NCT05275725

Brief Summary

Neonatal encephalopathy (NE) is the third leading cause of under 5-year mortality and contributes substantially to long-term neurological morbidity worldwide. In low-income countries (LICs), families often lack the resources to care for affected children. For those with disabilities, stigma is high, and social and emotional impacts are substantial. Improving our understanding of NE in LICs is crucial if intervention strategies are developed. Providing access to an affordable and easy-to-administer treatment after birth may improve survival, early brain development and later outcome, maximizing developmental potential. The primary objective of this study is to investigate the feasibility, safety and tolerability of administering sildenafil as a neuroprotective/neurorestorative strategy to improve early brain development in a cohort of children with NE in Uganda.

Trial Health

55
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
18

participants targeted

Target at P25-P50 for phase_1

Timeline
Completed

Started Jul 2022

Typical duration for phase_1

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 8, 2022

Completed
1 month until next milestone

First Posted

Study publicly available on registry

March 11, 2022

Completed
4 months until next milestone

Study Start

First participant enrolled

July 1, 2022

Completed
2.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 31, 2025

Completed
Last Updated

December 31, 2024

Status Verified

December 1, 2024

Enrollment Period

2.6 years

First QC Date

February 8, 2022

Last Update Submit

December 27, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Maximum tolerable dose of sildenafil

    within 30 days of drug administration

Secondary Outcomes (2)

  • Incidence of adverse events (Safety and Tolerability)

    within 30 days of drug administration

  • Sildenafil concentrations

    within 30 days of drug administration

Study Arms (1)

Sildenafil

EXPERIMENTAL
Drug: Sildenafil

Interventions

Dose group 1st dose 2nd dose 3rd dose 4-14th doses Treatment Total dose/day frequency dose/day Group 1: #1-14=2 mg/kg q12h (4 mg/kg/day) Group 2: #1 = 2 mg/kg, #2-14 = 2.5 mg/kg q12h (5 mg/kg/day) Group 3: #1 = 2 mg/kg, #2 = 2.5 mg/kg, #3-14 = 3 mg/kg q12h (6 mg/kg/day) Group 4: #1 = 2.5 mg/kg, #2-14 = 3 mg/kg q12h (6 mg/kg/day) Group 5: #1-14 = 3 mg/kg q12h (6 mg/kg/day)

Sildenafil

Eligibility Criteria

Age0 Days - 18 Months
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Male and female neonates meeting the criteria for birth asphyxia
  • Gestational age ≥ 36 weeks and birth weight ≥ 1800 g;
  • Admitted to Kawempe Hospital or Nsambya Hospital within 48 hours of life;
  • Need for continued resuscitation after birth and/or 5-minute Apgar score ≤5;
  • Evidence of neonatal encephalopathy by an abnormal neurological exam (modified Sarnat score of 2-3 or abnormal aEEG).

You may not qualify if:

  • Absent heart rate at 10 minutes/imminent death
  • Neonates with major congenital malformations
  • Neonates with grade 3 AKI (serum creatinine rise ≥3x lowest previous creatinine or creatinine \> 2.5 mg/dL = 221 mcmol/L or receipt of dialysis)
  • Neonates with intraventricular and/or intraparenchymal hemorrhage on cranial ultrasound (cUS) performed on day 1-2 of life
  • Mother living permanently outside 20km radius of Kawempe Hospital or Nsambya Hospital
  • Neonates whose parents are unwilling or unable to give informed written consent to enter the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Kawempe National Referral Hospital

Kawempe, Uganda

Location

MeSH Terms

Conditions

Asphyxia Neonatorum

Interventions

Sildenafil Citrate

Condition Hierarchy (Ancestors)

Infant, Newborn, DiseasesCongenital, Hereditary, and Neonatal Diseases and Abnormalities

Intervention Hierarchy (Ancestors)

SulfonamidesAmidesOrganic ChemicalsSulfonesSulfur CompoundsPiperazinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsPurinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-Ring

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: Phase Ib open-label single-arm dose-finding clinical trial
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Associate Professor of Pediatrics

Study Record Dates

First Submitted

February 8, 2022

First Posted

March 11, 2022

Study Start

July 1, 2022

Primary Completion

January 31, 2025

Study Completion

January 31, 2025

Last Updated

December 31, 2024

Record last verified: 2024-12

Data Sharing

IPD Sharing
Will not share

No individual participant data sharing

Locations