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Study Designed to Evaluate the Safety, Tolerability, and PK of RAP-219 Formulated as an Long Acting Injectable.

2. november 2026 oppdatert av: Rapport Therapeutics Inc.

A Phase 1, Double-blind, Placebo-controlled, Single- and Multiple-dose Study of the Safety, Tolerability, and Pharmacokinetics of RAP-219 Administered as a Long-acting Injectable to Healthy Participants

This is a Phase 1, double-blind, placebo-controlled, 5-cohort study evaluating the pharmacokinetics (PK), safety, and tolerability of RAP-219-LAI in healthy participants aged 18 to 65 years. Assessment of up to four single-dose cohorts will characterize the PK profile of up to four ascending dose levels and evaluate dose proportionality. One multiple-dose cohort will characterize the accumulation profile of RAP-219-LAI.

The study includes a Screening Period of up to 28 days (Day -28 to Day -1) for participants in all cohorts. Cohorts 1, 2, 3, and 4 will include admission on Day -1, a single dosing day (Day 1), a 28-day inpatient and outpatient Treatment Period (Day 1 to Day 28), and a 28-day Follow-up Period (Day 29 to Day 56). Cohort 5 will include admission on Day -1 and Day 28, two dosing days (Day 1 and Day 29), a 56-day inpatient and outpatient Treatment Period (Day 1 to Day 56), and a 28-day Follow-up Period (Day 57 to Day 84).

Up to 60 participants are planned to be enrolled in this study, with 12 participants per cohort randomized in a 3:1 ratio to receive RAP-219-LAI or placebo.

Studieoversikt

Status

Rekruttering

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

Participants will be randomized to receive a single dose of RAP-219-long acting injectable (LAI) (RAP-219-LAI) nanosuspension or placebo (Cohort 1, Cohort 2, Cohort 3, and Cohort 4), or 2 doses of RAP-219-LAI or placebo (Cohort 5) 28 days apart. A starting dose of 2.5 mg for Cohort 1 was chosen based on reviews of the preclinical data, clinical trials data and PK modelling and simulation. A sentinel group of 2 participants will be dosed and monitored for 24 hours. The rest of that cohort (8) will be dosed if there are no safety concerns noted with the sentinel group. A dose escalation committee (DEC) will review the safety and available PK data for cohort 1 and make a determination on the dose for Cohort 2. The DEC will review the data for subsequent cohorts and advise on does as well as study progression based on the emerging and cumulative safety and PK data.

Studietype

Intervensjonell

Registrering (Antatt)

60

Fase

  • Fase 1

Kontakter og plasseringer

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

Studiekontakt

Studiesteder

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

18 år til 65 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Ja

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  1. Able and willing to provide written informed consent to participate in the study and comply with all aspects of the protocol
  2. Age 18 to 65 years, inclusive, at Screening
  3. Medically healthy, with no current medical or psychiatric conditions, or those that the participant has been diagnosed with or received treatment for in the past 1 year, or clinically significant abnormalities, as determined by the PI or delegate based on the participant's medical history, physical examination, vital signs, ECG, and laboratory evaluations

Exclusion Criteria:

  1. Pregnant or breastfeeding, or intending to become pregnant during the course of the study
  2. Skin conditions affecting abdominal injection site or any condition or characteristic that may prevent assessment of injection site reactions (ISRs)
  3. Inadequate venous access or unsuitable veins for venipuncture
  4. Donated blood or experienced significant blood loss (greater than or equals to 450 millilitres) within 12 weeks, donated bone marrow or peripheral stem cells within 90 days, or donated plasma within 4 weeks prior to Day 1.
  5. History of malignancy, with the exception of non-melanoma skin cancer or cancer curatively treated greater than or equals to 5 years prior to Screening without evidence of recurrence
  6. Recent history or current substance abuse
  7. Consumption of liquids or foods containing Seville oranges, grapefruit, lime, pomegranate, or star fruit from 7 days prior to Day 1, or poppy seed from 3 days prior to Day 1 (all cohorts)
  8. Unable or unwilling to refrain from strenuous exercise from 3 days prior to Day 1 and during the inpatient periods through the end of the study
  9. History of any illness, any medical or psychiatric condition, or laboratory abnormality that, in the opinion of the PI or delegate, might prevent the participant from completing the study, pose a risk to the participant, or confound the results of the study
  10. Any non-negative serology results for hepatitis B surface antigen, hepatitis C antibody, or HIV antigen and antibody.
  11. Any surgical procedure within 3 months prior to Screening from which a full recovery was not made and/or with sequelae that may impact study procedures/outcomes and/or safety, as judged by the PI or delegate

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: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Dobbelt

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Kohort 1

Route of Administration: Subcutaneous injection

Eksperimentell: Kohort 2

Route of Administration: Subcutaneous injection

Eksperimentell: Kohort 3

Route of Administration: Subcutaneous injection

Eksperimentell: Kohort 4

Route of Administration: Subcutaneous injection

Eksperimentell: Kohort 5

Route of Administration: Subcutaneous injection

Hva måler studien?

Primære resultatmål

Resultatmål
Tidsramme
Maximum Plasma Concentration (Cmax)
Tidsramme: Up to 84 days
Up to 84 days

Sekundære resultatmål

Resultatmål
Tidsramme
Safety: Adverse Events (AEs)
Tidsramme: Up to 112 days
Up to 112 days

Samarbeidspartnere og etterforskere

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

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. november 2026

Primær fullføring (Antatt)

1. juni 2027

Studiet fullført (Antatt)

5. oktober 2027

Datoer for studieregistrering

Først innsendt

16. oktober 2026

Først innsendt som oppfylte QC-kriteriene

2. november 2026

Først lagt ut (Faktiske)

6. november 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

6. november 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

2. november 2026

Sist bekreftet

1. november 2026

Mer informasjon

Begreper knyttet til denne studien

Andre studie-ID-numre

  • RAP-219-LAI-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

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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