MAIC of Fruquintinib Plus Paclitaxel Versus Ramucirumab Plus Paclitaxel in Advanced G/GEJ Adenocarcinoma
Adjusted Indirect Treatment Comparison of Fruquintinib-based Therapy Versus Standard Care in Advanced Gastric/Gastroesophageal Junction Adenocarcinoma: A MAIC Analysis.
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
This retrospective MAIC analysis employs individual patient data (IPD) from the FRUTIGA trial (fruquintinib arm) and published aggregate data (AgD) from RAINBOW-Asia (ramucirumab arm), with placebo as the common anchor. Pseudo individual participant data (Pseudo-IPD) for the RAINBOW-Asia trial were reconstructed from published Kaplan-Meier curves using the Guyot algorithm (2012).
•Weighting Methodology: Seven prognostic factors balanced: age <65, male sex, ECOG 0, GEJ primary, peritoneal metastases, metastatic sites, prior doublet chemotherapy Optimization via BFGS algorithm (convergence tolerance 1e-6) Effective sample size (ESS) retention: > 50%
•Statistical Analysis: Primary: Adjusted PFS hazard ratio (HR) using Bucher method with 95% bootstrap CI (100 iterations) Secondary: Weighted Cox models for OS; logistic regression for ORR/DCR Sensitivity: Simulated Treatment Comparison (STC) and covariate threshold analyses
•Sensitivity Analyses: RMST analyses were conducted as supportive evidence alongside primary Cox models for time-to-event endpoints violating proportional hazards assumptions.
Restricted mean survival time (RMST) Simulated Treatment Comparison (STC) Bootstrap confidence intervals (100 iterations)
Study Type
Study Type
Enrollment (Estimated)
Enrollment
Contacts and Locations
Study Contact
Study Contact
- Name: Feng Wang
- Phone Number: 020-8734-3571
- Email: wangfeng@sysucc.org.cn
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
Sampling Method
Study Population
Description
Inclusion Criteria:
- Histologically confirmed gastric/GEJ adenocarcinoma
- Advanced or metastatic disease
- ECOG 0-1
- Received either fruquintinib + paclitaxel or reference regimen
- Available baseline characteristics for matching variables
Exclusion Criteria:
- Missing key outcome data
- Incomplete baseline characteristics for >2 matching variables
- Prior fruquintinib exposure (control arm only)
Study Plan
How is the study designed?
Design Details
Number of groups / cohorts
Cohorts and Interventions
Group / CohortGroup / Cohort |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Fruquintinib + paclitaxel
Group 1: Fruquintinib + Paclitaxel (IPD)
|
(using IPD from the FRUTIGA trial, n=703) Fruquintinib:subjects received Fruquintinib orally, once daily for 3 wks on/ 1 wk off Paclitaxel:Paclitaxel 80mg/㎡ at day 1,8,15 of 4-week cycle.
Other Names:
|
|
Ramucirumab + paclitaxel
Group 2: Control Therapy (AgD from RAINBOW-Asia)
|
(using published AgD from RAINBOW-Asia, n=440) Ramucirumab:8 milligrams/kilogram (mg/kg) intravenous (IV) infusion on Days 1 and 15 of every 4-week cycle Paclitaxel :Paclitaxel 80mg/㎡ at day 1,8,15 of 4-week cycle.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Progression-Free Survival (PFS)
Time Frame: about 3 years
|
Time from randomization to progression/death, assessed via weighted Cox model
|
about 3 years
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Objective Response Rate (ORR)
Time Frame: about 3 years
|
CR+PR per RECIST 1.1, compared via weighted logistic regression
|
about 3 years
|
|
Disease Control Rate (DCR)
Time Frame: about 3 years
|
CR+PR+SD≥6 weeks, analyzed via weighted proportions
|
about 3 years
|
|
Overall Survival (OS)
Time Frame: about 3 years
|
Time from randomization to death, analyzed using weighted Kaplan-Meier
|
about 3 years
|
|
PFS by ECOG, metastasis burden, primary site, etc
Time Frame: about 3 years
|
To examine the associations between subgroup factors (including ECOG, metastasis burden, primary site, etc) and Progression-Free Survival (PFS).
|
about 3 years
|
|
OS by ECOG, metastasis burden, primary site, etc
Time Frame: about 3 years
|
To examine the associations between subgroup factors (including ECOG, metastasis burden, primary site, etc) and Overall Survival (OS).
|
about 3 years
|
Other Outcome Measures
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Sensitivity Analyses:Progression-Free Survival (PFS)
Time Frame: about 3 years
|
Simulated Treatment Comparison (STC), Bootstrap confidence intervals (100 iterations)
|
about 3 years
|
Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Principal Investigator: Feng Wang, Sun Yat-sen University
Study record dates
Study Major Dates
Study Start (Estimated)
Study Start
Primary Completion (Estimated)
Primary Completion
Study Completion (Estimated)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimated)
First Posted
Study Record Updates
Last Update Posted (Estimated)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
Other Study ID Numbers
- HMPL-013-FLAG-G118
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
IPD Sharing Time Frame
IPD Sharing Access Criteria
IPD Sharing Supporting Information Type
- SAP
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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