6.6.2 Bisphosphonates and other drugs affecting bone metabolism
NICE guidance for the SECONDARY prevention of osteoporotic fragility fractures in post menopausal women (NICE TA161)
Guidance This guidance relates only to treatments for the secondary prevention of fragility fractures in postmenopausal women who have osteoporosis and have sustained a clinically apparent osteoporotic fragility fracture. Osteoporosis is defined by a T-score of - 2.5 standard deviations (SD) or lower on dual-energy X-ray absorptiometry (DXA) scanning (T-score relates to the measurement of bone mineral density (BMD) using central (hip and/or spine) DXA scanning and is expressed as the number of standard deviations (SD) from peak BMD). However, the diagnosis may be assumed in women aged 75 years or older if the responsible clinician considers a DXA scan to be clinically inappropriate or unfeasible.
This guidance assumes that women who receive treatment have an adequate calcium intake and are vitamin D replete. Unless clinicians are confident that women who receive treatment meet these criteria, calcium and/or vitamin D supplementation should be considered.
This guidance does not cover the following:
- The use of alendronate, etidrobate, risedronate, raloxifen or teriparatide for the secondary prevention of osteoporotic fragility in women with normal bone mineral density (BMD) or osteopenia (that is, women with a T-score between -1 and-2.5 SD below peak BMD)
Alendronate Alendronate is recommended as a treatment option for the secondary prevention of osteoporotic fragility fractures in postmenopausal women who are confirmed to have osteoporosis (that is, a T-score of - 2.5 SD or below). In women aged 75 years or older, a DXA scan may not be required if the responsible clinician considers it to be inappropriate or unfeasible.
When the decision has been made to initiate treatment with alendronate, the preparation prescribed should be chosen on the basis of the lowest acquisition cost available.
First Line Bisphosphonate
GREEN Alendronate tablets 70mg once weekly + prescribe Adcal D3 1 tab twice daily
Apart from alendronate, no other bisphosphonate (or any other treatment) should be initiated first line for primary or secondary prevention of osteoporosis.
An effervescent formulation of alendronic acid , for specific patients with swallowing difficulties, is available as an alternative to improve compliance. Consultant initiation only.
AMBER Alendronic acid effervescent tablets 70mg (Binosto®)
Risedronate Risedronate (and etidronate) are recommended as alternative treatment options for the secondary prevention of osteoporotic fragility fractures in postmenopausal women:
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who are unable to comply with the special instructions for the administration of alendronate, or have a contraindication to or are intolerant of alendronate (as defined in section 7 below) and
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who also have a combination of T-score, age and number of independent clinical risk factors for fracture (see section 6 below) as indicated in the following table.
T-scores (SD) at (or below) which risedronate or etidronate is recommended when alendronate cannot be taken
_a = Treatment with risedronate or etidronate is not recommended.
If a woman aged 75 years or older has not previously had her BMD measured, a DXA scan may not be required if the responsible clinician considers it to be clinically inappropriate or unfeasible.
In deciding between risedronate and etidronate, clinicians and patients need to balance the overall proven effectiveness profile of the drugs against their tolerability and adverse effects in individual patients.
Second Line Bisphosphonate
GREEN Risedronate tablets 35mg once weekly + prescribe Adcal D3 1 tab twice daily
tablets 5mg daily + prescribe Adcal D3 1 tab twice daily
Strontium ranelate - removed from formulary after recent EMA recommendations
Patients currently on strontium should be individually assessed to determine their on-going fracture risk. In brief this would be assessing individual risk using clinical risk factors and also FRAX, Clinicians may also wish to refer for DXA. As a general principle if patients are below intervention threshold on FRAX, it is usually reasonable to stop treatment. In high risk patients considerations should be given to alternative treatments, and patients can be referred to the falls and bone health clinics for advice on the best course of action.
Teriparatide Teriparatide is recommended as an alternative, after Alendronate, risedronate and raloxifene have been considered, for the secondary prevention of osteoporotic fragility fractures in postmenopausal women:
- who are unable to take alendronate and either risedronate or etidronate, or have a contraindication to or are intolerant of alendronate and either risedronate or etidronate (as defined in section 2), or who have an insatisfactory response (as defined in section 3) to treatment with alendronate, risedronate or etidronate and
- who are 65 years or older and have a T-score of -4.0 SD or below, or a T-score of -3.5 SD or below plus more than two fractures, or who are aged 55 - 64 years and have a T-score of -4 SD or below plus more than 2 fractures.
NB. Teriparatide for the treatment of osteoporosis in men at increased risk of fragility fractures has a BLACK traffic light.
RED Teriparatide pre-filled pen 750microgram/3mL
Raloxifene Raloxifene is recommended as an alternative treatment option for the secondary prevention of osteoporotic fragility fractures in women:
- who are unable to comply with the special instructions for the adminstration of alendronate and either risedronate or etidronate, or have a contraindication to or are intolerant of alendronate and either risedronate or etidronate (as defined in section 3)
- who also have a combination T-score, age and number of independent clinical risk factors for fracture (see section 2) as indicated in the following table:
T-scores (SD) at (or below) which raloxifene is recommended when alendronate and either risedronate or etidronate cannot be taken
_a Treatment with raloxifene is not recommended.
1. If a woman aged 75 years or older who has one or more independent clinical risk factors for fracture or indicators of low BMD has not previously had her BMD measured, a DXA scan may not be required if the responsible clinical considers it to be clinically inappropriate or unfeasible.
2. For the purposes of this guidance, indicators of low BMD are low body mass index (defined as less than 22kg/m2), medical conditions such as ankylosing spondylitis, Chron's disease, conditions that result in prolonged immobility, and untreated premature menopause (rheumatoid arthritis is also a medical condition indicative of low BMD).
3. In deciding between strontium ranelate and raloxifene, clinicians and patients need to balance the overall proven effectiveness profile of these drugs against their tolerability and other effects in individual patients.
4. For the purposes of this guidance, independent clinical risk factors for fracture are parental history of hip fracture, alcohol intake of 4 or more units per day, and rheumatoid arthritis.
5. For the purposes of this guidance, intolerance of alendronate, risedronate or etidronate is defined as persistent upper gastrointestinal disturbance that is sufficiently severe to warrant discontinuation of treatment, and that occurs even though the instructions for administration have been followed correctly.
6.For the purposes of this guidance, intolerance of strontium ranelate is defined as persistent nausea or diarrhoea, either of which warrants discontinuation of treatment.
For the purposes of this guidance, an unsatisfactory response is defined as occurring when a woman has another fragility fracture despite adhering fully to treatment for 1 year and there is evidence of a decline in BMD below her pre-treatment baseline.