End of Year Fundraiser 2025

Your generous donation helps us tackle one of the most urgent health crises of our time. We have ambitious plans, and we rely on donations to make these plans a reality.

ClusterFree launched only a few months ago, but we are excited about the progress we've made so far with a small team and a shoestring budget. Among others, we:

• Launched our open letters, which have been signed by people like Prof. Peter Singer, Dr. Christopher Gottschalk, Scott Alexander, and many more.
• Started an official collaboration with Clusterbusters.
• Gained the support of a member of a US state legislature.
• Started conversations with CH advocates in multiple countries (most recently India, Denmark, and New Zealand).
• Are engaging with entrepreneurs and philanthropists interested in bringing DMT to market.
• Developed a preliminary idea for a new, legal abortive treatment that could be highly effective (potentially also for migraines).
• Started developing phenomenology-based, patient-centric surveys to test various hypothesis for the underlying mechanism of action that psychedelics exert on this condition.

Donations at this early stage would help us hire a second teammate to accelerate our efforts.

We believe ClusterFree is a great donation opportunity for people who care about relieving the most intense human suffering today. Cluster headaches represent a major health crisis even in developing countries, and we are far from having effective treatments widely available. Help us change that.

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"Your cluster headache work is superb and admirable - I signed with pleasure." - Robert Lawrence Kuhn

"I appreciate your work on this important issue." - Prof. Peter Singer

"clusterfree.org is really well put together, with the most important info easily accessed and well focused IMO - a great, appreciated resource!" - Clusterbusters forum user