Summary of the safety profileSupportive safety data were obtained from 33 clinical studies that included 1,555 patients exposed toeculizumab in complement-mediated disease populations, including PNH, aHUS, refractory gMG and
NMOSD. The most common adverse reaction was headache, (occurred mostly in the initial phase ofdosing), and the most serious adverse reaction was meningococcal infection.
Tabulated list of adverse reactionsTable 1 gives the adverse reactions observed from spontaneous reporting and in eculizumab completedclinical trials, including PNH, aHUS, refractory gMG and NMOSD studies. Adverse reactions reported ata very common (≥1/10), common (≥1/100 to <1/10), uncommon (≥1/1 000 to <1/100) or rare (≥1/10000 to <1/1 000) frequency with eculizumab, are listed by system organ class and preferred term. Withineach frequency grouping, adverse reactions are presented in order of decreasing seriousness.
Table 1: Adverse Reactions reported in eculizumab clinical trials, including patients with PNH,aHUS, refractory gMG and NMOSD as well as from postmarketing experience
MedDRA System Very Common Uncommon Rare
Organ Class Common (≥1/100 to <1/10) (≥1/1 000 to <1/100) (≥1/10000 to <1/1000)(≥1/10)
Infection and Pneumonia, Upper Meningococcal Aspergillus infectionc,infestations respiratory tract infectionb, Sepsis, Arthritis bacterialc,infection, Septic shock, Genitourinary tract
Bronchitis, Peritonitis, Lower gonococcal infection,
Nasopharyngitis, respiratory tract Haemophilus infection,
Urinary tract infection, Fungal Impetigoinfection, Oral infection, Viral
Herpes infection, Abscessa,
Cellulitis, Influenza,
Gastrointestinalinfection, Cystitis,
Infection, Sinusitis,
Gingivitis
Neoplasms benign, Malignant melanoma,malignant and Myelodysplastic syndromeunspecified(including cysts andpolyps)
Blood and lymphatic Leukopenia, Thrombocytopenia, Haemolysis*, Abnormalsystem disorders Anaemia Lymphopenia clotting factor, Red bloodcell agglutination,
CoagulopathyImmune system Anaphylactic reaction,disorders Hypersensitivity
Endocrine disorders Grave’s disease
Metabolism and Decreased appetitenutrition disorders
Psychiatric disorders Insomnia Depression, Anxiety, Abnormal dreams
Mood swings, Sleepdisorder
Nervous system Headache D izziness Paraesthesia, Tremor,disorders Dysgeusia, Syncope
Eye disorders Vision blurred Conjunctival irritation
Ear and labyrinth Tinnitus, Vertigodisorders
Cardiac disorders Palpitation
Vascular disorders Hypertension Accelerated Haematomahypertension,
Hypotension, Hotflush, Vein disorder
Respiratory, Cough, Dyspnoea, Epistaxis,thoracic and Oropharyngeal pain Throat irritation, Nasalmediastinal congestion,disorders Rhinorrhoea
Gastrointestinal Diarrhoea, Constipation, Gastroesophageal refluxdisorders Vomiting, Nausea, Dyspepsia, Abdominal disease, Gingival pain
Abdominal pain distension
Hepatobiliary Jaundicedisorders
Skin and Rash, Pruritus, Urticaria, Erythema, Skin depigmentationsubcutaneous tissue Alopecia Petechiae,disorders
Hyperhidrosis, Dryskin, Dermatitis
Musculoskeletal and Arthralgia, Myalgia, Muscle spasms, Bone Trismus, Joint swellingconnective tissue Pain in extremity pain, Back pain, Neckdisorders pain
Renal and urinary Renal impairment,disorders Dysuria, Haematuria
Reproductive system Spontaneous penile Menstrual disorderand breast disorders erection
General disorders Pyrexia, Fatigue, Edema, Chest Extravasation, Infusion siteand administration Influenza-like discomfort, Asthenia, paraesthesia, Feeling hotsite conditions illness Chest pain, Infusionsite pain, Chills
Investigations Alanine Coombs test positivecaminotransferaseincreased, Aspartateaminotransferaseincreased, Gamma-glutamyltransferaseincreased, Haematocritdecreased,
Haemoglobindecreased
Injury, poisoning Infusion-relatedand procedural reactioncomplication
Included Studies: Asthma (C07-002), aHUS(C08-002, C08-003, C10-003, C10-004), Dermatomyositis (C99-006),refractory gMG (C08-001, ECU-MG-301, ECU-MG-302, ECU-MG-303), Neuromyelitis Optica Spectrum Disorder(ECU-NMO-301, ECU-NMO-302), IMG (C99-004, E99-004), PNH (C02-001, C04-001, C04-002, C06-002, C07-001, E02-001, E05-001, E07-001, M07-005, X03-001, X03-001A), Psoriasis (C99-007), RA (C01-004, C97-001,
C99-001, E01-004, E99-001), STEC-HUS (C11-001), SLE (C97-002). MedDRA version 26.1.
*See paragraph Description of selected adverse reactions.a Abscess includes the following group of PTs: Abscess limb, Colonic abscess, Renal abscess, Subcutaneous abscess,
Tooth abscess, Liver abscess, Perirectal abscess, Rectal abscess.b Meningococcal infection includes the following group of PTs: Meningococcal infection, Meningococcal sepsis,
Meningitis meningococcal.cADRs identified in postmarketing reports
Description of selected adverse reactionsIn all clinical studies, the most serious adverse reaction was meningococcal sepsis which is a commonpresentation of meningococcal infections in patients treated with Soliris (see section 4.4).
Other cases of Neisseria species have been reported including sepsis with Neisseria gonorrhoeae,
Neisseria sicca/subflava, Neisseria spp unspecified.
Antibodies to Soliris were detected in 2% of patients with PNH using an ELISA assay, 3% of patientswith aHUS and 2% of patients with NMOSD using the ECL bridging format assay. In refractory gMGplacebo-controlled studies, no antidrug antibodies were observed. As with all proteins there is a potentialfor immunogenicity.
Cases of haemolysis have been reported in the setting of missed or delayed Soliris dose in PNH clinicaltrials (see also Section 4.4).
Cases of thrombotic microangiopathy complication have been reported in the setting of missed or delayed
Soliris dose in aHUS clinical trials (see also Section 4.4).
Paediatric populationIn children and adolescent PNH patients (aged 11 years to less than 18 years) included in the paediatric
PNH Study M07-005, the safety profile appeared similar to that observed in adult PNH patients. The mostcommon adverse reaction reported in paediatric patients was headache.
In paediatric aHUS patients (aged 2 months to less than 18 years) included in the aHUS studies C08-002,
C08-003, C09-001r and C10-003, the safety profile appeared similar to that observed in adult aHUSpatients. The safety profiles in the different paediatric subsets of age appear similar.
In paediatric patients with refractory gMG (aged 12 to less than 18 years) included in
Study ECU-MG-303, the safety profile appeared similar to that observed in adult patients with refractorygMG.
Elderly populationNo overall differences in safety were reported between elderly (≥ 65 years) and younger refractory gMGpatients (< 65 years) (see section 5.1).
Patients with other diseasesSafety Data from Other Clinical StudiesSupportive safety data were obtained in 12 completed clinical studies that included 934 patients exposedto eculizumab in other disease populations other than PNH, aHUS, refractory gMG or NMOSD. Therewas an un-vaccinated patient diagnosed with idiopathic membranous glomerulonephropathy whoexperienced meningococcal meningitis. Adverse reactions reported in patients with disease other than
PNH, aHUS, refractory gMG or NMOSD were similar to those reported in patients with PNH, aHUS,refractory gMG or NMOSD (see Table 1 above). No specific adverse reactions have emerged from theseclinical studies.
Reporting of suspected adverse reactionsReporting suspected adverse reactions after authorisation of the medicinal product is important. It allowscontinued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals areasked to report any suspected adverse reactions via the national reporting system listed in Appendix V.
Pharmacotherapeutic group: Complement Inhibitors, ATC code: L04AJ01
Soliris is a recombinant humanised monoclonal IgG2/4k antibody that binds to the human C5 complementprotein and inhibits the activation of terminal complement. The Soliris antibody contains human constantregions and murine complementarity-determining regions grafted onto the human framework light- andheavy-chain variable regions. Soliris is composed of two 448 amino acid heavy chains and two 214 aminoacid light chains and has a molecular weight of approximately 148 kDa.
Soliris is produced in a murine myeloma (NS0 cell line) expression system and purified by affinity and ionexchange chromatography. The bulk drug substance manufacturing process also includes specific viralinactivation and removal steps.
Mechanism of actionEculizumab, the active ingredient in Soliris, is a terminal complement inhibitor that specifically binds tothe complement protein C5 with high affinity, thereby inhibiting its cleavage to C5a and C5b andpreventing the generation of the terminal complement complex C5b-9. Eculizumab preserves the earlycomponents of complement activation that are essential for opsonization of microorganisms and clearanceof immune complexes.
In PNH patients, uncontrolled terminal complement activation and the resulting complement-mediatedintravascular haemolysis are blocked with Soliris treatment.
In most PNH patients, eculizumab serum concentrations of approximately 35 microgram/mL are sufficientfor essentially complete inhibition of terminal complement-mediated intravascular haemolysis.
In PNH, chronic administration of Soliris resulted in a rapid and sustained reduction in complement-mediated haemolytic activity.
In aHUS patients, uncontrolled terminal complement activation and the resulting complement-mediatedthrombotic microangiopathy are blocked with Soliris treatment.
All patients treated with Soliris when administered as recommended demonstrated rapid and sustainedreduction in terminal complement activity. In all aHUS patients, eculizumab serum concentrations ofapproximately 50 - 100 microgram/mL are sufficient for essentially complete inhibition of terminalcomplement activity.
In aHUS, chronic administration of Soliris resulted in a rapid and sustained reduction in complement-mediated thrombotic microangiopathy.
In refractory gMG patients, uncontrolled terminal complement activation causes membrane attackcomplex (MAC) dependent lysis and C5a-dependent inflammation at the Neuromuscular Junction (NMJ)leading to failure of neuromuscular transmission. Chronic administration of Soliris results in immediate,complete, and sustained inhibition of terminal complement activity (eculizumab serum concentrations ≥116 microgram/ml).
In patients with NMOSD, uncontrolled terminal complement activation caused by autoantibodies against
AQP4 leads to the formation of the MAC and C5a-dependent inflammation which results in astrocytenecrosis and increased permeability of the blood brain barrier, as well as death of the surroundingoligodendrocytes and neurons. Chronic administration of Soliris results in immediate, complete, andsustained inhibition of terminal complement activity (eculizumab serum concentrations ≥ 116microgram/ml).
Clinical efficacy and safetyParoxysmal Nocturnal HaemoglobinuriaThe safety and efficacy of Soliris in PNH patients with haemolysis were assessed in a randomized,double-blind, placebo-controlled 26 week study (C04-001). PNH patients were also treated with Soliris ina single arm 52 week study (C04-002), and in a long term extension study (E05-001). Patients receivedmeningococcal vaccination prior to receipt of Soliris. In all studies, the dose of eculizumab was 600 mgevery 7 ± 2 days for 4 weeks, followed by 900 mg 7 ± 2 days later, then 900 mg every 14 ± 2 days for thestudy duration. Soliris was administered as an intravenous infusion over 25 - 45 minutes (35 minutes ± 10minutes). An observational non-interventional Registry in patients with PNH (M07-001) was also initiatedto characterize the natural history of PNH in untreated patients and the clinical outcomes during Soliristreatment.
In study C04-001 (TRIUMPH) PNH patients with at least 4 transfusions in the prior 12 months, flowcytometric confirmation of at least 10% PNH cells and platelet counts of at least 100,000/microliter wererandomized to either Soliris (n = 43) or placebo (n = 44). Prior to randomization, all patients underwent aninitial observation period to confirm the need for RBC transfusion and to identify the haemoglobinconcentration (the 'set-point') which would define each patient’s haemoglobin stabilization andtransfusion outcomes. The haemoglobin set-point was less than or equal to 9 g/dL in patients withsymptoms and was less than or equal to 7 g/dL in patients without symptoms. Primary efficacy endpointswere haemoglobin stabilization (patients who maintained a haemoglobin concentration above thehaemoglobin set-point and avoid any RBC transfusion for the entire 26 week period) and bloodtransfusion requirement. Fatigue and health-related quality of life were relevant secondary endpoints.
Haemolysis was monitored mainly by the measurement of serum LDH levels, and the proportion of PNH
RBCs was monitored by flow cytometry. Patients receiving anticoagulants and systemic corticosteroids atbaseline continued these medications. Major baseline characteristics were balanced (see Table 2).
In the non-controlled study C04-002 (SHEPHERD), PNH patients with at least one transfusion in the prior24 months and at least 30,000 platelets/microliter received Soliris over a 52-week period. Concomitantmedications included anti-thrombotic agents in 63% of the patients and systemic corticosteroids in 40% ofthe patients. Baseline characteristics are shown in Table 2.
Table 2: Patient Demographics and Characteristics in C04-001 and C04-002
C04-001 C04-002
Parameter Placebo Soliris Soliris
N = 44 N = 43 N = 97
Mean Age (SD) 38.4 (13.4) 42.1 (15.5) 41.1 (14.4)
Gender - Female (%) 29 (65.9) 23 (53.5) 49 (50.5)
History of Aplastic Anaemia or MDS (%) 12 (27.3) 8 (18.7) 29 (29.9)
Concomitant Anticoagulants (%) 20 (45.5) 24 (55.8) 59 (61)
Concomitant Steroids/Immunosuppressant
Treatments (%) 16 (36.4) 14 (32.6) 46 (47.4)
Discontinued treatment 10 2 1
PRBC in previous 12 months (median(Q1,Q3)) 17.0 (13.5, 25.0) 18.0 (12.0,24.0) 8.0 (4.0, 24.0)
Mean Hgb level (g/dL) at setpoint (SD) 7.7 (0.75) 7.8 (0.79) N/A
Pre-treatment LDH levels (median, U/L) 2,234.5 2,032.0 2,051.0
Free Haemoglobin at baseline (median, 46.2 40.5 34.9mg/dL)
In TRIUMPH, study patients treated with Soliris had significantly reduced (p< 0.001) haemolysisresulting in improvements in anaemia as indicated by increased haemoglobin stabilization and reducedneed for RBC transfusions compared to placebo treated patients (see Table 3). These effects were seenamong patients within each of the three pre-study RBC transfusion strata (4 - 14 units; 15 - 25 units;> 25 units). After 3 weeks of Soliris treatment, patients reported less fatigue and improved health-relatedquality of life. Because of the study sample size and duration, the effects of Soliris on thrombotic eventscould not be determined. In SHEPHERD study, 96 of the 97 enrolled patients completed the study (onepatient died following a thrombotic event). A reduction in intravascular haemolysis as measured by serum
LDH levels was sustained for the treatment period and resulted in increased transfusion avoidance, areduced need for RBC transfusion and less fatigue. See Table 3.
Table 3: Efficacy Outcomes in C04-001 and C04-002
C04-001 C04-002*
Placebo Soliris
N = 44 N = 43 P - Value Soliris
N = 97 P - Value
Percentage of patients withstabilized Haemoglobin levels 0 49 < 0.001 N/Aat end of study
PRBC transfused duringtreatment (median) 10 0 < 0.001 0 < 0.001
Transfusion Avoidance duringtreatment (%) 0 51 < 0.001 51 < 0.001
LDH levels at end of study(median, U/L) 2,167 239 < 0.001 269 < 0.001
LDH AUC at end of study(median, U/L x Day) 411,822 58,587 < 0.001 -632,264 < 0.001
Free Haemoglobin at end ofstudy (median, mg/dL) 62 5 < 0.001 5 < 0.001
FACIT-Fatigue (effect size) 1.12 < 0.001 1.14 < 0.001
* Results from study C04-002 refer to pre- versus post-treatment comparisons.
From the 195 patients that originated in C04-001, C04-002 and other initial studies, Soliris-treated PNHpatients were enrolled in a long term extension study (E05-001). All patients sustained a reduction inintravascular haemolysis over a total Soliris exposure time ranging from 10 to 54 months. There werefewer thrombotic events with Soliris treatment than during the same period of time prior to treatment.
However, this finding was shown in non-controlled clinical trials.
The PNH registry (M07-001) was used to evaluate the efficacy of Soliris in PNH patients with no historyof RBC transfusion. These patients had high disease activity as defined by elevated haemolysis (LDH≥1.5x ULN) and the presence of related clinical symptom(s): fatigue, haemoglobinuria, abdominal pain,shortness of breath (dyspnoea), anaemia (haemoglobin <100 g/L), major adverse vascular event (includingthrombosis), dysphagia, or erectile dysfunction.
In the PNH Registry, patients treated with Soliris were observed to have a reduction in haemolysis andassociated symptoms. At 6 months, patients treated with Soliris with no history of RBC transfusion hadsignificantly (p<0.001) reduced LDH levels (median LDH of 305 U/L; Table 4). Furthermore, 74% of thepatients without a history of transfusion and treated with Soliris experienced clinically meaningfulimprovements in FACIT-Fatigue score (i.e., increase by 4 points or more) and 84% in EORTC fatiguescore (i.e., decrease by 10 points or more).
Table 4: Efficacy Outcomes (LDH level and FACIT-Fatigue) in Patients with PNH with No Historyof Transfusion in M07-001
M07-001
Parameter Soliris
No transfusion
LDH level at baseline(median , U/L) N=43
LDH level at 6 months(median, U/L) N=36
FACIT-Fatigue score at baseline N=25(median) 32
FACIT-Fatigue score at last available N=31assessment (median) 44
FACIT-Fatigue is measured on a scale of 0-52, with higher values indicating less fatigue
Atypical Haemolytic Uremic SyndromeData from 100 patients in four prospective controlled studies, three in adult and adolescent patients (C08-002A/B C08-003A/B, C10-004) one in paediatric and adolescent patients (C10-003 ) and 30 patients inone retrospective study (C09-001r) were used to evaluate the efficacy of Soliris in the treatment of aHUS.
Study C08-002A/B was a prospective, controlled, open-label study which accrued patients in the earlyphase of aHUS with evidence of clinical thrombotic microangiopathy manifestations with platelet count ≤150 x 109/L despite PE/PI, and LDH and serum creatinine above upper limits of normal.
Study C08-003A/B was a prospective, controlled, open-label study which accrued patients with longerterm aHUS without apparent evidence of clinical thrombotic microangiopathy manifestations andreceiving chronic PE/PI (≥1 PE/PI treatment every two weeks and no more than 3 PE/PI treatments/weekfor at least 8 weeks before the first dose). Patients in both prospective studies were treated with Soliris for26 weeks and most patients enrolled into a long-term, open-label extension study. All patients enrolled inboth prospective studies had an ADAMTS-13 level above 5%.
Patients received meningococcal vaccination prior to receipt of Soliris or received prophylactic treatmentwith appropriate antibiotics until 2 weeks after vaccination. In all studies, the dose of Soliris in adult andadolescent aHUS patients was 900 mg every 7 ± 2 days for 4 weeks, followed by 1,200 mg 7 ± 2 dayslater, then 1,200 mg every 14 ± 2 days for the study duration. Soliris was administered as an intravenousinfusion over 35 minutes. The dosing regimen in paediatric patients and adolescents weighing less than40 kg was defined based on a pharmacokinetic (PK) simulation that identified the recommended dose andschedule based on body weight (see section 4.2).
Primary endpoints included platelet count change from baseline in study C08-002A/B and thromboticmicroangiopathy (TMA) event-free status in study C08-003A/B. Additional endpoints included TMAintervention rate, haematologic normalization, complete TMA response, changes in LDH, renal functionand quality of life. TMA-event free status was defined as the absence for at least 12 weeks of thefollowing: decrease in platelet count of > 25% from baseline, PE/PI, and new dialysis. TMA interventionswere defined as PE/PI or new dialysis. Haematologic normalization was defined as normalization ofplatelet counts and LDH levels sustained for ≥2 consecutive measurements for ≥4 weeks. Complete TMAresponse was defined as haematologic normalization and a ≥25% reduction in serum creatinine sustainedin ≥ 2 consecutive measurements for ≥ 4 weeks.
Baseline characteristics are shown in Table 5.
Table 5: Patient Demographics and Characteristics in C08-002A/B and C08-003A/B
Parameter C08-002A/B C08-003A/B
Soliris Soliris
N = 17 N = 20
Time from first diagnosis until screening in 10 (0.26, 236) 48 (0.66, 286)months, median (min, max)
Time from current clinical TMA < 1 (<1, 4) 9 (1, 45)manifestation until screening in months,median (min, max)
Number of PE/PI sessions for current 17 (2, 37) 62 (20, 230)clinical TMA manifestation, median (min,max)
Number of PE/PI sessions in 7 days prior to 6 (0, 7) 2 (1, 3)first dose of eculizumab, median (min, max)
Baseline platelet count (× 109/L), mean (SD) 109 (32) 228 (78)
Baseline LDH (U/L), mean (SD) 323 (138) 223 (70)
Patients without identified mutation, n (%) 4 (24) 6 (30)
Patients in aHUS Study C08-002 A/B received Soliris for a minimum of 26 weeks. After completion ofthe initial 26-week treatment period, most patients continued to receive Soliris by enrolling into anextension study. In aHUS Study C08-002A/B, the median duration of Soliris therapy wasapproximately100 weeks (range: 2 weeks to 145 weeks).
A reduction in terminal complement activity and an increase in platelet count relative to baseline wereobserved after commencement of Soliris. Reduction in terminal complement activity was observed in allpatients after commencement of Soliris. Table 6 summarizes the efficacy results for aHUS Study C08-002A/B. All rates of efficacy endpoints improved or were maintained through 2 years of treatment.
Complete TMA response was maintained by all responders. When treatment was continued for more than26 weeks, two additional patients achieved and maintained Complete TMA response due to normalizationof LDH (1 patient) and a decrease in serum creatinine (2 patients).
Renal function, as measured by eGFR, was improved and maintained during Soliris therapy. Four of thefive patients who required dialysis at study entry were able to discontinue dialysis for the duration of
Soliris treatment, and one patient developed a new dialysis requirement. Patients reported improvedhealth-related quality of life (QoL).
In aHUS Study C08-002A/B, responses to Soliris were similar in patients with and without identifiedmutations in genes encoding complement regulatory factor proteins.
Patients in aHUS study C08-003A/B received Soliris for a minimum of 26 weeks. After completion of theinitial 26-week treatment period, most patients continued to receive Soliris by enrolling into an extensionstudy. In aHUS Study C08-003A/B, the median duration of Soliris therapy was approximately 114 weeks(range: 26 to 129 weeks). Table 6 summarizes the efficacy results for aHUS Study C08-003A/B.
In aHUS Study C08-003A/B, responses to Soliris were similar in patients with and without identifiedmutations in genes encoding complement regulatory factor proteins. Reduction in terminal complementactivity was observed in all patients after commencement of Soliris. All rates of efficacy endpointsimproved or were maintained through 2 years of treatment. Complete TMA response was maintained byall responders. When treatment was continued for more than 26 weeks, six additional patients achievedand maintained Complete TMA response due to a decrease in serum creatinine. No patient required newdialysis with Soliris. Renal function, as measured by median eGFR, increased during Soliris therapy.
Table 6: Efficacy Outcomes in Prospective aHUS Studies C08-002A/B and C08-003A/B
C08-002A/B C08-003A/B
N=17 N=20
At 26 weeks At 2 years1 At 26 weeks At 2 years1
Normalization ofplatelet count 14 (82) 15 (88) 18 (90) 18 (90)
All patients, n (%) (57-96) (64-99) (68-99) (68-99)(95% CI) 13/15 (87) 13/15 (87) 1/3 (33) 1/3 (33)
Patients with abnormalbaseline, n/n (%)
TMA event-free 15 (88) 15 (88) 16 (80) 19 (95)status, n (%) (95% CI) (64-99) (64-99) (56-94) (75-99)
TMA intervention rate
Daily pre- 0.88 0.88 0.23 0.23eculizumab rate, (0.04, 1.59) (0.04, 1.59) (0.05, 1.09) (0.05, 1.09)median (min, max)
Daily during- 0 (0, 0.31) 0 (0, 0.31) 0 0eculizumab rate,median (min, max) P<0.0001 P<0.0001 P <0.0001 P<0.0001
P-value
CKD improvement by 10 (59) 12 (71) 7 (35) 12 (60)≥1 stage, (33-82) (44-90) (15-59) (36-81)n (%) (95% CI)eGFR change 20 (-1, 98) 28 (3, 82) 5 (-1, 20) 11 (-42, 30)mL/min/1.73 m2:median (range)eGFR improvement 8 (47) 10 (59) 1 (5) 8 (40)≥15 mL/min/1.73 m2, (23-72) (33-82) (0-25) (19-64)n (%) (95% CI)
Change in Hgb > 11 (65) 13 (76) 9 (45) 13 (65)20g/L, n (%) (95% CI) (38-86) 2 (50-93) (23-68) 3 (41-85)
Haematologic 13 (76) 15 (88) 18 (90) 18 (90)normalization, n (%) (50-93) (64-99) (68-99) (68-99)(95% CI)
Complete TMA 11(65) 13(76) 5 (25) 11(55)response, n (%) (95% (38-86) (50-93) (9-49) (32-77)
CI)1 At data cut off (20 April 2012)2 Study C08-002: 3 patients received ESA which was discontinued after eculizumab initiation3 Study C08-003: 8 patients received ESA which was discontinued in 3 of them during eculizumab therapyaHUS Study C10-004 enrolled 41 patients who displayed signs of thrombotic microangiopathy (TMA). Inorder to qualify for enrolment, patients were required to have a platelet count < lower limit of normalrange (LLN), evidence of haemolysis such as an elevation in serum LDH, and serum creatinine above theupper limits of normal, without the need for chronic dialysis. The median patient age was 35 (range: 18 to80 years). All patients enrolled in aHUS Study C10-004 had an ADAMTS-13 level above 5%. Fifty-onepercent of patients had an identified complement regulatory factor mutation or auto-antibody. A total of35 patients received PE/PI prior to eculizumab. Table 7 summarizes the key baseline clinical and disease-related characteristics of patients enrolled in aHUS C10-004.
Table 7: Baseline Characteristics of Patients Enrolled in aHUS Study C10-004aHUS Study C10-004
Parameter
N = 41
Time from aHUS diagnosis to first study dose (months),median ( min, max) 0.79 (0.03, 311)
Time from current clinical TMA manifestation until firststudy dose (months), median ( min, max) 0.52 (0.03, 19)
Baseline platelet count (× 109/L), median (, min, max ) 125 (16, 332)
Baseline LDH (U/L), median (, min, max) 375 (131, 3318)
Baseline eGFR (mL/min/1.73m2), median (min, max) 10 (6, 53)
Patients in aHUS Study C10-004 received Soliris for a minimum of 26 weeks. After completion of theinitial 26-week treatment period, most patients elected to continue on chronic dosing.
Reduction in terminal complement activity and an increase in platelet count relative to baseline wereobserved after commencement of Soliris. Soliris reduced signs of complement-mediated TMA activity, asshown by an increase in mean platelet counts from baseline to 26 weeks. In aHUS C10-004, mean (±SD)platelet count increased from 119 ± 66 x109/L at baseline to 200 ± 84 x109/L by one week; this effect wasmaintained through 26 weeks (mean platelet count (±SD) at week 26: 252 ± 70 x109/L). Renal function, asmeasured by eGFR, was improved during Soliris therapy. Twenty of the 24 patients who required dialysisat baseline were able to discontinue dialysis during Soliris treatment. Table 8 summarizes the efficacyresults for aHUS study C10-004.
Table 8: Efficacy Outcomes in Prospective aHUS Study C10-004aHUS Study C10-004
Efficacy Parameter (N = 41)
At 26-weeks
Change in platelet count through week 26 (109/L) 111 (-122, 362)
Hematologic Normalization, n (%) 36 (88)
Median duration of hematologic normalization, weeks (range) 1 46 (10, 74)
Complete TMA response, n (%) 23 (56)
Median duration of complete TMA response, weeks (range) 1 42 (6, 74)
TMA Event-free Status, n (%) 37 (90)95% CI 77; 97
Daily TMA Intervention Rate, median (range)
Before eculizumab 0.63 (0, 1.38)
On eculizumab treatment 0 (0, 0.58)1 Through data cut-off (September 4, 2012), with median duration of Soliris therapy of 50 weeks (range: 13weeks to 86 weeks).
Longer term treatment with Soliris (median 52 weeks ranging from 15 to 126 weeks) was associated withan increased rate of clinically meaningful improvements in adult patients with aHUS. When Soliristreatment was continued for more than 26 weeks, three additional patients (63% of patients in total)achieved Complete TMA response and four additional patients (98% of patients in total) achievedhematologic normalization. At the last evaluation, 25 of 41 patients (61%) achieved eGFR improvementof ≥ 15 mL/min/1.73 m2 from baseline.
Refractory Generalized Myasthenia GravisData from 139 patients in two prospective controlled studies (Studies C08-001 and ECU-MG-301), andone open-label extension trial (Study ECU-MG-302) were used to evaluate the efficacy of Soliris in thetreatment of patients with refractory gMG.
Study ECU-MG-301 (REGAIN) was a 26-week double-blind, randomized, placebo-controlled, multi-center Phase 3 study of Soliris in patients who had failed previous therapies and remain symptomatic. Onehundred and eighteen (118) of the 125 (94%) patients completed the 26-week treatment period and117 (94%) patients subsequently enrolled in Study ECU-MG-302, an open-label, multi-center long-termsafety and efficacy extension study in which all patients received Soliris treatment.
In Study ECU-MG-301, gMG patients with a positive serologic test for anti-AChR antibodies, MGFA(Myasthenia Gravis Foundation of America) clinical classification class II to IV and MG-ADL total score≥6 were randomized to either Soliris (n = 62) or placebo (n = 63). All patients included in the trial wererefractory gMG patients and met the following predefined criteria:
1) Failed treatment for at least one year with 2 or more immunosuppressant therapies (either incombination or as monotherapy), ie, patients continued to have impairment in activities of daily livingdespite immunosuppressant therapies
OR2) Failed at least one immunosuppressant therapy and required chronic plasma exchange or IVIg tocontrol symptoms, ie, patients require PE or IVIg on a regular basis for the management of muscleweakness at least every 3 months over previous 12 months.
Patients received meningococcal vaccination prior to initiating treatment with Soliris or receivedprophylactic treatment with appropriate antibiotics until 2 weeks after vaccination. In Studies ECU-MG-301 and ECU-MG-302, the dose of Soliris in adult refractory gMG patients was 900 mg every 7 ± 2 daysfor 4 weeks, followed by 1200 mg at Week 5± 2 days, then 1,200 mg every 14 ± 2 days for the studyduration. Soliris was administered as an intravenous infusion over 35 minutes.
Table 9 presents the baseline characteristics of the refractory gMG patients enrolled in Study ECU-MG-301.
Table 9: Patient Demographic and Characteristics in Study ECU-MG-301
Soliris (n=62) Placebo (n=63)
Age at MG Diagnosis (years),
Mean (min, max) 38.0 (5.9, 70.8) 38.1 (7.7, 78.0)
Female, n (%) 41 (66.1) 41 (65.1)
Duration of MG (years),
Mean (min, max) 9.9 (1.3, 29.7) 9.2 (1.0, 33.8)
Baseline MG-ADL Score
Mean (SD) 10.5 (3.06) 9.9 (2.58)
Median 10.0 9.0
Baseline QMG Score
Mean (SD) 17.3 (5.10) 16.9 (5.56)
Median 17.0 16.0≥3 Prior Immunosuppressive Therapies*since diagnosis, n (%) 31 (50.0) 34 (54.0)
Number of patients with prior exacerbationssince diagnosis, n (%) 46 (74.2) 52 (82.5)
Number of patients with prior MG crisissince diagnosis, n (%) 13 (21.0) 10 (15.9)
Any prior ventilator support since diagnosis,n (%) 15 (24.2) 14 (22.2)
Any prior intubation since diagnosis (MGFAclass V), n (%) 11 ( 17.7) 9 ( 14.3)
* Immunosuppressant’s included, but are not limited to, corticosteroids, azathioprine, mycophenolate, methotrexate ,cyclosporine, tacrolimus, or cyclophosphamide.
The primary endpoint for Study ECU-MG-301 was the change from baseline in the MG Activities of
Daily Living Profile (MG-ADL - a patient reported outcome measure validated in gMG) total score at
Week 26. The primary analysis of the MG-ADL was a Worst-Rank ANCOVA with a mean rank of 56.6for Soliris and 68.3 for placebo, based on 125 study patients (p=0.0698).
The key secondary endpoint was the change from baseline in the Quantitative MG Scoring System (QMG- a physician reported outcome measure validated in gMG) total score at Week 26. The primary analysisof the QMG was a Worst-Rank ANCOVA with a mean rank of 54.7 for Soliris and 70.7 for placebo,based on 125 study patients (p=0.0129).
Efficacy outcomes for the pre-specified repeated measures analyses of the primary and secondaryendpoints are provided in Table 10.
Table 10: ECU-MG-301 Efficacy Outcomes Change from Baseline to Week 26
Efficacy Soliris Placebo Soliris change p-value (using
Endpoints: Total (n=62) (n=63) relative to placebo repeated measuresscore change (SEM) (SEM) - LS Mean analysis)from baseline at Difference (95%
Week 26 CI)
MG-ADL -4.2 (0.49) -2.3(0.48) -1.9 0.0058(-3.3, -0.6)
QMG -4.6 (0.60) -1.6 (0.59) -3.0 0.0006(-4.6, -1.3)
MGC -8.1 (0.96) -4.8 (0.94) -3.4 0.0134(-6.0, -0.7)
MG-QoL-15 -12.6 (1.52) -5.4 (1.49) -7.2 0.0010(-11.5, -3.0)
SEM= Standard Error of the Mean CI= Confidence Interval, MGC= Myasthenia Gravis Composite, MG-QoL15=
Myasthenia Gravis Quality of Life 15
In Study ECU-MG-301, a clinical responder in the MG-ADL total score was defined as having at least a3-point improvement. The proportion of clinical responders at Week 26 with no rescue therapy was 59.7%on Soliris compared with 39.7% on placebo (p=0.0229).
In Study ECU-MG-301, a clinical responder in the QMG total score was defined as having at least a 5-pointimprovement. The proportion of clinical responders at Week 26 with no rescue therapy was 45.2% on Soliriscompared with 19% on placebo (p=0.0018).
Table 11 presents an overview of the patients reporting clinical deterioration and patients requiring rescuetherapy over the 26 weeks.
Table 11: Clinical deterioration and rescue therapy in ECU-MG-301
Variable Statistic Placebo Soliris(N=63) (N=62)
Total number of patients reporting clinical deterioration n (%) 15 (23.8) 6 (9.7)
Total number of patients requiring rescue therapy n (%) 12 (19.0) 6 (9.7)
Of the 125 patients enrolled in ECU-MG-301, 117 patients subsequently enrolled in a long-term extensionstudy (Study ECU-MG-302), in which all received Soliris. Patients that were previously treated with Solirisin Study ECU-MG-301 continued to demonstrate a sustained effect of Soliris on all measures (MG-ADL,
QMG, MGC and MG-QoL15) over an additional 130 weeks of treatment with eculizumab in Study ECU-
MG-302. For patients who received placebo in Study ECU-MG-301 (placebo/eculizumab arm of Study
ECU-MG-302), improvement occurred after initiating treatment with eculizumab and was maintained formore than 130 weeks in Study ECU-MG-302. Figure 1 presents the change from baseline in both MG-ADL(A) and QMG (B) after 26 weeks of treatment in Study ECU-MG-301 and after 130 weeks of treatment (n= 80 patients) in Study ECU-MG-302.
Figure 1: Mean changes from baseline in MG-ADL (1A) and QMG (1B) over Studies ECU-MG-301 and
ECU-MG-302
In Study ECU-MG-302, physicians had the option to adjust background immunosuppressant therapies. Inthis setting, 65.0% of patients decreased their daily dose of at least 1 immunosuppressive therapy (IST);43.6% of patients stopped an existing IST. The most common reason for change in IST therapy wasimprovement in MG symptoms.
Twenty-two (22) (17.6%) elderly refractory gMG patients (> 65 years of age) were treated with Soliris inthe clinical trials. No substantial differences were seen in safety and efficacy related to age.
Neuromyelitis Optica Spectrum DisorderData from 143 patients in one controlled study (Study ECU-NMO-301) and from 119 patients whocontinued in one open-label extension trial (Study ECU-NMO-302) were used to evaluate the efficacy andsafety of Soliris in the treatment of patients with NMOSD.
Study ECU-NMO-301 was a double-blind, randomized, placebo-controlled, multi-center, Phase 3 study of
Soliris in patients with NMOSD.
In Study ECU-NMO-301, patients with NMOSD with a positive serologic test for anti-AQP4 antibodies, ahistory of at least 2 relapses in last 12 months or 3 relapses in the last 24 months with at least 1 relapse inthe 12 months prior to screening and an Expanded Disability Status Scale (EDSS) score ≤ 7, wererandomized 2:1 to either Soliris (n = 96) or placebo (n = 47). Patients were permitted to receivebackground immunosuppressant therapies at stable dose during the study, with the exclusion of rituximaband mitoxantrone.
Patients either received meningococcal vaccination at least 2 weeks prior to initiating treatment with
Soliris or received prophylactic treatment with appropriate antibiotics until 2 weeks after vaccination. Inthe eculizumab NMOSD clinical development program, the dose of Soliris in adult patients with NMOSDwas 900 mg every 7 ± 2 days for 4 weeks, followed by 1200 mg at Week 5 ± 2 days, then 1200 mg every14 ± 2 days for the study duration. Soliris was administered as an intravenous infusion over 35 minutes.
The majority (90.9%) of patients were female. Approximately half were White (49.0%). The median ageat first dose of study drug was 45 years.
Table 12: Patient Disease History and Baseline Characteristics in Study ECU-NMO-301
Placebo Eculizumab Total
Variable Statistic (N = 47) (N = 96) (N = 143)
NMOSD History
Age at NMOSD Initial Mean (SD) 38.5 (14.98) 35.8 (14.03) 36.6 (14.35)
Clinical Presentation Median 38.0 35.5 36.0(years) Min, Max 12, 73 5, 66 5, 73
Time from NMOSD Mean (SD) 6.601 (6.5863) 8.156 (8.5792) 7.645 (7.9894)initial clinical Median 3.760 5.030 4.800presentation to firstdose of study drug Min, Max 0.51, 29.10 0.41, 44.85 0.41, 44.85(years)
Historical Annualized Mean (SD) 2.07 (1.037) 1.94 (0.896) 1.99 (0.943)
Relapse Rate within Median 1.92 1.85 1.9224 months prior to
Screening Min, Max 1.0, 6.4 1.0, 5.7 1.0, 6.4
Baseline characteristics
Baseline EDSS score Mean (SD) 4.26 (1.510) 4.15 (1.646) 4.18 (1.598)
Median 4.00 4.00 4.00
Min, Max 1.0, 6.5 1.0, 7.0 1.0, 7.0
No IST usage atbaseline n (%) 13 (27.7) 21 (21.9) 34 (23.8)
Abbreviations: ARR = adjudicated relapse rate; EDSS = Expanded Disability Status Scale; IST = immunosupressanttherapy; Max = maximum; Min = minimum; NMOSD = neuromyelitis optica spectrum disorder; SD = standarddeviation.
The primary endpoint for Study ECU-NMO-301 was the time to first on-trial relapse as adjudicated by anindependent committee who were blinded to treatment. A significant effect on the time to first adjudicated
On-trial Relapse was observed for eculizumab compared with placebo (relative risk reduction 94%; hazardratio 0.058; p<0.0001) (Figure 2). Soliris-treated patients experienced similar improvement in time to firstadjudicated on-trial relapse with or without concomitant IST treatment.
1.097.9% 96.4% 96.4%0.80.663.2%0.4 51.9%45.4%0.2 Proportion Relapse-Free at48 Weeks (95% CI) (1,2):0.632 (0.468, 0.758) Log rank p-value (3): <0.0001 Placebo0.979 (0.918, 0.995) Hazard ratio (95% CI) (4,5): 0.058 (0.017, 0.197) Eculizumab0.00 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180 192 204 216
Time in Study Period (weeks)
Number at Risk:
Placebo 47 38 30 24 21 16 13 10 9 6 5 5 4 3 3 3 3 1
Eculizumab 96 92 83 78 68 60 58 52 46 41 32 24 22 18 14 8 2 1
Figure 2: Kaplan-Meier Survival Estimates for Time to First Adjudicated On-Trial Relapse in
Study ECU-NMO-301 - Full Analysis Set
Note: Patients who did not experience an adjudicated On-trial Relapse were censored at the end of the Study Period.
Stratified analyses are based on four randomization strata:(i) low EDSS at randomization (<=2.0), (ii) high EDSS (>=2.5 to <=7) and treatment naive at randomization, (iii) high
EDSS (>=2.5 to <=7) and continuing on the same IST(s) since last relapse at randomization, (iv) high EDSS (>=2.5to <=7) and changes in IST(s) since last relapse at randomization.1 Based on the Kaplan-Meier product limit method.2 Based on the complementary log-log transformation.3 Based on a stratified log-rank test.4 Based on a stratified Cox proportional hazards model.5 Wald confidence interval.
Abbreviations: CI = confidence interval; EDSS = Expanded Disability Status Scale; IST = immunosuppressive therapy
The adjudicated on-trial annualized relapse rate (ARR) ratio (95% CI) for eculizumab compared withplacebo was 0.045 (0.013, 0.151), representing a 95.5% relative reduction in adjudicated On-trial ARR forpatients treated with eculizumab compared with placebo (p<0.0001) (Table 13).
Proportion Relapse-Free
Table 13: Adjudicated On-trial Annualized Relapse Rate in Study ECU-NMO-301 - Full Analysis
Set
Placebo Eculizumab
Variable Statistic (N = 47) (N = 96)
Total number of relapses Sum 21 3
Total number of patient-years in studyperiod n 52.41 171.32
Rate 0.350 0.016
Adjusted adjudicated ARRa95% CI 0.199, 0.616 0.005, 0.050
Rate ratio(eculizumab/placebo) … 0.045
Treatment effecta 95% CI … 0.013, 0.151p-value … <0.0001a Based on a Poisson regression adjusted for randomization strata and historical ARR in 24 monthsprior to Screening.
Abbreviations: ARR = annualized relapse rate; CI = confidence interval.
Compared to placebo-treated patients, Soliris-treated patients had reduced annualized rates ofhospitalizations (0.04 for Soliris versus 0.31 for placebo), of intravenous corticosteroid administrations totreat acute relapses (0.07 for Soliris versus 0.42 for placebo), and of plasma exchange treatments (0.02 for
Soliris versus 0.19 for placebo).
The distribution of changes from Baseline to End of Study on other secondary endpoints favoredeculizumab treatment over placebo across all neurologic disability (EDSS score [p=0.0597] and mRS[nominal p=0.0154]), functional disability (HAI [nominal p=0.0002]) and quality of life (EQ-5D VAS[nominal p=0.0309] and EQ-5D Index [nominal p= 0.0077]) measures.
The final analysis of Study ECU-NMO-302 demonstrates a significant and clinically meaningful reductionin On-trial ARR (as determined by the treating Physician) on eculizumab treatment, based on the median(min, max) change (-1.825 [-6.38, 1.02], p<0.0001) from historical ARR (24 months prior to screening in
Study ECU-NMO-301).
In Study ECU-NMO-302, physicians had the option to adjust background immunosuppressant therapies. Inthis setting, the most common change in immunosuppressant therapy was decreased immunosuppressanttherapy dose, which occurred in 21.0% of patients. Further, 15.1% of patients stopped an existing IST.
Soliris (eculizumab) has not been studied for the treatment of acute relapses in NMOSD patients.
Paediatric populationParoxysmal Nocturnal HaemoglobinuriaA total of 7 PNH paediatric patients, with a median weight of 57.2 kg (range of 48.6 to 69.8 kg) and agedfrom 11 to 17 years (median age : 15.6 years), received Soliris in study M07-005.
Treatment with eculizumab at the proposed dosing regimen in the paediatric population was associatedwith a reduction of intravascular haemolysis as measured by serum LDH level. It also resulted in a markeddecrease or elimination of blood transfusions, and a trend towards an overall improvement in generalfunction. The efficacy of eculizumab treatment in paediatric PNH patients appears to be consistent withthat observed in adult PNH patients enrolled in PNH pivotal Studies (C04-001 and C04-002) (Table 3 and14).
Table 14: Efficacy Outcomes in Paediatric PNH Study M07-005
P - Value
Mean (SD) Wilcoxon Signed
Rank Paired t-test
Change from baseline at 12 weeks of LDH -771 (914) 0.0156 0.0336
Value (U/L)
LDH AUC -60,634 0.0156 0.0350(U/L x Day) (72,916)
Change from baseline at 12 weeks in
Plasma Free Haemoglobin (mg/dL) -10.3 (21.13) 0.2188 0.1232
Change from baseline Type III RBC clonesize (Percent of aberrant cells) 1.80 (358.1)
Change from baseline at 12 weeks of
PedsQLTM4.0 Generic Core scale (patients) 10.5 (6.66) 0.1250 0.0256
Change from baseline at 12 weeks of
PedsQLTM4.0 Generic Core scale (parents) 11.3 (8.5) 0.2500 0.0737
Change from baseline at 12 weeks of
PedsQLTM Multidimensional Fatigue 0.8 (21.39) 0.6250 0.4687(patients)
Change from baseline at 12 weeks of
PedsQLTM Multidimensional Fatigue 5.5 (0.71) 0.5000 0.0289(parents)
Atypical Haemolytic Uremic SyndromeA total of 15 paediatric patients (aged 2 months to 12 years) received Soliris in aHUS Study C09-001r.
Forty seven percent of patients had an identified complement regulatory factor mutation or auto-antibody.
The median time from aHUS diagnosis to first dose of Soliris was 14 months (range <1, 110 months). Themedian time from current thrombotic microangiopathy manifestation to first dose of Soliris was 1 month(range <1 to 16 months). The median duration of Soliris therapy was 16 weeks (range 4 to 70 weeks) forchildren < 2 years of age (n=5) and 31 weeks (range 19 to 63 weeks) for children 2 to <12 years of age(n=10).
Overall, the efficacy results for these paediatric patients appeared consistent with what was observed inpatients enrolled in aHUS pivotal Studies C08-002 and C08-003 (Table 6). No paediatric patient requirednew dialysis during treatment with Soliris.
Table 15: Efficacy Results in Paediatric Patients Enrolled in aHUS C09-001r
Efficacy Parameter <2 years 2 to <12 years <12 years(n=5) (n=10) (n=15)
Patients with platelet count 4 (80) 10 (100) 14 (93)normalization, n (%)
Complete TMA response, n (%) 2 (40) 5 (50) 7 (50)
Daily TMA intervention rate,median (range)
Before eculizumab 1 (0, 2) <1 (0.07, 1.46) <1 (0, 2)
On eculizumab treatment <1 (0, <1) 0 (0, <1) 0 (0, <1)
Patients with eGFR improvement 2 (40) 6 (60) 8 (53)≥15 mL/min/1.73 m2, n (%)
In paediatric patients with shorter duration of current severe clinical thrombotic microangiopathy (TMA)manifestation prior to eculizumab, there was TMA control and improvement of renal function witheculizumab treatment (Table 15).
In paediatric patients with longer duration of current severe clinical TMA manifestation prior toeculizumab, there was TMA control with eculizumab treatment. However, renal function was notchanged due to prior irreversible kidney damage (Table 16).
Table 16: Efficacy Outcomes in Paediatric Patients in Study C09-001r according to duration ofcurrent severe clinical thrombotic microangiopathy (TMA) manifestation
Duration of current severeclinical TMA manifestation< 2 months >2 months
N=10 (%) N=5 (%)
Platelet count normalization 9 (90) 5 (100)
TMA event-free status 8 (80) 3 (60)
Complete TMA response 7 (70) 0eGFR improvement ≥ 15 mL/min/1.73m2 7 (70) 0*
*One patient achieved eGFR improvement after renal transplant
A total of 22 paediatric and adolescents patients (aged 5 months to 17 years) received Soliris inaHUS Study C10-003.
In Study C10-003, patients who enrolled in the study were required to have a platelet count < lower limitof normal range (LLN), evidence of haemolysis such as an elevation in serum LDH above the upper limitsof normal and serum creatinine level ≥97 percentile for age without the need for chronic dialysis. Themedian patient age was 6.5 years (range: 5 months to 17 years). Patients enrolled in aHUS C10-003 hadan ADAMTS-13 level above 5%. Fifty percent of patients had an identified complement regulatory factormutation or auto-antibody. A total of 10 patients received PE/PI prior to eculizumab. Table 17 summarizesthe key baseline clinical and disease-related characteristics of patients enrolled in aHUS Study C10-003.
Table 17: Baseline Characteristics of Paediatric and Adolescents Patients Enrolled in aHUS Study
C10-0031 month to <12 years All Patients
Parameter (N = 18) (N = 22)
Time from aHUS diagnosis until first study dose(months) median (min, max ) 0.51 (0.03, 58) 0.56 (0.03,191)
Time from current clinical TMA manifestationuntil first study dose (months), median ( min, 0.23 (0.03, 4) 0.20 (0.03, 4)max)
Baseline platelet count (x 109/L), median ( min,max) 110 (19, 146) 91 (19,146)
Baseline LDH (U/L) median (min, max ) 1510 (282, 7164) 1244 (282, 7164)
Baseline eGFR (mL/min/1.73 m2 ), median (min,max) 22 (10, 105) 22 (10, 105)
Patients in aHUS C10-003 received Soliris for a minimum of 26 weeks. After completion of the initial 26-week treatment period, most patients elected to continue on chronic dosing. Reduction in terminalcomplement activity was observed in all patients after commencement of Soliris. Soliris reduced signs ofcomplement-mediated TMA activity, as shown by an increase in mean platelet counts from baseline to 26weeks. The mean (±SD) platelet count increased from 88 ± 42 x109/L at baseline to 281 ± 123 x109/L byone week; this effect was maintained through 26 weeks (mean platelet count (±SD) at week 26: 293 ± 106x109/L). Renal function, as measured by eGFR, was improved during Soliris therapy. Nine of the 11patients who required dialysis at baseline no longer required dialysis after Study Day 15 of eculizumabtreatment. Responses were similar across all ages from 5 months to 17 years of age. In aHUS C10-003,responses to Soliris were similar in patients with and without identified mutations in genes encodingcomplement regulatory factor proteins or auto-antibodies to factor H.
Table 18 summarizes the efficacy results for aHUS C10-003.
Table 18: Efficacy Outcomes in Prospective aHUS Study C10-0031 month to <12 years All Patients
Efficacy Parameter (N = 18) (N = 22)
At 26-weeks At 26-weeks
Complete Hematologic Normalization, n (%) 14 (78) 18 (82)
Median Duration of complete hematologic1 35 (13, 78) 35 (13, 78)normalization, weeks (range)
Complete TMA response, n (%) 11 (61) 14 (64)
Median Duration of complete TMA response,weeks (range)1 40 (13, 78) 37 (13, 78)
TMA Event-Free Status, n (%) 17 (94) 21 (96)95% CI NA 77; 99
Daily TMA Intervention rate, median (range)
NA 0.4 (0, 1.7)
Before eculizumab treatment, median
NA 0 (0, 1.01)
On eculizumab treatment, medianeGFR improvement ≥15 mL/min/ 1.73*m2, n (%) 16 (89) 19 (86)
Change in eGFR ( ≥15 mL/min/1.73*m2) at 26weeks, median (range) 64 (0,146) 58 (0, 146)
CKD improvement by ≥1 stage, n (%) 14/16 (88) 17/20 (85)
PE/PI Event-Free Status, n (%) 16 (89) 20 (91)
New Dialysis Event-Free Status, n (%) 18 (100) 22 (100)95% CI NA 85;1001 Through data cut-off (October 12, 2012), with median duration of Soliris therapy of 44 weeks (range: 1 dose to 88weeks).
Longer term treatment with Soliris (median 55 weeks ranging from 1day to 107 weeks) was associatedwith an increased rate of clinically meaningful improvements in paediatric and adolescent patients withaHUS. When Soliris treatment was continued for more than 26 weeks, one additional patient (68% ofpatients in total) achieved Complete TMA Response and two additional patients (91% of patients in total)achieved hematologic normalization. At the last evaluation, 19 of 22 patients (86%) achieved eGFRimprovement of ≥ 15 mL/min/1.73 m2 from baseline. No patient required new dialysis with Soliris.
Refractory Generalized Myasthenia GravisA total of 11 paediatric patients with refractory gMG received Soliris in study ECU-MG-303. The median(range) body weight of the treated patients was 59.7 kg (37.2 to 91.2 kg) at baseline, and the median(range) age of 15 years (12 to 17 years) at screening. All patients included in the study were patients withrefractory gMG who had one or more of the following:
1. Failed treatment ≥ 1 year with at least 1 IST, defined as: (i) Persistent weakness with impairment ofactivities of daily living, or (ii) Myasthenia gravis exacerbation and/or crisis while on treatment,or (iii) Intolerance to ISTs due to side effect or comorbid condition(s).
2. Require maintenance PE or IVIg to control symptoms (ie, patients who require PE or IVIg on aregular basis for the management of muscle weakness at least every 3 months over the last12 months prior to screening).
The baseline characteristics of the paediatric patients with refractory gMG enrolled in study ECU-MG-303are outlined in Table 19.
Table 19: Patient Demographic and Characteristics in Study ECU-MG-303
Eculizumab (n = 11)
Female n (%) 9 (81.8%)
Duration of MG (time from MG Mean (SD) 3.99 (2.909)diagnosis to first study drug date Median (min, max) 2.90 (0.1, 8.8)[years])
Baseline MG-ADL total score Mean (SD) 5.0 (5.25)
Median (min, max) 4.0 (0, 19)
Baseline QMG total score Mean (SD) 16.7 (5.64)
Median (min, max) 15.0 (10, 28)
MGFA classification at Screening n (%)
IIa 2 (18.2)
IIb 3 (27.3)
IIIa 3 (27.3)
IIIb 0
IVa 3 (27.3)
IVb 0
Patients with prior MG exacerbation n (%)including MG crisis since diagnosis
No 4 (36.4)
Yes 7 (63.6)
Exacerbation 6 (54.5)
MG crisis 3 (27.3)
Chronic IVIg therapy at study entry n (%)
Yes 6 (54.5)
No 5 (45.5)
Number of immunosuppressant n (%)therapies at Baseline 2 (18.2)0 4 (36.4)1 5 (45.5)
Patients with any immunosuppressant n (%)therapiesa at Baseline n (%)
Corticosteroids 8 (72.7)
Azathioprine 1 (9.1)
Mycophenolate mofetil 2 (18.2)
Tacrolimus 3 (27.3)aImmunosuppressant therapies included corticosteroids, azathioprine, cyclophosphamide, cyclosporine,methotrexate, mycophenolate mofetil, or tacrolimus. No patient received cyclosporine, cyclophosphamide, ormethotrexate at Baseline.
Abbreviations: IVIg = intravenous immunoglobulin; max = maximum; MG = myasthenia gravis;
MG-ADL = Myasthenia Gravis Activities of Daily Living profile; MGFA = Myasthenia Gravis Foundation of
America; min = minimum; QMG = Quantitative Myasthenia Gravis score for disease severity; SD = standarddeviation
The primary endpoint of study ECU-MG-303 was the change from baseline in the QMG total score overtime regardless of rescue therapy. Paediatric patients treated with Soliris demonstrated a statisticallysignificant improvement from baseline in QMG total score throughout the Primary Evaluation Treatment
Period of 26 weeks. The results for the primary and main secondary endpoint in study ECU-MG-303 areincluded in Table 20.
The efficacy of Soliris treatment in paediatric patients with refractory gMG was consistent with thatobserved in adult patients with refractory gMG enrolled in the pivotal study ECU-MG-301 (Table 10).
Table 20: Efficacy Outcomes in Study ECU-MG-303
Efficacy Endpoints: Total Score Change from Baseline at LS Mean (SEM)
Week 26 95% CI
QMG -5.8 (1.2)(-8.40, -3.13)na = 10
MG-ADL total score -2.3 (0.6)(-3.63, -1.03)na = 10
MGC total score -8.8 (1.9)(-12.92, -4.70)na = 10an is the number of patients at Week 26
Abbreviations: CI = confidence interval; LS = least squares; MG-ADL = Myasthenia Gravis Activities of Daily
Living profile; MGC = Myasthenia Gravis Composite; QMG = Quantitative Myasthenia Gravis score for diseaseseverity; SEM = standard error of mean; VAS = visual analog scale
In study ECU-MG-303, a clinical responder in the QMG and MG-ADL total scores was defined as havingat least a 5-point improvement and 3-point improvement from baseline, respectively. The proportion ofclinical responders in the QMG and MG-ADL total scores at Week 26 regardless of rescue therapy was 70%and 50%, respectively. The 10 patients who completed their visit at Week 26 achieved improved status of
MGFA Post-Interventional Status (MGFA-PIS) at Week 26. Seven (70%) patients achieved minimalmanifestation of refractory gMG at Week 26.
An event of clinical deterioration (MG crisis) was observed in 1 patient (9.1%) during the
Primary Evaluation Treatment Period requiring rescue therapy (PE) which was administeredbetween the Week 22 and Week 24 study visits. As a result and due to physician decision, thispatient did not have QMG, MG-ADL or other efficacy assessments after Week 20 and did notenter the extension period.Another 2 patients experienced clinical deteriorations (MG crisis)during the Extension Period requiring rescue therapy (PE and IVIg for clinical deterioration inone case and IVIg and 2 supplemental treatments of eculizumab in the second case).
During the entire study period in paediatric patients with refractory gMG (study ECU-MG-303), 4 out of11 patients (36.4%) decreased their daily dose of IST or anticholinesterase therapy due to improved MGsymptoms. An additional patient (9.1%) decreased and subsequently increased their daily dose during the
Extension Period due to improved and worsened MG symptoms respectively and 1 patient started a newcorticosteroid treatment due to worsened MG symptoms.
Long-term efficacyAll patients who completed the Primary Treatment Period (N=10) entered the Extension Period of up to208 weeks of treatment. Only two patients completed the Extension Period. Eight participantsdiscontinued the study during the Extension Period including 4 participants transitioned to eithercommercially available Soliris or Ultomiris or transferred to another ongoing Ultomiris paediatric study.
Patients consistently maintained the response through the study, which was of similar magnitude to thatreported to during the initial treatment period.
Figure 3: Change from Baseline in QMG Total Score (LS Mean and 95% CI) regardless of Rescue
Therapy) during Week 1 to Week 52 Using a Repeated Measures Model
Abbreviations:; LS=Least square; CI=Confidence Interval.
Note: Baseline is defined as the last available assessment value prior to first study drug infusion.
Note: Estimates are based on MMRM that included terms of visit and baseline value.
Mean equal to 0. A compound symmetry covariance structure was used.
Neuromyelitis Optica Spectrum DisorderThe European Medicines Agency has waived the obligation to submit the results of studies with Soliris inone or more subsets of the paediatric population in the treatment of NMOSD (see section 4.2 forinformation on paediatric use).