NCT03298347.

Study name	Caffeine for preterm infants with apnea of prematurity (AOP)
Methods	Study type: interventional Estimated enrollment: 100 participants Allocation: randomized Intervention model: parallel assignment Intervention model description: 100 preterm infants admitted to Daping Hospital and the Research Institute of Surgery of the Third Military Medical University (Chongqing, China), divided in two groups. Masking: quadruple (participant, care provider, investigator, outcomes assessor) Primary purpose: treatment
Participants	Preterm infants with gestational age less than 32 weeks and AOP
Interventions	80 versus 20 mg/kg of caffeine (not clear if single or multiple administration)
Outcomes	Rate of AOP within 100 days
Starting date	1 October 2017
Contact information	Ma Juan 416767068@qq.com Shi Yuan petshi530@vip.163.com
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