Author: Andrade, Eli Iola Gurgel ; Cherchiglia, Mariangela Leal ; Brandao, Cristina Mariano Ruas ; Ferre, Felipe ; Acurcio, Francisco de Assis ; Guerra Junior, Augusto Afonso ; Machado, Gustavo Pinto da Matta

01 Aug 2012·Journal of Bone and Mineral ResearchQ1 · MEDICINE

A phase 3 trial of the efficacy and safety of oral recombinant calcitonin: The oral calcitonin in postmenopausal osteoporosis (ORACAL) trial

Q1 · MEDICINE

Article

Author: Neil Binkley ; Christine E Buben ; Michael Bolognese ; Tasneem Vally ; Colin Miller ; David S Krause ; Anna Sidorowicz-Bialynicka ; Richard Trout ; James P Gilligan

AbstractThe Oral Calcitonin in Postmenopausal Osteoporosis (ORACAL) study was a randomized, double-blind, double-dummy, active- and placebo-controlled, multiple-dose, phase 3 study to assess the efficacy and safety of oral recombinant calcitonin for treatment of postmenopausal osteoporosis. A total of 565 women age 46 to 86 (mean 66.5) years were randomized (4:3:2) to receive oral recombinant salmon calcitonin (rsCT) tablets (0.2 mg/d) plus placebo nasal spray, synthetic salmon calcitonin (ssCT) nasal spray (200 IU/d) plus placebo tablets, or placebo (placebo tablets plus placebo nasal spray), respectively for 48 weeks. All women received calcium (≥1000 mg/d) and vitamin D (800 IU/d). Women randomized to oral rsCT had a mean ± SD percent increase from baseline in lumbar spine bone mineral density (BMD) (1.5% ± 3.2%) that was greater than those randomized to ssCT nasal spray (0.78% ± 2.9%) or placebo (0.5% ± 3.2%). Lumbar spine BMD change in those receiving nasal calcitonin did not differ from placebo. Oral rsCT treatment also resulted in greater improvements in trochanteric and total proximal femur BMD than ssCT nasal spray. Reductions in bone resorption markers with oral rsCT were greater than those observed in ssCT nasal spray or placebo recipients. Approximately 80% of subjects in each treatment group experienced an adverse event, the majority of which were mild or moderate in intensity. Gastrointestinal system adverse events were reported by nearly one-half of women in all treatment groups and were the principal reason for premature withdrawals. Less than 10% of women experienced a serious adverse event and no deaths occurred. Overall, oral rsCT was superior to nasal ssCT and placebo for increasing BMD and reducing bone turnover. Oral rsCT was safe and as well tolerated as ssCT nasal spray or placebo. Oral calcitonin may provide an additional treatment alternative for women with postmenopausal osteoporosis. © 2012 American Society for Bone and Mineral Research.

01 Jul 2010·Biology of Blood and Marrow TransplantationQ2 · MEDICINE

Regenerative Stromal Cell Therapy in Allogeneic Hematopoietic Stem Cell Transplantation: Current Impact and Future Directions

Q2 · MEDICINE

Review

Author: Luis A. Solchaga ; Jeffery J. Auletta ; Wouter van't Hof ; Kenneth R. Cooke ; Robert J. Deans

Regenerative stromal cell therapy (RSCT) has the potential to become a novel therapy for preventing and treating acute graft-versus-host disease (GVHD) in the allogeneic hematopoietic stem cell transplant (HSCT) recipient. However, enthusiasm for using RSCT in allogeneic HSCT has been tempered by limited clinical data and poorly defined in vivo mechanisms of action. As a result, the full clinical potential of RSCT in supporting hematopoietic reconstitution and as treatment for GVHD remains to be determined. This manuscript reviews the immunomodulatory activity of regenerative stromal cells in preclinical models of allogeneic HSCT, and emphasizes an emerging literature suggesting that microenvironment influences RSC activation and function. Understanding this key finding may ultimately define the proper niche for RSCT in allogeneic HSCT. In particular, mechanistic studies are needed to delineate the in vivo effects of RSCT in response to inflammation and injury associated with allogeneic HSCT, and to define the relevant sites of RSC interaction with immune cells in the transplant recipient. Furthermore, development of in vivo imaging technology to correlate biodistribution patterns, desired RSC effect, and clinical outcome will be crucial to establishing dose-response effects and minimal biologic dose thresholds needed to advance translational treatment strategies for complications like GVHD.

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