NCT02824471

Brief Summary

'Sickle-shaped' anemia was first clinically described in the US in 1910, and the mutated heritable sickle hemoglobin molecule was identified in 1949. The pathophysiology of SCD is a consequence of abnormal polymerization of sickle hemoglobin (HbS) and its effects on red cell membrane properties, shape, and density, and subsequent critical changes in inflammatory cell and endothelial cell function. Our goal is to understand the impact of CMA abnormalities in SCD, by interrogating a number of recognized interactions in a range of clinical phenotypes. To date, correlative studies in SCD, by us and others, have range between clinical reports, based on tests, interventions, and chart review of individuals or groups of individuals and, at the other extreme, identification of functional gene polymorphisms based on population studies. The investigators wish to augment these studies through a systematic examination of cellular membrane properties and activation status. Of hematologic disorders, SCD may be unusually susceptible to such an examination.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
100

participants targeted

Target at P50-P75 for all trials

Timeline
24mo left

Started Oct 2014

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
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

Study Progress85%
Oct 2014May 2028

Study Start

First participant enrolled

October 1, 2014

Completed
8 months until next milestone

First Submitted

Initial submission to the registry

May 27, 2015

Completed
1.1 years until next milestone

First Posted

Study publicly available on registry

July 6, 2016

Completed
11.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2028

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2028

Last Updated

August 21, 2025

Status Verified

August 1, 2025

Enrollment Period

13.7 years

First QC Date

May 27, 2015

Last Update Submit

August 15, 2025

Conditions

Keywords

Sickle Cell DiseaseBiofluidic Chip Technology

Outcome Measures

Primary Outcomes (1)

  • Develop an SCD Biochip with which to examine key cellular properties and interactions, including RBC and WBC cellular, adhesive, and inflammatory properties, and circulating endothelial and hematopoietic precursor cell characteristics.

    Red and white cell adhesion to biomolecules (e.g. laminin, fibronectin, and selectins) will be measured on a microfluidic device, the SCD Biochip. Adhesion will be measured under normal oxygen and low oxygen conditions. Adhesions will be assessed relative to clinical findings, such as hematology parameters, and evidence for vaso-occlusion, pain, inflammation, and vasculopathy in patients with sickle cell disease.endothelial and hematopoietic precursor cells based on membrane properties and adhesion.

    2 years

Secondary Outcomes (1)

  • Correlate SCD Biochip function in heterogeneous SCD populations, including HbSS and HbSC at a range of ages, and in those with acute and chronic complications and compared with normal controls.

    2 years

Study Arms (2)

Minor SCD Group, Ages 12-17

No Intervention. Use of discarded blood/tissue only

Other: SCD Group

Adult SCD. Ages 18+

No Intervention. Use of discarded blood/tissue only

Other: SCD Group

Interventions

No Intervention. Use of discard blood/tissue

Adult SCD. Ages 18+Minor SCD Group, Ages 12-17

Eligibility Criteria

Age12 Years+
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Children (≥12 years old) and adults with SCD, including HbSS or compound heterozygus HbSC- or HbSβ- thalassemia will be offered participation. Control samples (HbAA) may be obtained from healthy volunteers.

You may qualify if:

  • Male or female ≥12 years of age at the time of consent (enrollment).
  • Documentation Sickle Cell Disease, including HbSS or compound heterozygus HbSC- or HbSβ- thalassemia diagnosis as evidenced by one or more clinical features.
  • Written informed consent (and assent when applicable) obtained from subject or subject's legal representative and ability for subject to comply with the requirements of the study.

You may not qualify if:

  • Presence of a condition or abnormality that in the opinion of the Investigator would compromise the safety of the patient or the quality of the data.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Hospitals Case Medical Center

Cleveland, Ohio, 44106, United States

RECRUITING

Related Publications (101)

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Biospecimen

Retention: SAMPLES WITHOUT DNA

This is a non-treatment study. The investigators will utilize the leftover blood or cast-off collected from the same blood that will be drawn during participants standard-of-care outpatient or hospital visit.

MeSH Terms

Conditions

Anemia, Sickle Cell

Condition Hierarchy (Ancestors)

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

Study Officials

  • Amma Owusu-Ansah, MD

    University Hospitals Cleveland Medical Center

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Umut Gurkan, PhD

CONTACT

Study Design

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

Study Record Dates

First Submitted

May 27, 2015

First Posted

July 6, 2016

Study Start

October 1, 2014

Primary Completion (Estimated)

May 31, 2028

Study Completion (Estimated)

May 31, 2028

Last Updated

August 21, 2025

Record last verified: 2025-08

Data Sharing

IPD Sharing
Will not share

Locations