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Clinical Trial Details — Status: Enrolling by invitation

Administrative data

NCT number NCT04312685
Other study ID # T-001
Secondary ID
Status Enrolling by invitation
Phase N/A
First received
Last updated
Start date July 27, 2020
Est. completion date November 30, 2023

Study information

Verified date July 2021
Source Bux, Anjum, MD
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This study is designed to explore if the valve-gated pump requires less drug to manage subject pain than the prior standard peristaltic pump in the same subject. The newly implanted valve-gated pump will be programmed to deliver a minimum dose reduction of 20% of the same medication that was delivered in the peristaltic pump prior to explant. The drug therapy will be evaluated and pain scores will be evaluated over time (3 refill cycles prospectively for the valve-gated pump and 6 months retrospectively for the peristaltic pump).


Description:

This study will employ a single-blind where study participants will not be told about the dose reduction of at least 20% when the valve-gated pump is implanted. A study participant has a significant potential to bias when informed they will get less drug with the new pump than they were receiving in the old pump this could subjectively affect pain scores as well. After valve-gated pump implant and dose reduction, the appropriate pain therapy will be provided to adequately address pain management in the opinion of the study investigator using standard of care processes and VAS scores. Once subjects have been implanted with the valve-gated pump they will be started on a minimum 20% dose reduction (same medications and concentrations prior to explant). If at any time during the subjects' treatment it is determined by the investigator that the subjects' treatment dose needs to be increased, the dose can be increased in increments not to exceed 5% (no change to concentration) based on VAS scores at current and last visits.


Recruitment information / eligibility

Status Enrolling by invitation
Enrollment 120
Est. completion date November 30, 2023
Est. primary completion date April 1, 2023
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 21 Years and older
Eligibility Inclusion Criteria: Subjects meeting all of the following criteria will be eligible for enrollment in the study: - 21 years of age or older - Provide written informed consent for study participation - Active existing peristaltic intrathecal drug delivery system (IDDS) - Stable IDDS dosage and concentration for at least 6 weeks prior to valve-gated pump implant - Minimum of 3 months of information from the following: - VAS, ODI, Global Pain Scale - Pump refill printouts (dosage and concentration) - Other Interventions for pain (injections, nerve blocks, etc.) - Estimated Replacement Indicator (ERI) printout required showing < 12 months of battery life - Catheter Access Procedure (CAP) study performed to document patency of catheter, if not replacing - Diagnosis of nonmalignant, chronic intractable pain as documented in medical history - Appropriate candidate for surgery - Able to comply with study requirements including visits and assessments, in the opinion of the investigator Exclusion Criteria: Subjects meeting any of the following criteria will be excluded from participating in the study: - Any contraindications listed in the Prometra labeling - Significant pain disorder not intended to be treated with the test device or comparator - Terminally ill, malignant cancer diagnosis and/or has a life expectancy of less than 12 months in the opinion of the investigator - Pregnant/lactating woman or is of child-bearing potential and not utilizing effective birth control. - Systemic or local infection (contraindicated for pump implantation) - History/evidence of an active disruptive psychiatric disorder or other known condition with potential to impact compliance with study visits and assessments, in the investigator's opinion

Study Design


Intervention

Device:
Prometra II Programmable Pump system - Flowonix Medical
This valve gated Prometra II Programmable Pump system will be replacing prior peristaltic Synchromed II pump

Locations

Country Name City State
United States Consultants in Pain Management Chattanooga Tennessee
United States Pain and Spine Specialists Idaho Falls Idaho
United States Bux Pain Management Lexington Kentucky
United States Crimson Pain Management Overland Park Kansas
United States The Spine Center at Ridgeway Rochester New York
United States Aust Interventional Pain Slidell Louisiana
United States Michigan Head & Spine Institute Southfield Michigan
United States National Spine & Pain Center Turnersville New Jersey

Sponsors (2)

Lead Sponsor Collaborator
Bux, Anjum, MD Flowonix Medical

Country where clinical trial is conducted

United States, 

References & Publications (6)

Deer TR, Smith HS, Cousins M, Doleys DM, Levy RM, Rathmell JP, Staats PS, Wallace M, Webster LR. Consensus guidelines for the selection and implantation of patients with noncancer pain for intrathecal drug delivery. Pain Physician. 2010 May-Jun;13(3):E175-213. — View Citation

Hayek SM, Deer TR, Pope JE, Panchal SJ, Patel VB. Intrathecal therapy for cancer and non-cancer pain. Pain Physician. 2011 May-Jun;14(3):219-48. Review. — View Citation

Hayek SM, Veizi E, Hanes M. Intrathecal Hydromorphone and Bupivacaine Combination Therapy for Post-Laminectomy Syndrome Optimized with Patient-Activated Bolus Device. Pain Med. 2016 Mar;17(3):561-571. Epub 2015 Dec 14. — View Citation

Knight KH, Brand FM, Mchaourab AS, Veneziano G. Implantable intrathecal pumps for chronic pain: highlights and updates. Croat Med J. 2007 Feb;48(1):22-34. Review. — View Citation

Konrad PE, Huffman JM, Stearns LM, Plunkett RJ, Grigsby EJ, Stromberg EK, Roediger MP, Wells MD, Weaver TW. Intrathecal Drug Delivery Systems (IDDS): The Implantable Systems Performance Registry (ISPR). Neuromodulation. 2016 Dec;19(8):848-856. doi: 10.1111/ner.12524. Epub 2016 Oct 12. — View Citation

Tangen KM, Leval R, Mehta AI, Linninger AA. Computational and In Vitro Experimental Investigation of Intrathecal Drug Distribution: Parametric Study of the Effect of Injection Volume, Cerebrospinal Fluid Pulsatility, and Drug Uptake. Anesth Analg. 2017 May;124(5):1686-1696. doi: 10.1213/ANE.0000000000002011. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Reduced pain medication through Prometra Implantable Pump System Total consumption of pain medications both oral and intrathecal is recorded to show changes. 12 months
Secondary Visual Analog Scale for Pain changes Visual Analog Scale (VAS) for Pain is used assess pain throughout the study which shows No pain at low end to extreme Pain at high end. 12 months
Secondary Owestry Disability Index changes Owestry Disability Index (ODI) are used to assess changes in lifestyle scores throughout the study which shows patient's level of function in daily living 12 months
Secondary Global Pain Scale Assessments Global Pain Scale Assessments will be used to assess changes in scores throughout the study 12 months
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