Phase I and registry study of autologous bone marrow concentrate evaluated in PDE5 inhibitor refractory erectile dysfunction

Mark Bieri, Elias Said, Gabrielle Antonini, Donald Dickerson, Jorge Tuma, Courtney E Bartlett, Amit N Patel, Alexander Gershman, Mark Bieri, Elias Said, Gabrielle Antonini, Donald Dickerson, Jorge Tuma, Courtney E Bartlett, Amit N Patel, Alexander Gershman

Abstract

Background: Bone marrow mononuclear cells have been successfully utilized for numerous regenerative purposes. In the current study, patients suffering from erectile dysfunction (ED) unresponsive to phosphodiesterase 5 inhibitors were administered autologous bone marrow concentrate delivered intracavernously utilizing a point of care FDA cleared medical device.

Methods: A total of 40 patients were treated in the primary trial and 100 in the clinical registry, with the longest follow up of 12 months.

Results: Minimal treatment associated adverse effects where observed related to short term bruising at the site of harvest or injection. No long-term adverse events were noted related to the intervention. Mean improvements in IIEF-5 score were 2 in the Caverstem 1.0 low dose group, 3 in the high dose Caverstem 1.0 group and 9 in the Caverstem 2.0 group. Furthermore, improvements peaked by 3 months and maintained at 6 months follow-up.

Conclusion: These data support the safety and efficacy of point of care, minimally to non-manipulated, non-expanded bone marrow concentrate for the treatment of ED. Trial registration Funded by Creative Medical Health, Inc.; Clinicaltrials.gov number: NCT03699943; https://ichgcp.net/clinical-trials-registry/NCT03699943?term=caverstem&rank=1; initially registered December 12, 2015.

Keywords: Bone; Dysfunction; Erectile; Marrow.

Conflict of interest statement

ANP and DD are a board members of Creative Medical Health. The authors declare that they have no competing interests.

References

    1. Irwin GM. Erectile dysfunction. Prim Care. 2019;46(2):249–255.
    1. Nicolini Y, et al. Back to stir it up: erectile dysfunction in an evolutionary, developmental, and clinical perspective. J Sex Res. 2019;56(3):378–390.
    1. Garza-Gangemi AM, Sotomayor-de Zavaleta M. Erectile dysfunction therapy in countries where implant is economically not feasible. Transl Androl Urol. 2017;6(2):176–182.
    1. Ajo R, et al. Erectile dysfunction in patients with chronic pain treated with opioids. Med Clin (Barc) 2017;149(2):49–54.
    1. Shivananda MJ, Rao TS. Sexual dysfunction in medical practice. Curr Opin Psychiatry. 2016;29(6):331–335.
    1. Raharinavalona SA, et al. What is the best biological parameter to predict erectile dysfunction in men aged > 55 years with type 2 diabetes? J Diabetes Investig. 2019
    1. Faselis C, et al. Microvascular complications of type 2 diabetes mellitus. Curr Vasc Pharmacol. 2019
    1. Mahbub MI, et al. Frequency and predictors of erectile dysfunction in Bangladeshi men with type 2 diabetes mellitus: experience from a tertiary center. Mymensingh Med J. 2019;28(1):137–143.
    1. Karabakan M, et al. A new proof for the relationship between erectile dysfunction and atherosclerosis: fragmented QRS? Int J Impot Res. 2019
    1. Wespes E. Smooth muscle pathology and erectile dysfunction. Int J Impot Res. 2002;14(Suppl 1):S17–S21.
    1. McMahon CG. Current diagnosis and management of erectile dysfunction. Med J Aust. 2019;210(10):469–476.
    1. Hatzimouratidis K, Hatzichristou DG. Phosphodiesterase type 5 inhibitors: unmet needs. Curr Pharm Des. 2009;15(30):3476–3485.
    1. Chew KK, et al. Erectile dysfunction as a predictor for subsequent atherosclerotic cardiovascular events: findings from a linked-data study. J Sex Med. 2010;7(1 Pt 1):192–202.
    1. Aversa A, et al. Endothelial dysfunction and erectile dysfunction in the aging man. Int J Urol. 2010;17(1):38–47.
    1. Rogers JH, Rocha-Singh KJ. Endovascular therapy for vasculogenic erectile dysfunction. Curr Treat Options Cardiovasc Med. 2012;14(2):193–202.
    1. Kendirci M, et al. Transplantation of nonhematopoietic adult bone marrow stem/progenitor cells isolated by p75 nerve growth factor receptor into the penis rescues erectile function in a rat model of cavernous nerve injury. J Urol. 2010;184(4):1560–1566.
    1. Yu XY, et al. The effects of mesenchymal stem cells on c-kit up-regulation and cell-cycle re-entry of neonatal cardiomyocytes are mediated by activation of insulin-like growth factor 1 receptor. Mol Cell Biochem. 2009;332(1–2):25–32.
    1. Shabbir A, et al. Heart failure therapy mediated by the trophic activities of bone marrow mesenchymal stem cells: a noninvasive therapeutic regimen. Am J Physiol. 2009;296(6):H1888–H1897.
    1. Chen L, et al. Paracrine factors of mesenchymal stem cells recruit macrophages and endothelial lineage cells and enhance wound healing. PLoS ONE. 2008;3(4):e1886.
    1. Fan W, Crawford R, Xiao Y. The ratio of VEGF/PEDF expression in bone marrow mesenchymal stem cells regulates neovascularization. Differentiation. 2011;81(3):181–191.
    1. Jiang SY, Xie XT, Zhou JJ. Gene profile and fibroblast growth factor 2 expression in mesenchymal stem cell. Chin J Pediatr. 2009;47(3):218–220.
    1. Ichim TE, et al. Mesenchymal stem cells as anti-inflammatories: implications for treatment of Duchenne muscular dystrophy. Cell Immunol. 2010;260(2):75–82.
    1. Bae KS, et al. Neuron-like differentiation of bone marrow-derived mesenchymal stem cells. Yonsei Med J. 2011;52(3):401–412.
    1. Qiu X, et al. Intracavernous transplantation of bone marrow-derived mesenchymal stem cells restores erectile function of streptozocin-induced diabetic rats. J Sex Med. 2011;8(2):427–436.
    1. Maiorino MI, et al. Circulating endothelial progenitor cells in type 1 diabetic patients with erectile dysfunction. Endocrine. 2015;49(2):415–421.
    1. Liao CH, et al. Restoration of erectile function with intracavernous injections of endothelial progenitor cells after bilateral cavernous nerve injury in rats. Andrology. 2015;3(5):924–932.
    1. Miyamoto K, et al. Rat cavernous nerve reconstruction with CD133 + cells derived from human bone marrow. J Sex Med. 2014;11(5):1148–1158.
    1. Rhoden EL, et al. The use of the simplified International Index of Erectile Function (IIEF-5) as a diagnostic tool to study the prevalence of erectile dysfunction. Int J Impot Res. 2002;14(4):245–250.
    1. Kaufman JM, et al. Evaluation of erectile dysfunction by dynamic infusion cavernosometry and cavernosography (DICC). Multi-institutional study. Urology. 1993;41(5):445–451.
    1. Zhong W, et al. In vivo comparison of the bone regeneration capability of human bone marrow concentrates vs. platelet-rich plasma. PLoS ONE. 2012;7(7):e40833.
    1. Al Demour S, et al. Safety and potential therapeutic effect of two intracavernous autologous bone marrow derived mesenchymal stem cells injections in diabetic patients with erectile dysfunction: an open label phase i clinical trial. Urol Int. 2018;101(3):358–365.
    1. Haney NM, et al. The use of stromal vascular fraction in the treatment of male sexual dysfunction: a review of preclinical and clinical studies. Sex Med Rev. 2019;7(2):313–320.
    1. .
    1. Yiou R, et al. Safety of intracavernous bone marrow-mononuclear cells for postradical prostatectomy erectile dysfunction: an open dose-escalation pilot study. Eur Urol. 2016;69(6):988–991.
    1. Scarpone M, et al. Isolation of clinically relevant concentrations of bone marrow mesenchymal stem cells without centrifugation. J Transl Med. 2019;17(1):10.

Source: PubMed

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