Safety and efficacy of anti-VEGF antibodies in the treatment of advanced gastric carcinomas.

Authors

null

Mounica Vorla

University of Louisville, Louisville, KY

Mounica Vorla , Usman Ali Akbar , Daniya Sheikh , Shameera Shaik Masthan , Mounika Pusa , Aditya Bamboria , Saman Barham , Ammar Yaser Dab , Shaheryar Qazi , Adil Khan , Rana Usman Anwer , Oluwasegun Akinti , Faiz Anwer

Organizations

University of Louisville, Louisville, KY, Mamata Medical College, Khammam, India, Nishtar Medical University, Multan, Pakistan, Sheikh Zayed Medical College, Rahim Yar Khan, Punjab, Pakistan, Cleveland Clinic Taussig Cancer Institute, Cleveland, OH

Research Funding

No funding received

Background: The prognosis of gastric cancer remains poor despite advances in diagnostic techniques, neoadjuvant chemo radiotherapy and surgery. This led to the development of Anti-Vascular Endothelial Growth Factor inhibitors (Anti-VEGF), which inhibit angiogenesis, inducing a state of dormancy in the tumors. In this review, we studied the safety and efficacy of Ramucirumab (RAM) and Bevacizumab (BVZ). Methods: Following the PRISMA guidelines, we searched the literature on PubMed, Cochrane, Embase & clinicaltrials.gov. A total of 311 articles were screened, and 4 studies were included. Results: When compared to placebo, in the two Phase III trials enrolling 1020 participants,RAM enhanced overall survival (OS) and progression-free survival (PFS). RAM treatment was associated with fewer hematological adverse effects, such as anemia. In addition, when administered in conjunction with CTx, bevacizumab (BVZ) improved OS (12.1m Vs 10.1m in one trial), but more clinical studies are needed to consolidate these findings. In both phase III studies with BVZ, anemia and neutropenia were shown to be less common, as shown in the table. Conclusions: Anti-VEGF inhibitors have shown to be effective in treating advanced or relapsed GC or GE CAs with minimal adverse effects. However, high-quality large prospective randomized clinical studies are still needed.

Author, Year
Intervention
Population

(n)
Median Age
Male (%)
Overall survival

(O.S)

(months)
Progression Free Survival

(P.F.S)

(months)
Hematological AE >G3-G4
Fuchs et.al., 2013, Ph III
RAM vs PbO
Tot = 355,

RAM = 238, PbO = 117
RAM = 60(52-67),

PbO = 60(51-71)
RAM = 169/238(71%), PbO = 79/117(68%)
RAM = 5.2m, PbO = 3.8mRAM = 2.1m, PbO = 1.3mA

RAM = 15/236(6%),

PbO = 9/115(8%)
Wilke et.al., 2014, Ph-III
RAM+ PTX

vs

PTX+ PbO
Tot = 665,

RAM = 330, PbO = 335
RAM = 61(25-83), PbO = 61(24-84)
RAM = 229/330(69%)

PbO = 243/335(73%)
RAM = 9.6m, PbO = 7.4 m
RAM = 4.4m, PbO = 2.9m
A

RAM = 30/327(9%), PbO = 31/329(30%),

N

RAM = 133/327(41%),

PbO = 62/329(19%),

T

RAM = 5/327(2%),

PbO = 6/329(2%)
Ohtsu et.al., 2011, Ph- III
CAP+CP+ BVZ

vs

CAP+ CP+ PbO
Tot = 774, BVZ = 387,

PbO = 387
BVZ = 58(22-81), PbO = 59 (22-82)


BVZ = 257/387 (66%),

PbO = 258/387

(67%)
BVZ = 12.1m, PbO = 10.1m
BVZ = 6.7m, PbO = 5.3m
A

BVZ = 40/386(10%),

PbO = 53/381(14%)

NBVZ = 136/386(35%)

PbO = 140/381(37%)
Shen et.al., 2014, Ph- III
CAP+CP+ BVZ

vs

CAP+ CP+ PbO
Tot = 202,

BVZ = 100,

PbO = 102
BVZ = 54.2,

PbO = 55.5
BVZ = 68/100 (68%),

PbO = 74/102

(72.5%)
BVZ = 10.5m, PbO = 11.4m
BVZ = 6.3m,

PbO = 6m


A

BVZ = 5/100(5%), PbO = 5/101(5%),

N

BVZ = 14/100(14%), PbO = 18/101(18%),

T

BVZ = 4/100(4%), PbO = 2/101(2%)

CA = Carcinoma, GC = Gastric Cancer, GE = Gastroesophageal Carcinoma, CTX = Chemotherapy, PTX = Paclitaxel, PbO = Placebo, RAM = Ramucirumab, BVZ = Bevacizumab, CAP = Capecitabine, CP = Cisplatin, A = Anemia, N = Neutropenia, T = Thrombocytopenia, AE = Adverse Events,Tot = Total number

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Abstract Details

Meeting

2022 ASCO Annual Meeting

Session Type

Publication Only

Session Title

Gastrointestinal Cancer—Gastroesophageal, Pancreatic, and Hepatobiliary

Track

Gastrointestinal Cancer—Gastroesophageal, Pancreatic, and Hepatobiliary

Sub Track

Esophageal or Gastric Cancer

Citation

J Clin Oncol 40, 2022 (suppl 16; abstr e16005)

DOI

10.1200/JCO.2022.40.16_suppl.e16005

Abstract #

e16005

Abstract Disclosures