Evidence map›Paper›PMID 32077114›Full record

ReviewPhotochemistry and photobiology2020

Vitamin D and Other Differentiation-promoting Agents as Neoadjuvants for Photodynamic Therapy of Cancer.

Edward V Maytin, Tayyaba Hasan

Registry-linked trialOpen access · greenAbstract readReview
In one paragraph

Review in Photochemistry and photobiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07241585 (Vitamin D Effects on Immune Microenvironment of Nonmelanoma Skin Cancer After Photodynamic Therapy), which is not on this map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 9% 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.

NCT07241585 narecruitingnot on this mapstarted 2026, after this paper: background citation

Vitamin D Effects on Immune Microenvironment of Nonmelanoma Skin Cancer After Photodynamic Therapy (PDT)

TypeinterventionalSponsorCase Comprehensive Cancer CenterRan2026 to 2027Enrolled54ConditionsNonmelanoma Skin Cancer, Basal Cell Carcinoma, Squamous Cell CarcinomaArmsVitamin D (VitD), Placebo, Photodynamic therapy (PDT), Mohs surgery or electrodessication & curettage (ED&C) (standard of care)
3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Review
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  5. Highways and Detours in the Realm of Photodynamic Therapy.International journal of molecular sciences · 2024
    Review
  6. Article
  7. Review
  8. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 2 institutions in 1 country.

Edward V MaytinDepartments of Dermatology and Biomedical Engineering, Cleveland Clinic, Cleveland, OH.ORCID 0000-0002-3690-8382
Tayyaba HasanWellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA.
Cleveland Clinic · USMassachusetts General Hospital · US

Funding

Small Molecule Enhancers of Photodynamic Therapy for Skin CancerP01CA084203 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI Brian William Pogue · 2001 to 2026
$27.9M
Vitamin D and Photodynamic Therapy for Human Skin Cancer (SCC and BCC)R01CA204158 · NCI · CLEVELAND CLINIC LERNER COM-CWRU · PI MAYTIN, EDWARD V · 2017 to 2022
$2.3M
Combination Therapy With 5-FU and PDT For The Treatment Of Post-Transplant PremalR21CA156227 · NCI · CLEVELAND CLINIC LERNER COM-CWRU · PI MAYTIN, EDWARD V · 2011 to 2012
$400k
Oral Vitamin D3 and Photodynamic Therapy of Epithelial CancersR21CA187805 · NCI · CLEVELAND CLINIC LERNER COM-CWRU · PI MAYTIN, EDWARD V · 2014 to 2015
$369k
NCI NIH HHS P01 CA084203NCI NIH HHS P01CA084203NCI NIH HHS R01 CA204158NCI NIH HHS R21 CA156227NCI NIH HHS R21 CA187805
6 · The paper itself

Abstract

The efficacy of photodynamic therapy (PDT) using aminolevulinic acid (ALA), which is preferentially taken up by cancerous cells and converted to protoporphyrin IX (PpIX), can be substantially improved by pretreating the tumor cells with vitamin D (Vit D). Vit D is one of several "differentiation-promoting agents" that can promote the preferential accumulation of PpIX within the mitochondria of neoplastic cells, making them better targets for PDT. This article provides a historical overview of how the concept of using combination agents ("neoadjuvants") for PDT evolved, from initial discoveries about neoadjuvant effects of methotrexate and fluorouracil to later studies to determine how vitamin D and other agents actually work to augment PDT efficacy. While this review focuses mainly on skin cancer, it includes a discussion about how these concepts may be applied more broadly toward improving PDT outcomes in other types of cancer.

Indexed as

Neoadjuvant TherapyPhotochemotherapyAdministration, OralAminolevulinic AcidCell DifferentiationFluorouracilHumansMethotrexateNeoplasmsPhotosensitizing AgentsVitamin DAminolevulinic AcidFluorouracilMethotrexatePhotosensitizing AgentsVitamin D

Identifiers

PMID32077114
PMCPMC7384449
OpenAlexW3006938215

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

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.