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Chronic PainBvsBNCT05617118

BTA vs Baclofen for Pelvic Myofascial Pain Syndrome

An observational study of Chronic Pain and Chronic Pelvic Pain Syndrome, run by Saint Petersburg State University, Russia at 1 site in Russia.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The aim of the study is to test the hypothesis that oral taking of baclofen in therapeutic dosage for 60 days is equally effective as injection of botulinum toxin type "A" in the area of trigger points of the pelvic muscles. Read more about this study

Who is it for?
Ages 18 to 75 years
What is being tested?
Baclofen 10mg and Botulinum toxin type A
How many people
52 participants
Where
1 siteRussia
Study dates
1 Dec 2022to 1 May 2024
Phase
Observational
Are there results?
None posted in the registry

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 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Adult patients with long-term chronic pelvic pain syndrome who have not previously received targeted treatment for myofascial pelvic pain syndrome

Who may be able to join

  • Myofascial pain syndrome (presence of trigger points), confirmed by palpation during examination.
  • Ineffectiveness (with subsequent discontinuation) of at least one treatment method, including outpatient physiotherapy and /or oral analgesics, or NSAIDs.

Who cannot join

  • The presence of any organic disease of the pelvic organs requiring active treatment, confirmed by anamnesis, consultation of a specialist (urologist, proctologist, gynecologist) and one of the objective imaging methods: CT, MRI, endoscopical or laboratory methods: general urine analysis or prostate secretion analysis. Such diseases include interstitial cystitis / SBMP, chronic prostatitis types I, II, IIIA according to the NIH classification.
  • The presence in the anamnesis of the fact of previously conducted therapy with baclofen or injection of botulinum toxin type "A" into the pelvic floor muscles.
  • Individual intolerance to botulinum toxin type "A" and /or baclofen.
  • Pregnancy

Trial locations and contacts

1 site in 1 country.

Russia1 site, 1 recruiting
  • SBPSU

    Saint Petersburg

    Ivan Labetov

    Recruiting

Other trials in Russia

About this study

Official title: Evaluation of Efficacy and Safety of Oral Baclofen Taking in Comparison With Botulinum Toxin A Injections in Myofascial Pelvic Pain Syndrome. Prospective Multicenter Cohort Study.

The aim of the study is to test the hypothesis that oral taking of baclofen in therapeutic dosage for 60 days is equally effective as injection of botulinum toxin type "A" in the area of trigger points of the pelvic muscles.

Read the detailed description

Chronic pelvic pain syndrome (CPPS) is an extremely common disease. The exact epidemiology and socio-economic impact cannot be determined due to its heterogeneity. Thus, according to population studies, CPPS can occur in 12.4% of women aged 18-50 years [1]. In turn, myofascial pelvic pain syndrome (MPPS) is often an underappreciated and untreated component of CPPS that occurs in at least 23% of patients and causes their complaints [2]. In men diagnosed with chronic prostatitis, in 92% of cases, complaints are caused by muscle spasm and pain in muscle structures, mistakenly interpreted by the patient as prostate pain [3]. Often, myofascial syndrome is idiopathic and is associated with problems in the musculoskeletal system. However, in some cases, the primary source is a urological, gynecological or proctological disease. The syndrome is characterized by the appearance of trigger points (TP) - "nodules" in the thickness of striated muscles, which cause distinct local soreness during palpation [4].

Treatment of this condition is complex: it includes training in relaxation of the pelvic muscles using a biofeedback therapy [5], myofascial release [6] and drug therapy. One of the drugs actively used in neurology is baclofen [7]. This drug reduces the spasticity of striated muscles. Despite the widespread using of baclofen in the treatment of neurological conditions accompanied by increased muscle tone, there are no qualitative studies evaluating its effectiveness in chronic pelvic pain syndrome.

If conservative therapy is ineffective, injections of botulinum toxin type "A" (BTA) into TP on pelvic floor muscles are the method of choice [8]. This method is a third-line treatment: thus, according to the meta-analysis of Fang Yuan Luo et al., which includes 5 RCTs and 12 observational studies, there is not enough convincing data for using BTA as the first line of treatment [9]. At the same time, there are a number of studies in which the effect of the introduction of BTA was comparable to the introduction of local anesthetics [10] and saline solution [11].

Thus, despite the inconsistency of the methods, a comparative study of the efficacy and safety of these drugs, as well as the quality of life of patients after treatment, is of interest.

Being tested
Baclofen 10mg, Botulinum toxin type A
Medical subject headings
Chronic Pain, Myofascial Pain Syndromes, Pelvic Floor Disorders

What participants receive

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

  • Baclofen 10mgDrug

    Also called Baclosan

    Baclofen is a medication, a central myorelaxant, a GABAb stimulator.

  • Botulinum toxin type ADrug

    Also called Botox, Xeomin, Dysport

    Botulinum toxin, often shortened to BoNT, is a neurotoxic protein produced by the bacterium Clostridium botulinum and related species.

Study groups in NCT05617118
Study groupRoleWhat they receive
BaclofenA cohort of patients who have not previously received baclofen will be offered a course of the drug therapy at a dosage of 10 mg according to the scheme: 1-3 days - 1 tablet per day; 4-6 days - 2 tablets per day; 7-9 days - 3 tablets per day; 10 days and then 4 tablets per day (morning and evening).
Receives: Drug: Baclofen 10mg
BTAA cohort of patients who previously received baclofen and canceled the course due to the development of side effects and/or individual intolerance, or who have contraindications to the use of this drug, will receive several injections with a total volume of 100 units. botulinum toxin type "A" in dilution up to 20 ml, distributed at the trigger points of the pelvic floor muscles.
Receives: Drug: Botulinum toxin type A

What is being measured

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

  1. PGI-I

    Patients Global Impression of Improvement (PGI-I). The PGI-I is a transition scale that is a single question asking the patient to rate their urinary tract condition now, as compared with how it was prior to before beginning treatment on a scale from 1. Very much better to 7. Very much worse.

    Measured: 60 days

Secondary outcomes (4)
  1. VAS

    Visual Analogue Scale (VAS). The most simple VAS is a straight horizontal line of fixed length, usually 100 mm. The ends are defined as the extreme limits of the parameter to be measured (symptom, pain, health) orientated from the left (worst) to the right (best). The line is divided into 10 sections. 1 section = 1 point. The more points, the more pronounced the pain syndrome - the worse outcome

    Measured: 14, 30, 60 days

  2. The Lamont Scale

    The Lamont scale was developed to aide in the diagnosis of vaginismus. The five degrees of severity are defined. The more points, the more pronounced the patient's reaction to the examination in the gynecological chair. Points from 1 to 5. The The higher the score, the more pronounced the vaginismus and fear of examination. Minimum score = 0. Maximum score = 5. The lower score, the better outcome

    Measured: 14, 30, 60 days

  3. IPSS/QoL

    International Prostate Symptom Score (IPSS). The IPSS questionnaire evaluates the impact of lower urinary tract symptoms on the patient's quality of life. It consists of 8 questions. Questionts evaluates whether the patient has symptoms of incomplete emptying of the bladder and ranges from 0 to 5 points. The increase in scores is directly proportional to the increase in symptoms. Minimum score = 0. Maximum score = 41. The lower score, the better outcome

    Measured: 14, 30, 60 days

  4. Clavien-Dindo Complication rate

    The development of complications from therapy that require its termination

    Measured: 14, 30, 60 days

Timeline

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

  1. First posted15 Nov 2022
  2. Study start1 Dec 2022
  3. Primary completion31 Dec 2023 (estimated)
  4. Study completion1 May 2024 (estimated)

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
52 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05617118
Sponsor's protocol ID
22/30 301
Acronym
BvsB
Status last verified
Apr 2023
First submitted
7 Nov 2022
Last updated
11 Apr 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes

Publications

  • Zondervan K, Barlow DH. Epidemiology of chronic pelvic pain. Baillieres Best Pract Res Clin Obstet Gynaecol. 2000 Jun;14(3):403-14. doi: 10.1053/beog.1999.0083.

    PubMed 10962634
  • Tu FF, As-Sanie S, Steege JF. Prevalence of pelvic musculoskeletal disorders in a female chronic pelvic pain clinic. J Reprod Med. 2006 Mar;51(3):185-9.

    PubMed 16674013
  • Zermann D, Ishigooka M, Doggweiler R, Schmidt R. Chronic prostatitis: A myofascial pain syndrome? Infections in Urology 1999;12:84-92

  • Jha S, Toozs-Hobson P, Roper JC, Gurung S, Brair A, Bach F. Botulinum injections for myofascial pelvic pain. Int Urogynecol J. 2021 May;32(5):1151-1156. doi: 10.1007/s00192-020-04435-w. Epub 2020 Jul 21.

    PubMed 32696187
  • Hite M, Curran T. Biofeedback for Pelvic Floor Disorders. Clin Colon Rectal Surg. 2021 Jan;34(1):56-61. doi: 10.1055/s-0040-1714287. Epub 2020 Sep 4.

    PubMed 33536850
  • Peñas CF de las, Campo MS, Carnero JF, Page JCM. Manual therapies in myofascial trigger point treatment: A systematic review. Journal of Bodywork and Movement Therapies 2005;9:27-34. doi:10.1016/j.jbmt.2003.11.001.

  • Chang WJ. Muscle Relaxants for Acute and Chronic Pain. Phys Med Rehabil Clin N Am. 2020 May;31(2):245-254. doi: 10.1016/j.pmr.2020.01.005. Epub 2020 Mar 13.

    PubMed 32279727
  • Morrissey D, El-Khawand D, Ginzburg N, Wehbe S, O'Hare P 3rd, Whitmore K. Botulinum Toxin A Injections Into Pelvic Floor Muscles Under Electromyographic Guidance for Women With Refractory High-Tone Pelvic Floor Dysfunction: A 6-Month Prospective Pilot Study. Female Pelvic Med Reconstr Surg. 2015 Sep-Oct;21(5):277-82. doi: 10.1097/SPV.0000000000000177.

    PubMed 25900057
  • Luo FY, Nasr-Esfahani M, Jarrell J, Robert M. Botulinum toxin injection for chronic pelvic pain: A systematic review. Acta Obstet Gynecol Scand. 2020 Dec;99(12):1595-1602. doi: 10.1111/aogs.13946. Epub 2020 Jul 16.

    PubMed 32597494
  • Levesque A, Ploteau S, Michel F, Siproudhis L, Bautrant E, Eggermont J, Rabischong B, Volteau C, Perrouin-Verbe MA, Labat JJ. Botulinum toxin infiltrations versus local anaesthetic infiltrations in pelvic floor myofascial pain: Multicentre, randomized, double-blind study. Ann Phys Rehabil Med. 2021 Jan;64(1):101354. doi: 10.1016/j.rehab.2019.12.009. Epub 2020 Jan 22.

    PubMed 31981833
  • Parsons BA, Goonewardene S, Dabestani S, Pacheco-Figueiredo L, Yuan Y, Zumstein V, Cottrell AM, Borovicka J, Dinis-Oliveira P, Berghmans B, Elneil S, Hughes J, Messelink BEJ, de C Williams AC, Baranowski AP, Engeler DS. The Benefits and Harms of Botulinum Toxin-A in the Treatment of Chronic Pelvic Pain Syndromes: A Systematic Review by the European Association of Urology Chronic Pelvic Pain Panel. Eur Urol Focus. 2022 Jan;8(1):320-338. doi: 10.1016/j.euf.2021.01.005. Epub 2021 Jan 30.

    PubMed 33526405
  • Cook D, Lauzier F, Rocha MG, Sayles MJ, Finfer S. Serious adverse events in academic critical care research. CMAJ. 2008 Apr 22;178(9):1181-4. doi: 10.1503/cmaj.071366. No abstract available.

    PubMed 18427095

Questions about this trial

What is this clinical trial studying?

An observational study of Chronic Pain and Chronic Pelvic Pain Syndrome, run by Saint Petersburg State University, Russia at 1 site in Russia.

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 2 inclusion and 4 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: status not confirmed, as of the sponsor's last update on 11 Apr 2023. 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 Russia. 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?

Results are not available in the source record.

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

Contact Gleb Kovalev, MD, PhD (‭+7(911)199-72-75‬, kovalev2207@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

PGI-I (time frame: 60 days). 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 NCT05617118, which also lists 12 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 11 Apr 2023; AzTrials last refreshed its copy on 8 Nov 2026.

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