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Medically Reviewed By
Dr. Neha Gupta ( Medical Oncology)
A clinical medical oncology guide on precision Biomarker-Driven Stomach Cancer Therapy, analyzing HER2 testing (ToGA / KEYNOTE-811), Claudin 18.2 monoclonal antibodies (Zolbetuximab - SPOTLIGHT trial), Nivolumab in PD-L1 CPS >=5 (CheckMate 649), and perioperative FLOT chemotherapy.
CRITICAL CLINICAL RED FLAG: Unexplained persistent dyspepsia, early satiety, progressive difficulty swallowing (dysphagia), iron deficiency anemia, or unintentional weight loss in an adult demands prompt upper gastrointestinal endoscopy and biopsy.
Advanced gastric adenocarcinoma requires upfront molecular testing on diagnostic endoscopic biopsy specimens to guide tailored systemic regimens:
HER2/neu Overexpression: Present in 15β20% of gastric adenocarcinomas (predominantly intestinal subtype and gastroesophageal junction tumors).
Claudin 18.2 Positivity: Expressed in up to 35β40% of gastric cancers (defined as >=75% of tumor cells showing moderate-to-strong membranous staining).
PD-L1 Combined Positive Score (CPS): Quantified via 28-8 or 22C3 IHC assays (CPS >=5 identifies major immunotherapy responders).
Microsatellite Instability-High (MSI-H / dMMR): Present in 5β8% of gastric tumors, exhibiting exceptional sensitivity to checkpoint inhibitors.
Biomarker-directed therapeutic algorithms:
HER2-Positive (KEYNOTE-811 Trial): Trastuzumab + Pembrolizumab + Fluoropyrimidine/Platinum doublet yields objective response rates exceeding 74%.
Claudin 18.2-Positive / HER2-Negative (SPOTLIGHT & GLOW Trials): Zolbetuximab (anti-Claudin 18.2 chimeric IgG1 antibody) + mFOLFOX6 or CAPOX significantly prolongs progression-free and overall survival.
PD-L1 CPS >=5 / HER2-Negative (CheckMate 649 Trial): Nivolumab + FOLFOX/CAPOX establishes standard frontline therapy, reducing mortality risk by 29%.
"Stomach cancer is no longer treated with one-size-fits-all chemotherapy. Comprehensive biomarker profiling for HER2, Claudin 18.2, and PD-L1 unlocks targeted therapies that dramatically improve survival." β Dr. Neha Gupta
For resectable cT2 or node-positive gastric cancer, 4 pre-operative and 4 post-operative cycles of FLOT (5-FU, Leucovorin, Oxaliplatin, Docetaxel) significantly improves complete R0 resection rates and 5-year survival compared to older ECF regimens.
CLINICAL CAUTION: HER2 testing in gastric cancer must follow gastric-specific scoring criteria (basolateral membrane staining and tumor heterogeneity); applying breast cancer HER2 criteria leads to false-negative under-treatment.
Following radical total or subtotal gastrectomy, routine lifelong intramuscular Vitamin B12 supplementation, oral iron, and small frequent high-protein meals prevent dumping syndrome and megaloblastic anemia.
1. Zolbetuximab plus mFOLFOX6 in Claudin 18.2-Positive Gastric Cancer (SPOTLIGHT Trial) β Lancet, 2023; 401(10389): 1655-1668.
2. First-line Nivolumab plus Chemotherapy for Advanced Gastric Cancer (CheckMate 649) β Lancet, 2021; 398(10294): 27-40.
Senior Consultant & Clinical Director β Medical Oncology
MBBS (BFUHS Faridkot), MD Radiation Oncology (BFUHS Faridkot), DrNB Medical Oncology (Sarvodaya Hospital, Faridabad), Precision Oncology (Harvard, USA), Ex Consultant RGCI New Delhi
13+ Years Experience
Spica β Grover Hospital
Request a priority OPD appointment or second opinion on your scans.
Proprietary surgical methodologies and precision protocols pioneered by our senior directors to minimize trauma, protect natural anatomy, and accelerate recovery.
Dr. Deepak Garg (Orthopaedic Surgical Oncology - RGCI Delhi Trained) and Dr. Neha Gupta (Medical Oncology) co-lead the Bone Cancer & Sarcoma Center at Spica Healthcare. Integrating intensive multi-agent neoadjuvant chemotherapy protocols (MAP: High-Dose Methotrexate, Doxorubicin, Cisplatin for Osteosarcoma; VIDE: Vincristine, Ifosfamide, Doxorubicin, Etoposide for Ewing Sarcoma) with 3D computer-navigated limb salvage surgery and modular titanium megaprosthetic joint reconstruction, 5-year survival rates exceed 75% to 80% while saving over 95% of patients from limb amputation.
Spica Healthcare β Bone and Cancer Institute, Bathinda β is South-Western Punjab's premier super-speciality centre led by AIIMS and Tata Memorial fellowship-trained directors.
Every diagnostic MRI review, surgical staging, and operation is personally directed by chief clinical specialists β Dr. Deepak Garg (Orthopaedic Oncology & Robotics) and Dr. Neha Gupta (Medical Oncology) β guaranteeing zero junior proxies.
Sub-millimeter implant positioning and soft-tissue ligament balancing ensuring patients walk comfortably within 24 hours of total knee replacement.
South-West Punjab's only dedicated centre for modular titanium megaprosthesis, saving natural limbs and functions in 95%+ of bone cancer patients.
Full cashless coverage for Ayushman Bharat (PM-JAY), Punjab Govt Health Schemes, ECHS, and 30+ private insurance networks with on-desk approvals.
Positive-pressure HEPA filtered theatres minimizing infection rates below international benchmarks with 24/7 dedicated critical care backup.
Fellowship-trained surgical directors from AIIMS & Tata Memorial providing compassionate, world-class tertiary care in super-speciality orthopaedics and medical oncology.
Senior Consultant & Clinical Director β Medical Oncology
MBBS (BFUHS Faridkot), MD Radiation Oncology (BFUHS Faridkot), DrNB Medical Oncology (Sarvodaya Hospital, Faridabad), Precision Oncology (Harvard, USA), Ex Consultant RGCI New Delhi
Senior Consultant & Clinical Director β Orthopaedic Oncology & Robotic Joint Surgery
16+ Yrs ExpSenior Consultant & Clinical Director β Orthopaedic Oncology & Robotic Joint Surgery
MBBS (TNMC Mumbai), DNB Orthopaedics (PGI & SP Miraj), Fellowship Arthroplasty and Arthroscopy (Fortis Hospital, New Delhi), Fellowship Orthopaedic Oncology (Rajiv Gandhi Cancer Institute, New Delhi)
Free OPD screening camps, director-led masterclasses, and national oncology representations by Spica Healthcare.
National Master Course in Musculoskeletal Oncology held in Varca, Goa, organized by HBCH & RC, New Chandigarh (Tata Memorial Centre) and Sarcoma Education Foundation in academic partnership with IMSOS, featuring Dr. Deepak Garg.
Join Dr. Deepak Garg at Grover Hospital Bathinda for a comprehensive free joint and bone health camp featuring free BMD scans, arthritis staging, and expert clinical consultations.
13th Annual Conference of API Malwa Branch (MAPICON 2026) in Bathinda featuring SPICA Healthcare directors Dr. Deepak Garg and Dr. Neha Gupta delivering guest faculty lectures on limb salvage surgery in bone cancer and advances in systemic cancer treatment.
A state-level continuing medical education conference and surgical video masterclass on modern limb-salvage surgery and precision oncology for orthopaedic surgeons and postgraduates.
A dedicated community cancer awareness drive and free screening camp led by Dr. Neha Gupta focusing on early breast and cervical cancer detection for women in Malwa region.
Join Dr. Deepak Garg for an interactive live online webinar explaining modern muscle-sparing knee and hip replacement, zero-pain recoveries, and live patient question answers.
Real stories from patients who recovered through limb preservation surgery, 3D robotic joint replacements, and precision cancer care at Spica Healthcare β Grover Hospital, Bathinda.
βAfter completing ovarian cancer chemotherapy, genetic testing by Dr. Neha Gupta revealed a BRCA gene mutation. She placed me on oral Olaparib maintenance tablets at home. My CA-125 is completely normal at 8 U/mL and my scans show zero evidence of disease after 2 years!β
Faridkot β Verified Recovery
βAn L5-S1 disc herniation caused shooting electric pain down my left leg, leaving me unable to stand straight for 2 months. Dr. Deepak Garg performed Micro-Endoscopic Discectomy through a 16mm keyhole port without any spinal fusion or screws. The shooting pain disappeared immediately upon waking up, and I was discharged the next morning!β
Bathinda β Verified Recovery
βWhen diagnosed with HER2-positive breast cancer, I was terrified of chemotherapy nausea and hair loss. Dr. Neha Gupta's daycare unit used a chemoport and scalp-cooling caps. I had zero vomiting, walked out each afternoon to sleep in my own bed, and completed targeted Trastuzumab with complete cancer clearance!β
Sirsa β Verified Recovery
βSevere hip avascular necrosis left me limping with agonizing groin pain. Dr. Deepak Garg performed Direct Anterior Total Hip Replacement with dual-mobility ceramic bearings without cutting any buttock muscles. I walked the very evening of surgery and drove my car at 3 weeks!β
Mansa β Verified Recovery
βTwo outside hospitals told my father that my right leg had to be amputated from the hip due to distal femur osteosarcoma. Dr. Deepak Garg gave us confidence. He removed the entire bone cancer with clear margins and rebuilt my knee using a modular titanium megaprosthesis. Today I walk normally, ride my motorcycle, and am 100% cancer-free!β
Muktsar β Verified Recovery
βI was terrified of knee surgery after seeing neighbors bedridden for months. Dr. Deepak Garg's subvastus muscle-sparing technique meant zero cutting of my thigh muscle. I was walking with a walker within 6 hours of surgery and climbed stairs at 2 weeks without any knee pain!β
Bathinda β Verified Recovery
Evidence-based surgical recovery roadmaps, robotic joint protocols, and precision oncology insights written by our clinical directors.
Sports medicine & trauma guide by Dr. Deepak Garg on multi-ligament knee injuries (MLKI), Schenck classification KD-I to KD-IV, popliteal vascular evaluation, and anatomical 4K arthroscopic reconstruction (ACL/PCL/PLC).
Senior Consultant & Clinical Director β Orthopaedic Oncology & Robotic Joint Surgery
Revision hip surgery guide by Dr. Deepak Garg on massive acetabular bone loss, Paprosky classification Type I-IIIB, 3D-printed trabecular titanium modular augments, and pelvic discontinuity repair.
Senior Consultant & Clinical Director β Orthopaedic Oncology & Robotic Joint Surgery
Orthopaedic oncology guide by Dr. Deepak Garg on managing metastatic bone disease of the long bones, Mirels' scoring criteria, prophylactic intramedullary nailing, and modular tumor resection.
Senior Consultant & Clinical Director β Orthopaedic Oncology & Robotic Joint Surgery
Joint replacement guide by Dr. Deepak Garg comparing Kinematic Alignment (KA) vs. Mechanical Alignment (MA) in 3D robotic-assisted total knee arthroplasty, soft tissue balancing, and Day-1 walking outcomes.
Senior Consultant & Clinical Director β Orthopaedic Oncology & Robotic Joint Surgery
Comprehensive clinical orthopaedic oncology analysis by Dr. Deepak Garg on Giant Cell Tumor of Bone (GCTB), Campanacci staging, extended intralesional curettage, subchondral cementation, and megaprosthetic reconstruction.
Senior Consultant & Clinical Director β Orthopaedic Oncology & Robotic Joint Surgery
Orthopaedic oncology guide by Dr. Deepak Garg on extremity soft tissue sarcoma management, 3D barrier-based margin clearance, neoadjuvant IMRT protocols, and flap reconstruction.
Senior Consultant & Clinical Director β Orthopaedic Oncology & Robotic Joint Surgery
