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Vogg B, Poetzl J, Schwebig A, Sekhar S, Kivitz A, Krivtsova N, Renner O, Body JJ, Eastell R. The Totality of Evidence for SDZ-deno: A Biosimilar to Reference Denosumab. Clin Ther 2024:S0149-2918(24)00218-2. [PMID: 39294041 DOI: 10.1016/j.clinthera.2024.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Accepted: 08/12/2024] [Indexed: 09/20/2024]
Abstract
PURPOSE Sandoz biosimilar denosumab (GP2411 [SDZ-deno]; Jubbonti/Wyost) is approved by the US FDA, EMA and Health Canada for all indications of reference denosumab (REF-deno; Prolia/Xgeva), a fully human IgG2κ monoclonal antibody that binds with high affinity and specificity to receptor activator of nuclear factor kappa-B ligand (RANKL). Denosumab blocks RANKL, preventing bone resorption and loss of bone density/architecture in conditions characterized by excessive bone loss such as osteoporosis in postmenopausal women and metastatic bone disease, among others. METHODS This narrative review summarizes the totality of evidence (ToE) for SDZ-deno that supported its approval as Jubbonti/Wyost in the EU and US. FINDINGS Analytical evaluation indicated that SDZ-deno has high purity and structural homology with REF-deno. SDZ-deno also demonstrated similar binding affinities, size and charge variants, and disulfide isoforms to REF-deno, and did not trigger clinically meaningful antibody-dependent cellular cytotoxicity. In clinical evaluation, SDZ-deno was similar to REF-deno in pharmacokinetics (PK) and pharmacodynamics (PD) in a 39-week Phase I study in 502 healthy male participants, and to REF-deno in a 72-week Phase III study in 527 postmenopausal women with osteoporosis. In both studies, the 90% and 95% confidence intervals (for PK and PD endpoints, respectively) of the geometric mean ratios for AUCinf, Cmax (and AUClast in the Phase I study; PK endpoints), and area under the effect versus time curve of percent change from baseline in serum carboxy-terminal crosslinked telopeptide of type I collagen (PD endpoint), were fully contained within the prespecified equivalence margins (0.80, 1.25). The Phase III study also demonstrated SDZ-deno is similar in efficacy to REF-deno in postmenopausal women with osteoporosis, as the difference in percent change from baseline in lumbar spine bone mineral density at week 52 between REF-deno and SDZ-deno was fully contained within the prespecified equivalence margins (-1.45, 1.45). SDZ-deno was well tolerated in both studies. As the ToE has established biosimilarity of SDZ-deno and REF-deno, extrapolation to all indications is justified based on the common mechanism of action and the comparable PK, safety, and immunogenicity across all indications. IMPLICATIONS The ToE for SDZ-deno suggests it will be an effective biosimilar to REF-deno, and its lower unit price is anticipated to increase the number of appropriate patients who will benefit.
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Affiliation(s)
- Barbara Vogg
- Hexal AG (a Sandoz company), Holzkirchen, Germany.
| | | | | | | | - Alan Kivitz
- Altoona Center for Clinical Research, Duncansville, Pennsylvania
| | | | | | - Jean-Jacques Body
- Department of Medicine, University Hospital Brugmann, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Richard Eastell
- Division of Clinical Medicine, University of Sheffield, Sheffield, United Kingdom
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Tomaszewska‐Kiecana M, Carapuça E, Florez‐Igual A, Queiruga‐Parada J. MB09, a denosumab biosimilar candidate: Biosimilarity demonstration in a phase I study in healthy subjects. Clin Transl Sci 2024; 17:e70013. [PMID: 39206788 PMCID: PMC11359093 DOI: 10.1111/cts.70013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 08/05/2024] [Accepted: 08/07/2024] [Indexed: 09/04/2024] Open
Abstract
This was a Phase I, randomized, double-blinded, three-arm, single-dose, parallel study aimed to demonstrate pharmacokinetic (PK) similarity between MB09 (a denosumab biosimilar candidate) and reference denosumab (XGEVA® from European Union [EU-reference] and United States [US-reference]) in a healthy male population. The primary PK endpoints included: Area under the serum concentration versus time curve from time 0 to the last quantifiable concentration timepoint (AUC0-last); and maximum observed serum concentration (Cmax). Secondary endpoints included: AUC from time 0 extrapolated to infinity (AUC0-∞), time to reach maximum observed concentration, clearance, terminal phase half-life, pharmacodynamic, safety, and immunogenicity assessments. A total of 255 subjects were randomized (1:1:1) to receive a subcutaneous 35 mg dose of MB09 or reference denosumab. Cmax was reached after denosumab administration, followed by a decline in the concentration with similar terminal phase half-live across treatment arms. Systemic exposure of MB09 (AUC0-last and Cmax) was equivalent to the reference denosumab, as the 90% confidence intervals around the geometric least square mean ratios laid within the predefined acceptance limits (80.00%, 125.00%) across all comparisons. Pharmacodynamic parameters, based on the percent of change from baseline in serum C-terminal telopeptide of Type 1 collagen levels, were similar across the three arms. The treatments were considered safe and generally well tolerated, with 92 treatment-emergent adverse events reported (most Grade 2 and 3) and similarly distributed. Immunogenicity was low and similarly distributed. These results provide strong evidence that supports the biosimilarity between MB09 and denosumab reference products.
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Chen Y, Fang C, Yang Z, Qiu G, Tang S. Hypercalcemia in children induced by denosumab: a case report and an analysis of the FDA adverse event reporting system database. Expert Opin Drug Saf 2024:1-12. [PMID: 39007894 DOI: 10.1080/14740338.2024.2379446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 05/22/2024] [Indexed: 07/16/2024]
Abstract
BACKGROUND The potential risks of denosumab on pediatric patients have raised concerns about its safety. This article aims to analyze the adverse effects of denosumab in minors, with a specific focus on hypercalcemia. RESEARCH DESIGN AND METHODS A case study involving a child was analyzed. The OpenVigil 2.1 was utilized to extract adverse event data from the FAERS database, focusing on denosumab as the primary suspect drug in pediatric patients. The study also reviewed published cases of children developing hypercalcemia after discontinuing denosumab. RESULTS The incidence of denosumab induced hypercalcemia in individuals under 18 years old is significantly higher than the overall incidence. The signal value for hypercalcemia was higher in the male group and was highest in the adolescent group. Hypercalcemia usually appeared approximately 4 months after denosumab discontinuation. Males had a higher peak blood calcium level. Patients aged 0-11 years had a higher average peak serum calcium compared to aged 12-17 years. CONCLUSIONS This study highlights the risk of hypercalcemia after discontinuation of denosumab in minors, with young age and male gender identified as potential high-risk factors. These findings offer valuable safety warnings and preventative measures for the secure administration of this drug in pediatric populations.
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Affiliation(s)
- Yiyu Chen
- Department of Pharmacy, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Chuxuan Fang
- Department of Pharmacy, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Zhiyong Yang
- Department of PICU, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Guosheng Qiu
- Department of PICU, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Shuangyi Tang
- Department of Pharmacy, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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Jung J, Shim GJ, Park JS, Kwon YD, Ryu JI. Effect of anti-resorptive therapy on implant failure: a systematic review and meta-analysis. J Periodontal Implant Sci 2024; 54:54.e18. [PMID: 39058350 DOI: 10.5051/jpis.2304040202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 02/15/2024] [Accepted: 02/18/2024] [Indexed: 07/28/2024] Open
Abstract
PURPOSE This review was conducted to systematically assess the impact of bisphosphonates (BPs) and denosumab, used as anti-resorptive therapies, on the incidence of dental implant failure. METHODS Electronic and manual searches were performed in accordance with the described search protocol. Only articles that met the inclusion criteria were selected. The primary outcome was implant failure, while secondary outcomes included biological complications and comorbidities. Following data extraction, a quality assessment and meta-analysis were conducted. RESULTS Fourteen eligible studies were included in the analysis following a qualitative evaluation. BP administration, regardless of the timing of anti-resorptive therapy, did not significantly increase the risk of implant failure (odds ratio [OR], 1.40; 95% confidence interval, 0.83-2.34). Subgroup analysis revealed a slightly higher, although statistically insignificant, risk of failure in patients with a follow-up period of 3 years or more compared to those with a follow-up duration of less than 3 years (with ORs of 2.82 and 1.53, respectively). Due to a lack of eligible studies, a meta-analysis for denosumab could not be conducted. CONCLUSIONS Our findings suggest that BP treatment does not compromise the survival of dental implants. Specifically, in patients with osteoporosis, implant failure rates were not significantly influenced by the administration of BPs before the placement of dental implants, suggesting that low-dose BP therapy may not contraindicate implant placement. Nevertheless, regular check-ups and maintenance periodontal treatment must not be neglected, and concomitant biological factors should be considered to ensure the long-term success of implant rehabilitation.
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Affiliation(s)
- Junho Jung
- Department of Oral and Maxillofacial Surgery, Kyung Hee University College of Dentistry, Kyung Hee University Medical Center, Seoul, Korea
| | - Gyu-Jo Shim
- Department of Oral and Maxillofacial Surgery, Kyung Hee University College of Dentistry, Kyung Hee University Medical Center, Seoul, Korea
| | - Jung Soo Park
- Department of Periodontology, Korea University Anam Hospital, Seoul, Korea
| | - Yong-Dae Kwon
- Department of Oral and Maxillofacial Surgery, Kyung Hee University College of Dentistry, Kyung Hee University Medical Center, Seoul, Korea.
| | - Jae-In Ryu
- Department of Preventive and Social Dentistry, Kyung Hee University College of Dentistry, Seoul, Korea.
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Jeka S, Dokoupilová E, Kivitz A, Żuchowski P, Vogg B, Krivtsova N, Sekhar S, Banerjee S, Schwebig A, Poetzl J, Body JJ, Eastell R. Equivalence trial of proposed denosumab biosimilar GP2411 and reference denosumab in postmenopausal osteoporosis: the ROSALIA study. J Bone Miner Res 2024; 39:202-210. [PMID: 38477751 PMCID: PMC11338045 DOI: 10.1093/jbmr/zjae016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/29/2023] [Accepted: 01/29/2024] [Indexed: 03/14/2024]
Abstract
Denosumab is a monoclonal antibody used to reduce risk of fractures in osteoporosis. ROSALIA was a multicenter, double-blind, randomized, integrated phase I/phase III study comparing the efficacy, pharmacokinetics (PK), pharmacodynamics (PD), immunogenicity, and safety of proposed biosimilar denosumab GP2411 with reference denosumab (REF-DMAb) (Prolia®; Amgen). Postmenopausal women with osteoporosis were randomized 1:1 to 2 60-mg doses of GP2411 or REF-DMAb, one at study start and one at week 26. At week 52, the REF-DMAb group was re-randomized 1:1 to a third dose of REF-DMAb or switch to GP2411. The primary efficacy endpoint was percentage change from baseline (%CfB) in LS-BMD at week 52. Secondary efficacy endpoints were %CfB in LS-BMD, FN-BMD, and TH-BMD at weeks 26 and 78 (and week 52 for FN-BMD and TH-BMD). Primary PK and PD endpoints were the area under the serum concentration-time curve extrapolated to infinity and maximum drug serum concentration at week 26, and the area under the effect-time curve of the %CfB in serum CTX at week 26. Secondary PK and PD endpoints included drug serum concentrations and %CfB in serum CTX and P1NP during the study period. Similar efficacy was demonstrated at week 52, with 95% CIs of the difference in %CfB in LS-BMD between treatment groups fully contained within prespecified equivalence margins. Similarity in PK and PD was demonstrated at week 26. Immunogenicity was similar between groups and was not impacted by treatment switch. The rate of new vertebral fractures was comparable. Treatment-emergent adverse events were comparable between groups (63.6% [GP2411/GP2411]; 76.0% [REF-DMAb/REF-DMAb]; 76.6% [REF-DMAb/GP2411]). In conclusion, ROSALIA showed similar efficacy, PK and PD, and comparable safety and immunogenicity of GP2411 to REF-DMAb in postmenopausal osteoporosis.
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Affiliation(s)
- Sławomir Jeka
- Clinic and Department of Rheumatology and Systemic Diseases of Connective Tissue, University Hospital No. 2. Bydgoszcz, CM UMK, 85-168 Bydgoszcz, KP, Poland
| | - Eva Dokoupilová
- Medical Plus, s.r.o., 68601 Uherske Hradiste, ZL, Czech Republic
- Masaryk University, Faculty of Pharmacy, Department of Pharmaceutical Technology, 612 00 Brno, JM, Czech Republic
| | - Alan Kivitz
- Altoona Center for Clinical Research, Duncansville, PA 16635, United States
| | - Paweł Żuchowski
- Clinic and Department of Rheumatology and Systemic Diseases of Connective Tissue, University Hospital No. 2. Bydgoszcz, CM UMK, 85-168 Bydgoszcz, KP, Poland
| | - Barbara Vogg
- Clinical Development Biopharmaceuticals, Hexal AG, 83607 Holzkirchen, BY, Germany
| | - Natalia Krivtsova
- Clinical Development Biopharmaceuticals, Hexal AG, 83607 Holzkirchen, BY, Germany
| | - Susmit Sekhar
- Clinical Development Biopharmaceuticals, Hexal AG, 83607 Holzkirchen, BY, Germany
| | - Samik Banerjee
- Clinical Development Biopharmaceuticals, Hexal AG, 83607 Holzkirchen, BY, Germany
| | - Arnd Schwebig
- Clinical Development Biopharmaceuticals, Hexal AG, 83607 Holzkirchen, BY, Germany
| | - Johann Poetzl
- Clinical Development Biopharmaceuticals, Hexal AG, 83607 Holzkirchen, BY, Germany
| | - Jean-Jacques Body
- Department of Medicine, University Hospital Brugmann, Université Libre de Bruxelles (ULB), 1020 Brussels, BE, Belgium
| | - Richard Eastell
- Division of Clinical Medicine, University of Sheffield, Sheffield S10 2TN, SYK, United Kingdom
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Byun JH, Jeon HS, Yun HY, Kim JK. Validity conditions of approximations for a target-mediated drug disposition model: A novel first-order approximation and its comparison to other approximations. PLoS Comput Biol 2024; 20:e1012066. [PMID: 38656966 PMCID: PMC11090311 DOI: 10.1371/journal.pcbi.1012066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 05/13/2024] [Accepted: 04/10/2024] [Indexed: 04/26/2024] Open
Abstract
Target-mediated drug disposition (TMDD) is a phenomenon characterized by a drug's high-affinity binding to a target molecule, which significantly influences its pharmacokinetic profile within an organism. The comprehensive TMDD model delineates this interaction, yet it may become overly complex and computationally demanding in the absence of specific concentration data for the target or its complexes. Consequently, simplified TMDD models employing quasi-steady state approximations (QSSAs) have been introduced; however, the precise conditions under which these models yield accurate results require further elucidation. Here, we establish the validity of three simplified TMDD models: the Michaelis-Menten model reduced with the standard QSSA (mTMDD), the QSS model reduced with the total QSSA (qTMDD), and a first-order approximation of the total QSSA (pTMDD). Specifically, we find that mTMDD is applicable only when initial drug concentrations substantially exceed total target concentrations, while qTMDD can be used for all drug concentrations. Notably, pTMDD offers a simpler and faster alternative to qTMDD, with broader applicability than mTMDD. These findings are confirmed with antibody-drug conjugate real-world data. Our findings provide a framework for selecting appropriate simplified TMDD models while ensuring accuracy, potentially enhancing drug development and facilitating safer, more personalized treatments.
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Affiliation(s)
- Jong Hyuk Byun
- Department of Mathematics and Institute of Mathematical Science, Pusan National University, Busan, Republic of Korea
- Institute for Future Earth, Pusan National University, Busan, Republic of Korea
| | - Hye Seon Jeon
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - Hwi-yeol Yun
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
- Department of Bio-AI Convergence, Chungnam National University, Daejeon, Republic of Korea
| | - Jae Kyoung Kim
- Biomedical Mathematics Group, Pioneer Research Center for Mathematical and Computational Sciences, Institute for Basic Science, Daejeon, Republic of Korea
- Department of Mathematical Sciences, KAIST, Daejeon, Republic of Korea
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Vogg B, Poetzl J, El Galta R, Fuhr R, Schwebig A, Sekhar S. Pharmacokinetics and pharmacodynamics of the proposed biosimilar denosumab GP2411 and reference denosumab in healthy males. Expert Opin Biol Ther 2024; 24:91-100. [PMID: 38269652 DOI: 10.1080/14712598.2024.2308645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 01/18/2024] [Indexed: 01/26/2024]
Abstract
BACKGROUND This Phase I study compared the pharmacokinetic (PK) and pharmacodynamic (PD) similarity of GP2411 proposed denosumab biosimilar to reference denosumab (a monoclonal antibody for specific pro-resorptive conditions). RESEARCH DESIGN AND METHODS Healthy males (28-65 years, 50-90 kg) were randomized to a single sub-therapeutic subcutaneous injection of 35 mg GP2411, EU-Xgeva® or US-Xgeva®, and followed for 39 weeks. The primary endpoints were AUCinf, AUClast, and Cmax. RESULTS Four hundred ninety-two participants completed treatment. The 90% confidence intervals (CIs) (AUCinf, AUClast, and Cmax) and 95% CI of the geometric mean ratios of AUEC of % change from baseline in serum CTX were fully contained within the prespecified equivalence margins (0.80, 1.25), demonstrating similarity. The occurrence of treatment-emergent adverse events (TEAEs) with GP2411, EU-Xgeva® and US-Xgeva® was similar (72.9%, 76.0%, and 71.0% of participants, respectively). Most were Grade 1 or 2, <30% were treatment-related, and there was only one TEAE-related study discontinuation. Rates of positive anti-drug antibodies (ADAs) were similar (57.8%, 64.9%, and 69.1% of participants respectively), but immunogenicity was only borderline detectable and of very low magnitude. Ninety-nine percent of positive ADAs were transient. CONCLUSION GP2411 demonstrated similarity with EU-Xgeva® and US-Xgeva® in PK, PD, safety, and immunogenicity in this population. CLINICAL TRIAL REGISTRATION EudraCT 2019-001651-39.
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Affiliation(s)
- Barbara Vogg
- Clinical Development Biopharmaceuticals, Hexal AG, Holzkirchen, Germany
| | - Johann Poetzl
- Clinical Development Biopharmaceuticals, Hexal AG, Holzkirchen, Germany
| | - Rachid El Galta
- Clinical Development Biopharmaceuticals, Hexal AG, Holzkirchen, Germany
| | - Rainard Fuhr
- Principal Investigator Early Phase Clinical Unit, Parexel International GmbH, Berlin, Germany
| | - Arnd Schwebig
- Clinical Development Biopharmaceuticals, Hexal AG, Holzkirchen, Germany
| | - Susmit Sekhar
- Clinical Development Biopharmaceuticals, Hexal AG, Holzkirchen, Germany
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Kumar L, Arora MK, Marwah S. Biologic Antiresorptive: Denosumab. Indian J Orthop 2023; 57:127-134. [PMID: 38107799 PMCID: PMC10721778 DOI: 10.1007/s43465-023-01064-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 11/14/2023] [Indexed: 12/19/2023]
Abstract
Background Osteoporosis is an age-related common bone disorder characterized by low bone mineral density and increased fragility fracture risk. Various Antiresorptive medications are being used to target osteoclast mediated bone resorption to prevent bone loss and reduce fracture risk. About Denosumab Denosumab is a novel biological antiresorptive drug that belongs to the class of monoclonal antibodies. It binds to and inhibits the cytokine receptor activator of nuclear factor kappa-B ligand (RANKL), which is requisite for osteoclast differentiation, function and survival. Effectiveness Denosumab has been shown to be a potent and effective therapy for osteoporosis, with clinical trial data demonstrating significant improvement in bone mineral density (BMD) and reductions in fracture risk at various skeletal sites for more than 10 years of treatment. Safety Profile Denosumab has a favourable benefit/risk profile, with low rates of complications such as infection, atypical femoral fracture and osteonecrosis of the jawbone. Challenges However, denosumab treatment requires continuous administration, as discontinuation leads to rapid bone mineral loss and increased risk of multiple vertebral fractures due to rebound of bone turnover. Therefore, modification to another anti-osteoporosis drug therapy after denosumab discontinuation is required to maintain bone health. Conclusion Denosumab is a promising biological antiresorptive therapy for osteoporosis that offers high efficacy and safety, but also poses challenges for long-term management.
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Affiliation(s)
- Lalit Kumar
- Marengo Asia Hospital, Gurugram, Haryana India
| | | | - Sunil Marwah
- Marengo Asia Hospital, Gurugram, Haryana India
- Gurugram, India
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Li C, Liu H, Liao Y, Zhu Y, Tian J, Wang X, Hu Z, Zhan Y, Li X, Liang X, He J, Li Y, Shang D, Zheng Q, Wang T, Song H, Fang Y. Phase I, Randomized, Placebo-Controlled, Dose-Escalation Study of GB223, a Fully-Humanized Monoclonal Antibody to RANKL, in Healthy Chinese Adults. BioDrugs 2023; 37:721-735. [PMID: 37278972 DOI: 10.1007/s40259-023-00604-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/30/2023] [Indexed: 06/07/2023]
Abstract
BACKGROUND GB223 is a novel, fully-humanized monoclonal antibody against the receptor activator of nuclear factor-kappa B ligand (RANKL). In this phase I study, the safety, tolerability, pharmacokinetics, pharmacodynamics, and immunogenicity of GB223 were investigated. PATIENTS AND METHODS This was a randomized, double-blinded, placebo-controlled, single-dose escalation study conducted in 44 healthy Chinese adults. Participants were randomly assigned to receive a single subcutaneous injection dose of 7, 21, 63, 119, or 140 mg of GB223 (n = 34) or placebo (n = 10) and were followed up for 140-252 days. RESULTS The results of noncompartmental analysis showed that GB223 was slowly absorbed after dosing, with a time to reach maximum concentration (Tmax) ranging from 5 to 11 days. Serum GB223 concentrations decreased slowly, with a long half-life ranging from 7.91 to 19.60 days. A two-compartment Michaelis-Menten model was found to best describe the pharmacokinetics of GB223, and the absorption rate of GB223 differed between males (0.0146 h-1) and females (0.0081 h-1). Serum C-terminal telopeptide of type I collagen decreased significantly postdose, and the inhibition lasted 42-168 days. No deaths or drug-related serious adverse events occurred. The most frequent adverse events were blood parathyroid hormone increased (94.1%), blood phosphorus decreased (67.6%) and blood calcium decreased (58.8%). In the GB223 group, 44.1% (15/34) of subjects were antidrug antibody positive after dosing. CONCLUSION In this study, we demonstrated for the first time that a single subcutaneous injection of GB223, from 7 to 140 mg, is safe and well tolerated in healthy Chinese subjects. GB223 has a nonlinear pharmacokinetic profile, and sex was a potential covariate that may affect the absorption rate of GB223. CLINICAL TRIAL REGISTRATION NCT04178044 and ChiCTR1800020338.
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Affiliation(s)
- Chen Li
- Department of Pharmacy, Key Laboratory of Biological Targeting Diagnosis, Therapy and Rehabilitation of Guangdong Higher Education Institutes, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Phase I Clinical Research Center, Key Laboratory of Biological Targeting Diagnosis, Therapy and Rehabilitation of Guangdong Higher Education Institutes, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Haiyan Liu
- Phase I Clinical Research Center, Key Laboratory of Biological Targeting Diagnosis, Therapy and Rehabilitation of Guangdong Higher Education Institutes, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yixiang Liao
- Phase I Clinical Research Center, Key Laboratory of Biological Targeting Diagnosis, Therapy and Rehabilitation of Guangdong Higher Education Institutes, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yu Zhu
- Department of Pharmacy, Key Laboratory of Biological Targeting Diagnosis, Therapy and Rehabilitation of Guangdong Higher Education Institutes, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jingyuan Tian
- Department of Pharmacy, Key Laboratory of Biological Targeting Diagnosis, Therapy and Rehabilitation of Guangdong Higher Education Institutes, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xuan Wang
- Phase I Clinical Research Center, Key Laboratory of Biological Targeting Diagnosis, Therapy and Rehabilitation of Guangdong Higher Education Institutes, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhiqin Hu
- Department of Pharmacy, Key Laboratory of Biological Targeting Diagnosis, Therapy and Rehabilitation of Guangdong Higher Education Institutes, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yaoxuan Zhan
- Phase I Clinical Research Center, Key Laboratory of Biological Targeting Diagnosis, Therapy and Rehabilitation of Guangdong Higher Education Institutes, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xianbo Li
- Phase I Clinical Research Center, Key Laboratory of Biological Targeting Diagnosis, Therapy and Rehabilitation of Guangdong Higher Education Institutes, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xintong Liang
- Department of Pharmacy, Key Laboratory of Biological Targeting Diagnosis, Therapy and Rehabilitation of Guangdong Higher Education Institutes, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jin He
- Department of Pharmacy, Key Laboratory of Biological Targeting Diagnosis, Therapy and Rehabilitation of Guangdong Higher Education Institutes, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yongmei Li
- Department of Pharmacy, Key Laboratory of Biological Targeting Diagnosis, Therapy and Rehabilitation of Guangdong Higher Education Institutes, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Dewei Shang
- Department of Pharmacy, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
| | - Qingshan Zheng
- Center for Drug Clinical Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Tenghua Wang
- Department of Pharmacy, Key Laboratory of Biological Targeting Diagnosis, Therapy and Rehabilitation of Guangdong Higher Education Institutes, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
| | - Haifeng Song
- Department of Pharmacology and Toxicology, Beijing Institute of Radiation Medicine, Beijing, China.
| | - Yi Fang
- Clinical Trial Institution Research Ward, Peking University People's Hospital, Beijing, China.
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Okuno F, Ito-Masui A, Hane A, Maeyama K, Ikejiri K, Ishikura K, Yanagisawa M, Dohi K, Suzuki K. Severe hypocalcemia after denosumab treatment leading to refractory ventricular tachycardia and veno-arterial extracorporeal membrane oxygenation support: a case report. Int J Emerg Med 2023; 16:52. [PMID: 37635211 PMCID: PMC10463425 DOI: 10.1186/s12245-023-00529-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 08/20/2023] [Indexed: 08/29/2023] Open
Abstract
BACKGROUND Severe hypocalcemia may lead to life-threatening arrhythmias. Denosumab is an effective treatment for osteoporosis that allows long intervals between doses. However, there is a risk of hypocalcemia in some patients. Due to the long half-life of denosumab, emergency physicians caring for patients presenting with symptoms of hypocalcemia may not be aware of the medication, and adverse effects may last longer. CASE PRESENTATION A 55-year-old woman with a history of systemic lupus erythematosus (SLE) and anxiety disorder called for an ambulance for symptoms of hyperventilation and muscle cramps. After evaluation at the local hospital, she developed pulseless ventricular tachycardia and was resuscitated by defibrillation by the hospital staff. After conversion to sinus rhythm, she was transported to a tertiary center. Upon arrival, pulseless ventricular tachycardia occurred again, and veno-arterial extracorporeal membrane oxygenation (ECMO) and intra-aortic balloon pumping (IABP) were implemented. Laboratory results showed severe hypocalcemia (corrected calcium level of 5.3 mg/dL) whereupon intravenous calcium supplementation was started. She had received the first dose of denosumab (60 mg) by subcutaneous injection 24 days prior to hospitalization. She was eventually weaned from ECMO and IABP support. CONCLUSION Cardiac arrest due to hypocalcemia is relatively rare but can be fatal. In the present case, hyperventilation may have acutely exacerbated pre-existing hypocalcemia, leading to ventricular tachycardia. The patient had a slightly decreased serum calcium level prior to denosumab. Close monitoring may be preferable after the primary dose of denosumab in selected patients. Emergency physicians caring for patients who may be suffering from symptoms/signs of hypocalcemia must be mindful of medications that have long half-lives and affect electrolyte balance when treating fatal arrhythmia due to hypocalcemia.
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Affiliation(s)
- Fumito Okuno
- Emergency and Critical Care Center, Mie University Hospital, 2-174 Edobashi, Tsu-City, Mie, 514-8507, Japan
| | - Asami Ito-Masui
- Emergency and Critical Care Center, Mie University Hospital, 2-174 Edobashi, Tsu-City, Mie, 514-8507, Japan.
| | - Atsuya Hane
- Emergency and Critical Care Center, Mie University Hospital, 2-174 Edobashi, Tsu-City, Mie, 514-8507, Japan
| | - Keiko Maeyama
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu-City, Mie, 514-8507, Japan
| | - Kaoru Ikejiri
- Emergency and Critical Care Center, Mie University Hospital, 2-174 Edobashi, Tsu-City, Mie, 514-8507, Japan
| | - Ken Ishikura
- Emergency and Critical Care Center, Mie University Hospital, 2-174 Edobashi, Tsu-City, Mie, 514-8507, Japan
| | - Masashi Yanagisawa
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu-City, Mie, 514-8507, Japan
| | - Kaoru Dohi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu-City, Mie, 514-8507, Japan
| | - Kei Suzuki
- Emergency and Critical Care Center, Mie University Hospital, 2-174 Edobashi, Tsu-City, Mie, 514-8507, Japan
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11
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Landi L, Leali PT, Barbato L, Carrassi AM, Discepoli N, Muti PCM, Oteri G, Rigoni M, Romanini E, Ruggiero C, Tarantino U, Varoni E, Sforza NM, Brandi ML. Anti-resorptive therapy in the osteometabolic patient affected by periodontitis. A joint position paper of the Italian Society of Orthopaedics and Traumatology (SIOT) and the Italian Society of Periodontology and Implantology (SIdP). J Orthop Traumatol 2023; 24:36. [PMID: 37453950 DOI: 10.1186/s10195-023-00713-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 06/02/2023] [Indexed: 07/18/2023] Open
Abstract
This joint report from the Italian Society of Orthopaedics and Traumatology (SIOT) and the Italian Society of Periodontology and Implantology (SIdP) aims for a consensus around the scientific rationale and clinical strategy for the management of osteoporotic patients affected by periodontitis who are undergoing anti-resorptive (AR) therapy to manage the risk of the occurrence of a medication-related osteonecrosis of the jaws (MRONJ). Osteoporosis and periodontitis are chronic diseases with a high prevalence in aging patients, and they share some of the same pathogenetic mechanisms based upon inflammation. Available evidence shows the relationship among osteoporosis, AR agents, periodontitis and implant therapy in relation to the incidence of MRONJ. Uncontrolled periodontitis may lead to tooth loss and to the need to replace teeth with dental implants. Tooth extraction and surgical dental procedures are recognized as the main risk factors for developing MRONJ in individuals taking AR therapy for osteometabolic conditions. Although the incidence of MRONJ in osteometabolic patients taking AR therapy may be as low as 0.9%, the increasing prevalence of osteoporosis and the high prevalence of periodontitis suggest that this potential complication should not be overlooked. Good clinical practice (GCP) guidelines are proposed that aim at a more integrated approach (prescriber, dentist, periodontist and dental hygienist) in the management of periodontitis patients undergoing AR therapy for osteometabolic disorders to reduce the risk of MRONJ. Dental professional and prescribers should educate patients regarding the potential risk associated with the long-term use of AR therapy and oral health behavior.
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Affiliation(s)
- L Landi
- SIdP Panel, Via della Balduina 114, 00136, Rome, Italy.
- Private Practice Verona and Roma, Verona, Italy.
| | - P Tranquilli Leali
- SIOT Panel, Rome, Italy
- Department of Orthopedic Diseases, University of Sassari, Sassari, Italy
| | - L Barbato
- SIdP Panel, Via della Balduina 114, 00136, Rome, Italy
- Department of Experimental and Clinical Medicine, Research Unit in Periodontology and Periodontal Medicine, University of Florence, Florence, Italy
| | - A M Carrassi
- SIdP Panel, Via della Balduina 114, 00136, Rome, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy
| | - N Discepoli
- SIdP Panel, Via della Balduina 114, 00136, Rome, Italy
- Department of Medical Biotechnologies, Unit of Periodontology, University of Siena, Siena, Italy
| | - P C M Muti
- SIdP Panel, Via della Balduina 114, 00136, Rome, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy
- Maxillo-Facial Surgery and Dental Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - G Oteri
- SIdP Panel, Via della Balduina 114, 00136, Rome, Italy
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - M Rigoni
- SIOT Panel, Rome, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy
| | - E Romanini
- SIOT Panel, Rome, Italy
- RomaPro, Polo Sanitario San Feliciano, Rome, Italy
| | - C Ruggiero
- SIOT Panel, Rome, Italy
- Department of Medicine and Surgery, Gerontology and Geriatric Section, University of Perugia, Perugia, Italy
| | - U Tarantino
- SIOT Panel, Rome, Italy
- Department of Clinical Sciences and Translational Medicine, "Tor Vergata" University of Rome, Rome, Italy
| | - E Varoni
- SIdP Panel, Via della Balduina 114, 00136, Rome, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy
| | - N M Sforza
- SIdP Panel, Via della Balduina 114, 00136, Rome, Italy
- Private Practice Bologna, Bologna, Italy
| | - M L Brandi
- SIOT Panel, Rome, Italy.
- Osservatorio Fratture da Fragilità, Via San Gallo 123, 50100, Florence, Italy.
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12
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Lin Y, Yang H, Yang X, Guo C, Yang S, Yang G, Wu Q, Pan C, Sun C, Li C, He L, Huang J, Pei Q. Biosimilarity of HS-20090 to Denosumab in healthy Chinese subjects: a randomized, double-blinded, pharmacokinetics/pharmacodynamics study. Expert Opin Investig Drugs 2022; 31:1125-1132. [DOI: 10.1080/13543784.2022.2123737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Yaqi Lin
- Center of Clinical Pharmacology, the Third Xiangya Hospital, Central South University, Changsha, China
- Department of Pharmacy, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Heng Yang
- Department of Neurology, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoyan Yang
- Center of Clinical Pharmacology, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Can Guo
- Center of Clinical Pharmacology, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Shuang Yang
- Center of Clinical Pharmacology, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Guoping Yang
- Center of Clinical Pharmacology, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Qiong Wu
- Department of Hansoh Medical Development Group, Hansoh Pharmaceutical Group Co. Ltd, Shanghai, China
| | - Chao Pan
- Department of Hansoh Medical Development Group, Hansoh Pharmaceutical Group Co. Ltd, Shanghai, China
| | - Changan Sun
- Department of Hansoh Medical Development Group, Hansoh Pharmaceutical Group Co. Ltd, Shanghai, China
| | - Chuan Li
- Department of Hansoh Medical Development Group, Hansoh Pharmaceutical Group Co. Ltd, Shanghai, China
| | - Liangliang He
- Department of Hansoh Medical Development Group, Hansoh Pharmaceutical Group Co. Ltd, Shanghai, China
| | - Jie Huang
- Center of Clinical Pharmacology, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Qi Pei
- Department of Pharmacy, the Third Xiangya Hospital, Central South University, Changsha, China
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13
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Özer T, Başlarlı Ö, Aktaş A, Barış E, Ocak M. Effect of Locally Administered Denosumab on Bone Graft Healing in Rabbit Critical-Size Calvarial Defects. Indian J Orthop 2022; 56:1424-1430. [PMID: 35928658 PMCID: PMC9283553 DOI: 10.1007/s43465-022-00673-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 05/27/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND/AIM Denosumab is a human monoclonal immunoglobulin G2 antibody developed from the ovarian cells of Chinese hamsters. We aimed to histomorphometrically and radiologically evaluate the effects of xenografts used with local denosumab on the healing of defect sites using rabbit skulls. MATERIALS AND METHODS Two 10-mm diameter critical-size defects were created in 16 rabbits. The defect areas were filled with xenografts and xenograft + 3 mg denosumab in the control and denosumab groups (DEN), respectively. We evaluated new bone, residual graft, soft tissue areas, and bone volume in 4- and 8-week study groups. RESULTS Histomorphometrically, there were no statistically significant differences between groups at both 4 and 8 weeks regarding residual graft, new bone, and soft tissue area (p > 0.05). The 4-week residual graft control group values were significantly higher than the 8-week values (p < 0.05). The soft tissue area was significantly greater in the 4-week compared with the 8-week DEN group (p < 0.05). The radiologically measured total bone volume was significantly greater in the 8-week specimens than in the 4-week specimens (p < 0.05). CONCLUSION In this study, denosumab used locally with bone grafts, showed no direct effect on new and total bone volume.
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Affiliation(s)
- Taha Özer
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hacettepe University, Ankara, Turkey
| | - Özgür Başlarlı
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hacettepe University, Ankara, Turkey
| | - Alper Aktaş
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hacettepe University, Ankara, Turkey
| | - Emre Barış
- Department of Oral Pathology, Faculty of Dentistry, Gazi University, Ankara, Turkey
| | - Mert Ocak
- Vocational School of Health, Ankara University, Ankara, Turkey
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14
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Dupont J, Appermans W, Dejaeger M, Wauters I, Laurent MR, Gielen E. Rebound-associated vertebral fractures after denosumab discontinuation in a lung cancer patient with bone metastases. Bone Rep 2022; 16:101582. [PMID: 35585959 PMCID: PMC9109183 DOI: 10.1016/j.bonr.2022.101582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 04/29/2022] [Accepted: 05/02/2022] [Indexed: 11/16/2022] Open
Abstract
Denosumab is a commonly used antiresorptive treatment in patients with osteoporosis or solid tumours with bone metastases. Upon denosumab discontinuation, a rebound phenomenon can occur that results in an increased (vertebral) fracture risk. This phenomenon is well-known in the setting of osteoporosis but rarely reported in cancer patients with bone metastases discontinuing denosumab. We present the case of a 43-year old women with lung cancer and bone metastases who suffered multiple vertebral fractures after discontinuation of denosumab.
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15
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Bender C, Eichling S, Franzen L, Herzog V, Ickenstein LM, Jere D, Nonis L, Schwach G, Stoll P, Venczel M, Zenk S. Evaluation of in vitro tools to predict the in vivo absorption of biopharmaceuticals following subcutaneous administration. J Pharm Sci 2022; 111:2514-2524. [DOI: 10.1016/j.xphs.2022.04.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 04/07/2022] [Accepted: 04/07/2022] [Indexed: 11/17/2022]
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16
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Drug Treatment of Low Bone Mass and Other Bone Conditions in Pediatric Patients. Paediatr Drugs 2022; 24:103-119. [PMID: 35013997 DOI: 10.1007/s40272-021-00487-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/01/2021] [Indexed: 10/19/2022]
Abstract
Osteoporosis may affect young individuals, albeit infrequently. In childhood, bone mass increases, reaching its peak between the second and third decades; then, after a period of stability, it gradually declines. Several conditions, including genetic disorders, chronic diseases, and some medications, can have an impact on bone homeostasis. Diagnosis in young patients is based on the criteria defined by the International Society for Clinical Densitometry (ISCD), published in 2013. High risk factors should be identified and monitored. Often simple interventions aimed to eliminate the underlying cause, to minimize the negative bone effects linked to drugs, or to increase calcium and vitamin D intake can protect bone mass. However, in selected cases, pharmacological treatment should be considered. Bisphosphonates remain the main therapeutic agent for children with significant skeletal fragility and are also useful in a large number of other bone conditions. Denosumab, an anti-RANKL antibody, could become a potential alternative treatment. Clinical trials to evaluate the long-term effects and safety of denosumab in children are ongoing.
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17
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Chen H, Chen W, Yuan F, Guo Q, Zhang X, Wang C, Li X. Pharmacokinetics, Pharmacodynamics, Safety and Immunogenicity of CMAB807, a New Denosumab Biosimilar, in Healthy Chinese Subjects. Front Pharmacol 2022; 13:821944. [PMID: 35140619 PMCID: PMC8819684 DOI: 10.3389/fphar.2022.821944] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 01/04/2022] [Indexed: 01/07/2023] Open
Abstract
Objective: Pharmacokinetics (PK), pharmacodynamics (PD), safety and immunogenicity studies were conducted to evaluate the bioequivalence of CMAB807, a biosimilar to denosumab (Prolia®), which is the only approved RANKL inhibitor for the treatment of osteoporosis. Methods: In this randomized, double-blind, single-dose phase I study, 132 healthy Chinese male subjects received a subcutaneous injection of 60 mg of CMAB807 or denosumab at a 1:1 ratio. The PK, PD, safety and immunogenicity results were assessed prior to and up to 126 days after administration. Results: The PK profiles of CMAB807 and denosumab were similar. The geometric mean ratios of the maximum concentration (Cmax), AUC0-t and AUCo-∞ were 102.41, 104.15 and 103.89%, respectively, and the 90% confidence interval was observed to be within 80.00–125.00%, which indicated the bioequivalence of CMAB807 and denosumab. The PD profiles of the two groups were also comparable. The production of the C-terminal cross-linking telopeptide of type I collagen (CTX1) was inhibited by up to 85% for 10 days, and this inhibition was sustained for up to 126 days in both the CMAB807 and denosumab groups. No subjects in the CMAB807 group, three subjects in the denosumab group before administration, and two subjects in the denosumab group after administration were positive for anti-drug antibody (ADA). Adverse events (AEs) were observed in 98.5% of subjects in both groups. The most common AE recorded was increased parathyroid hormone (PTH) levels, with incidences of 92.4 and 95.5% in the CMAB807 and denosumab groups, respectively. No clinically meaningful differences were observed in safety and immunogenicity between CMAB807 and denosumab. Conclusion: CMAB807 represents a new potential treatment option for patients with osteoporosis. Clinical Trial Registration:https://clinicaltrials.gov (Registration No. NCT03925051), http://www.chinadrugtrial/org.cn/index.html (Registration No. CTR20190800).
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Affiliation(s)
- Hanjing Chen
- Department of Clinical Pharmacology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Weili Chen
- Department of Clinical Pharmacology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Fei Yuan
- Department of Clinical Pharmacology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Qingcheng Guo
- Taizhou Mabtech Pharmaceuticals Co., Ltd, Taizhou, China
| | - Xunmin Zhang
- Taizhou Mabtech Pharmaceuticals Co., Ltd, Taizhou, China
| | - Chenguang Wang
- Taizhou Mabtech Pharmaceuticals Co., Ltd, Taizhou, China
| | - Xuening Li
- Department of Clinical Pharmacology, Zhongshan Hospital, Fudan University, Shanghai, China
- *Correspondence: Xuening Li,
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18
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Woźniczka M, Błaszczak-Świątkiewicz K. New Generation of Meso and Antiprogestins (SPRMs) into the Osteoporosis Approach. Molecules 2021; 26:6491. [PMID: 34770897 PMCID: PMC8588216 DOI: 10.3390/molecules26216491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 10/04/2021] [Accepted: 10/19/2021] [Indexed: 01/09/2023] Open
Abstract
Receptor activator of nuclear factor κB (RANK) and its ligand (RANKL) play key roles in bone metabolism and the immune system. The RANK/RANKL complex has also been shown to be critical in the formation of mammary epithelia cells. The female hormones estradiol and progesterone closely control the action of RANKL with RANK. Blood concentration of these sex hormones in the postmenopausal period leads to an increase in RANK/RANKL signaling and are a major cause of women's osteoporosis, characterized by altered bone mineralization. Knowledge of the biochemical relationships between hormones and RANK/RANKL signaling provides the opportunity to design novel therapeutic agents to inhibit bone loss, based on the anti-RANKL treatment and inhibition of its interaction with the RANK receptor. The new generation of both anti- and mesoprogestins that inhibit the NF-κB-cyclin D1 axis and blocks the binding of RANKL to RANK can be considered as a potential source of new RANK receptor ligands with anti-RANKL function, which may provide a new perspective into osteoporosis treatment itself as well as limit the osteoporosis rise during breast cancer metastasis to the bone.
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Affiliation(s)
| | - Katarzyna Błaszczak-Świątkiewicz
- Department of Physical and Biocoordination Chemistry, Faculty of Pharmacy, Medical University of Lodz, Muszyńskiego 1, 90-151 Lodz, Poland;
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19
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Zheng F, Hou P, Corpstein CD, Park K, Li T. Multiscale pharmacokinetic modeling of systemic exposure of subcutaneously injected biotherapeutics. J Control Release 2021; 337:407-416. [PMID: 34324897 DOI: 10.1016/j.jconrel.2021.07.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 06/19/2021] [Accepted: 07/24/2021] [Indexed: 12/19/2022]
Abstract
Subcutaneously injected formulations have been developed for many biological products including monoclonal antibodies (mAbs). A knowledge gap nonetheless remains regarding the absorption and catabolism mechanisms and kinetics of a large molecule at the administration site. A multiscale pharmacokinetic (PK) model was thus developed by coupling multiphysics simulations of subcutaneous (SC) absorption kinetics with whole-body pharmacokinetic (PK) modeling, bridged by consideration of the presystemic clearance by the initial lymph. Our local absorption simulation of SC-injected albumin enabled the estimation of its presystemic clearance and led to the whole-body PK modeling of systemic exposure. The local absorption rate of albumin was found to be influential on the PK profile. Additionally, nineteen mAbs were explored via this multiscale simulation and modeling framework. The computational results suggest that stability propensities of the mAbs are correlated with the presystemic clearance, and electrostatic charges in the complementarity-determining region influence the local absorption rate. Still, this study underscores a critical need to experimentally determine various biophysical characteristics of a large molecule and the biomechanical properties of human skin tissues.
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Affiliation(s)
- Fudan Zheng
- Industrial & Physical Pharmacy, Purdue University West Lafayette, Indiana, USA
| | - Peng Hou
- Industrial & Physical Pharmacy, Purdue University West Lafayette, Indiana, USA
| | | | - Kinam Park
- Industrial & Physical Pharmacy, Purdue University West Lafayette, Indiana, USA
| | - Tonglei Li
- Industrial & Physical Pharmacy, Purdue University West Lafayette, Indiana, USA.
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20
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Campisi G, Mauceri R, Bertoldo F, Fusco V, Bedogni A. A pragmatic window of opportunity to minimise the risk of MRONJ development in individuals with osteoporosis on Denosumab therapy: a hypothesis. Head Face Med 2021; 17:25. [PMID: 34243807 PMCID: PMC8268308 DOI: 10.1186/s13005-021-00280-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 07/01/2021] [Indexed: 11/10/2022] Open
Abstract
Denosumab is associated with the development of medication-related osteonecrosis of the jaw (MRONJ), an uncommon but severe oral side effect with a higher prevalence in metastatic cancer patients than in patients with metabolic bone fragility. Although several oral triggers can initiate MRONJ, invasive oral treatments and tooth extraction still remain the most common precipitating event. In general, tooth extraction and oral surgery should be avoided in patients at increased risk of MRONJ, while extraction of non-restorable teeth should be performed based on specific risk reduction protocols to eliminate dental/periodontal infections, still protecting from MRONJ onset. Based on the different pharmacological activity of denosumab and nitrogen-containing bisphosphonates, it is likely that the MRONJ risk profile of patients with osteoporosis could somewhat vary. We hypothesize the chance to maximize the pharmacokinetic of denosumab 60 mg (Prolia®) and identify a time interval in which invasive oral treatments can ideally take place without restrictions in patients with metabolic bone fragility, We propose that dental surgery (e.g. tooth extraction) may be safely performed without additional intra or peri-operative procedures in osteoporosis patients using denosumab provided that careful case selection, adequate communication among specialists, planning of a delayed dosing window (1-month deferral) and rigorous postoperative follow-up are granted.
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Affiliation(s)
- Giuseppina Campisi
- Department of Surgical, Oncological, and Oral Sciences, University of Palermo, Palermo, Italy
| | - Rodolfo Mauceri
- Department of Surgical, Oncological, and Oral Sciences, University of Palermo, Palermo, Italy.
- Department of Biomedical and Dental Sciences, Morphological and Functional Images, University of Messina, Messina, Italy.
| | | | - Vittorio Fusco
- Oncology Unit, Azienda Ospedaliera di Alessandria SS, Antonio e Biagio e Cesare Arrigo, Alessandria, Italy
| | - Alberto Bedogni
- Regional Center for Prevention, Diagnosis and Treatment of Medication and Radiation-Related Bone Diseases of the Head and Neck, University of Padua, Padua, Italy
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21
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Pan KS, Boyce AM. Denosumab Treatment for Giant Cell Tumors, Aneurysmal Bone Cysts, and Fibrous Dysplasia-Risks and Benefits. Curr Osteoporos Rep 2021; 19:141-150. [PMID: 33616817 PMCID: PMC9533232 DOI: 10.1007/s11914-021-00657-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/19/2021] [Indexed: 12/21/2022]
Abstract
PURPOSE OF REVIEW This review summarizes current understanding of the role of denosumab, an inhibitor of receptor activator of nuclear kappa-B ligand (RANKL), in the management of 3 skeletal neoplasms: giant cell tumors, aneurysmal bone cysts, and fibrous dysplasia. RECENT FINDINGS A growing body of literature supports denosumab use in giant cell tumors, a neoplasm in which RANKL plays a clear pathogenic role. Comparatively less data is available in aneurysmal bone cysts and fibrous dysplasia; however, the pathogenic similarity of these disorders to giant cell tumors, as well as encouraging preliminary data, suggests denosumab may be useful. Denosumab's inhibitory effects on bone turnover are fully reversible after drug discontinuation. This raises important unanswered questions for clinical management, including potential risks of tumor recurrence and bone turnover rebound. Denosumab is a promising potential treatment for skeletal neoplasms. However, its clinical use is impacted by ongoing safety concerns related to postdiscontinuation rebound, particularly in children. There is a critical need to understand denosumab treatment and discontinuation effects on tumor recurrence and to develop strategies for long-term treatment in patients who cannot be managed surgically.
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Affiliation(s)
- Kristen S Pan
- Skeletal Disorders and Mineral Homeostasis Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Building 30 Room 228 MSC 4320, Bethesda, MD, 20892, USA
- Department of Plastic and Reconstructive Surgery, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - Alison M Boyce
- Skeletal Disorders and Mineral Homeostasis Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Building 30 Room 228 MSC 4320, Bethesda, MD, 20892, USA.
- Metabolic Bone Disorders Unit, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, USA.
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22
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Hiramatsu R, Ubara Y, Sawa N, Sakai A. Hypocalcemia and bone mineral changes in hemodialysis patients with low bone mass treated with denosumab: a 2-year observational study. Nephrol Dial Transplant 2021; 36:1900-1907. [PMID: 33544866 DOI: 10.1093/ndt/gfaa359] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Increases in bone mineral density (BMD) following a single dose of denosumab and increased incidence of denosumab-associated acute hypocalcemia (DAAH) have been reported in chronic kidney disease (CKD) patients. Little is known about clinical risk factors related to DAAH and the long-term effect of denosumab on BMD in hemodialysis patients. METHODS An observational non-controlled study involving 47 hemodialysis patients was conducted to determine the independent risk factors related to percent changes in serum Ca levels associated with denosumab using multivariate regression analysis. Optimal predictive markers for DAAH were explored by receiver operating characteristic (ROC) analysis. Percent changes of BMD at the lumbar spine (LS) and femoral neck (FN) over 24 months were investigated. RESULTS The incidence of DAAH (serum corrected Ca (cCa) ≤ 8 mg/dL) following denosumab was 25.5%. Multivariate regression analysis showed baseline bone alkaline phosphatase (BAP) was independently related to percent changes in cCa levels (β = -0.407, P = 0.008). Tartrate-resistant acid phosphatase (TRACP-5b) was found to be the most accurate marker to predict DAAH with AUC of 0.750 (95% CI; 0.546-0.954, P = 0.02) and the optimal cut-off level was 670 mU/mL with sensitivity; 0.727 and specificity; 0.733. BMD significantly increased by 5.9 ± 1.7% (P = 0.01) at LS and 4.2 ± 1.5% (P = 0.04) at FN at 24 months. CONCLUSION In hemodialysis patients, high bone turnover was an independent risk factor for the Ca declines induced by denosumab. Denosumab significantly increased BMD at LS and FN over 24 months.
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Affiliation(s)
- Rikako Hiramatsu
- Nephrology Centre, Toranomon Hospital, Tokyo, Japan.,Department of Orthopedic Surgery, University of Occupational and Environmental Health, Japan
| | | | - Naoki Sawa
- Nephrology Centre, Toranomon Hospital, Tokyo, Japan
| | - Akinori Sakai
- Department of Orthopedic Surgery, University of Occupational and Environmental Health, Japan
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Rossini A, Frigerio S, Dozio E, Trevisan R, Perseghin G, Corbetta S. Effect of Denosumab on Glucose Homeostasis in Postmenopausal Women with Breast Cancer Treated with Aromatase Inhibitors: A Pilot Study. Int J Endocrinol 2020; 2020:1809150. [PMID: 33204260 PMCID: PMC7666635 DOI: 10.1155/2020/1809150] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/20/2020] [Accepted: 10/24/2020] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Aromatase inhibitors in women with breast cancer have been associated with cancer treatment-induced bone loss (CTIBL), increased fracture risk, and impairment of glucose metabolism. Denosumab (Dmab), a monoclonal antibody against RANKL, which is a key regulator of the osteoclast activity, is effective as an antiresorptive agent in the treatment of CTIBL. Since RANKL/RANK pathway may contribute to the pathogenesis of glucometabolic disorders, it has been suggested that Dmab may improve glucose homeostasis. Our pilot study evaluated the effect of a single administration of 60 mg Dmab on glucose metabolism in a cohort of women with breast cancer treated with aromatase inhibitors. METHODS Fifteen postmenopausal nondiabetic women were prospectively enrolled. Oral glucose tolerance test (OGTT) and metabolic parameters, including FGF21, were assessed at baseline and one month after Dmab injection. Midterm glucose control was evaluated by measuring glycated haemoglobin (HbA1c) levels 5 months after Dmab. RESULTS Parameters of glucose metabolism were not different one month after Dmab but circulating FGF21 levels significantly decreased (128.5 ± 46.8 versus 100.2 ± 48.8 pg/mL; p=0.016). Considering patients with insulin resistance at baseline (HOMA-IR > 2.5 and Matsuda Index < 2.5; n = 5), reduced mean fasting insulin levels (16.3 ± 4.9 versus 13.5 ± 3.5 mcU/mL; p=0.029) and increased insulin sensitivity index QUICKI (0.317 ± 0.013 versus 0.327 ± 0.009; p=0.025) were found. Nonetheless, HbA1c increased 5 months after Dmab (36.0 ± 2.3 versus 39.6 ± 3.1 mmol/mol; p=0.01). CONCLUSIONS Although RANKL blockade induced a short-term positive effect on insulin sensitivity, particularly in insulin-resistant patients, a benefit on long-term glucose metabolism was not evident. In conclusion, Dmab is safe for glucose metabolism in aromatase inhibitor-treated women with breast cancer.
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Affiliation(s)
- Alessandro Rossini
- Endocrinology and Diabetes Unit, ASST Papa Giovanni XXIII, Bergamo 24127, Italy
| | - Sofia Frigerio
- Endocrinology Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan 20122, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan 20122, Italy
| | - Elena Dozio
- Department of Biomedical Sciences for Health, University of Milan, Milan 20122, Italy
| | - Roberto Trevisan
- Endocrinology and Diabetes Unit, ASST Papa Giovanni XXIII, Bergamo 24127, Italy
- Department of Medicine and Surgery, Università Degli Studi di Milano-Bicocca, Monza 20900, Italy
| | - Gianluca Perseghin
- Department of Medicine and Surgery, Università Degli Studi di Milano-Bicocca, Monza 20900, Italy
- Department of Medicine and Rehabilitation, Policlinico Monza, Monza 20900, Italy
| | - Sabrina Corbetta
- Endocrinology and Diabetology Service, IRCCS Istituto Ortopedico Galeazzi, Milan 20161, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan 20122, Italy
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Chiarito M, Brunetti G, D'Amato G, Faienza MF. Monitoring and maintaining bone health in patients with Turner syndrome. Expert Rev Endocrinol Metab 2020; 15:431-438. [PMID: 33074770 DOI: 10.1080/17446651.2020.1834846] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 10/07/2020] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Subjects affected with Turner Syndrome (TS) suffer low bone mineral density and high risk of fracture from a young age. Estrogen deficiency is considered the main risk factor but other factors, such as intrinsic bone abnormalities, enhanced osteoclastogenesis, vitamin D deficiency and other comorbidities may contribute to the exalted bone fragility. AREAS COVERED The authors performed a literature search in PubMed and EMBASE, using selected key words. They focused their search on pathogenetic mechanisms of osteoporosis in TS and updated the diagnosis, prevention and therapeutic interventions. EXPERT OPINION Bone health is a concern in subjects with TS, and strategies to prevent osteoporosis and fractures should be considered from childhood. Advice on how to live a healthy lifestyle, including physical activity and correct nutrition, should be given during childhood in order to prevent bone impairment later in life. The screening for vitamin D deficiency should be performed between the ages of 9 and 11, and every 2-3 years thereafter. Early initiation of estrogen replacement therapy (ERT) between 11-12 years of age, prompt titration to the adult dose after 2 years, and long-term follow-up to guarantee compliance with ERT, are the key points of osteoporosis prevention in women with TS.
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Affiliation(s)
- Mariangela Chiarito
- Department of Biomedical Sciences and Human Oncology, University "A.Moro" , Bari, Italy
| | - Giacomina Brunetti
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, Section of Human Anatomy and Histology, University "A. Moro" , Bari, Italy
| | - Gabriele D'Amato
- Department of Women's and Children's Health, ASL Bari, Neonatal Intensive Care Unit, Di Venere Hospital , Bari, Italy
| | - Maria Felicia Faienza
- Department of Biomedical Sciences and Human Oncology, University "A.Moro" , Bari, Italy
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Zhang H, Wu M, Zhu X, Li C, Li X, Sun J, Liu C, Liu Q, Wei W, Niu J, Ding Y. A Phase I, Randomized, Single-Dose Study to Evaluate the Biosimilarity of QL1206 to Denosumab Among Chinese Healthy Subjects. Front Pharmacol 2020; 11:01329. [PMID: 33132906 PMCID: PMC7580200 DOI: 10.3389/fphar.2020.01329] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 08/10/2020] [Indexed: 12/27/2022] Open
Abstract
Objective This study was conducted to explore the tolerance, variability, pharmacokinetics (PK), and pharmacodynamics (PD) of denosumab biosimilar (QL1206) in healthy Chinese subjects. Methods This is a randomized, double-blind, two-arm, parallel study performed to examine the bioequivalence of denosumab biosimilar, QL1206, with that of Xgeva® (Denosumab) as a reference drug. A single dose of 120 mg/kg of the denosumab biosimilar or Xgeva® was administered to the subjects, who were followed up for 134 days. Results Similar PK properties as those of Xgeva® were exhibited by QL1206. When compared to QL1206 with Xgeva®, the 90% confidence intervals of the ratios for Cmax, AUC0-t, and AUC0-∞ were observed to be within 80-125%. The inter-subject variability (inter-CV) ranged from 29% to 39.5%. Six and three subjects in the QL1206 and Xgeva® groups were found to be positive for the ADA and negative for the NAb, respectively. The CTX1 concentration-time profiles appeared similar (about 80% decrease from 48 hours to134 days) between the QL1206 and Xgeva® groups. Adverse events (AEs) were observed in 92.6% and 93.4% of subjects in the QL1206 and Xgeva® groups, respectively. Reduction in blood calcium level was found to be the most common AE recorded, with an incidence of 72.8% versus 72.4% in the QL1206 and Xgeva® groups, respectively. Conclusion Similar PK and PD characteristics were exhibited by QL1206 as compared to those of Xgeva®. The inter-CV was slightly large. The safety profiles of denosumab biosimilars and Xgeva® were found to be similar.
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Affiliation(s)
- Hong Zhang
- Phase I Clinical Research Center, The First Hospital of Jilin University, Jilin, China
| | - Min Wu
- Phase I Clinical Research Center, The First Hospital of Jilin University, Jilin, China
| | - Xiaoxue Zhu
- Phase I Clinical Research Center, The First Hospital of Jilin University, Jilin, China
| | - Cuiyun Li
- Phase I Clinical Research Center, The First Hospital of Jilin University, Jilin, China
| | - Xiaojiao Li
- Phase I Clinical Research Center, The First Hospital of Jilin University, Jilin, China
| | - Jixuan Sun
- Phase I Clinical Research Center, The First Hospital of Jilin University, Jilin, China
| | - Chengjiao Liu
- Phase I Clinical Research Center, The First Hospital of Jilin University, Jilin, China
| | - Quan Liu
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Wei Wei
- Institute of Virology and AIDS Research, The First Hospital of Jilin University, Changchun, China
| | - Junqi Niu
- Department of Hepatology, The First Hospital of Jilin University, Changchun, China
| | - Yanhua Ding
- Phase I Clinical Research Center, The First Hospital of Jilin University, Jilin, China
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Lyu H, Yoshida K, Zhao SS, Wei J, Zeng C, Tedeschi SK, Leder BZ, Lei G, Tang P, Solomon DH. Delayed Denosumab Injections and Fracture Risk Among Patients With Osteoporosis : A Population-Based Cohort Study. Ann Intern Med 2020; 173:516-526. [PMID: 32716706 DOI: 10.7326/m20-0882] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Denosumab is effective for osteoporosis, but discontinuation leads to rapid reversal of its therapeutic effect. OBJECTIVE To estimate the risk for fracture among users of denosumab who delayed subsequent doses compared with users who received doses on time. DESIGN Population-based cohort study. SETTING The Health Improvement Network U.K. primary care database, 2010 to 2019. PATIENTS Persons aged 45 years or older who initiated denosumab therapy for osteoporosis. MEASUREMENTS Observational data were used to emulate an analysis of a hypothetical trial with 3 dosing intervals: subsequent denosumab injection given within 4 weeks after the recommended date ("on time"), delay by 4 to 16 weeks ("short delay"), and delay by more than 16 weeks ("long delay"). The primary outcome was a composite of all fracture types at 6 months after the recommended date. Secondary outcomes were major osteoporotic fracture, vertebral fracture, hip fracture, and nonvertebral fracture. RESULTS Investigators identified 2594 patients initiating denosumab therapy. The risk for composite fracture over 6 months was 27.3 in 1000 for on-time dosing, 32.2 in 1000 for short delay, and 42.4 in 1000 for long delay. Compared with on-time injections, short delay had a hazard ratio (HR) for composite fracture of 1.03 (95% CI, 0.63 to 1.69) and long delay an HR of 1.44 (CI, 0.96 to 2.17) (P for trend = 0.093). For vertebral fractures, short delay had an HR of 1.48 (CI, 0.58 to 3.79) and long delay an HR of 3.91 (CI, 1.62 to 9.45). LIMITATION Dosing schedules were not randomly assigned. CONCLUSION Although delayed administration of subsequent denosumab doses by more than 16 weeks is associated with increased risk for vertebral fracture compared with on-time dosing, evidence is insufficient to conclude that fracture risk is increased at other anatomical sites with long delay. PRIMARY FUNDING SOURCE National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation.
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Affiliation(s)
- Houchen Lyu
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, General Hospital of Chinese PLA, Beijing, China, Xiangya Hospital of Central South University, Changsha, China, and Brigham and Women's Hospital, Boston, Massachusetts (H.L.)
| | - Kazuki Yoshida
- Brigham and Women's Hospital, Boston, Massachusetts (K.Y., S.K.T.)
| | - Sizheng S Zhao
- Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, United Kingdom (S.S.Z.)
| | - Jie Wei
- Health Management Center, Xiangya Hospital of Central South University, Changsha, China (J.W.)
| | - Chao Zeng
- Xiangya Hospital of Central South University, Changsha, China (C.Z.)
| | - Sara K Tedeschi
- Brigham and Women's Hospital, Boston, Massachusetts (K.Y., S.K.T.)
| | - Benjamin Z Leder
- Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts (B.Z.L.)
| | - Guanghua Lei
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, and Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, China (G.L.)
| | - Peifu Tang
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, General Hospital of Chinese PLA, Beijing, China (P.T.)
| | - Daniel H Solomon
- Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts (D.H.S.)
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Ukarapong S, Seeherunvong T, Berkovitz G. Current and Emerging Therapies for Pediatric Bone Diseases. Clin Rev Bone Miner Metab 2020. [DOI: 10.1007/s12018-020-09272-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Jaworowicz D, Bihorel S, Zajic S, Stoch SA, Humphrey R, McCrea JB, Stone JA. Population Pharmacokinetic Analysis of the Cathepsin K Inhibitor Odanacatib: Insights Into Intrinsic and Extrinsic Factor Effects on Exposure in Postmenopausal and Elderly Women. J Clin Pharmacol 2020; 60:1107-1123. [PMID: 32302427 DOI: 10.1002/jcph.1606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 02/21/2020] [Indexed: 11/07/2022]
Abstract
This analysis developed a population pharmacokinetic (PK) model for odanacatib, characterized demographic and concomitant medication covariates effect, and provided odanacatib exposure estimates for subjects in phase 2/3 studies. Data from multiple phase 1 (P005, P025, and P014), phase 2b (P004 and P022), and phase 3 (Long-Term Odanacatib Fracture Trial; P018) studies were pooled to create a data set of 1280 postmenopausal women aged 45 to 91 years (102 from phase 1, 514 from phase 2b, and 664 from phase 3) who received weekly oral odanacatib doses ranging from 3 to 100 mg. A 1-compartment model with first-order absorption, dose-dependent relative bioavailability (F1), and first-order elimination best described odanacatib PK. F1 decreased from the 100% reference bioavailability for a 3-mg oral dose to 24.5% for a 100-mg dose. Eight statistically significant covariates were included in the final PK model: body weight, age, race, and concomitant cytochrome P450 (CYP)3A inhibitors on apparent clearance; body weight on apparent central volume of distribution; and concomitant hydrochlorothiazide, high-fat breakfast, and a study effect on F1. All fixed- and random-effects parameters were estimated with good precision (%standard error of the mean ≤29.5%). This population PK analysis provides insights into intrinsic- and extrinsic-factor effects on odanacatib exposure in postmenopausal and elderly women with osteoporosis. The magnitude of the intrinsic-factor effects was generally modest (odanacatib exposure geometric mean ratios, 0.80-1.21) even in subjects aged >80 years, or in subsets with multiple combinations of factors.
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Affiliation(s)
- David Jaworowicz
- Cognigen Corporation (a SimulationsPlus Company), Buffalo, New York, USA
| | - Sébastien Bihorel
- Cognigen Corporation (a SimulationsPlus Company), Buffalo, New York, USA
| | | | | | - Rebecca Humphrey
- Cognigen Corporation (a SimulationsPlus Company), Buffalo, New York, USA
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Bensalem A, Ternant D. Pharmacokinetic Variability of Therapeutic Antibodies in Humans: A Comprehensive Review of Population Pharmacokinetic Modeling Publications. Clin Pharmacokinet 2020; 59:857-874. [DOI: 10.1007/s40262-020-00874-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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30
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Temrikar ZH, Suryawanshi S, Meibohm B. Pharmacokinetics and Clinical Pharmacology of Monoclonal Antibodies in Pediatric Patients. Paediatr Drugs 2020; 22:199-216. [PMID: 32052309 PMCID: PMC7083806 DOI: 10.1007/s40272-020-00382-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Monoclonal antibodies (mAbs) and their derivatives are increasingly used in pediatric pharmacotherapy, and the number of antibody-based drug products with approved pediatric indications is continuously growing. In most instances, pediatric use is being pursued after the efficacy and safety of novel antibody medications have been established in adult indications. The pediatric extrapolation exercise that is frequently used in this context to bridge efficacy and safety from adults to children is oftentimes challenged through uncertainties and knowledge gaps in how to reliably extrapolate pharmacokinetics and clinical pharmacology of mAbs to different pediatric age groups, and how to derive age-appropriate dosing regimens that strike a balance between precision dosing and practicability. The article highlights some of the pharmacokinetic and clinical pharmacology challenges with regard to therapeutic use of mAbs and antibody derivatives in children, including immunogenicity events. Although considering body size-based differences in drug disposition can account for many of the perceived and actual differences in the distribution and elimination of antibody-based therapeutics between children and adults, increasing evidence suggests potential or actual age-associated differences beyond size differences, especially for young pediatric patients such as newborns and infants. To overcome age-associated differences in antibody disposition, various different dosing approaches have been applied to ensure safe and efficacious antibody exposure for pediatric populations of different ages. The development of such dosing regimens and the associated pathway to pediatric indication approval is illustrated in more detail for two antibody-based biologics, the fusion protein abatacept and the mAb tocilizumab.
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Affiliation(s)
- Zaid H. Temrikar
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Ave Room 435, Memphis, TN 38163 USA
| | - Satyendra Suryawanshi
- Clinical Pharmacology and Pharmacometrics, Bristol-Myers Squibb, Princeton, NJ 08540 USA
| | - Bernd Meibohm
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Ave Room 435, Memphis, TN, 38163, USA.
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Understanding Inter-Individual Variability in Monoclonal Antibody Disposition. Antibodies (Basel) 2019; 8:antib8040056. [PMID: 31817205 PMCID: PMC6963779 DOI: 10.3390/antib8040056] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 11/22/2019] [Accepted: 11/27/2019] [Indexed: 12/29/2022] Open
Abstract
Monoclonal antibodies (mAbs) are currently the largest and most dominant class of therapeutic proteins. Inter-individual variability has been observed for several mAbs; however, an understanding of the underlying mechanisms and factors contributing to inter-subject differences in mAb disposition is still lacking. In this review, we analyze the mechanisms of antibody disposition and the putative mechanistic determinants of inter-individual variability. Results from in vitro, preclinical, and clinical studies were reviewed evaluate the role of the neonatal Fc receptor and Fc gamma receptors (expression and polymorphism), target properties (expression, shedding, turnover, internalization, heterogeneity, polymorphism), and the influence of anti-drug antibodies. Particular attention is given to the influence of co-administered drugs and disease, and to the physiological relevance of covariates identified by population pharmacokinetic modeling, as determinants of variability in mAb pharmacokinetics.
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Fontalis A, Kenanidis E, Kotronias RA, Papachristou A, Anagnostis P, Potoupnis M, Tsiridis E. Current and emerging osteoporosis pharmacotherapy for women: state of the art therapies for preventing bone loss. Expert Opin Pharmacother 2019; 20:1123-1134. [PMID: 30958709 DOI: 10.1080/14656566.2019.1594772] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
INTRODUCTION Pharmacological options to address the imbalance between bone resorption and accrual in osteoporosis include anti-resorptive and osteoanabolic agents. Unique biologic pathways such as the Wnt/β-catenin pathway have been targeted in the quest for new emerging therapeutic strategies. AREAS COVERED This review provides an overview of existing pharmacotherapy for osteoporosis in women and explore state-of-the-art and emerging therapies to prevent bone loss, with an emphasis on the mechanism of action, indications and side effects. EXPERT OPINION Bisphosphonates appear to be a reliable and cost-effective option, whereas denosumab has introduced a simpler dosing regimen and may achieve a linear increase in bone mineral density (BMD) with no plateau being observed, along with continuous anti-fracture efficacy. Abaloparatide, a parathyroid-hormone-related peptide (PTHrP)-analogue, approved by the FDA in April 2017, constitutes the first new anabolic osteoporosis drug in the US for nearly 15 years and has also proven its anti-fracture efficacy. Romosozumab, a sclerostin inhibitor, which induces bone formation and suppresses bone resorption, has also been developed and shown a significant reduction in fracture incidence; however, concerns have arisen with regard to increased cardiovascular risk.
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Affiliation(s)
- Andreas Fontalis
- a Department of Oncology and Metabolism , University of Sheffield Medical School , Sheffield , UK.,b Sheffield Teaching Hospitals NHS Foundation Trust , Northern General Hospital , Sheffield , UK
| | - Eustathios Kenanidis
- c Academic Orthopaedic Unit , Aristotle University Medical School, Papageorgiou General Hospital , Thessaloniki , Greece.,d Centre of Orthopaedic and Regenerative Medicine (CORE), Center for Interdisciplinary Research and Innovation (CIRI) , Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - Rafail Angelos Kotronias
- e Division of Cardiovascular Medicine, Oxford University Clinical Academic Graduate School , University of Oxford , Oxford , UK
| | - Afroditi Papachristou
- f Pharmacy Department , Oxford University Hospitals NHS Foundation Trust , Oxford , UK
| | - Panagiotis Anagnostis
- d Centre of Orthopaedic and Regenerative Medicine (CORE), Center for Interdisciplinary Research and Innovation (CIRI) , Aristotle University of Thessaloniki , Thessaloniki , Greece.,g Unit of Reproductive Endocrinology, First Department of Obstetrics and Gynaecology , Aristotle University Medical School , Thessaloniki , Greece
| | - Michael Potoupnis
- c Academic Orthopaedic Unit , Aristotle University Medical School, Papageorgiou General Hospital , Thessaloniki , Greece.,d Centre of Orthopaedic and Regenerative Medicine (CORE), Center for Interdisciplinary Research and Innovation (CIRI) , Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - Eleftherios Tsiridis
- c Academic Orthopaedic Unit , Aristotle University Medical School, Papageorgiou General Hospital , Thessaloniki , Greece.,d Centre of Orthopaedic and Regenerative Medicine (CORE), Center for Interdisciplinary Research and Innovation (CIRI) , Aristotle University of Thessaloniki , Thessaloniki , Greece
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Zhu P, Hsu CH, Liao J, Xu S, Zhang L, Zhou H. Trial Design and Statistical Considerations on the Assessment of Pharmacodynamic Similarity. AAPS JOURNAL 2019; 21:47. [PMID: 30945035 DOI: 10.1208/s12248-019-0321-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 03/17/2019] [Indexed: 02/01/2023]
Abstract
Pharmacodynamics (PD) similarity is an important component to support the claim of similarity between two drugs or devices. This article investigates the trial design and statistical considerations in the equivalence test of PD endpoints. Using bone resorption marker CTX as a case study, the relationship between the PD readouts and drug potency was explored to evaluate the sensitivity of the PD endpoint and guide equivalence margin selection. For PD data that have high baseline variability, one conventional similarity assessment method was to apply baseline-normalization followed by the standard bioequivalence (BE) test (Lancet Haematol. 4:e350-61, 2017, Ann Rheum Dis. 2017). This study showcased the drawbacks of the conventional method for PD data that were close to inhibition saturation, as the baseline-normalization significantly skewed the distribution of the PD data toward non-log-normal. In such cases, the standard BE test can produce an inflated type I error. Alternatively, ANCOVA, when applied to the un-normalized PD data with the baseline as a covariate, produced a satisfactory type I error with sufficient power. Therefore, ANCOVA was recommended for equivalence test of PD markers that has a saturated inhibition profile and high variability at baseline. Moreover, the relationship between PD readouts and drug potency was used to explore the sensitivity of the PD endpoint and it could help justify the equivalence margins, since the standard 80% to 125% BE margin often does not apply to PD. Finally, a decision tree was proposed to help guide the design of the PD equivalence study in the choice of PD endpoints and statistical methods.
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Affiliation(s)
- Peijuan Zhu
- Janssen Research and Development Inc, Raritan, NJ, USA.
| | - Chyi-Hung Hsu
- Janssen Research and Development Inc, Raritan, NJ, USA
| | | | - Steven Xu
- Janssen Research and Development Inc, Raritan, NJ, USA
| | - Liping Zhang
- Janssen Research and Development Inc, Raritan, NJ, USA
| | - Honghui Zhou
- Janssen Research & Development Inc, Spring House, PA, USA
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Tauer JT, Robinson ME, Rauch F. Osteogenesis Imperfecta: New Perspectives From Clinical and Translational Research. JBMR Plus 2019; 3:e10174. [PMID: 31485550 PMCID: PMC6715783 DOI: 10.1002/jbm4.10174] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 01/04/2019] [Accepted: 01/16/2019] [Indexed: 12/30/2022] Open
Abstract
Osteogenesis imperfecta (OI) is a monogenic bone fragility disorder that usually is caused by mutations in one of the two genes coding for collagen type I alpha chains, COL1A1 or COL1A2. Mutations in at least 18 other genes can also lead to an OI phenotype. As genetic testing is more widely used, mutations in these genes are also more frequently discovered in individuals who have a propensity for fractures, but who do not have other typical clinical characteristics of OI. Intravenous bisphosphonate therapy is still the most widely used drug treatment approach. Preclinical studies in OI mouse models have shown encouraging effects when the antiresorptive effect of a bisphosphonate was combined with bone anabolic therapy using a sclerostin antibody. Other novel experimental treatment approaches include inhibition of transforming growth factor beta signaling with a neutralizing antibody and the inhibition of myostatin and activin A by a soluble activin receptor 2B. © 2019 The Authors. JBMR Plus published by Wiley Periodicals, Inc. on behalf of American Society for Bone and Mineral Research
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Affiliation(s)
| | | | - Frank Rauch
- Shriners Hospital for Children Montreal Quebec Canada
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Chukir T, Liu Y, Farooki A. Antiresorptive agents' bone-protective and adjuvant effects in postmenopausal women with early breast cancer. Br J Clin Pharmacol 2019; 85:1125-1135. [PMID: 30536446 DOI: 10.1111/bcp.13834] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 11/22/2018] [Accepted: 11/25/2018] [Indexed: 12/28/2022] Open
Abstract
Potent antiresorptive drugs (bisphosphonate and denosumab) are often used to protect bone health in postmenopausal breast cancer patients. In addition, clinical trials have shown that these drugs increase disease-free survival, though the mechanism of adjuvant benefit is largely unknown. Here we review the bone health and adjuvant data for both classes of antiresorptive drugs and highlight differences in their pharmacology. Inhibition of bone resorption is vitally important to protect against osteoporotic fractures, and may also contribute to adjuvant survival benefits by making the bone microenvironment less amenable to breast cancer metastasis. After a course of therapy, stoppage of bisphosphonates yields a persistent antiresorptive effect, whereas discontinuation of denosumab causes a rebound increase in bone resorption markers and a loss of bone mineral density to baseline levels. Whether the potential adjuvant benefits of denosumab are also rapidly lost after drug discontinuation deserves further investigation.
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Affiliation(s)
- Tariq Chukir
- Endocrinology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Yi Liu
- Department of Internal Medicine, Lahey Hospital and Medical Center, Burlington, MA, USA
| | - Azeez Farooki
- Endocrinology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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Lemaire V, Cox DR. Dynamics of Bone Cell Interactions and Differential Responses to PTH and Antibody-Based Therapies. Bull Math Biol 2018; 81:3575-3622. [PMID: 30460589 DOI: 10.1007/s11538-018-0533-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Accepted: 11/01/2018] [Indexed: 01/04/2023]
Abstract
We propose a mathematical model describing the dynamics of osteoblasts and osteoclasts in bone remodeling. The goal of this work is to develop an integrated modeling framework for bone remodeling and bone cell signaling dynamics that could be used to explore qualitatively combination treatments for osteoporosis in humans. The model has been calibrated using 57 checks from the literature. Specific global optimization methods based on qualitative objectives have been developed to perform the model calibration. We also added pharmacokinetics representations of three drugs to the model, which are teriparatide (PTH(1-34)), denosumab (a RANKL antibody) and romosozumab (a sclerostin antibody), achieving excellent goodness-of-fit of human clinical data. The model reproduces the paradoxical effects of PTH on the bone mass, where continuous administration of PTH results in bone loss but intermittent administration of PTH leads to bone gain, thus proposing an explanation of this phenomenon. We used the model to simulate different categories of osteoporosis. The main attributes of each disease are qualitatively well captured by the model, for example changes in bone turnover in the disease states. We explored dosing regimens for each disease based on the combination of denosumab and romosozumab, identifying adequate ratios and doses of both drugs for subpopulations of patients in function of categories of osteoporosis and the degree of severity of the disease.
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Affiliation(s)
- Vincent Lemaire
- Rinat (Pfizer Inc.), 230 East Grand Avenue, South San Francisco, CA, 94080, USA. .,Genentech, 1 DNA Way, MS 463A, South San Francisco, CA, 94080, USA.
| | - David R Cox
- Rinat (Pfizer Inc.), 230 East Grand Avenue, South San Francisco, CA, 94080, USA
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Hasegawa C, Duffull SB. Automated Scale Reduction of Nonlinear QSP Models With an Illustrative Application to a Bone Biology System. CPT-PHARMACOMETRICS & SYSTEMS PHARMACOLOGY 2018; 7:562-572. [PMID: 30043496 PMCID: PMC6157701 DOI: 10.1002/psp4.12324] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Integrating quantitative systems pharmacology (QSP) into pharmacokinetics/pharmacodynamics (PKPD) has resulted in models that are highly complex and often not amenable to further exploration via estimation or design. Because QSP models are usually depicted using nonlinear differential equations it is not straightforward to apply some model reduction techniques, such as proper lumping. In this study, we explore the combined use of linearization and proper lumping as a general method to simplification of a nonlinear QSP model. We illustrate this with a bone biology model and the reduced model was then applied to describe bone mineral density (BMD) changes due to denosumab dosing. The methodologies used in this study can be applied to other multiscale models for developing a mechanism-based structural model for future analyses.
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Affiliation(s)
- Chihiro Hasegawa
- School of Pharmacy, University of Otago, Dunedin, New Zealand.,Translational Medicine Center, Ono Pharmaceutical Co., Ltd., Osaka, Japan
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Abstract
Denosumab (Prolia®; Pralia®) is a human monoclonal antibody targeting the key bone resorption mediator RANKL. The drug is administered via subcutaneous injection once every 6 months and is approved for various indications, including the treatment of postmenopausal (PM) women with osteoporosis at increased/high risk of fracture or failure/intolerance of other osteoporosis therapies (indications featured in this review). Denosumab showed benefit in several phase 3 or 4 studies in PM women with osteoporosis or low bone mineral density (BMD), including the pivotal 3-year double-blind FREEDOM trial and its 7-year open-label extension. Denosumab reduced the risk of vertebral, nonvertebral and hip fractures and increased BMD across skeletal sites versus placebo in FREEDOM, with these benefits maintained over up to 10 years' therapy in the extension. The drug was also more effective in improving BMD than bisphosphonates, including in women switched from a bisphosphonate regimen, in 1-year trials; however, whether these differences translate into differences in anti-fracture efficacy is unclear. Denosumab was generally well tolerated over up to 10 years' treatment, although an increased risk of multiple vertebral fractures was observed after discontinuation of the drug. Thus, denosumab is a key treatment option for PM women with osteoporosis who have an increased/high risk of fracture or failure/intolerance of other osteoporosis therapies, although the potential for multiple vertebral fractures to occur after discontinuation of the drug requires consideration of subsequent management options.
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Affiliation(s)
- Emma D Deeks
- Springer, Private Bag 65901, Mairangi Bay, Auckland, 0754, New Zealand.
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Hecht M, Veigure R, Couchman L, S Barker CI, Standing JF, Takkis K, Evard H, Johnston A, Herodes K, Leito I, Kipper K. Utilization of data below the analytical limit of quantitation in pharmacokinetic analysis and modeling: promoting interdisciplinary debate. Bioanalysis 2018; 10:1229-1248. [PMID: 30033744 DOI: 10.4155/bio-2018-0078] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Traditionally, bioanalytical laboratories do not report actual concentrations for samples with results below the LOQ (BLQ) in pharmacokinetic studies. BLQ values are outside the method calibration range established during validation and no data are available to support the reliability of these values. However, ignoring BLQ data can contribute to bias and imprecision in model-based pharmacokinetic analyses. From this perspective, routine use of BLQ data would be advantageous. We would like to initiate an interdisciplinary debate on this important topic by summarizing the current concepts and use of BLQ data by regulators, pharmacometricians and bioanalysts. Through introducing the limit of detection and evaluating its variability, BLQ data could be released and utilized appropriately for pharmacokinetic research.
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Affiliation(s)
- Max Hecht
- Chair of Analytical Chemistry, Institute of Chemistry, University of Tartu, 14a Ravila Street, 50411 Tartu, Estonia
- Analytical Services International, St George's University of London, Cranmer Terrace, London, SW17 0RE, UK
| | - Rūta Veigure
- Chair of Analytical Chemistry, Institute of Chemistry, University of Tartu, 14a Ravila Street, 50411 Tartu, Estonia
| | - Lewis Couchman
- Analytical Services International, St George's University of London, Cranmer Terrace, London, SW17 0RE, UK
| | - Charlotte I S Barker
- Paediatric Infectious Diseases Research Group, Institute for Infection & Immunity, St George's University of London, London, SW17 0RE, UK
- Inflammation, Infection & Rheumatology Section, UCL Great Ormond Street Institute of Child Health, London, WC1N 1EH, UK
- Paediatric Infectious Diseases Unit, St George's University Hospitals NHS Foundation Trust, London, SW17 0RE, UK
| | - Joseph F Standing
- Paediatric Infectious Diseases Research Group, Institute for Infection & Immunity, St George's University of London, London, SW17 0RE, UK
- Inflammation, Infection & Rheumatology Section, UCL Great Ormond Street Institute of Child Health, London, WC1N 1EH, UK
| | - Kalev Takkis
- Analytical Services International, St George's University of London, Cranmer Terrace, London, SW17 0RE, UK
| | - Hanno Evard
- Chair of Analytical Chemistry, Institute of Chemistry, University of Tartu, 14a Ravila Street, 50411 Tartu, Estonia
| | - Atholl Johnston
- Analytical Services International, St George's University of London, Cranmer Terrace, London, SW17 0RE, UK
- Clinical Pharmacology, Barts & The London School of Medicine & Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Koit Herodes
- Chair of Analytical Chemistry, Institute of Chemistry, University of Tartu, 14a Ravila Street, 50411 Tartu, Estonia
| | - Ivo Leito
- Chair of Analytical Chemistry, Institute of Chemistry, University of Tartu, 14a Ravila Street, 50411 Tartu, Estonia
| | - Karin Kipper
- Chair of Analytical Chemistry, Institute of Chemistry, University of Tartu, 14a Ravila Street, 50411 Tartu, Estonia
- Analytical Services International, St George's University of London, Cranmer Terrace, London, SW17 0RE, UK
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Target-Mediated Drug Disposition Population Pharmacokinetics Model of Alirocumab in Healthy Volunteers and Patients: Pooled Analysis of Randomized Phase I/II/III Studies. Clin Pharmacokinet 2018; 56:1155-1171. [PMID: 28063030 PMCID: PMC5591810 DOI: 10.1007/s40262-016-0505-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Background and Objective Proprotein convertase subtilisin/kexin type 9 inhibition with monoclonal antibodies such as alirocumab significantly reduces low-density lipoprotein-cholesterol levels ± other lipid-lowering therapies. We aimed to develop and qualify a population pharmacokinetics (PopPK) model for alirocumab in healthy subjects and patients, taking into account the mechanistic target-mediated drug disposition (TMDD) process. Methods This TMDD model was developed using a subset of the alirocumab clinical trial database, including nine phase I/II/III studies (n = 527); the model was subsequently expanded to a larger data set of 13 studies (n = 2870). Potential model parameters and covariate relationships were explored, and predictive ability was qualified using a visual predictive check. Results The TMDD model was built using the quasi-steady-state approximation. The final TMDD–quasi-steady-state model included a significant relationship between distribution volume of the central compartment and disease state: distribution volume of the central compartment was 1.56-fold higher in patients vs. healthy subjects. Separately, application of the model to the expanded data set revealed a significant relationship between linear clearance and statin co-administration: linear clearance was 1.27-fold higher with statins. The good predictive performance of the TMDD model was assessed based on graphical and numerical quality criteria, together with the visual predictive check and comparison of the predictions to those from a PopPK model with parallel linear and Michaelis–Menten clearances (i.e., simplification of the TMDD PopPK model). Conclusions This mechanistic TMDD PopPK model integrates the interaction of alirocumab with its target and accurately predicts both alirocumab and total proprotein convertase subtilisin/kexin type 9 concentrations in healthy subjects and patients. Electronic supplementary material The online version of this article (doi:10.1007/s40262-016-0505-1) contains supplementary material, which is available to authorized users.
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Abstract
PURPOSE OF REVIEW Denosumab is an inhibitor of receptor activator of nuclear factor kappa-B ligand (RANKL), and has emerged as an important novel therapy for skeletal disorders. This article examines the use of denosumab in children. RECENT FINDINGS Considerable safety and efficacy data exists for denosumab treatment of adults with osteoporosis, bone metastases, and giant cell tumors. Pediatric data is limited; however, evidence suggests denosumab may be beneficial in decreasing bone turnover, increasing bone density, and preventing growth of certain skeletal neoplasms in children. Denosumab's effect on bone turnover is rapidly reversible after drug discontinuation, representing a key difference from bisphosphonates. Rebound increased bone turnover has led to severe hypercalcemia in several pediatric patients. Denosumab is a promising therapy for pediatric skeletal disorders. At present, safety concerns related to rebounding bone turnover and mineral homeostasis impact use of denosumab in children. Research is needed to determine if and how these effects can be mitigated.
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Affiliation(s)
- Alison M Boyce
- Section on Skeletal Disorders and Mineral Homeostasis, Craniofacial and Skeletal Diseases Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Building 30 Room 228 MSC 4320, Bethesda, MD, 20982, USA.
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Makras P, Tsoli M, Anastasilakis AD, Thanou M, Kaltsas G. Denosumab for the treatment of adult multisystem Langerhans cell histiocytosis. Metabolism 2017; 69:107-111. [PMID: 28285639 DOI: 10.1016/j.metabol.2017.01.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Revised: 01/05/2017] [Accepted: 01/06/2017] [Indexed: 11/21/2022]
Abstract
PURPOSE An etiological treatment is currently lacking for Langerhans Cell Histiocytosis (LCH). Receptor activator of nuclear factor κB ligand (RANKL) appears to play a central role in the lesional immunological process inducing compensatory osteoprotegerin (OPG) activation. In a preliminary study we aimed to evaluate for the first time the use of denosumab, a RANKL inhibitor, as a targeted treatment strategy in LCH in order to support and enhance endogenous OPG action in order to control or alter the lesional immunological process. PROCEDURES Two adult female patients with painful osteolytic bone lesions and concomitant pulmonary involvement received bimonthly denosumab 120mg in a total of 4 doses. RESULTS Both patients reported an immediate pain relief within the first two weeks following the 1st dose of denosumab. One month following the last dose an almost full remission of the initial osteolytic and lung lesions was observed, although an apparent new bone lesion was detected in one patient that was treated with a single intralesional steroid injection. No adverse events were recorded throughout the treatment period. Both patients have no active disease 6months following the last denosumab dose. CONCLUSIONS Denosumab could be considered an effective treatment option in adults with multisystem LCH also exerting a significant analgesic effect in bone lesions, warranting further investigation.
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Affiliation(s)
- Polyzois Makras
- Department of Endocrinology and Diabetes, 251 Hellenic Air Force General Hospital, 3 Kanellopoulou St., 11525, Athens, Greece.
| | - Marina Tsoli
- Department of Pathophysiology, National University of Athens, 75 Mikras Asias St., 11527, Athens, Greece
| | | | - Maria Thanou
- REA Maternity Hospital, 383 A. Singrou Ave., P. Faliro, 17564, Athens, Greece
| | - Gregory Kaltsas
- Department of Pathophysiology, National University of Athens, 75 Mikras Asias St., 11527, Athens, Greece
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Samineni D, Girish S, Li C. Impact of Shed/Soluble targets on the PK/PD of approved therapeutic monoclonal antibodies. Expert Rev Clin Pharmacol 2016; 9:1557-1569. [DOI: 10.1080/17512433.2016.1243055] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Brodowicz T, Hemetsberger M, Windhager R. Denosumab for the treatment of giant cell tumor of the bone. Future Oncol 2016; 11:1881-94. [PMID: 26161925 DOI: 10.2217/fon.15.94] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Giant cell tumor of bone is typically composed of neoplastic stromal cells and non-neoplastic osteoclastic giant cells. RANK-expressing osteoclastic giant cells are recruited by RANK ligand excreted by the stromal cells, and used by these neoplastic cells to create expansion space. Denosumab specifically binds to and inhibits RANK ligand, thereby eradicating osteoclastic giant cells from the tumor and thus reducing osteolytic activity. Clinical studies reported disease stabilization and clinical benefit in terms of reduced pain and analgesics use, avoided surgeries or surgeries with less morbid procedures. Adverse events observed in patients with giant cell tumor of bone were consistent with the known safety profile of denosumab with a very low incidence of hypocalcemia and osteonecrosis. Overall, denosumab was shown to suppress osteolytic activity and slow disease progression and is thus a treatment option for patients with giant cell tumor of bone.
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Affiliation(s)
- Thomas Brodowicz
- Department of Internal Medicine 1/Oncology, Comprehensive Cancer Center Vienna, MusculoSkeletal Tumor Unit, Medical University Vienna, Vienna, Austria
| | | | - Reinhard Windhager
- Department of Orthopedics, Comprehensive Cancer Center Vienna, MusculoSkeletal Tumor Unit, Medical University Vienna, Vienna, Austria
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Perez Ruixo JJ, Doshi S, Sohn W, Chow A. Quantitative pharmacology of denosumab in patients with bone metastases from solid tumors. J Clin Pharmacol 2015; 55 Suppl 3:S85-92. [PMID: 25707967 DOI: 10.1002/jcph.388] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 08/26/2014] [Indexed: 01/29/2023]
Abstract
Denosumab (XGEVA®) is a recombinant, fully human IgG2 monoclonal antibody directed against the receptor activator of nuclear factor kappa-B ligand (RANKL) that prevents differentiation of osteoclast precursors into mature osteoclasts and acceleration of bone resorption, resulting in the inhibition of osteoclast activation. Denosumab is indicated for the prevention of skeletal-related events (SREs) in adult patients with bone metastases from solid tumors at the dose of 120 mg administered subcutaneously (SC) every 4 weeks. This review is focused on describing its target-mediated disposition and direct inhibitory effect on bone resorption, as well as the modeling and simulation techniques used to integrate the PKPD information collected during clinical development of denosumab. In addition, this review further discusses the clinical relevance of patient covariate effects on denosumab systemic exposure, target engagement and downstream pharmacodynamics biomarkers, and the rationale for dosing regimen selection for Phase 3 studies. Phase 3 clinical studies demonstrated that denosumab was superior to zoledronic acid in inhibiting bone resorption and, consequently, delaying the time to first SRE by a median of 8.2 months in patients with bone metastases from solid tumors. Thus, denosumab may be considered a better alternative treatment than zoledronic acid for the prevention of SRE in patients with bone metastases from solid tumors.
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Makras P, Delaroudis S, Anastasilakis AD. Novel therapies for osteoporosis. Metabolism 2015; 64:1199-214. [PMID: 26277199 DOI: 10.1016/j.metabol.2015.07.011] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Revised: 07/02/2015] [Accepted: 07/06/2015] [Indexed: 12/28/2022]
Abstract
Since the identification of osteoporosis as a major health issue in aging populations and the subsequent development of the first treatment modalities for its management, considerable progress has been made in our understanding of the mechanisms controlling bone turnover and disease pathophysiology, thus enabling the pinpointing of new targets for intervention. This progress, along with advances in biotechnology, has rendered possible the development of ever more sophisticated treatments employing novel mechanisms of action. Denosumab, a monoclonal antibody against RANKL, approved for the treatment of postmenopausal and male osteoporosis, significantly and continuously increases bone mineral density (BMD) and maintains a low risk of vertebral, non-vertebral, and hip fractures for up to 8 years. Currently available combinations of estrogens with selective estrogen receptor modulators moderately increase BMD without causing the extra-skeletal adverse effects of each compound alone. The cathepsin K inhibitor odanacatib has recently been shown to decrease vertebral, non-vertebral, and hip fracture rates and is nearing approval. Romosozumab, an anti-sclerosin antibody, and abaloparatide, a PTH-related peptide analog, are at present in advanced stages of clinical evaluation, so far demonstrating efficaciousness together with a favorable safety profile. Several other agents are currently in earlier clinical and preclinical phases of development, including dickkopf-1 antagonists, activin A antagonists, β-arrestin analogs, calcilytics, and Src tyrosine kinase inhibitors.
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Affiliation(s)
- Polyzois Makras
- Department of Endocrinology and Diabetes, 251 Hellenic Air Force & VA General Hospital, Athens, Greece
| | - Sideris Delaroudis
- Department of Endocrinology, 424 General Military Hospital, Thessaloniki, Greece
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Zheng J, van Schaick E, Wu LS, Jacqmin P, Perez Ruixo JJ. Using early biomarker data to predict long-term bone mineral density: application of semi-mechanistic bone cycle model on denosumab data. J Pharmacokinet Pharmacodyn 2015; 42:333-47. [PMID: 26123919 DOI: 10.1007/s10928-015-9422-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2014] [Accepted: 06/09/2015] [Indexed: 01/22/2023]
Abstract
Osteoporosis is a chronic skeletal disease characterized by low bone strength resulting in increased fracture risk. New treatments for osteoporosis are still an unmet medical need because current available treatments have various limitations. Bone mineral density (BMD) is an important endpoint for evaluating new osteoporosis treatments; however, the BMD response is often slower and less profound than that of bone turnover markers (BTMs). If the relationship between BTMs and BMD can be quantified, the BMD response can be predicted by the changes in BTM after a single dose; therefore, a decision based on BMD changes can be informed early. We have applied a bone cycle model to a phase 2 denosumab dose-ranging study in osteopenic women to quantitatively link serum denosumab pharmacokinetics, BTMs, and lumbar spine (LS) BMD. The data from two phase 3 denosumab studies in patients with low bone mass, FREEDOM and DEFEND, were used for external validation. Both internal and external visual predictive checks demonstrated that the model was capable of predicting LS BMD at the denosumab regimen of 60 mg every 6 months. It has been demonstrated that the model, in combination with the changes in BTMs observed from a single-dose study in men, is capable of predicting long-term BMD outcomes (e.g., LS BMD response in men after 1 year of treatment) in different populations. We propose that this model can be used to inform drug development decisions for osteoporosis treatment early via evaluating LS BMD response when BTM data become available in early trials.
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Affiliation(s)
- Jenny Zheng
- Pharmacokinetics and Drug Metabolism Division, Amgen Inc., One Amgen Center Drive, Thousand Oaks, CA, 91320, USA
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van Schaick E, Zheng J, Perez Ruixo JJ, Gieschke R, Jacqmin P. A semi-mechanistic model of bone mineral density and bone turnover based on a circular model of bone remodeling. J Pharmacokinet Pharmacodyn 2015; 42:315-32. [PMID: 26123920 DOI: 10.1007/s10928-015-9423-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Accepted: 06/09/2015] [Indexed: 11/24/2022]
Abstract
Development of novel therapies for bone diseases can benefit from mathematical models that predict drug effect on bone remodeling biomarkers. Therefore, a bone cycle model (BCM) was developed that takes into consideration the concept of the basic multicellular unit and the dynamic equilibrium of bone remodeling. The model is a closed form cyclical model with four compartments representing resorption, formation, primary mineralization, and secondary mineralization. Equations describing the time course of bone turnover biomarkers were developed using the flow rate of bone cycle units (BCU) between the compartments or the amount of BCU in each compartment. A disease progression model representing bone loss in osteoporosis, a vitamin D and calcium supplementation (placebo) model, and a drug model for antiresorptive treatments were added to the model. Initial model parameter values were derived from published bone turnover data. The BCM accurately described biomarker-time profiles in postmenopausal women receiving either placebo or bisphosphonate treatment. The slow continual increase in bone mineral density (BMD) observed after 1 year of treatment was accurately described when changes in bone turnover were combined with increases in mineralization. For this purpose, the secondary mineralization compartment was replaced by three catenary chain compartments representing increasing mineral content. The refined BCM satisfactorily predicted biomarker profiles after long-term (10-year) bisphosphonate treatment. Furthermore, the model successfully described individual bone turnover markers and BMD results following treatment with denosumab in postmenopausal women. Analyses with this model could be used to optimize dosing regimens and to predict effects of novel osteoporotic treatments.
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Affiliation(s)
- Erno van Schaick
- SGS Exprimo NV, Generaal de Wittelaan 19A b5, 2800, Mechelen, Belgium,
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Hiramatsu R, Ubara Y, Sawa N, Hoshino J, Hasegawa E, Kawada M, Imafuku A, Sumida K, Mise K, Hayami N, Suwabe T, Takaichi K. Denosumab for low bone mass in hemodialysis patients: a noncontrolled trial. Am J Kidney Dis 2015; 66:175-7. [PMID: 25979349 DOI: 10.1053/j.ajkd.2015.03.012] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 03/05/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Rikako Hiramatsu
- Toranomon Hospital, Tokyo, Japan; Okinaka Memorial Institute, Tokyo, Japan.
| | - Yoshifumi Ubara
- Toranomon Hospital, Tokyo, Japan; Okinaka Memorial Institute, Tokyo, Japan
| | | | | | | | | | | | | | | | | | | | - Kenmei Takaichi
- Toranomon Hospital, Tokyo, Japan; Okinaka Memorial Institute, Tokyo, Japan
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Abstract
Subcutaneous denosumab (Prolia(®) [USA, Europe]; Pralia(®) [Japan]) once every 6 months is indicated in several countries for the treatment of postmenopausal women with osteoporosis at increased or high risk for fractures (featured indication). In some countries, it is also indicated for use in postmenopausal women who have failed or are intolerant to other osteoporosis treatments. In several international, phase III trials (≤3 years' duration) involving more than 12,000 women with postmenopausal osteoporosis or low bone mineral density (BMD), including Asian studies, denosumab was an effective and generally well tolerated treatment. Relative to placebo, denosumab treatment significantly reduced the risk of vertebral, nonvertebral and hip fractures and increased BMD at all skeletal sites evaluated, including the lumbar spine and total hip. Furthermore, the benefits of denosumab treatment were generally evident after the first dose and were maintained during up to 8 years of treatment in an ongoing extension study. The tolerability profile of denosumab during this extension phase was consistent with that observed during the initial 3-year FREEDOM trial. At 12 months, denosumab treatment increased BMD at the total hip, lumbar spine and/or femoral neck and reduced markers of bone turnover to a significantly greater extent than oral bisphosphonates in women who were essentially bisphosphonate-naive and in those who had switched from alendronate to denosumab treatment. Further clinical experience, including an ongoing postmarketing safety study, will more fully define the long-term safety of denosumab. In the meantime, denosumab is an important option for the treatment of women with postmenopausal osteoporosis at increased or high-risk of fractures, including in women at increased risk of fracture who are unable to take other osteoporosis treatments.
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Affiliation(s)
- Lesley J Scott
- Adis, Level 1, 5 The Warehouse Way, Northcote 0627; Private Bag 65901, Mairangi Bay 0754, Auckland, New Zealand,
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