Evidence map›Paper›PMID 32221052›Full record

Trial reportIndian pediatrics2020

Evaluation of Vascular Endothelial Growth Factor (VEGF) and Thrombospondin-1 as Biomarkers of Metronomic Chemotherapy in Progressive Pediatric Solid Malignancies.

Raja Pramanik, Anudishi Tyagi, Sandeep Agarwala, Sreenivas Vishnubhatla, Deepa Dhawan, Sameer Bakhshi

Abstract readRandomized Controlled Trial
PubMed
In one paragraph

Trial report in Indian pediatrics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 36% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Raja PramanikDepartment of Medical Oncology, All India Institute of Medical Sciences, New Delhi, India.
Anudishi TyagiDepartment of Medical Oncology, All India Institute of Medical Sciences, New Delhi, India.
Sandeep AgarwalaDepartment of Paediatric Surgrery, All India Institute of Medical Sciences, New Delhi, India.
Sreenivas VishnubhatlaDepartment of Biostatistics, All India Institute of Medical Sciences, New Delhi, India.
Deepa DhawanDepartment of Medical Oncology, All India Institute of Medical Sciences, New Delhi, India.
Sameer BakhshiDepartment of Medical Oncology, All India Institute of Medical Sciences, New Delhi, India. Correspondence to: Dr Sameer Bakhshi, Professor of Pediatric Oncology, Department of Medical Oncology, Dr BRA Institute Rotary Cancer Hospital, All India Institute of Medical Sciences, New Delhi 110 029, India. sambakh@hotmail.com.
All India Institute of Medical Sciences · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveWe compared Vascular Endothelial Growth factor (VEGF) and Thrombospondin-1 between patients with progressive paediatric malignancies randomized to metronomic chemotherapy versus placebo to determine their role as biomarker.

methodsIn this double-blinded, placebo-controlled randomized study of 108 progressive pediatric malignancies, serum VEGF and thrombospondin-1 levels were evaluated using ELISA at baseline, A2 (week-9 or earlier if progressed) and A3 (week-18 or earlier if progressed).

resultsMean VEGF and thrombospondin-1 at baseline, A2 and A3 and the change from baseline to A2 were not different between two groups. In metronomic arm, responders (those completing 3 cycles) had significantly lower mean (SD) baseline VEGF levels [659.7(362.1) vs 1143.9 (622.0) µg/mL] (P=0.002) and significant decrease in thrombospondin-1 from baseline to A2 [-4.43(8.0) µg/mL vs 1.7(11.3) µg/mL] (P=0.04), as compared to non-responders. Similar changes were not observed in responders on placebo arm. No consistent trend of these biomarkers was observed.

conclusionsVEGF and thrombospondin-1 are not reliable biomarkers for response to metronomic chemotherapy.

Indexed as

NeoplasmsThrombospondin 1Antineoplastic Combined Chemotherapy ProtocolsBiomarkersChildHumansVascular Endothelial Growth Factor ABiomarkersThrombospondin 1Vascular Endothelial Growth Factor A

Identifiers

PMID32221052
OpenAlexW3013315194

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.