Exploring Long-term Pain Relief with 5% Dextrose Added to Local Anesthetic
A Prospective, Open-label Self-controlled Trial to Assess Long-term Changes in Pain and Function with Addition of 5% Dextrose to Local Anesthetic Solutions - the PALPADE Study
1 other identifier
interventional
70
1 country
1
Brief Summary
The goal of this single-arm, non-randomized, open-label trial is to determine whether adding a 5% dextrose solution to a local anesthetic can improve outcomes in patients with chronic non-cancer pain. The main question we aim to answer is whether adding a low-concentration (5%) dextrose solution to local anesthetics increases the effectiveness of trigger point injections and/or peripheral nerve blockade in the treatment of chronic non-cancer pain. Researchers will compare the outcomes of adding 5% dextrose to the usual local anesthetic solution with the outcomes of using the local anesthetic alone to determine if injection therapy is more effective when dextrose is added. Participants will:
- Attend their scheduled injection treatments every two (2) weeks for a total of six (6) visits.
- Complete a demographic form at the first visit, and the usual pre-visit questionnaires (the Waiting Room Form and the Brief Pain Inventory (BPI)) at every visit, as well as four (4) weeks after the sixth visit (approximately 16 weeks from the study start date). They will also need to complete two short questionnaires-the Patient Health Questionnaire (PHQ-9) and the Patient Global Impression of Change (PGIC)-at the specified intervals.
- Complete all forms, which will be securely emailed to them.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Sep 2024
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
September 3, 2024
CompletedFirst Submitted
Initial submission to the registry
September 24, 2024
CompletedFirst Posted
Study publicly available on registry
September 27, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 30, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
February 28, 2025
CompletedDecember 3, 2024
September 1, 2024
5 months
September 24, 2024
November 27, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (4)
Brief Pain Inventory form (BPI)
The BPI allows patients to rate the severity of their pain and the degree to which their pain interferes with common dimensions of feeling and function.
BPI is administered at the following intervals: first visit (Baseline/week 1), the third visit (Week 5), the sixth and final visit (Week 11), and again four weeks after the end of the intervention period (Week 15).
Patient Health Questionnaire (PHQ-9)
The PHQ-9 is a depression module, which scores each of the 9 DSM-IV criteria as "0" (not at all) to "3" (nearly every day).
The PHQ-9 is administered at the following intervals: At the first visit (Baseline/Week 1), the third visit (Week 5), the sixth and final visit (Week 11), and again four weeks after the end of the intervention period (Week 15).
Visual Analogue Scale (VAS)
VAS consists of a 10 cm horizontal line with the endpoints defining extreme limits such as no pain at all and pain as bad as possible.
The VAS is administered at the following intervals: At the first visit (Baseline/Week 1), the third visit (Week 5), the sixth and final visit (Week 11), and again four weeks after the end of the intervention period (Week 15).
Patient's Global Impression of the Change (PGIC)
The PGIC is a short questionnaire that provides a responsive and interpretable assessment of how a participant evaluates changes in their status.
The PGIC is administered at the following intervals: At the end of the intervention (Week 11) and four weeks after the end of the intervention period (Week 15).
Study Arms (1)
Addition of 1 mL of 50% dextrose solution to the usual local anesthetic solution of choice
EXPERIMENTALThe physician will add 1 mL of 50% dextrose solution (Pfizer Canada ULS, Kirkland, Québec) to the usual local anesthetic solution of choice for each patient. Solutions contain either 0.3% Ropivacaine, 1% Procaine, 0.5% Lidocaine, 0.25% Bupivacaine, or a mixture of 0.25% Bupivacaine and 2% Lidocaine in a 9:1 ratio.
Interventions
The principal investigator will use a palpation-guided approach to select the injection sites. Injection solutions will be prepared by the assisting nurse. For each patient, 1 mL of a 50% dextrose solution (Pfizer Canada ULS, Kirkland, Québec) will be added to the usual local anesthetic solution of choice. Solutions contain either 0.3% Ropivacaine, 1% Procaine, 0.5% Lidocaine, 0.25% Bupivacaine, or a mixture of 0.25% Bupivacaine and 2% Lidocaine in a 9:1 ratio.
Eligibility Criteria
You may qualify if:
- Men and women ≥ 18 years old, inclusive.
- A primary diagnosis of chronic non-cancer pain as determined by their physician.
- Present chronic pain symptoms of at least 3 months in duration.
- Currently receiving injection therapy every 1-3 weeks for at least 6 months.
- English proficiency
You may not qualify if:
- Age less than 18 years
- Scar or infection at the blockade puncture site
- Pregnancy
- Unstable neurologic or psychiatric diagnosis, including schizophrenia, bipolar disorder, substance use disorder, depression or anxiety, dementia or neurodegenerative disorder
- Serious acute life stressor, clinical illness, or organ disease within the past three months
- Serious or significant traumatic injury, surgical or dental procedure within the past three months
- Lack of English proficiency or unable to complete patient forms
- Denial or withdrawal of consent, as per the informed consent form (ICF).
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Seekers Centre
Ottawa, Ontario, K1Z 5Z9, Canada
Related Publications (7)
Patel KV, Amtmann D, Jensen MP, Smith SM, Veasley C, Turk DC. Clinical outcome assessment in clinical trials of chronic pain treatments. Pain Rep. 2021 Jan 21;6(1):e784. doi: 10.1097/PR9.0000000000000784. eCollection 2021 Jan-Feb.
PMID: 33521482BACKGROUNDBae G, Kim S, Lee S, Lee WY, Lim Y. Prolotherapy for the patients with chronic musculoskeletal pain: systematic review and meta-analysis. Anesth Pain Med (Seoul). 2021 Jan;16(1):81-95. doi: 10.17085/apm.20078. Epub 2020 Dec 16.
PMID: 33348947BACKGROUNDHauser RA, Lackner JB, Steilen-Matias D, Harris DK. A Systematic Review of Dextrose Prolotherapy for Chronic Musculoskeletal Pain. Clin Med Insights Arthritis Musculoskelet Disord. 2016 Jul 7;9:139-59. doi: 10.4137/CMAMD.S39160. eCollection 2016.
PMID: 27429562BACKGROUNDWee TC, Neo EJR, Tan YL. Dextrose prolotherapy in knee osteoarthritis: A systematic review and meta-analysis. J Clin Orthop Trauma. 2021 May 20;19:108-117. doi: 10.1016/j.jcot.2021.05.015. eCollection 2021 Aug.
PMID: 34046305BACKGROUNDRabago D, Slattengren A, Zgierska A. Prolotherapy in primary care practice. Prim Care. 2010 Mar;37(1):65-80. doi: 10.1016/j.pop.2009.09.013.
PMID: 20188998BACKGROUNDHung CY, Hsiao MY, Chang KV, Han DS, Wang TG. Comparative effectiveness of dextrose prolotherapy versus control injections and exercise in the management of osteoarthritis pain: a systematic review and meta-analysis. J Pain Res. 2016 Oct 18;9:847-857. doi: 10.2147/JPR.S118669. eCollection 2016.
PMID: 27799816BACKGROUNDGoswami A. Prolotherapy. J Pain Palliat Care Pharmacother. 2012 Dec;26(4):376-8. doi: 10.3109/15360288.2012.734900.
PMID: 23216178BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Physician/Clinic director/ Principal investigator
Study Record Dates
First Submitted
September 24, 2024
First Posted
September 27, 2024
Study Start
September 3, 2024
Primary Completion
January 30, 2025
Study Completion
February 28, 2025
Last Updated
December 3, 2024
Record last verified: 2024-09
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP
- Time Frame
- The IPD will be made available to approved researchers 12 months after the publication of the main study results. This period allows sufficient time for meticulous data preparation for external use.
- Access Criteria
- Access to IPD will be granted to researchers who submit scientifically valid proposals that align with ethical guidelines. A review committee will evaluate proposals based on their objectives, methodology, and compliance with data protection standards. Successful applicants will be required to sign a data use agreement outlining secure data handling and confidentiality requirements. Instructions for secure data access, including anonymization protocols and secure transfer methods, will be provided to approved researchers.
Data will be collected and stored using tablet-based case report forms on the PIPHA-compliant OCEAN platform (Well Health Technologies, Canada). All data will be anonymized, with direct identifiers removed and replaced by a unique study ID code. The study protocol, anonymized participant outcome data, and related data analysis will be shared.