NCT06823219

Brief Summary

Sickle cell disease (SCD), the most common genetic disease worldwide and in France, is an inherited haemoglobinopathy characterised by chronic haemolytic anaemia, vaso-occlusive crisis (VOC), acute pain, and multi-organ damage. Due to anaemia and multiple pulmonary, cardiac, endothelial, muscle, and metabolic dysfunctions, fatigue and poor physical capacity are common in SCD patients and constitute the primary reason for a sedentary lifestyle. However, recent findings demonstrated in the first randomised, controlled, and prospective study implementing endurance training in SCD that, when adequately calibrated, regular moderate-intensity endurance training is not only safe but also beneficial for patients (primary outcome: improvement of physical ability). This pivotal randomised, controlled, prospective study is designed to prove, on a large multicentre cohort, adult and paediatric, including patients with complications and over a longer period (one year). The objective of the study is to demonstrate the efficacy of participating in a program of regular physical activity to reduce the rate of vaso-occlusive crises requiring hospitalisation and to improve physical ability in patients with SCD.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
120

participants targeted

Target at P50-P75 for not_applicable

Timeline
29mo left

Started Sep 2024

Longer than P75 for not_applicable

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

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Study Timeline

Key milestones and dates

Study Progress42%
Sep 2024Oct 2028

First Submitted

Initial submission to the registry

February 6, 2024

Completed
7 months until next milestone

Study Start

First participant enrolled

September 1, 2024

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2024

Completed
4 months until next milestone

First Posted

Study publicly available on registry

February 12, 2025

Completed
3.6 years until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2028

Expected
Last Updated

February 12, 2025

Status Verified

January 1, 2025

Enrollment Period

1 month

First QC Date

February 6, 2024

Last Update Submit

February 7, 2025

Conditions

Keywords

sickle cell disease, endurance training

Outcome Measures

Primary Outcomes (2)

  • Number of vaso-occlusive crises (VOCs) with hospitalisation

    determine the hospitalization rate for vaso-occlusive crisis

    12 months

  • Exercise capacity and muscle metabolism and characteristics

    the change from baseline in the workload at first lactate threshold. A blood sample (7 µL) will be taken from the earlobe and immediately analysed (in less than 20 seconds, Lactate Scout+, EKF Diagnostics) to determine the blood lactate concentration (\[lactate\]b). Exercise should be stopped when a \[lactate\]b of 4 mmol/L is reached

    12 months

Secondary Outcomes (10)

  • Duration of hospitalisation

    12 months

  • Median time from the initiation of "treatment" (training or habitual (inactive) lifestyle) to the first and second hospitalised VOC

    12 months

  • Number of acute chest syndromes (ACS)

    12 months

  • Days of school and job absenteeism

    12 months

  • Analgesic intake

    12 months

  • +5 more secondary outcomes

Study Arms (2)

trained arm

EXPERIMENTAL

Groupe 2: 52 weeks of out-of-hospital physical activity (The patients of the trained arm with a V̇O2 at SL2 \>75% of the predicted V̇O2 at SL2) Groupe 3: 8 weeks of in hospital endurance training 3/weeks and 44 weeks of out- of-hospital physical activity (Patients identified as presenting severity criteria )

Other: endurance training program

untrained arm

NO INTERVENTION

Groupe 1: 52 weeks of unchanged rhythm

Interventions

Groupe 2: 52 weeks of out-of-hospital physical activity Groupe 3: 8 weeks of in hospital endurance training 3/weeks and 44 weeks of out- of-hospital physical activity

trained arm

Eligibility Criteria

Age15 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Aged over 15 years and 3 months
  • Male or female
  • Patients with sickle cell disease (HbSS or HbS-βthal0)
  • Affiliated to a social security system
  • Having freely given their written consent after having been informed of the purpose, the procedure and the potential risks involved
  • Patients in stabilised condition at the start of the experiment: at least 1 month after an acute chronic event or at least 3 months after a blood transfusion.
  • Patients hospitalised for vaso-occlusive crisis at least once in the last 3 years

You may not qualify if:

  • Patient whose adherence to the protocol is unlikely according to the investigator
  • Patients who already partake in regular physical activity (more than 1 hour of moderate-intensity physical activity per week)
  • Patients with a chronic inflammatory and/or infectious pathology
  • Patients with an intercurrent condition unresolved for less than a month
  • Patients hospitalised for cardiac decompensation during the last 12 months
  • Patients on anticoagulant treatment or with a pacemaker/defibrillator
  • Pregnant patients / breastfeeding woman
  • Patients deprived of liberty by judicial or administrative decision or patient under guardianship
  • Patients unable to understand the objectives and conditions of the study and unable to give cons

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Henri Mondor Hospital

Créteil, 94000, France

RECRUITING

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 Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Masking Details
Randomization will be in a 1:2 ratio between the untrained and trained arms, respectively. Randomization will be stratified on treatment by hydroxyurea, gender and age.
Purpose
OTHER
Intervention Model
PARALLEL
Model Details: Prospective, randomised, controlled trial, multicentric, open label
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 6, 2024

First Posted

February 12, 2025

Study Start

September 1, 2024

Primary Completion

October 1, 2024

Study Completion (Estimated)

October 1, 2028

Last Updated

February 12, 2025

Record last verified: 2025-01

Data Sharing

IPD Sharing
Will not share

Locations