Phase 3
Completed N=545
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
| Outcome | Result | p-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.
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.