HEMLIBRA WAS STUDIED IN PEDIATRIC HEMOPHILIA A PATIENTS WITH AND WITHOUT FACTOR VIII INHIBITORS1,4,7,9
Children with inhibitors4
n=88
1.5 mg/kg QW, 3 mg/kg Q2W, or 6 mg/kg Q4W4
Infants without inhibitors
n=55
1.5 mg/kg QW, 3 mg/kg Q2W, or 6 mg/kg Q4W*9
Children without inhibitors
n=13
3 mg/kg Q2W or 6 mg/kg Q4W7
*Patients in the HAVEN 7 primary analysis received HEMLIBRA at a maintenance dose of 3 mg/kg Q2W for 52 weeks. After 52 weeks, patients could continue HEMLIBRA at the same dosing regimen or switch to other dosing regimens (1.5 mg/kg QW or 6 mg/kg Q4W) for the 7 year follow-up.
Based on a randomized trial (N=65) with a mean observation period of 49 months.
†Results from a multicenter, randomized, open-label trial of young boys (<30 months old) with severe hemophilia A without inhibitors randomized to regular prophylactic recombinant FVIII infusions or to an enhanced episodic infusion schedule. Clinical assessments of index joints were performed with plain-film x-rays or magnetic resonance imaging at age 6.26
The HAVEN 2 study evaluated patient-reported hemophilia-related symptoms (painful swellings and presence of joint pain) and physical functioning (pain with movement) using the Physical Health Score of the Hemophilia-specific Quality of Life Short Form (Haemo-QoL-SF) questionnaire for patients ≥8 to <12 years of age.
ABRs shown are for treated bleeds.
†ABR was calculated with a negative binomial regression model, accounting for the different follow-up times.
HAVEN 2‡: INDIVIDUAL PATIENT ABR AT A MEDIAN STUDY DURATION OF 89 WEEKS IN QW COHORT (N=15)§4
INTRA-INDIVIDUAL COMPARISON
ABRs shown are for treated bleeds.
‡Based on HAVEN 2: Non-randomized, multicenter, open-label clinical trial in pediatric patients (age <12 years, or 12–17 years who weigh <40 kg) with hemophilia A with FVIII inhibitors. All patients received HEMLIBRA prophylaxis at 3 mg/kg QW for the first 4 weeks. Sixty-eight patients received 1.5 mg/kg QW, 10 patients received 3 mg/kg Q2W, and 10 patients received 6 mg/kg Q4W thereafter.4
§A comparison of data from HAVEN 2 vs data in the NIS prior to enrollment.
Intraindividual comparison of 15 participants who previously took BPA prophylaxis showed that emicizumab prophylaxis reduced the ABR by 99% (95% CI: 97.4; 99.4).4
As observed over at least 52 weeks (HAVEN 2) and at least 24 weeks (HAVEN 4).1,4
†Based on HAVEN 4: A single-arm, multicenter, open-label trial in 41 adult and adolescent males with hemophilia A with or without FVIII inhibitors who previously received either on-demand or prophylactic treatment with FVIII or BPAs. All patients received HEMLIBRA prophylaxis at 3 mg/kg QW for the first 4 weeks followed by 6 mg/kg Q4W thereafter.1
‡HOHOEMI was a non-randomized study in pediatric patients (Japanese children <12 years) with hemophilia A without FVIII inhibitors. All patients received HEMLIBRA prophylaxis at 3 mg/kg once weekly for the first 4 weeks. Six patients received 3 mg/kg Q2W an 7 patients received 6 mg/kg Q4W thereafter.7
§ABR was calculated with a negative binomial regression model, accounting for the different follow-up times.1
ABRs shown are for treated bleeds.1
*With allowance for patients 12–17 years old who weigh <40 kg.
PATIENT BASELINE CHARACTERISTICS IN HAVEN 7 (n=55)9,28
NBDF’s MASAC recommends that infants should be considered for prophylaxis with HEMLIBRA or factor VIII at any time after birth.15
†Defined as a patient with ≤5 exposure days to FVIII.
‡The reporting period was variable across the 36 patients who had ≥1 bleed prior to receiving HEMLIBRA, with the median (min, max) age at time of first historical treated or untreated bleed being 1 (0, 49) week(s).9
MEAN HEMLIBRA TROUGH CONCENTRATIONS BY STUDY WEEK9
For the patient, whose dose was up-titrated, only data before up-titration are included.
In HAVEN 7, 55% of infants had zero treated bleeds while on HEMLIBRA prophylaxis9
HAVEN 7: INFANTS WITHOUT FVIII INHIBITORS9
These data are a descriptive analysis and therefore should be interpreted with caution.
§ABR could not be estimated via the negative binomial regression model as no treated spontaneous bleeds were observed in the study; as a result, a value of 0.0 is reported instead.
IIBleeds were categorized as traumatic if parents/caregivers recorded a bleed with a known or believed reason for the bleed.
¶Model-based ABRs were estimated using negative binomial regression.
In HAVEN 7, no new safety signals were observed
ADVERSE EVENTS (n=55)9
These data are a descriptive analysis and therefore should be interpreted with caution.
#All treatment-related AEs were Grade 1 ISRs.
**Sixteen patients reported 30 SAEs; none were considered related to HEMLIBRA, and all considered serious due to hospitalization. SAEs included: fall (n=4); head injury (n=4); bronchiolitis, bronchitis, pneumonia, tonsillitis, mouth hemorrhage, tongue hemorrhage (n=2 for each); ear infection, laryngitis, upper respiratory tract infection, urinary tract infection, viral infection, eyelid contusion, post-procedural fever (liver biopsy), post-procedural hemorrhage (tonsillectomy), skin laceration, tongue injury (n=1 for each).
††One anaphylactic reaction due to an egg allergy was reported in one patient; this event resolved and was considered not related to HEMLIBRA.
Get your questions about HEMLIBRA answered
ADA=anti-drug antibody; ABR=annualized bleed rate. ABR calculated with a negative binomial regression model, which accounts for different follow-up times; AE=adverse event; BPA=bypassing agent; CI=confidence interval; FVIII=factor VIII; ICH=intracranial hemorrhage; IQR=interquartile range; ISR=injection-site reaction; MASAC=Medical and Scientific Advisory Council; MTP=minimally treated patient; NBDF=National Bleeding Disorders Foundation; NIS=non-interventional study; PUP=previously untreated patient; QW=once weekly; Q2W=once every 2 weeks; Q4W=once every 4 weeks; SAE=serious adverse event; SD=standard deviation; TMA=thrombotic microangiopathy.
Help you determine whether HEMLIBRA is right for your patient.
HEMLIBRA package insert. South San Francisco, CA: Genentech, Inc.; 2024.
HEMLIBRA package insert. South San Francisco, CA: Genentech, Inc.; 2024.
FDA Approves Genentech’s HEMLIBRA (emicizumab-kxwh) for Hemophilia A Without Factor VIII Inhibitors. Genentech Press Release. South San Francisco, CA: Genentech; October 4, 2018.
FDA Approves Genentech’s HEMLIBRA (emicizumab-kxwh) for Hemophilia A Without Factor VIII Inhibitors. Genentech Press Release. South San Francisco, CA: Genentech; October 4, 2018.
Data on File. Genentech, Inc.
Data on File. Genentech, Inc.
Young G, Liesner R, Chang T, et al. A multicenter, open-label phase 3 study of emicizumab prophylaxis in children with hemophilia A with inhibitors. Blood. 2019;134(24):2127-2138. doi:10.1182/blood.2019001869
Young G, Liesner R, Chang T, et al. A multicenter, open-label phase 3 study of emicizumab prophylaxis in children with hemophilia A with inhibitors. Blood. 2019;134(24):2127-2138. doi:10.1182/blood.2019001869
Young G, Sidonio R, Oldenburg J, et al. Efficacy/safety in children on 2/4-weekly emicizumab prophylaxis: 52-week outcomes in HAVEN 2. Presented at the American Society of Pediatric Hematology/Oncology (ASPHO) Conference; May 4-7, 2022; Pittsburgh, Pennsylvania.
Young G, Sidonio R, Oldenburg J, et al. Efficacy/safety in children on 2/4-weekly emicizumab prophylaxis: 52-week outcomes in HAVEN 2. Presented at the American Society of Pediatric Hematology/Oncology (ASPHO) Conference; May 4-7, 2022; Pittsburgh, Pennsylvania.
Shima M, Nagao A, Taki M, et al. Long-term safety and efficacy of emicizumab for up to 5.8 years and patients’ perceptions of symptoms and daily life: A phase 1/2 study in patients with severe haemophilia A. Haemophilia. 2021;27(1):81-89. doi:10.1111/hae.14205
Shima M, Nagao A, Taki M, et al. Long-term safety and efficacy of emicizumab for up to 5.8 years and patients’ perceptions of symptoms and daily life: A phase 1/2 study in patients with severe haemophilia A. Haemophilia. 2021;27(1):81-89. doi:10.1111/hae.14205
Shima M, Nogami K, Nagami S, et al. A multicentre, open-label study of emicizumab given every 2 or 4 weeks in children with severe haemophilia A without inhibitors. Haemophilia. 2019;25(6):979-987. doi:10.1111/hae.13848
Shima M, Nogami K, Nagami S, et al. A multicentre, open-label study of emicizumab given every 2 or 4 weeks in children with severe haemophilia A without inhibitors. Haemophilia. 2019;25(6):979-987. doi:10.1111/hae.13848
Négrier C, Mahlangu J, Lehle M, et al. Emicizumab in people with moderate or mild haemophilia A (HAVEN 6): a multicentre, open-label, single-arm, phase 3 study. Lancet Haematol. 2023;10(3):e168-e177. doi:10.1016/S2352-3026(22)00377-5
Négrier C, Mahlangu J, Lehle M, et al. Emicizumab in people with moderate or mild haemophilia A (HAVEN 6): a multicentre, open-label, single-arm, phase 3 study. Lancet Haematol. 2023;10(3):e168-e177. doi:10.1016/S2352-3026(22)00377-5
Pipe SW, Collins P, Dhalluin C, et al. Emicizumab prophylaxis in infants with hemophilia A (HAVEN 7): primary analysis of a phase 3b open-label trial. Blood. 2024;143(14):1355-1364. doi:10.1182/blood.2023021832
Pipe SW, Collins P, Dhalluin C, et al. Emicizumab prophylaxis in infants with hemophilia A (HAVEN 7): primary analysis of a phase 3b open-label trial. Blood. 2024;143(14):1355-1364. doi:10.1182/blood.2023021832
Jiménez-Yuste V, Peyvandi F, Klamroth R, et al. Safety and efficacy of long-term emicizumab prophylaxis in hemophilia A with factor VIII inhibitors: A phase 3b, multicenter, single-arm study (STASEY). Res Pract Thromb Haemost. 2022;6(8):e12837. doi:10.1002/rth2.12837
Jiménez-Yuste V, Peyvandi F, Klamroth R, et al. Safety and efficacy of long-term emicizumab prophylaxis in hemophilia A with factor VIII inhibitors: A phase 3b, multicenter, single-arm study (STASEY). Res Pract Thromb Haemost. 2022;6(8):e12837. doi:10.1002/rth2.12837
Efficacy, safety, and pharmacokinetic study of prophylactic emicizumab versus no prophylaxis in hemophilia A participants (HAVEN 5). Clinicaltrials.gov identifier: NCT03315455. Updated September 25, 2024. Accessed November 19, 2024. https://clinicaltrials.gov/ct2/show/NCT03315455.
Efficacy, safety, and pharmacokinetic study of prophylactic emicizumab versus no prophylaxis in hemophilia A participants (HAVEN 5). Clinicaltrials.gov identifier: NCT03315455. Updated September 25, 2024. Accessed November 19, 2024. https://clinicaltrials.gov/ct2/show/NCT03315455.
Kitazawa T, Esaki K, Tachibana T, et al. Factor VIIIa-mimetic cofactor activity of a bispecific antibody to factors IX/IXa and X/Xa, emicizumab, depends on its ability to bridge the antigens. Thromb Haemost. 2017:117(7):1348-1357. doi:10.1160/TH17-01-0030
Kitazawa T, Esaki K, Tachibana T, et al. Factor VIIIa-mimetic cofactor activity of a bispecific antibody to factors IX/IXa and X/Xa, emicizumab, depends on its ability to bridge the antigens. Thromb Haemost. 2017:117(7):1348-1357. doi:10.1160/TH17-01-0030
Callaghan MU, Negrier C, Paz-Priel I, et al. Long-term outcomes with emicizumab prophylaxis for hemophilia A with or without FVIII inhibitors from the HAVEN 1-4 studies. Supplement. Blood. 2021;137(16):2231-2242. doi:10.1182/blood.2020009217
Callaghan MU, Negrier C, Paz-Priel I, et al. Long-term outcomes with emicizumab prophylaxis for hemophilia A with or without FVIII inhibitors from the HAVEN 1-4 studies. Supplement. Blood. 2021;137(16):2231-2242. doi:10.1182/blood.2020009217
Callaghan MU, Negrier C, Paz-Priel I, et al. Long-term outcomes with emicizumab prophylaxis for hemophilia A with or without FVIII inhibitors from the HAVEN 1-4 studies. Blood. 2021;137(16):2231-2242. doi:10.1182/blood.2020009217
Callaghan MU, Negrier C, Paz-Priel I, et al. Long-term outcomes with emicizumab prophylaxis for hemophilia A with or without FVIII inhibitors from the HAVEN 1-4 studies. Blood. 2021;137(16):2231-2242. doi:10.1182/blood.2020009217
National Bleeding Disorders Foundation. MASAC Document 268: Recommendation on the use and management of emicizumab-kxwh (HEMLIBRA) for hemophilia A with and without inhibitors. April 27, 2022; New York, NY.
National Bleeding Disorders Foundation. MASAC Document 268: Recommendation on the use and management of emicizumab-kxwh (HEMLIBRA) for hemophilia A with and without inhibitors. April 27, 2022; New York, NY.
McCary I, Guelcher C, Kuhn J, et al. Real-world use of emicizumab in patients with haemophilia A: bleeding outcomes and surgical procedures. Haemophilia. 2020;26(4):631-636. doi:10.1111/hae.14005
McCary I, Guelcher C, Kuhn J, et al. Real-world use of emicizumab in patients with haemophilia A: bleeding outcomes and surgical procedures. Haemophilia. 2020;26(4):631-636. doi:10.1111/hae.14005
Kruse-Jarres R, Peyvandi F, Oldenburg J, et al. Surgical outcomes in people with hemophilia A taking emicizumab prophylaxis: experience from the HAVEN 1-4 studies. Blood. 2022;6(24):6140-6150. doi: 10.1182/bloodadvances.2022007458
Kruse-Jarres R, Peyvandi F, Oldenburg J, et al. Surgical outcomes in people with hemophilia A taking emicizumab prophylaxis: experience from the HAVEN 1-4 studies. Blood. 2022;6(24):6140-6150. doi: 10.1182/bloodadvances.2022007458
Oldenburg J, Mahlangu JN, Kim B, et al. Emicizumab prophylaxis in hemophilia A with inhibitors. N Engl J Med. 2017;377(9):809-818. doi:10.1056/NEJMoa1703068
Oldenburg J, Mahlangu JN, Kim B, et al. Emicizumab prophylaxis in hemophilia A with inhibitors. N Engl J Med. 2017;377(9):809-818. doi:10.1056/NEJMoa1703068
Oldenburg J, Mahlangu JN, Kim B, et al. Emicizumab prophylaxis in hemophilia A with inhibitors. Supplement. N Engl J Med. 2017;377(9):809-818. doi:10.1056/NEJMoa1703068
Oldenburg J, Mahlangu JN, Kim B, et al. Emicizumab prophylaxis in hemophilia A with inhibitors. Supplement. N Engl J Med. 2017;377(9):809-818. doi:10.1056/NEJMoa1703068
Ebbert PT, Xavier F, Seaman CD, Ragni MV. Emicizumab prophylaxis in patients with haemophilia A with and without inhibitors. Haemophilia. 2020;26(1):41-46. doi:10.1111/hae.13877
Ebbert PT, Xavier F, Seaman CD, Ragni MV. Emicizumab prophylaxis in patients with haemophilia A with and without inhibitors. Haemophilia. 2020;26(1):41-46. doi:10.1111/hae.13877
Hassan E, Jonathan L, Jayashree M. Real-world experience on the tolerability and safety of emicizumab prophylaxis in paediatric patients with severe haemophilia A with and without FVIII inhibitors. Haemophilia. 2021;27(6):e698-e703. doi:10.1111/hae.14432
Hassan E, Jonathan L, Jayashree M. Real-world experience on the tolerability and safety of emicizumab prophylaxis in paediatric patients with severe haemophilia A with and without FVIII inhibitors. Haemophilia. 2021;27(6):e698-e703. doi:10.1111/hae.14432
Schmitt C, Emrich T, Chebon S, et al. Low immunogenicity of emicizumab in persons with haemophilia A. Haemophilia. 2021;27(6):984-992. doi:10.1111/hae.14398
Schmitt C, Emrich T, Chebon S, et al. Low immunogenicity of emicizumab in persons with haemophilia A. Haemophilia. 2021;27(6):984-992. doi:10.1111/hae.14398
Mahlangu J, Jiménez-Yuste V, Ventriglia G, et al. Long-term outcomes with emicizumab in hemophilia A without inhibitors: results from the HAVEN 3 and 4 studies. Res Pract Thromb Haemost. 2024;8(2):102364. doi:10.1016/j.rpth.2024.102364
Mahlangu J, Jiménez-Yuste V, Ventriglia G, et al. Long-term outcomes with emicizumab in hemophilia A without inhibitors: results from the HAVEN 3 and 4 studies. Res Pract Thromb Haemost. 2024;8(2):102364. doi:10.1016/j.rpth.2024.102364
Di Minno A, Spadarella G, Nardone A, et al. Attempting to remedy sub-optimal medication adherence in haemophilia: the rationale for repeated ultrasound visualisations of the patient’s joint status. Blood Rev. 2019;33:106-116. doi:10.1016/j.blre.2018.08.003
Di Minno A, Spadarella G, Nardone A, et al. Attempting to remedy sub-optimal medication adherence in haemophilia: the rationale for repeated ultrasound visualisations of the patient’s joint status. Blood Rev. 2019;33:106-116. doi:10.1016/j.blre.2018.08.003
Schrijvers LH, Schuurmans MJ, Fischer K. Promoting self-management and adherence during prophylaxis: evidence-based recommendations for haemophilia professionals. Haemophilia. 2016;22(4):499-506. doi:10.1111/hae.12904
Schrijvers LH, Schuurmans MJ, Fischer K. Promoting self-management and adherence during prophylaxis: evidence-based recommendations for haemophilia professionals. Haemophilia. 2016;22(4):499-506. doi:10.1111/hae.12904
Manco-Johnson MJ, Abshire TC, Shapiro AD, et al. Prophylaxis versus episodic treatment to prevent joint disease in boys with severe hemophilia. N Engl J Med. 2007;357(6):535-544. doi:10.1056/NEJMoa067659
Manco-Johnson MJ, Abshire TC, Shapiro AD, et al. Prophylaxis versus episodic treatment to prevent joint disease in boys with severe hemophilia. N Engl J Med. 2007;357(6):535-544. doi:10.1056/NEJMoa067659
National Bleeding Disorders Foundation. MASAC Document 267: MASAC Recommendation Concerning Prophylaxis for Hemophilia A and B with and without Inhibitors. April 27, 2022; New York, NY.
National Bleeding Disorders Foundation. MASAC Document 267: MASAC Recommendation Concerning Prophylaxis for Hemophilia A and B with and without Inhibitors. April 27, 2022; New York, NY.
Pipe S, Collins P, Dhalluin C, et al. Emicizumab Prophylaxis in Infants with Severe Hemophilia A without Factor VIII Inhibitors: Results from the Primary Analysis of the HAVEN 7 Study. Slide deck presented at: 65th ASH Annual Meeting; December 9-12, 2023; San Diego, California.
Pipe S, Collins P, Dhalluin C, et al. Emicizumab Prophylaxis in Infants with Severe Hemophilia A without Factor VIII Inhibitors: Results from the Primary Analysis of the HAVEN 7 Study. Slide deck presented at: 65th ASH Annual Meeting; December 9-12, 2023; San Diego, California.
Ljung R, de Kovel M, van den Berg HM on behalf of the PedNet study group. Primary prophylaxis in children with severe haemophilia A and B—Implementation over the last 20 years as illustrated in real-world data in the PedNet cohorts. Haemophilia. 2023;29(2):498-504. doi:10.1111/hae.14729
Ljung R, de Kovel M, van den Berg HM on behalf of the PedNet study group. Primary prophylaxis in children with severe haemophilia A and B—Implementation over the last 20 years as illustrated in real-world data in the PedNet cohorts. Haemophilia. 2023;29(2):498-504. doi:10.1111/hae.14729
Mahlangu J, Oldenburg J, Paz-Priel I, et al. Emicizumab prophylaxis in patients who have hemophilia A without inhibitors. N Engl J Med. 2018;379(9):811-822. doi:10.1056/NEJMoa1803550
Mahlangu J, Oldenburg J, Paz-Priel I, et al. Emicizumab prophylaxis in patients who have hemophilia A without inhibitors. N Engl J Med. 2018;379(9):811-822. doi:10.1056/NEJMoa1803550
HEMLIBRA Summary of Product Characteristics. Roche Registration Limited; 2022.
HEMLIBRA Summary of Product Characteristics. Roche Registration Limited; 2022.
Kruse-Jarres R, Peyvandi F, Oldenburg J, et al. Surgical outcomes in people with hemophilia A taking emicizumab prophylaxis: experience from the HAVEN 1-4 studies. Supplementary materials. Blood Adv. 2022;6(24):6140-6150. doi:10.1182/bloodadvances.2022007458
Kruse-Jarres R, Peyvandi F, Oldenburg J, et al. Surgical outcomes in people with hemophilia A taking emicizumab prophylaxis: experience from the HAVEN 1-4 studies. Supplementary materials. Blood Adv. 2022;6(24):6140-6150. doi:10.1182/bloodadvances.2022007458
HEMLIBRA Instructions For Use. Roche Registration Limited; 2022.
HEMLIBRA Instructions For Use. Roche Registration Limited; 2022.
Doyle GR, McCutcheon JA. Clinical Procedures for Safer Patient Care. Victoria, BC: BCcampus. 2015. Retrieved from https://opentextbc.ca/clinicalskills/
Doyle GR, McCutcheon JA. Clinical Procedures for Safer Patient Care. Victoria, BC: BCcampus. 2015. Retrieved from https://opentextbc.ca/clinicalskills/
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