Alberto Villa
- Dipartimento di Chimica, Universitá degli Studi di Milano, via Golgi, 20133 Milan, Italy
| | - S M Al-Salem
- Environment & Life Sciences Research Centre, Kuwait Institute for Scientific Research, P.O. Box: 24885, Safat 13109, Kuwait
| | - Achilleas Constantinou
- Department of Chemical Engineering Cyprus University of Technology, 57 Corner of Athinon and Anexartisias, 3036 Limassol, Cyprus.
| | - Nikolaos Dimitratos
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, viale Risorgimento 4 40136 Bologna, Italy; Center for Chemical Catalysis - C3, University of Bologna, viale Risorgimento 4 40136 Bologna, Italy.
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Harkou E, Hafeez S, Adamou P, Zhang Z, Tsiotsias AI, Charisiou ND, Goula MA, Al-Salem SM, Manos G, Constantinou A. Different reactor configurations for enhancement of CO 2 methanation. Environ Res 2023; 236:116760. [PMID: 37507039 DOI: 10.1016/j.envres.2023.116760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 07/16/2023] [Accepted: 07/26/2023] [Indexed: 07/30/2023]
Abstract
Greenhouse gas emissions are a massive concern for scientists to minimize the effect of global warming in the environment. In this study, packed bed, coated wall, and membrane reactors were investigated using three novel nickel catalysts for the methanation of CO2. CFD modelling methodologies were implemented to develop 2D models. The validity of the model was investigated in a previous study where experimental and simulated results in a packed bed reactor were in a good agreement. It was observed that the coated wall reactor had poorer performance compared to the packed bed, approximately 30% difference between the results, as the residence time of the former was lower. In addition, two membrane configurations were proposed, including a membrane packed bed and membrane coated wall reactor. Additional studies were performed in the coated wall reactor revealing that lower flow rates lead to higher conversion values. As for the bed thickness the optimum layer was found to be 1 mm. In both membrane reactor configurations, the effect of the thickness of M1 membrane, which indicates the membrane for the removal of H2O, didn't show difference while the reduction of the thickness of M2 membrane, which indicates the membrane for the removal of CO2, H2 and H2O, showed better results in terms of conversion.
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Affiliation(s)
- Eleana Harkou
- Department of Chemical Engineering, Cyprus University of Technology, 57 Corner of Athinon and Anexartisias, Limassol, 3036, Cyprus
| | - Sanaa Hafeez
- School of Engineering and Materials Science, Queen Mary University of London, London, E14NS, UK
| | - Panayiota Adamou
- Department of Chemical Engineering, Cyprus University of Technology, 57 Corner of Athinon and Anexartisias, Limassol, 3036, Cyprus
| | - Zhien Zhang
- WilliamG. Lowrie Department of Chemical and Biomolecular Engineerig, The Ohio State University Columbus, OH, 43210, USA
| | - Anastasios I Tsiotsias
- Laboratory of Alternative Fuels and Environmental Catalysis (LAFEC), Department of Chemical Engineering, University of Western Macedonia, GR-50100, Greece
| | - Nikolaos D Charisiou
- Laboratory of Alternative Fuels and Environmental Catalysis (LAFEC), Department of Chemical Engineering, University of Western Macedonia, GR-50100, Greece
| | - Maria A Goula
- Laboratory of Alternative Fuels and Environmental Catalysis (LAFEC), Department of Chemical Engineering, University of Western Macedonia, GR-50100, Greece
| | - S M Al-Salem
- Environmental & Life Sciences Research Centre, Kuwait Institute for Scientific Research, Kuwait
| | - George Manos
- Department of Chemical Engineering, University College London, London, WCIE7JE, UK
| | - Achilleas Constantinou
- Department of Chemical Engineering, Cyprus University of Technology, 57 Corner of Athinon and Anexartisias, Limassol, 3036, Cyprus.
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Harkou E, Adamou P, Georgiou K, Hafeez S, Al-Salem SM, Villa A, Manos G, Dimitratos N, Constantinou A. Computational Studies on Microreactors for the Decomposition of Formic Acid for Hydrogen Production Using Heterogeneous Catalysts. Molecules 2023; 28:5399. [PMID: 37513271 PMCID: PMC10383859 DOI: 10.3390/molecules28145399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 07/11/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
Sustainable alternatives to conventional fuels have emerged recently, focusing on a hydrogen-based economy. The idea of using hydrogen (H2) as an energy carrier is very promising due to its zero-emission properties. The present study investigates the formic acid (FA) decomposition for H2 generation using a commercial 5 wt.% Pd/C catalyst. Three different 2D microreactor configurations (packed bed, single membrane, and double membrane) were studied using computational fluid dynamics (CFD). Parameters such as temperature, porosity, concentration, and flow rate of reactant were investigated. The packed bed configuration resulted in high conversions, but due to catalyst poisoning by carbon monoxide (CO), the catalytic activity decreased with time. For the single and double membrane microreactors, the same trends were observed, but the double membrane microreactor showed superior performance compared with the other configurations. Conversions higher than 80% were achieved, and even though deactivation decreased the conversion after 1 h of reaction, the selective removal of CO from the system with the use of membranes lead to an increase in the conversion afterwards. These results prove that the incorporation of membranes in the system for the separation of CO is improving the efficiency of the microreactor.
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Affiliation(s)
- Eleana Harkou
- Department of Chemical Engineering, Cyprus University of Technology, 57 Corner of Athinon and Anexartisias, Limassol 3036, Cyprus
| | - Panayiota Adamou
- Department of Chemical Engineering, Cyprus University of Technology, 57 Corner of Athinon and Anexartisias, Limassol 3036, Cyprus
| | - Kyproula Georgiou
- Department of Chemical Engineering, Cyprus University of Technology, 57 Corner of Athinon and Anexartisias, Limassol 3036, Cyprus
| | - Sanaa Hafeez
- School of Engineering and Materials Science, Queen Mary University of London, London E14NS, UK
| | - Sultan M Al-Salem
- Environmental & Life Sciences Research Centre, Kuwait Institute for Scientific Research, P.O. Box 24885, Safat 13109, Kuwait
| | - Alberto Villa
- Dipartimento di Chimica, Universitá degli Studi di Milano, via Golgi, 20133 Milan, Italy
| | - George Manos
- Department of Chemical Engineering, University College London, London WCIE7JE, UK
| | - Nikolaos Dimitratos
- Dipartimento di Chimica Industriale "Toso Montanari", Alma Mater Studiorum Università di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
- Center for Chemical Catalysis-C3, Alma Mater Studiorum Università di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - Achilleas Constantinou
- Department of Chemical Engineering, Cyprus University of Technology, 57 Corner of Athinon and Anexartisias, Limassol 3036, Cyprus
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Egbuna O, Zimmerman B, Manos G, Fortier A, Chirieac MC, Dakin LA, Friedman DJ, Bramham K, Campbell K, Knebelmann B, Barisoni L, Falk RJ, Gipson DS, Lipkowitz MS, Ojo A, Bunnage ME, Pollak MR, Altshuler D, Chertow GM. Inaxaplin for Proteinuric Kidney Disease in Persons with Two APOL1 Variants. N Engl J Med 2023; 388:969-979. [PMID: 36920755 DOI: 10.1056/nejmoa2202396] [Citation(s) in RCA: 39] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
BACKGROUND Persons with toxic gain-of-function variants in the gene encoding apolipoprotein L1 (APOL1) are at greater risk for the development of rapidly progressive, proteinuric nephropathy. Despite the known genetic cause, therapies targeting proteinuric kidney disease in persons with two APOL1 variants (G1 or G2) are lacking. METHODS We used tetracycline-inducible APOL1 human embryonic kidney (HEK293) cells to assess the ability of a small-molecule compound, inaxaplin, to inhibit APOL1 channel function. An APOL1 G2-homologous transgenic mouse model of proteinuric kidney disease was used to assess inaxaplin treatment for proteinuria. We then conducted a single-group, open-label, phase 2a clinical study in which inaxaplin was administered to participants who had two APOL1 variants, biopsy-proven focal segmental glomerulosclerosis, and proteinuria (urinary protein-to-creatinine ratio of ≥0.7 to <10 [with protein and creatinine both measured in grams] and an estimated glomerular filtration rate of ≥27 ml per minute per 1.73 m2 of body-surface area). Participants received inaxaplin daily for 13 weeks (15 mg for 2 weeks and 45 mg for 11 weeks) along with standard care. The primary outcome was the percent change from the baseline urinary protein-to-creatinine ratio at week 13 in participants who had at least 80% adherence to inaxaplin therapy. Safety was also assessed. RESULTS In preclinical studies, inaxaplin selectively inhibited APOL1 channel function in vitro and reduced proteinuria in the mouse model. Sixteen participants were enrolled in the phase 2a study. Among the 13 participants who were treated with inaxaplin and met the adherence threshold, the mean change from the baseline urinary protein-to-creatinine ratio at week 13 was -47.6% (95% confidence interval, -60.0 to -31.3). In an analysis that included all the participants regardless of adherence to inaxaplin therapy, reductions similar to those in the primary analysis were observed in all but 1 participant. Adverse events were mild or moderate in severity; none led to study discontinuation. CONCLUSIONS Targeted inhibition of APOL1 channel function with inaxaplin reduced proteinuria in participants with two APOL1 variants and focal segmental glomerulosclerosis. (Funded by Vertex Pharmaceuticals; VX19-147-101 ClinicalTrials.gov number, NCT04340362.).
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Affiliation(s)
- Ogo Egbuna
- From Vertex Pharmaceuticals (O.E., B.Z., G.M., A.F., M.C.C., L.A.D., M.E.B., D.A.), and Beth Israel Deaconess Medical Center, Harvard Medical School (D.J.F., M.R.P.) - both in Boston; King's College London, London (K.B.); Icahn School of Medicine at Mount Sinai, New York (K.C.); Necker Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris (B.K.); Duke University, Durham (L.B.), and the University of North Carolina at Chapel Hill, Chapel Hill (R.J.F.) - both in North Carolina; the University of Michigan, Ann Arbor (D.S.G.); Georgetown University Hospital, Washington, DC (M.S.L.); University of Kansas School of Medicine, Kansas City (A.O.); and Stanford University School of Medicine, Palo Alto, CA (G.M.C.)
| | - Brandon Zimmerman
- From Vertex Pharmaceuticals (O.E., B.Z., G.M., A.F., M.C.C., L.A.D., M.E.B., D.A.), and Beth Israel Deaconess Medical Center, Harvard Medical School (D.J.F., M.R.P.) - both in Boston; King's College London, London (K.B.); Icahn School of Medicine at Mount Sinai, New York (K.C.); Necker Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris (B.K.); Duke University, Durham (L.B.), and the University of North Carolina at Chapel Hill, Chapel Hill (R.J.F.) - both in North Carolina; the University of Michigan, Ann Arbor (D.S.G.); Georgetown University Hospital, Washington, DC (M.S.L.); University of Kansas School of Medicine, Kansas City (A.O.); and Stanford University School of Medicine, Palo Alto, CA (G.M.C.)
| | - George Manos
- From Vertex Pharmaceuticals (O.E., B.Z., G.M., A.F., M.C.C., L.A.D., M.E.B., D.A.), and Beth Israel Deaconess Medical Center, Harvard Medical School (D.J.F., M.R.P.) - both in Boston; King's College London, London (K.B.); Icahn School of Medicine at Mount Sinai, New York (K.C.); Necker Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris (B.K.); Duke University, Durham (L.B.), and the University of North Carolina at Chapel Hill, Chapel Hill (R.J.F.) - both in North Carolina; the University of Michigan, Ann Arbor (D.S.G.); Georgetown University Hospital, Washington, DC (M.S.L.); University of Kansas School of Medicine, Kansas City (A.O.); and Stanford University School of Medicine, Palo Alto, CA (G.M.C.)
| | - Anne Fortier
- From Vertex Pharmaceuticals (O.E., B.Z., G.M., A.F., M.C.C., L.A.D., M.E.B., D.A.), and Beth Israel Deaconess Medical Center, Harvard Medical School (D.J.F., M.R.P.) - both in Boston; King's College London, London (K.B.); Icahn School of Medicine at Mount Sinai, New York (K.C.); Necker Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris (B.K.); Duke University, Durham (L.B.), and the University of North Carolina at Chapel Hill, Chapel Hill (R.J.F.) - both in North Carolina; the University of Michigan, Ann Arbor (D.S.G.); Georgetown University Hospital, Washington, DC (M.S.L.); University of Kansas School of Medicine, Kansas City (A.O.); and Stanford University School of Medicine, Palo Alto, CA (G.M.C.)
| | - Madalina C Chirieac
- From Vertex Pharmaceuticals (O.E., B.Z., G.M., A.F., M.C.C., L.A.D., M.E.B., D.A.), and Beth Israel Deaconess Medical Center, Harvard Medical School (D.J.F., M.R.P.) - both in Boston; King's College London, London (K.B.); Icahn School of Medicine at Mount Sinai, New York (K.C.); Necker Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris (B.K.); Duke University, Durham (L.B.), and the University of North Carolina at Chapel Hill, Chapel Hill (R.J.F.) - both in North Carolina; the University of Michigan, Ann Arbor (D.S.G.); Georgetown University Hospital, Washington, DC (M.S.L.); University of Kansas School of Medicine, Kansas City (A.O.); and Stanford University School of Medicine, Palo Alto, CA (G.M.C.)
| | - Leslie A Dakin
- From Vertex Pharmaceuticals (O.E., B.Z., G.M., A.F., M.C.C., L.A.D., M.E.B., D.A.), and Beth Israel Deaconess Medical Center, Harvard Medical School (D.J.F., M.R.P.) - both in Boston; King's College London, London (K.B.); Icahn School of Medicine at Mount Sinai, New York (K.C.); Necker Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris (B.K.); Duke University, Durham (L.B.), and the University of North Carolina at Chapel Hill, Chapel Hill (R.J.F.) - both in North Carolina; the University of Michigan, Ann Arbor (D.S.G.); Georgetown University Hospital, Washington, DC (M.S.L.); University of Kansas School of Medicine, Kansas City (A.O.); and Stanford University School of Medicine, Palo Alto, CA (G.M.C.)
| | - David J Friedman
- From Vertex Pharmaceuticals (O.E., B.Z., G.M., A.F., M.C.C., L.A.D., M.E.B., D.A.), and Beth Israel Deaconess Medical Center, Harvard Medical School (D.J.F., M.R.P.) - both in Boston; King's College London, London (K.B.); Icahn School of Medicine at Mount Sinai, New York (K.C.); Necker Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris (B.K.); Duke University, Durham (L.B.), and the University of North Carolina at Chapel Hill, Chapel Hill (R.J.F.) - both in North Carolina; the University of Michigan, Ann Arbor (D.S.G.); Georgetown University Hospital, Washington, DC (M.S.L.); University of Kansas School of Medicine, Kansas City (A.O.); and Stanford University School of Medicine, Palo Alto, CA (G.M.C.)
| | - Kate Bramham
- From Vertex Pharmaceuticals (O.E., B.Z., G.M., A.F., M.C.C., L.A.D., M.E.B., D.A.), and Beth Israel Deaconess Medical Center, Harvard Medical School (D.J.F., M.R.P.) - both in Boston; King's College London, London (K.B.); Icahn School of Medicine at Mount Sinai, New York (K.C.); Necker Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris (B.K.); Duke University, Durham (L.B.), and the University of North Carolina at Chapel Hill, Chapel Hill (R.J.F.) - both in North Carolina; the University of Michigan, Ann Arbor (D.S.G.); Georgetown University Hospital, Washington, DC (M.S.L.); University of Kansas School of Medicine, Kansas City (A.O.); and Stanford University School of Medicine, Palo Alto, CA (G.M.C.)
| | - Kirk Campbell
- From Vertex Pharmaceuticals (O.E., B.Z., G.M., A.F., M.C.C., L.A.D., M.E.B., D.A.), and Beth Israel Deaconess Medical Center, Harvard Medical School (D.J.F., M.R.P.) - both in Boston; King's College London, London (K.B.); Icahn School of Medicine at Mount Sinai, New York (K.C.); Necker Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris (B.K.); Duke University, Durham (L.B.), and the University of North Carolina at Chapel Hill, Chapel Hill (R.J.F.) - both in North Carolina; the University of Michigan, Ann Arbor (D.S.G.); Georgetown University Hospital, Washington, DC (M.S.L.); University of Kansas School of Medicine, Kansas City (A.O.); and Stanford University School of Medicine, Palo Alto, CA (G.M.C.)
| | - Bertrand Knebelmann
- From Vertex Pharmaceuticals (O.E., B.Z., G.M., A.F., M.C.C., L.A.D., M.E.B., D.A.), and Beth Israel Deaconess Medical Center, Harvard Medical School (D.J.F., M.R.P.) - both in Boston; King's College London, London (K.B.); Icahn School of Medicine at Mount Sinai, New York (K.C.); Necker Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris (B.K.); Duke University, Durham (L.B.), and the University of North Carolina at Chapel Hill, Chapel Hill (R.J.F.) - both in North Carolina; the University of Michigan, Ann Arbor (D.S.G.); Georgetown University Hospital, Washington, DC (M.S.L.); University of Kansas School of Medicine, Kansas City (A.O.); and Stanford University School of Medicine, Palo Alto, CA (G.M.C.)
| | - Laura Barisoni
- From Vertex Pharmaceuticals (O.E., B.Z., G.M., A.F., M.C.C., L.A.D., M.E.B., D.A.), and Beth Israel Deaconess Medical Center, Harvard Medical School (D.J.F., M.R.P.) - both in Boston; King's College London, London (K.B.); Icahn School of Medicine at Mount Sinai, New York (K.C.); Necker Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris (B.K.); Duke University, Durham (L.B.), and the University of North Carolina at Chapel Hill, Chapel Hill (R.J.F.) - both in North Carolina; the University of Michigan, Ann Arbor (D.S.G.); Georgetown University Hospital, Washington, DC (M.S.L.); University of Kansas School of Medicine, Kansas City (A.O.); and Stanford University School of Medicine, Palo Alto, CA (G.M.C.)
| | - Ronald J Falk
- From Vertex Pharmaceuticals (O.E., B.Z., G.M., A.F., M.C.C., L.A.D., M.E.B., D.A.), and Beth Israel Deaconess Medical Center, Harvard Medical School (D.J.F., M.R.P.) - both in Boston; King's College London, London (K.B.); Icahn School of Medicine at Mount Sinai, New York (K.C.); Necker Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris (B.K.); Duke University, Durham (L.B.), and the University of North Carolina at Chapel Hill, Chapel Hill (R.J.F.) - both in North Carolina; the University of Michigan, Ann Arbor (D.S.G.); Georgetown University Hospital, Washington, DC (M.S.L.); University of Kansas School of Medicine, Kansas City (A.O.); and Stanford University School of Medicine, Palo Alto, CA (G.M.C.)
| | - Debbie S Gipson
- From Vertex Pharmaceuticals (O.E., B.Z., G.M., A.F., M.C.C., L.A.D., M.E.B., D.A.), and Beth Israel Deaconess Medical Center, Harvard Medical School (D.J.F., M.R.P.) - both in Boston; King's College London, London (K.B.); Icahn School of Medicine at Mount Sinai, New York (K.C.); Necker Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris (B.K.); Duke University, Durham (L.B.), and the University of North Carolina at Chapel Hill, Chapel Hill (R.J.F.) - both in North Carolina; the University of Michigan, Ann Arbor (D.S.G.); Georgetown University Hospital, Washington, DC (M.S.L.); University of Kansas School of Medicine, Kansas City (A.O.); and Stanford University School of Medicine, Palo Alto, CA (G.M.C.)
| | - Michael S Lipkowitz
- From Vertex Pharmaceuticals (O.E., B.Z., G.M., A.F., M.C.C., L.A.D., M.E.B., D.A.), and Beth Israel Deaconess Medical Center, Harvard Medical School (D.J.F., M.R.P.) - both in Boston; King's College London, London (K.B.); Icahn School of Medicine at Mount Sinai, New York (K.C.); Necker Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris (B.K.); Duke University, Durham (L.B.), and the University of North Carolina at Chapel Hill, Chapel Hill (R.J.F.) - both in North Carolina; the University of Michigan, Ann Arbor (D.S.G.); Georgetown University Hospital, Washington, DC (M.S.L.); University of Kansas School of Medicine, Kansas City (A.O.); and Stanford University School of Medicine, Palo Alto, CA (G.M.C.)
| | - Akinlolu Ojo
- From Vertex Pharmaceuticals (O.E., B.Z., G.M., A.F., M.C.C., L.A.D., M.E.B., D.A.), and Beth Israel Deaconess Medical Center, Harvard Medical School (D.J.F., M.R.P.) - both in Boston; King's College London, London (K.B.); Icahn School of Medicine at Mount Sinai, New York (K.C.); Necker Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris (B.K.); Duke University, Durham (L.B.), and the University of North Carolina at Chapel Hill, Chapel Hill (R.J.F.) - both in North Carolina; the University of Michigan, Ann Arbor (D.S.G.); Georgetown University Hospital, Washington, DC (M.S.L.); University of Kansas School of Medicine, Kansas City (A.O.); and Stanford University School of Medicine, Palo Alto, CA (G.M.C.)
| | - Mark E Bunnage
- From Vertex Pharmaceuticals (O.E., B.Z., G.M., A.F., M.C.C., L.A.D., M.E.B., D.A.), and Beth Israel Deaconess Medical Center, Harvard Medical School (D.J.F., M.R.P.) - both in Boston; King's College London, London (K.B.); Icahn School of Medicine at Mount Sinai, New York (K.C.); Necker Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris (B.K.); Duke University, Durham (L.B.), and the University of North Carolina at Chapel Hill, Chapel Hill (R.J.F.) - both in North Carolina; the University of Michigan, Ann Arbor (D.S.G.); Georgetown University Hospital, Washington, DC (M.S.L.); University of Kansas School of Medicine, Kansas City (A.O.); and Stanford University School of Medicine, Palo Alto, CA (G.M.C.)
| | - Martin R Pollak
- From Vertex Pharmaceuticals (O.E., B.Z., G.M., A.F., M.C.C., L.A.D., M.E.B., D.A.), and Beth Israel Deaconess Medical Center, Harvard Medical School (D.J.F., M.R.P.) - both in Boston; King's College London, London (K.B.); Icahn School of Medicine at Mount Sinai, New York (K.C.); Necker Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris (B.K.); Duke University, Durham (L.B.), and the University of North Carolina at Chapel Hill, Chapel Hill (R.J.F.) - both in North Carolina; the University of Michigan, Ann Arbor (D.S.G.); Georgetown University Hospital, Washington, DC (M.S.L.); University of Kansas School of Medicine, Kansas City (A.O.); and Stanford University School of Medicine, Palo Alto, CA (G.M.C.)
| | - David Altshuler
- From Vertex Pharmaceuticals (O.E., B.Z., G.M., A.F., M.C.C., L.A.D., M.E.B., D.A.), and Beth Israel Deaconess Medical Center, Harvard Medical School (D.J.F., M.R.P.) - both in Boston; King's College London, London (K.B.); Icahn School of Medicine at Mount Sinai, New York (K.C.); Necker Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris (B.K.); Duke University, Durham (L.B.), and the University of North Carolina at Chapel Hill, Chapel Hill (R.J.F.) - both in North Carolina; the University of Michigan, Ann Arbor (D.S.G.); Georgetown University Hospital, Washington, DC (M.S.L.); University of Kansas School of Medicine, Kansas City (A.O.); and Stanford University School of Medicine, Palo Alto, CA (G.M.C.)
| | - Glenn M Chertow
- From Vertex Pharmaceuticals (O.E., B.Z., G.M., A.F., M.C.C., L.A.D., M.E.B., D.A.), and Beth Israel Deaconess Medical Center, Harvard Medical School (D.J.F., M.R.P.) - both in Boston; King's College London, London (K.B.); Icahn School of Medicine at Mount Sinai, New York (K.C.); Necker Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris (B.K.); Duke University, Durham (L.B.), and the University of North Carolina at Chapel Hill, Chapel Hill (R.J.F.) - both in North Carolina; the University of Michigan, Ann Arbor (D.S.G.); Georgetown University Hospital, Washington, DC (M.S.L.); University of Kansas School of Medicine, Kansas City (A.O.); and Stanford University School of Medicine, Palo Alto, CA (G.M.C.)
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6
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Adamou P, Bellomi S, Hafeez S, Harkou E, Al-Salem S, Villa A, Dimitratos N, Manos G, Constantinou A. Recent progress for hydrogen production from ammonia and hydrous hydrazine decomposition: A review on heterogeneous catalysts. Catal Today 2023. [DOI: 10.1016/j.cattod.2023.01.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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7
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Hafeez S, Al-Salem SM, Bansode A, Villa A, Dimitratos N, Manos G, Constantinou A. Computational Investigation of Microreactor Configurations for Hydrogen Production from Formic Acid Decomposition Using a Pd/C Catalyst. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04128] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sanaa Hafeez
- Department of Chemical Engineering, University College London, London WCIE 7JE, UK
| | - Sultan M. Al-Salem
- Environment & Life Sciences Research Centre, Kuwait Institute for Scientific Research, P.O. Box: 24885, Safat 13109, Kuwait
| | - Atul Bansode
- Catalysis Engineering, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, Netherlands
| | - Alberto Villa
- Dipartimento di Chimica, Universitá degli Studi di Milano, via Golgi, 20133 Milan, Italy
| | - Nikolaos Dimitratos
- Dipartimento di Chimica Industriale e dei Materiali, ALMA MATER STUDIORUM Università di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - George Manos
- Department of Chemical Engineering, University College London, London WCIE 7JE, UK
| | - Achilleas Constantinou
- Department of Chemical Engineering, Cyprus University of Technology, 57 Corner of Athinon and Anexartisias, 3036 Limassol, Cyprus
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8
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Hafeez S, Harkou E, Al-Salem SM, Goula MA, Dimitratos N, Charisiou ND, Villa A, Bansode A, Leeke G, Manos G, Constantinou A. Hydrogenation of carbon dioxide (CO2) to fuels in microreactors: a review of set-ups and value-added chemicals production. REACT CHEM ENG 2022. [DOI: 10.1039/d1re00479d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A review of CO2 hydrogenation to fuels and value-added chemicals in microreactors.
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Affiliation(s)
- Sanaa Hafeez
- Department of Chemical Engineering, University College London, London WCIE 7JE, UK
| | - Eleana Harkou
- Department of Chemical Engineering, Cyprus University of Technology, 57 Corner of Athinon and Anexartisias, 3036 Limassol, Cyprus
| | - Sultan M. Al-Salem
- Environment & Life Sciences Research Centre, Kuwait Institute for Scientific Research, P.O. Box: 24885, Safat 13109, Kuwait
| | - Maria A. Goula
- Laboratory of Alternative Fuels and Environmental Catalysis (LAFEC), Department of Chemical Engineering, University of Western Macedonia, GR-50100, Greece
| | - Nikolaos Dimitratos
- Dipartimento di Chimica Industriale e dei Materiali, ALMA MATER STUDIORUM Università di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - Nikolaos D. Charisiou
- Laboratory of Alternative Fuels and Environmental Catalysis (LAFEC), Department of Chemical Engineering, University of Western Macedonia, GR-50100, Greece
| | - Alberto Villa
- Dipartimento di Chimica, Universitá degli Studi di Milano, via Golgi, 20133 Milan, Italy
| | - Atul Bansode
- Catalysis Engineering, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, Netherlands
| | - Gary Leeke
- School of Chemical Engineering, University of Birmingham, B15 2TT, UK
| | - George Manos
- Department of Chemical Engineering, University College London, London WCIE 7JE, UK
| | - Achilleas Constantinou
- Department of Chemical Engineering, Cyprus University of Technology, 57 Corner of Athinon and Anexartisias, 3036 Limassol, Cyprus
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9
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Hafeez S, Safdar T, Pallari E, Manos G, Aristodemou E, Zhang Z, Al-Salem SM, Constantinou A. CO2 capture using membrane contactors: a systematic literature review. Front Chem Sci Eng 2020. [DOI: 10.1007/s11705-020-1992-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
AbstractWith fossil fuel being the major source of energy, CO2 emission levels need to be reduced to a minimal amount namely from anthropogenic sources. Energy consumption is expected to rise by 48% in the next 30 years, and global warming is becoming an alarming issue which needs to be addressed on a thorough technical basis. Nonetheless, exploring CO2 capture using membrane contactor technology has shown great potential to be applied and utilised by industry to deal with post- and pre-combustion of CO2. A systematic review of the literature has been conducted to analyse and assess CO2 removal using membrane contactors for capturing techniques in industrial processes. The review began with a total of 2650 papers, which were obtained from three major databases, and then were excluded down to a final number of 525 papers following a defined set of criteria. The results showed that the use of hollow fibre membranes have demonstrated popularity, as well as the use of amine solvents for CO2 removal. This current systematic review in CO2 removal and capture is an important milestone in the synthesis of up to date research with the potential to serve as a benchmark databank for further research in similar areas of work. This study provides the first systematic enquiry in the evidence to research further sustainable methods to capture and separate CO2.
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10
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Hafeez S, Aristodemou E, Manos G, Al-Salem SM, Constantinou A. Modelling of packed bed and coated wall microreactors for methanol steam reforming for hydrogen production. RSC Adv 2020; 10:41680-41692. [PMID: 35516550 PMCID: PMC9057832 DOI: 10.1039/d0ra06834a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 11/02/2020] [Indexed: 11/29/2022] Open
Abstract
A Computational Fluid Dynamics (CFD) study has been conducted to assess the performance of packed bed and coated wall microreactors for the steam reforming of methanol with a CuO/ZnO/Al2O3 based catalyst (BASF F3-01). The results obtained were compared to experimental data from the literature to assess the validity and robustness of the models, and a good validation has been obtained. The performance of the packed bed and coated wall microreactors is similar at a constant reforming temperature. It was found that methanol conversion is enhanced with increasing temperature, residence time, steam to methanol ratio, and catalyst coating thickness. Furthermore, internal and external mass transfer phenomena were investigated using the models, and it was found that there were no internal and external mass transfer resistances for this reactor configuration. Further studies demonstrated that larger catalyst pellet sizes led to the presence of internal mass transfer resistance, which in turn causes lower methanol conversions. The CFD models have exhibited a sound agreement with the experimental data, hence they can be used to predict the steam reforming of methanol in microreactors. A Computational Fluid Dynamics (CFD) study has been conducted to assess the performance of packed bed and coated wall microreactors for the steam reforming of methanol with a CuO/ZnO/Al2O3 based catalyst (BASF F3-01).![]()
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Affiliation(s)
- Sanaa Hafeez
- Division of Chemical & Energy Engineering, School of Engineering, London South Bank University London SE1 0AA UK +44 (0)20 7815 7185
| | - Elsa Aristodemou
- Division of Chemical & Energy Engineering, School of Engineering, London South Bank University London SE1 0AA UK +44 (0)20 7815 7185
| | - George Manos
- Department of Chemical Engineering, University College London London WCIE 7JE UK
| | - S M Al-Salem
- Environment & Life Sciences Research Centre, Kuwait Institute for Scientific Research P. O. Box: 24885 Safat 13109 Kuwait
| | - Achilleas Constantinou
- Division of Chemical & Energy Engineering, School of Engineering, London South Bank University London SE1 0AA UK +44 (0)20 7815 7185.,Department of Chemical Engineering, University College London London WCIE 7JE UK.,Department of Chemical Engineering, Cyprus University of Technology 57 Corner of Athinon and Anexartisias 3036 Limassol Cyprus
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11
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Dunne LJ, Manos G. Exact matrix treatment of the statistical mechanics of adsorption of large aromatic molecules on graphene. Phys Chem Chem Phys 2020; 22:12113-12119. [PMID: 32441296 DOI: 10.1039/d0cp00255k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Experimental studies of adsorption from solution of the large aromatic molecules 1,2-dihydroxybenzene (catechol) and phenyl hydroquinone on graphene nanoplatelets show that at low coverage adsorption is followed by a transition which occurs from adsorbed molecules in flat to more vertically oriented states. Catechol adsorption isotherms exhibit 2 plateaus while phenyl hydroquinone shows 3 plateaus indicating 2 and 3 active conformers respectively participating in the adsorption process. Modelling such adsorption isotherms presents a challenge. Here, an exact matrix treatment of the statistical mechanics of a one-dimensional model of adsorption of catechol and dihydroquinone on graphene nanoplatelets is presented. The theoretical adsorption isotherms successfully reproduce all the features of both the catechol and dihydroquinone experimental adsorption isotherms. As suggested by the experimentalists, our theoretical model demonstrates that adsorbed phenyl hydroquinone molecules adopt a flat orientation at low concentrations and an edge orientation at higher coverage before eventually adopting a vertical configuration. Both catechol and phenyl hydroquinone can be described by our interconvertible monomer-dimer-trimer model. The theoretical adsorption isotherms obtained show several plateaus reflecting the types of conformer on the graphene surface.
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Affiliation(s)
- Lawrence J Dunne
- School of Engineering, London South Bank University, London SE1 0AA, UK.
| | - George Manos
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK.
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12
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Hafeez S, Aristodemou E, Manos G, Al-Salem SM, Constantinou A. Computational fluid dynamics (CFD) and reaction modelling study of bio-oil catalytic hydrodeoxygenation in microreactors. REACT CHEM ENG 2020. [DOI: 10.1039/d0re00102c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A computational fluid dynamics (CFD) model was derived and validated in order to investigate the hydrodeoxygenation reaction of 4-propylguaiacol, which is a lignin-derived compound present in bio-oil.
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Affiliation(s)
- Sanaa Hafeez
- Division of Chemical & Petroleum Engineering
- School of Engineering
- London South Bank University
- London SE1 0AA
- UK
| | - Elsa Aristodemou
- Division of Chemical & Petroleum Engineering
- School of Engineering
- London South Bank University
- London SE1 0AA
- UK
| | - George Manos
- Department of Chemical Engineering
- University College London
- London WCIE 7JE
- UK
| | - S. M. Al-Salem
- Environment & Life Sciences Research Centre
- Kuwait Institute for Scientific Research
- Safat 13109
- Kuwait
| | - Achilleas Constantinou
- Division of Chemical & Petroleum Engineering
- School of Engineering
- London South Bank University
- London SE1 0AA
- UK
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13
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Majed Al-Salem S, Constantinou A, Leeke GA, Hafeez S, Safdar T, Karam HJ, Al-Qassimi M, Al-Dhafeeri AT, Manos G, Arena U. A review of the valorization and management of industrial spent catalyst waste in the context of sustainable practice: The case of the State of Kuwait in parallel to European industry. Waste Manag Res 2019; 37:1127-1141. [PMID: 31571531 DOI: 10.1177/0734242x19876689] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Industrial solid waste management encompasses a vital part of developed and developing countries strategies alike. It manages waste generated from vital industries and governs the hazardous waste generated as a major component of integrated waste management strategies. This article reviews the practices that govern the management approaches utilized in the developed world for industrial spent catalysts. It critically assesses the current situation of waste management within the developing world region focusing on the industrial waste component, in a novel attempt to crucially develop a strategy for a way forward based on best practices and future directions with major European industries. The review also draws parallels with European countries to compare their practices with those of the State of Kuwait, which rely solely on landfilling for the management of its industrial waste. Spent catalysts recovery methods are discussed at length covering conventional methods of valuable metals and chemicals recovery (e.g., hydrometallurgical, solid-liquid and liquid-liquid extraction) as well as biological recovery methods. A major gap exists within regulations that govern the practice of managing industrial waste in Kuwait, where it is essential to start regulating industries that generate spent catalysts in-view of encouraging the establishment of valorization industries for metal and chemical recovery. This will also create a sustainable practice within state borders, and can reduce the environmental impact of landfilling such waste in Kuwait.
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Affiliation(s)
- Sultan Majed Al-Salem
- Environment and Life Sciences Research Centre, Kuwait Institute for Scientific Research, Safat, Kuwait
| | - Achilleas Constantinou
- Division of Chemical and Petroleum Engineering, School of Engineering, London South Bank University, London, UK
- Department of Chemical Engineering, University College London, London, UK
| | - Gary Anthony Leeke
- School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham, UK
| | - Sanaa Hafeez
- Division of Chemical and Petroleum Engineering, School of Engineering, London South Bank University, London, UK
| | - Tayeba Safdar
- Division of Chemical and Petroleum Engineering, School of Engineering, London South Bank University, London, UK
| | - Hajar Jawad Karam
- Environment and Life Sciences Research Centre, Kuwait Institute for Scientific Research, Safat, Kuwait
| | - Masumah Al-Qassimi
- Environment and Life Sciences Research Centre, Kuwait Institute for Scientific Research, Safat, Kuwait
| | | | - George Manos
- Department of Chemical Engineering, University College London, London, UK
| | - Umberto Arena
- Department of Environmental, Biological Pharmaceutical Sciences and Technologies - University of Campania "Luigi Vanvitelli", Caserta, Italy
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14
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Antelava A, Damilos S, Hafeez S, Manos G, Al-Salem SM, Sharma BK, Kohli K, Constantinou A. Plastic Solid Waste (PSW) in the Context of Life Cycle Assessment (LCA) and Sustainable Management. Environ Manage 2019; 64:230-244. [PMID: 31230103 PMCID: PMC6687704 DOI: 10.1007/s00267-019-01178-3] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 06/03/2019] [Indexed: 05/25/2023]
Abstract
Over the past few decades, life cycle assessment (LCA) has been established as a critical tool for the evaluation of the environmental burdens of chemical processes and materials cycles. The increasing amount of plastic solid waste (PSW) in landfills has raised serious concern worldwide for the most effective treatment. Thermochemical post-treatment processes, such as pyrolysis, seem to be the most appropriate method to treat this type of waste in an effective manner. This is because such processes lead to the production of useful chemicals, or hydrocarbon oil of high calorific value (i.e. bio-oil in the case of pyrolysis). LCA appears to be the most appropriate tool for the process design from an environmental context. However, addressed limitations including initial assumptions, functional unit and system boundaries, as well as lack of regional database and exclusion of socio-economic aspects, may hinder the final decision. This review aims to address the benefits of pyrolysis as a method for PSW treatment and raise the limitations and gaps of conducted research via an environmental standpoint.
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Affiliation(s)
- Ana Antelava
- Division of Chemical & Petroleum Engineering, School of Engineering, London South Bank University, London, SE1 0AA, UK
| | - Spyridon Damilos
- Department of Chemical Engineering, University College London (UCL), London, WCIE 7JE, UK
| | - Sanaa Hafeez
- Division of Chemical & Petroleum Engineering, School of Engineering, London South Bank University, London, SE1 0AA, UK
| | - George Manos
- Department of Chemical Engineering, University College London (UCL), London, WCIE 7JE, UK
| | - Sultan M Al-Salem
- Environment & Life Sciences Research Centre, Kuwait Institute for Scientific Research, P.O. Box 24885, Safat, 13109, Kuwait
| | - Brajendra K Sharma
- Illinois Sustainable Technology Center, Prairie Research Institute, University of Illinois, Urbana-Champaign, 1 Hazelwood Dr., Champaign, IL, 61820, USA
| | - Kirtika Kohli
- Illinois Sustainable Technology Center, Prairie Research Institute, University of Illinois, Urbana-Champaign, 1 Hazelwood Dr., Champaign, IL, 61820, USA
| | - Achilleas Constantinou
- Division of Chemical & Petroleum Engineering, School of Engineering, London South Bank University, London, SE1 0AA, UK.
- Department of Chemical Engineering, University College London (UCL), London, WCIE 7JE, UK.
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15
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Manos G, Dunne LJ. Predicting the Features of Methane Adsorption in Large Pore Metal-Organic Frameworks for Energy Storage. Nanomaterials (Basel) 2018; 8:nano8100818. [PMID: 30314317 PMCID: PMC6215088 DOI: 10.3390/nano8100818] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 10/04/2018] [Accepted: 10/08/2018] [Indexed: 11/22/2022]
Abstract
Currently, metal-organic frameworks (MOFs) are receiving significant attention as part of an international push to use their special properties in an extensive variety of energy applications. In particular, MOFs have exceptional potential for gas storage especially for methane and hydrogen for automobiles. However, using theoretical approaches to investigate this important problem presents various difficulties. Here we present the outcomes of a basic theoretical investigation into methane adsorption in large pore MOFs with the aim of capturing the unique features of this phenomenon. We have developed a pseudo one-dimensional statistical mechanical theory of adsorption of gas in a MOF with both narrow and large pores, which is solved exactly using a transfer matrix technique in the Osmotic Ensemble (OE). The theory effectively describes the distinctive features of adsorption of gas isotherms in MOFs. The characteristic forms of adsorption isotherms in MOFs reflect changes in structure caused by adsorption of gas and compressive stress. Of extraordinary importance for gas storage for energy applications, we find two regimes of Negative gas adsorption (NGA) where gas pressure causes the MOF to transform from the large pore to the narrow pore structure. These transformations can be induced by mechanical compression and conceivably used in an engine to discharge adsorbed gas from the MOF. The elements which govern NGA in MOFs with large pores are identified. Our study may help guide the difficult program of work for computer simulation studies of gas storage in MOFs with large pores.
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Affiliation(s)
- George Manos
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK.
| | - Lawrence J Dunne
- School of Engineering, London South Bank University, London SE1 0AA, UK.
- Department of Chemistry, University of Sussex, Falmer, Brighton BN1 9QJ, UK.
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16
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Dunne LJ, Manos G. Statistical mechanics of binary mixture adsorption in metal-organic frameworks in the osmotic ensemble. Philos Trans A Math Phys Eng Sci 2018; 376:rsta.2017.0151. [PMID: 29431679 DOI: 10.1098/rsta.2017.0151] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/25/2017] [Indexed: 05/09/2023]
Abstract
Although crucial for designing separation processes little is known experimentally about multi-component adsorption isotherms in comparison with pure single components. Very few binary mixture adsorption isotherms are to be found in the literature and information about isotherms over a wide range of gas-phase composition and mechanical pressures and temperature is lacking. Here, we present a quasi-one-dimensional statistical mechanical model of binary mixture adsorption in metal-organic frameworks (MOFs) treated exactly by a transfer matrix method in the osmotic ensemble. The experimental parameter space may be very complex and investigations into multi-component mixture adsorption may be guided by theoretical insights. The approach successfully models breathing structural transitions induced by adsorption giving a good account of the shape of adsorption isotherms of CO2 and CH4 adsorption in MIL-53(Al). Binary mixture isotherms and co-adsorption-phase diagrams are also calculated and found to give a good description of the experimental trends in these properties and because of the wide model parameter range which reproduces this behaviour suggests that this is generic to MOFs. Finally, a study is made of the influence of mechanical pressure on the shape of CO2 and CH4 adsorption isotherms in MIL-53(Al). Quite modest mechanical pressures can induce significant changes to isotherm shapes in MOFs with implications for binary mixture separation processes.This article is part of the theme issue 'Modern theoretical chemistry'.
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Affiliation(s)
- Lawrence J Dunne
- School of Engineering, London South Bank University, London SE1 0AA, UK
- Department of Materials, Imperial College London, London SW7 2AZ, UK
- Department of Chemistry, University of Sussex, Falmer, Brighton BN1 9QJ, UK
| | - George Manos
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
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17
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Abstract
This review paper provides an in-depth review of microreactors for the intensification of the liquid fuel production processes.
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Affiliation(s)
- Sanaa Hafeez
- Division of Chemical & Petroleum Engineering
- School of Engineering
- London South Bank University
- London SE1 0AA
- UK
| | - George Manos
- Department of Chemical Engineering
- University College London
- London WCIE 7JE
- UK
| | - S. M. Al-Salem
- Environment & Life Sciences Research Centre
- Kuwait Institute for Scientific Research
- Safat 13109
- Kuwait
| | - Elsa Aristodemou
- Division of Chemical & Petroleum Engineering
- School of Engineering
- London South Bank University
- London SE1 0AA
- UK
| | - Achilleas Constantinou
- Division of Chemical & Petroleum Engineering
- School of Engineering
- London South Bank University
- London SE1 0AA
- UK
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18
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Al-Salem SM, Antelava A, Constantinou A, Manos G, Dutta A. A review on thermal and catalytic pyrolysis of plastic solid waste (PSW). J Environ Manage 2017; 197:177-198. [PMID: 28384612 DOI: 10.1016/j.jenvman.2017.03.084] [Citation(s) in RCA: 260] [Impact Index Per Article: 37.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 03/26/2017] [Indexed: 05/21/2023]
Abstract
Plastic plays an important role in our daily lives due to its versatility, light weight and low production cost. Plastics became essential in many sectors such as construction, medical, engineering applications, automotive, aerospace, etc. In addition, economic growth and development also increased our demand and dependency on plastics which leads to its accumulation in landfills imposing risk on human health, animals and cause environmental pollution problems such as ground water contamination, sanitary related issues, etc. Hence, a sustainable and an efficient plastic waste treatment is essential to avoid such issues. Pyrolysis is a thermo-chemical plastic waste treatment technique which can solve such pollution problems, as well as, recover valuable energy and products such as oil and gas. Pyrolysis of plastic solid waste (PSW) has gained importance due to having better advantages towards environmental pollution and reduction of carbon footprint of plastic products by minimizing the emissions of carbon monoxide and carbon dioxide compared to combustion and gasification. This paper presents the existing techniques of pyrolysis, the parameters which affect the products yield and selectivity and identify major research gaps in this technology. The influence of different catalysts on the process as well as review and comparative assessment of pyrolysis with other thermal and catalytic plastic treatment methods, is also presented.
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Affiliation(s)
- S M Al-Salem
- Environment & Life Sciences Research Centre, Kuwait Institute for Scientific Research, P.O. Box: 24885, Safat, 13109, Kuwait.
| | - A Antelava
- Division of Chemical & Petroleum Engineering, School of Engineering, London South Bank University, London, SE1 0AA, UK
| | - A Constantinou
- Division of Chemical & Petroleum Engineering, School of Engineering, London South Bank University, London, SE1 0AA, UK; Department of Chemical Engineering, University College London (UCL), London, WCIE 7JE, UK
| | - G Manos
- Department of Chemical Engineering, University College London (UCL), London, WCIE 7JE, UK
| | - A Dutta
- Mechanical Engineering Program, School of Engineering, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
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Cortes JE, Saglio G, Kantarjian HM, Baccarani M, Mayer J, Boqué C, Shah NP, Chuah C, Casanova L, Bradley-Garelik B, Manos G, Hochhaus A. Final 5-Year Study Results of DASISION: The Dasatinib Versus Imatinib Study in Treatment-Naïve Chronic Myeloid Leukemia Patients Trial. J Clin Oncol 2016; 34:2333-40. [PMID: 27217448 PMCID: PMC5118045 DOI: 10.1200/jco.2015.64.8899] [Citation(s) in RCA: 609] [Impact Index Per Article: 76.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
PURPOSE We report the 5-year analysis from the phase III Dasatinib Versus Imatinib Study in Treatment-Naïve Chronic Myeloid Leukemia Patients (DASISION) trial, evaluating long-term efficacy and safety outcomes of patients with chronic myeloid leukemia (CML) in chronic phase (CP) treated with dasatinib or imatinib. PATIENTS AND METHODS Patients with newly diagnosed CML-CP were randomly assigned to receive dasatinib 100 mg once daily (n = 259) or imatinib 400 mg once daily (n = 260). RESULTS At the time of study closure, 61% and 63% of dasatinib- and imatinib-treated patients remained on initial therapy, respectively. Cumulative rates of major molecular response and molecular responses with a 4.0- or 4.5-log reduction in BCR-ABL1 transcripts from baseline by 5 years remained statistically significantly higher for dasatinib compared with imatinib. Rates for progression-free and overall survival at 5 years remained high and similar across treatment arms. In patients who achieved BCR-ABL1 ≤ 10% at 3 months (dasatinib, 84%; imatinib, 64%), improvements in progression-free and overall survival and lower rates of transformation to accelerated/blast phase were reported compared with patients with BCR-ABL1 greater than 10% at 3 months. Transformation to accelerated/blast phase occurred in 5% and 7% of patients in the dasatinib and imatinib arms, respectively. Fifteen dasatinib-treated and 19 imatinib-treated patients had BCR-ABL1 mutations identified at discontinuation. There were no new or unexpected adverse events identified in either treatment arm, and pleural effusion was the only drug-related, nonhematologic adverse event reported more frequently with dasatinib (28% v 0.8% with imatinib). First occurrences of pleural effusion were reported with dasatinib, with the highest incidence in year 1. Arterial ischemic events were uncommon in both treatment arms. CONCLUSION These final results from the DASISION trial continue to support dasatinib 100 mg once daily as a safe and effective first-line therapy for the long-term treatment of CML-CP.
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Affiliation(s)
- Jorge E Cortes
- Jorge E. Cortes and Hagop M. Kantarjian The University of Texas MD Anderson Cancer Center, Houston, TX; Neil P. Shah, University of California San Francisco School of Medicine, San Francisco, CA; Brigid Bradley-Garelik and George Manos, Bristol-Myers Squibb, Princeton, NJ; Giuseppe Saglio, University of Turin, Turin; Michele Baccarani, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy; Jiří Mayer, University Hospital Brno and Central European Institute of Technology, Masaryk University, Brno, Czech Republic; Concepción Boqué, Institut Català d'Oncologia, Hospital Duran i Reynals, L'Hospitalet, Barcelona, Spain; Charles Chuah, Singapore General Hospital, Duke-National University of Singapore Medical School, Singapore; Luis Casanova, Instituto Nacional de Enfermedades Neoplásicas, Lima, Perú;and Andreas Hochhaus, Universitätsklinikum Jena, Jena, Germany.
| | - Giuseppe Saglio
- Jorge E. Cortes and Hagop M. Kantarjian The University of Texas MD Anderson Cancer Center, Houston, TX; Neil P. Shah, University of California San Francisco School of Medicine, San Francisco, CA; Brigid Bradley-Garelik and George Manos, Bristol-Myers Squibb, Princeton, NJ; Giuseppe Saglio, University of Turin, Turin; Michele Baccarani, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy; Jiří Mayer, University Hospital Brno and Central European Institute of Technology, Masaryk University, Brno, Czech Republic; Concepción Boqué, Institut Català d'Oncologia, Hospital Duran i Reynals, L'Hospitalet, Barcelona, Spain; Charles Chuah, Singapore General Hospital, Duke-National University of Singapore Medical School, Singapore; Luis Casanova, Instituto Nacional de Enfermedades Neoplásicas, Lima, Perú;and Andreas Hochhaus, Universitätsklinikum Jena, Jena, Germany
| | - Hagop M Kantarjian
- Jorge E. Cortes and Hagop M. Kantarjian The University of Texas MD Anderson Cancer Center, Houston, TX; Neil P. Shah, University of California San Francisco School of Medicine, San Francisco, CA; Brigid Bradley-Garelik and George Manos, Bristol-Myers Squibb, Princeton, NJ; Giuseppe Saglio, University of Turin, Turin; Michele Baccarani, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy; Jiří Mayer, University Hospital Brno and Central European Institute of Technology, Masaryk University, Brno, Czech Republic; Concepción Boqué, Institut Català d'Oncologia, Hospital Duran i Reynals, L'Hospitalet, Barcelona, Spain; Charles Chuah, Singapore General Hospital, Duke-National University of Singapore Medical School, Singapore; Luis Casanova, Instituto Nacional de Enfermedades Neoplásicas, Lima, Perú;and Andreas Hochhaus, Universitätsklinikum Jena, Jena, Germany
| | - Michele Baccarani
- Jorge E. Cortes and Hagop M. Kantarjian The University of Texas MD Anderson Cancer Center, Houston, TX; Neil P. Shah, University of California San Francisco School of Medicine, San Francisco, CA; Brigid Bradley-Garelik and George Manos, Bristol-Myers Squibb, Princeton, NJ; Giuseppe Saglio, University of Turin, Turin; Michele Baccarani, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy; Jiří Mayer, University Hospital Brno and Central European Institute of Technology, Masaryk University, Brno, Czech Republic; Concepción Boqué, Institut Català d'Oncologia, Hospital Duran i Reynals, L'Hospitalet, Barcelona, Spain; Charles Chuah, Singapore General Hospital, Duke-National University of Singapore Medical School, Singapore; Luis Casanova, Instituto Nacional de Enfermedades Neoplásicas, Lima, Perú;and Andreas Hochhaus, Universitätsklinikum Jena, Jena, Germany
| | - Jiří Mayer
- Jorge E. Cortes and Hagop M. Kantarjian The University of Texas MD Anderson Cancer Center, Houston, TX; Neil P. Shah, University of California San Francisco School of Medicine, San Francisco, CA; Brigid Bradley-Garelik and George Manos, Bristol-Myers Squibb, Princeton, NJ; Giuseppe Saglio, University of Turin, Turin; Michele Baccarani, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy; Jiří Mayer, University Hospital Brno and Central European Institute of Technology, Masaryk University, Brno, Czech Republic; Concepción Boqué, Institut Català d'Oncologia, Hospital Duran i Reynals, L'Hospitalet, Barcelona, Spain; Charles Chuah, Singapore General Hospital, Duke-National University of Singapore Medical School, Singapore; Luis Casanova, Instituto Nacional de Enfermedades Neoplásicas, Lima, Perú;and Andreas Hochhaus, Universitätsklinikum Jena, Jena, Germany
| | - Concepción Boqué
- Jorge E. Cortes and Hagop M. Kantarjian The University of Texas MD Anderson Cancer Center, Houston, TX; Neil P. Shah, University of California San Francisco School of Medicine, San Francisco, CA; Brigid Bradley-Garelik and George Manos, Bristol-Myers Squibb, Princeton, NJ; Giuseppe Saglio, University of Turin, Turin; Michele Baccarani, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy; Jiří Mayer, University Hospital Brno and Central European Institute of Technology, Masaryk University, Brno, Czech Republic; Concepción Boqué, Institut Català d'Oncologia, Hospital Duran i Reynals, L'Hospitalet, Barcelona, Spain; Charles Chuah, Singapore General Hospital, Duke-National University of Singapore Medical School, Singapore; Luis Casanova, Instituto Nacional de Enfermedades Neoplásicas, Lima, Perú;and Andreas Hochhaus, Universitätsklinikum Jena, Jena, Germany
| | - Neil P Shah
- Jorge E. Cortes and Hagop M. Kantarjian The University of Texas MD Anderson Cancer Center, Houston, TX; Neil P. Shah, University of California San Francisco School of Medicine, San Francisco, CA; Brigid Bradley-Garelik and George Manos, Bristol-Myers Squibb, Princeton, NJ; Giuseppe Saglio, University of Turin, Turin; Michele Baccarani, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy; Jiří Mayer, University Hospital Brno and Central European Institute of Technology, Masaryk University, Brno, Czech Republic; Concepción Boqué, Institut Català d'Oncologia, Hospital Duran i Reynals, L'Hospitalet, Barcelona, Spain; Charles Chuah, Singapore General Hospital, Duke-National University of Singapore Medical School, Singapore; Luis Casanova, Instituto Nacional de Enfermedades Neoplásicas, Lima, Perú;and Andreas Hochhaus, Universitätsklinikum Jena, Jena, Germany
| | - Charles Chuah
- Jorge E. Cortes and Hagop M. Kantarjian The University of Texas MD Anderson Cancer Center, Houston, TX; Neil P. Shah, University of California San Francisco School of Medicine, San Francisco, CA; Brigid Bradley-Garelik and George Manos, Bristol-Myers Squibb, Princeton, NJ; Giuseppe Saglio, University of Turin, Turin; Michele Baccarani, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy; Jiří Mayer, University Hospital Brno and Central European Institute of Technology, Masaryk University, Brno, Czech Republic; Concepción Boqué, Institut Català d'Oncologia, Hospital Duran i Reynals, L'Hospitalet, Barcelona, Spain; Charles Chuah, Singapore General Hospital, Duke-National University of Singapore Medical School, Singapore; Luis Casanova, Instituto Nacional de Enfermedades Neoplásicas, Lima, Perú;and Andreas Hochhaus, Universitätsklinikum Jena, Jena, Germany
| | - Luis Casanova
- Jorge E. Cortes and Hagop M. Kantarjian The University of Texas MD Anderson Cancer Center, Houston, TX; Neil P. Shah, University of California San Francisco School of Medicine, San Francisco, CA; Brigid Bradley-Garelik and George Manos, Bristol-Myers Squibb, Princeton, NJ; Giuseppe Saglio, University of Turin, Turin; Michele Baccarani, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy; Jiří Mayer, University Hospital Brno and Central European Institute of Technology, Masaryk University, Brno, Czech Republic; Concepción Boqué, Institut Català d'Oncologia, Hospital Duran i Reynals, L'Hospitalet, Barcelona, Spain; Charles Chuah, Singapore General Hospital, Duke-National University of Singapore Medical School, Singapore; Luis Casanova, Instituto Nacional de Enfermedades Neoplásicas, Lima, Perú;and Andreas Hochhaus, Universitätsklinikum Jena, Jena, Germany
| | - Brigid Bradley-Garelik
- Jorge E. Cortes and Hagop M. Kantarjian The University of Texas MD Anderson Cancer Center, Houston, TX; Neil P. Shah, University of California San Francisco School of Medicine, San Francisco, CA; Brigid Bradley-Garelik and George Manos, Bristol-Myers Squibb, Princeton, NJ; Giuseppe Saglio, University of Turin, Turin; Michele Baccarani, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy; Jiří Mayer, University Hospital Brno and Central European Institute of Technology, Masaryk University, Brno, Czech Republic; Concepción Boqué, Institut Català d'Oncologia, Hospital Duran i Reynals, L'Hospitalet, Barcelona, Spain; Charles Chuah, Singapore General Hospital, Duke-National University of Singapore Medical School, Singapore; Luis Casanova, Instituto Nacional de Enfermedades Neoplásicas, Lima, Perú;and Andreas Hochhaus, Universitätsklinikum Jena, Jena, Germany
| | - George Manos
- Jorge E. Cortes and Hagop M. Kantarjian The University of Texas MD Anderson Cancer Center, Houston, TX; Neil P. Shah, University of California San Francisco School of Medicine, San Francisco, CA; Brigid Bradley-Garelik and George Manos, Bristol-Myers Squibb, Princeton, NJ; Giuseppe Saglio, University of Turin, Turin; Michele Baccarani, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy; Jiří Mayer, University Hospital Brno and Central European Institute of Technology, Masaryk University, Brno, Czech Republic; Concepción Boqué, Institut Català d'Oncologia, Hospital Duran i Reynals, L'Hospitalet, Barcelona, Spain; Charles Chuah, Singapore General Hospital, Duke-National University of Singapore Medical School, Singapore; Luis Casanova, Instituto Nacional de Enfermedades Neoplásicas, Lima, Perú;and Andreas Hochhaus, Universitätsklinikum Jena, Jena, Germany
| | - Andreas Hochhaus
- Jorge E. Cortes and Hagop M. Kantarjian The University of Texas MD Anderson Cancer Center, Houston, TX; Neil P. Shah, University of California San Francisco School of Medicine, San Francisco, CA; Brigid Bradley-Garelik and George Manos, Bristol-Myers Squibb, Princeton, NJ; Giuseppe Saglio, University of Turin, Turin; Michele Baccarani, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy; Jiří Mayer, University Hospital Brno and Central European Institute of Technology, Masaryk University, Brno, Czech Republic; Concepción Boqué, Institut Català d'Oncologia, Hospital Duran i Reynals, L'Hospitalet, Barcelona, Spain; Charles Chuah, Singapore General Hospital, Duke-National University of Singapore Medical School, Singapore; Luis Casanova, Instituto Nacional de Enfermedades Neoplásicas, Lima, Perú;and Andreas Hochhaus, Universitätsklinikum Jena, Jena, Germany
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Dunne LJ, Manos G. Exact matrix treatment of an osmotic ensemble model of adsorption and pressure induced structural transitions in metal organic frameworks. Dalton Trans 2016; 45:4213-7. [DOI: 10.1039/c5dt03248b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here we present an exactly treated quasi-one dimensional statistical mechanical osmotic ensemble model of pressure and adsorption induced breathing structural transformations of metal–organic frameworks (MOFs).
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Affiliation(s)
- Lawrence J. Dunne
- School of Engineering
- London South Bank University
- London SE1 0AA
- UK
- Department of Materials
| | - George Manos
- Department of Chemical Engineering
- University College London
- London
- UK
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Bharath V, Millichamp J, Neville T, Mason T, Shearing P, Brown R, Manos G, Brett D. Measurement of water uptake in thin-film Nafion and anion alkaline exchange membranes using the quartz crystal microbalance. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2015.09.027] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Mankoski R, Stockton G, Manos G, Marler S, McQuade R, Forbes RA, Marcus R. Aripiprazole treatment of irritability associated with autistic disorder and the relationship between prior antipsychotic exposure, adverse events, and weight change. J Child Adolesc Psychopharmacol 2013; 23:572-6. [PMID: 24138011 PMCID: PMC3804231 DOI: 10.1089/cap.2012.0075] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The purpose of this study was to evaluate the impact of prior antipsychotic exposure (PAE) on safety and tolerability outcomes in pediatric subjects receiving aripiprazole treatment. METHODS This study was a post-hoc analysis of pooled data from two 8-week, double-blind, randomized, placebo-controlled studies evaluating aripiprazole for the treatment of irritability in pediatric subjects with autistic disorder, aged 6-17 years. Subjects were stratified by PAE; adverse events (AEs), and changes in weight, and metabolic measures were evaluated. For subjects receiving aripiprazole, regardless of PAE, baseline weight, age, gender, and symptom severity were evaluated in a regression model predicting body weight change. RESULTS Of 316 randomized subjects, 259 (82.0%) were antipsychotic naïve (AN) and 57 (18.0%) had a PAE. Aripiprazole-treated AN subjects were more likely than PAE subjects to report somnolence (11.9% vs. 2.8%), sedation (22.7% vs. 11.1%), or fatigue (17.0% vs. 13.9%). Rates of extrapyramidal disorder and drooling, but not akathisia or tremor, were marginally higher in AN subjects. Overall, 10.8% of aripiprazole-treated AN subjects had at least one AE leading to discontinuation compared with 8.3% of aripiprazole-treated PAE subjects. AN subjects receiving aripiprazole had a larger change in weight from baseline to endpoint compared with those receiving placebo (1.9 vs. 0.7 kg; treatment difference 1.2 kg, 95% CI: 0.5, 1.9) than PAE subjects receiving aripiprazole compared with subjects receiving placebo (0.4 vs. -0.4 kg; treatment difference 0.9 kg, 95% CI: -0.6, 2.4). Regression analysis identified that younger subjects with higher baseline weight z-score were at highest risk for weight gain. There were no significant changes in metabolic measures compared with placebo in either group. CONCLUSIONS Weight gain was more pronounced in AN subjects and more likely to occur in younger subjects with a higher baseline weight z-score. AN subjects were more likely to experience AEs related to somnolence. However, based on discontinuations rates from AEs, overall tolerability was good for both AN and PAE groups. CLINICAL TRIAL REGISTRATION Study of aripiprazole in the treatment of children and adolescents with autistic disorder. Registry: www.clinicaltrials.gov . Identifiers: NCT00332241 and NCT00337571.
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Affiliation(s)
| | - Gwen Stockton
- Otsuka Pharmaceutical Development & Commercialization, Inc., Princeton, NJ
| | | | | | - Robert McQuade
- Otsuka Pharmaceutical Development & Commercialization, Inc., Princeton, NJ
| | - Robert A. Forbes
- Otsuka Pharmaceutical Development & Commercialization, Inc., Princeton, NJ
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Marcus R, Goadsby PJ, Dodick D, Stock D, Manos G, Fischer TZ. BMS-927711 for the acute treatment of migraine: a double-blind, randomized, placebo controlled, dose-ranging trial. Cephalalgia 2013; 34:114-25. [PMID: 23965396 DOI: 10.1177/0333102413500727] [Citation(s) in RCA: 193] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND BMS-927711 is a potent, selective, competitive human calcitonin gene-related peptide (CGRP) receptor antagonist that has shown in vivo efficacy without vasoconstrictor effect. The objective of the current study was to determine an effective and tolerable dose range of BMS-927711 for the acute treatment of migraine. METHODS In this randomized, double-blind, placebo controlled, dose-ranging study, 885 patients were randomized using an adaptive design to one of the following dose groups: BMS-927711 (10, 25, 75, 150, 300, or 600 mg); sumatriptan 100 mg (active comparator); and placebo. Patients were treated for a single migraine attack. The primary endpoint was pain freedom at two hours post-dose. RESULTS Of patients who took the study drug, 799 had one post-randomization efficacy evaluation. Significantly more patients in the BMS-927711 75 mg (31.4%, P = 0.002), 150 mg (32.9%, P < 0.001), and 300 mg (29.7%, P = 0.002) groups and the sumatriptan group (35%, P < 0.001) had pain freedom at two hours post-dose versus placebo (15.3%). For the secondary endpoint of sustained pain freedom from two to 24 hours post-dose, BMS-927711 doses (25-600 mg) were also statistically significant compared with placebo. No deaths or treatment-related serious adverse events (AEs) were reported, and no patients discontinued because of AEs. CONCLUSIONS BMS-927711 is superior to placebo at several different doses (75 mg, 150 mg, and 300 mg) and has an excellent tolerability profile.
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Zwaan CM, Rizzari C, Mechinaud F, Lancaster DL, Lehrnbecher T, van der Velden VH, Beverloo BB, den Boer ML, Pieters R, Reinhardt D, Dworzak M, Rosenberg J, Manos G, Agrawal S, Strauss L, Baruchel A, Kearns PR. Dasatinib in Children and Adolescents With Relapsed or Refractory Leukemia: Results of the CA180-018 Phase I Dose-Escalation Study of the Innovative Therapies for Children With Cancer Consortium. J Clin Oncol 2013; 31:2460-8. [DOI: 10.1200/jco.2012.46.8280] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Purpose Dasatinib is a potent BCR-ABL inhibitor with proven efficacy in adults with newly diagnosed chronic myeloid leukemia (CML) in chronic phase (CP) and in imatinib-resistant/intolerant disease. This phase I study of the Innovative Therapies for Children with Cancer Consortium assessed dasatinib safety and efficacy in pediatric patients. Patients and Methods Escalating once-daily dasatinib doses (60 to 120 mg/m2) were administered to children (n = 58) with (i) imatinib-pretreated CML or Philadelphia chromosome (Ph)–positive acute lymhoblastic leukemia (ALL) and (ii) treatment-refractory Ph-negative ALL or acute myeloid leukemia (AML). Results Dasatinib safety and efficacy profiles compared favorably with those in adults. The most common drug-related nonhematologic adverse events were nausea (31%, all grades; 2%, grade 3 to 4), headache (22%, 3%), diarrhea (21%, 0%), and vomiting (17%, 2%). Of 17 patients with CML-CP, 14 (82%) achieved complete cytogenetic response (CCyR) and eight (47%) achieved major molecular response. After ≥ 24 months of follow-up, median complete hematologic response (CHR) and major cytogenetic response (MCyR) durations were not reached. Of 17 patients with advanced-phase CML or Ph-positive ALL, six (35%) achieved confirmed CHR and 11 (65%) achieved CCyR. Median MCyR duration was 4.6 months (95% CI, 2.1 to 17.4 months). No patient with Ph-negative ALL or AML responded. Dasatinib pediatric pharmacokinetic parameters were comparable with those in adult studies, showing rapid absorption (time to reach maximum concentration, 0.5 to 6.0 hours) and elimination (mean half-life, 3.0 to 4.4 hours). Conclusion Dasatinib 60 mg/m2 and 80 mg/m2 once-daily dosing were selected for phase II studies in children with Ph-positive leukemias.
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Affiliation(s)
- C. Michel Zwaan
- C. Michel Zwaan, H. Berna Beverloo, Monique L. den Boer, and Rob Pieters, Erasmus Medical Center (MC)/Sophia Children's Hospital; Vincent H.J. van der Velden, Erasmus MC, Rotterdam, the Netherlands; Carmelo Rizzari, University of Milano-Bicocca, Hospital S. Gerardo, Monza, Italy; Francoise Mechinaud, Royal Children's Hospital, Melbourne, Victoria, Australia; Donna L. Lancaster, The Royal Marsden National Health Service Foundation Trust, London; Pamela R. Kearns, School of Cancer Sciences, University of
| | - Carmelo Rizzari
- C. Michel Zwaan, H. Berna Beverloo, Monique L. den Boer, and Rob Pieters, Erasmus Medical Center (MC)/Sophia Children's Hospital; Vincent H.J. van der Velden, Erasmus MC, Rotterdam, the Netherlands; Carmelo Rizzari, University of Milano-Bicocca, Hospital S. Gerardo, Monza, Italy; Francoise Mechinaud, Royal Children's Hospital, Melbourne, Victoria, Australia; Donna L. Lancaster, The Royal Marsden National Health Service Foundation Trust, London; Pamela R. Kearns, School of Cancer Sciences, University of
| | - Francoise Mechinaud
- C. Michel Zwaan, H. Berna Beverloo, Monique L. den Boer, and Rob Pieters, Erasmus Medical Center (MC)/Sophia Children's Hospital; Vincent H.J. van der Velden, Erasmus MC, Rotterdam, the Netherlands; Carmelo Rizzari, University of Milano-Bicocca, Hospital S. Gerardo, Monza, Italy; Francoise Mechinaud, Royal Children's Hospital, Melbourne, Victoria, Australia; Donna L. Lancaster, The Royal Marsden National Health Service Foundation Trust, London; Pamela R. Kearns, School of Cancer Sciences, University of
| | - Donna L. Lancaster
- C. Michel Zwaan, H. Berna Beverloo, Monique L. den Boer, and Rob Pieters, Erasmus Medical Center (MC)/Sophia Children's Hospital; Vincent H.J. van der Velden, Erasmus MC, Rotterdam, the Netherlands; Carmelo Rizzari, University of Milano-Bicocca, Hospital S. Gerardo, Monza, Italy; Francoise Mechinaud, Royal Children's Hospital, Melbourne, Victoria, Australia; Donna L. Lancaster, The Royal Marsden National Health Service Foundation Trust, London; Pamela R. Kearns, School of Cancer Sciences, University of
| | - Thomas Lehrnbecher
- C. Michel Zwaan, H. Berna Beverloo, Monique L. den Boer, and Rob Pieters, Erasmus Medical Center (MC)/Sophia Children's Hospital; Vincent H.J. van der Velden, Erasmus MC, Rotterdam, the Netherlands; Carmelo Rizzari, University of Milano-Bicocca, Hospital S. Gerardo, Monza, Italy; Francoise Mechinaud, Royal Children's Hospital, Melbourne, Victoria, Australia; Donna L. Lancaster, The Royal Marsden National Health Service Foundation Trust, London; Pamela R. Kearns, School of Cancer Sciences, University of
| | - Vincent H.J. van der Velden
- C. Michel Zwaan, H. Berna Beverloo, Monique L. den Boer, and Rob Pieters, Erasmus Medical Center (MC)/Sophia Children's Hospital; Vincent H.J. van der Velden, Erasmus MC, Rotterdam, the Netherlands; Carmelo Rizzari, University of Milano-Bicocca, Hospital S. Gerardo, Monza, Italy; Francoise Mechinaud, Royal Children's Hospital, Melbourne, Victoria, Australia; Donna L. Lancaster, The Royal Marsden National Health Service Foundation Trust, London; Pamela R. Kearns, School of Cancer Sciences, University of
| | - B. Berna Beverloo
- C. Michel Zwaan, H. Berna Beverloo, Monique L. den Boer, and Rob Pieters, Erasmus Medical Center (MC)/Sophia Children's Hospital; Vincent H.J. van der Velden, Erasmus MC, Rotterdam, the Netherlands; Carmelo Rizzari, University of Milano-Bicocca, Hospital S. Gerardo, Monza, Italy; Francoise Mechinaud, Royal Children's Hospital, Melbourne, Victoria, Australia; Donna L. Lancaster, The Royal Marsden National Health Service Foundation Trust, London; Pamela R. Kearns, School of Cancer Sciences, University of
| | - Monique L. den Boer
- C. Michel Zwaan, H. Berna Beverloo, Monique L. den Boer, and Rob Pieters, Erasmus Medical Center (MC)/Sophia Children's Hospital; Vincent H.J. van der Velden, Erasmus MC, Rotterdam, the Netherlands; Carmelo Rizzari, University of Milano-Bicocca, Hospital S. Gerardo, Monza, Italy; Francoise Mechinaud, Royal Children's Hospital, Melbourne, Victoria, Australia; Donna L. Lancaster, The Royal Marsden National Health Service Foundation Trust, London; Pamela R. Kearns, School of Cancer Sciences, University of
| | - Rob Pieters
- C. Michel Zwaan, H. Berna Beverloo, Monique L. den Boer, and Rob Pieters, Erasmus Medical Center (MC)/Sophia Children's Hospital; Vincent H.J. van der Velden, Erasmus MC, Rotterdam, the Netherlands; Carmelo Rizzari, University of Milano-Bicocca, Hospital S. Gerardo, Monza, Italy; Francoise Mechinaud, Royal Children's Hospital, Melbourne, Victoria, Australia; Donna L. Lancaster, The Royal Marsden National Health Service Foundation Trust, London; Pamela R. Kearns, School of Cancer Sciences, University of
| | - Dirk Reinhardt
- C. Michel Zwaan, H. Berna Beverloo, Monique L. den Boer, and Rob Pieters, Erasmus Medical Center (MC)/Sophia Children's Hospital; Vincent H.J. van der Velden, Erasmus MC, Rotterdam, the Netherlands; Carmelo Rizzari, University of Milano-Bicocca, Hospital S. Gerardo, Monza, Italy; Francoise Mechinaud, Royal Children's Hospital, Melbourne, Victoria, Australia; Donna L. Lancaster, The Royal Marsden National Health Service Foundation Trust, London; Pamela R. Kearns, School of Cancer Sciences, University of
| | - Michael Dworzak
- C. Michel Zwaan, H. Berna Beverloo, Monique L. den Boer, and Rob Pieters, Erasmus Medical Center (MC)/Sophia Children's Hospital; Vincent H.J. van der Velden, Erasmus MC, Rotterdam, the Netherlands; Carmelo Rizzari, University of Milano-Bicocca, Hospital S. Gerardo, Monza, Italy; Francoise Mechinaud, Royal Children's Hospital, Melbourne, Victoria, Australia; Donna L. Lancaster, The Royal Marsden National Health Service Foundation Trust, London; Pamela R. Kearns, School of Cancer Sciences, University of
| | - Julie Rosenberg
- C. Michel Zwaan, H. Berna Beverloo, Monique L. den Boer, and Rob Pieters, Erasmus Medical Center (MC)/Sophia Children's Hospital; Vincent H.J. van der Velden, Erasmus MC, Rotterdam, the Netherlands; Carmelo Rizzari, University of Milano-Bicocca, Hospital S. Gerardo, Monza, Italy; Francoise Mechinaud, Royal Children's Hospital, Melbourne, Victoria, Australia; Donna L. Lancaster, The Royal Marsden National Health Service Foundation Trust, London; Pamela R. Kearns, School of Cancer Sciences, University of
| | - George Manos
- C. Michel Zwaan, H. Berna Beverloo, Monique L. den Boer, and Rob Pieters, Erasmus Medical Center (MC)/Sophia Children's Hospital; Vincent H.J. van der Velden, Erasmus MC, Rotterdam, the Netherlands; Carmelo Rizzari, University of Milano-Bicocca, Hospital S. Gerardo, Monza, Italy; Francoise Mechinaud, Royal Children's Hospital, Melbourne, Victoria, Australia; Donna L. Lancaster, The Royal Marsden National Health Service Foundation Trust, London; Pamela R. Kearns, School of Cancer Sciences, University of
| | - Shruti Agrawal
- C. Michel Zwaan, H. Berna Beverloo, Monique L. den Boer, and Rob Pieters, Erasmus Medical Center (MC)/Sophia Children's Hospital; Vincent H.J. van der Velden, Erasmus MC, Rotterdam, the Netherlands; Carmelo Rizzari, University of Milano-Bicocca, Hospital S. Gerardo, Monza, Italy; Francoise Mechinaud, Royal Children's Hospital, Melbourne, Victoria, Australia; Donna L. Lancaster, The Royal Marsden National Health Service Foundation Trust, London; Pamela R. Kearns, School of Cancer Sciences, University of
| | - Lewis Strauss
- C. Michel Zwaan, H. Berna Beverloo, Monique L. den Boer, and Rob Pieters, Erasmus Medical Center (MC)/Sophia Children's Hospital; Vincent H.J. van der Velden, Erasmus MC, Rotterdam, the Netherlands; Carmelo Rizzari, University of Milano-Bicocca, Hospital S. Gerardo, Monza, Italy; Francoise Mechinaud, Royal Children's Hospital, Melbourne, Victoria, Australia; Donna L. Lancaster, The Royal Marsden National Health Service Foundation Trust, London; Pamela R. Kearns, School of Cancer Sciences, University of
| | - André Baruchel
- C. Michel Zwaan, H. Berna Beverloo, Monique L. den Boer, and Rob Pieters, Erasmus Medical Center (MC)/Sophia Children's Hospital; Vincent H.J. van der Velden, Erasmus MC, Rotterdam, the Netherlands; Carmelo Rizzari, University of Milano-Bicocca, Hospital S. Gerardo, Monza, Italy; Francoise Mechinaud, Royal Children's Hospital, Melbourne, Victoria, Australia; Donna L. Lancaster, The Royal Marsden National Health Service Foundation Trust, London; Pamela R. Kearns, School of Cancer Sciences, University of
| | - Pamela R. Kearns
- C. Michel Zwaan, H. Berna Beverloo, Monique L. den Boer, and Rob Pieters, Erasmus Medical Center (MC)/Sophia Children's Hospital; Vincent H.J. van der Velden, Erasmus MC, Rotterdam, the Netherlands; Carmelo Rizzari, University of Milano-Bicocca, Hospital S. Gerardo, Monza, Italy; Francoise Mechinaud, Royal Children's Hospital, Melbourne, Victoria, Australia; Donna L. Lancaster, The Royal Marsden National Health Service Foundation Trust, London; Pamela R. Kearns, School of Cancer Sciences, University of
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Robb AS, Andersson C, Bellocchio EE, Manos G, Rojas-Fernandez C, Mathew S, Marcus R, Owen R, Mankoski R. Safety and tolerability of aripiprazole in the treatment of irritability associated with autistic disorder in pediatric subjects (6-17 years old):results from a pooled analysis of 2 studies. Prim Care Companion CNS Disord 2012; 13:10m01008gry. [PMID: 21731831 DOI: 10.4088/pcc.10m01008gry] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2010] [Accepted: 06/17/2010] [Indexed: 10/18/2022] Open
Abstract
BACKGROUND With increasing use of atypical antipsychotics among pediatric patients, detailed information about safety and tolerability is crucial. METHOD Data were pooled from two 8-week, randomized, double-blind, multicenter, parallel-group trials comparing aripiprazole versus placebo in subjects aged 6 to 17 years with irritability associated with DSM-IV-TR-diagnosed autistic disorder: one flexibly dosed (aripiprazole 2-15 mg/d; target of 5, 10, or 15 mg/d), the other fixed-dose (aripiprazole 5, 10, or 15 mg/d). The first was conducted from June 2006-April 2008, and the second, from June 2006-June 2008. Adverse events were characterized with respect to incidence, duration, severity, timing of peak incidence of onset, and dose-response relationship. Extrapyramidal symptoms, drooling, and metabolic parameters were evaluated. RESULTS Three hundred thirteen subjects comprised the safety sample (aripiprazole 212, placebo 101). Discontinuations due to adverse events with aripiprazole versus placebo were, overall, 10.4% versus 6.9%; subjects 6-12 years: 10.8% versus 5.1%; and subjects 13-17 years: 8.9% versus 13.6%. Common adverse events with aripiprazole versus placebo included sedation (20.8% vs 4.0%), fatigue (16.5% vs 2.0%), vomiting (13.7% vs 6.9%), increased appetite (12.7% vs 6.9%), somnolence (10.4% vs 4.0%), and tremor (9.9% vs 0.0%). Most adverse events were mild or moderate and occurred early. Only fatigue showed a dose-response relationship (P < .05). Mean body weight change (last observation carried forward, 1.6 vs 0.4 kg) was higher with aripiprazole than placebo (P < .001). There were no between-treatment differences in metabolic changes. The extrapyramidal symptom-related adverse event incidence with aripiprazole versus placebo was, overall, 20.8% vs 9.9%; the incidence of akathisia-related events was 3.3% vs 8.9%. CONCLUSIONS Aripiprazole was generally safe and well tolerated in subjects (6-17 years) with irritability associated with autistic disorder in these 8-week studies; clinicians should be aware of this clinical profile and strategies to manage adverse events if they occur. TRIAL REGISTRATION clinicaltrials.gov Identifiers NCT00332241 and NCT00337571.
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Affiliation(s)
- Adelaide S Robb
- Center for Clinical and Community Research, Children's National Medical Center, Washington, DC, USA.
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Manos G, Dunne L, Jalili S, Furgani A, Neville T. Monte Carlo Simulation and Exact Statistical Mechanical Lattice Models as a Development Tool for Zeolite Multi-Component Adsorption Isotherm Derivation. ADSORPT SCI TECHNOL 2012. [DOI: 10.1260/0263-6174.30.6.503] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- G. Manos
- Department of Chemical Engineering, University College London, London WC1E 7JE, U.K
| | - L.J. Dunne
- Department of Engineering Systems, London South Bank University, London SE1OAA, U.K
- Department of Materials, Imperial College London, London SW7 2AZ, U.K
| | - S. Jalili
- Department of Chemical Engineering, University College London, London WC1E 7JE, U.K
| | - A. Furgani
- Department of Chemical Engineering, University College London, London WC1E 7JE, U.K
| | - T. Neville
- Department of Chemical Engineering, University College London, London WC1E 7JE, U.K
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Dunner DL, Laubmeier KK, Manos G, Forbes RA, Baker RA, Berman RM. Beneficial effects of adjunctive aripiprazole in major depressive disorder are not dependent on antidepressant therapy history: a post hoc analysis of 3 randomized, double-blind, placebo-controlled trials. Prim Care Companion CNS Disord 2012; 14:12m01380. [PMID: 23585997 DOI: 10.4088/pcc.12m01380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Accepted: 08/15/2012] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVE To determine whether switching within or between antidepressant therapy (ADT) classes prior to the use of adjunctive antipsychotic treatment is associated with different outcomes in major depressive disorder (MDD). METHOD This was a post hoc analysis of pooled data from 3 similar, multicenter, randomized, double-blind, placebo-controlled registrational studies of aripiprazole adjunctive to ADT conducted between September 2004 and April 2008. The trials comprised the following 3 phases: a 7- to 28-day screening phase, an 8-week single-blind prospective treatment phase, and a 6-week double-blind, randomized phase. Patients were aged 18-65 years and met DSM-IV-TR criteria for MDD. Patients with an inadequate response to ADT during the screening phase entered the prospective treatment phase, during which they were switched to another ADT medication of either the same or a different class. Those patients with an inadequate response were then randomized to double-blind adjunctive aripiprazole or adjunctive placebo and followed for 6 weeks. RESULTS Mean improvement in Montgomery-Asberg Depression Rating Scale total score was significantly greater with adjunctive aripiprazole versus adjunctive placebo for both between-class (-9.2 vs -6.2, P < .001) and within-class (-9.8 vs -6.6, P < .001) switch groups. Relative risks for response were 1.6 (95% CI = 1.3-2.1) for those who switched between classes and 1.7 (95% CI = 1.2-2.2) for those who switched within class. CONCLUSIONS Augmentation with aripiprazole, after either a between-class or within-class switch following initial ADT failure, is an effective option for patients with nonresponsive MDD. In contrast to current strategies employed in clinical practice, these results suggest that adjunctive aripiprazole is a logical strategy in patients unresponsive to ADT. TRIAL REGISTRATION ClinicalTrials.gov identifiers: NCT00105196, NCT00095758, NCT00095823.
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Affiliation(s)
- David L Dunner
- Center for Anxiety and Depression, Mercer Island, Washington (Dr Dunner); Otsuka Pharmaceutical Development and Commercialization, Inc, Princeton, New Jersey (Drs Baker and Forbes); and Bristol-Myers Squibb, Wallingford, Connecticut (Drs Berman, Laubmeier, and Manos). Dr Laubmeier is currently an employee of Otsuka, and Dr Forbes is currently employed by Genentech
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Marcus RN, Owen R, Manos G, Mankoski R, Kamen L, McQuade RD, Carson WH, Findling RL. Safety and tolerability of aripiprazole for irritability in pediatric patients with autistic disorder: a 52-week, open-label, multicenter study. J Clin Psychiatry 2011; 72:1270-6. [PMID: 21813076 DOI: 10.4088/jcp.09m05933] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2009] [Accepted: 01/03/2011] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Evaluate the long-term safety and tolerability of aripiprazole in the treatment of irritability in pediatric subjects (6-17 years) with autistic disorder. METHOD A 52-week, open-label, flexibly dosed (2-15 mg/d) study of the safety and tolerability of aripiprazole in outpatients with a DSM-IV-TR diagnosis of autistic disorder who either had completed 1 of 2 antecedent, 8-week randomized trials or were enrolled de novo (ie, not treated in the randomized trials). Safety and tolerability measures included incidences of adverse events, extrapyramidal symptoms, weight, metabolic measures, vital signs, and other clinical assessments. RESULTS Subjects were enrolled between September 2006 and June 2009. Three hundred thirty subjects entered the treatment phase: 86 de novo, 174 prior aripiprazole, and 70 prior placebo. A total of 199 (60.3%) subjects completed 52 weeks of treatment. Adverse events were experienced by 286/330 subjects (86.7%). Common adverse events included weight increase, vomiting, nasopharyngitis, increased appetite, pyrexia, upper respiratory tract infection, and insomnia. Discontinuations due to adverse events occurred in 35/330 randomized subjects (10.6%)-most commonly aggression and weight increase. One patient discontinued from the study due to a laboratory-related adverse event (moderately increased alanine transaminase and aspartate transaminase). Nine subjects experienced serious adverse events-most frequently aggression. Extrapyramidal symptoms-related adverse events occurred in 48/330 subjects (14.5%)-most commonly tremor (3.0%), psychomotor hyperactivity (2.7%), akathisia (2.4%), and dyskinesia (not tardive, 2.4%). At > 9 months' aripiprazole exposure (n = 220), mean change in body weight z score was 0.33 and body mass index z score was 0.31. The percentages of subjects with clinically significant fasting metabolic abnormalities at > 9 months were 2% for glucose, 5% for total cholesterol, 7% for low-density lipoprotein cholesterol, 30% for high-density lipoprotein cholesterol, and 5% for triglycerides. CONCLUSIONS Aripiprazole was generally safe and well tolerated in the long-term treatment of irritability associated with autistic disorder in pediatric subjects. Weight should be proactively monitored during long-term treatment. TRIAL REGISTRATION clinical trials.gov Identifier: NCT00365859.
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Affiliation(s)
- Ronald N Marcus
- Department of Research and Development, Bristol-Myers Squibb, 5 Research Parkway, Wallingford, CT 06492, USA.
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Millichamp J, Ali E, Brandon NP, Brown RJC, Hodgson D, Kalyvas C, Manos G, Brett DJL. Application of a GaPO4 Crystal Microbalance for the Detection of Coke Formation in High-Temperature Reactors and Solid Oxide Fuel Cells. Ind Eng Chem Res 2011. [DOI: 10.1021/ie200188z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jason Millichamp
- Centre for CO2 Technology, Department of Chemical Engineering, University College London, London, WC1E 7JE, U.K
| | - Ebrahim Ali
- Centre for CO2 Technology, Department of Chemical Engineering, University College London, London, WC1E 7JE, U.K
| | | | | | - David Hodgson
- Centre for CO2 Technology, Department of Chemical Engineering, University College London, London, WC1E 7JE, U.K
| | | | - George Manos
- Centre for CO2 Technology, Department of Chemical Engineering, University College London, London, WC1E 7JE, U.K
| | - Daniel J. L. Brett
- Centre for CO2 Technology, Department of Chemical Engineering, University College London, London, WC1E 7JE, U.K
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Marcus RN, Owen R, Manos G, Mankoski R, Kamen L, McQuade RD, Carson WH, Corey-Lisle PK, Aman MG. Aripiprazole in the treatment of irritability in pediatric patients (aged 6-17 years) with autistic disorder: results from a 52-week, open-label study. J Child Adolesc Psychopharmacol 2011; 21:229-36. [PMID: 21663425 DOI: 10.1089/cap.2009.0121] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AIM To report the long-term efficacy of aripiprazole in the treatment of irritability in children and adolescents (ages 6-17 years) with autistic disorder. METHODS This was a 52-week, open-label, flexible-dose (2-15 mg/day) study of aripiprazole for the treatment of children and adolescents with irritability associated with autistic disorder. Eligible subjects were enrolled from two 8-week randomized trials or were enrolled as de novo subjects. "Prior aripiprazole" subjects had received treatment with aripiprazole for 8 weeks before entering this study. Evaluation of efficacy, a secondary objective after evaluation of safety and tolerability in this study, was conducted using the caregiver-rated Aberrant Behavior Checklist-Irritability subscale and the clinician-rated Clinical Global Impression-Improvement score. RESULTS Three hundred thirty subjects received treatment (de novo, n = 86; prior aripiprazole, n = 174; prior placebo, n = 70) and 199 subjects (60.3%) completed 52 weeks of treatment. At their last study visit, 38.2% of subjects were receiving concomitant central nervous system medications (commonly antidepressants, 13.4%; psychostimulants, 11.5%; antiepileptics, 5.9%). At week 52 (observed cases data set), the mean change from baseline in Aberrant Behavior Checklist Irritability subscale scores was -8.0 in de novo subjects and -6.1 in prior placebo subjects; prior aripiprazole subjects maintained symptom improvement that was achieved with treatment in the prior study. At endpoint, the majority of subjects had a Clinical Global Impressions-Improvement score of 2 (much improved) or 1 (very much improved). CONCLUSION Aripiprazole reduced symptoms of irritability associated with autistic disorder in pediatric subjects ages 6-17 years who were studied for up to 1 year.
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Landsberg W, Loze JY, Lau G, Manos G, McQuade R, Kamen L, Marcus R, Mankoski R. Safety and tolerability of aripiprazole in the treatment of irritability associated with autistic disorder in pediatric patients: Results from a 52-week open-label study. Eur Psychiatry 2011. [DOI: 10.1016/s0924-9338(11)72028-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
ObjectiveEvaluate the time-course, severity and resolution patterns of adverse events (AEs) occurring with long-term aripiprazole treatment for irritability associated with autistic disorder.MethodsParticipants were treated with aripiprazole in a 52-week, open-label, flexibly dosed (2–15 mg/day) study. Subjects had either completed one of two 8-week randomised trials or were de novo. AEs with an incidence of ≥10% were evaluated by incidence, peak first onset, severity, percent resolved and time to resolution.ResultsA total of 330 subjects entered open-label treatment; 199 completed 52 weeks. Mean dose for the population stabilised at around 10 mg/day after approximately 4 months. Thirteen AEs had an incidence of ≥10%; most were mild or moderate in severity. Vomiting, diarrhoea and headache had an early first onset and tended to resolve fairly quickly.Sedation, fatigue and insomnia also appeared early and resolved in a majority of cases, but not as quickly. Increased appetite appeared early (followed by increased weight) and fewer weight-related AEs resolved. More than half of the subjects increased their weight by at least one percentile category rank; nevertheless, only a small proportion of subjects with normal baseline metabolic or glucose measures had a treatment-emergent, clinically relevant laboratory abnormality. Nasopharyngitis, upper respiratory infection, cough, nasal congestion and pyrexia all had peak onset at variable times during the study, resolving in nearly all cases, with short time to resolution.ConclusionAEs were mostly mild or moderate and of variable duration. Increased weight was observed.
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Aman MG, Kasper W, Manos G, Mathew S, Marcus R, Owen R, Mankoski R. Line-item analysis of the Aberrant Behavior Checklist: results from two studies of aripiprazole in the treatment of irritability associated with autistic disorder. J Child Adolesc Psychopharmacol 2010; 20:415-22. [PMID: 20973712 DOI: 10.1089/cap.2009.0120] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES The aim of this study was to evaluate the efficacy of aripiprazole in the treatment of discrete symptoms of irritability associated with autistic disorder, as well as other symptoms captured on the Aberrant Behavior Checklist (ABC). METHODS This was a post hoc analysis of data from two 8-week, randomized, double-blind, multicenter trials to evaluate the efficacy of aripiprazole dosed flexibly (2-15 mg/day, n=47) or fixed (5, 10, or 15 mg/day, n = 166) versus placebo (flexibly dosed, n = 51; fixed dose, n = 52). The effects of treatment on the 58 ABC items were evaluated. RESULTS Statistically significantly greater improvement was seen with aripiprazole versus placebo (p < 0.05) for all arms in both trials on the ABC-Irritability total subscale score and on the following individual ABC-Irritability items: Mood changes quickly, cries/screams inappropriately, and stamps feet/bangs objects. Several additional items measuring tantrum-like behaviors improved in the flexibly dosed trial and at least one arm of the fixed-dose trial (p < 0.05). Measures of self-injurious behavior, which had low baseline values, demonstrated numerical, but not statistically significant, improvement in both trials. Statistically significantly greater improvement in ABC Stereotypic Behavior and Hyperactivity total subscale scores was also consistent across all arms in both trials. In particular, there was a cluster of items related to hyperkinesis that were consistently sensitive to treatment. CONCLUSIONS Aripiprazole is efficacious in the treatment of irritability in children and adolescents with autistic disorder, particularly with respect to symptoms associated with tantrum behavior.
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Affiliation(s)
- Michael G Aman
- The Nisonger Center, The Ohio State University, Columbus, Ohio 43210, USA.
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Gulab H, Jan MR, Shah J, Manos G. Plastic catalytic pyrolysis to fuels as tertiary polymer recycling method: effect of process conditions. J Environ Sci Health A Tox Hazard Subst Environ Eng 2010; 45:908-915. [PMID: 20419587 DOI: 10.1080/10934521003709206] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
This paper presents results regarding the effect of various process conditions on the performance of a zeolite catalyst in pyrolysis of high density polyethylene. The results show that polymer catalytic degradation can be operated at relatively low catalyst content reducing the cost of a potential industrial process. As the polymer to catalyst mass ratio increases, the system becomes less active, but high temperatures compensate for this activity loss resulting in high conversion values at usual batch times and even higher yields of liquid products due to less overcracking. The results also show that high flow rate of carrier gas causes evaporation of liquid products falsifying results, as it was obvious from liquid yield results at different reaction times as well as the corresponding boiling point distributions. Furthermore, results are presented regarding temperature effects on liquid selectivity. Similar values resulted from different final reactor temperatures, which are attributed to the batch operation of the experimental equipment. Since polymer and catalyst both undergo the same temperature profile, which is the same up to a specific time independent of the final temperature. Obviously, this common temperature step determines the selectivity to specific products. However, selectivity to specific products is affected by the temperature, as shown in the corresponding boiling point distributions, with higher temperatures showing an increased selectivity to middle boiling point components (C(8)-C(9)) and lower temperatures increased selectivity to heavy components (C(14)-C(18)).
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Affiliation(s)
- Hussain Gulab
- Institute of Chemical Sciences, University of Peshawar, Peshawar, Pakistan
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Owen R, Sikich L, Marcus RN, Corey-Lisle P, Manos G, McQuade RD, Carson WH, Findling RL. Aripiprazole in the treatment of irritability in children and adolescents with autistic disorder. Pediatrics 2009; 124:1533-40. [PMID: 19948625 DOI: 10.1542/peds.2008-3782] [Citation(s) in RCA: 350] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE The objective of this study was to evaluate short-term efficacy and safety of aripiprazole in the treatment of irritability in children and adolescents with autistic disorder who were manifesting behaviors such as tantrums, aggression, self-injurious behavior, or a combination of these. METHODS This 8-week, double-blind, randomized, placebo-controlled, parallel-group study was conducted of children and adolescents (aged 6-17 years) with autistic disorder. Patients were randomly assigned (1:1) to flexibly dosed aripiprazole (target dosage: 5, 10, or 15 mg/day) or placebo. Efficacy outcome measures included the Aberrant Behavior Checklist irritability subscale and the Clinical Global Impression-Improvement score (CGI-I). Safety and tolerability were also assessed. RESULTS Ninety-eight patients were randomly assigned to receive placebo (n = 51) or aripiprazole (n = 47). Mean improvement in Aberrant Behavior Checklist irritability subscale score was significantly greater with aripiprazole than with placebo from week 1 through week 8. Aripiprazole demonstrated significantly greater global improvements than placebo, as assessed by the mean CGI-I score from week 1 through week 8; however, clinically significant residual symptoms may still persist for some patients. Discontinuation rates as a result of adverse events (AEs) were 10.6% for aripiprazole and 5.9% for placebo. Extrapyramidal symptom-related AE rates were 14.9% for aripiprazole and 8.0% for placebo. No serious AEs were reported. Mean weight gain was 2.0 kg on aripiprazole and 0.8 kg on placebo at week 8. CONCLUSIONS Aripiprazole was efficacious in children and adolescents with irritability associated with autistic disorder and was generally safe and well tolerated.
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Affiliation(s)
- Randall Owen
- Bristol-Myers Squibb, 5 Research Parkway, Wallingford, Connecticut 06492, USA.
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Dunne LJ, Furgani A, Jalili S, Manos G. Monte-Carlo simulations of methane/carbon dioxide and ethane/carbon dioxide mixture adsorption in zeolites and comparison with matrix treatment of statistical mechanical lattice model. Chem Phys 2009. [DOI: 10.1016/j.chemphys.2009.02.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Rappaport SA, Marcus RN, Manos G, McQuade RD, Oren DA. A randomized, double-blind, placebo-controlled tolerability study of intramuscular aripiprazole in acutely agitated patients with Alzheimer's, vascular, or mixed dementia. J Am Med Dir Assoc 2008; 10:21-7. [PMID: 19111849 DOI: 10.1016/j.jamda.2008.06.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2008] [Revised: 06/18/2008] [Accepted: 06/19/2008] [Indexed: 12/11/2022]
Abstract
OBJECTIVES To evaluate the tolerability of intramuscular (IM) aripiprazole in patients with agitation associated with dementia. DESIGN A 24-hour, double-blind, placebo-controlled, randomized study. SETTING Sixteen healthcare facilities in the United States. PARTICIPANTS A total of 129 patients with acute agitation associated with Alzheimer's, vascular or mixed dementia in healthcare facilities. INTERVENTION Patients were randomized to IM aripiprazole (5 mg, 10 mg, or 15 mg) or IM placebo administered in divided doses 2 hours apart. MEASUREMENTS Safety assessments included adverse event (AE) reporting, vital signs, and electrocardiograms. Preliminary efficacy analyses used the Positive and Negative Syndrome Scale-Excited Component (PEC) scores and Agitation-Calmness Evaluation Scale (ACES). RESULTS There was greater incidence of AEs with IM aripiprazole (50% to 60%) than IM placebo (32.0%), but over 90% were mild or moderate in severity. The incidence of oversedation was low. PEC scores showed greater improvements in agitation with IM aripiprazole 10 mg and 15 mg compared with IM placebo. CONCLUSION A total of 10 mg or 15 mg of IM aripiprazole administered in divided doses was safe and well tolerated for treatment of agitation associated with Alzheimer's, vascular, or mixed dementia in long-term care. Preliminary analysis showed greater efficacy compared with IM placebo.
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Dunne LJ, Murrell JN, Manos G. Exact statistical mechanical lattice model and classical Lindemann theory of melting of inert gas solids. Chem Phys Lett 2008. [DOI: 10.1016/j.cplett.2008.03.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Affiliation(s)
- Baodong Wang
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
| | - George Manos
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
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Wang B, Manos G. Acid Site Characterization of Coked USHY Zeolite Using Temperature Programmed Desorption with a Component-Nonspecific Detector. Ind Eng Chem Res 2007. [DOI: 10.1021/ie0708733] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Baodong Wang
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, U.K
| | - George Manos
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, U.K
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Daniel DG, Currier GW, Zimbroff DL, Allen MH, Oren D, Manos G, McQuade R, Pikalov AA, Crandall DT. Efficacy and safety of oral aripiprazole compared with haloperidol in patients transitioning from acute treatment with intramuscular formulations. J Psychiatr Pract 2007; 13:170-7. [PMID: 17522560 DOI: 10.1097/01.pra.0000271658.86845.81] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To report efficacy and safety of transitioning patients receiving intramuscular (IM) formulations of aripiprazole or haloperidol to their respective oral formulations. METHODS 448 agitated patients with schizophrenia (73%) or schizoaffective disorder (27%) were randomized to receive aripiprazole IM 9.75 mg, haloperidol IM 6.5 mg, or placebo IM within 24 hours. Patients treated with aripiprazole IM or haloperidol IM who completed this 24-hour IM phase were transitioned to the respective blinded oral formulations for 4 days (aripiprazole 10-15 mg/day, n = 153; haloperidol 7.5-10 mg/day, n = 151). Patients treated with placebo IM were transitioned to oral aripiprazole (analysis not included). The primary efficacy measure was mean change in Positive and Negative Syndrome Scale-Excited Component (PEC) score from baseline of oral phase (last value from 24-hour IM phase) to endpoint (study day 5, last observation carried forward). RESULTS During the oral phase, aripiprazole 15 mg and haloperidol 10 mg were both effective in maintaining responses achieved on all efficacy measures during the 24-hour IM phase. Mean improvements in PEC scores from study day 1 to 5 were -1.37 for aripiprazole and -1.40 for haloperidol (p = NS for aripiprazole versus haloperidol). Oral aripiprazole was well tolerated. Extrapyramidal symptom-related adverse events were lower for aripiprazole (1.3%) than haloperidol (8.0%). Nausea and vomiting occurred more frequently in patients receiving aripiprazole (3.9% and 2.6%, respectively) than in those receiving haloperidol (0.7% and 1.3%, respectively). CONCLUSIONS Acutely agitated patients with schizophrenia or schizoaffective disorder treated with aripiprazole IM or haloperidol IM demonstrated similar effective and safe transition to their respective oral formulations. Initial benefits of reduced agitation and improved clinical status during the IM phase of the study were maintained throughout the oral phase of the study with good tolerability.
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Abstract
OBJECTIVE To evaluate response to intramuscular (IM) aripiprazole injections using secondary analyses from clinical trials. METHODS Data from one trial in patients with bipolar I disorder and two trials in patients with schizophrenia were assembled and used for three secondary analyses. Analysis 1 looked at data from "nonsedated" patients (i.e., patients with scores < 8 [deep sleep] or 9 [unarousable] on the Agitation-Calmness Evaluation Scale [ACES]). In analysis 2, patients were subdivided into "higher" and "lower" agitation groups according to a median split on the baseline score for the Positive and Negative Syndrome Scale (PANSS) Excited Component (PEC) (median = 18). Analysis 3 looked at the patients who received a second injection within the 24-hour study period. In each analysis, the mean change from baseline in PEC scores was re-evaluated. RESULTS Analysis 1 found that nonsedated patients with bipolar I disorder and schizophrenia showed significant decreases in PEC scores following treatment with aripiprazole IM (p < 0.005). Analysis 2 found that aripiprazole IM significantly reduced agitation compared with placebo in patients with bipolar I disorder who had lower baseline agitation (p < 0.01), while patients with bipolar I disorder who had higher baseline agitation showed similarly large PEC decreases with aripiprazole (-9.9) and placebo (-7.9). Patients with schizophrenia showed significant reductions in PEC scores compared with placebo regardless of baseline level of agitation (p < 0.01). Analysis 3 found that a second injection of aripiprazole IM significantly reduced agitation in patients with bipolar I disorder or schizophrenia (p < 0.05); repeated injections were safe and well tolerated. CONCLUSION Improvements with aripiprazole IM appeared to be specific to core agitation symptoms, as opposed to nonspecific sedation, and to be independent of baseline level of agitation. Furthermore, patients benefited from a repeated aripiprazole injection when clinically warranted. These results address important clinical issues regarding use of aripiprazole IM in treating agitation.
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Affiliation(s)
- Glenn W Currier
- Department of Psychiatry, University of Rochester Medical Center, Rochester, NY 14642, USA.
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Zimbroff DL, Marcus RN, Manos G, Stock E, McQuade RD, Auby P, Oren DA. Management of acute agitation in patients with bipolar disorder: efficacy and safety of intramuscular aripiprazole. J Clin Psychopharmacol 2007; 27:171-6. [PMID: 17414241 DOI: 10.1097/jcp.0b13e318033bd5e] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
To investigate the efficacy and safety of intramuscular (IM) aripiprazole for the treatment of agitation in patients with bipolar I disorder, manic or mixed episodes. In total, 301 patients experiencing acute agitation were randomized to IM aripiprazole 9.75 mg per injection (n = 78), IM aripiprazole 15 mg per injection (n = 78), IM lorazepam 2 mg per injection (n = 70), or IM placebo (n = 75) in this double-blind multicenter study. Patients could receive up to 3 injections over 24 hours. Primary efficacy measure was mean change in Positive and Negative Syndrome Scale Excited Component score from baseline at 2 hours after first injection. Mean improvements in Positive and Negative Syndrome Scale Excited Component score at 2 hours were significantly greater with IM aripiprazole (9.75 mg, -8.7; 15 mg, -8.7) and IM lorazepam (-9.6) versus IM placebo (-5.8; P <or= 0.001). For all other efficacy measures, all 3 active treatments showed significantly greater improvements over IM placebo at 2 hours (P < 0.05), with similar improvements across the active treatments. Significant differences over IM placebo were seen by 45 to 60 minutes for several efficacy parameters. Both IM aripiprazole doses were well tolerated; the safety profile was similar to oral aripiprazole. Oversedation (Agitation-Calmness Evaluation Scale score of 8 or 9) during 2 hours after first injection was less frequent with IM aripiprazole 9.75 mg (6.7%) and IM placebo (6.8%) versus IM aripiprazole 15 mg (17.3%) and IM lorazepam (19.1%). IM aripiprazole 9.75 and 15 mg are effective and well tolerated for acute agitation in bipolar disorder, although the low incidence of oversedation suggests a risk-benefit profile for IM aripiprazole 9.75 mg.
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Affiliation(s)
- Dan L Zimbroff
- Pacific Clinical Research Medical Group, Upland, CA 91786, USA.
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Oren D, Manos G, Markovic O, McQuade R. Intramuscular aripiprazole for the treatment of acute agitation associated with schizophrenia: Sub-analysis of a double-blind, controlled, dose-ranging study. Eur Psychiatry 2007. [DOI: 10.1016/j.eurpsy.2007.01.397] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Daniel D, Markovic O, Crandall D, Manos G, McQuade R, Gutierrez-Esteinou R, Pikalov A, Oren D. Transitioning from intramuscular (IM) to oral aripiprazole in patients with schizophrenia. Eur Psychiatry 2007. [DOI: 10.1016/j.eurpsy.2007.01.398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Andrezina R, Marcus RN, Oren DA, Manos G, Stock E, Carson WH, McQuade RD. Intramuscular aripiprazole or haloperidol and transition to oral therapy in patients with agitation associated with schizophrenia: sub-analysis of a double-blind study. Curr Med Res Opin 2006; 22:2209-19. [PMID: 17076982 DOI: 10.1185/030079906x148445] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVE A sub-population analysis of 325 patients with agitation (Positive and Negative Syndrome Scale Excited Component [PEC] score > or = 15 and < or = 32; score of > or = 4 on > or = 2 items) associated with schizophrenia in a randomized, double-blind study investigating the efficacy and tolerability of intramuscular (IM) aripiprazole 9.75 mg, IM haloperidol 6.5 mg, or IM placebo and the transition to oral therapy. RESEARCH DESIGN AND METHODS Over 24 h, patients could receive up to three IM injections; the second and third administered > or = 2 and > or = 4 h, respectively, after the first, if deemed clinically necessary. Following IM treatment, oral aripiprazole or haloperidol was administered for 4 days. The primary efficacy measure was the mean change in PEC score from baseline at 2 h. RESULTS At 2 h, mean improvements in PEC scores with IM aripiprazole (-8.0) were significantly greater versus IM placebo (-5.7; p < or = 0.01), and similar versus IM haloperidol (-8.3). Secondary efficacy measures also significantly improved with active IM treatment versus IM placebo. Continuation with oral treatment provided continued efficacy with both active treatments. The safety profiles of IM and oral aripiprazole were similar. The incidence of extrapyramidal symptom-related adverse events was 0% with IM aripiprazole, 1.6% with IM placebo and 16.5% with IM haloperidol. CONCLUSION Intramuscular aripiprazole is effective in patients with acute agitation associated with schizophrenia, comparable to IM haloperidol, and enables convenient transfer to oral aripiprazole therapy.
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Affiliation(s)
- R Andrezina
- Riga Mental Health Care Centre, Department of Psychiatry, Tvaika Street 2, Riga, LV-1005, Latvia.
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Andrezina R, Josiassen RC, Marcus RN, Oren DA, Manos G, Stock E, Carson WH, Iwamoto T. Intramuscular aripiprazole for the treatment of acute agitation in patients with schizophrenia or schizoaffective disorder: a double-blind, placebo-controlled comparison with intramuscular haloperidol. Psychopharmacology (Berl) 2006; 188:281-92. [PMID: 16953381 DOI: 10.1007/s00213-006-0541-x] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2006] [Accepted: 07/28/2006] [Indexed: 11/29/2022]
Abstract
INTRODUCTION This double-blind, placebo-controlled study investigated the efficacy and safety of intramuscular (IM) aripiprazole and IM haloperidol for the treatment of acute agitation in patients with schizophrenia or schizoaffective disorder. MATERIALS AND METHODS Four-hundred and forty-eight patients were randomized (2:2:1 ratio) to IM aripiprazole 9.75 mg, IM haloperidol 6.5 mg, or IM placebo. Patients could receive up to three injections over the first 24 h, with second and third injections administered > or =2 and > or =4 h, respectively, after the first if deemed clinically necessary. Primary efficacy measure was mean change in Positive and Negative Syndrome Scale Excited Component (PEC) score from baseline to 2 h. RESULTS Mean improvement in PEC at 2 h was significantly greater for IM aripiprazole (-7.27) vs placebo (-4.78; p<0.001); IM aripiprazole was noninferior to IM haloperidol (-7.75) on PEC. All secondary efficacy measures showed significantly greater improvements at 2 h for IM aripiprazole and IM haloperidol over placebo. Mean number of injections/patient and percentage of patients requiring benzodiazepines were significantly lower for IM aripiprazole vs placebo (p<0.01). IM aripiprazole was well tolerated. Extrapyramidal symptom-related adverse events were similar for aripiprazole (1.7%) and placebo (2.3%) and lower than with haloperidol (12.6%). CONCLUSION These results show that IM aripiprazole is an effective treatment, comparable to IM haloperidol, and well-tolerated for acute agitation in patients with schizophrenia.
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Affiliation(s)
- Raisa Andrezina
- Department of Psychiatry, Riga Mental Health Care Centre, Tvaika Street 2, Riga, 1005, Latvia
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Kolettas E, Thomas C, Leneti E, Skoufos I, Mbatsi C, Sisoula C, Manos G, Evangelou A. Rosmarinic acid failed to suppress hydrogen peroxide-mediated apoptosis but induced apoptosis of Jurkat cells which was suppressed by Bcl-2. Mol Cell Biochem 2006; 285:111-20. [PMID: 16534555 DOI: 10.1007/s11010-005-9064-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2005] [Accepted: 10/21/2005] [Indexed: 11/25/2022]
Abstract
Rosmarinic acid (RosA), frequently found as a secondary metabolite in herbs and medicinal plants, has exhibited antioxidative and anti-inflammatory activities. RosA was shown to inhibit the proliferation and induce apoptosis of Jurkat T cells but the mechanism of action of RosA in apoptosis remains elusive. RosA inhibited the proliferation of Jurkat cells in a dose-dependent manner by suppressing the expression of cyclin D3 and p21(Cip1/Waf1) and up-regulating p27(Kip1). RosA induced apoptosis of Jurkat cells in a dose-dependent manner and failed to protect them from hydrogen peroxide (H2O2)-mediated apoptosis. Induction of apoptosis by RosA correlated with suppression of Bcl-2 but not of Bak or PUMA. Overexpression of Bcl-2 protected Jurkat cells from both H2O2- and RosA-induced apoptosis by altering the ratio of anti- to pro-apoptotic members of the Bcl-2 family. In conclusion, RosA inhibited Jurkat cell proliferation by altering the expression of cyclins and cyclin-dependent kinase inhibitors and induced apoptosis most likely acting through the mitochondrial pathway and possessed no anti-oxidant properties.
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Affiliation(s)
- Evangelos Kolettas
- Cell and Molecular Physiology Unit, Laboratory of Physiology, School of Medicine, University of Ioannina, 45110, Ioannina, Greece.
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Dunne LJ, Murrell JN, Manos G, Rekabi M. Exact matrix computation of the statistical mechanics of a cell model of hard sphere phase behaviour. Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2006.01.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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