NCT05546827 Preoperative Radiotherapy and Immunotherapy for Sinonasal and Anorectal Mucosal Melanoma

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 40 participants in total. It began in 2022-10-31 with a primary completion date of 2028-07-31.

Brief Summary

The goal of this clinical research study is to learn if pre-operative radiation therapy after starting immune checkpoint inhibition can help patients with sinonasal or anorectal melanoma have better outcomes

Eligibility Criteria

Inclusion Criteria For all patients * Evidence of mucosal tumor on clinical exam or imaging. * No evidence of distant metastasis * Patients must be planned for combination immunotherapy (e.g. ipilimumab and nivolumab or nivolumab and relatlimab). * ECOG performance status ≤3. * Age ≥18 years because melanoma is extremely rare in patients \<18 years of age and RT is considered high risk in this population due to risk of secondary malignancy and potentially growing tissues that may be adversely impacted by RT. * RT is a known teratogen. For this reason women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. (refer to MDA Policy CLN 1114) This includes all female patients, between the onset of menses and 55 years unless the patient presents with an applicable exclusionary factor which may be one of the following: * Postmenopausal (no menses in greater than or equal to 12 consecutive months). * History of hysterectomy or bilateral salpingo-oophorectomy. * Ovarian failure (Follicle Stimulating Hormone and Estradiol in menopausal range, who have received Whole Pelvic Radiation Therapy). * History of bilateral tubal ligation or another surgical sterilization procedure. Approved methods of birth control are as follows: Hormonal contraception (i.e. birth control pills, injection, implant, transdermal patch, vaginal ring), Intrauterine device (IUD), Tubal Ligation or hysterectomy, Subject/Partner post vasectomy, Implantable or injectable contraceptives, and condoms plus spermicide. Not engaging in sexual activity for the total duration of the trial and the drug washout period is an acceptable practice; however periodic abstinence, the rhythm method, and the withdrawal method are not acceptable methods of birth control. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately. * Men treated or enrolled on this protocol must also agree to use adequate contraception prior to the study, for the duration of study participation, and 6 months after completion of RT. * Patients with a prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with their ability to safely receive the study interventions are eligible for this trial. * Ability to understand and the willingness to sign a written informed consent document. For Arm 1 patients (sinonasal melanoma) * Patients must have histologically or cytologically confirmed melanoma involving the nasal cavity and/or paranasal sinuses. * Patients must be evaluated by Head and Neck Surgery to establish surgical status as resectable, borderline resectable or unresectable. * Patients must have a baseline skull base MRI unless contraindicated by medical or financial toxicity. For Arm 2 patients (anorectal melanoma) * Patients must have histologically or cytologically confirmed melanoma involving the anorectal canal. * Patients must be evaluated by the surgical team to establish primary tumor surgical status as: (1) resectable with sphincter sparing approach, (2) resectable with abdominoperineal resection, or (3) unresectable/requiring surgery greater than abdominoperineal resection. * Patients must have a baseline rectal MRI unless contraindicated by medical or financial toxicity. 2.2 Exclusion Criteria * Previous radiation therapy to the planned target area (sinonasal for Arm 1 and anorectal for Arm 2). * Metastatic disease * Pregnant women are excluded from this study because RT is a known teratogen. * Patients who are less than 18 years of age because melanoma is extremely rare in this population and the treatment agent is a known carcinogen.

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