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Rotator Cuff SyndromeNCT05976035

Exercise vs. Supplements in Rotator Cuff-Related Shoulder Pain

A study testing Exercise and Supplement in people with Rotator Cuff Syndrome, run by Istanbul University - Cerrahpasa at 1 site in Turkey (Türkiye).

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

Rotator cuff-related shoulder pain is a pathology characterized by pain and functional impairment originating from one or more rotator cuff tendons. The lifetime incidence of rotator cuff-related shoulder pain is around 67%, with an annual incidence exceeding 1%. Read more about this study

Who is it for?
Ages 40 to 65 years
Conditions the study is for
Rotator Cuff Syndrome
What is being tested?
Exercise and Supplement
Could I receive a placebo?
No, everyone receives an active treatment
How many people
58 participants
Where
1 siteTurkey (Türkiye)
Study dates
1 Oct 2025to 1 Dec 2026
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 40 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Being over the age of 40
  • Diagnosing with rotator cuff-related shoulder pain confirming through clinical examination (Hawkins Kennedy and Empty Can tests) and MRI imaging
  • Having shoulder pain for at least three months

Who cannot join

  • Having full-thickness or massive rotator cuff tear,
  • Having a history of symptoms onset due to trauma,
  • Having a history of surgery on the same shoulder,
  • Having shoulder passive external rotation <30° and flexion <120°,
  • Having shoulder instability,
  • Having an allergy to any supplement,
Show all 10Show fewer
  • Having psychological, emotional, or cognitive problems
  • Presence of shoulder problems caused by systemic diseases,
  • Presence of diabetes, presence of pregnancy or breastfeeding,
  • Malignancy.

Trial locations and contacts

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

Derya Çelik, Prof contact

+905327940169

derya.celik@iuc.edu.tr

Turkey (Türkiye)1 site
  • Department of Physical Therapy and Rehabilitation, Faculty of Health Sciences, Istanbul University-Cerrahpaşa

    Istanbul, 34500

    Derya Çelik, Prof, +905327940169, derya.celik@iuc.edu.tr

Other trials in Turkey (Türkiye)

About this study

Official title: Do Taking Supplements Provide Additional Benefits in Rotator Cuff-Related Shoulder Pain?

Rotator cuff-related shoulder pain is a pathology characterized by pain and functional impairment originating from one or more rotator cuff tendons. The lifetime incidence of rotator cuff-related shoulder pain is around 67%, with an annual incidence exceeding 1%. Many patients continue to experience pain and functional loss for up to one year, and more than half of the patients report shoulder pain persisting for over three years.

The pathophysiology underlying rotator cuff-related shoulder pain continues to be a subject of ongoing research and uncertainty, with many aspects yet to be fully elucidated. The most common belief regarding its pathogenesis involves the role of inflammation. This hypothesis is supported by the accumulation of inflammatory cells in tendons, oxidative stress, and increased levels of pro-inflammatory cytokines. In tendon pathologies with inflammatory cell accumulation and increased cytokine levels, the use of antioxidants and anti-inflammatory agents in addition to conservative treatment contributes to tendon healing. Anti-oxidants and anti-inflammatories are substances capable of preventing or delaying certain cell damage.The use of anti-inflammatory and antioxidant supplements such as Vitamin C (Vit-C), Vitamin D (Vit-D), Omega-3, and Magnesium (Mg) is recommended. Despite indicating exercise as the gold standard for managing rotator cuff-related shoulder pain and the demonstrated anti-inflammatory and anti-oxidant properties of the mentioned supplements, there are still gaps in the understanding of their effectiveness in rotator cuff-related shoulder pain.

Based on these gaps, the goal of this study is to investigate the effects of supplements (Vit-C, Vit-D, Omega-3, and Mg) given in addition to exercise on patients' blood parameters (TNF-a, IL-6, and CRP levels), pain, functional status, quality of life, and patient satisfaction in individuals with rotator cuff-related shoulder pain.

Read the detailed description

58 participants older than 40 years of age with rotator cuff-related shoulder pain for at least 3 months will be included in the study. Signed voluntary consent will be obtained from the patients. Participants will be divided into two groups. Study groups will be as follows: a) Exercise \& Supplement Group and b) Exercise Group.

Being tested
Exercise, Supplement
Keywords
Exercise, Physical Therapy, Anti-oxidant, Anti-Inflammatory
Medical subject headings
Motor Activity

What participants receive

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

  • ExerciseOther

    Structured exercise program under the supervision of a physiotherapist 3 days per week for 8 weeks

  • SupplementOther

    Receiving supplement that are prescribed by a orthopedist every day for 8 weeks

Study groups in NCT05976035
Study groupRoleWhat they receive
Exercise & Supplement GroupActive comparatorExercise \& Supplement group will take supplements that are prescribed by the orthopedist every day for 8 weeks in addition to a structured exercise program under the supervision of a physiotherapist 3 days per week for 8 weeks.
Receives: Other: Exercise; Other: Supplement
Exercise GroupActive comparatorExercise group will follow a structured exercise program under the supervision of a physiotherapist 3 days per week for 8 weeks.
Receives: Other: Exercise

What is being measured

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

  1. Visual Analog Scale (VAS)

    The scale has range 0 to 10mm. The left side (0mm) shows no pain, and the right side (10mm) shows the most severe pain imaginable. Patients will be asked to mark the severity of their shoulder pain at a point on the scale using this scale. Higher points indicate higher severity and lower points indicate lower severity.

    Measured: change from baseline pain at 12 weeks

  2. The American Shoulder and Elbow Surgeons Standardized Shoulder Assessment (ASES)

    Among the self-assessment of the patients, there are 11 items including pain level and functionality. For pain in scoring, they describe pain of increasing severity between 0 and 10; In functionality, a 4-point Likert-type scale is used to determine whether they can perform activities of daily living or not. The total score ranges from 0 (absence of function) to 100 (normal function).

    Measured: change from baseline pain at 12 weeks

  3. Quick Disabilities of The Arm, Shoulder and Hand Questionnaire (Quick DASH)

    Quick DASH is an 11-item questionnaire used to assess upper extremity functionality. The score ranges from 0 (no injury) to 100 (most severe injury).

    Measured: change from baseline pain at 12 weeks

Secondary outcomes (2)
  1. Rotator Cuff Quality of Life (RC-QoL)

    It is a self-assessment questionnaire consisting of a total of 34 questions and 5 sections assessing the disease-specific quality of life. Each question is assessed on a 100 mm visual analog scale, with 0 representing the lowest score and 100 the best score, and the total score is given as a percentage. Low scores represent low quality of life.

    Measured: 3 times for 12 weeks

  2. Global Rating of Change Scale (GRC)

    It is a scale to evaluate patient satisfaction. It is designed to determine the extent to which the patient improves or worsens over time. In our study, the change between the pre-treatment status of the participants and their current status at the 8th and 12th weeks after the treatment will be questioned. In our study, GRC consisting of 5 levels between -2 and +2 value ranges (-2: I am much worse, -1: I am worse, 0: I am the same, 1: I am better, 2: I am much better) will be preferred.

    Measured: 3 times for 12 weeks

Timeline

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

  1. First posted4 Aug 2023
  2. Study start1 Oct 2025 (estimated)
  3. Primary completion1 Oct 2026 (estimated)
  4. Study completion1 Dec 2026 (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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Participants will be divided into two groups with equal numbers by computer randomization method.
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
58 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05976035
Sponsor's protocol ID
A-3456789876
Status last verified
Mar 2025
First submitted
27 Jul 2023
Last updated
24 Mar 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Lewis J, McCreesh K, Roy JS, Ginn K. Rotator Cuff Tendinopathy: Navigating the Diagnosis-Management Conundrum. J Orthop Sports Phys Ther. 2015 Nov;45(11):923-37. doi: 10.2519/jospt.2015.5941. Epub 2015 Sep 21.

    PubMed 26390274
  • Luime JJ, Koes BW, Hendriksen IJ, Burdorf A, Verhagen AP, Miedema HS, Verhaar JA. Prevalence and incidence of shoulder pain in the general population; a systematic review. Scand J Rheumatol. 2004;33(2):73-81. doi: 10.1080/03009740310004667.

    PubMed 15163107
  • Tashjian RZ. Epidemiology, natural history, and indications for treatment of rotator cuff tears. Clin Sports Med. 2012 Oct;31(4):589-604. doi: 10.1016/j.csm.2012.07.001. Epub 2012 Aug 30.

    PubMed 23040548
  • Macfarlane GJ, Hunt IM, Silman AJ. Predictors of chronic shoulder pain: a population based prospective study. J Rheumatol. 1998 Aug;25(8):1612-5.

    PubMed 9712108
  • Litchfield R. Progressive strengthening exercises for subacromial impingement syndrome. Clin J Sport Med. 2013 Jan;23(1):86-7. doi: 10.1097/JSM.0b013e31827e9fb5.

    PubMed 23269329
  • Vaysman M, Alben M, Todd M, Ruotolo C. Pharmacologic Enhancement of Rotator Cuff Repair: A Narrative Review. Orthop Rev (Pavia). 2022 Sep 4;14(3):37782. doi: 10.52965/001c.37782. eCollection 2022.

    PubMed 36072503
  • Yuan T, Qian H, Yu X, Meng J, Lai CT, Jiang H, Zhao JN, Bao NR. Proteomic analysis reveals rotator cuff injury caused by oxidative stress. Ther Adv Chronic Dis. 2021 Mar 17;12:2040622320987057. doi: 10.1177/2040622320987057. eCollection 2021.

    PubMed 33796243
  • Metsios GS, Moe RH, Kitas GD. Exercise and inflammation. Best Pract Res Clin Rheumatol. 2020 Apr;34(2):101504. doi: 10.1016/j.berh.2020.101504. Epub 2020 Apr 2.

    PubMed 32249021
  • Delgado DA, Lambert BS, Boutris N, McCulloch PC, Robbins AB, Moreno MR, Harris JD. Validation of Digital Visual Analog Scale Pain Scoring With a Traditional Paper-based Visual Analog Scale in Adults. J Am Acad Orthop Surg Glob Res Rev. 2018 Mar 23;2(3):e088. doi: 10.5435/JAAOSGlobal-D-17-00088. eCollection 2018 Mar.

    PubMed 30211382
  • Celik D, Atalar AC, Demirhan M, Dirican A. Translation, cultural adaptation, validity and reliability of the Turkish ASES questionnaire. Knee Surg Sports Traumatol Arthrosc. 2013 Sep;21(9):2184-9. doi: 10.1007/s00167-012-2183-3. Epub 2012 Aug 30.

    PubMed 22932692
  • Beaton DE, Wright JG, Katz JN; Upper Extremity Collaborative Group. Development of the QuickDASH: comparison of three item-reduction approaches. J Bone Joint Surg Am. 2005 May;87(5):1038-46. doi: 10.2106/JBJS.D.02060.

    PubMed 15866967
  • Cinar-Medeni O, Ozengin N, Baltaci G, Duzgun I. Turkish version of the Rotator Cuff Quality of Life questionnaire in rotator cuff-impaired patients. Knee Surg Sports Traumatol Arthrosc. 2015 Feb;23(2):591-5. doi: 10.1007/s00167-014-3290-0. Epub 2014 Sep 11.

    PubMed 25209207
  • Kamper SJ, Maher CG, Mackay G. Global rating of change scales: a review of strengths and weaknesses and considerations for design. J Man Manip Ther. 2009;17(3):163-70. doi: 10.1179/jmt.2009.17.3.163.

    PubMed 20046623
  • Matthews TJ, Hand GC, Rees JL, Athanasou NA, Carr AJ. Pathology of the torn rotator cuff tendon. Reduction in potential for repair as tear size increases. J Bone Joint Surg Br. 2006 Apr;88(4):489-95. doi: 10.1302/0301-620X.88B4.16845.

    PubMed 16567784
  • Millar NL, Hueber AJ, Reilly JH, Xu Y, Fazzi UG, Murrell GA, McInnes IB. Inflammation is present in early human tendinopathy. Am J Sports Med. 2010 Oct;38(10):2085-91. doi: 10.1177/0363546510372613. Epub 2010 Jul 1.

    PubMed 20595553

Questions about this trial

What is this clinical trial studying?

A study testing Exercise and Supplement in people with Rotator Cuff Syndrome, run by Istanbul University - Cerrahpasa 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 10 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: opening soon, as of the sponsor's last update on 24 Mar 2025. 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 Derya Çelik, Prof (+905327940169, derya.celik@iuc.edu.tr), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Visual Analog Scale (VAS) (time frame: change from baseline pain at 12 weeks). The study lists 3 primary outcomes in all. 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 NCT05976035, which also lists 16 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 24 Mar 2025.

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