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

2 novembre 2026 mis à jour par: 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.

Aperçu de l'étude

Statut

Recrutement

Les conditions

Intervention / Traitement

Description détaillée

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.

Type d'étude

Interventionnel

Inscription (Estimé)

30

Phase

  • La phase 1

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

Lieux d'étude

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

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

18 ans et plus (Adulte, Adulte plus âgé)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

La description

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

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Traitement
  • Répartition: Non randomisé
  • Modèle interventionnel: Affectation séquentielle
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: 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.
Médicament: CG-7321

Novel oral cyclin-dependent kinase (CDK) inhibitor. Dose levels: 2mg, 6mg, 12mg, 20mg, 30mg, 40mg, 50mg BID. 28-day cycle.
Expérimental: 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.
Médicament: CG-7321

Novel oral cyclin-dependent kinase (CDK) inhibitor. Dose levels: 2mg, 6mg, 12mg, 20mg, 30mg, 40mg, 50mg BID. 28-day cycle.
Expérimental: 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.
Médicament: CG-7321

Novel oral cyclin-dependent kinase (CDK) inhibitor. Dose levels: 2mg, 6mg, 12mg, 20mg, 30mg, 40mg, 50mg BID. 28-day cycle.
Expérimental: 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.
Médicament: CG-7321

Novel oral cyclin-dependent kinase (CDK) inhibitor. Dose levels: 2mg, 6mg, 12mg, 20mg, 30mg, 40mg, 50mg BID. 28-day cycle.
Expérimental: 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.
Médicament: CG-7321

Novel oral cyclin-dependent kinase (CDK) inhibitor. Dose levels: 2mg, 6mg, 12mg, 20mg, 30mg, 40mg, 50mg BID. 28-day cycle.
Expérimental: 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.
Médicament: CG-7321

Novel oral cyclin-dependent kinase (CDK) inhibitor. Dose levels: 2mg, 6mg, 12mg, 20mg, 30mg, 40mg, 50mg BID. 28-day cycle.
Expérimental: 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.
Médicament: CG-7321

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

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Dose-Limiting Toxicities (DLTs)
Délai: 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)
Délai: 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)
Délai: 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
Délai: 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]

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Objective Response Rate (ORR)
Délai: 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)
Délai: 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)
Délai: 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)
Délai: 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)
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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)

Autres mesures de résultats

Mesure des résultats
Description de la mesure
Délai
Biomarkers
Délai: 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
Délai: 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]

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

Chengdu Cynogen Bio-pharmaceutical Tech. Co., Ltd.

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

2 juillet 2024

Achèvement primaire (Estimé)

1 décembre 2026

Achèvement de l'étude (Estimé)

1 août 2027

Dates d'inscription aux études

Première soumission

27 octobre 2026

Première soumission répondant aux critères de contrôle qualité

2 novembre 2026

Première publication (Réel)

6 novembre 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

6 novembre 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

2 novembre 2026

Dernière vérification

1 novembre 2025

Plus d'information

Termes liés à cette étude

Mots clés

Termes MeSH pertinents supplémentaires

Autres numéros d'identification d'étude

  • CG-7321-001
  • CTR20240687/CTR20254836 (Identificateur de registre: ChinaDrugTrials)

Plan pour les données individuelles des participants (IPD)

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INDÉCIS

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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