Algorithm for the management of patients at low, high and very high risk of osteoporotic fractures

Background:Objectives:To assess the frequency of fragility fractures and the 10-year risk of major osteoporotic fractures using the fracture risk assessment tool (FRAX) tool in patients with systemic sclerosis (SSc).Methods:The study included 136 patients with SSc who met the ACR/EULAR 2013 criteria: 110 (80.9%) postmenopausal women and 26 (19.1%) men over 50 years of age, mean age 59,3 + 7.5 years. The duration of the disease was 10,0 [6.0; 15.0] years in women and 6,0 [3.5; 9.0] years in men. A questionnaire was conducted and the risk of major osteoporotic fractures was calculated according to FRAX tool, as a result of which patients were divided into groups of low, moderate or high risk. Individuals at moderate risk underwent dual-energy X-ray absorptiometry (DXA) of the proximal femur, followed by a 10-year probability of major osteoporotic fractures recalculation with the inclusion of the femoral neck T-score. According to the obtained fracture risk assessment tool value, patients were assigned as having a low, high or very high risk.Results:Fragility fractures of various localization were found in 50 (36,7%) people: 41 (37,3%) women and 9 (34.6%) men. Vertebral and peripheral bone fractures occurred with the same frequency (19,8%) without significant differences depending on the patient’s gender. Only 1 (3,8%) male had a history of proximal femoral fracture. Fractures of both the vertebra and the peripheral bone occurred in 4 (2,9%) people: 3 (2,7%) women and 1 (3,8%) man.9 (8,2%) women and 16 (61,5%) men had a low risk of major osteoporotic fractures according to FRAX, 60 (54,5%) and 10 (38,5%) - a moderate risk, respectively, while 41 (37,3%) women were at high risk. Among 86 patients without a history of low-energy fractures (69 women and 17 men), 8 (11,6%) women and 16 (94,1%) men were at low risk of major osteoporotic fractures, and 57 (82,6%) and 1 (5,9%), respectively, were at moderate risk. Only 4 (5,8%) women were assigned to the high-risk group. After recalculation of the fracture risk assessment tool with inclusion of the femoral neck T-score in persons with moderate risk without a history of fragility fractures, 9 (13,0%) women and 1 (5,9%) man were found to be at high risk, 14 (20,3%) women - at very high risk and 34 (49,3%) women - at low risk.Among moderate-risk patients with prior fractures after FRAX recalculation 3 (7,3%) women and 7 (77,8%) men became at low risk, 1 (11,1%) male - at high and 1(11,1%) male – at very high risk. Thus, 55 (50,0%) women and 1 (3,8%) man were at very high, 12 (10,9%) and 2 (7,7%), respectively, - at high, and 43 (39,1%) and 23 (88,5%), respectively, - at low risk of major osteoporotic fractures.Conclusion:In the examined cohort of patients with SSc, the frequency of fragility fractures was 37,3% in women and 34,6% in men. A high and very high risk of major osteoporotic fractures was found in 60,9% of women and 11,5% of men. 3 (2,7%) women and 6 (23,1%) men with a history of previous fractures were in the low-risk group by FRAX, but they need to consider the appointment of anti-osteoporotic therapy as for patients at high and very high risk.Disclosure of Interests:None declared.

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SAT0452 DIFFERENT PROFILE OF RISK OF FRACTURE IN PATIENTS TREATED WITH ANTI-OSTEOPOROTIC DRUGS IN ITALY USING A NEW ALGORITHM

Annals of the Rheumatic Diseases ◽

10.1136/annrheumdis-2020-eular.2559 ◽

2020 ◽

Vol 79 (Suppl 1) ◽

pp. 1183-1183

Author(s):

G. Adami ◽

A. Fassio ◽

A. Giollo ◽

G. Orsolini ◽

O. Viapiana ◽

...

Keyword(s):

Zoledronic Acid ◽

High Risk ◽

Fracture Risk ◽

Osteoporotic Fracture ◽

Treatment Initiation ◽

Osteoporotic Fractures ◽

Similar Treatment ◽

Risk Of Fracture ◽

Link Type ◽

Very High

Background:A new algorithm for management of patients at low, high and very high risk of osteoporotic fractures has been recently proposed, has been also recommended treating those patients at very high risk of fracture with bone anabolics (1). A similar treatment algorithm has been applied in Italy since 2015, when the “Nota 79”, that regulates the reimbursability for osteoporosis medications, has been developed by the Italian Agency for Drugs (AIFA) (2).Objectives:In the present study, using a new mathematical and computerized algorithm, we seek to investigate the profile of risk of fracture of patients starting treatment with different anti-osteoporotic medications in Italy.Methods:We retrospectively analyzed the 10-year risk of major osteoporotic fracture calculated with the DeFRAcalc79 tool in postmenopausal women aged over 50 years that were initiating an anti-osteoporotic treatment (fully reimbursed according to the Nota 79). DeFRAcalc79 is a new web-based fracture risk-assessment tool (https://defra-osteoporosi.it) that arithmetically adjusts the risk based on the integration of multiple risk factors contemplated by the AIFA’s Nota 79, including: demographic and anthropometric data, femoral and/or lumbar spine BMD T-score, family history of femoral or vertebral fractures, number and site of previous osteoporotic fracture (including vertebral, femoral, and nonvertebral nonfemoral fractures), glucocorticoid treatment (> 3 or > 12 months, ≥5 mg prednisone or equivalent), adjuvant hormone therapy for breast or prostate cancer, and comorbidities that increase the risk (rheumatoid arthritis and other connective tissue diseases, chronic obstructive pulmonary disease, inflammatory bowel diseases, Parkinson’s disease, multiple sclerosis, HIV infection, diabetes, or severe physical handicap).Results:We retrieved data for 10,235 women prescribed with an anti-osteoporotic treatment.Figure 1shows the mean 10-year fracture risk estimated with DeFRAcalc79 tool at the time of the treatment initiation. Teriparatide users had the highest 10-year risk of fracture (67.4% Standard Deviation [SD] 21.5%). We found that in 2,231 patients starting denosumab, the 10-year baseline risk of fracture was 38.5%, SD 22.8%. In 5,759 patients initiating alendronate was 25.7%, SD 15.3% and in patients initiating risedronate was 27.9%, SD 26.9%. Patients prescribed with zoledronic acid had a mean 10-year risk of fracture of 35.6%, SD 21.6. P values between means were all <0.01.Figure 1.Mean 10-year risk of fracture estimated with DeFRAcalc79 tool at the time of treatment initiation, p< 0.01 between all means.Conclusion:The risk of fracture of Italian post-menopausal women initiating different anti-osteoporotic medications varies significantly. Teriparatide is prescribed to patients with greater risk of fracture. The Nota 79 correctly individuates patients at very high risk of fracture that merit treatment with a bone anabolic. Denosumab and zoledronic acid are prescribed to patients with a greater risk of fracture compared to oral bisphosphonates.DeFRAcalc79 is a useful and practical tool for the integrated evaluation of the profile of risk of fracture.References:[1]Kanis JA et al. Algorithm for the management of patients at low, high and very high risk of osteoporotic fractures. Osteoporos Int 2019 31:1–12.https://doi.org/10.1007/s00198-019-05176-3[2]Adami G et al. Comments on Kanis et al.: Algorithm for the management of patients at low, high, and very high risk of osteoporotic fractures. Osteoporos Int. 2020. doi: 10.1007/s00198-020-05302-6. [Epub ahead of print]Disclosure of Interests:Giovanni Adami: None declared, Angelo Fassio Speakers bureau: Angelo Fassio reports personal fees from: Abiogen and Novartis, outside the submitted work., Alessandro Giollo: None declared, Giovanni Orsolini: None declared, Ombretta Viapiana: None declared, Davide Gatti Speakers bureau: Davide Gatti reports personal fees from Abiogen, Amgen, Janssen-Cilag, Mundipharma, outside the submitted work., Maurizio Rossini Speakers bureau: AbbVie, Abiogen, Amgen, BMS, Eli-Lilly, Novartis, Pfizer, Sanofi, Sandoz and UCB

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