NCT04031521

Brief Summary

Endothelial dysfunction contributes to vaso-occlusion and acute pain in sickle cell disease. Near infrared spectroscopy (NIRS) technology can measure tissue oxygenation and endothelial function. The main objective of this study is to study the natural history of tissue muscle oxygenation using NIRS in pediatric sickle cell subjects experiencing acute pain and pediatric sickle cell patients in steady-state.

Trial Health

30
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Timeline
Completed

Started Jun 2019

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
withdrawn

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 26, 2019

Completed
26 days until next milestone

First Submitted

Initial submission to the registry

July 22, 2019

Completed
2 days until next milestone

First Posted

Study publicly available on registry

July 24, 2019

Completed
4.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 3, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 3, 2023

Completed
Last Updated

September 14, 2023

Status Verified

September 1, 2023

Enrollment Period

4.2 years

First QC Date

July 22, 2019

Last Update Submit

September 12, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Tissue oxygenation

    6 months

Secondary Outcomes (1)

  • Nitric oxide

    6 months

Study Arms (2)

Sickle cell pain crisis

Diagnostic Test: Near infrared spectroscopy

Sickle cell steady-state

Diagnostic Test: Near infrared spectroscopy

Interventions

NIRS is an emerging technology for measuring tissue oxygenation and endothelial function. NIRS light can penetrate through biological tissues, including skin, bone, and muscle. Similar to other optical methods, light is applied to the region of interest and undergoes scattering and absorption before being detected by a photosensor. This technique is commonly used to assess oxygen availability and consumption in living tissues. Using different wavelengths, NIRS can differentiate between oxygenated and deoxygenated hemoglobin in blood and can measure changes in total hemoglobin concentration, using the sum of oxygenated and deoxygenated hemoglobin.

Sickle cell pain crisisSickle cell steady-state

Eligibility Criteria

Age6 Years - 21 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Subjects 6 to 21 years of age of all sickle cell genotypes

You may qualify if:

  • Age 6 to 21 years old.
  • Diagnosis of sickle cell anemia: a. Diagnosis of sickle cell disease (electrophoresis or HPLC documentation of hemoglobin SS, SC, S-beta-thalassemia or other hemoglobinopathies causing sickle cell disease is required).
  • Acute onset pain crisis in a distribution typical for that subject, onset within the last 7 days and for which hospitalization and parenteral narcotic pain treatment are required.
  • Ability to provide informed written consent.

You may not qualify if:

  • Pregnancy.
  • History of non-trivial injury, burns, surgery or skin ulcers on the arms.
  • Fever or suspected sepsis at time of pain crisis
  • Administration of any of the following drugs within the last 14 days:
  • Phosphodiesterase-5 inhibitors (sildenafil, vardenafil, tadalafil)
  • Endothelin-1 receptor blockers (bosentan, sitaxentan, ambrisentan, tezosentan)
  • Nitric oxide donors (nitroglycerin, nitroprusside, nitrates)
  • Ingestion of caffeine within the 12 hours before the start of the study appointment, or tobacco use within the 30 days before the study appointment.
  • Diagnosis with any of the following chronic diseases or conditions:
  • History of high blood pressure
  • History of high cholesterol
  • History of diabetes
  • History of chronic kidney disease (serum creatinine must not be greater than 2 mg/dL)
  • History of coronary artery disease or peripheral vascular disease
  • Received a blood transfusion within 7 days of the study procedure.
  • +19 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Children's National Medical Center

Washington D.C., District of Columbia, 20010, United States

Location

MeSH Terms

Conditions

Anemia, Sickle Cell

Interventions

Spectroscopy, Near-Infrared

Condition Hierarchy (Ancestors)

Anemia, Hemolytic, CongenitalAnemia, HemolyticAnemiaHematologic DiseasesHemic and Lymphatic DiseasesHemoglobinopathiesGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and Abnormalities

Intervention Hierarchy (Ancestors)

Diagnostic ImagingDiagnostic Techniques and ProceduresDiagnosisSpectrum AnalysisChemistry Techniques, AnalyticalInvestigative Techniques
0

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Chief of Hematology

Study Record Dates

First Submitted

July 22, 2019

First Posted

July 24, 2019

Study Start

June 26, 2019

Primary Completion

September 3, 2023

Study Completion

September 3, 2023

Last Updated

September 14, 2023

Record last verified: 2023-09

Data Sharing

IPD Sharing
Will not share

Locations