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En randomiserad kontrollerad studie av inandning av penehyclidin för att förebygga perioperativa respiratoriska biverkningar hos barn i riskzonen (PEPSI)

29 september 2026 uppdaterad av: Xiaoliang Gan, Sun Yat-sen University

Inandning av penehyclidin för att förhindra perioperativa andningsbiverkningar hos barn i riskzonen som genomgår mindre elektiv kirurgi

This randomized controlled study is to evaluate the effectiveness of inhaling penehyclidine hydrochloride in reducing perioperative respiratory adverse events in children at risk undergoing minor elective surgery.

Studieöversikt

Detaljerad beskrivning

Children with high risk factors of perioperative respiratory adverse events (PRAEs) remains a challenge for general anesthesia, inhalation of penehyclidine hydrochloride (PHC) has been showed to reduce postoperative pulmonary complications and enhance the recovery in high-risk surgical patients. Thus, prophylactic PHC inhalation might show promising benefits against PRAEs in pediatric anesthesia. This clinical study is designed to test the hypothesis that pediatric patients who exist at least 1 risk factor of PRAEs prophylactically to inhale PHC have a lower prevalence of PRAEs.

Studietyp

Interventionell

Inskrivning (Faktisk)

204

Fas

  • Fas 4

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

    • Guangdong
      • Guangzhou, Guangdong, Kina, 510060
        • Zhongshan Ophthalmic Center, Sun Yat-sen University
      • Shenzhen, Guangdong, Kina, 518040
        • Shenzhen Eye Hospital

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

3 år till 7 år (Barn)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Beskrivning

Inclusion Criteria:

  1. Pediatric patients aged 3 to 7 years.
  2. Scheduled to undergo ophthalmic surgery.
  3. Judged to be at risk of PRAEs (with at least one parentally reported risk factor for the PRAEs, including history of a recent cold, wheezing during exercise, wheezing more than three times in the past 12 months, nocturnal dry cough, eczema, or a family history of asthma, rhinitis, eczema, or exposure to passive smoke).

Exclusion Criteria:

  1. American Society of Anesthesiologists (ASA) physical classification ≥ IV.
  2. Known cardiopulmonary diseases (eg. uncorrected congenital heart disease, primary or secondary pulmonary hypertension, tumors, or structural lung diseases).
  3. Severe renal dysfunction (requirement of renal replacement therapy) or severe hepatic dysfunction (Child-Pugh grade C);
  4. Neurological disorders.
  5. Neuromuscular diseases.
  6. Contraindication for PHC.
  7. Inhalation of β2-receptor activator, M-receptor blockers and/or glucocorticoids within 1 month before surgery.
  8. Allergy to anticholinergic drugs.
  9. Use of endotracheal tube (ETT) for ventilation.
  10. Known difficult airway.
  11. Severe upper respiratory tract infections (URTIs) and the anesthesiologist recommended delaying surgery.
  12. Participation in other clinical trial during the last month or within the six half-life periods of the study drug used in the last trial.
  13. Parents refusing to allow their children to participate.
  14. Obesity, with a body mass index (BMI) over 95th percentile according to the WHO guideline.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Förebyggande
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Fyrdubbla

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: The penehyclidine hydrochloride group

Inhaling penehyclidine hydrochloride (a dose of 0.05 mg/kg, diluted and mixed with normal saline to a total volume of 5 ml) for nebulization therapy within 30 min prior to surgery.

The penehyclidine hydrochloride will be diluted to a total volume of 5 mL with normal saline, added to the nebulizer cup for inhalation. Patients will be asked to inhale the entire volume of nebulized drugs within 30 min prior to surgery. The trial drugs will be administered using a jet nebulizer with compressed air flow. Each child will be intructed to begin the nebulization by using a face mask that covers the nose and mouth while the child is seated upright. Children will be encouraged to take deep and slow breaths, inhaling through the mouth and exhaling through the nose, to ensure the drugs effectively reaches the airway.

Placebo-jämförare: The normal saline group

Inhaling normal saline in a total volume of 5 ml for nebulization therapy within 30 min prior to surgery.

The normal saline with a total volume of 5 mL will be added to the nebulizer cup for inhalation. Patients will be asked to inhale the entire volume of nebulized drugs within 30 min prior to surgery. The trial drugs will be administered using a jet nebulizer with compressed air flow. Each child will be intructed to begin the nebulization by using a face mask that covers the nose and mouth while the child is seated upright. Children will be encouraged to take deep and slow breaths, inhaling through the mouth and exhaling through the nose, to ensure the drugs effectively reaches the airway.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
The incidence of PRAEs
Tidsram: From beginning of anesthesia induction until the completion of postoperative recovery in PACU (including the phases of anesthesia induction, anesthesia maintenance, postoperative emergency and postoperative recovery), assessed up to 24 hours.

PRAEs are subdivided into two types: major (bronchospasm and laryngospasm) and minor (severe coughing, breath holding, desaturation, upper airway obstruction, and stridor) events. The primary outcome is the incidence of PRAEs. Patients will be considered positive for respiratory adverse events if at least 1 of the above adverse events occurs.

From beginning of anesthesia induction until the completion of postoperative recovery in PACU (including the phases of anesthesia induction, anesthesia maintenance, postoperative emergency and postoperative recovery), assessed up to 24 hours.

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
The severity of major respiratory adverse events if occurs
Tidsram: From beginning of anesthesia induction until the completion of postoperative recovery in PACU (including the phases of anesthesia induction, anesthesia maintenance, postoperative emergency and postoperative recovery), assessed up to 24 hours.

Major respiratory adverse events include laryngospasm and bronchospasm. Laryngospasm will be scored according to its severity as follows: 1=none, 2=partial-reposition airway, 3=partial-continuous positive airway pressure (CPAP), 4=complete-muscle relaxant. Bronchospasm will be scored according to its severity as follows: 1=none, 2= expiration only, 3= expiration and inspiration, 4=difficult to ventilate, require treatment.

From beginning of anesthesia induction until the completion of postoperative recovery in PACU (including the phases of anesthesia induction, anesthesia maintenance, postoperative emergency and postoperative recovery), assessed up to 24 hours.
Ease of LMA insertion
Tidsram: From the beginning of LMA insertion until the completion of successful LMA insertion, assessed up to 24 hours

This outcome includes time to successful insertion, the number of insertion attempts, and difficulty at insertion.

From the beginning of LMA insertion until the completion of successful LMA insertion, assessed up to 24 hours
The episode and degree of salivation during removal of LMA
Tidsram: At the time of LMA removal, assessed up to 24 hours

Degree of salivation is evaluated as follows: 1=none; 2=minimal, no suction; 3=moderate, suction 1×; 4=copious, suction>1×.

At the time of LMA removal, assessed up to 24 hours
The airway hyperreactivity score
Tidsram: From the time of LMA removal until regaining consciousness from anesthesia, assessed up to 24 hours

This score is used to assessed severity of PRAEs, accounting for the intensity of coughing, breath holding, and oxygen desaturation on a scale ranging from 0 (none) to 4 (severe). The maximum score is 12, and a score of ≤3 is categorized as mild, 4 to 8 as moderate, and ≥9 as severe.

From the time of LMA removal until regaining consciousness from anesthesia, assessed up to 24 hours
The anesthesia-related time
Tidsram: During the phases of anesthesia emergence and recovery, assessed up to 24 hours

The anesthesia-related time includes time to LMA removal, and PACU stay time.

During the phases of anesthesia emergence and recovery, assessed up to 24 hours
Emergence agitation
Tidsram: From the time of LMA removal until regaining consciousness from anesthesia, assessed up to 24 hours

Emergence agitation will be evaluated within stay in PACU using the Aono's four point scale (1: calm; 2: not calm but easily consolable; 3: not easily calmed restless or moderately agitated; 4: combative, disoriented, or excited). The scale scoring of 1 and 2 are considered as the absence of EA, and scale of 3 and 4 are considered as the presence of EA.

From the time of LMA removal until regaining consciousness from anesthesia, assessed up to 24 hours
Postoperative pain score
Tidsram: From the time of arrival in PACU until the time of discharge from PACU, assessed up to 24 hours

Postoperative pain score will be assessed within stay in the PACU using the Wong-Baker Pain Scale. A score higher than 4 is defined as moderate-to-severe pain which need to be timely managed.

From the time of arrival in PACU until the time of discharge from PACU, assessed up to 24 hours
The change of systolic blood pressure (SBP)
Tidsram: At baseline; 5 minutes after inhaling PHC; the completion of inhaling PHC; LMA insertion; upon arrival in PACU; pre-LMA mask removal; post-LMA mask removal; ready to discharge from PACU, assessed up to 24 hours

The changes of SBP will be recorded.

At baseline; 5 minutes after inhaling PHC; the completion of inhaling PHC; LMA insertion; upon arrival in PACU; pre-LMA mask removal; post-LMA mask removal; ready to discharge from PACU, assessed up to 24 hours
The change of heart rate (HR)
Tidsram: At baseline; 5 minutes after inhaling PHC; the completion of inhaling PHC; LMA insertion; upon arrival in PACU; pre-LMA mask removal; post-LMA mask removal; ready to discharge from PACU, assessed up to 24 hours

The changes of HR will be recorded.

At baseline; 5 minutes after inhaling PHC; the completion of inhaling PHC; LMA insertion; upon arrival in PACU; pre-LMA mask removal; post-LMA mask removal; ready to discharge from PACU, assessed up to 24 hours
The change of SpO2
Tidsram: At baseline; 5 minutes after inhaling PHC; the completion of inhaling PHC; LMA insertion; upon arrival in PACU; pre-LMA mask removal; post-LMA mask removal; ready to discharge from PACU, assessed up to 24 hours

The change of SpO2 will be recorded.

At baseline; 5 minutes after inhaling PHC; the completion of inhaling PHC; LMA insertion; upon arrival in PACU; pre-LMA mask removal; post-LMA mask removal; ready to discharge from PACU, assessed up to 24 hours
Other adverse events
Tidsram: From beginning of inhalation until the 24 postoperative hours.

Other adverse events potentially related to inhale the study drug from beginning of inhalation until the 24 postoperative hours, including postoperative nausea and vomitting (PONV), dry month, palpation, dizziness, fever, cough, urine retention, and flushing.

From beginning of inhalation until the 24 postoperative hours.
The incidence of respiratory infections within 7 days after surgery
Tidsram: Within 7 days after surgery.

Children who develop respiratory infections within 7 days after surgery will be recorded during postoperative follow-up.

Within 7 days after surgery.

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Allmänna publikationer

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

12 november 2024

Primärt slutförande (Faktisk)

11 augusti 2026

Avslutad studie (Faktisk)

18 augusti 2026

Studieregistreringsdatum

Först inskickad

30 september 2024

Först inskickad som uppfyllde QC-kriterierna

2 oktober 2024

Första postat (Faktisk)

3 oktober 2024

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

2 oktober 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

29 september 2026

Senast verifierad

1 september 2026

Mer information

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