NCT06358677 Topical Tretinoin Prophylaxis for Anti-EGFR Induced Skin Toxicity in Patients With Solid Tumors

Eligibility & Interventions

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What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

In Phase 2, researchers evaluate early signs of effectiveness. You may be randomized to receive the active treatment or a comparator. Monitoring continues closely.

This trial targets 25 participants in total. It began in 2025-02-19 with a primary completion date of 2027-07.

Brief Summary

The goal of this clinical trial is to learn if using topical tretinoin will help patients with solid tumors who are experiencing an acneiform rash as a side effect of their treatment. Researchers will compare the use of tretinoin on one side of the face to the use of a placebo on the other side of the face to see if there is an impact.

Eligibility Criteria

Inclusion Criteria: * Participant aged ≥ 18 years * Histologically confirmed solid tumor. * Radiologically confirmed locally advanced or metastatic disease. * Eligible for and willing to receive treatment with panitumumab or cetuximab as standard-of-care. * ECOG Performance Status ≤ 2. * Adequate organ function as defined as: --Hepatic: * Total Bilirubin ≤ 1.5x institutional upper limit of normal (ULN) * AST(SGOT)/ALT(SGPT) ≤ 3 × institutional ULN ----Participants with liver metastases will be allowed to enroll with AST and ALT levels ≤ 5 x ULN. * Negative pregnancy test for participants who have not undergone surgical sterilization or shown evidence of post-menopausal status. The following age-specific requirements apply: --\< 50 years of age: * Amenorrheic for ≥ 12 months following cessation of exogenous hormonal treatments; and * Luteinizing hormone and follicle-stimulating hormone levels in the post-menopausal range for the institution; or * Underwent surgical sterilization (bilateral oophorectomy or hysterectomy). --≥ 50 years of age: * Amenorrheic for 12 months or more following cessation of all exogenous hormonal treatments; or * Had radiation-induced menopause with last menses \>1 year ago; or * Had chemotherapy-induced menopause with last menses \>1 year ago; or * Underwent surgical sterilization (bilateral oophorectomy, bilateral salpingectomy, or hysterectomy). * Participants of childbearing potential and participants with a sexual partner of childbearing potential must agree to use a highly effective method of contraception as described in Section 5.4.2. * Must have recovered from adverse effects of any prior oncologic treatment (e.g. prior surgery, radiotherapy, or other antineoplastic therapy). CTCAE adverse events less than or equal to grade 1 are acceptable. CTCAE adverse events grade 2 or greater may be acceptable as determined by an investigator with appropriate documentation. * Able to provide informed consent and willing to sign an approved consent form that conforms to federal and institutional guidelines. Exclusion Criteria: * Treatment with an anti-EGFR agent within 90 days of registration. * Pre-existing facial rash that per the treating investigator would preclude the ability to assess response to topical tretinoin. * The diagnosis of another malignancy within ≤ 2 years before study enrollment, except for those considered to be adequately treated with no evidence of disease or symptoms and/or will not require therapy during the study duration (i.e., basal cell or squamous cell skin cancer, carcinoma in situ of the breast, bladder or of the cervix, or low-grade prostate cancer with Gleason Score ≤ 6). * Any other condition that would, in the Investigator's judgment, contraindicate the participant's participation in the clinical study due to safety concerns or compliance with clinical study procedures. * Systemic active infection including tuberculosis (clinical evaluation that includes clinical history, physical examination, radiographic findings, and TB testing in line with local practice), hepatitis B (known positive HBV surface antigen (HBsAg) result), or hepatitis C. --Note: Participants with a past or resolved HBV infection (defined as the presence of hepatitis B core antibody \[anti-HBc\] and absence of HBsAg) are eligible. Participants positive for hepatitis C (HCV) antibody are eligible only if polymerase chain reaction is negative for HCV RNA. * Medical, psychiatric, cognitive, or other conditions that may compromise the participant's ability to understand the participant information, give informed consent, comply with the study protocol or complete the study. * Known prior severe hypersensitivity to investigational product or any component in its formulations (CTCAE v5.0 Grade ≥ 3). * Participants taking prohibited medications as described in Section 6.8.2. A washout period of prohibited medications for a period of at least five half-lives or as clinically indicated should occur before the start of treatment.

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