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Esophageal CancerPhase 4NCT06437288

Hematoporphyrin Photodynamic Therapy for Esophageal Cancer

A Phase 4 study testing photodynamic therapy in people with Esophageal Cancer and Photodynamic Therapy, run by Sun Yat-sen University at 1 site in China.

Enrolling by invitation

Enrolling by invitation. The study team selects and invites participants, usually from an existing group of patients.

Sites and contacts
Official record
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Trial summary

The objective of the present clinical trial is to assess the efficacy of photodynamic therapy (PDT) employing hematoporphyrin injection in the management of recurrent or residual superficial esophageal carcinoma. Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Esophageal Cancer, Photodynamic Therapy
What is being tested?
photodynamic therapy
Could I receive a placebo?
No, everyone receives an active treatment
How many people
198 participants
Where
1 siteChina
Study dates
18 Sep 2024to 1 Dec 2030
Phase
Phase 4
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 1. Age between 18 and 80 years (inclusive of both 18 and 80 years), with no restrictions on gender.
  • 2.Patients with esophageal squamous cell carcinoma who have undergone prior treatment, including radiotherapy, chemotherapy, immunotherapy, or surgical intervention (esophagectomy or endoscopic esophageal cancer surgery), with pathological confirmation of recurrence or residual disease (at least of high-grade intraepithelial neoplasia or above).
  • 3.Patients with superficial esophageal cancer, where the primary lesion is located in the mucosal or submucosal layer, and the muscular layer is still intact, as indicated by ultrasound endoscopy and related examinations.
  • 4.Subjects capable of tolerating general anesthesia. 5.Absence of severe hematological, coagulation, cardiac, pulmonary, hepatic, renal, or immunological abnormalities.
  • 6.Voluntary consent to participate in the clinical trial after being fully informed about the purpose, process, potential risks, and benefits of the trial, including the subject's obligations.

Who cannot join

  • Known allergy to the study medication or related drugs.
  • Patients who have not recovered from the toxicities associated with prior radiotherapy or chemotherapy treatments.
  • Previous treatment with other photosensitizers that was ineffective, or subjects who have received a photosensitizer treatment within 12 months prior to enrollment.
  • Use of other photosensitizing medications within 4 weeks prior to administration, such as tetracycline antibiotics, sulfonamides, and phenothiazines.
  • Neutrophil count \<1.5×10^9 /L, platelet count \<100×10^9 /L, or hemoglobin \<100 g/L.
  • Serum creatinine ≥3 times the upper limit of normal or creatinine clearance \<60 ml/min/1.73m^2; ALT or AST \>3 times the upper limit of normal; or in the case of liver metastasis, ALT or AST \>5 times the upper limit of normal; serum bilirubin \>3 times the upper limit of normal.
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  • Presence of severe comorbid conditions, including serious heart disease, cerebrovascular disease, uncontrolled diabetes, and uncontrolled hypertension.
  • HIV, HCV, syphilis infection, or positive for both hepatitis B surface antigen and e antigen.
  • Active esophageal inflammation (especially visible active ulcers, hyperemia, necrosis, etc. under endoscopy) or clinically significant active infection symptoms.
  • Pregnant or lactating women, and sexually active subjects of childbearing potential (including males) who refuse to use appropriate contraceptive measures during the study.
  • Active bleeding or bleeding diathesis (abnormal coagulation mechanism).
  • Severe physical or mental illness that may affect treatment, assessment, or compliance with the study protocol.
  • Concurrent second primary tumor undergoing treatment.
  • Single lesion greater than 5cm in length.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

China1 site
  • Endoscopic Department of Sun Yat-Sen University Cancer Center

    Guangzhou, Guangdong, 510060

Other trials in China

About this study

Official title: Real-World Study of Hematoporphyrin Injection-Based Photodynamic Therapy in Patients With Recurrent or Residual Superficial Esophageal Cancer

The objective of the present clinical trial is to assess the efficacy of photodynamic therapy (PDT) employing hematoporphyrin injection in the management of recurrent or residual superficial esophageal carcinoma. The principal objective is to determine the capability of this therapeutic modality to elicit a complete response in the patient cohort under investigation.

The central research question that this study seeks to address is as follows:

Read more

What is the rate of complete response at day 28 following treatment with photodynamic therapy utilizing hematoporphyrin injection in patients suffering from recurrent or residual superficial esophageal cancer? This study is designed as a single-arm trial, devoid of a control or comparison group.

Eligible participants will meet the following criteria:

They will be adult patients, aged between 18 and 80 years, who have experienced recurrence or retention of superficial esophageal cancer subsequent to prior therapeutic interventions.

They will receive an intravenous administration of hematoporphyrin injection at a dosage of 3mg/kg over a duration of 60 minutes.

They will undergo irradiation with a 630nm laser, which will be administered 48-72 hours post-infusion.

Their response to treatment will be evaluated at day 28 post-therapy, with assessments encompassing complete response, progression-free survival, overall survival, swallowing functionality, quality of life, and the incidence of adverse events throughout the duration of the study

Being tested
photodynamic therapy
Medical subject headings
Esophageal Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • photodynamic therapyProcedure or surgery

    Receive an intravenous infusion of hematoporphyrin injection

Study groups in NCT06437288
Study groupRoleWhat they receive
photodynamic therapyExperimentalReceive an intravenous infusion of hematoporphyrin injection at a dose of 3mg/kg over 60 minutes. Undergo 630nm laser irradiation 48-72 hours after the infusion.
Receives: Procedure: photodynamic therapy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The complete response rate evaluated by endoscopic ultrasound (EUS)

    The proportion of patients showing a complete disappearance of the tumor following the treatment, as assessed by EUS on day 56

    Measured: 56 days after the treatment.

Secondary outcomes (5)
  1. Progression free survival

    Length of time during and after the treatment of a disease, in which a patient lives with the disease but it does not get worse.

    Measured: 3 years

  2. Overall survival

    length of time from the start of the treatment until the death of the patient, regardless of the cause.

    Measured: 3 years

  3. Adverse events

    Adverse events of the treatment.

    Measured: 1 month after the treatment

  4. Quality of life evaluated using the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30(EORTC QLQ-C30)

    The Quality of life evaluated using the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30(EORTC QLQ-C30) assesses cancer patients' quality of life with 30 items in functional and symptom scales scored 1-3, and a global health scale scored 1-7. Higher scores on functional/global health scales indicate better quality of life, while higher symptom scores mean worse outcomes. The scale's minimum and maximum scores vary by the number of items in each scale, with transformation to a 0-100 scale for standardization.

    Measured: 0.5 year; 1 year; 3 year

  5. Stooler's dysphagia grading

    Stooler's dysphagia grading, in its full title, is known as the Stooler's Dysphagia Scale. This scale is used to assess the severity of dysphagia, which is difficulty or discomfort in swallowing. The Stooler's scale categorizes dysphagia into five grades, ranging from Grade 0 to Grade 4, with higher grades indicating more severe dysphagia.

    Here is a breakdown of the Stooler's Dysphagia Scale:

    Grade 0: No difficulty in swallowing. Grade 1: Occasional difficulty in swallowing solids. Grade 2: Occasional difficulty in swallowing liquids and frequent difficulty with solids.

    Grade 3: Complete inability to swallow solids and frequent difficulty with liquids.

    Grade 4: Inability to swallow any oral intake. In this scale, a lower grade indicates a better outcome, as it signifies less difficulty in swallowing. Conversely, a higher grade indicates a worse outcome, with Grade 4 being the most severe, indicating the inability to swallow anything orally.

    Measured: 0.5 year; 1 year; 3 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted31 May 2024
  2. Study start18 Sep 2024
  3. Primary completion30 Sep 2027 (estimated)
  4. Study completion1 Dec 2030 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
198 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06437288
Sponsor's protocol ID
2024-FXY-183
Status last verified
May 2026
First submitted
21 May 2024
Last updated
22 May 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing photodynamic therapy in people with Esophageal Cancer and Photodynamic Therapy, run by Sun Yat-sen University at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 14 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: enrolling by invitation, as of the sponsor's last update on 22 May 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The complete response rate evaluated by endoscopic ultrasound (EUS) (time frame: 56 days after the treatment.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 May 2026.

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