NCT05088941

Brief Summary

the SARS-CoV2 pandemic has led to a major reorganization of the French Hematology and stem cell transplant departments since march 2020. Since the allogeneic stem cell transplant cannot be delayed especially when patients with hematological malignancies are in a fragile remission, risking relapse at any time, the necessity to maintain safe hematopoietic stem cell (HSC) donations from match unrelated or family donors appears rapidly mandatory during the pandemic period. To increase the safety of voluntary donations, a SARS-CoV2 Polymerase Chain Reaction test has been recommended to donors by regulatory agencies. However, due to the lack of homogeneity of care at European level, some countries do not require SARS-CoV-2 testing in asymptomatic donors. In this case, the test is performed on additional EDTA tube accompanying the graft on arrival or in the case of a missing tube (not collected or forgotten), on few milliliters of the HSC graft. This circuit had the consequence of forcing the clinicians to wait for the test result before starting the patient's conditioning regimen. The graft being already collected and received at the transplant center, and the conditioning regimen lasting on an average of 5 days, this resulted in its conservation during this minimum period and therefore its freezing by the associated cell therapy unit. However, this practice has so far been exceptional regarding allogeneic transplants, which are primarily freshly infused to ensure to the recipient the highest viability and functionality of stem cells. Since the entire freezing-thawing and washing process may impact cell viability and delay the patient's aplastic recovery, this study aimed to analyze the results of one year of allogeneic transplants infused after freezing in terms of graft quality after thawing and clinical consequences.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
89

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Mar 2020

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

Study Start

First participant enrolled

March 1, 2020

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2021

Completed
1 day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 2, 2021

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

October 15, 2021

Completed
7 days until next milestone

First Posted

Study publicly available on registry

October 22, 2021

Completed
Last Updated

July 22, 2022

Status Verified

July 1, 2022

Enrollment Period

1.5 years

First QC Date

October 15, 2021

Last Update Submit

July 19, 2022

Conditions

Keywords

allogeneic stem cell transplantSARS-CoV2freezing process

Outcome Measures

Primary Outcomes (5)

  • % of Total Nucleated Cell (TNC) yield (final TNC count / initial TNC count)

    2020-2021

  • %of CD34 + cells yield (final CD34+ cell count / initial CD34+ cell count)

    2020-2021

  • % of CFU-GM yield (final CFU-GM count / initial CFU-GM count)

    2020-2021

  • % of post-thaw CD34 viability

    2020-2021

  • % of post-thaw TNC viability

    2020-2021

Secondary Outcomes (6)

  • GvHD incidence

    2020-2021

  • infections rate

    2020-2021

  • relapse rate

    2020-2021

  • death rate

    2020-2021

  • graft rejection

    2020-2021

  • +1 more secondary outcomes

Eligibility Criteria

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

Patients (children and adults) having HSCT and treated at the CHRU of NANCY between march march 2020 to may 2021

You may qualify if:

  • patients receiving an allogeneic stem cell transplant between march 2020 and may 2021.

You may not qualify if:

  • patients receiving an allogeneic stem cell transplant before march 2020 and after may 2021.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

CHRU of Nancy

Vandœuvre-lès-Nancy, Meurthe-et-Moselle, 54500, France

Location

MeSH Terms

Conditions

COVID-19

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
professor

Study Record Dates

First Submitted

October 15, 2021

First Posted

October 22, 2021

Study Start

March 1, 2020

Primary Completion

September 1, 2021

Study Completion

September 2, 2021

Last Updated

July 22, 2022

Record last verified: 2022-07

Locations