Treatment of Homozygous Familial Hypercholesterolemia With ANGPTL3 Inhibitor, Evinacumab
Bibliographic record
Abstract
Abstract Homozygous familial hypercholesterolemia (HoFH) is an ultra-rare, life-threatening, genetic condition characterized by markedly elevated levels of low-density lipoprotein cholesterol (LDL-C). Standard lipid-lowering therapies minimally reduce LDL-C in these patients, and lifelong serial apheresis is the mainstay of treatment. Evinacumab is a monoclonal antibody against angiopoietin-like protein 3 that lowers LDL-C levels via a novel LDL receptor–independent mechanism, and is US Food and Drug Administration approved for HoFH in the United States. We present a pediatric HoFH patient from Ontario who has been receiving evinacumab through special access from Health Canada. A 17-year-old boy was diagnosed with severe HoFH due to compound heterozygous LDLR pathogenic variants. Treatment has included a statin, ezetimibe, and LDL apheresis every 2 weeks, with minimal overall effect on LDL-C levels. He remains asymptomatic from a cardiovascular perspective. At age 16, evinacumab infused intravenously every 4 weeks was added to his treatment. After 12 months, his time-averaged LDL-C decreased by 53.4% from 8.75 mmol/L (338.4 mg/dL) to 4.08 mmol/L (157.8 mg/dL), despite reduced frequency of LDL apheresis from biweekly to monthly. He has experienced no adverse events. Overall, treatment has increased quality of life for him and his family. Evinacumab shows great promise for patients with HoFH, a difficult-to-treat and potentially life-threatening condition.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".