I’m helping an PE client understand market penetration rate for a phase 3 drug product. I need to create a quant market research survey for the study, what should the HCP n-size be and why? What questions besides potential future use would be helpful to ask? I’ve done chatgpt but appreciate your expertise for validation.

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For a Phase 3 drug quant survey, target ~200–300 HCPs (100–200 per key specialty, minimum 50–75 per subgroup) to achieve statistically valid, investment-grade insights. Beyond asking about likelihood of future use, probe current treatment patterns, unmet needs, perceived differentiation, adoption drivers, and barriers such as safety, payer restrictions, and logistics. Include questions on economic/access considerations (formulary, prior auth, patient cost), prescribing context (academic vs. community, guideline influence, patient demand), and adoption trajectory (share of patients likely to receive the drug in years 1, 3, and 5, switching vs. new starts, and time to peak uptake). This ensures robust penetration estimates grounded in real-world behavior rather than just stated intent.

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I would send the fee to Chat GPT 😆

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lol penetration

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