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Effekt och säkerhet av IPG11406 vid måttligt till svårt aktiv ulcerös kolit (fas 2)

6 november 2026 uppdaterad av: Nanjing Immunophage Biotech Co., Ltd

En fas 2, multicenter, randomiserad, dubbelblind, placebokontrollerad, dosvarierande studie för att utvärdera effektiviteten och säkerheten hos IPG11406-tabletter hos vuxna patienter med måttligt till svårt aktiv ulcerös kolit

This is a Phase 2, multicenter, randomized, double-blind, placebo-controlled study to evaluate the efficacy, safety, and pharmacokinetics of IPG11406, an investigational oral drug, in adult patients with moderately to severely active ulcerative colitis (UC).

UC is a chronic inflammatory bowel disease that causes long-term inflammation and ulcers in the colon, leading to symptoms like frequent diarrhea, rectal bleeding, abdominal pain, and urgent bowel movements. IPG11406 works by targeting the GPR183 receptor, which helps reduce immune cell migration to the inflamed colon, potentially easing UC symptoms and promoting mucosal healing.

In this study, 144 eligible adult patients will be randomly assigned (1:1:1:1) to receive one of three doses of IPG11406 (10 mg, 20 mg, or 40 mg, taken twice daily by mouth) or a matching placebo for 12 weeks. Neither the patients nor their study doctors will know who is receiving the active drug or placebo to ensure unbiased results.

The main goal of the study is to see how well IPG11406 works to achieve clinical remission (reduced or no UC symptoms) at 12 weeks, measured by the modified Mayo Score. Additional goals include evaluating other efficacy measures (such as clinical response, endoscopic remission, and histological improvement), long-term safety, how the drug is absorbed and processed in the body (pharmacokinetics), and changes in inflammatory biomarkers like fecal calprotectin and hsCRP.

All participants will undergo regular study visits for safety assessments, including physical exams, laboratory tests, colonoscopies, and monitoring for any side effects throughout the 12-week treatment period and a 2-week follow-up. This study will help determine the optimal dose of IPG11406 for future larger clinical trials in UC patients.

Studieöversikt

Studietyp

Interventionell

Inskrivning (Beräknad)

144

Fas

  • Fas 2

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studiekontakt

Studieorter

      • Beijing, Kina
        • Rekrytering
        • Peking Union Medical College Hospital Chinese Academy of Medical Sciences
        • Kontakt:

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år till 70 år (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Beskrivning

Inclusion Criteria:1.Males and females aged ≥18 and ≤70 years at randomization 2.Diagnosis of moderately to severely active UC with mMS 5-9, mMES 2-3, SF ≥1, RB ≥1 3.Documented UC diagnosis for ≥3 months prior to screening 4.Inadequate response, loss of response, or intolerance to conventional or advanced therapies 5.Stable background UC therapy for specified intervals before baseline 6.Willingness to use effective contraception throughout the study and for 1 month after last dose 7.Ability to comply with study visits and procedures 8.Signed informed consent

Exclusion Criteria:

  1. Diagnosis of indeterminate colitis or Crohn's disease
  2. History of bowel surgery for UC or likely requiring surgery during study
  3. Ulcerative proctitis only (distal ≤15 cm)
  4. History of colonic dysplasia or adenomatous polyps not completely removed
  5. Active intestinal infection (including C. difficile) within 30 days
  6. HBV, HCV, HIV, or untreated latent/active TB
  7. Significant cardiovascular disease or uncontrolled hypertension
  8. Clinically significant abnormal ECG or QTcF prolongation
  9. Treatment with prohibited medications within specified windows
  10. Abnormal laboratory values at screening
  11. History of malignancy (except non-melanoma skin cancer or in situ cervical cancer)
  12. Pregnancy, breastfeeding, or plan to become pregnant
  13. Alcohol or drug abuse within 6 months
  14. Prior participation in an IPG11406 study
  15. Other conditions deemed inappropriate by the investigator

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Fyrdubbla

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: IPG11406 10 mg BID

Participants in this arm receive IPG11406 10 mg oral tablets twice daily (BID) for 12 weeks, in a double-blind, placebo-controlled design.

This intervention refers to IPG11406, an investigational oral tablet being evaluated in a Phase 2, randomized, double-blind, placebo-controlled, dose-ranging study in adult patients with moderately to severely active ulcerative colitis (UC).

IPG11406 is administered twice daily (BID) at three dose levels (10 mg, 20 mg, or 40 mg) for 12 weeks. The formulation is intended for oral administration, with matching placebo used as the control. The primary objective is to assess clinical remission based on the modified Mayo Score at Week 12. Secondary and exploratory endpoints include clinical response, endoscopic/histologic improvement, pharmacokinetics, safety, and changes in inflammatory biomarkers.

Experimentell: IPG11406 20 mg BID

Participants in this arm receive IPG11406 20 mg oral tablets twice daily (BID) for 12 weeks, in a double-blind, placebo-controlled design.

This intervention refers to IPG11406, an investigational oral tablet being evaluated in a Phase 2, randomized, double-blind, placebo-controlled, dose-ranging study in adult patients with moderately to severely active ulcerative colitis (UC).

IPG11406 is administered twice daily (BID) at three dose levels (10 mg, 20 mg, or 40 mg) for 12 weeks. The formulation is intended for oral administration, with matching placebo used as the control. The primary objective is to assess clinical remission based on the modified Mayo Score at Week 12. Secondary and exploratory endpoints include clinical response, endoscopic/histologic improvement, pharmacokinetics, safety, and changes in inflammatory biomarkers.

Experimentell: IPG11406 40 mg BID

Participants in this arm receive IPG11406 40 mg oral tablets twice daily (BID) for 12 weeks, in a double-blind, placebo-controlled design.

This intervention refers to IPG11406, an investigational oral tablet being evaluated in a Phase 2, randomized, double-blind, placebo-controlled, dose-ranging study in adult patients with moderately to severely active ulcerative colitis (UC).

IPG11406 is administered twice daily (BID) at three dose levels (10 mg, 20 mg, or 40 mg) for 12 weeks. The formulation is intended for oral administration, with matching placebo used as the control. The primary objective is to assess clinical remission based on the modified Mayo Score at Week 12. Secondary and exploratory endpoints include clinical response, endoscopic/histologic improvement, pharmacokinetics, safety, and changes in inflammatory biomarkers.

Placebo-jämförare: Placebo

Participants in this arm receive matching placebo oral tablets twice daily (BID) for 12 weeks, identical in appearance to IPG11406, to maintain the double-blind study design.

This intervention refers to matching placebo oral tablets, identical in appearance, shape, size, and color to the IPG11406 investigational product, used as the control in this Phase 2, randomized, double-blind, placebo-controlled study in adult patients with moderately to severely active ulcerative colitis.

The placebo is administered twice daily (BID) for 12 weeks, following the same dosing schedule as the active IPG11406 treatment arms, to maintain the double-blind study design. It contains no active pharmaceutical ingredient (API) and is formulated to be indistinguishable from IPG11406 tablets for participants, investigators, and study staff.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Proportion of participants achieving clinical remission at Week 12, as assessed by the modified Mayo Score (mMS)
Tidsram: week 12

Clinical remission: mMS ≤2 with all subscores ≤1; stool frequency subscore 0 or 1 and ≥1 point decrease from baseline; rectal bleeding subscore 0; modified Mayo endoscopic subscore 0 or 1 (without friability for score 1)

week 12

Sekundära resultatmått

Resultatmått
Tidsram
Andel deltagare som uppnår klinisk respons baserat på mMS vid vecka 12
Tidsram: Vecka 12
Vecka 12
Andel deltagare som uppnår klinisk respons baserat på fullständigt Mayo-poäng vid vecka 12
Tidsram: Vecka 12
Vecka 12
Andel deltagare som uppnår klinisk remission baserat på fullständigt Mayo Score vid vecka 12
Tidsram: Vecka 12
Vecka 12
Andel deltagare som uppnår kombinerad PRO2-remission och endoskopisk remission vid vecka 12
Tidsram: Vecka 12
Vecka 12
Andel deltagare som uppnår endoskopisk remission vid vecka 12
Tidsram: Vecka 12
Vecka 12

Samarbetspartners och utredare

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Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

27 augusti 2026

Primärt slutförande (Beräknad)

1 december 2028

Avslutad studie (Beräknad)

1 december 2029

Studieregistreringsdatum

Först inskickad

10 april 2026

Först inskickad som uppfyllde QC-kriterierna

10 april 2026

Första postat (Faktisk)

17 april 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

12 november 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

6 november 2026

Senast verifierad

1 april 2026

Mer information

Termer relaterade till denna studie

Andra studie-ID-nummer

  • IPG11406-C003

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