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OverweightNCT07910916

Effects of Concurrent Training on Serum PCSK9 Levels in Adults With Overweight

A study testing Concurrent Aerobic and Resistance Training in people with Overweight and Lipid Metabolism, run by Kastamonu University at 1 site in Turkey (Türkiye).

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

Being overweight can increase the risk of heart disease. PCSK9 is a protein that helps regulate cholesterol levels in the blood. Exercise may affect PCSK9 levels, but previous studies have reported conflicting results. Read more about this study

Who is it for?
Ages 18 to 40 yearsHealthy volunteers can take part
What is being tested?
Concurrent Aerobic and Resistance Training
Could I receive a placebo?
No, everyone receives an active treatment
How many people
42 participants
Where
1 siteTurkey (Türkiye)
Study dates
2 Nov 2026to 30 May 2028
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 40 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Adults aged 18-40 years.
  • Body mass index (BMI) between 25.0 and 29.9 kg/m².
  • No participation in a regular exercise program during the previous two months (3-5 days per week, totaling 150 minutes per week).

Who cannot join

  • Diagnosed coronary artery disease, heart failure, hypertension, diabetes mellitus, or other chronic cardiovascular or metabolic diseases.
  • Acute or chronic inflammatory disease or active infection.
  • History of malignancy or active cancer.
  • Neurological, orthopedic, or musculoskeletal conditions that prevent participation in physical exercise.
  • Current use of antihypertensive, lipid-lowering, antidiabetic, systemic glucocorticoid, or other medications that may affect PCSK9 levels.
  • Current smoking or use of other tobacco products.
Show all 9Show fewer
  • Pregnancy or breastfeeding.
  • Loss of 5% or more of body weight during the previous three months or participation in a weight-loss diet.
  • Bariatric surgery or use of pharmacological weight-management treatment during the previous three months.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Turkey (Türkiye)1 site, 1 recruiting
  • Kastamonu University, Çatalzeytin Vocational School

    Çatalzeytin, Kastamonu, 37940

    Yasin Ak, +903662801000 ext. 4505, yasinak@kastamonu.edu.tr

    Recruiting

Other trials in Turkey (Türkiye)

About this study

Official title: Effects of Concurrent Training on Serum PCSK9 Levels in Adults With Overweight: A Randomized Controlled Trial

Being overweight can increase the risk of heart disease. PCSK9 is a protein that helps regulate cholesterol levels in the blood. Exercise may affect PCSK9 levels, but previous studies have reported conflicting results.

The purpose of this study is to determine whether a program combining aerobic exercise and resistance training changes blood PCSK9 levels in adults with overweight. The researchers will also examine changes in blood cholesterol levels and body composition.

Read more

A total of 42 adults aged 18-40 years with overweight will be randomly assigned to one of two groups. One group will participate in a supervised exercise program three days per week for eight weeks. Each session will last approximately 60 minutes and include aerobic exercise, resistance training, warm-up, and cool-down periods. The other group will continue their usual daily activities without participating in a structured exercise program provided by the study.

Blood samples and body measurements will be collected before the program, after four weeks, and after eight weeks. Participants will also record their usual food intake and physical activity during the study.

The researchers expect that the combined exercise program may reduce blood PCSK9 levels compared with maintaining usual daily activities. The findings may help improve understanding of how exercise affects cholesterol regulation in adults with overweight.

Read the detailed description

Background and Rationale

Overweight is associated with an increased risk of cardiovascular disease, partly through adverse changes in blood lipid levels. Proprotein convertase subtilisin/kexin type 9 (PCSK9) is a protein involved in cholesterol regulation. It binds to low-density lipoprotein receptors (LDLR) and promotes their degradation, thereby reducing the removal of low-density lipoprotein cholesterol (LDL-C) from the bloodstream.

Regular exercise is an important lifestyle strategy for improving cardiovascular health and lipid metabolism. Previous research suggests that exercise may influence circulating PCSK9 levels, potentially contributing to changes in cholesterol regulation. However, studies investigating the effects of physical activity and exercise on PCSK9 have reported conflicting findings, with some showing reductions and others reporting increases. Therefore, the effects of structured exercise training on circulating PCSK9 levels remain unclear.

Study Objectives

The primary objective of this study is to investigate the effects of an eight-week concurrent aerobic and resistance training program on serum PCSK9 levels in adults with overweight, compared with a control group maintaining their usual daily activities.

The study will also examine changes in blood lipid levels, glucose concentrations, anthropometric measurements, and body composition. Additionally, the relationship between serum PCSK9 levels and body composition will be investigated.

Study Design and Procedures

This study is designed as a single-center, two-arm, parallel-group randomized controlled trial. Participants will be randomly allocated to either a supervised concurrent training group or a non-exercising control group using block randomization with a 1:1 allocation ratio.

The exercise program will combine aerobic and resistance training under professional supervision. Participants in the control group will be asked to maintain their usual daily activities without receiving a structured exercise intervention.

Biochemical, anthropometric, and body composition assessments will be performed at baseline, 4 and 8 weeks after baseline. Blood samples will be collected after an overnight fast to assess serum PCSK9 and metabolic markers.

To help account for potential changes in lifestyle behaviors, dietary intake and habitual physical activity will be monitored throughout the study using three-day dietary records and three-day physical activity records at the specified assessment periods.

Expected Contribution

This study is expected to provide evidence regarding the effects of concurrent aerobic and resistance training on circulating PCSK9 levels in adults with overweight. The findings may contribute to a better understanding of the relationship between exercise, PCSK9, and cholesterol metabolism and may help inform future research on exercise-based approaches to cardiovascular risk management.

Being tested
Concurrent Aerobic and Resistance Training
Keywords
PCSK9, Concurrent training, Aerobic Exercise, Resistance Training, Overweight, LDL Cholesterol
Medical subject headings
Overweight

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Concurrent Aerobic and Resistance TrainingBehavioural

    Participants in the intervention group will complete an eight-week supervised concurrent aerobic and resistance training program, consisting of three sessions per week. Each 60-minute session will include a 5-minute warm-up, 25 minutes of aerobic exercise, 25 minutes of resistance exercise, and a 5-minute cool-down.

    Aerobic exercise will be performed on a treadmill or cycle ergometer at 40-60% of heart rate reserve.

    Resistance training will include eight exercises targeting major muscle groups: chest press, lat pull-down, hamstring curl, quadriceps extension, shoulder press, biceps curl, triceps extension, and abdominal crunch. Participants will perform two sets of 8-16 repetitions at 50-80% of their 10-repetition maximum, with approximately one minute of rest between sets.

    All sessions will be conducted under professional supervision. Heart rate and perceived exertion will be monitored during exercise using a heart rate monitor and the Borg Rating of Perceived Exertion Scale.

Study groups in NCT07910916
Study groupRoleWhat they receive
Concurrent Training GroupExperimentalParticipants assigned to this group will perform supervised concurrent aerobic and resistance training three times per week for eight weeks.
Receives: Behavioral: Concurrent Aerobic and Resistance Training
Control GroupNo interventionParticipants assigned to the control group will not receive a structured exercise intervention. They will be instructed to maintain their usual physical activity, dietary habits, and daily routines throughout the eight-week study period.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in Serum PCSK9 Concentration

    Serum PCSK9 concentration will be measured using an enzyme-linked immunosorbent assay (ELISA). Changes over time will be compared between the concurrent training and control groups.

    Measured: At baseline and 4 and 8 weeks after baseline

Secondary outcomes (15)
  1. Change in Serum LDL Cholesterol Concentration

    Serum low-density lipoprotein cholesterol (LDL-C) concentration will be assessed from fasting blood samples. Changes over time will be compared between the concurrent training and control groups.

    Measured: At baseline and 4 and 8 weeks after baseline

  2. Change in Serum HDL Cholesterol Concentration

    Serum high-density lipoprotein cholesterol (HDL-C) concentration will be assessed from fasting blood samples. Changes over time will be compared between the concurrent training and control groups.

    Measured: At baseline and 4 and 8 weeks after baseline

  3. Change in Serum Total Cholesterol Concentration

    Serum total cholesterol concentration will be measured from fasting blood samples using an enzymatic colorimetric method. Changes over time will be compared between groups.

    Measured: At baseline and 4 and 8 weeks after baseline

  4. Change in Serum Triglyceride Concentration

    Serum triglyceride concentration will be measured from fasting blood samples using an enzymatic colorimetric method. Changes over time will be compared between groups.

    Measured: At baseline and 4 and 8 weeks after baseline

  5. Change in Fasting Serum Glucose Concentration

    Fasting serum glucose concentration will be measured using an enzymatic colorimetric method. Changes over time will be compared between groups.

    Measured: At baseline and 4 and 8 weeks after baseline

  6. Change in Body Weight

    Body weight will be measured in kilograms (kg) using a digital scale (Tanita RD-545).

    Measured: At baseline and 4 and 8 weeks after baseline

  7. Change in Body Mass Index

    Body mass index (BMI) will be calculated as body weight in kilograms divided by height in meters squared (kg/m²).

    Measured: At baseline and 4 and 8 weeks after baseline

  8. Change in Waist Circumference

    Waist circumference will be measured in centimeters (cm) at the midpoint between the lowest rib and iliac crest.

    Measured: At baseline and 4 and 8 weeks after baseline

  9. Change in Hip Circumference

    Hip circumference will be measured in centimeters (cm) at the widest part of the hips.

    Measured: At baseline and 4 and 8 weeks after baseline

  10. Change in Waist-to-Hip Ratio

    Waist-to-hip ratio will be calculated by dividing waist circumference by hip circumference. The ratio is dimensionless.

    Measured: At baseline and 4 and 8 weeks after baseline

  11. Change in Waist-to-Height Ratio

    Waist-to-height ratio will be calculated by dividing waist circumference by height, expressed in the same units. The ratio is dimensionless.

    Measured: At baseline and 4 and 8 weeks after baseline

  12. Change in Body Fat Percentage

    Body fat percentage (%) will be assessed using bioelectrical impedance analysis (Tanita RD-545).

    Measured: At baseline and 4 and 8 weeks after baseline

  13. Change in Fat Mass

    Total body fat mass will be assessed in kilograms (kg) using bioelectrical impedance analysis (Tanita RD-545).

    Measured: At baseline and 4 and 8 weeks after baseline

  14. Change in Fat-Free Mass

    Fat-free mass will be assessed in kilograms (kg) using bioelectrical impedance analysis (Tanita RD-545).

    Measured: At baseline and 4 and 8 weeks after baseline

  15. Change in Muscle Mass

    Muscle mass will be assessed in kilograms (kg) using bioelectrical impedance analysis (Tanita RD-545).

    Measured: At baseline and 4 and 8 weeks after baseline

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted2 Nov 2026
  2. Study start2 Nov 2026 (estimated)
  3. Primary completion30 Dec 2027 (estimated)
  4. Study completion30 May 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
42 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07910916
Sponsor's protocol ID
KÜBAP2-01/2026-36
Status last verified
Nov 2026
First submitted
27 Oct 2026
Last updated
3 Nov 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Individual participant data will not be shared with external researchers. The informed consent form provides for the use and processing of participant data for the approved study but does not explicitly address secondary data sharing with external researchers.

Publications

  • Smart NA, Downes D, van der Touw T, Hada S, Dieberg G, Pearson MJ, Wolden M, King N, Goodman SPJ. The Effect of Exercise Training on Blood Lipids: A Systematic Review and Meta-analysis. Sports Med. 2025 Jan;55(1):67-78. doi: 10.1007/s40279-024-02115-z. Epub 2024 Sep 27.

    PubMed 39331324
  • Kamani CH, Gencer B, Montecucco F, Courvoisier D, Vuilleumier N, Meyer P, Mach F. Stairs instead of elevators at the workplace decreases PCSK9 levels in a healthy population. Eur J Clin Invest. 2015 Oct;45(10):1017-24. doi: 10.1111/eci.12480. Epub 2015 Aug 26.

    PubMed 26081791

Questions about this trial

What is this clinical trial studying?

A study testing Concurrent Aerobic and Resistance Training in people with Overweight and Lipid Metabolism, run by Kastamonu University at 1 site in Turkey (Türkiye).

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 3 Nov 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Yasin Ak, PhD (+90 538 443 96 25, fztyaso5@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in Serum PCSK9 Concentration (time frame: At baseline and 4 and 8 weeks after baseline). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT07910916, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Nov 2026.

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