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Apnea of prematurity is a developmental disorder affecting premature infants, likely secondary to an immaturity of respiratory control resulting in idiopathic pauses in breathing often associated with reduced heart rate and arterial blood oxygen levels. It may be exacerbated by concurrent neonatal diseases.
Features include very common findings: Apnea; and common findings: Cyanosis, Bradycardia, and Low blood oxygen levels (hypoxemia). 5 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Lungs and breathing | 2 | Apnea, Low blood oxygen levels (hypoxemia) |
1 FDA-approved treatment is available for apnea of prematurity, including CAFFEINE CITRATE (CAFFEINE CITRATE, approved 1999). An additional 2 compounds hold orphan drug designation.
Brand Name | Generic Name | Mechanism | Approved | Market Status |
|---|---|---|---|---|
Phenotype severity distribution: 1 very common feature, 3 common features.
Estimated prevalence: 1-9 in 100,000 (Uncommon).
15 clinical trials registered, 4 recruiting. Interventions under study include drug therapy, other interventions, and medical devices. Pipeline includes 2 PHASE4, 1 PHASE3, 1 PHASE2. Research is primarily sponsored by academic and government institutions.
NCT ID | Title | Phase | Sponsor | Status |
|---|---|---|---|---|
[NCT06401083](https://clinicaltrials.gov/study/NCT06401083) |
Data assembled from 6 of 12 sources · Last updated Sep 17, 2026, 9:52 PM UTC
European rare disease database
Genetic and Rare Diseases Info Center
1 |
Bradycardia |
Growth and development | 1 | Failure to thrive in infancy |
CAFFEINE CITRATE |
CAFFEINE CITRATE |
— |
1999 |
Available |
The following drugs have received orphan drug designation from the FDA for apnea of prematurity. Orphan designation reflects regulatory interest and does not indicate approval for treatment.
Brand Name | Generic Name | Sponsor | Designated | Exclusivity End | Designation Status |
|---|---|---|---|---|---|
hydrogen sulfate salt is a white or off white crystalline powder with a molecular weight of 352.42 Da [C11H24N6O5S], prepared in a 1:1 ratio of sulfuric acid (MW 98.06 DA) and ENA-001 (free base; MW 254.36 Da [C11H22N6O]. | hydrogen sulfate salt is a white or off white crystalline powder with a molecular weight of 352.42 Da [C11H24N6O5S], prepared in a 1:1 ratio of sulfuric acid (MW 98.06 DA) and ENA-001 (free base; MW 254.36 Da [C11H22N6O]. | Enalare Therapeutics Inc. | 2022 | — | Designated |
N-acetylcysteine | N-acetylcysteine | Galleon Pharmaceuticals | 2010 | — | Withdrawn |
Gene therapy approaches for apnea of prematurity have been reported in the published literature.
15 trials found
The Effect of an Additional Pre-extubational Loading Dose of Caffeine-citrate |
PHASE4 |
Semmelweis University |
RECRUITING |
[NCT04430790](https://clinicaltrials.gov/study/NCT04430790) | Doxapram Therapy in Preterm Infants (DOXA Trial) | PHASE3 | Erasmus Medical Center | RECRUITING |
[NCT06292299](https://clinicaltrials.gov/study/NCT06292299) | The PARS Study: Paediatric Advanced Respiratory Service Study - An Observational Diagnostic Feasibility Study | — | NHS Greater Clyde and Glasgow | RECRUITING |
[NCT07570121](https://clinicaltrials.gov/study/NCT07570121) | Pharmacokinetics and Placental Transfer of Caffeine | PHASE1 | Indiana University | RECRUITING |
64 publications have been identified in PubMed for apnea of prematurity. Research spans Clinical Trial Publication (27%), Epidemiology / Natural History (25%), and Review / Meta-Analysis (21%).
Research Type | Count | % of Total |
|---|---|---|
Clinical study results | 17 | 27% |
Disease patterns and progression | 16 | 25% |
Research summaries | 13 | 21% |
Laboratory research | 9 | 14% |
Patient case studies | 4 | 6% |
Other research | 2 | 3% |
New treatment approaches | 2 | 3% |
Fleishaker S (2026). [PMID: 41731043](https://pubmed.ncbi.nlm.nih.gov/41731043/). *J Perinatol*. [Clinical Trial Publication]
Chen S (2026). [PMID: 41998743](https://pubmed.ncbi.nlm.nih.gov/41998743/). *Int J Retina Vitreous*. [Epidemiology / Natural History]
Vardar G (2026). [PMID: 41597093](https://pubmed.ncbi.nlm.nih.gov/41597093/). *Children (Basel)*. [Clinical Trial Publication]
Yu M (2026). [PMID: 42260661](https://pubmed.ncbi.nlm.nih.gov/42260661/). *Syst Rev*. [Review / Meta-Analysis]
Neamțu AV (2026). [PMID: 42210930](https://pubmed.ncbi.nlm.nih.gov/42210930/). *Front Med (Lausanne)*. [Clinical Trial Publication]
Travers CP (2026). [PMID: 41615858](https://pubmed.ncbi.nlm.nih.gov/41615858/). *Neonatology*. [Clinical Trial Publication]
Brossier DW (2026). [PMID: 41653310](https://pubmed.ncbi.nlm.nih.gov/41653310/). *Eur J Pediatr*. [Review / Meta-Analysis]
Rodriguez-Duboc A (2026). [PMID: 42047887](https://pubmed.ncbi.nlm.nih.gov/42047887/). *Cerebellum*. [Basic Science / Preclinical]
Isaiah Eregu Egiru E (2026). [PMID: 41993601](https://pubmed.ncbi.nlm.nih.gov/41993601/). *Sage Open Pediatr*. [Epidemiology / Natural History]
Chandorkar N (2026). [PMID: 42187335](https://pubmed.ncbi.nlm.nih.gov/42187335/). *Pediatr Pulmonol*. [Clinical Trial Publication]