ClinicalTrials.gg
Not yet recruitingNCT05608733AmpupainUpdated Nov 8, 2022

Continuous Sciatic Nerve Block vs Epidural Analgesia in Lower Limb Amputation for Postoperative Pain

A Phase 3 interventional study of Epidural catheter and Continuous sciatic nerve block in Phantom Limb Pain and Pain, Chronic, sponsored by Universidad de Antioquia. Not yet recruiting at 1 site in Colombia. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-11-08.

Sponsored by Universidad de Antioquia · Phase 3, Interventional, and Prevention

From the registry’s dates

  • Primary completion was expected by May 2025, 1 year 6 months ago, but the record still lists the study as not yet recruiting.
Phase
Phase 3
Study type
Interventional
Enrollment
112
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Controlled clinical trial of two parallel groups, with random assignment 1:1, non-inferiority, blinded for the patient, for who administers the intervention and for who analyzes the data. 112 participants

Read the detailed description

Controlled clinical trial of two parallel groups, with random assignment 1:1, non-inferiority, blinded for the patient, for who administers the intervention and for who analyzes the data. 112 participants Outcomes: Primary: Numeric rating scale (NRS) ranging from 0 (no pain) to 10 (worst imaginable pain) was used for pain assessments daily for 15 days and subsequently monthly until completing 3 months. Co-primary: Assessment of symptomatology related to phantom limb pain daily for 15 days POP and subsequently monthly until completing 3 months.

02

Conditions studied

  • Phantom Limb Pain
  • Pain, Chronic
03

In context

Phantom Limb

163 studies on the registry are indexed under Phantom Limb; 35 are open to participants now.

This study's planned enrollment of 112 is above the median of 30 across 125 interventional studies indexed under Phantom Limb.

Browse Phantom Limb studies →

Lead sponsor

Universidad de Antioquia is the lead sponsor of 80 studies on the registry; 9 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Age over 18 years
  2. Being scheduled for above or below knee amputation or for bone remodeling of lower limb amputees
  3. Acceptance of continuous regional analgesic technique as part of their multimodal analgesia

Exclusion criteria

Exclusion Criteria:

  1. Traumatic cause of amputation
  2. Allergy to local anesthetics
  3. for epidural technique or continuous blocks
  4. Stage 5 kidney disease
  5. Concomitant use of aspirin and clopidogrel
  6. Pregnancy status
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Outcomes assessor)
Enrollment
112 participants (estimated)

Study arms

  • Experimental
    Epidural catheter

    Epidural catheter infusion of bupivacaine 0.1% (4-6 cc/h) at level L3-L4

    Drug: Epidural catheter

  • Active comparator
    Continuous sciatic nerve block

    Continuous sciatic catheter infusion of bupivacaine 0.1% (6-10 cc/h)

    Drug: Continuous sciatic nerve block

Interventions

  • DrugEpidural catheter

    Bony landmarks and the space between the lower lumbar vertebrae are identified. Subsequently, infiltration of the skin and subcutaneous cellular tissue with local anesthetic (Lidocaine 2% without epinephrine) is performed at the site to be punctured. A 17G Tuohy needle is inserted 2-4 cm through the skin, then the mandrel is removed, the low-resistance syringe is connected, and the loss of resistance is checked using the air or liquid technique, depending on the preference of the anesthesiologist. . Appreciating the loss of resistance in the embolus, the mandrel is then withdrawn and the epidural catheter is advanced to leave it an additional 5 cm inside the epidural space.

    Also known as: Epidural Analgesia

  • DrugContinuous sciatic nerve block

    The patient is placed in the prone or supine position with the limb to be blocked flexed at 90°. Using a high-frequency linear transducer and using sterile technique, the popliteal sciatic nerve is identified in an axial axis. A 17G Tuohy needle is inserted plane and medial. Saline solution (5 ml) is applied to open the perineural space. Adequate hydrodissection and donut sign in the nerve are observed..A perineural catheter is then advanced 5 cm beyond the tip of the needle. The catheter is fixed with stitches and a transparent sterile dressing is placed.

    Also known as: Periferical continuous block

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What researchers measure

Primary outcomes

  1. Posoperative Pain

    Pain score according to the daily NRS scale (Numeric Pain Rating Scale), Numeric Pain Rating Scale, for 15 days POP and subsequently monthly until completing 3 months. is scores from 0 to 10, 10 being the worst value.

    Time frame: 3 months

  2. Phantom Limp Pain

    For this qualitative dichotomous outcome, you will ask about symptomatology referring to phantom limb pain for 15 days POP and subsequently monthly until completing 3 months, It will be qualified as positive if it presents any neuropathic symptom.

    Time frame: 3 months

Secondary outcomes

  1. Phantom Limp Pain first Year

    Presence of phantom limb pain on a monthly basis until completing 12 month, The patient will be asked about the appearance of any painful sensation described as stabbing, shooting, electric shock, dull, tight pain and/or cramp in the anatomical site where the amputated limb would be, evaluating the presence or absence of the same (s). This will be questioned every day for 15 POPs days and monthly follow-up will continue via telephone until completing 3 months.

    Time frame: 1 year

  2. Opioid Consumption

    the total consumption in mg of morphine or its equivalent at 12, 24 and 36 h POP will be evaluated.

    Time frame: 36 hours

  3. Incidence of nausea and vomiting POP

    Incidence of nausea and vomiting POP in each group: the appearance of nausea or vomiting at 12, 24 and 36 h POP will be asked.

    Time frame: 36 hours

  4. Incidence of adverse effects

    any appearance of hematoma, hypotension (defined as SBP less than 90 mmHg or a 30% decrease in baseline MAP) or bradycardia (HR less than 60 bpm) is defined.

    Time frame: 1 year

  5. Days of hospital stay

    Days of hospital stay through study completion

    Time frame: during the time of hospitalization, on average 10 days

  6. Mortality

    Mortality in the first Year

    Time frame: 1 year

Other outcomes

  1. Posoperative Satisfaction

    Postoperative satisfaction measured with the EVAN LR scale (evaluation of local anesthetic satisfaction). It consists of a self-reported scale that measures satisfaction in the postoperative period of patients undergoing regional anesthesia in different surgical models (51), with an evaluation of 19 items structured in a global index and five unweighted dimensions, each of which covers some aspects such as Attention (4 items), Information (5 items), Discomfort (4 items), Waiting (2 items) and Pain (4 items). has a score for questions between 20 and 100 points, the lower the score, the lower satisfaction by dimension

    Time frame: 36 hours

07

Study locations

1 site
08

References and documents

Publications

  • Edgley C, Hogg M, De Silva A, Braat S, Bucknill A, Leslie K. Severe acute pain and persistent post-surgical pain in orthopaedic trauma patients: a cohort study. Br J Anaesth. 2019 Sep;123(3):350-359. doi: 10.1016/j.bja.2019.05.030. Epub 2019 Jun 24. PubMed 31248645 ↗
  • De Jong R, Shysh AJ. Development of a Multimodal Analgesia Protocol for Perioperative Acute Pain Management for Lower Limb Amputation. Pain Res Manag. 2018 Jun 3;2018:5237040. doi: 10.1155/2018/5237040. eCollection 2018. PubMed 29973967 ↗
  • Gehling M, Tryba M. [Prophylaxis of phantom pain: is regional analgesia ineffective?]. Schmerz. 2003 Jan;17(1):11-9. doi: 10.1007/s00482-002-0198-2. German. PubMed 12579385 ↗

Individual participant data

Plan to share: No — public bases of data

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Dec 2022; primary completion for May 2025, 29 months later.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 9, 2022
First posted
Nov 8, 2022
StartEst.
Dec 2022
Primary completionEst.
May 2025
CompletionEst.
Jul 2025
Last update
Nov 8, 2022
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Nov 8, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05608733
Lead sponsor
Universidad de Antioquia
Responsible party
Sponsor
First posted
Nov 8, 2022
Start date
Dec 2022 (estimated)
Primary completion
May 2025 (estimated)
Completion
Jul 2025 (estimated)
Last update
Nov 8, 2022

Study contacts

Daniela González, Md
Contact
daniela.gonzalezg@udea.edu.co
3122690961
Laura Lopez Agudelo, Md
Contact
laura.lopez9@udea.edu.co
3148874442
Mario Zamudio, Prof
study director · IPS universitaria

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Mar 2022. You cannot join it, but the record below documents what was studied.

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