NCT07330141

Brief Summary

This study compared the effects of constant-load aerobic exercise (CL-AEx) and graded aerobic exercise (G-AEx) on cardiopulmonary fitness and functional capacity in pediatric survivors of acute lymphoblastic leukemia (ALL). A cohort of 72 pediatric ALL survivors was randomly assigned to one of three groups: a CL-AEx group (n=24), a G-AEx group (n=24), or a control group (n=24). All groups participated in a structured exercise regimen. The CL-AEx group performed additional moderate-intensity aerobic training at a fixed load, while the G-AEx group performed additional aerobic training with progressive increases in intensity and duration. The control group performed the structured exercise regimen only. Interventions were administered three times per week for 12 consecutive weeks. Cardiopulmonary fitness and functional capacity were assessed in all three groups at baseline and following the completion of the 12-week intervention.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
72

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Dec 2023

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

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 3, 2023

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 31, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 31, 2024

Completed
1.2 years until next milestone

First Submitted

Initial submission to the registry

December 29, 2025

Completed
11 days until next milestone

First Posted

Study publicly available on registry

January 9, 2026

Completed
Last Updated

January 9, 2026

Status Verified

December 1, 2025

Enrollment Period

11 months

First QC Date

December 29, 2025

Last Update Submit

December 29, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Peak oxygen uptake

    The peak oxygen uptake (mL/kg/min) was assessed through a symptom-free exercise tolerance test (i.e., the McMaster cycling protocol).

    2 months

Secondary Outcomes (3)

  • Six-minute walk test

    2 months

  • 4x10 meter Shuttle Run test

    2 months

  • Timed up and down stairs test

    2 months

Study Arms (3)

CL-AEx group

EXPERIMENTAL

The CL-AEx group received a 12-week constant-load aerobic training besides a structured exercise program.

Other: Constant-load Aerobic Exercise

G-AEx group

EXPERIMENTAL

The G-AEx group received a 12-week intensity- and duration-graded aerobic training in addition to a structured exercise program.

Other: Graded Aerobic exercise

Control group

ACTIVE COMPARATOR

The control group received the structured exercise program only for 12 consecutive weeks.

Other: Structured Exercise regemin

Interventions

The CL-AEx group completed a 12-week, moderate-intensity aerobic training program in addition to the structured exercise regimen. The aerobic component was performed three times per week at a fixed intensity of 65% of the maximum age-predicted heart rate for 45 minutes per session. Each session included a 5-minute warm-up and a 5-minute cool-down. The intensity and duration remained constant throughout the intervention period.

CL-AEx group

The G-AEx group completed a 12-week aerobic training program that progressively increased in intensity and duration, in addition to the structured exercise regimen. Sessions were conducted three times per week. The program commenced at an intensity of 50% of the maximum age-predicted heart rate for 25 minutes. Parameters were increased every two weeks, culminating in an intensity of 75% for 50 minutes during the final two weeks. Each session included a standard 5-minute warm-up and 5-minute cool-down.

G-AEx group

The structured exercise regimen was conducted three times per week for 45 minutes per session over 12 consecutive weeks. Each session consisted of flexibility exercises, progressive resistance training, balance training, and low-intensity conditioning activities.

Control group

Eligibility Criteria

Age10 Years - 18 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Age between 10 and 18 years old
  • Complete maintenance chemotherapy
  • Normal cardiac structure and function
  • Absence of lower limb deformities
  • Not engaging in regular exercise regimens

You may not qualify if:

  • Secondary cancers
  • Neurodegenerative impairments affecting memory, attention, or executive functioning
  • Neuro-musculoskeletal conditions are likely to impede the training.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ragab K. Elnaggar

Al Kharj, Riyadh Region, Saudi Arabia

Location

Study Officials

  • Ragab K Elnaggar, PhD

    Prince Sattam Bin Abdulaziz University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
CARE PROVIDER, OUTCOMES ASSESSOR
Masking Details
A single-blind protocol was adopted. The researcher who collected the data was blind to the allocation of treatment
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: A prospective, three-arm, randomized controlled trial
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

December 29, 2025

First Posted

January 9, 2026

Study Start

December 3, 2023

Primary Completion

October 31, 2024

Study Completion

October 31, 2024

Last Updated

January 9, 2026

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will not share

Locations