The growing appetite comes as record numbers of developing world governments face debt pressures due to higher global interest rates.
There have been around 140 over the past 35 years, but even including last month's super-sized Galapagos deal they have only involved around $5 billion of debt altogether.
The top-level attendees will be urged to do more, not only debt swaps, but also by providing foreign exchange guarantees and automatic debt-payment breaks for countries hit by climate-related disasters.
"Seeing something that has a group of countries involved would be amazing," Issa said.
Ecuador says it is eyeing another transaction to capitalise on the halo effect from the Galapagos deal.
Persons:
Ramzi Issa, Charles Darwin's, Issa, Ilan Goldfajn, Scott Nathan, Nathan, Emmanuel Macron, Mia Mottley, Suisse's Issa, Simon Jessop, Sharon Singleton
Organizations:
Ecuador, Credit Suisse, Inter, American Development Bank, U.S . International Development Finance Corporation, Reuters Graphics, Thomson
Locations:
Ecuador, Belize, Barbados, Gabon, Paris, Sri Lanka, Indian, Colombia, Costa Rica, Panama, Kenya, Mozambique, Tanzania, Seychelles