Evidence map›Paper›PMID 26037487›Full record

ArticlePhotochemistry and photobiology

Measuring the Physiologic Properties of Oral Lesions Receiving Fractionated Photodynamic Therapy.

Shannon M Gallagher-Colombo, Harry Quon, Kelly M Malloy, Peter H Ahn, Keith A Cengel, Charles B Simone, Ara A Chalian, Bert W O'Malley, Gregory S Weinstein, Timothy C Zhu and 3 more

Open access · bronzeAbstract readClinical Trial, Phase I
In one paragraph

Article in Photochemistry and photobiology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

17 citing papers in PubMed, 19 citations in OpenAlex.

  1. Review
  2. Article
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  4. Article
  5. Article
  6. Article
  7. Light Fluence Rate and Tissue Oxygenation (SPhotochemistry and photobiology · 2020
    Article
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  13. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 1 institution in 1 country.

Shannon M Gallagher-ColomboDepartment of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
Harry QuonDepartment of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
Kelly M MalloyDepartment of Otorhinolaryngology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
Peter H AhnDepartment of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
Keith A CengelDepartment of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
Charles B SimoneDepartment of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
Ara A ChalianDepartment of Otorhinolaryngology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
Bert W O'MalleyDepartment of Otorhinolaryngology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
Gregory S WeinsteinDepartment of Otorhinolaryngology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
Timothy C ZhuDepartment of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
Mary E PuttDepartment of Biostatistics and Epidemiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
Jarod C FinlayDepartment of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
Theresa M BuschDepartment of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
University of Pennsylvania · US

Funding

TUMOR HYPOXIA, PHOTOSENSITIZER, VASCULARITY AND PDTP01CA087971 · NCI · UNIVERSITY OF PENNSYLVANIA · PI BUSCH, THERESA M, CENGEL, KEITH A · 2001 to 2019
$24.8M
RADIATION BIOLOGY TRAINING GRANTT32CA009677 · NCI · UNIVERSITY OF PENNSYLVANIA · PI KENNEDY, ANN R · 1992 to 2011
$5.0M
Effects of Photodynamic Therapy on Tumor Oxygenation and Blood FlowR01CA085831 · NCI · UNIVERSITY OF PENNSYLVANIA · PI BUSCH, THERESA M · 2001 to 2018
$4.7M
Oxygen and photosensitizer levels in photodynamic therapy of head and neck tumorsR01CA129554 · NCI · UNIVERSITY OF PENNSYLVANIA · PI BUSCH, THERESA M · 2009 to 2013
$1.7M
NCI NIH HHS CA-085831NCI NIH HHS CA-087971NCI NIH HHS CA-129554NCI NIH HHS P01 CA087971NCI NIH HHS R01 CA085831NCI NIH HHS R01 CA129554NCI NIH HHS T32 CA009677NCI NIH HHS T32-CA-009677
6 · The paper itself

Abstract

Photodynamic therapy (PDT) can treat superficial, early-stage disease with minimal damage to underlying tissues and without cumulative dose-limiting toxicity. Treatment efficacy is affected by disease physiologic properties, but these properties are not routinely measured. We assessed diffuse reflectance spectroscopy (DRS) for the noninvasive, contact measurement of tissue hemoglobin oxygen saturation (St O2 ) and total hemoglobin concentration ([tHb]) in the premalignant or superficial microinvasive oral lesions of patients treated with 5-aminolevulinic acid (ALA)-PDT. Patients were enrolled on a Phase 1 study of ALA-PDT that evaluated fluences of 50, 100, 150 or 200 J cm(-2) delivered at 100 mW cm(-2) . To test the feasibility of incorporating DRS measurements within the illumination period, studies were performed in patients who received fractionated (two-part) illumination that included a dark interval of 90-180 s. Using DRS, tissue oxygenation at different depths within the lesion could also be assessed. DRS could be performed concurrently with contact measurements of photosensitizer levels by fluorescence spectroscopy, but a separate noncontact fluorescence spectroscopy system provided continuous assessment of photobleaching during illumination to greater tissue depths. Results establish that the integration of DRS into PDT of early-stage oral disease is feasible, and motivates further studies to evaluate its predictive and dosimetric value.

Indexed as

Blood Physiological PhenomenaPhotochemotherapyAdministration, OralAminolevulinic AcidDose-Response Relationship, DrugHemoglobinsHumansMouth DiseasesMouth MucosaPredictive Value of TestsAminolevulinic AcidHemoglobins

Identifiers

PMID26037487
PMCPMC4560604
OpenAlexW1483773401

What OpenQuestion holds

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LicenceTDM
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.