FIX

Gene therapy for hemophilia B offers long-term bleed protection with a one-time infusion

admin September 24, 2023

This is a paid public announcement from CSL Behring and does not constitute an endorsement of products or services. When you click on the links in this blog entry, you will be directed to the CSL Behring website. LA Kelley Communications always advises you to be a savvy consumer when contacting any company; do not reveal identifying information against your will.

The current standard of care for moderate to severe hemophilia B, factor IX prophylactic therapy, does offer bleed protection. However, it requires lifelong, routine infusions to maintain protective factor levels, and those who regularly infuse factor IX replacement products can still experience breakthrough bleeds, leading to joint damage, pain, and reduced quality of life. There is a need for a treatment option that offers consistent bleed protection with a one-time infusion that lasts years instead of weeks.

After years of scientific research and clinical studies, that option is here—HEMGENIX® (etranacogene dezaparvovec-drlb), the first and only gene therapy for hemophilia B.*

Hemophilia B is an appropriate target for treatment with gene therapy

Hemophilia B is caused by a mutation of a single gene—the F9 gene. Approaches using gene therapy to treat inherited conditions stemming from a single genetic mutation, including hemophilia B, have predominantly focused on the delivery of a working, or functional, gene using a viral vector.

Hemophilia B is an appropriate target for treatment with gene therapy because it is caused by a mutation of a single gene, the F9 gene, which is small enough that it can be packaged into an adeno-associated viral (AAV) vector.

How HEMGENIX gene therapy for hemophilia B works

HEMGENIX uses a gene therapy approach called gene transfer. Gene transfer therapy for hemophilia B starts by developing a package of genetic instructions—the functional, or working, gene. Then AAV vectors are created, which will eventually enter targeted liver cells. The package of genetic instructions is loaded into an AAV vector shell, acting as a delivery truck. Through a single IV infusion, the delivery truck heads toward the liver with its package.

Once delivered into the liver cells, the package of instructions is unloaded, enabling the liver to start generating factor IX, with the goal of allowing a person to produce their own elevated and protective levels of factor IX. After delivering its package, the AAV vector shell is broken down and eliminated. However, the genetic instructions remain to continue producing factor IX.

Built on science you can trust

Gene therapy is built on decades of clinical research. The first patients received gene therapy in 1970, and there are more than 250 AAV-based clinical trials currently underway across a variety of conditions. So not only is gene therapy with HEMGENIX EMHa great fit for hemophilia B, it’s based on years of scientific research.

Interested in learning more about the science behind HEMGENIX, a one-time infusion that offers years of consistent bleed protection? Explore all that gene therapy might offer for people with hemophilia B today!

*HEMGENIX was studied in a clinical trial of 54 male adults with moderately severe or severe hemophilia B. All people in the trial were taking factor IX prophy to treat their hemophilia B and were observed for at least 6 months on prophy before receiving HEMGENIX.

†AAV5, adeno-associated viral vector serotype 5.

IMPORTANT SAFETY INFORMATION

What is HEMGENIX?

HEMGENIX®, etranacogene dezaparvovec-drlb, is a one-time gene therapy for the treatment of adults with hemophilia B who:

  • Currently use Factor IX prophylaxis therapy, or
  • Have current or historical life-threatening bleeding, or
  • Have repeated, serious spontaneous bleeding episodes.

HEMGENIX is administered as a single intravenous infusion and can be administered only once.

What medical testing can I expect to be given before and after administration of HEMGENIX?

To determine your eligibility to receive HEMGENIX, you will be tested for Factor IX inhibitors. If this test result is positive, a retest will be performed 2 weeks later. If both tests are positive for Factor IX inhibitors, your doctor will not administer HEMGENIX to you. If, after administration of HEMGENIX, increased Factor IX activity is not achieved, or bleeding is not controlled, a post-dose test for Factor IX inhibitors will be performed.

HEMGENIX may lead to elevations of liver enzymes in the blood; therefore, ultrasound and other testing will be performed to check on liver health before HEMGENIX can be administered. Following administration of HEMGENIX, your doctor will monitor your liver enzyme levels weekly for at least 3 months. If you have preexisting risk factors for liver cancer, regular liver health testing will continue for 5 years post-administration. Treatment for elevated liver enzymes could include corticosteroids.

What were the most common side effects of HEMGENIX in clinical trials?

In clinical trials for HEMGENIX, the most common side effects reported in more than 5% of patients were liver enzyme elevations, headache, elevated levels of a certain blood enzyme, flu-like symptoms, infusion-related reactions, fatigue, nausea, and feeling unwell. These are not the only side effects possible. Tell your healthcare provider about any side effect you may experience.

What should I watch for during infusion with HEMGENIX?

Your doctor will monitor you for infusion-related reactions during administration of HEMGENIX, as well as for at least 3 hours after the infusion is complete. Symptoms may include chest tightness, headaches, abdominal pain, lightheadedness, flu-like symptoms, shivering, flushing, rash, and elevated blood pressure. If an infusion-related reaction occurs, the doctor may slow or stop the HEMGENIX infusion, resuming at a lower infusion rate once symptoms resolve.

What should I avoid after receiving HEMGENIX?

Small amounts of HEMGENIX may be present in your blood, semen, and other excreted/secreted materials, and it is not known how long this continues. You should not donate blood, organs, tissues, or cells for transplantation after receiving HEMGENIX.

Please see full prescribing information [LINK TO: https://labeling.cslbehring.com/PI/US/Hemgenix/EN/Hemgenix-Prescribing-Information.pdf] for HEMGENIX.

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch [LINK TO: www.fda.gov/medwatch], or call 1-800-FDA-1088.

You can also report side effects to CSL Behring’s Pharmacovigilance Department at 1-866-915-6958.

HEMGENIX is manufactured by uniQure Inc. and distributed by CSL Behring LLC. HEMGENIX® is a registered trademark of CSL Behring LLC.

©2023 CSL Behring LLC 1020 First Avenue, PO Box 61501, King of Prussia, PA 19406-0901 USA

www.CSLBehring.com USA-HGX-0464-MAY23

Gene therapy for hemophilia B offers long-term bleed protection with a one-time infusion

admin June 18, 2023

This is a paid public announcement from CSL Behring and does not constitute an endorsement of products or services. When you click on the links in this blog entry, you will be directed to the CSL Behring website. LA Kelley Communications always advises you to be a savvy consumer when contacting any company; do not reveal identifying information against your will.

The current standard of care for moderate to severe hemophilia B, factor IX prophylactic therapy, does offer bleed protection. However, it requires lifelong, routine infusions to maintain protective factor levels, and those who regularly infuse factor IX replacement products can still experience breakthrough bleeds, leading to joint damage, pain, and reduced quality of life. There is a need for a treatment option that offers consistent bleed protection with a one-time infusion that lasts years instead of weeks.

After years of scientific research and clinical studies, that option is here—HEMGENIX® (etranacogene dezaparvovec-drlb), the first and only gene therapy for hemophilia B.*

Hemophilia B is an appropriate target for treatment with gene therapy

Hemophilia B is caused by a mutation of a single gene—the F9 gene. Approaches using gene therapy to treat inherited conditions stemming from a single genetic mutation, including hemophilia B, have predominantly focused on the delivery of a working, or functional, gene using a viral vector.

Hemophilia B is an appropriate target for treatment with gene therapy because it is caused by a mutation of a single gene, the F9 gene, which is small enough that it can be packaged into an adeno-associated viral (AAV) vector.

How HEMGENIX gene therapy for hemophilia B works

HEMGENIX uses a gene therapy approach called gene transfer. Gene transfer therapy for hemophilia B starts by developing a package of genetic instructions—the functional, or working, gene. Then AAV vectors are created, which will eventually enter targeted liver cells. The package of genetic instructions is loaded into an AAV vector shell, acting as a delivery truck. Through a single IV infusion, the delivery truck heads toward the liver with its package.

Once delivered into the liver cells, the package of instructions is unloaded, enabling the liver to start generating factor IX, with the goal of allowing a person to produce their own elevated and protective levels of factor IX. After delivering its package, the AAV vector shell is broken down and eliminated. However, the genetic instructions remain to continue producing factor IX.

Built on science you can trust

Gene therapy is built on decades of clinical research. The first patients received gene therapy in 1970, and there are more than 250 AAV-based clinical trials currently underway across a variety of conditions. So not only is gene therapy with HEMGENIX EMHa great fit for hemophilia B, it’s based on years of scientific research.

Interested in learning more about the science behind HEMGENIX, a one-time infusion that offers years of consistent bleed protection? Explore all that gene therapy might offer for people with hemophilia B today!

*HEMGENIX was studied in a clinical trial of 54 male adults with moderately severe or severe hemophilia B. All people in the trial were taking factor IX prophy to treat their hemophilia B and were observed for at least 6 months on prophy before receiving HEMGENIX.

†AAV5, adeno-associated viral vector serotype 5.

IMPORTANT SAFETY INFORMATION

What is HEMGENIX?

HEMGENIX®, etranacogene dezaparvovec-drlb, is a one-time gene therapy for the treatment of adults with hemophilia B who:

  • Currently use Factor IX prophylaxis therapy, or
  • Have current or historical life-threatening bleeding, or
  • Have repeated, serious spontaneous bleeding episodes.

HEMGENIX is administered as a single intravenous infusion and can be administered only once.

What medical testing can I expect to be given before and after administration of HEMGENIX?

To determine your eligibility to receive HEMGENIX, you will be tested for Factor IX inhibitors. If this test result is positive, a retest will be performed 2 weeks later. If both tests are positive for Factor IX inhibitors, your doctor will not administer HEMGENIX to you. If, after administration of HEMGENIX, increased Factor IX activity is not achieved, or bleeding is not controlled, a post-dose test for Factor IX inhibitors will be performed.

HEMGENIX may lead to elevations of liver enzymes in the blood; therefore, ultrasound and other testing will be performed to check on liver health before HEMGENIX can be administered. Following administration of HEMGENIX, your doctor will monitor your liver enzyme levels weekly for at least 3 months. If you have preexisting risk factors for liver cancer, regular liver health testing will continue for 5 years post-administration. Treatment for elevated liver enzymes could include corticosteroids.

What were the most common side effects of HEMGENIX in clinical trials?

In clinical trials for HEMGENIX, the most common side effects reported in more than 5% of patients were liver enzyme elevations, headache, elevated levels of a certain blood enzyme, flu-like symptoms, infusion-related reactions, fatigue, nausea, and feeling unwell. These are not the only side effects possible. Tell your healthcare provider about any side effect you may experience.

What should I watch for during infusion with HEMGENIX?

Your doctor will monitor you for infusion-related reactions during administration of HEMGENIX, as well as for at least 3 hours after the infusion is complete. Symptoms may include chest tightness, headaches, abdominal pain, lightheadedness, flu-like symptoms, shivering, flushing, rash, and elevated blood pressure. If an infusion-related reaction occurs, the doctor may slow or stop the HEMGENIX infusion, resuming at a lower infusion rate once symptoms resolve.

What should I avoid after receiving HEMGENIX?

Small amounts of HEMGENIX may be present in your blood, semen, and other excreted/secreted materials, and it is not known how long this continues. You should not donate blood, organs, tissues, or cells for transplantation after receiving HEMGENIX.

Please see full prescribing information [LINK TO: https://labeling.cslbehring.com/PI/US/Hemgenix/EN/Hemgenix-Prescribing-Information.pdf] for HEMGENIX.

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch [LINK TO: www.fda.gov/medwatch], or call 1-800-FDA-1088.

You can also report side effects to CSL Behring’s Pharmacovigilance Department at 1-866-915-6958.

HEMGENIX is manufactured by uniQure Inc. and distributed by CSL Behring LLC. HEMGENIX® is a registered trademark of CSL Behring LLC.

©2023 CSL Behring LLC 1020 First Avenue, PO Box 61501, King of Prussia, PA 19406-0901 USA

www.CSLBehring.com USA-HGX-0464-MAY23

A Promising Future with Hemophilia B

Laurie Kelley May 4, 2014

 

I’ve always been an admirer of John Taylor, and I’ve known him since both our boys with hemophilia were born in the
1980s. His story is so inspiring! I am pleased to share some of his trials and triumphs, as well as his outlook on hemophilia B and the factor IX product he is helping to bring to market. 
John Taylor Sr.
 
————————————————————————

by John Taylor Sr.

Nearly 25 years ago when our son, John Taylor Jr., was born, my wife Joyce and I were informed that he had hemophilia B. This diagnosis changed our lives. When your child has hemophilia, it’s all encompassing. As a family, you struggle through it every day. But what started as an unknown,
daunting journey has developed into an expedition of hope.

 
In 1990, we were told that there were few treatment options for John. Determined to find the right
treatment and support for ourselves and other families coping with hemophilia B, we reached out to the scientific community. This quest led me to incredible passages in life—founding the Coalition for Hemophilia B in 1990, becoming an activist for FDA approval of additional factor treatments, and starting a company dedicated to advancing access to hemophilia B treatment.
 
That company was called Inspiration Biopharmaceuticals, which our family co-founded with Scott Martin, another father of a son with hemophilia. Our mission was to bring product choice and access to the hemophilia B community. Because we understood the impact of this condition on our own families—as well as many other families we met also coping with hemophilia—we were determined to start a company that would address the concerns we were all living with. Thanks in part to our work, a lot has changed for families living with hemophilia B.
 
When Emergent BioSolutions, a company whose goal is to improve the lives of people with rare conditions, acquired the recombinant Factor IX we were developing, families felt empowered knowing that there was now a company that was working directly for us. 
 
One demand that is finally being addressed by pharmaceutical companies is treatment choice. Soon, people with hemophilia B will have even more product choices for bleed control and prevention than ever before.
 
One product I am particularly excited about is IB1001, from Emergent BioSolutions. IB1001 is a recombinant factor IX product that began
development at Inspiration Biopharmaceuticals. I am so proud to see Emergent continue the work we began at Inspiration, and to know that they are seeking to gain approval for IB1001. Emergent’s focus on developing treatments for rare conditions and blood disorders and their experience

in addressing the needs of small patient populations makes them a welcomed addition to the companies serving the hemophilia B community.

 
Emergent’s mission is simple—to protect and enhance life.  Although they are new to the hemophilia community, their commitment to IB1001 and to improving the lives of patients with hemophilia B makes me eager to see them bring to market a product I believe in so strongly.
 
When I reflect on this journey, I can honestly say that every stop along the way—and every person I’ve met from our community—have added incredible value to my life. My son and this amazing community have given me the drive and determination to keep going. When a company like Emergent comes along and commits to understanding and responding to the needs of the hemophilia B community, I can confidently say that my journey has been worthwhile. With dedication and the commitment that come from having lived with the condition, and a thorough knowledge of our
community, we are proud to have been part of the development of a new recombinant factor IX product. Standing with you, from a family like yours. This is a journey we are taking with all of you.
 
 
 John’s work on behalf of the hemophilia B community continues to make a positive impact. If you’d like to learn more about IB1001, the product he helped develop, and Emergent BioSolutions’ efforts to finish the work John began, please visit www.ebsi.com/hemophiliab. To learn more about the Coalition for Hemophilia B, visit http://coalitionforhemophiliab.org


This is a sponsored public awareness notice.
 

Merry Christmas! (disease)

Laurie Kelley December 26, 2011

I wish everyone a Merry Christmas and joyous new year.

Christmas reminds me that factor IX deficiency is also known as “Christmas disease.” Did you know that the name has nothing to do with the holiday?

The name comes from the first person properly diagnosed with factor IX deficiency, a Mr. Stephen Christmas, born a British citizen in 1947, who emigrated with his family to Canada. He was diagnosed at age 2 with hemophilia (no type yet). On a return visit to England in 1952 Stephen was diagnosed by the Oxford Haemophilia Centre as not having a normal case of hemophilia. Research led to a new classification, called factor IX due to the low levels or absence of factor IX protein in the blood. This eventually led to many others being properly diagnosed. Although Stephen later contracted HIV, he became an advocate for the screening of donated blood to increase the safety of transfusions and infusions.

And he went down in history: the new disorder was named after him!

Interesting Book I Just Read
I, Steve: Steve Jobs in His Own Words
George Beahm

I was too intimidated at first to read the new Steve Jobs book by Walter Issacson, so I settled for a short and sweet book. Well, it’s short! It is a collection of quotations by Steve Jobs, about business and life. It’s nice in that it’s a quick read, and you can go back and browse through it. Many of the quotations seem to be space fillers, and trite, shedding no light on Jobs or on anything! But some of it is good. I suspect you could get a lot of this on line, and save a few bucks.

Also, I finally finished Steve Jobs, which I will write about next week, and it makes I, Steve present Jobs as a savvy and wise man, sugar-coated all the way. To know the real Steve Jobs, read the Issacson book. For snippets, this is fine. Two stars/five.

HemaBlog Archives
Categories