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Phase 3 Completed N=545 Randomized Quadruple-blind Treatment

LOGiC - Lapatinib Optimization Study in ErbB2 (HER2) Positive Gastric Cancer: A Phase III Global, Blinded Study Designed to Evaluate Clinical Endpoints and Safety of Chemotherapy Plus Lapatinib

Neoplasms, Gastrointestinal Tract
Source: ClinicalTrials.gov NCT00680901 ↗
Enrolled (actual)
545
Serious AEs
23.7%
Results posted
Oct 2013
Primary outcomePrimary: Overall Survival at the Time of Primary Analysis — 12.2; 10.5 Months — p=0.3492

Summary

This was an international multi-center trial that enrolled patients with locally advanced, unresectable, or metastatic gastric, esophageal, or gastro-esophageal junction cancer whose tumors had amplification of the ErbB2 (HER2) gene. The trial investigated whether lapatinib, when added to the chemotherapy regimen, capecitabine plus oxaliplatin (CapeOx), extended the time to progression and overall survival. Tumor ErbB2 (HER2) status had to be known before trial entry. CapeOx was administered to all patients, and patients were randomly assigned to receive either lapatinib or placebo.

Outcome Measures

OutcomeResultp-value
PRIMARY
Overall Survival at the Time of Primary Analysis
12.2; 10.5 0.3492
PRIMARY
Overall Survival in All Randomized Participants at the Time of Primary Analysis
11.9; 10.4 0.3244
SECONDARY
Overall Survival at the Time of Final Analysis
12.0; 10.4
SECONDARY
Progression Free Survival (PFS)
6.2; 5.4
SECONDARY
Percentage of Participants With a Confirmed Complete Response (CR) or a Partial Response (PR)
131; 94
SECONDARY
Percentage of Participants With Clinical Benefit (CB)
199; 188
SECONDARY
Time to Response (TTR)
1.4; 1.4
SECONDARY
Duration of Response (DOR)
7.3; 5.6
SECONDARY
Percentage of Participants With Any On-therapy Adverse Event (AE) and Serious Adverse Event (SAE)
255; 237; 73; 54
SECONDARY
Percentage of Participants With On-therapy Adverse Event (AE) by Maximum Grade
43; 56; 85; 78; 94; 69
SECONDARY
Percentage of Participants With On-therapy Serious Adverse Event (SAE) by Maximum Grade
3; 3; 6; 4; 37; 21
SECONDARY
Mean Change From Baseline in the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life (QOL) Questionnaire Core 30 (QLQ-C30) Domain Scores
-6.6; -5.1; -9.4; -9.6; -8.9; -11.7
SECONDARY
Mean Change From Baseline in the EORTC Quality of Life (QOL) Questionnaire of Stomach 22 (QLQ-STO22) Scales/Items Score Scale
3.4; -3.1; -1.5; -0.6; -1.4; -4.1
SECONDARY
Mean Change From Baseline in Utility Score (Health Utility Index) in the EuroQoL-5 Dimensions (EQ-5D) Questionnaire
-0.17; -0.07
SECONDARY
Mean Change From Baseline in Thermometer Score (EQ VAS) in the EuroQoL-5 Dimensions (EQ-5D) Questionnaire
-4.61; -7.90
SECONDARY
Percentage of Participants With Worst-case On-therapy Chemistry Toxicities
163; 153; 87; 94; 8; 11
SECONDARY
Percentage of Participants With Worst-case On-therapy Hematologic Toxicities
18; 22; 104; 121; 104; 93

Eligibility Criteria

Key inclusion criteria

  • Histologically confirmed gastric adenocarcinoma or adenocarcinoma of the esophagus or gastro-esophageal junction.
  • Gastric cancer that is unresectable due to locally advanced (defined as stage IV: T4N1-3 or TanyN3), metastatic, or locally recurrent disease; Esophageal cancer that is unresectable due to locally advanced (T3N1 or T4Nany), metastatic or locally recurrent disease.
  • Measurable or non-measurable, but radiologically evaluable disease, according to RECIST.
  • HER2 amplification by FISH assessed by the local or designated central laboratory; Subjects with unknown HER2 status were not eligible.
  • Adequate organ function, as defined in the study protocol, assessed within 14 days prior randomization.
  • Cardiac ejection fraction within institutional range of normal as measured by echocardiogram (ECHO).
  • Prior/Concurrent Therapy:
  • At least 3 weeks following major surgery, such as gastrectomy, and were recovered from any related toxicity More than 5 years since prior chemotherapy for malignancy other than GC. At least 4 weeks since prior radiotherapy
  • More than 5 years since prior biologic or hormonal therapy or immunotherapy for malignancy other than gastric carcinoma.

Key exclusion criteria

  • Pregnant or lactating females at any time during the study.
  • Known history of active CNS disease.
  • Uncontrolled ascites.
  • Concurrent anti-cancer therapy (chemotherapy, radiation therapy other than for pain relief, immunotherapy, biologic therapy, hormonal therapy or surgery) while taking investigational treatment.
  • Gastric carcinoid, epidermoid, sarcomas, or squamous cell carcinoma.
  • Prior palliative chemotherapy for the treatment of gastric cancer.
  • Prior treatment with oxaliplatin-based neoadjuvant or adjuvant chemotherapy completed <12 months.
  • Malabsorption syndrome or uncontrolled inflammatory gastrointestinal disease (such as Crohn's disease or ulcerative colitis).
  • Known history of uncontrolled or symptomatic angina, arrhythmias, or congestive heart failure.
  • Uncontrolled infection.
  • History of other malignancy. However, subjects who were disease-free for 5 years, or subjects with a history of a completely resected non-melanoma skin cancer or successfully treated in situ carcinoma, were eligible.
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT00680901). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.

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