Cooperative Assessment of Late Effects for SCD Curative Therapies (COALESCE)
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The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT05153967 |
Recruitment Status :
Recruiting
First Posted : December 10, 2021
Last Update Posted : August 26, 2022
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Condition or disease |
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Sickle Cell Disease Pulmonary Disease Renal Disease Heart Disease |
Study Type : | Observational |
Estimated Enrollment : | 750 participants |
Observational Model: | Cohort |
Time Perspective: | Other |
Official Title: | U01 Cooperative Assessment of Late Effects for Sickle Cell Disease Curative Therapies |
Actual Study Start Date : | July 12, 2022 |
Estimated Primary Completion Date : | December 2025 |
Estimated Study Completion Date : | February 2026 |

Group/Cohort |
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Pediatric Myeloablative allo-HSCT
Participants ages 4 to 17 years old with SCD who underwent or are scheduled to undergo myeloablative allo-HSCT.
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Pediatric Standard Disease-Modifying Therapy
Participants ages 4 to 17 years old with SCD who receive standard therapy.
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Adult Non-Myeloablative allo-HSCT
Participants ages 18 to 65 years old with SCD who underwent or are scheduled to undergo non-myeloablative allo-HSCT.
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Adult Standard Disease-Modifying Therapy
Participants ages 18 to 65 years old with SCD who receive standard therapy.
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- Measurement of longitudinal change in FEV1 [ Time Frame: Through study completion, an average of four years ]Measurements of forced expiratory volume in 1 second (FEV1) based on the global lung index will be acquired from children with SCD receiving myeloablative curative therapies and adults with SCD receiving nonmyeloablative allo-HSCT, as well as from the respective control children and adult cohorts with SCD who received standard therapy. FEV1 will be reported in liters. (References: Eur Respir J. Volume 40 Issue 6: pages 1324-1343, 2012 June 27; Am J Hematol. Volume 93 Issue 3: pages 408-415, 2018 March).
- Percent predicted value of longitudinal change in FEV1 [ Time Frame: Through study completion, an average of four years ]Percent predicted of forced expiratory volume in 1 second (FEV1) based on the global lung index will be acquired from children with SCD receiving myeloablative curative therapies and adults with SCD receiving nonmyeloablative allo-HSCT, as well as from the respective control children and adult cohorts with SCD who received standard therapy. FEV1 will be reported in percentage. (References: Eur Respir J. Volume 40 Issue 6: pages 1324-1343, 2012 June 27; Am J Hematol. Volume 93 Issue 3: pages 408-415, 2018 March).
- Measurement of longitudinal change in FVC [ Time Frame: Through study completion, an average of four years ]Measurements of forced volume capacity (FVC) based on the global lung index will be acquired from children with SCD receiving myeloablative curative therapies and adults with SCD receiving nonmyeloablative allo-HSCT, as well as from the respective control children and adult cohorts with SCD who received standard therapy. FVC will be reported in liters. (References: Eur Respir J. Volume 40 Issue 6: pages 1324-1343, 2012 June 27; Am J Hematol. Volume 93 Issue 3: pages 408-415, 2018 March).
- Percent predicted value of longitudinal change in FVC [ Time Frame: Through study completion, an average of four years ]Percent predicted of forced volume capacity (FVC) on the global lung index will be acquired from children with SCD receiving myeloablative curative therapies and adults with SCD receiving nonmyeloablative allo-HSCT, as well as from the respective control children and adult cohorts with SCD who received standard therapy. FVC will be reported in percentage. (References: Eur Respir J. Volume 40 Issue 6: pages 1324-1343, 2012 June 27; Am J Hematol. Volume 93 Issue 3: pages 408-415, 2018 March).
- FEV1/FVC Ratio Percentage [ Time Frame: Through study completion, an average of four years ]Percentage of FEV1/FVC ratio based on the global lung index will be acquired from children with SCD receiving myeloablative curative therapies and adults with SCD receiving nonmyeloablative allo-HSCT, as well as from the respective control children and adult cohorts with SCD who received standard therapy. (References: Eur Respir J. Volume 40 Issue 6: pages 1324-1343, 2012 June 27; Am J Hematol. Volume 93 Issue 3: pages 408-415, 2018 March). FEV1/FVC will be reported in percentage.
- Longitudinal change in eGFR [ Time Frame: Through study completion, an average of four years ]
Estimated GFR (eGFR) as a determinant of kidney disease will be collected from children with SCD receiving myeloablative curative therapies and adults with SCD receiving nonmyeloablative allo-HSCT, as well as from the respective control children and adult cohorts with SCD who received standard therapy. The eGFR will be tested as a linear variable and using eGFR Categories according to the KDIGO 2012 Guidelines (Table 5 - Reference: Kidney Int Suppl. Volume 3 Issue 1: pages 19-62, 2013 Jan) as follows:
i.G1 >/ 90 mL/min/1.73m2 ii.G2 60 - 89 mL/min/1.73m2 iii.G3a 45 - 59 mL/min/1.73m2 iv.G3b 30 - 44 mL/min/1.73m2 v.G4 15 - 20 mL/min/1.73m2 vi.G5 < 15 mL/min/1.73m2 The standard technique of measured GFR will be used and reported in mL/min/1.73m2.
- Longitudinal change in albuminuria levels [ Time Frame: Through study completion, an average of four years ]Data pertaining to persistent albuminuria (defined as >/ 30 mg/g creatinine on 2 evaluations) associated with a more rapid decline in eGFR on longitudinal follow-up (Reference: Blood Adv. Volume 4 Issue 7: pages 1501-1511, 2020 Apr 14) will be tested. Results will be reported in mg/g.
- Longitudinal change in TRJV in adults with SCD treated with nonmyeloablative allo HSCT in adults [ Time Frame: Through study completion, an average of four years ]Improvement in TRJV in adults with SCD following HSCT will be acquired. Results will be reported in m/sec.
- Longitudinal change in SBP/DBP in adults with SCD treated with nonmyeloablative allo HSCT in adults [ Time Frame: Through study completion, an average of four years ]Measurements of Systolic blood pressure (SBP)/Diastolic blood pressure (DBP) in adults with SCD following HSCT will be acquired. Results will be reported as a ratio (SBP (mmHg)/DBP (mmHg)).
Biospecimen Retention: Samples With DNA

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Ages Eligible for Study: | 4 Years to 65 Years (Child, Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Sampling Method: | Non-Probability Sample |
Inclusion Criteria
- Confirmed laboratory diagnosis of SCD
- Ability to give informed consent
- Ability to provide pre- and post-curative therapy data
- Treated with either one HSCT or with standard disease-modifying therapy
Exclusion Criteria
•History of non-compliance

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05153967
Contact: Leshana Saint Jean, PhD | 6158751992 | leshana.saint.jean@vumc.org | |
Contact: Kristin Wuichet, PhD | 6159366098 | kristin.wuichet@vumc.org |
United States, District of Columbia | |
Children's National Medical Center | Not yet recruiting |
Washington, District of Columbia, United States, 20010 | |
Contact: Allistair Abraham, MD 202-476-6690 AAbraham@childrensnational.org | |
United States, Georgia | |
Emory University School of Medicine | Not yet recruiting |
Atlanta, Georgia, United States, 30322 | |
Contact: Vivien Sheehan, MD, PhD 404-727-7100 vivien.sheehan@emory.edu | |
United States, Maryland | |
Johns Hopkins Hospital | Not yet recruiting |
Baltimore, Maryland, United States, 21287 | |
Contact: Richard Jones, MD 667-312-2400 rjjones@jhmi.edu | |
National Institutes of Health Clinical Center | Not yet recruiting |
Bethesda, Maryland, United States, 20814 | |
Contact: Courtney Fitzhugh, MD 301-402-6496 courtney.fitzhugh@nih.gov | |
United States, Tennessee | |
Vanderbilt University Medical Center | Recruiting |
Nashville, Tennessee, United States, 37232-9000 | |
Contact: Michael R. DeBaun, MD, MPH 615-875-3040 ext 5-3040 m.debaun@vumc.org |
Principal Investigator: | Michael R DeBaun, MD, MPH | Vanderbilt University Medical Center |
Responsible Party: | Michael DeBaun, Professor of Pediatrics and Medicine, Vanderbilt University Medical Center |
ClinicalTrials.gov Identifier: | NCT05153967 |
Other Study ID Numbers: |
210806 |
First Posted: | December 10, 2021 Key Record Dates |
Last Update Posted: | August 26, 2022 |
Last Verified: | August 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | This research study's sharing plan involves study data, publications, and outcomes. We will adhere to the NIH Public Access Policy (NOT-OD-08-033) and provide publications generated through funding by this project at the time the final, peer- reviewed papers are accepted for journal publication to the National Library of Medicine's PubMed Central, either through NIHMS (NIH Manuscript Submission) or through the Publisher. All applicable proposals, applications, and reports will include the PubMed Central number (PMCID) for all NIH-funded papers. All sequence data will be uploaded to database of Genotypes and Phenotype (dbGaP). |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Myeloablative Autologous Gene Editing Myeloablative Autologous Gene Therapy Myeloablative allo-HSCT Nonmyeloablative allo-HSCT Disease-Modifying Therapy |
Heart Diseases Anemia, Sickle Cell Cardiovascular Diseases Anemia, Hemolytic, Congenital Anemia, Hemolytic |
Anemia Hematologic Diseases Hemoglobinopathies Genetic Diseases, Inborn |