Phase III Randomized, Double-Blind, Placebo-Controlled Study of Antenatal Thyrotropin-Releasing Hormone in Pregnant Women With Threatened Premature Delivery

OBJECTIVES: I. Evaluate the effect of thyrotropin-releasing hormone (TRH) on the severity of initial lung disease and occurrence of chronic lung disease when given antenatally to women with threatened premature delivery. II. Evaluate possible mechanisms for the effects of TRH on the severity and incidence of chronic lung disease. III. Investigate whether a deficiency in endogenous cortisol and/or...

Date First Received: February 24, 2000

Last Updated: June 23, 2005

Verified by: Office of Rare Diseases (ORD), December 2001

Clinical Trial Phase: Phase 3 | Start Date: August 1993

Overall Status: Completed

Estimated Enrollment: 1090

Brief Summary

Condition Keyword(s):

OBJECTIVES: I. Evaluate the effect of thyrotropin-releasing hormone (TRH) on the severity of initial lung disease and occurrence of chronic lung disease when given antenatally to women with threatened premature delivery.

II. Evaluate possible mechanisms for the effects of TRH on the severity and incidence of chronic lung disease.

III. Investigate whether a deficiency in endogenous cortisol and/or thyroid hormones after birth influences the severity of lung disease and the development of chronic lung disease.

Study Type: Interventional

Study Design: Treatment, Randomized, Double-Blind, Placebo Control

Detailed Clinical Trial Description

PROTOCOL OUTLINE: This is a randomized, double-blind study. Participants are stratified by participating institution.

Participants are randomly assigned to 1 of 2 treatment groups. The first group is treated with intravenous thyrotropin-releasing hormone (TRH) and intramuscular injections of betamethasone or dexamethasone. The second group receives a placebo in place of TRH.

Postnatal therapy with surfactants, prophylactic steroids, and indomethacin is allowed.

Intervention(s) in this Clinical Trial

  • Drug: betamethasone
  • Drug: dexamethasone
  • Drug: thyrotropin-releasing hormone

Criteria for Participation in this Clinical Trial

PROTOCOL ENTRY CRITERIA:

  • -Disease Characteristics-- Threatened premature delivery at 24 to 30 weeks gestation, i.e.: Premature labor Premature rupture of membranes Elective premature delivery medically indicated Fetal lung maturity immature or unknown --Prior/Concurrent Therapy-- No more than 72 hours since any initial corticosteroids --Patient Characteristics-- The following complications exclude: Fetal distress Amnionitis Severe maternal bleeding uncontrolled with transfusion or volume replacement Fetal or maternal heart disease Significant fetal blood loss Maternal blood pressure 140/90 mm Hg or higher with or without treatment Maternal hyperthyroidism Maternal hyperprolactinemic condition Significant fetal anomaly Multiple gestation with demise of 1 or more fetuses Nonimmune hydrops No participation in other clinical research projects

Gender Eligibility for this Clinical Trial: Female

Minimum Age for this Clinical Trial: N/A

Maximum Age for this Clinical Trial: N/A

Are Healthy Volunteers Accepted for this Clinical Trial?: No

Clinical Trial Sponsor Information

Lead Sponsor: National Center for Research Resources (NCRR)

Overall Clinical Trial Officials and Contacts

Roberta A. Ballard Study Chair Children's Hospital of Philadelphia  

Additional Information

Information obtained from ClinicalTrials.gov on August 29, 2008

Link to the current ClinicalTrials.gov record. http://clinicaltrials.gov/show/NCT00004778

Study ID Number: 199/11826

ClinicalTrials.gov Identifier: NCT00004778

Health Authority: United States: Federal Government

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