Immunotherapy After Transplantation for Skin Cancer Prevention in Organ Transplant Recipients

May 5, 2025 updated by: Shadmehr Demehri, Massachusetts General Hospital

Calcipotriol Plus 5-Fluorouracil Immunotherapy for Skin Cancer Prevention in Organ Transplant Recipients

This clinical trial aims to investigate the efficacy of Calcipotriol ointment combined with 5-FU cream in Organ Transplant Recipients (OTRs) to determine if it can stimulate the immune cells against actinic keratoses precancerous skin lesions after transplantation and prevent cutaneous squamous cell carcinoma (SCC) in long-term.

Study Overview

Detailed Description

The main goal of this investigator-initiated clinical trial is to determine the efficacy of topical calcipotriol combined with 5-fluorouracil (5-FU) treatment in OTRs on immunosuppressive medications with precancerous skin lesions called actinic keratoses (AKs) and a history of non-melanoma skin cancer in order to eliminate AKs and prevent squamous cell carcinoma (SCC) development. SCC is the most common cutaneous malignancy seen after transplantation, with a 65-250fold greater incidence in organ transplant recipients (OTRs) compared to the general population. This increased risk is due to the systemic immunosuppression caused by anti-rejection medications, which are indispensable for protecting against allograft loss. Our previous findings have established the efficacy of calcipotriol in combination with 5-FU in inducing an antitumor immunity against AKs in immunocompetent patients. This SCC risk reduction is accompanied by the induction of robust T cell immunity and TRM cell formation against AKs. Calcipotriol is a FDA-approved low calcemic vitamin D analogue for the treatment of psoriasis. Topical 5-FU is a standard chemotherapy for AKs. Based on our previous findings demonstrating the synergistic impact of TSLP induction by calcipotriol in combination with the cytotoxic effects of 5-FU that leads to a robust T cell immunity against early skin carcinogenesis in immunocompetent patients, we aim to determine whether this efficacy is maintained in OTRs on immunosuppressive therapy and its effect on SCC prevention in long-term after transplantation.

Study Type

Interventional

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Massachusetts
      • Boston, Massachusetts, United States, 02215
        • Massachusetts General Hospital
    • Missouri
      • Saint Louis, Missouri, United States, 63108
        • Barnes-Jewish Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

50 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Solid organ transplant recipients with AKs and a history of non-melanoma skin cancer in one year prior to enrollment into the study. The target population includes post-transplant OTRs.
  • Presence of four to fifteen clinically typical, visible, and discrete AKs in 25 cm2 on any of the four anatomical sites: scalp, face, right upper extremity and left upper extremity.
  • The period between the first visit and transplantation is minimum 4 weeks and maximum 12 months.
  • Age of at least 18 years
  • Ability and willingness of the patient to participate in the study (Informed consent will be obtained)

Exclusion Criteria:

  • Treatment area is within 5 cm of an incompletely healed wound or a suspected basal cell or squamous cell carcinoma.
  • Treatment area contained hypertrophic and hyperkeratotic lesions, cutaneous horns, or lesions that had not responded to repeated cryotherapy.
  • Patients with history of hypercalcemia or vitamin D toxicity.
  • Female participants must be either of non-reproductive potential (i.e., post-menopausal by history of age > 50 years old and no menses for >1 year without an alternative medical cause; OR history of hysterectomy, history of bilateral tubal ligation, or history of bilateral oophorectomy) OR must have a negative serum pregnancy test within 7 days prior to study registration.
  • Patients with DPD (Dihydropyrimidine Dehydrogenase) deficiency (due to their higher risk of 5-FU toxicity).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Topical Calcipotriol ointment plus 5-Fluorouracil cream
Topical Calcipotriol 0.0025% ointment plus 5-Fluorouracil 2.5% cream will be administered by the participants to their face, scalp and upper extremities twice a day for 6 consecutive days.
5-FU is a chemotherapy that causes the death of proliferating tumor cells. Topical preparation of this drug is being used.
Other Names:
  • Topical 5-fluorouracil
Calcipotriene is a form of vitamin D. It works by inducing thymic stromal lymphopoietin cytokine expression in the skin.
Other Names:
  • Topical Calcipotriene ointment
Placebo Comparator: Topical vaseline plus 5-Fluorouracil 2.5% cream
Topical Vaseline plus 5-Fluorouracil 2.5% cream will be administered by the participants to their face, scalp and upper extremities twice a day for 6 consecutive days.
Placebo
Other Names:
  • Petrolatum
5-FU is a chemotherapy that causes the death of proliferating tumor cells. Topical preparation of this drug is being used.
Other Names:
  • Topical 5-fluorouracil

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The changes in baseline number of AKs on treated anatomical sites in post-transplant OTRs
Time Frame: 8 weeks after treatment
The changes in baseline number of AKs on treated anatomical sites in post-transplant OTRs quantified based on participants' medical records and photographs in test versus control group
8 weeks after treatment

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The changes in the number of SCC on treated anatomical sites in post-transplant OTRs
Time Frame: 1, 2 and 4 years after treatment
The changes in number of SCC on treated anatomical sites in post-transplant OTRs quantified based on participants' medical records, photographs and pathology results in test versus control group
1, 2 and 4 years after treatment
The changes in the magnitude of TSLP, CD3+, CD4+ and CD8+ TRM cell infiltrates in in the AK and normal skin after transplantation
Time Frame: at one day after 6-day treatment and at one year post-treatment
The changes in the magnitude of TSLP, CD3+, CD4+ and CD8+ TRM cell infiltrates in OTRs after transplantation compared to before transplantation in test versus control group.
at one day after 6-day treatment and at one year post-treatment
The changes in immune infiltrate (CD3+, CD4+ and CD8+ TRM cell) in any SCC that develops after treatment
Time Frame: up to 4 years after treatment
The changes in immune infiltrate in any SCC that develops after calcipotriol plus 5-FU versus Vaseline plus 5-FU treatment for up to 4 years post-transplant.
up to 4 years after treatment
Number of Participants with Treatment Related Adverse Events
Time Frame: From the start of treatment until 30 days after the end of treatment, up to 2 months
Adverse events will be assessed including any local skin reactions like itching and rash
From the start of treatment until 30 days after the end of treatment, up to 2 months
Number of participants with any proven rejection of the graft in OTRs
Time Frame: From the start of treatment until 30 days after the end of treatment
Number of participants with any biopsy proven acute rejection of the graft after treatment with calcipotriol plus 5-FU compared to test group.
From the start of treatment until 30 days after the end of treatment
The changes in erythema extent and intensity scores (0-4) of the treated anatomical sites
Time Frame: at one day after the completion of a 6-day treatment
The changes in erythema extent and intensity scores of the treated anatomical sites in test versus control group in post-transplant OTRs. Treated skin will be evaluated for any sign of irritation including erythema, crusting or ulceration using a clinical erythema scale. (No erythema=0, mild erythema=1, sever erythema with minimal scaling=2, sever erythema with significant scaling=3, sever erythema with scaling, crusting, itching and burning=4)
at one day after the completion of a 6-day treatment
The changes in response to treatment (AKs number) between treated anatomical sites
Time Frame: at one day after treatment and one year after treatment
The changes in response to topical calcipotriol plus 5-FU versus Vaseline plus 5-FU between treated anatomical sites
at one day after treatment and one year after treatment
The changes in SCC prevention (number of SCC) on the untreated anatomical sites (i.e., trunk and lower extremities) of OTRs
Time Frame: at one, two and four years post-transplant.
The changes in efficacy of a twice daily 6-day treatment with topical calcipotriol plus 5-FU (test) versus Vaseline plus 5-FU (control) before transplantation in preventing SCC on the untreated anatomical sites (i.e., trunk and lower extremities) of OTRs.
at one, two and four years post-transplant.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Shadmehr Demehri, MD/PHD, Massachusetts General Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

January 1, 2026

Primary Completion (Estimated)

January 1, 2029

Study Completion (Estimated)

January 1, 2030

Study Registration Dates

First Submitted

November 4, 2020

First Submitted That Met QC Criteria

November 21, 2020

First Posted (Actual)

November 24, 2020

Study Record Updates

Last Update Posted (Actual)

May 7, 2025

Last Update Submitted That Met QC Criteria

May 5, 2025

Last Verified

November 1, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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