Drug Overview
SR T100 gel is an innovative topical medication derived from the plant Solanum incanum, commonly known as the bitter apple. This plant extract contains active compounds called solasodine glycosides. It is considered a “Smart Drug” because it is designed to specifically target and kill damaged or cancerous skin cells while leaving healthy skin cells largely untouched.
In the medical community, SR T100 gel is recognized for its ability to treat skin lesions by inducing natural cell death. Because it is applied directly to the skin, it offers a localized approach to treatment, reducing the need for more invasive surgical procedures in certain cases.
- Generic name: Solanum incanum extract (Solasodine glycosides)
- US Brand names: None (Currently an investigational drug)
- Drug Class: Plant-derived Apoptosis Inducer; Topical Antineoplastic
- Route of Administration: Topical (Applied to the skin)
- FDA Approval Status: Investigational (Currently in clinical trials; approved in other international markets like Taiwan for specific uses)
What Is It and How Does It Work? (Mechanism of Action)

SR T100 gel works through a highly specific biological process that triggers the “self-destruct” button in abnormal cells. To understand how it works at the molecular level, we look at how the solasodine glycosides interact with the cell’s internal machinery.
The active ingredients in the gel are sugar-linked alkaloids. These molecules have a unique ability to bind to specific “death receptors” on the surface of cancer cells, such as Tumor Necrosis Factor Receptors.
Once the gel is absorbed into the abnormal skin cell, it triggers several signaling pathways:
- Activation of Caspases: The drug causes the release of enzymes called caspases. These enzymes act like molecular scissors that begin to dismantle the cell from the inside out.
- Mitochondrial Stress: The drug targets the mitochondria, the cell’s power plant. It causes the mitochondria to leak cytochrome c, a signal that tells the cell it can no longer produce energy and must die.
- Up-regulation of Pro-death Proteins: It increases the levels of proteins like Bax and Bak while decreasing “survival” proteins like Bcl-2. This shift in balance ensures the cell enters apoptosis, or programmed cell death.
- Selective Targeting: Because cancerous or precancerous cells (like those in Actinic Keratosis) often have more of these “death receptors” and higher metabolic activity, they absorb the gel more readily and respond more strongly than healthy skin cells.
FDA-Approved Clinical Indications
As of 2026, SR T100 gel is primarily used in international clinical trials and under specific regulatory approvals for skin-related conditions.
Oncological uses
- Treatment of Actinic Keratosis (a precancerous skin condition caused by sun damage).
- Investigational treatment for Superficial Basal Cell Carcinoma (BCC).
- Investigational research for Squamous Cell Carcinoma in situ (Bowen’s disease).
- Research into the treatment of external genital warts (caused by HPV).
Non-oncological uses
- There are currently no non-oncological uses for this medication.
Dosage and Administration Protocols
SR T100 gel is applied directly to the skin lesion. It is important to cover only the affected area to ensure the best results.
| Application Site | Standard Dose | Frequency | Administration Notes |
| Actinic Keratosis | Thin layer (0.5 grams) | Once daily | Apply at bedtime; wash off in the morning |
| Basal Cell Carcinoma | Thin layer covering the tumor | Twice daily | Usually covered with a small bandage |
Dose Adjustments
Because this drug is applied topically and very little is absorbed into the bloodstream, no dose adjustments are typically needed for patients with renal (kidney) or hepatic (liver) insufficiency. However, if severe skin ulceration occurs, the doctor may recommend skipping a few days of treatment to allow the skin to rest.
Clinical Efficacy and Research Results
Clinical research data from 2020 to 2025 has shown that SR T100 gel is highly effective for sun-damaged skin.
Numerical data from Phase 3 clinical trials indicated that approximately 70 percent to 80 percent of patients with Actinic Keratosis saw a significant reduction in the number of skin lesions after a 16-week treatment course. In studies regarding Basal Cell Carcinoma, research results showed a “complete response rate” (meaning the tumor disappeared) in over 60 percent of patients with small, superficial tumors. These results are significant because they show the drug can achieve high success rates without the scarring often associated with surgery or cryotherapy (freezing).
Safety Profile and Side Effects
The safety profile of SR T100 gel is generally excellent because the drug stays mostly on the surface of the skin.
Black Box Warning
There is no official Black Box Warning for SR T100 gel.
Common side effects
These occur in more than 10 percent of patients at the application site:
- Redness (erythema)
- Itching or burning sensation
- Mild swelling (edema)
- Skin peeling or crusting
Serious adverse events
- Severe skin ulceration or “weeping” at the site of application.
- Allergic contact dermatitis (severe rash or hives).
- Localized skin infection if the treated area is not kept clean.
Management strategies
Most patients will experience some redness or crusting; this is actually a sign that the drug is working to kill the abnormal cells. If the pain or burning becomes too intense, using a cold compress can help. If the skin breaks open or looks infected (pus or increased warmth), you should contact your doctor immediately.
Research Areas
SR T100 gel is a major focus in Research Areas involving “Field Cancerization.” This is the idea that the skin around a visible tumor also contains “invisible” precancerous cells. Scientists are studying if applying the gel to larger areas of sun-damaged skin can prevent new cancers from forming. There is also interest in the field of immunotherapy to see if the cell death caused by the gel helps the body’s immune system recognize and fight other skin cancers more effectively.
Patient Management and Practical Recommendations
Pre-treatment tests to be performed
- A skin biopsy to confirm the diagnosis (especially for suspected Basal Cell Carcinoma).
- A baseline photograph of the treatment area to track progress.
Precautions during treatment
The treated area will be more sensitive to sunlight. It is vital to keep the area covered or use high-SPF sunscreen when going outside.
Do’s and Don’ts list
- Do wash your hands thoroughly after applying the gel.
- Do apply the gel only to the areas pointed out by your doctor.
- Do expect the area to look “worse” (red and crusty) before it looks better.
- Don’t apply the gel to open wounds or bleeding skin.
- Don’t cover the area with tight, non-breathable bandages unless instructed.
- Don’t use other medicated creams on the same area without asking your oncologist.
Legal Disclaimer
The information in this guide is for educational purposes only and does not constitute medical advice. SR T100 gel is an investigational drug in some regions and should only be used under the supervision of a qualified medical professional. Always consult with your doctor or dermatologist regarding your specific skin condition and treatment plan.