Before starting PALYNZIQ, people participating in the study had an average Phe level of 20 mg/dL. In a sub-group of 118 people taking PALYNZIQ in the study:
*21% of participants (25/118) stopped taking PALYNZIQ before reaching a Phe level below or equal to 6 mg/dL. Of those, 10 participants stopped treatment due to side effects. A total of 3% of participants (4/118) did not reach a Phe level below or equal to 6 mg/dL before completing the study.
†24% of participants (28/118) stopped taking PALYNZIQ before they reached a Phe level below or equal to 2 mg/dL. Additionally, 11 participants did not reach a Phe level below or equal to 2 mg/dL before completing the study.
Reaching a Phe level below 0.5 mg/dL is called HypoPhe. If your Phe level decreases below 0.5 mg/dL while taking PALYNZIQ, your doctor may reduce your dose and/or modify your diet to increase it.
Hear firsthand from real adults with PKU about the process of lowering Phe levels.
Most people did NOT consume a Phe-restricted diet while taking PALYNZIQ.
A Phe-restricted diet is when people get more than 75% of their protein from medical food/formula.
A separate analysis of the 250 people taking PALYNZIQ during a clinical study found that*:
were not on a Phe-restricted diet before starting PALYNZIQ.
were not on a Phe-restricted diet at their last assessment at the end of the study.
*40% of patients (101/250) were taking no medical protein before starting. About 91% (92/101) of them still did not take any medical protein at their last assessment.
43% (108/250) were taking some form of medical protein before starting. About 48% (52/108) of them still did so at their last assessment.
16% (41/250) got more than 75% of their protein from medical food/formula before starting. About 29% (12/41) still did so at their last assessment.
What is the most important information I should know about PALYNZIQ?
PALYNZIQ can cause a severe allergic reaction (anaphylaxis) that may be life threatening and can happen any time during treatment with PALYNZIQ.
Severe allergic reactions are a serious but common side effect of PALYNZIQ.
Stop injecting PALYNZIQ and get emergency medical care right away if you have any of the following symptoms:
Keep the auto-injectable epinephrine with you at all times during treatment with PALYNZIQ. Read the Patient Information that comes with the auto-injectable epinephrine that your healthcare provider prescribes for you for more information.
If you have a severe allergic reaction, do not continue to take PALYNZIQ until you talk with your healthcare provider. Your healthcare provider will tell you if you can continue treatment with PALYNZIQ.
People taking PALYNZIQ have also experienced allergic reactions other than anaphylaxis. Talk to your healthcare provider if you experience any allergic reactions when taking PALYNZIQ.
PALYNZIQ REMS: PALYNZIQ is available only through a restricted program called the PALYNZIQ REMS (Risk Evaluation and Mitigation Strategy). Talk to your healthcare provider about the PALYNZIQ REMS and how to enroll.
What should I tell my healthcare provider BEFORE starting PALYNZIQ?
Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.
Before injecting PALYNZIQ, talk to your healthcare provider right away if you cannot or will not use auto-injectable epinephrine to treat a severe allergic reaction. If you are pregnant or plan to become pregnant while taking PALYNZIQ, talk to your healthcare provider to discuss the risks and benefits of taking PALYNZIQ during pregnancy to you and your unborn baby. If you are breastfeeding or plan to breastfeed, talk to your healthcare provider about the best way to feed your baby if you take PALYNZIQ.
Before injecting PALYNZIQ, read the Medication Guide and Instructions for Use that come with your PALYNZIQ injection.
What should I watch for AFTER starting PALYNZIQ?
PALYNZIQ may cause serious side effects, including:
The most common side effects of PALYNZIQ include injection site reactions (such as redness, itching, pain, bruising, rash, swelling, or tenderness), joint pain, headache, skin reactions that spread and last at least 14 days (such as itching, rash, or redness), nausea, stomach pain, vomiting, cough, mouth and throat pain, itching, diarrhea, stuffy nose, feeling very tired, dizziness, anxiety, and low levels of Phe in your blood.
These are not all of the possible side effects of PALYNZIQ. Speak with your healthcare provider right away about any side effects.
Blood Phe testing and diet
Missed dose
Pregnancy Surveillance Program
You may report side effects to BioMarin at 1-866-906-6100.
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch, or call 1-800-FDA-1088.
Please see full Prescribing Information, including an important warning for risk of anaphylaxis, and the Medication Guide.
US-PAL-00519 05/25
What is the most important information I should know about PALYNZIQ?
PALYNZIQ can cause a severe allergic reaction (anaphylaxis) that may be life threatening and can happen any time during treatment with PALYNZIQ.
What is PALYNZIQ?
PALYNZIQ® (Pal-lin-zeek) (pegvaliase-pqpz) is a prescription medication used to lower blood levels of phenylalanine (Phe) in adults with PKU (phenylketonuria) who have uncontrolled blood Phe levels above 600 micromol/L (10 mg/dL) on their current treatment. You should discuss the potential benefits and risks of PALYNZIQ with your healthcare provider.