NCT00012545

Brief Summary

This study will determine the best ways to collect, process and store umbilical cord blood from babies with sickle cell disease, sickle cell trait and unaffected babies. Sickle cell disease is an abnormality of the hemoglobin in red blood cells that causes the cells to change shape and clump together, preventing their normal flow in the bloodstream. This impairs blood flow to various organs, and the resulting oxygen deprivation causes organ damage. Cord blood is rich in stem cells (cells produced in the bone marrow that mature to different types of blood cells), which may prove useful in new sickle cell therapies. However, cord blood from babies with sickle cell trait, sickle cell disease and normal babies may act differently under laboratory conditions, so it is important to learn how best to work with blood from all three groups of babies for future use in possible treatments. Pregnant women between 18 and 45 years of age who are at risk of having an infant with sickle cell disease and normal volunteers who are pregnant and not at risk for this disease may be eligible for this study. Potential participants will be counseled about donating her infant s blood in order to make an informed choice. All women who participate in the study will provide a medical history and have blood collected from the umbilical cord and placenta (afterbirth) after the baby s delivery. The blood will be tested for various infectious diseases, processed, frozen and stored for research purposes. In addition, blood from women with babies at risk for sickle cell disease will be tested for the presence of the sickle cell gene, tissue typed, and used for research as follows:

  • Sickle cell disease - If cord blood tests show the baby has sickle cell disease, the blood will be frozen for an indefinite period of time for possible use in future treatment of the child. This treatment could include stem cell transplantation or gene therapy, treatments are not currently considered routine for sickle cell disease.
  • Sickle cell trait or normal hemoglobin - If cord blood tests show the baby has sickle cell trait or is unaffected, the blood will be processed and stored for up to 3 years, during which time it may possibly be used to treat a currently living or future sibling with sickle cell disease. After 3 years, the participant may agree to either have the blood discarded, given to research or moved to another facility for continued storage at the participant s expense, if there is a storage fee. Alternatively, if there is no anticipated future need for the collected blood, or if it does not meet standards needed for future treatment, it will be used in NIH-approved research studies. Participants and their family doctor or the baby s pediatrician will be contacted twice a year for information about changes in the baby s health. Participants may also be asked permission to perform new tests developed by researchers. ...

Trial Health

87
On Track

Trial Health Score

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

Enrollment
307

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Nov 2001

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
completed

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

First Submitted

Initial submission to the registry

March 10, 2001

Completed
2 days until next milestone

First Posted

Study publicly available on registry

March 12, 2001

Completed
8 months until next milestone

Study Start

First participant enrolled

November 1, 2001

Completed
22 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 17, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 17, 2023

Completed
Last Updated

January 9, 2026

Status Verified

January 1, 2026

Enrollment Period

22 years

First QC Date

March 10, 2001

Last Update Submit

January 8, 2026

Conditions

Keywords

Stem CellsSickle Cell DiseaseUmbilical Cord BloodNatural History

Outcome Measures

Primary Outcomes (1)

  • To procure cord blood units (CBU) from newborns at risk for sickle cell disease, sickle cell trait, and related disorders as well as normal newborns, as controls

    To evaluate the feasibility of performing directed donor umbilical cord blood banking for families at risk for having children with congenital diseases amenable to treatment by autologous gene therapy or allogeneic hematopoietic transplantation; in this protocol, the feasibility will be studied specifically in families with risk for sickle cell anemia and related syndromes.

    end-of-study

Study Arms (1)

Healthy Pregnant Volunteers

Pregnant women whose babies are at risk for sickle cell anemia will be identified and referred to the NIH Research Coordinator for evaluation and entry into the study

Eligibility Criteria

Age18 Years - 45 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

This is a pilot feasibility study for which umbilical cord blood samples will be collected and transported to the NIH Clinical Center for our developmental research. Pregnant women whose babies are at risk for sickle cell anemia will be identified and referred to the NIH Research Coordinator for evaluation and entry into the study. The NIH Research Coordinator is experienced in performing patient education and counseling concerning sickle cell disease, and obtaining informed consent.

You may qualify if:

  • Pregnant women who are at risk of having an infant or infants (in case of multiple births) with sickle cell
  • disease of the following types:
  • Hemoglobin Sbeta 0 thalassemia
  • Hemoglobin Sbeta + thalassemia
  • Hemoglobin SC
  • Hemoglobin SD
  • Hemoglobin SE
  • Hemoglobin SS
  • Or other sickle-related variant determined acceptable by PI
  • Maternal subjects must be between 18 and 45 years old.
  • Maternal subjects must be able to provide informed consent.
  • Maternal subjects must work with their obstetrician to insure appropriate cord blood collection, sample collection, and completion of related documents.
  • Maternal subjects enrolled on other studies are not excluded, unless the other study may interfere with the present one.

You may not qualify if:

  • The maternal subject will not be eligible for study if she is known to be positive for one or more of the following diseases transmissible by blood: HIV, hepatitis B, hepatitis C, WNV, HTLV or ZIKV.
  • Maternal subject will not be eligible for the study if she has active syphilis, toxoplasmosis, malaria or
  • Maternal subject will not be eligible for the study if the pregnancy resulted from egg donation or sperm donation.
  • Maternal subject is unable to give informed consent.
  • Maternal subject is known to have a fetus with a significant congenital anomaly, either not compatible with life, or requiring immediate surgical intervention or care in the Neonatal Intensive Care Unit.
  • Maternal subject has cancer or received treatment for cancer during pregnancy.
  • Infant is premature (\<34 weeks).
  • Maternal subject may be excluded at the time of delivery if the attending physician or collection staff deems that the cord blood collection is inadvisable, due to unanticipated obstetrical complications.
  • Cord blood received by CCBB/STLC is greater than 72 hours from collection

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Institutes of Health Clinical Center

Bethesda, Maryland, 20892, United States

Location

Related Publications (3)

  • Fraser JK, Cairo MS, Wagner EL, McCurdy PR, Baxter-Lowe LA, Carter SL, Kernan NA, Lill MC, Slone V, Wagner JE, Wallas CH, Kurtzberg J. Cord Blood Transplantation Study (COBLT): cord blood bank standard operating procedures. J Hematother. 1998 Dec;7(6):521-61. doi: 10.1089/scd.1.1998.7.521.

    PMID: 9919946BACKGROUND
  • Klein HG, Garner RJ, Miller DM, Rosen SL, Statham NJ, Winslow RM. Automated partial exchange transfusion in sickle cell anemia. Transfusion. 1980 Sep-Oct;20(5):578-84. doi: 10.1046/j.1537-2995.1980.20581034515.x.

    PMID: 7423597BACKGROUND
  • Sykes M, Szot GL, Swenson KA, Pearson DA. Induction of high levels of allogeneic hematopoietic reconstitution and donor-specific tolerance without myelosuppressive conditioning. Nat Med. 1997 Jul;3(7):783-7. doi: 10.1038/nm0797-783.

    PMID: 9212108BACKGROUND

Related Links

MeSH Terms

Conditions

Anemia, Sickle CellSickle Cell Trait

Condition Hierarchy (Ancestors)

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

Study Officials

  • John F Tisdale, M.D.

    National Heart, Lung, and Blood Institute (NHLBI)

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
CROSS SECTIONAL
Sponsor Type
NIH
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 10, 2001

First Posted

March 12, 2001

Study Start

November 1, 2001

Primary Completion

October 17, 2023

Study Completion

October 17, 2023

Last Updated

January 9, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations