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RP-008 in Combination With Daily Oral Varenicline for the Treatment of Trigeminal Neuralgia (RELIEF)

4. juni 2026 oppdatert av: Kriya Therapeutics, Inc.

A Phase 1/2, Multicenter, Open-Label Study to Evaluate Safety, Tolerability, and PRELIminary EFficacy of Percutaneous Injection of RP-008 Followed by Daily Oral Varenicline in Patients With Trigeminal Neuralgia (The RELIEF Study)

The goal of this study is to evaluate if KRIYA-748 (RP-008) is safe, tolerable, and preliminary effective in treating trigeminal neuralgia (TN) when used in combination with varenicline tartrate. The study will also assess what doses of RP-008 are safe and tolerable for participants and how the severity of participants' TN pain and frequency of facial pain attacks are affected.

Studieoversikt

Status

Rekruttering

Forhold

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Antatt)

24

Fase

  • Fase 2
  • Fase 1

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studiesteder

  • Canada
      • Sherbrooke, Canada
        • Rekruttering
        • Kriya Clinical Study Site
        • Ta kontakt med:

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

Beskrivelse

Inclusion Criteria:

  • Participant is capable of providing signed informed consent.
  • Participant must be between 18 to 80 years of age (inclusive), at the time of signing the informed consent.
  • Confirmed diagnosis of classical or idiopathic TN according to the criteria of the International Classification of Headache Disorders-3rd edition (ICHD-3, 2018).
  • The diagnosis of TN established at least 6 months prior to Screening.
  • Participant has purely unilateral pain attacks limited primarily to the maxillary (V2) and/or mandibular (V3) division of the trigeminal nerve.
  • Participant has failed at least 1 standard of care anti-epileptic agent (e.g., carbamazepine, oxcarbazepine, pregabalin, gabapentin, phenytoin, lamotrigine). Failure to a prior anti-epileptic medication is defined as insufficient pain relief despite use of a therapeutic dose for an adequate duration of time or being unsuitable due to contraindications or intolerance to side effects.
  • Participant is on stable dosage of any TN anti-epileptic agent(s) for a minimum of 6 weeks prior to Screening.

Exclusion Criteria:

  • Participant has bilateral TN pain attacks.
  • Participants with secondary TN, defined by ICHD-3 as TN caused by an underlying disease (e.g., tumor in the cerebellopontine angle, arteriovenous malformation, or multiple sclerosis).
  • Participants with facial pain not meeting the ICHD-3 diagnostic criteria for either classical or idiopathic TN, including: trigeminal autonomic cephalalgias, cluster headache, hemicrania continua, paroxysmal hemicrania, short-lasting unilateral neuralgiform headache attacks with conjunctival injection and tearing (SUNCT) and short-lasting unilateral neuralgiform headache attacks with cranial autonomic symptoms (SUNA).
  • Participants who had no change in pain after taking sodium channel blockers despite the use of a therapeutic dose for an adequate duration of time.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: N/A
  • Intervensjonsmodell: Sekvensiell tildeling
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Participants receiving RP-008
Participants will receive a single dose of RP-008 on Day 1 at varying dose levels according to the dose escalation study design. In addition, varenicline tartrate and oral corticosteroid (equivalent to prednisone or prednisolone) will be administered during the pre- and post-treatment follow-up periods.
Genetisk: RP-008
RP-008 will be administered as a single percutaneous injection to the trigeminal ganglion.
Andre navn:
  • KRIYA-748
Legemiddel: Varenicline tartrate
Varenicline tartrate will be administered as a daily oral tablet.
Andre navn:
  • Champix

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Incidence and severity of adverse events, abnormal clinical laboratory values, abnormal physical examinations, abnormal vital signs, abnormal electrocardiograms (ECGs), and suicidal ideation
Tidsramme: 12 months
Safety of RP-008 with varenicline
12 months

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Number of responders, defined as participants with reduced TN pain score, attacks, and severity, to RP-008 with varenicline treatment
Tidsramme: 3 and 12 months
Efficacy of RP-008 with varenicline
3 and 12 months
Change in pain as assessed by the 11-point Numerical Pain Rating Scale (NRS), where 0 corresponds to "no pain" and 10 corresponds to "pain as bad as you can imagine"
Tidsramme: 3 and 12 months
Efficacy of RP-008 with varenicline
3 and 12 months
Change in pain as assessed by the Brief Pain Inventory (BPI) Pain Interference (PI) sub-scale, where 0 corresponds to pain having no interference with daily activities and 10 corresponds to pain interfering completely with daily activities
Tidsramme: 3 and 12 months
Efficacy of RP-008 with varenicline
3 and 12 months
Change from baseline in Pittsburgh Sleep Quality Index (PSQI), where scores range from 0-21 and higher score indicates worse sleep quality
Tidsramme: 3 and 12 months
Efficacy of RP-008 with varenicline
3 and 12 months
Change from baseline in Hospital Anxiety and Depression Scale (HADS), where sub-scale scores range from 0-21 and higher score indicates greater symptom severity
Tidsramme: 3 and 12 months
Efficacy of RP-008 with varenicline
3 and 12 months
Change from baseline in Work Productivity and Activity Impairment (WPAI): Neuropathic Pain v2.0, where scores are expressed as 0-100% and higher percentage indicates greater impairment
Tidsramme: 3 and 12 months
Efficacy of RP-008 with varenicline
3 and 12 months
Change from baseline in Penn Facial Pain Scale Revised (Penn-FPS-R), where scores range from 0-120 and higher score indicates greater pain-related disability
Tidsramme: 3 and 12 months
Efficacy of RP-008 with varenicline
3 and 12 months
Change from baseline in 5-level EuroQual-5D (EQ-5D-5L), where scores range from 0-100 and higher scores indicate better health status
Tidsramme: 3 and 12 months
Efficacy of RP-008 with varenicline
3 and 12 months
Change from baseline in Patient Global Assessment of TN (PGA-TN), where scores range from 1 to 5 and higher score indicates higher severity of symptoms and inability to carry out normal activities
Tidsramme: 3 and 12 months
Efficacy of RP-008 with varenicline
3 and 12 months
Change from baseline in Modified Barrow Neurological Institute Pain Intensity Score (BNI), where scores range from I to V and higher score indicates higher pain and need for medication
Tidsramme: 3 and 12 months
Efficacy of RP-008 with varenicline
3 and 12 months
Improvement in Patient Global Impression of Change (PGIC) and Clinician Global Impression of Change (CGIC) scale, where scores range from 1 to 7 and higher score indicates worsening of status
Tidsramme: 3 and 12 months
Efficacy of RP-008 with varenicline
3 and 12 months
AAV5 anti-capsid and anti-transgene antibody titer
Tidsramme: 12 months
Immune response to RP-008
12 months
Vector shedding profile of RP-008
Tidsramme: 12 months
Vector shedding in plasma, urine, tears, saliva, and mucus
12 months

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Kriya Therapeutics, Inc.

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

1. august 2026

Primær fullføring (Antatt)

1. februar 2029

Studiet fullført (Antatt)

1. februar 2029

Datoer for studieregistrering

Først innsendt

17. april 2026

Først innsendt som oppfylte QC-kriteriene

12. mai 2026

Først lagt ut (Faktiske)

19. mai 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

8. juni 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

4. juni 2026

Sist bekreftet

1. juni 2026

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • KT74863-101

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Ja

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

produkt produsert i og eksportert fra USA

Ja

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