The trend: Cancer patients trust fellow patients more than clinicians for day-to-day guidance on living with cancer, but rely on their medical team for treatment and care decisions, according to a recent Mesothelioma.com survey of about 200 cancer patients, survivors, and caregivers.

Patients trust fellow patients most for:

• Practical tips for daily life during treatment: 55% trust fellow patients vs. 18% for their medical team.
• Mental health and emotional support: 43% trust fellow patients vs. 21% for their medical team.

Patients trust their medical team most for:

• Treatment decisions: 86% trust their medical team vs. 2% for fellow patients
• Clinical trial information: 84% trust their medical team vs. 2% for peers.

Why it matters: Patients with serious illnesses seek out connections with people who share their experiences and are going to online channels for education and support.

• Survey respondents report spending time engaging with cancer content across Facebook groups and Reddit mostly, but also AI chatbots, Instagram, YouTube, TikTok, and podcasts, per Mesotheliomia.com. Some 39% say posts from online cancer creators helped them feel more prepared for a procedure.
• Another 30% say a creator understood their experience better than close family or friends.
• And 20% first learned about a treatment option or clinical trial through peer content before discussing it with their medical team.

Implications for pharma brands and marketers: Even as clinicians drive treatment decisions, condition-specific online communities and content creators can shape patients' understanding of what it's actually like to live with cancer.

Oncology drugmakers can tap into these online peer conversations to identify what patients are really asking, using those insights both to equip clinicians for visits and to build authentic partnerships with trusted patient communities. For example, healthcare professional materials could anticipate common patient questions sparked by social media and online forums, such as treatment eligibility, reported side effects, or alternative cures, and equip clinicians with resources to address them. Meanwhile, direct drug promotion by creators is less effective and not how cancer patients currently rely on their peers. Instead, marketers should partner with patient advocates to create content about real-world guidance—such as treatment prep, work balance, and emotional coping—where peer credibility is of high value to cancer patients.

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