Propofol versus placebo (with rescue with ketamine) before less invasive surfactant administration: study protocol for a multicenter, double-blind, placebo controlled trial (PROLISA)

Marie Chevallier, Xavier Durrmeyer, Anne Ego, Thierry Debillon, PROLISA Study Group, Alain Beuchee, Laura Bourgoin, Aurélie Desenfants, Amélie Durandy, Cyril Flamant, Géraldine Gascoin, Ghida Ghostine, Johanna Parra, Laure Ponthier, Jean-Michel Roué, Marie Chevallier, Xavier Durrmeyer, Anne Ego, Thierry Debillon, PROLISA Study Group, Alain Beuchee, Laura Bourgoin, Aurélie Desenfants, Amélie Durandy, Cyril Flamant, Géraldine Gascoin, Ghida Ghostine, Johanna Parra, Laure Ponthier, Jean-Michel Roué

Abstract

Background: One major limitation for less invasive surfactant administration (LISA) is the difficulty in providing sedation before this procedure and the competitive risk of respiratory depression versus avoidance of intubation for most sedative or analgesic drugs used in this context. The objective of this study is to compare the need for mechanical ventilation within 72 h of life following premedication with propofol, versus placebo (rescue with ketamine), for the LISA procedure in preterm neonates born before 32 weeks gestational age (wGA).

Methods: ProLISA is a phase III, non-inferiority, multicenter, double blind, randomized, placebo controlled trial designed according to the SPIRIT Statement. Neonates born before 32 wGA in 12 geographically dispersed Neonatal Intensive Care Units in France needing surfactant will be included from September 2019 to September 2022. A sample of 542 patients is needed. The neonate is randomized to the intervention (propofol) or control placebo group. Open label rescue treatment with ketamine is possible in both groups if FANS (Faceless Acute Neonatal pain Scale) is ≥6. To guide drug administration, FANS is scored before attempting laryngoscopy. Once an adequate score has been obtained, LISA is performed according to a standardized protocol. The primary outcome is the need for mechanical ventilation within 72 h of life. Secondary outcomes are tolerance of the procedure, pain evaluation, hemodynamic and neurologic parameters after the intervention, morbidities before discharge and neurodevelopmental assessment at 2 years of age.

Discussion: This paper describes the first multicenter, double-blind, randomized, placebo-controlled trial on this topic and will provide crucial information to support implementation of the LISA procedure.

Trial registration: ClinicalTrials.gov: NCT04016246. Registered 06 June 2019, N°EUDRACT: 2018-002876-41.

Keywords: Ketamine; Less invasive surfactant administration; Propofol; Randomized study; Sedation.

Conflict of interest statement

The authors declare that they have no competing interests.

Figures

Fig. 1
Fig. 1
Intervention scheme
Fig. 2
Fig. 2
Time frame

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