NHFOV as Primary Support in Very Preterm Infants With RDS

NCT ID: NCT05141435

Last Updated: 2025-07-24

Study Results

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

360 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-08-01

Study Completion Date

2024-08-05

Brief Summary

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This will be a prospective, multi-center, two-arms,parallel, randomized, controlled trial with a superiority design,conducted in China. The investigators conduct this multi-centre, randomized, controlled trial to test the hypothesis that NHFOV is more effective than nCPAP in the treatment of respiratory distress syndrome (RDS) in infants with a gestational age of less than 28 weeks when used as a primary noninvasive ventilation (NIV) mode.

Detailed Description

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Preterm infants are eligible to the study if they they match the following inclusion criteria: (1) Gestational age between 240/7 and 286/7 weeks; (2) diagnosis of RDS. The diagnosis of RDS will be based on clinical manifestations (tachypnea, nasal flaring and or grunting) and a fraction of inspired oxygen (FiO2) greater than 0.25 for target saturation of peripheral oxygen (SpO2) 89% to 94%;; (3) Age less than 2 hours; (4)Informed parental consent has been obtained.

Neonates will be randomized and assigned either to nCPAP or NHFOV arms with a 1:1ratio, when patients fulfill all inclusion criteria. Randomization cannot be done earlier. Simple randomization will be done according to a computer-generated random number table and will be posted in a specific secured website 24/7 available. Twins will be allocated in the same treatment group. Infants randomized to one arm cannot crossover to the other or vice- versa during the study. For all the groups, if the fraction of inspired oxygen (FiO2) requirement is persistently higher than 0.30 per target SpO2 89-94% after starting the respiratory support, newborns receive Surfactant by "LISA" technique, administration of surfactant (Curosurf,Chiesi Pharmaceutics, Parma, Italy) 200 mg/kg.

After the administration of surfactant, if FiO2 requirement is persistently \>0.4 to keep SpO2 89-94% or severe apnea episodes are present (defined as recurrent apnea with \>3 episodes/h associated with heart rate \<100/min or a single episode of apnea requiring bag and mask ventilation within a 24-hour period ) or at the blood gas (arterial or free-flowing capillary blood) PaCO2\>60 mmHg and potential of hydrogen (pH)\<7.20 obtained at least 1 hour after commencement of the assigned treatment, newborns are intubated and mechanically ventilated.

For all the newborns enrolled in the study, arterial or free-flowing capillary blood gas is checked every 6-12 hours, a cerebral and cardiac ultrasound screening is performed within 24 hrs. Further controls follow the routine of the ward.

Conditions

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to Test the Hypothesis That NHFOV is More Effective Than nCPAP in the Treatment of Respiratory Distress Syndrome (RDS) in Verypreterm Neonates

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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NCPAP

Group Type ACTIVE_COMPARATOR

infants receive primary non-invasive respiratory support by mean of nCPAP

Intervention Type PROCEDURE

neonates assigned to the nCPAP group will be started on a pressure of 6 cmH2O( adjust range:6-10 cmH2O) , with FiO2 (0.21-0.40)adjusted to target SpO2 from 89% to 94%. CPAP will be provided by either variable flow or continuous flow devices, as there is no clear evidence that one type of CPAP generator would be better than any other by pure CPAP system.

infants receive primary non-invasive respiratory support by mean of NHFOV

Intervention Type PROCEDURE

neonates assigned to NHFOV will be started with the following boundaries: a) Paw of 6 cmH2O (the range 6-10 cmH2O); b) frequency of 10 Hz (the range 8-12 Hz). c) Inspiratory time 50% (1:1). d) amplitude 15 cmH2O(the range 15-25 cmH2O) NHFOV will only be provided with piston/ membrane oscillators able to provide an active expiratory phase (that is, Acutronic FABIAN-III, SLE 5000, Loweinstein Med LEONI+, Sensormedics 3100A).

NHFOV

Group Type ACTIVE_COMPARATOR

infants receive primary non-invasive respiratory support by mean of nCPAP

Intervention Type PROCEDURE

neonates assigned to the nCPAP group will be started on a pressure of 6 cmH2O( adjust range:6-10 cmH2O) , with FiO2 (0.21-0.40)adjusted to target SpO2 from 89% to 94%. CPAP will be provided by either variable flow or continuous flow devices, as there is no clear evidence that one type of CPAP generator would be better than any other by pure CPAP system.

infants receive primary non-invasive respiratory support by mean of NHFOV

Intervention Type PROCEDURE

neonates assigned to NHFOV will be started with the following boundaries: a) Paw of 6 cmH2O (the range 6-10 cmH2O); b) frequency of 10 Hz (the range 8-12 Hz). c) Inspiratory time 50% (1:1). d) amplitude 15 cmH2O(the range 15-25 cmH2O) NHFOV will only be provided with piston/ membrane oscillators able to provide an active expiratory phase (that is, Acutronic FABIAN-III, SLE 5000, Loweinstein Med LEONI+, Sensormedics 3100A).

Interventions

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infants receive primary non-invasive respiratory support by mean of nCPAP

neonates assigned to the nCPAP group will be started on a pressure of 6 cmH2O( adjust range:6-10 cmH2O) , with FiO2 (0.21-0.40)adjusted to target SpO2 from 89% to 94%. CPAP will be provided by either variable flow or continuous flow devices, as there is no clear evidence that one type of CPAP generator would be better than any other by pure CPAP system.

Intervention Type PROCEDURE

infants receive primary non-invasive respiratory support by mean of NHFOV

neonates assigned to NHFOV will be started with the following boundaries: a) Paw of 6 cmH2O (the range 6-10 cmH2O); b) frequency of 10 Hz (the range 8-12 Hz). c) Inspiratory time 50% (1:1). d) amplitude 15 cmH2O(the range 15-25 cmH2O) NHFOV will only be provided with piston/ membrane oscillators able to provide an active expiratory phase (that is, Acutronic FABIAN-III, SLE 5000, Loweinstein Med LEONI+, Sensormedics 3100A).

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

(1) Gestational age between 240/7 and 286/7 weeks; (2) diagnosis of RDS. The diagnosis of RDS will be based on clinical manifestations (tachypnea, nasal flaring and or grunting) and a fraction of inspired oxygen (FiO2) greater than 0.25 for target saturation of peripheral oxygen (SpO2) 89% to 94%;(3) Age less than 2 hours

Exclusion Criteria

* Intubated forany reasons at birth

* Major congenital malformations or known complex congenital heart disease
* No parental consent
Minimum Eligible Age

0 Hours

Maximum Eligible Age

2 Hours

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Jiangxi Maternal and Child Health Hospital

OTHER

Sponsor Role collaborator

Children's Hospital of Chongqing Medical University

OTHER

Sponsor Role collaborator

Guiyang Maternity and Child Health Care Hospital

OTHER

Sponsor Role collaborator

The Second Hospital of Shandong University

OTHER

Sponsor Role collaborator

Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region

OTHER

Sponsor Role collaborator

Hunan Provincial Maternal and Child Health Care Hospital

OTHER

Sponsor Role collaborator

Zhangzhou Affiliated Hospital of Fujian Medical University

OTHER

Sponsor Role collaborator

Women and Children's Health Hospital of Yulin

OTHER

Sponsor Role collaborator

Chongqing Three Gorges Central Hospital

OTHER

Sponsor Role collaborator

Gansu Provincial Maternal and Child Health Care Hospital

OTHER

Sponsor Role collaborator

The First People's Hospital of Yunnan

OTHER

Sponsor Role collaborator

Chengdu Women's and Children's Central Hospital

OTHER

Sponsor Role collaborator

Maternal and Children's Healthcare Hospital of Taian

OTHER

Sponsor Role collaborator

People's Hospital of Xinjiang Uygur Autonomous Region

OTHER

Sponsor Role collaborator

Quanzhou Children's Hospital

OTHER

Sponsor Role collaborator

Chongqing West Hospital

OTHER

Sponsor Role collaborator

Chongqing Medical Center for Women and Children

OTHER

Sponsor Role collaborator

Xiamen Maternity & Child Care Hospital

OTHER

Sponsor Role collaborator

Qujing Maternal and Child Health Hospital

OTHER

Sponsor Role collaborator

Liuzhou Maternity and Child Healthcare Hospital

OTHER

Sponsor Role collaborator

International Peace Maternity and Child Health Hospital

OTHER

Sponsor Role collaborator

Jiulongpo No.1 People's Hospital

OTHER

Sponsor Role lead

Responsible Party

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Xingwang Zhu

Doctor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Yuan Shi, PhD

Role: STUDY_CHAIR

Children's Hospital of Chongqing Medical University

Locations

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Hunan Provincial Maternal and Child Health Care Hospital

Changsha, Hunan, China

Site Status

The Second Hospital of Shandong University

Jinan, Shandong, China

Site Status

Qujing Maternity and cChild Healthcare Hospital

Qujing, Yunnan, China

Site Status

Countries

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China

References

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Li Y, Zhu X, Li LJ, Chen L, Yang Q, Xu L, Liang W, Lin X, Li C, Xue J, Liu L, Pan X, Ju R, Peng X, Tang W, Shi Y; NHFOV study group. Non-invasive high frequency oscillatory ventilation for primary respiratory support in extremely preterm infants: multicentre randomised controlled trial. BMJ. 2025 Oct 6;391:e085569. doi: 10.1136/bmj-2025-085569.

Reference Type DERIVED
PMID: 41052898 (View on PubMed)

Li Y, Zhu X, Shi Y; Noninvasive High-Frequency Oscillatory Ventilation Study Group. Non-invasive high-frequency oscillatory ventilation versus nasal continuous positive airway pressure in extremely preterm infants with respiratory distress syndrome: study protocol for a multicentre randomised controlled, superiority trial. BMJ Open. 2023 Mar 3;13(3):e068450. doi: 10.1136/bmjopen-2022-068450.

Reference Type DERIVED
PMID: 36868587 (View on PubMed)

Provided Documents

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Document Type: Study Protocol and Statistical Analysis Plan

View Document

Document Type: Informed Consent Form

View Document

Other Identifiers

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NHFOV prevent intubation

Identifier Type: -

Identifier Source: org_study_id

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