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A Phase I Study of CG-7321 Monotherapy or Combination Therapy in Advanced Solid Tumors

2. November 2026 aktualisiert von: Chengdu Cynogen Bio-pharmaceutical Tech. Co., Ltd.

A Phase I, Open-Label, Multi-Center Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Preliminary Efficacy of CG-7321 as Monotherapy or in Combination Therapy in Subjects With Advanced Solid Tumors

This is a Phase I, open-label, multi-center study to evaluate the safety, tolerability, pharmacokinetics (PK), and preliminary efficacy of CG-7321 capsules as monotherapy or in combination with fulvestrant in subjects with advanced solid tumors.

The study consists of:

  • Part Ia (Monotherapy): Dose escalation (accelerated titration followed by 3+3 design) from 2mg to 50mg twice daily (BID), plus dose expansion cohorts in advanced solid tumors including HR+/HER2- breast cancer, ovarian cancer, gastric cancer, and other tumor types.
  • Part Ib (Combination Therapy): Dose escalation of CG-7321 combined with fulvestrant in HR+/HER2- advanced breast cancer.

Studienübersicht

Status

Rekrutierung

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

CG-7321 is a novel oral small molecule inhibitor of cyclin-dependent kinases (CDKs), being developed for the treatment of advanced solid tumors. Preclinical studies have demonstrated potent anti-tumor activity in breast cancer, ovarian cancer, and gastric cancer models.

This Phase I study employs a dose escalation design to determine the maximum tolerated dose (MTD) and recommended Phase II dose (RP2D) of CG-7321.

Part Ia evaluates CG-7321 monotherapy with dose levels of 2mg, 6mg, 12mg, 20mg, 30mg, 40mg, and 50mg BID in a 28-day cycle. Single dosing (Cycle 0) followed by multiple dosing (Cycle 1 onwards) will be evaluated.

Part Ib evaluates CG-7321 in combination with fulvestrant in HR+/HER2- advanced breast cancer patients.

Dose expansion cohorts will further evaluate safety, PK, and preliminary efficacy at or near the RP2D in specific tumor types.

Eligible subjects include patients with histologically/cytologically confirmed advanced or metastatic solid tumors who have failed, are intolerant to, or have no effective standard therapy available, or who refuse standard treatment.

The Part Ia (monotherapy dose escalation) will be conducted first.

Studientyp

Interventionell

Einschreibung (Geschätzt)

30

Phase

  • Phase 1

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studienorte

    • Fujian
      • Fuzhou, Fujian, China, 350014
        • Rekrutierung
        • Fujian Cancer Hospital
        • Hauptermittler:
          • Fan Wu, MD
        • Kontakt:
    • Liaoning
      • Dalian, Liaoning, China, 116000
        • Rekrutierung
        • Zhongshan Hospital of Dalian University
        • Kontakt:
        • Hauptermittler:
          • Xiang Li, MD
        • Hauptermittler:
          • Ruoyu Wang, MD
    • Shanghai Municipality
      • Shanghai, Shanghai Municipality, China, 200032
        • Rekrutierung
        • Fudan University Shanghai Cancer Center
        • Hauptermittler:
          • Jian Zhang, MD
        • Kontakt:
    • Sichuan
      • Chengdu, Sichuan, China, 610041
        • Rekrutierung
        • West China Hospital, Sichuan University
        • Kontakt:
        • Hauptermittler:
          • Ting Luo, MD
        • Hauptermittler:
          • Ping Feng, MD

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

18 Jahre und älter (Erwachsene, Älterer Erwachsener)

Akzeptiert gesunde Freiwillige

Nein

Studienberechtigte Geschlechter

Alle

Beschreibung

Inclusion Criteria:

  • 1. Voluntary signed informed consent and compliance with protocol requirements
  • 2. Age ≥18 years, any gender
  • 3. Life expectancy ≥12 weeks
  • 4. Eastern Cooperative Oncology Group(ECOG) performance status 0-1
  • 5. For Ia monotherapy dose escalation: patients with cytologically and/or histopathologically confirmed advanced or metastatic solid tumors who have failed, are intolerant to, or have no effective standard treatment, or who refuse standard treatment
  • 6. Voluntary provision of tumor tissue specimens (archived within 2 years or fresh tissue)
  • 7. At least one measurable lesion per Response Evaluation Criteria in Solid Tumors, version 1.1(RECIST 1.1)
  • 8. Prior anticancer treatment-related toxicities resolved to ≤1 grade (except alopecia)
  • 9. Adequate organ and bone marrow function
  • 10. Negative serum pregnancy test within 7 days before first dose
  • 11. Agreement to use effective contraception from ICF signing to ≥6 months after last dose
  • 12. No breastfeeding during study and ≥6 months after last dose
  • 13. Understanding of study and voluntary written informed consent

Exclusion Criteria:

  • 1. Anticancer therapy (chemotherapy, targeted therapy, biologics, immunotherapy, radiotherapy) within 4 weeks before first dose, or participation in other interventional clinical studies (observational studies excluded)
  • 2. Strong Cytochrome P450 3A4(CYP3A4)inhibitors within 2 weeks before first dose
  • 3. Strong Cytochrome P450 2C8(CYP2C8) inhibitors within 2 weeks before first dose
  • 4. Other active malignancies within 3 years before first dose (except curable tumors treated radically)
  • 5. Primary Central Nervous System(CNS) tumors or CNS metastases that failed local treatment (stable asymptomatic CNS metastases allowed)
  • 6. Conditions affecting drug absorption or Pharmacokinetics(PK) parameters (e.g., uncontrolled nausea/vomiting, chronic diarrhea, malabsorption syndrome)
  • 7. Uncontrolled or significant cardiovascular disease,
  • 8. Active infection requiring systemic therapy within 2 weeks;
  • 9. Major surgery within 4 weeks before first dose (except minor procedures)
  • 10. Known allergy to study drug or excipients
  • 11. Mental or cognitive impairment affecting study compliance
  • 12. Known alcohol or drug dependence
  • 13. Pregnant or lactating women
  • 14. Investigator deems subject unsuitable for study participation

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Nicht randomisiert
  • Interventionsmodell: Sequenzielle Zuweisung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: CG-7321 2mg BID

CG-7321 capsule 2mg, orally twice daily, 28-day cycle. Cycle 0: Single dose on Day 1. Cycle 1 onwards: Continuous dosing.

Novel oral cyclin-dependent kinase (CDK) inhibitor. Dose levels: 2mg, 6mg, 12mg, 20mg, 30mg, 40mg, 50mg BID. 28-day cycle.

Experimental: CG-7321 6mg BID

CG-7321 capsule 6mg, orally twice daily, 28-day cycle. Cycle 0: Single dose on Day 1. Cycle 1 onwards: Continuous dosing.

Novel oral cyclin-dependent kinase (CDK) inhibitor. Dose levels: 2mg, 6mg, 12mg, 20mg, 30mg, 40mg, 50mg BID. 28-day cycle.

Experimental: CG-7321 12mg BID

CG-7321 capsule 12mg, orally twice daily, 28-day cycle. Cycle 0: Single dose on Day 1. Cycle 1 onwards: Continuous dosing.

Novel oral cyclin-dependent kinase (CDK) inhibitor. Dose levels: 2mg, 6mg, 12mg, 20mg, 30mg, 40mg, 50mg BID. 28-day cycle.

Experimental: CG-7321 20mg BID

CG-7321 capsule 20mg, orally twice daily, 28-day cycle. Cycle 0: Single dose on Day 1. Cycle 1 onwards: Continuous dosing.

Novel oral cyclin-dependent kinase (CDK) inhibitor. Dose levels: 2mg, 6mg, 12mg, 20mg, 30mg, 40mg, 50mg BID. 28-day cycle.

Experimental: CG-7321 30mg BID

CG-7321 capsule 30mg, orally twice daily, 28-day cycle. Cycle 0: Single dose on Day 1. Cycle 1 onwards: Continuous dosing.

Novel oral cyclin-dependent kinase (CDK) inhibitor. Dose levels: 2mg, 6mg, 12mg, 20mg, 30mg, 40mg, 50mg BID. 28-day cycle.

Experimental: CG-7321 40mg BID

CG-7321 capsule 40mg, orally twice daily, 28-day cycle. Cycle 0: Single dose on Day 1. Cycle 1 onwards: Continuous dosing.

Novel oral cyclin-dependent kinase (CDK) inhibitor. Dose levels: 2mg, 6mg, 12mg, 20mg, 30mg, 40mg, 50mg BID. 28-day cycle.

Experimental: CG-7321 50mg BID

CG-7321 capsule 50mg, orally twice daily, 28-day cycle. Cycle 0: Single dose on Day 1. Cycle 1 onwards: Continuous dosing.

Novel oral cyclin-dependent kinase (CDK) inhibitor. Dose levels: 2mg, 6mg, 12mg, 20mg, 30mg, 40mg, 50mg BID. 28-day cycle.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Dose-Limiting Toxicities (DLTs)
Zeitfenster: DLT observation period [approximately 28 days]

Number of participants experiencing DLTs during DLT evaluation period.

DLT observation period [approximately 28 days]
Maximum Tolerated Dose (MTD)
Zeitfenster: End of dose escalation phase [approximately 6-12 months]

The highest dose level at which ≤2/6 evaluable subjects experience DLT.

End of dose escalation phase [approximately 6-12 months]
Recommended Phase 2 Dose (RP2D)
Zeitfenster: End of dose escalation phase [approximately 6-12 months]

The dose level recommended for Phase 2 studies.

End of dose escalation phase [approximately 6-12 months]
Adverse Events (AEs) and SAEs
Zeitfenster: From first dose to 30 days after last dose [up to approximately 2 years]

Incidence and severity of AEs and SAEs, graded per NCI-CTCAE Version 5.0.

From first dose to 30 days after last dose [up to approximately 2 years]

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Objective Response Rate (ORR)
Zeitfenster: Every 8 weeks [up to approximately 2 years]

Percentage achieving CR or PR per RECIST v1.1.

Every 8 weeks [up to approximately 2 years]
Disease Control Rate (DCR)
Zeitfenster: Every 8 weeks [up to approximately 2 years]

Percentage achieving CR, PR, or SD per RECIST v1.1.

Every 8 weeks [up to approximately 2 years]
Duration of Response (DoR)
Zeitfenster: From first documented response until disease progression or death [up to approximately 2 years]

Time from first documented response to disease progression or death.

From first documented response until disease progression or death [up to approximately 2 years]
Progression-Free Survival (PFS)
Zeitfenster: From first dose until disease progression or death [up to approximately 2 years]

Time from first dose to disease progression per RECIST v1.1 or death.

From first dose until disease progression or death [up to approximately 2 years]
Overall Survival (OS)
Zeitfenster: From first dose until death [up to approximately 5 years]

Time from first dose to death from any cause.

From first dose until death [up to approximately 5 years]
Observed plasma maximum concentration (Cmax) of CG-7321 and its metabolite
Zeitfenster: Cycle 0 Day 1, Cycle 1 Day 1 up to Cycle 6 Day 1 (each cycle is 28 days)
Cycle 0 Day 1, Cycle 1 Day 1 up to Cycle 6 Day 1 (each cycle is 28 days)
Area under the concentration-time curve (AUC) of CG-7321 and its metabolite
Zeitfenster: Cycle 0 Day 1, Cycle 1 Day 1 up to Cycle 6 Day 1 (each cycle is 28 days)
Cycle 0 Day 1, Cycle 1 Day 1 up to Cycle 6 Day 1 (each cycle is 28 days)
Half-life (T1/2) of CG-7321 and its metabolite
Zeitfenster: Cycle 0 Day 1, Cycle 1 Day 1 up to Cycle 6 Day 1 (each cycle is 28 days)
Cycle 0 Day 1, Cycle 1 Day 1 up to Cycle 6 Day 1 (each cycle is 28 days)
Time to maximum concentration(Tmax) of CG-7321 and its metabolite
Zeitfenster: Cycle 0 Day 1, Cycle 1 Day 1 up to Cycle 6 Day 1 (each cycle is 28 days)
Cycle 0 Day 1, Cycle 1 Day 1 up to Cycle 6 Day 1 (each cycle is 28 days)

Andere Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Biomarkers
Zeitfenster: Baseline and during treatment as tissue samples become available [up to approximately 2 years]

Exploratory biomarker analysis including but not limited to CCNE expression levels.

Baseline and during treatment as tissue samples become available [up to approximately 2 years]
Tumor-to-blood drug concentration ratio
Zeitfenster: At time of tumor biopsy during treatment [up to approximately 2 years]

Ratio of CG-7321 and CG1-Mp2 concentrations in tumor tissue versus peripheral blood.

At time of tumor biopsy during treatment [up to approximately 2 years]

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

2. Juli 2024

Primärer Abschluss (Geschätzt)

1. Dezember 2026

Studienabschluss (Geschätzt)

1. August 2027

Studienanmeldedaten

Zuerst eingereicht

27. Oktober 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

2. November 2026

Zuerst gepostet (Tatsächlich)

6. November 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

6. November 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

2. November 2026

Zuletzt verifiziert

1. November 2025

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • CG-7321-001
  • CTR20240687/CTR20254836 (Registrierungskennung: ChinaDrugTrials)

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Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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