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Drug · FAERS side-effect profile with label screen

Alirocumab side effects: what 24,934 FDA adverse event reports show

Alirocumab · Praluent · 1,032 reaction terms · 67,106 drug–reaction co-reports · data 2026-09-14
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Drug class

PCSK9 Inhibitor

FDA label (Established Pharmacologic Class)

Brand names

Praluent

openFDA label

Who reports

24,934 reports · 27% serious · 506 with death outcome · 59% female

openFDA FAERS counts, all years, deduplication not applied

Used for

PRALUENT ® is indicated: To reduce the risk of major adverse cardiovascular (CV) events (coronary heart disease death, myocardial infarction, stroke, or unstable angina requiring hospitalization) in adults at increased risk for these events . As an adjunct to diet and exercise to reduce low- density lipoprotein cholesterol (LDL-C) in: adults with hypercholesterolemia.

FDA label, Indications and Usage

What it is

Alirocumab is a human monoclonal antibody (IgG1 isotype) that targets proprotein convertase subtilisin kexin type 9 (PCSK9). Alirocumab is a PCSK9 inhibitor produced by recombinant DNA technology in Chinese Hamster Ovary cell suspension culture.

FDA label, Description section

Boxed warning

None in the current label

How to read this page. FAERS is a spontaneous-reporting system: counts are not incidence rates and a signal is not proof of causation. Each reaction below is run through an automated screen — is the term in the FDA label (known), in the indications (the disease being treated), an administrative/coding term, or none of these (unlabeled)? That screen is mechanical text matching, not a causality assessment. The 30 hand-written Bradford Hill assessments are on the causality assessment page. Not medical advice.

Causality screen of the 40 strongest signals

Labeled adverse reaction 1Labeled (related wording) 6Likely indication confounding 4Reporting / coding artifact 7Lab value / disease marker 4Not in label — unassessed 18
What the badges mean

Strongest disproportionality signals

Flagged terms (PRR ≥ 2, χ² ≥ 4, n ≥ 10), ranked by PRR; infinite PRRs (no comparator reports) excluded. The EBGM column is a second, shrinkage-based estimate (MGPS) with its 5th percentile EB05 and the BCPNN IC025; a pair flagged by PRR alone is marked PRR-only and should be read as fragile. The strata column recomputes the PRR on serious reports only and flags pairs whose reports are unusually skewed by sex or come mostly from consumers rather than clinicians. 992 further terms are in the interactive explorer. Reaction links open the term's cross-drug page.

Show:
ReactionReportsPRR 95% CI · ROR · χ²/pEBGM EB05 · IC025Label screenSerious-only & strataTrial cross-check
Fractional exhaled nitric oxide increased1242,186.8
1,563.5–3,058.5ROR 2,197.7 · χ² 73,862 / p <1e-300
550.4 EB05 473.7 · IC025 +7.2
3/3 methods agree
Not in label — unassessedserious n=124 · ♀ 0% (drug 59%)not reported in cached trials
Skin pressure mark84696.2
521.1–930.3ROR 698.6 · χ² 31,317 / p <1e-300
348.7 EB05 290.5 · IC025 +6.5
3/3 methods agree
Not in label — unassessedserious n=4 · 83% consumernot reported in cached trials
Administration site indentation12221.0
116.9–417.8ROR 221.1 · χ² 1,905 / p <1e-300
137.1 EB05 83.6 · IC025 +3.5
3/3 methods agree
Not in label — unassessed–not reported in cached trials
Product delivery mechanism issue542105.5
96.6–115.3ROR 107.8 · χ² 49,689 / p <1e-300
93.4 EB05 87.0 · IC025 +6.3
3/3 methods agree
Reporting / coding artifactserious n=36 · 93% consumernot reported in cached trials
Myoglobin blood increased12775.9
63.3–91.0ROR 76.3 · χ² 8,531 / p <1e-300
68.9 EB05 59.4 · IC025 +5.5
3/3 methods agree
Lab value / disease markerserious n=127 · ♀ 0% (drug 59%)not reported in cached trials
Low density lipoprotein decreased11574.2
61.3–89.7ROR 74.5 · χ² 7,554 / p <1e-300
67.4 EB05 57.7 · IC025 +5.4
3/3 methods agree
Likely indication confounding
term in indications
serious n=18 · ♀ 29% (drug 59%)not reported in cached trials
Obstructive sleep apnoea syndrome11071.9
59.2–87.3ROR 72.2 · χ² 7,012 / p <1e-300
65.5 EB05 55.9 · IC025 +5.4
3/3 methods agree
Not in label — unassessedserious n=110 · ♀ 0% (drug 59%)not reported in cached trials
Application site injury1467.9
39.4–117.0ROR 67.9 · χ² 792 / p 2e-174
58.1 EB05 36.8 · IC025 +3.4
3/3 methods agree
Not in label — unassessed–not reported in cached trials
Low density lipoprotein abnormal3449.2
34.8–69.5ROR 49.2 · χ² 1,470 / p <1e-300
45.4 EB05 34.0 · IC025 +4.2
3/3 methods agree
Likely indication confounding
term in indications
serious n=12not reported in cached trials
Administration site bruise1744.6
27.4–72.6ROR 44.6 · χ² 647 / p 6e-143
40.6 EB05 26.8 · IC025 +3.5
3/3 methods agree
Not in label — unassessed–not reported in cached trials
Low density lipoprotein increased35640.8
36.7–45.3ROR 41.3 · χ² 13,124 / p <1e-300
38.8 EB05 35.5 · IC025 +5.0
3/3 methods agree
Likely indication confounding
term in indications
serious n=86not reported in cached trials
Blood cholesterol decreased8238.7
31.0–48.3ROR 38.8 · χ² 2,842 / p <1e-300
36.7 EB05 30.5 · IC025 +4.6
3/3 methods agree
Likely indication confounding
term in indications; also in warnings
serious n=22 · 77% consumernot reported in cached trials
Brain natriuretic peptide increased12736.1
30.2–43.1ROR 36.3 · χ² 4,122 / p <1e-300
34.5 EB05 29.7 · IC025 +4.6
3/3 methods agree
Lab value / disease markerserious n=125 · ♀ 0% (drug 59%)NCT01663402: 1/9,451 (0.0%) on Alirocumab (serious AE)
Plantar fasciitis13234.3
28.8–40.8ROR 34.5 · χ² 4,066 / p <1e-300
32.8 EB05 28.4 · IC025 +4.6
3/3 methods agree
Not in label — unassessedserious n=125 · ♀ 3% (drug 59%)not reported in cached trials
Morphoea1629.2
17.7–48.1ROR 29.2 · χ² 394 / p 5e-88
27.4 EB05 17.9 · IC025 +3.1
3/3 methods agree
Not in label — unassessedserious n=16not reported in cached trials
Wrong schedule3128.4
19.8–40.6ROR 28.4 · χ² 765 / p 1e-168
27.1 EB05 20.0 · IC025 +3.7
3/3 methods agree
Reporting / coding artifact77% consumernot reported in cached trials
Device operational issue13728.2
23.8–33.4ROR 28.3 · χ² 3,445 / p <1e-300
27.2 EB05 23.6 · IC025 +4.4
3/3 methods agree
Reporting / coding artifactserious n=5not reported in cached trials
Device use issue47223.5
21.5–25.8ROR 24.0 · χ² 9,896 / p <1e-300
22.9 EB05 21.2 · IC025 +4.3
3/3 methods agree
Reporting / coding artifactserious n=24 · 82% consumernot reported in cached trials
High density lipoprotein increased2320.1
13.3–30.3ROR 20.1 · χ² 388 / p 9e-87
19.3 EB05 13.4 · IC025 +3.1
3/3 methods agree
Lab value / disease markerserious n=8not reported in cached trials
Product dose omission1,36417.7
16.8–18.6ROR 18.6 · χ² 21,051 / p <1e-300
17.3 EB05 16.6 · IC025 +4.0
3/3 methods agree
Reporting / coding artifactserious PRR 13.2 · 88% consumernot reported in cached trials
Product preparation error41617.2
15.6–19.0ROR 17.5 · χ² 6,217 / p <1e-300
16.9 EB05 15.6 · IC025 +3.9
3/3 methods agree
Reporting / coding artifactserious n=32 · 90% consumernot reported in cached trials
Waist circumference increased1814.7
9.2–23.5ROR 14.7 · χ² 213 / p 2e-48
13.8 EB05 8.7 · IC025 +2.6
3/3 methods agree
Not in label — unassessedserious n=16not reported in cached trials
Injury associated with device33514.2
12.8–15.8ROR 14.4 · χ² 4,041 / p <1e-300
14.0 EB05 12.8 · IC025 +3.6
3/3 methods agree
Not in label — unassessedserious n=22not reported in cached trials
Sensation of foreign body12813.0
10.9–15.5ROR 13.1 · χ² 1,387 / p <1e-300
12.8 EB05 11.0 · IC025 +3.3
3/3 methods agree
Not in label — unassessedserious n=124 · ♀ 5% (drug 59%)not reported in cached trials
Product administered at inappropriate site26812.6
11.2–14.2ROR 12.7 · χ² 2,806 / p <1e-300
12.4 EB05 11.2 · IC025 +3.4
3/3 methods agree
Reporting / coding artifactserious n=18not reported in cached trials
High density lipoprotein decreased4611.7
8.8–15.7ROR 11.8 · χ² 435 / p 7e-97
11.2 EB05 8.6 · IC025 +2.9
3/3 methods agree
Lab value / disease markerserious n=15 · ♀ 37% (drug 59%)not reported in cached trials
Exostosis11210.4
8.7–12.6ROR 10.5 · χ² 935 / p 1e-205
10.2 EB05 8.6 · IC025 +3.0
3/3 methods agree
Not in label — unassessedserious PRR 25.2 · ♀ 0% (drug 59%)not reported in cached trials
Increased upper airway secretion6310.3
8.1–13.3ROR 10.4 · χ² 516 / p 1e-114
9.9 EB05 8.0 · IC025 +2.8
3/3 methods agree
Not in label — unassessedserious n=59 · ♀ 6% (drug 59%)not reported in cached trials
Secretion discharge14810.2
8.7–12.0ROR 10.2 · χ² 1,202 / p 9e-264
9.9 EB05 8.6 · IC025 +3.0
3/3 methods agree
Not in label — unassessedserious PRR 26.6 · ♀ 15% (drug 59%)not reported in cached trials
Obstructive airways disorder1289.7
8.2–11.6ROR 9.8 · χ² 985 / p 2e-216
9.5 EB05 8.2 · IC025 +2.9
3/3 methods agree
Not in label — unassessedserious PRR 21.0 · ♀ 0% (drug 59%)NCT01663402: 11/9,451 (0.1%) on Alirocumab; 7/9,443 (0.1%) control (serious AE)
Induration188.6
5.4–13.6ROR 8.6 · χ² 112 / p 2e-26
7.4 EB05 4.8 · IC025 +2.0
3/3 methods agree
Not in label — unassessedserious n=16not reported in cached trials
Myalgia (muscle pain)1,6838.4
8.0–8.8ROR 8.9 · χ² 10,944 / p <1e-300
8.3 EB05 8.0 · IC025 +3.0
3/3 methods agree
Labeled adverse reaction
exact term
serious PRR 7.8NCT01663402: 5/9,451 (0.1%) on Alirocumab; 5/9,443 (0.1%) control (serious AE)
Administration site pain118.2
4.5–14.9ROR 8.2 · χ² 62 / p 2e-15
6.5 EB05 3.7 · IC025 +1.6
3/3 methods agree
Not in label — unassessed–not reported in cached trials
Aortic valve replacement128.2
4.7–14.5ROR 8.2 · χ² 68 / p 7e-17
6.6 EB05 3.9 · IC025 +1.7
3/3 methods agree
Not in label — unassessedserious n=10not reported in cached trials

Trial evidence (ClinicalTrials.gov)

✓ Trial adverse-event data found on ClinicalTrials.gov

Largest completed trials with posted results that list Alirocumab as a study intervention. The right-hand column of the signal table shows whether each FAERS term was also recorded in these trials, with a real denominator (5 of 40 signal terms matched).

Caveats: trial populations, doses and follow-up differ from the reporting population; AE terms are sponsor-coded and matched here by wording; absence from a trial list means the term was not reported above the sponsor's frequency threshold, not that it cannot occur.

Most frequently reported reactions

By raw co-report count, regardless of disproportionality. Common terms here are often the illness itself or generic outcomes.

ReactionReportsPRR 95% CI · ROR · χ²/pEBGM EB05 · IC025Label screenSerious-only & strataTrial cross-check
Myalgia (muscle pain)1,6838.4
8.0–8.8ROR 8.9 · χ² 10,944 / p <1e-300
8.3 EB05 8.0 · IC025 +3.0
3/3 methods agree
Labeled adverse reaction
exact term
serious PRR 7.8NCT01663402: 5/9,451 (0.1%) on Alirocumab; 5/9,443 (0.1%) control (serious AE)
Product dose omission1,36417.7
16.8–18.6ROR 18.6 · χ² 21,051 / p <1e-300
17.3 EB05 16.6 · IC025 +4.0
3/3 methods agree
Reporting / coding artifactserious PRR 13.2 · 88% consumernot reported in cached trials
Muscle spasms1,1915.5
5.2–5.8ROR 5.7 · χ² 4,374 / p <1e-300
5.4 EB05 5.2 · IC025 +2.3
3/3 methods agree
Labeled adverse reaction
exact term
serious PRR 6.1 · 72% consumerNCT01663402: 1/9,451 (0.0%) on Alirocumab; 3/9,443 (0.0%) control (serious AE)
Arthralgia (joint pain)1,0742.2
2.1–2.3ROR 2.2 · χ² 699 / p 2e-154
2.2 EB05 2.1 · IC025 +1.0
3/3 methods agree
Not in label — unassessedserious PRR 2.3NCT01663402: 2/9,451 (0.0%) on Alirocumab; 3/9,443 (0.0%) control (serious AE)
Fatigue (tiredness)1,0331.1
1.1–1.2ROR 1.1 · χ² 13 / p 1e-4
1.1 EB05 1.1 · IC025 +0.1Not in label — unassessedserious PRR 1.3 · 74% consumerNCT01663402: 1/9,451 (0.0%) on Alirocumab; 4/9,443 (0.0%) control (serious AE)
Pain9651.3
1.2–1.4ROR 1.3 · χ² 76 / p 1e-18
1.3 EB05 1.3 · IC025 +0.3Labeled adverse reaction
exact term
serious PRR 1.2 · 77% consumerNCT01663402: 9/9,451 (0.1%) on Alirocumab; 12/9,443 (0.1%) control (serious AE)
Pain in extremity9422.7
2.5–2.9ROR 2.8 · χ² 1,009 / p 1e-221
2.7 EB05 2.5 · IC025 +1.3
3/3 methods agree
Not in label — unassessedserious PRR 2.6 · 73% consumerNCT01663402: 5/9,451 (0.1%) on Alirocumab; 6/9,443 (0.1%) control (serious AE)
Product dose omission issue9132.7
2.5–2.9ROR 2.8 · χ² 987 / p 5e-217
2.7 EB05 2.6 · IC025 +1.3
3/3 methods agree
Reporting / coding artifactserious PRR 2.5 · 79% consumernot reported in cached trials
Diarrhoea (diarrhea)8121.1
1.0–1.1ROR 1.1 · χ² 3 / p 0.043
1.1 EB05 1.0 · IC025 -0.0
PRR-only: not supported by EBGM or IC
Labeled adverse reaction
exact term
serious PRR 1.1NCT01663402: 4/9,451 (0.0%) on Alirocumab; 7/9,443 (0.1%) control (serious AE)
Headache8111.1
1.0–1.2ROR 1.1 · χ² 6 / p 0.007
1.1 EB05 1.0 · IC025 +0.0Not in label — unassessedserious PRR 1.4 · 72% consumerNCT01663402: 4/9,451 (0.0%) on Alirocumab; 7/9,443 (0.1%) control (serious AE)
Device issue7897.7
7.2–8.2ROR 7.9 · χ² 4,543 / p <1e-300
7.6 EB05 7.1 · IC025 +2.8
3/3 methods agree
Reporting / coding artifactserious PRR 5.0 · 84% consumernot reported in cached trials
Cough7252.2
2.0–2.3ROR 2.2 · χ² 468 / p 4e-104
2.2 EB05 2.0 · IC025 +1.0
3/3 methods agree
Not in label — unassessedserious PRR 3.2 · 71% consumerNCT01663402: 1/9,451 (0.0%) on Alirocumab; 1/9,443 (0.0%) control (serious AE)

Unlabeled candidate signals

These flagged terms were not found in the FDA label text and do not match an artifact pattern. They are the pairs that would merit a structured assessment (temporality, dose-response, biological plausibility, consistency across databases, trial or cohort evidence). The screen has not done that; string-matching misses label wording, and a strong PRR can still be stimulated reporting, co-medication, or the disease itself.

Want to assess one of these properly? The runbook describes the Bradford Hill / trial-evidence workflow used on the assessment page, and handoff_top1000_signals.csv lists the strongest unassessed pairs across all drugs.

Common questions

What are the most reported side effects of Alirocumab?

In FDA FAERS, the most frequently co-reported reaction terms for Alirocumab are myalgia, injection site pain, muscle spasms, arthralgia, fatigue, pain. These are report counts, not rates: FAERS has no denominator, reporting is voluntary and uneven, and a term can be reported because of the illness being treated rather than the drug.

Does Alirocumab have an FDA boxed warning?

No. The FDA label retrieved for Alirocumab has no boxed warning; see the label's Warnings and Precautions for the recognised risks.

Do FAERS signals prove that Alirocumab causes these side effects?

No. A disproportionality signal (PRR, ROR) means a reaction is reported more often with this drug than with others in the database. That can reflect a real effect, but also the disease being treated, stimulated reporting after news or litigation, co-medications, or how reports are coded. Causality needs temporality, dose-response, biological plausibility, consistency across data sources and, ideally, trial or cohort evidence. This page screens each term against the FDA label and ClinicalTrials.gov results; it does not establish causation.

Sources & methods

Page generated 2026-10-08. Label and PubChem text are retrieved automatically and may lag the current label; always check the current prescribing information. OpenPV is a beta research tool of the Open Source Medicine Foundation.