NCT06773871

Brief Summary

Somatic mutations as seen in myeloid malignancies can also be detected in healthy, elderly individuals (clonal hematopoiesis of indeterminate potential, CHIP), in patients with unex-plained cytopenia, that do not fulfill the criteria for myeloid malignancy (clonal cytopenia of un-determined significance, CCUS) It has been shown that these conditions predispose to hema-tological cancer. For patients with CCUS, it has been reported that in a 5-year period up to 50-90 % of the patients will progress to myelodysplastic syndrome (MDS) or acute myeloid leu-kemia (AML), both devastating diseases with poor outcomes, especially for the elderly popula-tion. There is currently no treatment available for patients with CCUS besides supporting agents. Since the somatic mutations can be detected up to 10 years before a diagnosis of MDS, it opens the potential for early intervention. Physical inactivity is associated with multiple solid cancers, and it has been suggested that exercise can prevent for example certain colon- or breast cancers. Studies in mice have shown that exercise can reduce tumor size and incidence of solid cancers, and different mechanisms have been suggested including increased immune cell infiltration, reduced systemic inflamma-tion, and metabolic changes. The mechanisms of disease progression of pre-leukemia and MDS are complex and probably multifactorial, but recent studies suggest that components such as natural killer cells, adipocytes, and inflammatory substances in the bone marrow mi-croenvironment play a crucial role; factors that exercise may modulate. In addition, recent stud-ies have shown that increased bone marrow adipose tissue (BMAT) may create a microenvi-ronment that supports the expansion of leukemic cells and thus may facilitate disease progres-sion, and earlier studies among healthy, younger individuals have shown that exercise can reduce the amount of BMAT significantly. Therefore, the investigators hypothesize that exercise may prevent or delay the progression from pre-leukemia to leukemia by altering the microenvironment in the bone marrow. The purpose with this clinical, pilot trial where patients with the preleukemic condition CCUS or early stage of leukemia (i.e., lower-risk MDS) will undergo an individualized exercise interven-tion, is to investigate:

  1. 1.whether an exercise intervention and the trial set-up, are feasible and safe in this cohort,
  2. 2.potential mechanisms in leukemogenesis affected by exercise in controlling dis-ease progression,
  3. 3.and the effect hereof on quality of life and activities of daily living. The above will inform the decision-making on designing a larger randomized, controlled trial.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
36

participants targeted

Target at P25-P50 for not_applicable

Timeline
8mo left

Started Mar 2025

Typical duration for not_applicable

Geographic Reach
1 country

2 active sites

Status
recruiting

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 Progress64%
Mar 2025Jan 2027

First Submitted

Initial submission to the registry

January 8, 2025

Completed
6 days until next milestone

First Posted

Study publicly available on registry

January 14, 2025

Completed
2 months until next milestone

Study Start

First participant enrolled

March 10, 2025

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2027

Last Updated

August 19, 2025

Status Verified

August 1, 2025

Enrollment Period

1.8 years

First QC Date

January 8, 2025

Last Update Submit

August 18, 2025

Conditions

Outcome Measures

Primary Outcomes (4)

  • Exercise feasibility: Exercise sessions attendance

    The number of attended exercise training sessions relative to the number of planned exercise sessions

    From baseline until the end of12 weeks of supervised exercise. And after 12 weeks of no supervised exercise.

  • Exercise feasibility: Recruitment, refusal, and retention rates

    The number of patients recruited to the study, the number of patients who refused to be enrolled in the study, the number of participants that completed the study

    From baseline until end of intervention (24 weeks)

  • Incidence of Adverse Events (AEs)

    AE will be recorded during trial assessment visits and through medical records. This procedure will concern any AE during the trial period. We will collect patients' self-report of AEs for each trial visit and telephone interview, which may have occurred since the last trial visit and telephone interview.

    From baseline until the end of intervention (24 weeks)

  • Incidence of Serious Adverse Events (SAEs)

    SAE will be recorded during trial assessment visits and through medical records. This procedure will concern any SAE during the trial period. We will collect patients' self-report of SAEs for each trial visit and telephone interview, which may have occurred since the last trial visit and telephone interview.

    From baseline until the end of intervention (24 weeks)

Secondary Outcomes (31)

  • Changes in peak oxygen consumption (VO2 peak)

    From baseline until the end of12 weeks of supervised exercise. And after 12 weeks of no supervised exercise.

  • Changes in Aerobic Capacity: Peak power output

    From baseline until the end of12 weeks of supervised exercise. And after 12 weeks of no supervised exercise.

  • Changes in Muscle strength: Hand grip strength

    From baseline until the end of 12 weeks of supervised exercise. And after 12 weeks of no supervised exercise.

  • Changes in Functional performance: Habitual gait speed

    From baseline until the end of 12 weeks of supervised exercise. And after 12 weeks of no supervised exercise.

  • Changes in Functional performance: 30 seconds Sit-to-stand

    From baseline until the end of 12 weeks of supervised exercise. And after 12 weeks of no supervised exercise.

  • +26 more secondary outcomes

Study Arms (2)

Control

ACTIVE COMPARATOR

Usual care

Other: Control

Exercise intervention

EXPERIMENTAL

High-intensity interval exercise (180 min/week)

Interventions

Weekly supervised exercise for 12 weeks followed by 12 weeks of non-supervised exercise

ControlOTHER

Remain usual activity level

Control

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • A diagnosis of either Lower-risk of Myelodysplastic Syndrome or Clonal Cytopenia of undetermined significance(WHO 2022 Classification)
  • Written informed consent prior to study procedures
  • Performance status ≤ 2
  • Age \> 18 years old

You may not qualify if:

  • Physically not able to undergo exercise intervention (e.g., arthrosis, physical disabilities)
  • Exercising on a regular basis (i.e., participants must score in the category "low" when screening with International Physical Activity Questionnaire-Short Form; IPAQ-SF27)
  • Unwillingness to undergo exercise intervention
  • Use of metformin
  • Treatment with chemotherapy, therapeutic radiation, or immunosuppressive therapy within the last year
  • Treatment with hypomethylating agents
  • Any absolute contraindication to undergo cardiopulmonary exercise testing according to working papers from American Heart Association and Danish Society of Cardiology
  • Hemoglobin levels \< 5.5 mmol OR \<6.5 mmol and simultaneous cardiac insufficiency OR pacemaker.
  • Blood transfusion-dependent ≥ 8 units of red blood cell transfusion in 16 weeks (IWG 2018-criteria)
  • Uncontrolled co-morbidity

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Rigshospitalet

Copenhagen, Denmark, 2100, Denmark

NOT YET RECRUITING

Rigshospitalet

Copenhagen, Denmark

RECRUITING

MeSH Terms

Conditions

Myelodysplastic SyndromesCytopenia

Interventions

Exercise

Condition Hierarchy (Ancestors)

Bone Marrow DiseasesHematologic DiseasesHemic and Lymphatic Diseases

Intervention Hierarchy (Ancestors)

Motor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Central Study Contacts

Kirsten Gørnbæk, Professor

CONTACT

Stine Bitsch-Olsen, MSc

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor, MD

Study Record Dates

First Submitted

January 8, 2025

First Posted

January 14, 2025

Study Start

March 10, 2025

Primary Completion (Estimated)

January 1, 2027

Study Completion (Estimated)

January 1, 2027

Last Updated

August 19, 2025

Record last verified: 2025-08

Locations