Evidence map›Paper›PMID 42087465›Full record

Observational studyJournal of oral rehabilitation2026

Effectiveness and Tolerability of Topical Amitriptyline 10% Plus Lidocaine 2% Gel in Adults With Post-Traumatic Trigeminal Neuropathic Pain: A Real-World Evidence Study.

Ashley Lebel, Imen Stambouli, Yves Boucher

Abstract readObservational Study
In one paragraph

Observational study in Journal of oral rehabilitation, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Ashley LebelDepartment of Orofacial Pain, Institute of Dental Surgery, Pitié-Salpêtrière Hospital (AP-HP), Paris, France.ORCID https://orcid.org/0000-0001-7869-3650
Imen StambouliUnit of Orofacial Pain and Temporomandibular Dysfunction, University Dental Clinic, Monastir, Tunisia.
Yves BoucherDepartment of Orofacial Pain, Institute of Dental Surgery, Pitié-Salpêtrière Hospital (AP-HP), Paris, France.ORCID https://orcid.org/0000-0001-6182-0860

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPost-traumatic trigeminal neuropathic pain (PTNP) is a debilitating orofacial pain disorder most commonly caused by trigeminal nerve injury after dental procedures or facial trauma. Available systemic therapies have modest and inconsistent efficacy, with substantial tolerability concerns limiting adherence.

objectivesTo evaluate the real-world effectiveness and tolerability of a compounded intraoral mucoadhesive gel containing amitriptyline 10% plus lidocaine 2% in adults with PTNP.

methodsThis retrospective real-world evidence study included adults with PTNP meeting ICHD-3/ICOP criteria who were treated at a tertiary orofacial pain clinic from May 1, 2023, to April 30, 2024. The primary outcome was the within-patient change in pain intensity on a 0-10 numerical rating scale (NRS) from baseline to week 8. Secondary outcomes included responder rates (≥ 50% and ≥ 30% pain reduction), patient global impression of improvement (PGI-I) and adverse events (AEs).

resultsOf 94 patients identified, 40 were included in the complete-case initiator cohort. Mean pain intensity decreased from 6.3 ± 1.7 at baseline to 3.0 ± 2.7 at week 8, corresponding to a mean within-patient reduction of 3.30 points (95% CI, 2.51-4.09; p < 0.001). Twenty-two of 40 patients (55%; 95% CI, 40-69) achieved a ≥ 50% reduction in pain intensity, and 27 of 40 (68%; 95% CI, 52-80) achieved a ≥ 30% pain reduction. Seventy-five percent (30/40, 95% CI, 60-86) reported overall improvement on the PGI-I. Mild treatment-related AEs occurred in five of 40 patients (12%); no serious AEs or treatment discontinuations were reported.

conclusionIn this retrospective real-world study, topical amitriptyline-lidocaine mucoadhesive gel was associated with statistically significant and clinically meaningful pain improvement in adults with PTNP, together with favourable tolerability. These findings support targeted mucosal delivery as a promising local therapeutic option and potential medication-sparing strategy, particularly when systemic therapies are ineffective or poorly tolerated. Randomized controlled trials are now needed to confirm efficacy and clarify the role of topical amitriptyline in PTNP treatment pathways and routine clinical care.

Indexed as

AmitriptylineAnalgesics, Non-NarcoticAnesthetics, LocalLidocaineTrigeminal Nerve DiseasesAdministration, TopicalAdultAgedDrug Therapy, CombinationFemaleGelsHumansMaleMiddle AgedPain ManagementPain MeasurementAmitriptylineAnalgesics, Non-NarcoticAnesthetics, LocalGelsLidocainedental implantsendodonticspainful post‐traumatic trigeminal neuropathytooth extractiontopical analgesictrigeminal nerve injuriestrigeminal neuralgia

Identifiers

PMID42087465
PMCPMC13358445

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.