NCT05459376

Brief Summary

Introduction: Currently, clinical practice guidelines recommend exercise as a first-line approach to the treatment of chronic low back pain (LBP). On the other hand, passive techniques such as cupping therapy have gained space in the management of this population, however, important gaps regarding the combination of cupping therapy with active exercises in individuals with nonspecific chronic low back pain are still present in the literature. In this context, this protocol describes a sham-controlled, randomized and blinded study that aims to evaluate the additional effects of cupping therapy in association with McKenzie method exercises on pain and functional outcomes of individuals with nonspecific chronic low back pain. Methods: 108 individuals with nonspecific and localized chronic low back pain in the age group of 18 to 59 years will be recruited and evaluated, regarding the inclusion and exclusion criteria. Subsequently, they will be randomized to one of 2 groups: intervention group, in which they will be submitted to the McKenzie method intervention and later the addition of the dry suction cup; and sham group, in which, after the intervention of the McKenzie method, the application of the sham cup will be added.

Trial Health

63
Monitor

Trial Health Score

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

Enrollment
80

participants targeted

Target at P50-P75 for not_applicable low-back-pain

Timeline
20mo left

Started Jan 2026

Typical duration for not_applicable low-back-pain

Geographic Reach
1 country

1 active site

Status
not yet 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 Progress17%
Jan 2026Jan 2028

First Submitted

Initial submission to the registry

July 11, 2022

Completed
4 days until next milestone

First Posted

Study publicly available on registry

July 15, 2022

Completed
3.5 years until next milestone

Study Start

First participant enrolled

January 1, 2026

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2027

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2028

Last Updated

April 2, 2025

Status Verified

April 1, 2025

Enrollment Period

1 year

First QC Date

July 11, 2022

Last Update Submit

April 1, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in Disability - ODI

    The Oswestry Disability Index (ODI) questionnaire will be used to analyze disability in people with low back pain.This instrument contains 10 items that assess the impact of low back pain on various functional activities. Values range from 0 to 5, with the highest value indicating greater disability. The final result is the sum of all items. The validated version in Portuguese is used.

    baseline and 8 weeks after

Secondary Outcomes (5)

  • Change Numerical Pain Scale - NPS

    baseline, immediately after 1 intervention, 4 and 8 weeks after the intervention

  • Change in Functional test - Timed Up and Go (TUG)

    baseline and 8 weeks after

  • Change in Trunk range of motion - Range of motion (ROM)

    baseline, immediately after 1 intervention, 4 and 8 weeks after the intervention

  • Change in participant perception

    baseline and 8 weeks after

  • Change in participant expectation

    baseline

Study Arms (2)

Intervention Group

EXPERIMENTAL

Participants in the intervention group will receive an assessment, classification as to McKenzie method (MDT) syndrome and indication of the preferred direction of movement, whether flexion, extension or lateral displacement of the spine ; will receive basic information about low back pain (LBP), its prevalence and prognosis; plus how and why to exercise; and types of responses that may occur in response to the exercise program. Guidance for performing the exercises at home. Dry suction cup application with 6 size 1 acrylic cups (4.5 cm internal diameter) with a distance of 3 cm each cup, parallel to the L1 to L5 vertebrae, bilaterally according to the acupoint boundaries, B23, B24 and B25 . This group will consist of performing MDT exercises and dry cupping with 2 suctions for 10 minutes, 2 times a week, for 8 weeks.

Other: Exercises and dry cupping

Sham Group

SHAM COMPARATOR

The sham group will follow the same principles of evaluation, classification and intervention according to the McKenzie method (MDT) (described in the intervention group) and will have a placebo dry cup application with 6 size 1 acrylic cups (4.5 cm internal diameter) with a distance of 3 cm each cup, parallel to the vertebrae L1 to L5, bilaterally . This group will consist of placebo dry cupping for 10 minutes, 2 times a week, for 8 weeks. However, cups will be prepared with small holes \<2 mm in diameter to release negative pressure in seconds.

Other: Exercises and dry cupping

Interventions

Participants in the intervention group will receive an assessment, classification as to MDT syndrome and indication of the preferred direction of movement, whether flexion, extension or lateral displacement of the spine

Also known as: exercises
Intervention GroupSham Group

Eligibility Criteria

Age18 Years - 59 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Individuals, male and female, 18 to 59 years, non-obese, with non-specific localized LBP for more than 3 months;
  • Report pain intensity between 3 and 8 according to the numerical pain scale;

You may not qualify if:

  • Have previously performed cupping therapy in some body segment;
  • Present neurological, vestibular, visual or auditory deficits that make assessments impossible;
  • Being in the gestational period;
  • Having severe spinal disease (including fractures, tumour, inflammatory diseases, or tumours);
  • Have undergone previous spinal surgery;
  • Present with radiating or sacroiliac back pain; another rheumatic disease such as fibromyalgia,or ankylosing spondylitis.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Marcelo Cardoso de Souza

Natal, Rio Grande do Norte, 59200-000, Brazil

Location

Related Publications (3)

  • Almeida Silva HJ, Barbosa GM, Scattone Silva R, Saragiotto BT, Oliveira JMP, Pinheiro YT, Lins CAA, de Souza MC. Dry cupping therapy is not superior to sham cupping to improve clinical outcomes in people with non-specific chronic low back pain: a randomised trial. J Physiother. 2021 Apr;67(2):132-139. doi: 10.1016/j.jphys.2021.02.013. Epub 2021 Mar 20.

    PMID: 33757719BACKGROUND
  • Almeida Silva HJ, Avila MA, Castro KMS, Pinheiro YT, Lins CAA, Medeiros Barbosa G, de Souza MC. Exploring patient experiences of participating in a real and sham dry cupping intervention for nonspecific low back pain: A qualitative study. PLoS One. 2022 May 19;17(5):e0268656. doi: 10.1371/journal.pone.0268656. eCollection 2022.

    PMID: 35587506BACKGROUND
  • da Silva KMP, Almeida Silva HJ, Pontes-Silva A, DeSantana JM, Avila MA, Barbosa GM, de Souza MC. What are the effects of dry cupping therapy combined with the McKenzie method on clinical outcomes in chronic low back pain? A protocol for a randomized, sham-controlled trial. BMC Complement Med Ther. 2025 Jul 2;25(1):219. doi: 10.1186/s12906-025-04940-9.

MeSH Terms

Conditions

Low Back Pain

Interventions

Exercise

Condition Hierarchy (Ancestors)

Back PainPainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Motor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Study Officials

  • Marcelo C de Souza, PT, PhD

    Universidade Federal do Rio Grande do Norte

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Marcelo C de Souza, PT, PhD

CONTACT

Germanna B Medeiros, PT, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
All assessments will be carried out by researcher A who will not be involved with the interventions and will remain blind to the identification of groups. Each participant will remain identified by numbers and not names. Participants will be informed about the aim of the study to assess the additional effect of two different cupping techniques, the classic and the sham, in association with active exercise. In order not to compromise the blinding of the study, all participants will undergo the same assessment before the interventions. Intervention times will be differentiated so that there is no contact between the groups and possible exchanges of information. Data collected during participant assessments will not be revealed to the researchers responsible for the interventions.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Intervention Group and Sham Group
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Adjunct Professor

Study Record Dates

First Submitted

July 11, 2022

First Posted

July 15, 2022

Study Start

January 1, 2026

Primary Completion (Estimated)

January 1, 2027

Study Completion (Estimated)

January 1, 2028

Last Updated

April 2, 2025

Record last verified: 2025-04

Data Sharing

IPD Sharing
Will not share

there is not a plan to make individual participant data (IPD) available to other researchers.

Locations