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Search / Trial NCT05955924

Nicotinamide Chemoprevention for Keratinocyte Carcinoma in Solid Organ Transplant Recipients - Pivotal Trial

Launched by WOMEN'S COLLEGE HOSPITAL · Jul 13, 2023

Trial Information

Current as of June 26, 2025

Recruiting

Keywords

ClinConnect Summary

This clinical trial is studying whether a form of Vitamin B3 called nicotinamide can help prevent skin cancer in patients who have received organ transplants, such as kidney, liver, heart, or lung transplants. Many of these patients are at a higher risk of developing skin cancer due to the medications they take to prevent their bodies from rejecting the new organ. The trial will involve about 396 adult participants who have had at least one skin cancer in the past and are currently taking immune-suppressing medications.

To take part in the study, participants need to be at least 18 years old and must have received their organ transplant at least two years ago. They should also be able to attend follow-up visits during the trial. Those who qualify will receive either nicotinamide or a placebo (a pill that looks the same but contains no active medication) for up to four years. This trial aims to determine if nicotinamide is effective and safe for preventing skin cancer, which could greatly improve the long-term health and quality of life for organ transplant recipients.

Gender

ALL

Eligibility criteria

  • Inclusion Criteria:
  • Age ≥ 18 years old
  • Kidney, liver, heart, or lung transplant at least two years ago
  • History of at least one prior histologically-confirmed keratinocyte carcinoma or squamous cell carcinoma in situ
  • Currently immunosuppressed with a calcineurin inhibitor-based regimen (cyclosporine or tacrolimus)
  • Able to attend follow-up visits
  • Exclusion Criteria:
  • Use of nicotinamide or niacin (≥250 mg daily) within past 12 weeks
  • Untreated localized skin cancer at baseline (patient can enrol after skin cancer treatment)
  • Biopsy-confirmed acute rejection episode within the past 12 weeks
  • Active liver disease (high AST \>3 times or bilirubin \>1.5 times)
  • Severe kidney disease (estimated glomerular filtration rate \<20 mL/min/1.73 m2)
  • Solid organ or hematologic malignancy, invasive melanoma, Merkel cell carcinoma, or metastatic skin cancer within the past five years
  • Pregnancy or lactation
  • Need for ongoing carbamazepine or primidone
  • Allergy to nicotinamide or any ingredient of the vitamin or placebo capsules

About Women's College Hospital

Women's College Hospital (WCH) is a leading academic health sciences center in Toronto, dedicated to advancing women's health through innovative research, education, and exceptional patient care. As a progressive institution, WCH focuses on addressing the unique health needs of women, fostering groundbreaking clinical trials that contribute to the understanding and treatment of various health conditions. With a commitment to collaboration, WCH partners with various stakeholders, including academic institutions and healthcare organizations, to enhance the quality of care and improve health outcomes for women. Through its robust research programs, Women's College Hospital is at the forefront of shaping future healthcare practices and policies.

Locations

Toronto, Ontario, Canada

Vancouver, British Columbia, Canada

Ottawa, Ontario, Canada

Calgary, Alberta, Canada

Vancouver, British Columbia, Canada

Toronto, Ontario, Canada

Ottawa, Ontario, Canada

Edmonton, Alberta, Canada

Patients applied

0 patients applied

Trial Officials

An-Wen Chan

Principal Investigator

Women's College Hospital

Sang Joseph Kim

Principal Investigator

University Health Network, Toronto

Timeline

First submit

Trial launched

Trial updated

Estimated completion

Not reported