通用中文 | 氨吡啶缓释片 | 通用外文 | Fampridin |
品牌中文 | 品牌外文 | FAMPYRA | |
其他名称 | |||
公司 | Alkermes(Alkermes) | 产地 | 爱尔兰(Ireland) |
含量 | 10mg | 包装 | 56片/盒 |
剂型给药 | 片剂 口服 | 储存 | 室温 |
适用范围 | 多发性硬化症(MS) 慢性脊髓损伤 多发性硬化症 |
通用中文 | 氨吡啶缓释片 |
通用外文 | Fampridin |
品牌中文 | |
品牌外文 | FAMPYRA |
其他名称 | |
公司 | Alkermes(Alkermes) |
产地 | 爱尔兰(Ireland) |
含量 | 10mg |
包装 | 56片/盒 |
剂型给药 | 片剂 口服 |
储存 | 室温 |
适用范围 | 多发性硬化症(MS) 慢性脊髓损伤 多发性硬化症 |
部分中文氨吡啶处方资料(仅供参考)
英文名:fampridine
商品名:Fampyra
中文名:氨吡啶薄膜片
制造商:百健制药
药品简介:
近日,欧盟委员会(EC)已授予Fampyra(dalfampridine ER,氨吡啶缓释片)完全批准,用于多发性硬化症(MS)患者改善其行走能力。此次批准,是基于III期临床研究ENHANCE的数据,该研究证实了Fampyra长期治疗复发型和进展型多发性硬化症所提供的临床意义的受益和安全性。
药理作用
Fampyra是钾通道阻滞剂。通过阻断钾通道,Fampyra减少了离子电流通过这些通道的泄漏,从而延长了复极化,从而增强了脱髓鞘轴突和神经功能中动作电位的形成。据推测,通过增强动作电位的形成,可以在中枢神经系统中进行更多的冲动。
适应症
Fampyra可以改善患有多发性硬化症并伴有步行障碍的成年患者的步行(EDSS 4-7)。
用法与用量
推荐剂量为一粒10毫克片剂,每天两次,间隔12小时(早上一粒,晚上一粒)。不应将Fampyra施用的频率高于建议的剂量或剂量。
药片应不带食物服用。
开始和评估Fampyra治疗
•初始处方应限于治疗两到四周,因为通常应在开始使用Fampyra后的两到四周内确定临床益处
•评估步行能力,例如建议使用定时25英尺步行(T25FW)或十二项多发性硬化步行量表(MSWS-12)来评估两到四周内的改善情况。如果未观察到任何改善,则应停用Fampyra
•如果患者未报告获益,则应终止Fampyra。
重新评估Fampyra的治疗
如果观察到步行能力下降,医生应考虑中断治疗以重新评估Fampyra的益处(见上文)。重新评估应包括退出Fampyra并进行步行能力评估。如果患者不再获得步行补助,则应停止使用Fampyra。
剂量遗漏
应始终遵循通常的给药方案。如果错过剂量,则不应加倍剂量。
老年
开始使用Fampyra治疗之前,应检查老年人的肾功能。建议老年人监测肾功能以发现任何肾功能不全。
肾功能不全的患者
Fampyra是中度和重度肾功能不全(肌酐清除率<50ml/min)的患者的禁忌症。
肝功能不全的患者
肝功能不全的患者无需调整剂量。
小儿
Fampyra在0至18岁儿童中的安全性和疗效尚未确定。无可用数据。
给药方式
Fampyra供口服使用。
平板电脑必须完全吞下。切勿将其分开,压碎,溶解,吮吸或咀嚼。
禁忌症
对氟哌啶或列出的任何赋形剂超敏反应。
与其他含有fampridine(4-aminopyridine)的药物同时治疗。
有既往病史或当前发作的患者。
中度或重度肾功能不全(肌酐清除率<50 ml/min)的患者。
Fampyra与作为有机阳离子转运蛋白2(OCT2)抑制剂的医药产品(例如西咪替丁)同时使用。
保质期
3年。
首次打开瓶子后,请在7天内使用。
特殊的储存注意事项
储存在25°C以下。 将平板电脑存放在原始包装中,以避光和防潮。
容器的性质和内容
Fampyra以瓶装或泡罩包装形式提供。
瓶装
HDPE(高密度聚乙烯)瓶带聚丙烯盖,每个瓶装14片片剂和硅胶干燥剂。
包装大小为28(2瓶14瓶)片剂。
包装大小为56片(4瓶14片)。
泡罩包装
铝箔泡罩(铝/铝),每个泡罩托盘含14片药片。
包装大小为28(2水泡14)片。
包装大小为56(4水泡14)片。
部分中文氨吡啶处方资料(仅供参考)
英文名:fampridine
商品名:Fampyra
中文名:氨吡啶薄膜片
制造商:百健制药
药品简介:
近日,欧盟委员会(EC)已授予Fampyra(dalfampridine ER,氨吡啶缓释片)完全批准,用于多发性硬化症(MS)患者改善其行走能力。此次批准,是基于III期临床研究ENHANCE的数据,该研究证实了Fampyra长期治疗复发型和进展型多发性硬化症所提供的临床意义的受益和安全性。
药理作用
Fampyra是钾通道阻滞剂。通过阻断钾通道,Fampyra减少了离子电流通过这些通道的泄漏,从而延长了复极化,从而增强了脱髓鞘轴突和神经功能中动作电位的形成。据推测,通过增强动作电位的形成,可以在中枢神经系统中进行更多的冲动。
适应症
Fampyra可以改善患有多发性硬化症并伴有步行障碍的成年患者的步行(EDSS 4-7)。
用法与用量
推荐剂量为一粒10毫克片剂,每天两次,间隔12小时(早上一粒,晚上一粒)。不应将Fampyra施用的频率高于建议的剂量或剂量。
药片应不带食物服用。
开始和评估Fampyra治疗
•初始处方应限于治疗两到四周,因为通常应在开始使用Fampyra后的两到四周内确定临床益处
•评估步行能力,例如建议使用定时25英尺步行(T25FW)或十二项多发性硬化步行量表(MSWS-12)来评估两到四周内的改善情况。如果未观察到任何改善,则应停用Fampyra
•如果患者未报告获益,则应终止Fampyra。
重新评估Fampyra的治疗
如果观察到步行能力下降,医生应考虑中断治疗以重新评估Fampyra的益处(见上文)。重新评估应包括退出Fampyra并进行步行能力评估。如果患者不再获得步行补助,则应停止使用Fampyra。
剂量遗漏
应始终遵循通常的给药方案。如果错过剂量,则不应加倍剂量。
老年
开始使用Fampyra治疗之前,应检查老年人的肾功能。建议老年人监测肾功能以发现任何肾功能不全。
肾功能不全的患者
Fampyra是中度和重度肾功能不全(肌酐清除率<50ml/min)的患者的禁忌症。
肝功能不全的患者
肝功能不全的患者无需调整剂量。
小儿
Fampyra在0至18岁儿童中的安全性和疗效尚未确定。无可用数据。
给药方式
Fampyra供口服使用。
平板电脑必须完全吞下。切勿将其分开,压碎,溶解,吮吸或咀嚼。
禁忌症
对氟哌啶或列出的任何赋形剂超敏反应。
与其他含有fampridine(4-aminopyridine)的药物同时治疗。
有既往病史或当前发作的患者。
中度或重度肾功能不全(肌酐清除率<50 ml/min)的患者。
Fampyra与作为有机阳离子转运蛋白2(OCT2)抑制剂的医药产品(例如西咪替丁)同时使用。
保质期
3年。
首次打开瓶子后,请在7天内使用。
特殊的储存注意事项
储存在25°C以下。 将平板电脑存放在原始包装中,以避光和防潮。
容器的性质和内容
Fampyra以瓶装或泡罩包装形式提供。
瓶装
HDPE(高密度聚乙烯)瓶带聚丙烯盖,每个瓶装14片片剂和硅胶干燥剂。
包装大小为28(2瓶14瓶)片剂。
包装大小为56片(4瓶14片)。
泡罩包装
铝箔泡罩(铝/铝),每个泡罩托盘含14片药片。
包装大小为28(2水泡14)片。
包装大小为56(4水泡14)片。
1. NAME OF THE MEDICINAL PRODUCT
Fampyra 10 mg prolonged-release tablets
2. QUALITATIVE AND QUANTITATIVE COMPOSITION
Each prolonged-release tablet contains 10 mg of fampridine. For the full list of excipients, see section 6.1.
3. PHARMACEUTICAL FORM
Prolonged-release tablet.
An off-white, film coated, oval biconvex 13 x 8 mm tablet with flat edge debossed with A10 on one side.
4. CLINICAL PARTICULARS
4.1 Therapeutic indications
Fampyra is indicated for the improvement of walking in adult patients with multiple sclerosis with walking disability (EDSS 4-7).
4.2 Posology and method of administration
Treatment with Fampyra is restricted to prescription and supervision by physicians experienced in the management of MS.
Posology
The recommended dose is one 10 mg tablet, twice daily, taken 12 hours apart (one tablet in the morning and one tablet in the evening). Fampyra should not be administered more frequently or at higher doses than recommended (see section 4.4). The tablets should be taken without food
(see section 5.2).
Starting and Evaluating Fampyra Treatment
• Initial prescription should be limited to two to four weeks of therapy as clinical benefits should generally be identified within two to four weeks after starting Fampyra
• An assessment of walking ability, e.g. the Timed 25 Foot Walk (T25FW) or Twelve Item
Multiple Sclerosis Walking Scale (MSWS-12), is recommended to evaluate improvement
within two to four weeks. If no improvement is observed, Fampyra should be discontinued
• Fampyra should be discontinued if benefit is not reported by patients.
Re-Evaluating Fampyra Treatment
If decline in walking ability is observed, physicians should consider an interruption to treatment in order to reassess the benefits of Fampyra (see above). The re-evaluation should include withdrawal of Fampyra and performing an assessment of walking ability. Fampyra should be discontinued if patients no longer receive walking benefit.
Missed Dose
The usual dosing regimen should always be followed. A double dose should not be taken if a dose is missed.
Elderly
Renal function should be checked in the elderly before starting treatment with Fampyra. Monitoring renal function to detect any renal impairment is recommended in the elderly (see section 4.4).
Patients with renal impairment
Fampyra is contraindicated in patients with moderate and severe renal impairment (creatinine clearance <50 ml/min) (see sections 4.3 and 4.4).
Patients with hepatic impairment
No dose adjustment is required for patients with hepatic impairment.
Paediatric population
The safety and efficacy of Fampyra in children aged 0 to 18 years have not been established. No data are available.
Method of Administration
Fampyra is for oral use.
The tablet must be swallowed whole. It must not be divided, crushed, dissolved, sucked or chewed.
4.3 Contraindications
Hypersensitivity to fampridine or to any of the excipients listed in section 6.1.
Concurrent treatment with other medicinal products containing fampridine (4-aminopyridine). Patients with prior history or current presentation of seizure.
Patients with moderate or severe renal impairment (creatinine clearance <50 ml/min).
Concomitant use of Fampyra with medicinal products that are inhibitors of Organic Cation Transporter 2 (OCT2) for example, cimetidine.
4.4 Special warnings and precautions for use
Seizure risk
Treatment with fampridine increases seizure risk (see section 4.8).
Fampyra should be administered with caution in the presence of any factors which may lower seizure threshold.
Fampyra should be discontinued in patients who experience a seizure while on treatment. Renal impairment
Fampyra is primarily excreted unchanged by the kidneys. Patients with renal impairment have higher plasma concentrations which are associated with increased adverse reactions, in particular neurological effects. Determining renal function before treatment and its regular monitoring during treatment is recommended in all patients (particularly in the elderly in whom renal function might be reduced). Creatinine clearance can be estimated using the Cockroft-Gault formula.
Caution is required when Fampyra is prescribed in patients with mild renal impairment or in patients using medicinal products that are substrates of OCT2 for example, carvedilol, propranolol and metformin.
Hypersensitivity Reactions
In post-marketing experience, serious hypersensitivity reactions (including anaphylactic reaction) have been reported, the majority of these cases occurred within the first week of treatment. Particular attention should be given to patients with a previous history of allergic reactions. If an anaphylactic or other serious allergic reaction occurs, Fampyra should be discontinued and not restarted.
Other warnings and precautions
Fampyra should be administered with caution to patients with cardiovascular symptoms of rhythm and sinoatrial or atrioventricular conduction cardiac disorders (these effects are seen in overdose). There is limited safety information in these patients.
The increased incidence of dizziness and balance disorder seen with Fampyra may result in an increased risk of falls. Therefore, patients should use walking aids as needed.
In clinical studies low white blood cell counts were seen in 2.1% of Fampyra patients versus 1.9% of patients on placebo. Infections were seen in the clinical studies (see section 4.8) and increased infection rate and impairment of the immune response cannot be excluded.
4.5 Interaction with other medicinal products and other forms of interaction
Interaction studies have only been performed in adults.
Concurrent treatment with other medicinal products containing fampridine (4-aminopyridine) is contraindicated (see section 4.3).
Fampridine is eliminated mainly via the kidneys with active renal secretion accounting for about 60% (see section 5.2). OCT2 is the transporter responsible for the active secretion of fampridine. Thus, the concomitant use of fampridine with medicinal products that are inhibitors of OCT2 for example, cimetidine are contraindicated (see section 4.3) and concomitant use of fampridine with medicinal products that are substrates of OCT2 for example, carvedilol, propranolol and metformin is cautioned (see section 4.4.)
Interferon: fampridine has been administered concomitantly with interferon-beta and no pharmacokinetic medicinal product interactions were observed.
Baclofen: fampridine has been administered concomitantly with baclofen and no pharmacokinetic medicinal product interactions were observed.
4.6 Fertility, pregnancy and lactation
Pregnancy
There are limited amount of data from the use of fampridine in pregnant women.
Animal studies have shown reproductive toxicity (see section 5.3). As a precautionary measure it is preferable to avoid the use of Fampyra in pregnancy.
Breast-feeding
It is unknown whether fampridine is excreted in human or animal milk. Fampyra is not recommended during breast-feeding.
Fertility
In animal studies no effects on fertility were seen.
4.7 Effects on ability to drive and use machines
Fampyra has a moderate influence on the ability to drive and use machines because Fampyra can cause dizziness.
4.8 Undesirable effects
The safety of Fampyra has been evaluated in randomised controlled clinical studies, in open label long term studies and in the post marketing setting.
Adverse reactions identified are mostly neurological and include seizure, insomnia, anxiety, balance disorder, dizziness, paraesthesia, tremor, headache and asthenia. This is consistent with fampridine’s pharmacological activity. The highest incidence of adverse reactions identified from placebo- controlled trials in multiple sclerosis patients with Fampyra given at the recommended dose, are reported as urinary tract infection (in approximately 12% of patients).
Adverse reactions are presented below by system organ class and absolute frequency. Frequencies are defined as: very common (≥ 1/10); common (≥ 1/100 to < 1/10); uncommon (≥1/1,000 to <1/100); rare (≥1/10,000 to <1/1,000); very rare (<1/10,000); not known (cannot be estimated from the available data).
Within each frequency grouping, adverse reactions are presented in the order of decreasing seriousness.
MedDRA SOC |
Adverse Reaction |
Frequency category |
Infections and infestations |
Urinary tract infection1 |
Very Common |
Influenza1 |
Common |
|
Nasopharyngitis1 |
Common |
|
Viral infection1 |
Common |
|
Immune system disorders |
Anaphylaxis Angioedema Hypersensitivity |
Uncommon Uncommon Uncommon |
Psychiatric disorders |
Insomnia Anxiety |
Common Common |
Nervous system disorders |
Dizziness |
Common |
Headache |
Common |
|
Balance disorder |
Common |
|
Vertigo |
Common |
|
Paraesthesia |
Common |
|
Tremor |
Common |
|
Seizure 3 |
Uncommon |
|
Exacerbation of trigeminal |
Uncommon |
|
neuralgia |
||
Cardiac disorders |
Palpitations |
Common |
|
Tachycardia |
Uncommon |
Vascular disorders |
Hypotension2 |
Uncommon |
Respiratory, thoracic and mediastinal disorders |
Dyspnoea Pharyngolaryngeal pain |
Common Common |
Gastrointestinal disorders |
Nausea |
Common |
Vomiting |
Common |
|
Constipation |
Common |
|
Dyspepsia |
Common |
|
Skin and subcutaneous tissue disorders |
Rash Urticaria |
Uncommon Uncommon |
Musculoskeletal and connective tissue disorders |
Back pain |
Common |
General disorders and administration site conditions |
Asthenia Chest discomfort2 |
Common Uncommon |
1 See section 4.4
2 These symptoms were observed in the context of hypersensitivity
3 See sections 4.3 and 4.4
Description of selected adverse reactions
Hypersensitivity
In post-marketing experience, there have been reports of hypersensitivity reactions (including anaphylaxis) which have occurred with one or more of the following: dyspnoea, chest discomfort, hypotension, angioedema, rash and urticaria. For further information on hypersensitivity reactions, please refer to sections 4.3 and 4.4.
Reporting of suspected adverse reactions
Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via the national reporting system listed in Appendix V.
Symptoms
Acute symptoms of overdose with Fampyra were consistent with central nervous system excitation and included confusion, tremulousness, diaphoresis, seizure, and amnesia.
Central nervous system side effects at high doses of 4-aminopyridine include dizziness, confusion, seizures, status epilepticus, involuntary and choreoathetoid movements. Other side effects at high doses include cases of cardiac arrhythmias (for example, supraventricular tachycardia and bradycardia) and ventricular tachycardia as a consequence of potential QT prolongation. Reports of hypertension have also been received.
Management
Patients who overdose should be provided supportive care. Repeated seizure activity should be treated with benzodiazepine, phenytoin, or other appropriate acute anti-seizure therapy.
5. PHARMACOLOGICAL PROPERTIES
5.1 Pharmacodynamic properties
Pharmacotherapeutic group: Other nervous system drugs, ATC code: N07XX07. Pharmacodynamic effects
Fampyra is a potassium channel blocker. By blocking potassium channels, Fampyra reduces the leakage of ionic current through these channels, thereby prolonging repolarization and thus enhancing action potential formation in demyelinated axons and neurological function. Presumably, by enhancing action potential formation, more impulses might be conducted in the central nervous system.
Clinical efficacy and safety
Three phase III, randomised, double-blind, placebo controlled confirmatory studies, (MS-F203 and MS-F204 and 218MS305) have been performed. The proportion of responders was independent of concomitant immunomodulatory therapy (including interferons, glatiramer acetate, fingolimod and natalizumab). The Fampyra dose was 10 mg BID.
Studies MS-F203 and MS-F204
The primary endpoint in studies MS-F203 and MS-F204 was the responder rate in walking speed as measured by the Timed 25-foot Walk (T25FW). A responder was defined as a patient who consistently had a faster walking speed for at least three visits out of a possible four during the double blind period as compared to the maximum value among five off-treatment visits.
A significantly greater proportion of Fampyra treated patients were responders as compared to placebo (MS-F203: 34.8% vs. 8.3%, p<0.001; MS-F204: 42.9% vs. 9.3%, p<0.001).
Patients who responded to Fampyra increased their walking speed on average by 26.3% vs 5.3% on placebo (p<0.001) (MS-F203) and 25.3% vs 7.8% (p< 0.001) (MS-F204). The improvement appeared rapidly (within weeks) after starting Fampyra.
Statistically and clinically meaningful improvements in walking were seen, as measured by the 12- item Multiple Sclerosis Walking Scale.
Table 1: Studies MS-F203 and MS-F204
STUDY * |
MS-F203 |
MS-F204 |
|||
|
|
Placebo |
Fampyra 10 mg BID |
||
Placebo |
Fampyra 10 mg BID |
||||
n of subjects
Consistent improvement Difference CI95% P-value |
72 |
224
34.8% |
118
9.3% |
119
42.9% |
|
8.3% |
|||||
26.5% |
33.5% |
||||
17.6%, 35.4% |
23.2%, 43.9% |
||||
< 0.001 |
< 0.001 |
||||
≥20% improvement |
11.1% |
31.7% |
15.3% |
34.5% |
|
Difference |
|
20.6% |
|
19.2% |
|
CI95% |
|
11.1%,30.1% |
|
8.5%,29.9% |
|
P-value |
<0.001 |
<0.001 |
|||
Walking speed Feet/sec Baseline Endpoint Change Difference p-value Average % Change Difference p-value MSWS-12-score (mean, sem) Baseline Average change Difference p-value LEMMT (mean, sem) (Lower Extremity Manual Muscle Test) Baseline Average change Difference p-value Ashworth Score (A test for muscle spasticity) Baseline Average change Difference p-value |
Ft per sec
2.04 2.15 0.11 |
Ft per sec
2.02 2.32 0.30 |
Ft per sec
2.21 2.39 0.18 |
Ft per sec
2.12 2.43 0.31 |
|
0.19 |
0.12 |
||||
0.010 |
0.038 |
||||
5.24 13.88 |
7.74 14.36 |
||||
8.65 |
6.62 |
||||
< 0.001 |
0.007 |
||||
69.27 (2.22) 71.06 (1.34) |
67.03 (1.90) 73.81 (1.87) |
||||
-0.01 (1.46) -2.84 (0.878) |
0.87 (1.22) -2.77 (1.20) |
||||
2.83 |
3.65 |
||||
0.084 |
0.021 |
||||
3.92 (0.070) 4.01 (0.042) |
4.01 (0.054) 3.95 (0.053) |
||||
0.05 (0.024) 0.13 (0.014) |
0.05 (0.024) 0.10 (0.024) |
||||
0.08 |
0.05 |
||||
0.003 |
0.106 |
||||
0.98 (0.078) 0.95 (0.047) |
0.79 (0.058) 0.87 (0.057) |
||||
-0.09 (0.037) -0.18 (0.022) |
-0.07 (0.033) -0.17 (0.032) |
||||
0.10 |
0.10 |
||||
0.021 |
0.015 |
Study 218MS305
Study 218MS305 was conducted in 636 subjects with multiple sclerosis and walking disability. Duration of double-blind treatment was 24 weeks with a 2 week post–treatment follow-up. The primary endpoint was improvement in walking ability, measured as the proportion of patients achieving a mean improvement of ≥ 8 points from baseline MSWS-12 score over 24 weeks. In this
study there was a statistically significant treatment difference, with a greater proportion of Fampyra treated patients demonstrating an improvement in walking ability, compared to placebo-controlled patients (relative risk of 1.38 (95% CI: [1.06, 1.70]). Improvements generally appeared within 2 to 4 weeks of initiation of treatment, and disappeared within 2 weeks of treatment cessation.
Fampyra treated patients also demonstrated a statistically significant improvement in the Timed Up and Go (TUG) test, a measure of static and dynamic balance and physical mobility. In this secondary endpoint, a greater proportion of Fampyra treated patients achieved ≥ 15% mean improvement from baseline TUG speed over a 24 week period, compared to placebo. The difference in the Berg Balance Scale (BBS; a measure of static balance), was not statistically significant.
In addition, patients treated with Fampyra demonstrated a statistically significant mean improvement from baseline compared to placebo in the Multiple Sclerosis Impact Scale (MSIS-29) physical score (LSM difference -3.31, p<0.001).
Table 2: Study 218MS305
Over 24 weeks |
Placebo N = 318* |
Fampyra 10 mg BID N = 315* |
Difference (95% CI) p - value |
Proportion of patients with mean improvement of ≥ 8 points from baseline MSWS-12 score |
34% |
43% |
Risk difference: 10.4% (3% ; 17.8%) 0.006 |
MSWS-12 score |
65.4 |
63.6 |
LSM: -4.14 |
Baseline |
(-6.22 ; -2.06) |
||
Improvement from |
-2.59 |
-6.73 |
<0.001 |
baseline |
|||
TUG Proportion of patients with mean improvement of ≥ 15% in TUG speed |
35% |
43% |
Risk difference: 9.2% (0.9% ; 17.5%) 0.03 |
TUG |
27.1 |
24.9 |
LSM: -1.36 |
Baseline |
(-2.85 ; 0.12) |
||
Improvement from |
-1.94 |
-3.3 |
0.07 |
baseline (sec) |
|||
MSIS-29 physical score |
55.3 |
52.4 |
LSM: -3.31 |
Baseline |
-4.68 |
-8.00 |
(-5.13 ; -1.50) |
Improvement from |
<0.001 |
||
baseline |
|||
BBS score |
40.2 |
40.6 |
LSM: 0.41 |
Baseline |
(-0.13 ; 0.95) |
||
Improvement from |
1.34 |
1.75 |
0.141 |
baseline |
*Intent to treat population = 633; LSM = Least square mean
The European Medicines Agency has waived the obligation to submit the results of studies with Fampyra in all subsets of the paediatric population in treatment of multiple sclerosis with walking disability (see section 4.2 for information on paediatric use).
5.2 Pharmacokinetic properties
Absorption:
Orally administered fampridine is rapidly and completely absorbed from the gastrointestinal tract. Fampridine has a narrow therapeutic index. Absolute bioavailability of Fampyra prolonged-release tablets has not been assessed, but relative bioavailability (as compared to an aqueous oral solution) is 95%. The Fampyra prolonged-release tablet has a delay in the absorption of fampridine manifested by slower rise to a lower peak concentration, without any effect on the extent of absorption.
When Fampyra tablets are taken with food, the reduction in the area under the plasma concentration- time curve (AUC0-∞) of fampridine is approximately 2-7% (10 mg dose). The small reduction in AUC is not expected to cause a reduction in the therapeutic efficacy. However, Cmax increases by 15-23%. Since there is a clear relationship between Cmax and dose related adverse reactions, it is recommended to take Fampyra without food (see section 4.2).
Distribution:
Fampridine is a lipid-soluble medicinal product which readily crosses the blood-brain barrier. Fampridine is largely unbound to plasma proteins (bound fraction varied between 3-7% in human plasma). Fampridine has a volume of distribution of approximately 2.6 l/kg.
Fampridine is not a substrate for P-glycoprotein.
Biotransformation:
Fampridine is metabolised in humans by oxidation to 3-hydroxy-4-aminopyridine and further conjugated to the 3-hydroxy-4-aminopyridine sulfate. No pharmacological activity was found for the fampridine metabolites against selected potassium channels in vitro.
The 3-hydroxylation of fampridine to 3-hydroxy-4-aminopyridine by human liver microsomes appeared to be catalyzed by Cytochrome P450 2E1 (CYP2E1).
There was evidence of direct inhibition of CYP2E1 by fampridine at 30 μM (approximately 12% inhibition) which is approximately 100 times the average plasma fampridine concentration measured for the 10 mg tablet.
Treatment of cultured human hepatocytes with fampridine had little or no effect on induction of CYP1A2, CYP2B6, CYP2C9, CYP2C19, CYP2E1 or CYP3A4/5 enzyme activities.
Elimination:
The major route of elimination for fampridine is renal excretion, with approximately 90% of the dose recovered in urine as parent medicinal product within 24 hours. Renal clearance (CLR 370 ml/min) is substantially greater than glomerular filtration rate due to combined glomerular filtration and active excretion by the renal OCT2 transporter. Faecal excretion accounts for less than 1% of the administered dose.
Fampyra is characterized by linear (dose-proportional) pharmacokinetics with a terminal elimination half-life of approximately 6 hours. The maximum plasma concentration (Cmax) and, to a smaller extent, area under the plasma concentration-time curve (AUC) increase proportionately with dose. There is no evidence of clinically relevant accumulation of fampridine taken at the recommended dose in patients with full renal function. In patients with renal impairment, accumulation occurs relative to the degree of impairment.
Special Populations
Elderly:
Fampyra is primarily excreted unchanged by the kidneys, and with creatinine clearance known to decrease with age, monitoring of renal function in elderly patients is recommended (see section 4.2).
Paediatric Population:
No data are available.
Patients with renal impairment:
Fampridine is eliminated primarily by the kidneys as unchanged medicinal product and therefore renal function should be checked in patients where renal function might be compromised. Patients with mild renal impairment can be expected to have approximately 1.7 to 1.9 times the fampridine concentrations achieved by patients with normal renal function. Fampyra must not be administered to patients with moderate and severe renal impairment (see sections 4.3 and 4.4).
5.3 Preclinical safety data
Fampridine was studied in oral repeat dose toxicity studies in several animal species.
Adverse responses to orally administered fampridine were rapid in onset, most often occurring within the first 2 hours post-dose. Clinical signs evident after large single doses or repeated lower doses were similar in all species studied and included tremors, convulsions, ataxia, dyspnoea, dilated pupils, prostration, abnormal vocalization, increased respiration, and excess salivation. Gait abnormalities and hyper-excitability were also observed. These clinical signs were not unexpected and represent exaggerated pharmacology of fampridine. In addition, single cases of fatal urinary tract obstructions were observed in rats. The clinical relevance of these findings remains to be elucidated, but a causal relationship with fampridine treatment cannot be excluded.
In reproduction toxicity studies in rats and rabbits, decreased weight and viability of foetuses and offspring were observed at maternally toxic doses. However, no increased risk for malformations or adverse effects on fertility was noted.
In a battery of in vitro and in vivo studies fampridine did not show any potential to be mutagenic, clastogenic or carcinogenic.
6. PHARMACEUTICAL PARTICULARS
6.1 List of excipients
Tablet core:
Hypromellose Microcrystalline cellulose Silica, colloidal anhydrous Magnesium stearate
Film-coat:
Hypromellose
Titanium dioxide (E-171) Polyethylene glycol 400
6.2 Incompatibilities
Not applicable.
3 years.
After first opening a bottle, use within 7 days.
6.4 Special precautions for storage
Store below 25°C. Store the tablets in the original packaging in order to protect from light and moisture.
6.5 Nature and contents of container
Fampyra is supplied in either bottles or blister packs.
Bottles
HDPE (high-density polyethylene) bottle with polypropylene caps, each bottle contains 14 tablets and a silica gel desiccant.
Pack size of 28 (2 bottles of 14) tablets.
Pack size of 56 (4 bottles of 14) tablets.
Blister packs
Foil blisters (aluminium / aluminium), each blister tray contains 14 tablets. Pack size of 28 (2 blisters of 14) tablets.
Pack size of 56 (4 blisters of 14) tablets.
Not all pack sizes may be marketed.
6.6 Special precautions for disposal
No special requirements.
7. MARKETING AUTHORISATION HOLDER
Biogen Netherlands B.V. Prins Mauritslaan 13
1171 LP Badhoevedorp The Netherlands
8. MARKETING AUTHORISATION NUMBER(S)
EU/1/11/699/001 EU/1/11/699/002 EU/1/11/699/003 EU/1/11/699/004
9. DATE OF FIRST AUTHORISATION/RENEWAL OF THE AUTHORISATION
Date of first authorisation: 20 July 2011 Date of latest renewal: 18 May 2017
10. DATE OF REVISION OF THE TEXT
Detailed information on this medicine is available on the European Medicines Agency website: https://www.ema.europa.eu
ANNEX II
A. MANUFACTURERS(S) RESPONSIBLE FOR BATCH RELEASE
B. CONDITIONS OR RESTRICTIONS REGARDING SUPPLY AND USE
C. OTHER CONDITIONS AND REQUIREMENTS OF THE MARKETING AUTHORISATION
D. CONDITIONS OR RESTRICTIONS WITH REGARD TO THE SAFE AND EFFECTIVE USE OF THE MEDICINAL PRODUCT
A. MANUFACTURER(S) RESPONSIBLE FOR BATCH RELEASE
Name and address of the manufacturers responsible for batch release
Alkermes Pharma Ireland Ltd Monksland
Athlone, Co. Westmeath Ireland
The printed package leaflet of the medicinal product must state the name and address of the manufacturer responsible for the release of the concerned batch.
B. CONDITIONS OR RESTRICTIONS REGARDING SUPPLY AND USE
Medicinal product subject to restricted medical prescription (See Annex I: Summary of Product Characteristics, section 4.2)
C. OTHER CONDITIONS AND REQUIREMENTS OF THE MARKETING AUTHORISATION
• Periodic safety update reports (PSURs)
The requirements for submission of PSURs for this medicinal product are set out in the list of Union reference dates (EURD list) provided for under Article 107c(7) of Directive 2001/83/EC and any subsequent updates published on the European medicines web-portal.
D. CONDITIONS OR RESTRICTIONS WITH REGARD TO THE SAFE AND EFFECTIVE USE OF THE MEDICINAL PRODUCT
• Risk management plan (RMP)
The marketing authorisation holder (MAH) shall perform the required pharmacovigilance activities and interventions detailed in the agreed RMP presented in Module 1.8.2 of the marketing authorisation and any agreed subsequent updates of the RMP.
An updated RMP should be submitted:
• At the request of the European Medicines Agency;
• Whenever the risk management system is modified, especially as the result of new information
being received that may lead to a significant change to the benefit/risk profile or as the result of
an important (pharmacovigilance or risk minimisation) milestone being reached.
ANNEX III
LABELLING AND PACKAGE LEAFLET
PARTICULARS TO APPEAR ON THE OUTER PACKAGING
BOTTLE CARTON
1. NAME OF THE MEDICINAL PRODUCT
Fampyra 10 mg prolonged-release tablets fampridine
2. STATEMENT OF ACTIVE SUBSTANCE(S)
Each tablet contains 10 mg of fampridine.
3. LIST OF EXCIPIENTS
4. PHARMACEUTICAL FORM AND CONTENTS
28 prolonged-release tablets (2 bottles of 14 tablets each)
56 prolonged-release tablets (4 bottles of 14 tablets each)
5. METHOD AND ROUTE(S) OF ADMINISTRATION
For oral use.
Read the package leaflet before use.
6. SPECIAL WARNING THAT THE MEDICINAL PRODUCT MUST BE STORED OUT OF THE SIGHT AND REACH OF CHILDREN
Keep out of the sight and reach of children.
7. OTHER SPECIAL WARNING(S), IF NECESSARY
8. EXPIRY DATE
EXP
After first opening a bottle, use within 7 days.
9. SPECIAL STORAGE CONDITIONS
Store below 25°C. Store the tablets in the original bottle in order to protect from light and moisture.
11. NAME AND ADDRESS OF THE MARKETING AUTHORISATION HOLDER
Biogen Netherlands B.V. Prins Mauritslaan 13
1171 LP Badhoevedorp
The Netherlands
12. MARKETING AUTHORISATION NUMBER(S)
EU/1/11/699/001 28 tablets
EU/1/11/699/002 56 tablets
13. BATCH NUMBER
Lot
14. GENERAL CLASSIFICATION FOR SUPPLY
Medicinal product subject to medical prescription.
15. INSTRUCTIONS ON USE
16. INFORMATION IN BRAILLE
Fampyra
17. UNIQUE IDENTIFIER – 2D BARCODE
2D barcode carrying the unique identifier included.
18. UNIQUE IDENTIFIER - HUMAN READABLE DATA
PC SN NN
BOTTLE LABEL
1. NAME OF THE MEDICINAL PRODUCT AND ROUTE(S) OF ADMINISTRATION
Fampyra 10 mg prolonged-release tablets fampridine
Oral use
2. METHOD OF ADMINISTRATION
3. EXPIRY DATE
EXP
After first opening a bottle, use within 7 days.
4. BATCH NUMBER
Lot
5. CONTENTS BY WEIGHT, BY VOLUME OR BY UNIT
14 prolonged-release tablets
6. OTHER
PARTICULARS TO APPEAR ON THE OUTER PACKAGING
BLISTER CARTON
1. NAME OF THE MEDICINAL PRODUCT
Fampyra 10 mg prolonged-release tablets fampridine
2. STATEMENT OF ACTIVE SUBSTANCE(S)
Each tablet contains 10 mg of fampridine.
3. LIST OF EXCIPIENTS
4. PHARMACEUTICAL FORM AND CONTENTS
28 prolonged-release tablets (2 blisters of 14 tablets each)
56 prolonged-release tablets (4 blisters of 14 tablets each)
5. METHOD AND ROUTE(S) OF ADMINISTRATION
For oral use.
Read the package leaflet before use.
6. SPECIAL WARNING THAT THE MEDICINAL PRODUCT MUST BE STORED OUT OF THE SIGHT AND REACH OF CHILDREN
Keep out of the sight and reach of children.
7. OTHER SPECIAL WARNING(S), IF NECESSARY
8. EXPIRY DATE
EXP
9. SPECIAL STORAGE CONDITIONS
Store below 25°C. Store the tablets in the original packaging in order to protect from light and moisture.
11. NAME AND ADDRESS OF THE MARKETING AUTHORISATION HOLDER
Biogen Netherlands B.V. Prins Mauritslaan 13
1171 LP Badhoevedorp
The Netherlands
12. MARKETING AUTHORISATION NUMBER(S)
EU/1/11/699/003 28 tablets
EU/1/11/699/004 56 tablets
13. BATCH NUMBER
Lot
14. GENERAL CLASSIFICATION FOR SUPPLY
Medicinal product subject to medical prescription.
15. INSTRUCTIONS ON USE
16. INFORMATION IN BRAILLE
Fampyra
17. UNIQUE IDENTIFIER – 2D BARCODE
2D barcode carrying the unique identifier included.
18. UNIQUE IDENTIFIER - HUMAN READABLE DATA
PC SN NN
BLISTERS
1. NAME OF THE MEDICINAL PRODUCT
Fampyra 10 mg prolonged-release tablets fampridine
2. NAME OF THE MARKETING AUTHORISATION HOLDER
Biogen Netherlands B.V.
3. EXPIRY DATE
EXP
4. BATCH NUMBER
Lot
5. OTHER
leave 12 hours between each tablet
Mon. Tue. Wed. Thu. Fri. Sat. Sun.
Package leaflet: information for the user
Fampyra 10mg prolonged-release tablets
fampridine
Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
• Keep this leaflet. You may need to read it again.
• If you have any further questions, ask your doctor or pharmacist.
• This medicine has been prescribed for you only. Do not pass it on to others. It may harm them,
even if their signs of illness are the same as yours.
• If you get any side effects, talk to your doctor or pharmacist. This includes any possible side
effects not listed in this leaflet. See section 4.
What is in this leaflet:
1. What Fampyra is and what it is used for
2. What you need to know before you take Fampyra
3. How to take Fampyra
4. Possible side effects
5. How to store Fampyra
6. Contents of the pack and other information
1. What Fampyra is and what it is used for
Fampyra is a medicine used to improve walking in adults (18 years and over) with Multiple Sclerosis (MS) related walking disability. In multiple sclerosis, inflammation destroys the protective sheath around the nerves leading to muscle weakness, muscle stiffness and difficulty walking.
Fampyra contains the active substance fampridine which belongs to a group of medicines called potassium channel blockers. They work by stopping potassium leaving the nerve cells which have been damaged by MS. This medicine is thought to work by letting signals pass down the nerve more normally, which allows you to walk better.
2. What you need to know before you take Fampyra Do not take Fampyra
– if you are allergic to fampridine or any of the other ingredients of this medicine (listed in section 6)
– if you have a seizure or have ever had a seizure (also referred to as a fit or convulsion)
– if your doctor or nurse has told you that you have moderate or severe kidney problems
– if you are taking a medicine called cimetidine
– if you are taking any other medicine containing fampridine. This may increase your risk of serious side effects
Tell your doctor and do not take Fampyra if any of these apply to you.
Warnings and precautions
Talk to your doctor or pharmacist before taking Fampyra:
– if you feel aware of your heartbeat (palpitations)
– if you are prone to infections
– you should use a walking aid, such as a cane, as needed because this medicine may make you feel dizzy or unsteady this may result in an increased risk of falls
– if you have any factors or are taking any medicine which affects your risk of fits (seizure).
– If you have been told by a doctor that you have mild problems with your kidneys
Tell your doctor before you take Fampyra if any of these apply to you.
Children and in adolescents
Do not give Fampyra to children or adolescents under the age of 18 years.
Elderly
Before starting treatment and during treatment your doctor may check that your kidneys are working properly.
Other medicines and Fampyra
Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines.
Do not take Fampyra if you are taking any other medicine containing fampridine. Other medicines that affect the kidneys
Your doctor will be especially careful if fampridine is given at the same time as any medicine which may affect how your kidneys eliminate medicines for example carvedilol, propranolol and metformin.
Fampyra with food and drink
Fampyra should be taken without food, on an empty stomach.
Pregnancy and breast-feeding
If you are pregnant, or are planning to become pregnant, tell your doctor before you take Fampyra Fampyra is not recommended during pregnancy.
Your doctor will consider the benefit of you being treated with Fampyra against the risk to your baby.
You should not breast-feed whilst taking this medicine.
Driving and using machines
Fampyra may have an effect on people’s ability to drive or use machines, it can cause dizziness. Make sure you’re not affected before you start driving or use machinery.
3. How to take Fampyra
Always take this medicine exactly as your doctor has told you. Check with your doctor or pharmacist if you are not sure. Fampyra is only available by prescription and under the supervision of doctors experienced in MS.
Your doctor will give you an initial prescription for 2 to 4 weeks. After 2 to 4 weeks the treatment will be reassessed.
One tablet in the morning and one tablet in the evening (12 hours apart). Do not take more than two tablets in a day. You must leave 12 hours between each tablet. Do not take the tablets more often than every 12 hours.
Swallow each tablet whole, with a drink of water. Do not divide, crush, dissolve, suck or chew the tablet. This may increase your risk of side effects.
If your Fampyra is supplied in bottles, the bottle will also contain a desiccant. Leave the desiccant in the bottle, do not swallow it.
If you take more Fampyra than you should
Contact your doctor immediately if you take too many tablets. Take the Fampyra box with you if you go to see the doctor.
In overdose you may notice sweating, minor shaking (tremor), dizziness, confusion, memory loss (amnesia) and fits (seizure). You may also notice other effects not listed here.
If you forget to take Fampyra
If you forget to take a tablet, do not take two tablets at once to make up for a missed dose. You must
always leave 12 hours between each tablet.
If you have any further questions on the use of this medicine, ask your doctor or pharmacist.
4. Possible side effects
Like all medicines, this medicine can cause side effects, although not everybody gets them.
If you have a seizure, stop taking Fampyra and tell your doctor immediately.
If you experience one or more of the following allergic (hypersensitivity) symptoms: swollen face, mouth, lips, throat or tongue, reddening or itching of the skin, chest tightness and breathing problems stop taking Fampyra and see your doctor immediately.
Side effects are listed below by frequency:
Very Common side effects
May affect more than 1 in 10 people:
• Urinary tract infection
May affect up to 1 in 10 people:
• Feeling unsteady
• Dizziness
• Spinning sensation (vertigo)
• Headache
• Feeling weak and tired
• Difficulty sleeping
• Anxiety
• Minor shaking (tremor)
• Numbness or tingling of skin
• Sore throat
• Common cold (nasopharyngitis)
• Flu (influenza)
• Difficulty breathing (shortness of breath)
• Feeling sick (nausea)
• Being sick (vomiting)
• Constipation
• Upset stomach
• Back pain
• Heartbeat that you can feel (palpitations)
Uncommon side effects
May affect up to 1 in 100 people
• Fits (seizure)
• Allergic reaction (hypersensitivity)
• Worsening of nerve pain in the face (trigeminal neuralgia)
• Fast heart rate (tachycardia)
Reporting of side effects
If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the national reporting system listed in Appendix V. By reporting side effects you can help provide more information on the safety of this medicine.
5. How to store Fampyra
Keep this medicine out of the sight and reach of children.
Do not use this medicine after the expiry date which is stated on the packaging after EXP. The expiry date refers to the last day of that month.
Store below 25°C. Store the tablets in the original packaging in order to protect from light and moisture.
If your Fampyra is supplied in bottles, only one bottle should be opened at a time. After first opening use within 7 days.
Do not throw away any medicines via waste water or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help to protect the environment.
You can get a larger print version of this leaflet by calling the local representatives (see list below).
What Fampyra contains
– The active substance is fampridine.
– Each prolonged-release tablet contains 10 mg of fampridine
– The other ingredients are:– Tablet core: hypromellose, microcrystalline cellulose, silica colloidal anhydrous, magnesium stearate; film coat: hypromellose, titanium dioxide (E-171), polyethylene glycol 400
What Fampyra looks like and contents of the pack
Fampyra is an off-white, film coated, oval biconvex 13 x 8 mm prolonged-release tablet with A10 on one side.
Fampyra is supplied in either blister packs or bottles.
Bottles
Fampyra comes in HDPE (high-density polyethylene) bottles. Each bottle contains 14 tablets and a silica gel desiccant. Each pack contains 28 tablets (2 bottles) or 56 tablets (4 bottles).
Blister packs
Fampyra comes in foil blisters of 14 tablets each. Each pack contains 28 tablets (2 blisters) or 56 tablets (4 blisters).
Not all pack sizes may be marketed.
Marketing Authorisation Holder and Manufacturer
Marketing Authorisation Holder:
Biogen Netherlands B.V. Prins Mauritslaan 13
1171 LP Badhoevedorp The Netherlands
Manufacturer:
Alkermes Pharma Ireland Ltd, Monksland, Athlone, Co. Westmeath, Ireland
For any information about this medicine, please contact the local representative of the Marketing Authorisation Holder:
België/Belgique/Belgien Biogen Belgium N.V./S.A. Tél/Tel: +32 2 219 12 18 |
Lietuva Biogen Lithuania UAB Tel: +37 0 5 259 6176 |
България ТП ЕВОФАРМА Teл.: +359 2 962 12 00 |
Luxembourg/Luxemburg Biogen Belgium N.V./S.A. Tél/Tel: +32 2 219 12 18 |
Česká republika Biogen (Czech Republic) s.r.o. Tel: +420 255 706 200 |
Magyarország Biogen Hungary Kft. Tel.: +36 (1) 899 9883 |
Danmark Biogen (Denmark) A/S Tlf: +45 77 41 57 57 |
Malta Pharma MT limited Tel: +356 213 37008/9 |
Deutschland Biogen GmbH Tel: +49 (0) 89 99 6170 |
Nederland Biogen Netherlands B.V. Tel: +31 20 542 2000 |
Eesti Biogen Estonia OÜ Tel: +372 618 9551 |
Norge Biogen Norway AS Tlf: +47 23 40 01 00 |
Ελλάδα Genesis Pharma SA Τηλ: +30 210 8771500 |
Österreich Biogen Austria GmbH Tel: +43 1 484 46 13 |
España Biogen Spain SL Tel: +34 91 310 7110 |
Polska Biogen Poland Sp. z o.o. Tel.: +48 22 351 51 00 |
France Biogen France SAS Tél: +33 (0)1 41 37 95 95 |
Portugal Biogen Portugal Sociedade Farmacêutica Unipessoal, Lda Tel: +351 21 318 8450 |
Hrvatska Biogen Pharma d.o.o. Tel: +385 (0) 1 775 73 22 |
România Johnson & Johnson Romania S.R.L. Tel: +40 21 207 18 00 |
Ireland Biogen Idec (Ireland) Ltd. Tel: +353 (0)1 463 7799 |
Slovenija Biogen Pharma d.o.o. Tel: +386 1 511 02 90 |
Ísland Icepharma hf Sími: +354 540 8000 |
Slovenská republika Biogen Slovakia s.r.o. Tel: +421 2 323 340 08 |
Italia Biogen Italia s.r.l. Tel: +39 02 584 9901 |
Suomi/Finland Biogen Finland Oy Puh/Tel: +358 207 401 200 |
Genesis Pharma (Cyprus) Ltd
Τηλ: +357 22 765740
Biogen Sweden AB Tel: +46 8 594 113 60
Biogen Latvia SIA Tel: +371 68 688 158
Biogen Idec Limited
Tel: +44 (0) 1628 50 1000
This leaflet was last revised in
Detailed information on this medicine is available on the European Medicines Agency web site: