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Study identifier: NCT05955924 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

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

Condition: Non-melanoma Skin Cancer · Carcinoma, Squamous Cell · Carcinoma, Basal Cell  ·  Sponsor: Women's College Hospital

PhasePhase 3
Planned participants396
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

As patients live longer after receiving an organ transplant, there is a need to reduce the long-term side effects of the drugs used to prevent organ rejection. In particular, long-term use of these drugs increases the risk of skin cancer. Skin cancer is now a leading cause of illness and disfigurement after kidney, liver, heart, and lung transplantation. Given the increased risk and burden of skin cancer in transplant recipients, prevention is critical. Nicotinamide is a form of Vitamin B3 that has been shown to protect against skin cancer in the general population. However, it is unclear whether nicotinamide is effective among immune-suppressed transplant recipients. Investigators will conduct a clinical trial involving multiple transplant centres in Canada to evaluate whether oral nicotinamide (500 mg twice daily) is effective and safe for preventing skin cancer. Investigators will recruit 396 high-risk adult kidney, liver, heart, and lung transplant patients who have previously had at least one skin cancer. Patients will receive nicotinamide or sham tablets for up to 4 years. The results will inform efforts to improve the long-term health of transplant recipients.

This description comes directly from the study's public registry record.

Talk to the study team

Stephanie Jewell, BSc. Hons  ·  416 351-3732  ·  sprintr@wchospital.ca

Always discuss trial participation with your own doctor first.

Locations (7)

University of CalgaryCalgary, Alberta, CanadaNot Yet Recruiting
University of AlbertaEdmonton, Alberta, CanadaRecruiting
Vancouver General HospitalVancouver, British Columbia, CanadaRecruiting
St. Paul's HospitalVancouver, British Columbia, CanadaRecruiting
The Ottawa HospitalOttawa, Ontario, CanadaRecruiting
Toronto General HospitalToronto, Ontario, CanadaRecruiting
Women's College HospitalToronto, Ontario, CanadaRecruiting

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Source record: clinicaltrials.gov/study/NCT05955924