- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 NCT01600430
Vitamin D Supplementation for Extremely Preterm Infants
Early Vitamin D Supplementation for Prevention of Respiratory Morbidity in Extremely Preterm Infants: A Randomized Clinical Trial
연구 개요
상태
상세 설명
After informed consent obtained, infants will be randomized using computer-generated stratified randomization codes by the pharmacy. Clinicians, researcher, and primary caregivers will be masked. Subjects will be randomly assigned to one of the treatment arms or to a placebo concurrent control.
Early vitamin D supplementation/placebo will be initiated within the first 7 days after birth. Premature infants will be randomized to receive one of the 3 fixed doses of vitamin D: either placebo (zero dose), 200 IU/day, or 800 IU/day. The supplementation will be started within 72 hours of enteral feeds being initiated and will continue until postnatal day 28. After this period of supplementation, routine supplementation will be conducted in all groups.
Remnant cord blood samples will be analyzed for vitamin D levels (serum hydroxyvitamin D [25(OH)D]. Two circulating vitamin D concentrations (25(OH)D concentrations) will be measured on postnatal days 14 and 28. Urine samples will be collected weekly, to determine calcium excretion if high serum calcium concentrations are found.
Supplementation will be discontinued and infant will exit the study if surgical necrotizing enterocolitis/bowel perforation is diagnosed, if 25 (OH)D concentrations >60ng/mL (>150nmol/L; potentially toxic) are detected or, if infant NPO for greater than 24 hours. If infant made briefly NPO (<24h) for feeding intolerance, suspected sepsis, hypotension,hemodynamically significant PDA, or respiratory difficulties, enteral vitamin D will not be discontinued.
All infants will be followed to discharge for primary, secondary outcomes as well as adverse events.
연구 유형
등록 (실제)
단계
- 2 단계
- 3단계
연락처 및 위치
연구 장소
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Alabama
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Birmingham, Alabama, 미국, 35249
- University of Alabama at Birmingham
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참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
설명
Inclusion Criteria:
- Infants admitted to the Regional Newborn ICU of the University of Alabama with gestational age between 23-27 completed weeks
Exclusion Criteria:
- Major congenital/chromosomal anomalies
- Moribund infant with low likelihood of survival, in opinion of the clinical team
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 방지
- 할당: 무작위
- 중재 모델: 병렬 할당
- 마스킹: 네 배로
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
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활성 비교기: Oral Vitamin D--200 IU/day
Cholecalciferol 200 IU given orally once per day
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200 IU/day given orally once per day as one of 4 doses of 0.5ml each given every 6 hours.
Other 3 doses will be placebo (sterile water).
Duration of 28 postnatal days
다른 이름들:
800 IU/day given orally per day as 4 doses of 200 IU/0.5ml each every 6 hours.
Duration of 28 postnatal days
다른 이름들:
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위약 비교기: Placebo
Identical-appearing treatment that does not contain the test drug given orally four times per day.
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Sterile water 0.5ml given orally every 6 hours.
Duration of 28 postnatal days
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활성 비교기: Oral Vitamin D--800 IU/day
Cholecalciferol 800 IU given orally once per day
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200 IU/day given orally once per day as one of 4 doses of 0.5ml each given every 6 hours.
Other 3 doses will be placebo (sterile water).
Duration of 28 postnatal days
다른 이름들:
800 IU/day given orally per day as 4 doses of 200 IU/0.5ml each every 6 hours.
Duration of 28 postnatal days
다른 이름들:
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Total number of days alive and off respiratory support in the first 28 days
기간: 28 days
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The total number of days alive and off respiratory support.
Respiratory support is defined as need of supplemental oxygen and/or positive pressure ventilation to maintain normal target oxygen saturations (88-95%).
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28 days
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Serum vitamin D concentration
기간: Day after birth 28
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Serum vitamin D levels determined by enzyme immunoassay obtained from whole blood (remnant sample or obtained during clinical blood draw)
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Day after birth 28
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Number of sepsis episodes treated with antibiotics for at least 5 days
기간: Participants will be followed for the duration of hospital stay, an expected average of 4 months
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Number of episodes of culture proven or clinically suspected sepsis episodes treated with antibiotics for at least 5 days
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Participants will be followed for the duration of hospital stay, an expected average of 4 months
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Sepsis
기간: Participants will be followed for the duration of hospital stay, an expected average of 4 months
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Culture proven or culture negative clinically treated course consistent with sepsis
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Participants will be followed for the duration of hospital stay, an expected average of 4 months
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Need for supplemental oxygen at 36 weeks of corrected age (Physiologic definition)
기간: 36 weeks gestational age corrected
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A physiologic oxygen challenge test will be administered to infants from 36.0 weeks gestation to 37.0 weeks gestation to determine a need for supplemental oxygen to keep saturation levels between 88-95%.
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36 weeks gestational age corrected
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Duration of mechanical ventilation after randomization
기간: Participants will be followed for the duration of hospital stay, an expected average of 4 months
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Counted as number of days on which an infant is on mechanical ventilation for any part of a calendar day
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Participants will be followed for the duration of hospital stay, an expected average of 4 months
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Days alive and off mechanical ventilation in the first 28 days after birth
기간: 28 days
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Counted as days alive without mechanical ventilation for any part of a day
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28 days
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Number of re-intubation events
기간: Participants will be followed for the duration of hospital stay, an expected average of 4 months
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Counted as number of reintubations for purposes of respiratory support
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Participants will be followed for the duration of hospital stay, an expected average of 4 months
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Death
기간: Participants will be followed for the duration of hospital stay, an expected average of 4 months
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Cardiorespiratory failure
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Participants will be followed for the duration of hospital stay, an expected average of 4 months
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Surgical necrotizing enterocolitis or intestinal perforation
기간: Participants will be followed for the duration of hospital stay, an expected average of 4 months
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Radiographic documentation of pneumatosis or intestinal perforation or treatment course for clinical necrotizing enterocolitis per Bell's stage greater than 1.
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Participants will be followed for the duration of hospital stay, an expected average of 4 months
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25(OH)D concentrations >60ng/ml (150 nmol/L)
기간: 14 postnatal (+/- 2 days)
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Vitamin D measurement per blood obtained either centrally or by heel stick.
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14 postnatal (+/- 2 days)
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25(OH)D concentrations >60ng/ml (150 nmol/L)
기간: 28 days postnatal age (+/- 3 days)
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Vitamin D measurement per blood obtained either centrally or by heel stick.
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28 days postnatal age (+/- 3 days)
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Serum calcium level
기간: Participants will be followed for the duration of hospital stay, an expected average of 4 months
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Serum calcium measurement per blood obtained either centrally or by heel stick, performed for clinical care.
High serum calcium level is greater than 3 mmol/l of total calcium or total calcium of >12 mg/dL, or ionized calcium >2 mml/L.
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Participants will be followed for the duration of hospital stay, an expected average of 4 months
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Urine calcium level
기간: Participants will be followed for the duration of hospital stay, an expected average of 4 months
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Calcium measurement per urine, random sampling.
High level (>95%tile) urine calcium to creatinine ratio is >3.8 mmol/mmol.
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Participants will be followed for the duration of hospital stay, an expected average of 4 months
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Meningitis
기간: Participants will be followed for the duration of hospital stay, an expected average of 4 months
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Culture proven or culture negative clinically treated course consistent with meningitis
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Participants will be followed for the duration of hospital stay, an expected average of 4 months
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기타 결과 측정
결과 측정 |
기간 |
|---|---|
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Death or Neurodevelopmental Impairment
기간: Birth to 22-26 months of age
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Birth to 22-26 months of age
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공동 작업자 및 조사자
수사관
- 연구 책임자: Ariel A. Salas, MD, University of Alabama at Birmingham
간행물 및 유용한 링크
일반 간행물
- Huey SL, Acharya N, Silver A, Sheni R, Yu EA, Pena-Rosas JP, Mehta S. Effects of oral vitamin D supplementation on linear growth and other health outcomes among children under five years of age. Cochrane Database Syst Rev. 2020 Dec 8;12(12):CD012875. doi: 10.1002/14651858.CD012875.pub2.
- Fort P, Salas AA, Nicola T, Craig CM, Carlo WA, Ambalavanan N. A Comparison of 3 Vitamin D Dosing Regimens in Extremely Preterm Infants: A Randomized Controlled Trial. J Pediatr. 2016 Jul;174:132-138.e1. doi: 10.1016/j.jpeds.2016.03.028. Epub 2016 Apr 11.
연구 기록 날짜
연구 주요 날짜
연구 시작
기본 완료 (실제)
연구 완료 (실제)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (추정)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .
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Cholecalciferol에 대한 임상 시험
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Abant Izzet Baysal University완전한
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