Acute attacks
Sudden attacks of hereditary angioedema.
Clinical trials
Studies that evaluate the effectiveness and safety of medications or medical devices before they are approved for use by the general public.
Ecallantide (e-KAL-lan-tide)
A protein made in yeast cells; ecallantide is the active ingredient in KALBITOR (ecallantide).
Abbreviation for hereditary angioedema.
Hereditary Angioedema
A rare, hereditary disease of the immune system that causes attacks of sudden swelling in various parts of the body.
KALBITOR Home Infusion Services®
KALBITOR Home Infusion Services is a program in which an experienced infusion nurse will administer your subcutaneous KALBITOR treatment in the comfort of your own home. This professional service is available to HAE patients, 12 years of age or older, who use KALBITOR to treat their sudden HAE attacks on demand. KALBITOR Home Infusion Services is not appropriate for treating laryngeal attacks.
KALBITOR® (KAL-bit-or)
A prescription medicine used to treat sudden attacks of hereditary angioedema in patients 12 years of age and older. KALBITOR® is not a cure for HAE.
Laryngeal attack
An HAE attack that affects the larynx (throat); this can block or close the airway, leading to difficulty breathing and, potentially, death.
The part of the throat that contains the vocal cords and is used for breathing, swallowing, and talking.
On-demand treatment
On-demand HAE treatment is used to treat sudden attacks of HAE as they occur, in order to relieve symptoms associated with the attack. On-demand treatment is not used to prevent attacks from occurring.
PATHWAYS 360 is a program that provides comprehensive, personalized support services to hereditary angioedema patients. Each patient works with a program case manager who guides the patient through their entire treatment journey with KALBITOR® (ecallantide), including health insurance support, financial assistance, treatment location coordination, and much more.
Plasma kallikrein (kal'i-kre'in)
A protein in the body that triggers the release of a substance that may lead to hereditary angioedema attack symptoms.
Under the skin.
In hereditary angioedema, something that causes an attack.
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Privacy Policy

This Policy applies to residents of the United States.

At Dyax Corp., we are committed to respecting your privacy. We understand that facts about a person's demographic, health, health interests, and health care are private and sensitive, and we know that you may have concerns about sharing information with us. This Privacy Policy is designed to answer your important questions about privacy and how we use the information you provide to us, and how we protect this information from unauthorized use or disclosure.

Why does Dyax need personal information?

As part of its overall mission, Dyax endeavors to understand the specific needs and preferences of individuals. We use personal information to identify these needs and preferences in order to help us design the informational, educational and support services for you.

What type of information does Dyax collect?

We only collect information that you voluntarily provide to us. If you choose to participate in certain programs and activities conducted by Dyax, we may collect "personally identifiable information" from you, such as your name, address, telephone number, and email address that could be used to contact you. When this information is combined with any information on your health or medical status (pursuant to all applicable laws), we refer to the resulting information as "health-related personal information." You may choose at any time not to provide personally identifiable information or health-related personal information, although this may restrict your ability to participate in certain programs and activities conducted by Dyax, as well as to provide requested services or information. The following are examples of when we may request personally identifiable information and/or health-related personal information that you may voluntarily provide to us and how we use it.

  • Registration: If you complete a registration form that we e-mail to you or that you obtain from our Website, we will use the personally identifiable information and/or health-related personal information in such forms to process your request for services and information. Personally identifiable information and health-related personal information may also be used if you request to receive certain information from Dyax. We may use this information to send you a welcome email; to verify your username and password; to provide information about Website updates, special offers; and to provide other responsive information to the data you share with us. Additionally, we may refer to your personally identifiable information to better understand your needs and create customized offers, information, and services tailored to your interests and preferences.
  • Questionnaires and Surveys: From time to time, we may establish certain interactive services, such as health questionnaires and care management tools that ask you to furnish health-related personal information about you or your family. If you choose to participate in our interactive services, we will collect the information you may choose to disclose and analyze it to discover new facts that could help us better understand how our products are used in coping with the diseases for which they are marketed. In certain circumstances, we may also combine your health-related personal information with health-related personal information obtained from others to create summary data, but in such cases we will continue to treat such summary data in a manner consistent with this Privacy Policy.
  • Notifications and Newsletters: We may use information obtained from you, such as contact information (name and email address), to complete your submitted request to receive specific company information, such as e-mail notifications, literature requests, and newsletter subscriptions.
  • Information for Referrals: If you elect to use our referral services and provide information for us to contact a family member or friend, we may use the personally identifiable information obtained from you regarding your family member or friend to send them a one-time request inviting them to visit our Website or otherwise contact us for further information. Personally identifiable information provided by you may also be used to inform the recipient of your name. We may store this information for the purpose of sending this invitation.
  • Social Media: We may collect personal information from you to enable you to use online social media resources we may occasionally offer to you. When using any social media resources, you should take into careful consideration what information about yourself you choose to share with others.

Dyax maintains voluntarily provided personally identifiable information and health-related personal information in an electronic database. By voluntarily providing such information to us, you are hereby consenting to the use of such information by Dyax in a manner consistent with this Privacy Policy.

In addition to personally identifiable information and health-related personal information that you voluntarily provide to us, we may collect the following additional information from anyone who visits our Website through the internet.

  • IP Address: We record the Internet Protocol (IP) address of your computer when you visit our site. The IP address does not identify you personally, but it does allow us to maintain communications with you as you move about our site.
  • Cookies: We also collect information about your use of our site through cookies and similar technology. A "cookie" is a unique numeric code that we transfer to your computer so that we can keep track of your interests and preferences and recognize you as a return visitor to our site. Cookie technology allows us to collect certain data which reflects your activities on the site, including your interest in certain health care conditions. A cookie does not collect or keep your name or other personal identifying information, but when you revisit our site the cookie allows us to bring you the content and features likely to be of greatest interest to you based on your previous activities on our site.

How will Dyax protect my personal information?

To prevent unauthorized access and ensure proper use of your personally identifiable information and health-related personal information, Dyax employs appropriate physical, electronic, and managerial procedures to safeguard and secure the information we collect. Furthermore, all personally identifiable information and health-related personal information we obtain is retained for no longer than is necessary, depending on the purpose for which it is held.


We take commercially reasonable steps to protect your personally identifiable information as you transmit your information from your computer to our site and to protect such information from loss, misuse, unauthorized access, disclosure, alteration, or destruction. You should keep in mind that no Internet transmission is ever 100% secure or error-free. In particular, e-mail sent to or from this site may not be secure, and you should therefore take special care in deciding what information you send to us via e-mail. Moreover, where you use passwords, ID numbers, or other special access features on this site, it is your responsibility to safeguard them.

Will Dyax share my personal information with others?

Dyax will only share your personally identifiable information and/or health-related personal information with individuals or organizations with whom we are working to develop or deliver products or services. We require any organization to which we provide such personally identifiable information to keep your personally identifiable information confidential in accordance with this Privacy Policy.

We may also disclose your personally identifiable information and/or health-related personal information if we reasonably believe we are required to do so by law, regulation or other government authority (such as reporting safety information to the Food and Drug Administration). We may disclose or be required to disclose personally identifiable information and/or health-related personal information in the event our company is merged or acquired to the merger or acquiring entity.

We do not sell, loan, trade, lease or otherwise disseminate any personally identifiable information or health-related personal information that we collect.

What is Dyax's contact address for privacy questions?

Should you have questions about this policy or Dyax's information collection, use and disclosure practices, you may contact us via email at the following address: Alternatively you may send a letter to the following address:

Dyax Corp.

ATTN: Legal

55 Network Drive

Burlington, MA 01803-2756

(617) 225-2500

If you would like to delete or amend your personal information and are contacting us by e-mail, please put "Deletion Request" or "Amendment Request" as applicable in the subject line of the email. We will use our best efforts to respond promptly to requests, questions or concerns you may have regarding our use of personal information about you. Except where required by law, Dyax cannot ensure a response to questions or comments regarding topics unrelated to this policy or Dyax's privacy practices.

Additional Aspects of Dyax's Privacy Policy:

Children's Privacy

Dyax does not knowingly use its website or other online tools to collect personally identifiable information or health-related personal information from children under the age of 13. If we learn that we have collected personally identifiable information through the Dyax website about a child under the age of 13 we will delete that information. If you are under the age of 13 and wish to register online to obtain further information or be included in an online survey, your parent or legal guardian must register.

Links to Third Party Sites

The Dyax website may contain links to other websites on the Internet that are not under the control of or maintained by Dyax. Such links do not constitute an endorsement by Dyax of those other websites, the content displayed therein, or the persons or entities associated therewith. You acknowledge that Dyax is providing these links to you only as a convenience, and you agree that we are not responsible for the content of such websites. Your use of these other linked websites is subject to the respective terms of use and privacy policies located on the linked websites.

Right to Know and Opt-Out

We reserve the right to send you specific notices about your account or to contact you if required by law. You may also receive, with your prior consent, periodic site newsletters by email. Additional information about our other services and products will be sent to you only if you have expressly chosen to receive such information. If you do not wish to receive site newsletters or additional information you may remove yourself from communication lists easily by contacting us at the following address:

Dyax Corp.

ATTN: Legal

55 Network Drive

Burlington, MA 01803-2756

(617) 225-2500

Privacy Policy Updates

Dyax may need to update this Privacy Policy from time to time. If so, Dyax will post its updated Privacy Policy on our website located at so users are always aware of what personally identifiable information we may collect and how we may use this information. We may also mail or email you a copy if appropriate. Dyax encourages you to review this Privacy Policy regularly for any changes.

Dated: November 1, 2014

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KALBITOR is a prescription medicine used to treat sudden attacks of hereditary angioedema (HAE) in people 12 years of age and older. KALBITOR is not a cure for HAE.
Important Safety Information

KALBITOR® (ecallantide) for subcutaneous use should only be given by a doctor or nurse with appropriate medical support to treat serious allergic reactions and your hereditary angioedema. You should read the Medication Guide before you start receiving KALBITOR and before each treatment.

Serious allergic reactions may happen in some people who receive KALBITOR. These allergic reactions can be life-threatening and usually happen within 1 hour after receiving KALBITOR.

Symptoms of a serious allergic reaction to KALBITOR can be similar to the symptoms of hereditary angioedema, the condition that you are being treated for. Your doctor or nurse should watch you for any signs of a serious allergic reaction after treatment with KALBITOR. Tell your doctor or nurse right away if you have any of these symptoms of a serious allergic reaction during or after treatment with KALBITOR:

  • wheezing, shortness of breath, cough, chest tightness, or trouble breathing
  • dizziness, fainting, fast or weak heartbeat, or feeling nervous
  • reddening of the face, itching, hives, or feeling warm
  • swelling of the throat or tongue, throat tightness, hoarse voice, or trouble swallowing
  • runny nose, nasal congestion or sneezing

Do not receive KALBITOR if you are allergic to KALBITOR. Before receiving KALBITOR, tell your doctor if you have ever had an allergic reaction to KALBITOR.

Before receiving KALBITOR, tell your doctor about all of your health conditions, including any allergies you may have, whether you are pregnant, plan to become pregnant, or are breast feeding or plan to breast feed. It is not known if KALBITOR will harm your unborn baby or if KALBITOR passes into your breast milk. Tell your doctor about all the medicines you take, including prescription and over-the-counter medicines, vitamins and herbal supplements.

Common side effects of KALBITOR include headache, nausea, diarrhea, fever, injection site reactions, such as redness, rash, swelling, itching, or bruising, and stuffy nose.

Talk to your doctor for more information and if you have any questions about your treatment.

Please see the Full Prescribing Information, including Boxed Warning and Medication Guide.

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit, or call 1-800-FDA-1088.