0917 Finasteride is Associated with a Higher Odds of Obstructive Sleep Apnea (OSA): Results from the US FDA Adverse Events Reporting System (FAERS)
Bibliographic record
Abstract
Finasteride is 5α-reductase inhibitor that is FDA approved for the treatment of benign prostatic hypertrophy and androgenetic alopecia in men. Free testosterone is converted by 5α-reductase to the more potent androgen 5α-dihydrotestosterone. Finasteride, which crosses the blood-brain barrier, therefore lowers overall androgen activity. A decrease in androgen levels has been associated with OSA and lower sleep efficiency in some studies. Recently the ‘post-finasteride syndrome’ (PFS) consisting of sexual difficulties, several neurologic/psychologic symptoms and insomnia has been recognized. To our knowledge there are no reports of OSA with finasteride. The FAERS database (January 1, 2004-June 30, 2017, total count of individual safety reports or ISR =9,553,117) was used to examine ISR of OSA and insomnia where finasteride was documented as the primary suspect. Medical Dictionary for Regulatory Activities (MedDRA) preferred terms (PTs) were used to select ISRs designating OSA (PT [MedDRA code] Sleep apnoea syndrome [10040979]) and Insomnia (PT [MedDRA code] included Insomnia [10022437], Initial insomnia [10022035], Middle insomnia [10027590], and Terminal Insomnia [10068932]) as the adverse event (AE). Reporting odds ratios (ROR) with 95% confidence intervals (CI) were calculated to assess baseline risk of OSA and insomnia when finasteride was used for any indication versus the risk of OSA and insomnia with all other medications in FAERS used for any indication. All ISRs where data on sex was available (89/145) involved males; age was coded in only 3/145 ISRs. The odds of OSA with finasteride for any indication versus OSA with all other medication in FAERS used for any indication revealed ROR=5.73(95% CI 4.86–6.75, z=20.866, p<0.0001); Count of ISR: 145 OSA/61,490 all other AE with finasteride versus 11,390 OSA/27,680,268 all other AE with all other medications in FAERS. Similarly for Insomnia ROR=1.72 (95% CI 1.59–1.87, z=13.013, p<0.0001). Finasteride was associated with a significantly higher odds of OSA, a finding that has not been previously reported. The higher odds of insomnia with finasteride is consistent with the previously reported PFS. None.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.013 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.002 |
| Bibliometrics | 0.002 | 0.004 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.010 | 0.002 |
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 source (direct Gemma or distilled Codex), 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".