Takeda’s TAKHZYRO® (lanadelumab) Open Label Phase 3 Study Met Its Objectives in Children Ages 2 to <12 Years of Age With Hereditary Angioedema (HAE)

Rhea-AI Summary

Takeda announced the completion of the SHP643-301 study, a Phase 3 trial evaluating TAKHZYRO (lanadelumab) for preventing acute attacks of hereditary angioedema (HAE) in pediatric patients aged 2 to <12 years. The study met its primary and secondary objectives, demonstrating a safety profile consistent with previous trials in older patients, with no serious adverse events reported. Takeda plans to initiate a global regulatory filing for this age group within the fiscal year.

Positive

• Completion of the SHP643-301 Phase 3 study met primary and secondary objectives.
• No serious adverse events reported, indicating a favorable safety profile for TAKHZYRO.

Negative

• None.

• SHP643-301 is A Multicenter, Open-Label Phase 3 Study to Evaluate Safety, PK, Pharmacodynamics, And Clinical Activity/Outcomes of TAKHZYRO for Prevention Against Acute Attacks of HAE in Pediatric Patients 2 To <12 Years of Age
• Safety Profile Was Consistent With That Seen in the Clinical Program for Patients 12 Years and Older; There Were No Serious Adverse Events
• Global Regulatory Filing for Children Ages 2 to <12 Years of Age Planned to Begin this Fiscal Year

OSAKA, Japan & CAMBRIDGE, Mass.--(BUSINESS WIRE)-- Takeda (TSE:4502/NYSE:TAK) today announced that the Phase 3 SHP643-301 study (NCT04070326) evaluating the safety profile and pharmacokinetics (PK) of TAKHZYRO^® (lanadelumab) in patients 2 to <12 years of age is complete and has met its objectives. The safety profile was consistent with that seen in the clinical program for patients 12 years of age and older; there were no serious adverse events and no dropouts due to adverse events.¹

The study also successfully reached the secondary objective evaluating the clinical activity/outcome of TAKHZYRO in preventing hereditary angioedema (HAE) attacks as well as characterizing the pharmacodynamics of TAKHZYRO in pediatric subjects 2 to <12 years of age.

“We are encouraged by these results, as each objective met instills further confidence in the potential to bring a treatment option to this vulnerable population,” said Ashley Yegin, Global Medical Unit Head, HAE, Global Medical Affairs, Takeda. “With more than a decade of experience and innovation in HAE, Takeda is committed to continued support for patients of all ages with this devastating condition.”

“I’m pleased that TAKHZYRO has met these key objectives and I look forward to Takeda sharing further insights with the HAE community in the near future,” said Dr. Marcus Maurer, Professor of Dermatology and Allergy Charité – Universitätsmedizin Berlin, Germany and principal investigator of SHP643-301.

SHP643-301, also known as the SPRING study, is a multicenter, open-label Phase 3 study to evaluate the safety, PK and PD of TAKHZYRO for prevention against acute attacks of HAE in pediatric patients 2 to <12 years of age. Participants aged 2 to < 6 years received lanadelumab at a dose of 150 milligrams (mg) every 4 weeks (q4wks) over 52-week treatment period. Participants aged 6 to <12 years received lanadelumab at a dose of 150 mg every 2 weeks (q2wks) over 52-week treatment period. This study is complete, and full results will be presented at upcoming medical meeting(s).¹

We look forward to discussing these data with global health authorities.

About TAKHZYRO^® (lanadelumab-flyo) Injection
TAKHZYRO is a fully human monoclonal antibody that specifically binds and decreases plasma kallikrein and is indicated for routine prevention of recurrent attacks of HAE in patients aged 12 years and older. It was studied in one of the largest prevention studies in HAE with the longest active treatment duration, and TAKHZYRO consistently demonstrated HAE attack reduction. TAKHZYRO is formulated for subcutaneous administration and has a half-life of approximately two weeks. TAKHZYRO is intended for self-administration or administration by a caregiver once trained by a healthcare professional.²

TAKHZYRO Safety Information for Europe
Please consult the TAKHZYRO Summary Product Characteristics (SmPC) before prescribing.

TAKHZYRO treatment should be initiated under the supervision of a physician experienced in the management of patients with hereditary angioedema (HAE). TAKHZYRO may be self-administered or administered by a caregiver only after training on SC injection technique by a healthcare professional.³

Contraindication
Hypersensitivity to the active substance or to any of the excipients.³

Warnings and Precautions
Traceability: In order to improve the traceability of biological medicinal products, the name and the batch number of the administered product should be clearly recorded.³

Hypersensitivity reactions have been observed. In case of a severe hypersensitivity reaction, administration of TAKHZYRO must be stopped immediately and appropriate treatment must be initiated.³

General: TAKHZYRO is not intended for treatment of acute HAE attacks. In case of a breakthrough HAE attack, individualized treatment should be initiated with an approved rescue medication. There are no available clinical data on the use of lanadelumab in HAE patients with normal C1-INH activity.³

Interference with coagulation test: Lanadelumab can increase activated partial thromboplastin time (aPTT) due to an interaction of lanadelumab with the aPTT assay. The reagents used in the aPTT laboratory test initiate intrinsic coagulation through the activation of plasma kallikrein in the contact system. Inhibition of plasma kallikrein by lanadelumab can increase aPTT in this assay. None of the increases in aPTT in patients treated with TAKHZYRO were associated with abnormal bleeding adverse events. There were no differences in international normalised ratio (INR) between treatment groups.³

Sodium content: This medicinal product contains less than 1 mmol sodium (23 mg) per vial, that is to say essentially 'sodium-free'.³

Interactions
No dedicated drug-drug interaction studies have been conducted. Based on the characteristics of lanadelumab, no pharmacokinetic interactions with co-administered medicinal products is expected.³

As expected, concomitant use of the rescue medication C1 esterase inhibitor results in an additive effect on lanadelumab-cHMWK response based on the mechanism of action (MOA) of lanadelumab and C1 esterase inhibitor.³

Immunogenicity
Treatment with lanadelumab has been associated with development of treatment emergent anti-drug antibodies (ADA) in 11.9% (10/84) of subjects. All antibody titres were low. The ADA response was transient in 20% (2/10) of ADA positive subjects. 2.4% (2/84) of lanadelumab-treated subjects tested positive for neutralizing antibodies.³

The development of ADA including neutralising antibodies against TAKHZYRO did not appear to adversely affect the pharmacokinetic (PK) and pharmacodynamics (PD) profiles or clinical response.³

Immunogenicity
The most commonly observed adverse reaction (52.4%) associated with TAKHZYRO was injection site reactions (ISR) including injection site pain, injection site erythema and injection site bruising. Of these ISRs, 97% were of mild intensity, 90% resolved within 1 day after onset with a median duration of 6 minutes.³

Hypersensitivity reaction (mild and moderate pruritus, discomfort and tingling of tongue) was observed (1.2%)

Very common (frequency ≥1/10):	Injection site reactions*
Common (≥1/100 to <1/10):	Hypersensitivity**, dizziness, rash maclo-papular, myalgia, alanine aminotransferase increased, aspartate aminotransferase increased.

*Injection site reactions include: pain, erythema, bruising, discomfort, haematoma, haemorrhage, pruritus, swelling, induration, paraesthesia, reaction, warmth, oedema and rash.
** Hypersensitivity includes: pruritus, discomfort and tingling of tongue.

For European Union Summary of Product Characteristics, please visit https://www.ema.europa.eu/en/documents/product-information/takhzyro-epar-product-information_en.pdf.

For full U.S. Prescribing Information, including the approved indication and important safety information, please visit https://www.shirecontent.com/PI/PDFs/TAKHZYRO_USA_ENG.pdf.

About Hereditary Angioedema
Hereditary angioedema (HAE) is a rare genetic disorder that results in recurring attacks of oedema – swelling – in various parts of the body, including the abdomen, face, feet, genitals, hands and throat. The swelling can be debilitating and painful.^4,5,6 Attacks that obstruct the airways can cause asphyxiation and are potentially life threatening.^6,7 HAE affects an estimated 1 in 50,000 people worldwide. It is often under recognized, under diagnosed and under treated. ^4,7

Takeda in Hereditary Angioedema
Hereditary Angioedema (HAE), like so many other rare diseases, is highly complex, and patients, their families and caregivers often undergo years of strain trying to understand their disease, get a definitive diagnosis and gain access to the medicines they need. At Takeda we are a committed champion for the patients we serve. Every individual living with HAE is unique and by listening and reacting to their needs, we translate the insights we gain into innovative solutions – from diagnosis to ongoing management. Advancing the science is crucial to the way we operate and we are bold in our mission to accelerate diagnosis and develop treatments that will make a difference to the lives of HAE patients, their support networks and those medical professionals who care for them.

About Takeda
Takeda is a global, values-based, R&D-driven biopharmaceutical leader headquartered in Japan, committed to discover and deliver life-transforming treatments, guided by our commitment to patients, our people and the planet. Takeda focuses its R&D efforts on four therapeutic areas: Oncology, Rare Genetics and Hematology, Neuroscience, and Gastroenterology (GI). We also make targeted R&D investments in Plasma-Derived Therapies and Vaccines. We are focusing on developing highly innovative medicines that contribute to making a difference in people’s lives by advancing the frontier of new treatment options and leveraging our enhanced collaborative R&D engine and capabilities to create a robust, modality-diverse pipeline. Our employees are committed to improving quality of life for patients and to working with our partners in health care in approximately 80 countries and regions. For more information, visit https://www.takeda.com.

Important Notice
For the purposes of this notice, “press release” means this document, any oral presentation, any question and answer session and any written or oral material discussed or distributed by Takeda Pharmaceutical Company Limited (“Takeda”) regarding this release. This press release (including any oral briefing and any question-and-answer in connection with it) is not intended to, and does not constitute, represent or form part of any offer, invitation or solicitation of any offer to purchase, otherwise acquire, subscribe for, exchange, sell or otherwise dispose of, any securities or the solicitation of any vote or approval in any jurisdiction. No shares or other securities are being offered to the public by means of this press release. No offering of securities shall be made in the United States except pursuant to registration under the U.S. Securities Act of 1933, as amended, or an exemption therefrom. This press release is being given (together with any further information which may be provided to the recipient) on the condition that it is for use by the recipient for information purposes only (and not for the evaluation of any investment, acquisition, disposal or any other transaction). Any failure to comply with these restrictions may constitute a violation of applicable securities laws.

The companies in which Takeda directly and indirectly owns investments are separate entities. In this press release, “Takeda” is sometimes used for convenience where references are made to Takeda and its subsidiaries in general. Likewise, the words “we”, “us” and “our” are also used to refer to subsidiaries in general or to those who work for them. These expressions are also used where no useful purpose is served by identifying the particular company or companies.

Forward-Looking Statements
This press release and any materials distributed in connection with this press release may contain forward-looking statements, beliefs or opinions regarding Takeda’s future business, future position and results of operations, including estimates, forecasts, targets and plans for Takeda. Without limitation, forward-looking statements often include words such as “targets”, “plans”, “believes”, “hopes”, “continues”, “expects”, “aims”, “intends”, “ensures”, “will”, “may”, “should”, “would”, “could” “anticipates”, “estimates”, “projects” or similar expressions or the negative thereof. These forward-looking statements are based on assumptions about many important factors, including the following, which could cause actual results to differ materially from those expressed or implied by the forward-looking statements: the economic circumstances surrounding Takeda’s global business, including general economic conditions in Japan and the United States; competitive pressures and developments; changes to applicable laws and regulations, including global health care reforms; challenges inherent in new product development, including uncertainty of clinical success and decisions of regulatory authorities and the timing thereof; uncertainty of commercial success for new and existing products; manufacturing difficulties or delays; fluctuations in interest and currency exchange rates; claims or concerns regarding the safety or efficacy of marketed products or product candidates; the impact of health crises, like the novel coronavirus pandemic, on Takeda and its customers and suppliers, including foreign governments in countries in which Takeda operates, or on other facets of its business; the timing and impact of post-merger integration efforts with acquired companies; the ability to divest assets that are not core to Takeda’s operations and the timing of any such divestment(s); and other factors identified in Takeda’s most recent Annual Report on Form 20-F and Takeda’s other reports filed with the U.S. Securities and Exchange Commission, available on Takeda’s website at: https://www.takeda.com/investors/sec-filings/ or at www.sec.gov. Takeda does not undertake to update any of the forward-looking statements contained in this press release or any other forward-looking statements it may make, except as required by law or stock exchange rule. Past performance is not an indicator of future results and the results or statements of Takeda in this press release may not be indicative of, and are not an estimate, forecast, guarantee or projection of Takeda’s future results.

Medical information This press release contains information about products that may not be available in all countries, or may be available under different trademarks, for different indications, in different dosages, or in different strengths. Nothing contained herein should be considered a solicitation, promotion or advertisement for any prescription drugs including the ones under development.

References

¹Takeda DOF. SHP643-303 Topline Results. February 2022.

²TAKHZYRO^® (lanadelumab-flyo) injection Prescribing Information.

³TAKHZYRO^® (lanadelumab) European Summary of Product Characteristics

⁴Cicardi M, Bork K, Caballero T, et al; on behalf of HAWK (Hereditary Angioedema International Working Group). Evidence-based recommendations for the therapeutic management of angioedema owing to hereditary C1 inhibitor deficiency: consensus report of an International Working Group. Allergy. 2012; 67(2):147-157.

⁵Zuraw BL. Hereditary angioedema. N Engl J Med. 2008;359(10):1027-1036.

⁶Banerji A. The burden of illness in patients with hereditary angioedema. Ann Allergy Asthma Immunol. 2013;111(5):329-336.

⁷Longhurst HJ, Bork K. Hereditary angioedema: causes, manifestations, and treatment. Br J Hosp Med. 2006;67(12):654-657.

View source version on businesswire.com: https://www.businesswire.com/news/home/20220412005305/en/

Media:

Japanese Media

Ryoko Matsumoto

ryoko.matsumoto@takeda.com

+81 (0) 3-3278-3414

U.S. and International Media

Erin-Marie Beals

erin-marie.beals@takeda.com

+1 781 336 9417

Source: Takeda Pharmaceutical Company Limited

FAQ

What are the results of the SHP643-301 study for TAKHZYRO?

The SHP643-301 study successfully met its primary and secondary objectives, showing a favorable safety profile for TAKHZYRO in pediatric patients aged 2 to <12 years.

When does Takeda plan to file for regulatory approval for TAKHZYRO in children?

Takeda plans to initiate a global regulatory filing for TAKHZYRO for children ages 2 to <12 years within this fiscal year.

How does TAKHZYRO's safety profile compare in children versus older patients?

The safety profile of TAKHZYRO in the SHP643-301 study was consistent with that seen in patients aged 12 years and older, with no serious adverse events reported.

What age group was included in the SHP643-301 study for TAKHZYRO?

The SHP643-301 study included pediatric patients aged 2 to <12 years.