SUSPENDED

NASA Prebreathe Study

Study Overview

This clinical trial focuses on testing the efficacy of different digital interventions to promote re-engagement in cancer-related long-term follow-up care for adolescent and young adult (AYA) survivors of childhood cancer.

Description

This study will validate the experimental method and chamber facility at the Duke Center for Hyperbaric Medicine \& Environmental Physiology and test team capabilities to support NASA decompression sickness (DCS) studies. This project is related to development of protocols for extravehicular activity (EVA, "spacewalks") to minimize the risk of decompression sickness. Duke will perform four test days, collecting and recording data each day. Each test day will involve 3 volunteer subjects ages 18-50 years, who will breathe 100% oxygen for 6 hours. This will be followed by 6 hours in the hypobaric chamber at 1/3 atmosphere, during which subjects will perform various tasks, including arm and leg exercises, and undergo ultrasound testing to detect vascular bubbles. End-points will include bubble scores, and decompression sickness (DCS). If subjects develop DCS symptoms they will immediately be recompressed to ambient pressure and be assessed and treated.

Official Title

NASA Prebreathe Study

Quick Facts

Study Start:2025-05-05
Study Completion:2025-10-30
Study Type:Not specified
Phase:Not Applicable
Enrollment:Not specified
Status:SUSPENDED

Study ID

NCT06740305

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Ages Eligible for Study:18 Years to 50 Years
Sexes Eligible for Study:ALL
Accepts Healthy Volunteers:Yes
Standard Ages:ADULT
Inclusion CriteriaExclusion Criteria
  1. * Non-smokers
  2. * VO2pk \>35 ml/kg/min (males)
  3. * VO2pk \>30 ml/kg/min (females)
  1. * Pregnancy
  2. * Lung and heart disease
  3. * Hypertension
  4. * Diabetes
  5. * Musculoskeletal pain conditions
  6. * Need for regular medications such as analgesics

Contacts and Locations

Principal Investigator

Richard E Moon, MD
PRINCIPAL_INVESTIGATOR
Duke University

Study Locations (Sites)

Duke University Medical Center
Durham, North Carolina, 27710
United States

Collaborators and Investigators

Sponsor: Duke University

  • Richard E Moon, MD, PRINCIPAL_INVESTIGATOR, Duke University

Study Record Dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates

Study Start Date2025-05-05
Study Completion Date2025-10-30

Study Record Updates

Study Start Date2025-05-05
Study Completion Date2025-10-30

Terms related to this study

Keywords Provided by Researchers

  • Space
  • Microgravity
  • Decompression
  • Decompression sickness
  • Altitude

Additional Relevant MeSH Terms

  • Decompression Sickness