Facebook and Instagram are the most powerful awareness channels for clinical trial recruitment — and the most misused. A campaign set up with broad demographics and clinical ad copy will spend your budget without producing qualified inquiries. A campaign built with precise targeting, patient-language creative, and a purpose-built landing page consistently outperforms. Here are the exact settings.
Campaign Objective: Lead Generation or Traffic (Not Awareness)
Use Lead Generation (for in-platform forms) or Traffic (for your external landing page). Avoid Reach and Awareness objectives — they optimize for the number of people who see your ad, not the number who take action. Reach is for brand building. Clinical trial recruitment needs conversion. Budget accordingly: if you use Lead Generation objective, Meta collects the name, phone, and email directly in the app (higher completion, lower quality). Traffic to your landing page produces lower click-through but higher-intent inquiries. Test both for your first trial and track which produces lower cost-per-screened-patient.
Audience Targeting: What to Use and What to Avoid
Build your audience around these parameters: Age range matching your trial’s eligibility criteria (add ±5 years buffer for people who may be caregivers). Location: 25–40 mile radius around your site with bid concentrations in your top ZIP codes. Detailed targeting: health-related interests relevant to your condition (example for diabetes: “diabetes,” “blood sugar,” “American Diabetes Association,” “healthy eating”). Behaviors: “Primary grocery buyer” and “health and wellness pages” often improve audience quality for chronic condition trials.
Do NOT target by “people with medical conditions” or use Custom Audiences built from health data — Meta explicitly prohibits targeting based on personal health, medical conditions, or related characteristics. Using prohibited targeting categories risks campaign disapproval or account suspension.
Audience size target: 100,000–500,000 for common conditions in a metro market. Below 80,000, you will exhaust your audience quickly and see frequency climb above 4 (same person seeing your ad 4+ times) within 2–3 weeks.
Ad Creative: Specifications and What Converts
Image ads: 1,200×628px for feed placement. Show a real person who looks like your target patient — not a doctor, not a lab, not stock imagery of pills. A 45-year-old woman with diabetes looking at her phone converts 2–3x better for a diabetes trial than a generic “medical” image.
Primary text (above image): 125 characters visible before “See More.” The opening line must create condition recognition: “Managing Type 2 diabetes in [city]?” or “Living with [condition] and looking for options?”
Headline (bold text below image): 40 characters max. “You May Qualify for a Paid Study” or “Free Screening — See If You Qualify.”
Description: 30 characters. “No cost. Compensation available.”
Call to action button: “Learn More” or “Sign Up” — not “Apply Now” (too aggressive for healthcare audiences who have not yet built trust).
Budget Allocation and Scaling Rules
Start with a daily budget of $30–50 per active ad set for the first 7 days. Do not touch the budget during this period — Meta’s algorithm needs 50 optimization events (clicks or leads) before it exits the learning phase. Scaling rule: once a campaign exits learning and you have 10+ inquiries, increase budget by no more than 20% every 5 days. Larger increases reset the learning phase and drop performance.
Expected benchmarks: Cost-per-click (to landing page): $0.80–2.50 for common chronic conditions. Cost-per-inquiry: $18–45. Cost-per-screened patient: $80–160. If cost-per-inquiry exceeds $60, diagnose the issue before increasing budget: check creative click-through rate (below 1% means the ad is not resonating), landing page conversion rate (below 15% means the landing page is losing patients), and audience size (below 80,000 means you are exhausting the audience).
Your Campaign Launch Checklist
- Create campaign with Lead Generation or Traffic objective
- Build audience with age range, radius, and health-related interest targeting
- Create 3 ad variations (different images, same copy) to test creative performance
- Verify landing page loads in under 3 seconds on mobile
- Set daily budget at $40/day and do not touch for 7 days
- Install Meta Pixel on your landing page and thank-you page to track conversions
- Set a calendar reminder to review performance on Day 8