At a glance
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A Prospective Phase II Study of Prophylactic TPO Combined with Bone Marrow-sparing Intensity-modulated Radiotherapy to Reduce Platelet Inhibition in Patients with Esophageal Cancer Undergoing Concurrent Chemoradiotherapy
In Brief
A Phase 2 clinical trial evaluating rhTPO for Esophageal Cancer and 3 related conditions. Completed, enrolled 32 participants across 1 site.
Detailed Summary
The goal of this interventional study is to explore the protective effect of prophylactic TPO combined with bone marrow sparing (BMS)-IMRT in patients with esophageal cancer undergoing concurrent chemoradiotherapy. The main purpose is to reduce the incidence of all grades of thrombocytopenia from 35% to less than 10% by the intervention of study. Participants will initiate concurrent chemoradiotherapy within 2 weeks after enrollment,and they will receive subcutaneous injection of recombinant human thrombopoietin (rhTPO) 15000U once a week during the radiotherapy.
Study Details
Timeline
Interventions
Standard treatment options: Radiotherapy: 95% planning target volume (planning target volume,PTV) ≥45Gy(without simultaneous boost). Concurrent chemotherapy: Weekly regimen: paclitaxel 50mg/m2 d1, nedaplatin/cisplatin 25 mg/m2d1, a total of 5 cycles. Three weeks regimen: paclitaxel 135-175mg/m2 d1, nedaplatin/cisplatin 80mg/m2, a total of 2 cycles. The active bone marrow was determined by magnetic resonance(magnetic resonance,MR), and the dose limits are: V5\<95%,V10\<85%,V20\<60%,V30\<40%;95%PTV\>45Gy. rhTPO,15000U ih. qw(during the radiotherapy course)