A Study of GR1014 Cutaneous Gel for the Prevention of Skin Reactions Caused by Radiation Therapy for Breast Cancer
Condition(s) studied
Investigational drug(s) / intervention(s)
GR1014-CG 2.4%: Topical gel formulation of amifostine thiol (GR1014) at 25 mg/mL
Vehicle Gel: The same topical formulation as GR1014-CG without the active ingredient amifostine thiol
Radiation Therapy: Ultra hypofractionated RT, 26 Gy in 5 daily fractions (5.2 Gy) given over 1 week on the whole breast
GR1014-CG 4.7%: Topical gel formulation of amifostine thiol (GR1014) at 50 mg/mL
Study summary
This clinical trial is testing a new skin gel called GR1014-CG to evaluate its safety and see if it can help prevent or reduce skin irritation (such as redness, soreness, etc.) caused by radiation therapy (RT) after breast-conserving surgery for early-stage breast cancer. The study is for women aged 18 and older who have had surgery to remove a breast tumor and need radiation therapy.
The main goals of the study are to find out:
* If GR1014-CG is safe to use
* If the gel can prevent or lower the severity of skin irritation caused by RT.
During the study participants will,
* Be randomly assigned to use one of two strengths of GR1014-CG (4.7% or 2.4%) or a placebo gel (a gel with no active drug).
* Apply the gel to the breast before each radiation session for 5 days.
* Visit the clinic once a week for 4 weeks to check their skin and overall health. At the end of the 4th week, if there are still signs of irritation participants will come to the clinic for a checkup 2 weeks after, and then again 2 weeks after if the irritation is still observed.
* Keep a diary to record any pain or itching they may feel.
Eligibility
Primary outcome measure(s)
- Percentage of Participants with No Radiation Dermatitis as Assessed by CTCAE Latest Version (LV) (Grade of 0) — At any time between the first radiotherapy session and 4 weeks after the last one
As per CTCAE - Radiation Dermatitis: A finding of cutaneous inflammatory reaction occurring as a result of exposure to biologically effective levels of ionizing radiation. Grade 1: Faint erythema or dry desquamation; Grade 2: Moderate to brisk erythema; patchy moist desquamation, mostly confined to skin folds and creases; moderate edema; Grade 3: Moist desquamation in areas other than skin folds and creases; bleeding induced by minor trauma or abrasion; Grade 4: Life-threatening consequences; skin necrosis or ulceration of full thickness dermis; spontaneous bleeding from involved site; skin graft indicated; Grade 5: Death
Trial sites (4)
| Facility | City | Region | Status |
|---|---|---|---|
| Institut Bergonié | Bordeaux | France | |
| Centre Léon Bérard | Lyon | France | |
| Institut Gustave Roussy | Villejuif | France | |
| The Royal Marsden NHS Foundation Trust and The Institute of Cancer Research | Sutton | United Kingdom |
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
View NCT07192588 on ClinicalTrials.gov ↗ ← All trials in France