HyQvia is a liquid medicine that is given under the skin (subcutaneously) to treat primary immunodeficiency (PI) in people 2 years and older.
When it comes to success in managing PI, less is more.
HyQvia® [Immune Globulin Infusion 10% (Human) with Recombinant Human Hyaluronidase] was studied in a clinical trial of 83 people living with PI, with the main goal of measuring how many acute serious bacterial infections (ASBIs) they experienced over the course of 1 year.
Not familiar with ASBIs? They’re short-term but serious infections caused by bacteria that require immediate medical care. The FDA standard for efficacy—that is, if an immunoglobulin works—is less than 1 ASBI per year. In the clinical trial, people taking HyQvia experienced significantly less than that.
The study showed:
0.025
serious infections per year
This is equivalent to 25 acute serious bacterial infections (ASBIs) out of 1,000 patients over the course of the 12-month study period.
ASBIs included 2 episodes of pneumonia. Both episodes were treated as outpatients with oral antibiotics. An additional episode of pneumonia requiring hospitalization occurred during the ramp-up.
0 days
in the hospital per year
There was a mean of 0.037 days spent in the hospital due to infection during the study.
<4 days
off work or school per year
On average, patients taking HyQvia missed 3.31 days of work or school due to an infection.
POTENTIAL REACTIONS
There are general (systemic) side effects, which happen throughout the body and not just in one part; and there are local side effects, which occur at the infusion site.
What does “systemic” mean?
Good question. Systemic is when a side effect happens throughout the body, not just in one part. Examples of systemic side effects are a headache or feeling more tired than usual.
Systemic side effects compared to IVIG
52%
52% lower rate of systemic side effects with HyQvia in clinical trials
The rate of general side effects per HyQvia infusion was 0.20, or 222 out of 1,129, versus 0.42, or 154 out of 365 per IVIG infusion.
Most common systemic side effects*
Headache
Headaches have been reported during or after the infusion with HyQvia.
IVIG (10%)
(365 infusions)
12%
IVIG
HyQvia
(1,129 infusions)
4%
HyQvia
Fatigue
People have reported feeling more tired than usual after infusing with HyQvia and may need to rest.
IVIG (10%)
(365 infusions)
3%
IVIG
HyQvia
(1,129 infusions)
1%
HyQvia
Nausea
Some people have reported feeling stomach discomfort or the sensation of wanting to vomit during or after the infusion.
IVIG (10%)
(365 infusions)
3%
IVIG
HyQvia
(1,129 infusions)
1%
HyQvia
Fever
People have reported experiencing a fever, or a temporary increase in body temperature, during or after the infusion.
IVIG (10%)
(365 infusions)
2%
IVIG
HyQvia
(1,129 infusions)
1%
HyQvia
Vomiting
Some people have vomited (thrown up) during or after the infusion.
IVIG (10%)
(365 infusions)
2%
IVIG
HyQvia
(1,129 infusions)
1%
HyQvia
Antibody formation
Some people developed antibodies against Hy, but the antibodies were not capable of neutralizing Hy.
*Excluding infections.
Please talk to your doctor about any side effects that you may experience from your infusion
Now, let’s switch to local, or infusion site, side effects.
These are reactions like redness, pain, itching, or swelling, to name a few.
~99%
mild to moderate
In the clinical study, ~99% of side effects at the infusion site, or local side effects, were considered mild to moderate.
These side effects generally go away in a few hours, and—great news—they are less likely to happen after the first few infusions.
Since HyQvia is given subcutaneously, these can be more common.
70.5%
were mild (n=165)
Mild side effects cause temporary discomfort that goes away on its own or with little medical intervention.
28%
were moderate (n=66)
Moderate side effects cause a slight decline in function that goes away on its own, or with little medical intervention, and has no further consequences.
1.3% were severe (n=3)
Severe side effects result in impairment of function and can lead to temporary inability to resume a normal lifestyle, as they require prolonged medical intervention and/or result in further consequences.†
†Three local severe reactions occurred during the clinical study: local infusion site pain, infusion site swelling, and infusion site swelling that extended from the abdominal infusion site to the genitalia.
Most common local side effects reported in more than 1% of infusions
(from a total of 1,129 studied HyQvia infusions)
Infusion-site reaction | Percentage (per infusion) and number of local side effects |
Discomfort/pain | 11% (122) |
Swelling | 3% (35) |
Redness | 3% (32) |
Itching | 2% (22) |
Local side effects may occur at the site of infusion and generally go away in a few hours.
These side effects are less likely to occur after the first few infusions.
More things to be aware of:
HyQvia can cause blood clots. Call your doctor if you have pain, swelling, warmth, redness, or a lump in your legs or arms, other than at the infusion site(s), unexplained shortness of breath, chest pain or discomfort that worsens on deep breathing, unexplained rapid pulse, or numbness or weakness on one side of the body.
Tell your doctor if you are pregnant, trying to become pregnant, or are breastfeeding. Also let your doctor know if you have or had any kidney, liver, or heart problems because HyQvia can make these problems worse.
Do not take HyQvia if you are allergic to IgG, hyaluronidase, other blood products, or any ingredient in HyQvia.
HyQvia can make vaccines (like measles/mumps/rubella or chickenpox vaccines) not work as well for you. Before you get any vaccines, tell your HCP that you take HyQvia.
Do not infuse HyQvia into or around an infected or red swollen area because it can cause infection to spread.
HyQvia can cause serious side effects. If any of the following problems occur after starting HyQvia, stop the infusion immediately and contact your doctor or call 911: