Ketamir-2

Rethinking NMDA Modulation with Selectivity

Ketamir-2 is an oral NMDA receptor modulator designed to selectively engage a validated pain pathway while avoiding the dissociative and psychotomimetic effects associated with traditional NMDA receptor blockers.

The Treatment Gap

The Problem With Current Approaches

Available treatments are used off-label for CIPN and generally provide limited relief. No therapy is FDA-approved specifically for CIPN.

CIPN can force changes to cancer treatment and significantly impact a patient’s quality of life.

Solution

Selectivity Is the Insight

1

Ketamine validates

NMDA modulation in pain.

2

Its dissociative effects and abuse liability

can limit chronic use.

3

Ketamir-2 was designed

to engage the same receptor more selectively, with the goal of preserving analgesic activity while avoiding ketamine-like CNS liabilities.

Mechanism of Action

Selective NMDA Modulation at the PCP Site

Ketamir-2 is an oral, reduced-affinity NMDA receptor blocker designed to selectively engage the PCP site, with no meaningful binding at AMPA, kainate, sigma, glycine, or glutamate receptors.

Ketamir-2

Phase 1 Completed

Phase 1 Demonstrated Favorable Safety, Tolerability & Pharmacokinetics

Robust Study Design

57 healthy volunteers · 7 cohorts · 50–600 mg

1

Favorable Safety Profile

No SAEs · No Grade 3+ events · No discontinuations due to adverse events

2

Predictable Pharmacokinetics

Exposure increased with dose · No meaningful accumulation through Day 5

3

Negligible Dissociative Effects

Absent or negligible on validated assessments

4

Clinical Development

Phase 2a Study
Designed For CIPN

A randomized, double-blind, placebo-controlled crossover study designed to evaluate oral Ketamir-2 in patients with moderate-to-severe persistent CIPN.

Target

PATIENTS

Moderate-to-severe persistent CIPN

300 & 600 mg

ORAL KETAMIR-2

vs. Placebo

RANDOMIZED · DOUBLE-BLIND · PLACEBO-CONTROLLED · CROSSOVER

Publications

Publications and Posters

Ketamir-2
Publications
September 28, 2026

An Oral Selective NMDA Modulator For Chemotherapy-Induced Peripheral Neuropathy—Phase 1 Safety, Pharmacokinetics, And Clinical Development Update

Ketamir-2
Posters
September 28, 2026

A Novel Oral Ketamine Analogue for Chemotherapy-Induced Peripheral Neuropathy

Ketamir-2
Publications
April 17, 2026

A new molecular entity and novel ketamine analog

Ketamir-2
Publications
September 02, 2025

Oral administration of Ketamir-2, a novel ketamine analog, attenuates neuropathic pain in rodent models via selective NMDA antagonism

Explore Our Pipeline

Advancing Better Therapies, Together

Explore MIRA’s broader pipeline across pain and obesity.