Pain medicine

Phase 2b Trial of a Na V 1.8 Inhibitor for Acute Pain

N Engl J MedPublished Randomised controlled trial

Authors' conclusion

LTG-001 led to significantly greater reductions in pain scores than placebo over the course of 48 hours after abdominoplasty.

Study context

Population
Patients with moderate-to-severe pain after abdominoplastyrandomised
Participants
343 patients
Comparison
LTG-001 or hydrocodone bitartrate-acetaminophen vs placebo
Primary endpoint
Time-weighted sum of pain-intensity difference (SPID48; NRS 0–10; higher SPID48 = greater pain reduction)
Follow-up
48-hour treatment period
Methodological detailsphase 2b, double-blind, placebo-controlled
  • Phase 2b
  • Double-blind
  • Placebo-controlled

Primary result

As reported in the abstract

SPID48 · 48 hours

Least-squares mean difference

37.82

P = 0.003

Low dose

Least-squares mean difference

62.08

P < 0.001

High dose

Least-squares mean difference

40.86

Hydrocodone bitartrate-acetaminophen

Low dose

161.05

least-squares mean · 95% CI 142.93–179.16

High dose

185.30

least-squares mean · 95% CI 167.26–203.34

Hydrocodone bitartrate-acetaminophen

164.08

least-squares mean · 95% CI 146.02–182.14

Placebo

123.22

least-squares mean · 95% CI 105.23–141.21

Secondary outcomes

OutcomeHigh dosePlaceboP value
Opioid rescue medication consumedHigh dose vs Placebo11.00 MME18.35 MMEP = 0.01
No receipt of opioid rescue medicationHigh dose vs Placebo52%22%P < 0.001

Opioid rescue medication consumed

Low dose not associated with significantly lower opioid use than placebo

No receipt of opioid rescue medication

Low dose not associated with a significantly higher percentage than placebo

Safety

OutcomeHigh dosePlacebo
Pyrexia7%2%
Presyncope6%1%

Original publication

Phase 2b Trial of a Na V 1.8 Inhibitor for Acute Pain. N Engl J Med. Published 30 July 2026. doi:10.1056/nejmoa2602910

Composed by AI from the published abstract and checked against it. How Briefs are made →

Get them every week

New studies on this topic in My Week and in your Monday e-mail.

We e-mail you a sign-in link and a code. No password, no spam.