HIMUKA AM AUSTRALIA ANNOUNCES INITIATION OF HM201
PHASE 1 CLINICAL TRIAL
17 DECEMBER 2021
Himuka AM Australia Pty Ltd. today announced that it initiated a Phase 1 clinical
trial of HM201, a novel adrenomedullin based peptide drug candidate developed
for the treatment of Inflammatory bowel disease (IBD).
This clinical trial is being performed at the clinical site operated by Nucleus
Network in Queensland, Australia.
“HM201 is a novel peptide drug candidate that has the potential to address theunmet need of mucosal healing in IBD patients. We are very excited about thisfirst-in-human study as it is the first step in confirming the improvements we havemade to adrenomedullin,” said Hiroshi Shinjo, Chief Executive Officer of Himuka
AM Australia. "In Australia we have access to an excellent drug development
environment to conduct clinical trials and we would like to express our gratitude
to the many people who have and are continuing to make this trial possible.”
The Phase 1 clinical trial of HM201 is a double-blind, placebo-controlled,ascending dose, multi-cohort study in healthy subjects consisting of singleascending dose and multiple ascending dose cohorts. Himuka expects to receive
the results from the Phase 1 clinical trial in the fourth quarter of 2022.

About HM201
HM201 is a novel peptide drug candidate created by improving the bioactive
peptide adrenomedullin.
Adrenomedullin contributes to the regulation of homeostasis in the human bodythrough the action of regeneration of epithelial and endothelial cells,angiogenesis, and anti-inflammation. In the Phase 2a clinical trial ofadrenomedullin for steroid-resistant ulcerative colitis (UC) conducted by
University of Miyazaki, Japan, they observed the complete remission at 8 weeks

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in patients with steroid-resistant UC receiving a certain dose of adrenomedullin.
Himuka believes that HM201 has the same pharmacological effects asadrenomedullin and is developing HM201 with the belief that it will contribute to
the healing of the intestinal mucosa in suffering patients.
About Himuka
Himuka AM Australia Pty Ltd. is an Australian company which is established by
Himuka AM Pharma Corp. for the development of HM201 in Australia.
Himuka AM Pharma Corp. is a multi-asset clinical-stage biopharmaceuticalcompany focused on developing novel treatments in unmet need areas including
refractory Inflammatory bowel disease.
Regarding Himuka's first candidate, adrenomedullin (HM101), several Phase 2a
investigator-initiated clinical trials have been conducted under the programs of
the Japan Agency for Medical Research and Development.
Himuka is also advancing HM201, its novel peptide drug candidate for thetreatment of diseases through the improvement of the barrier function ofepithelial or endothelial cells, and the function of angiogenesis.
Himuka AM Pharma Corp. is selected to be part of the J-Startup program by Japan
External Trade Organization (JETRO). JETRO’s mentorship and business support
helps promote Himuka’s projects to an international audience.
For more information, visit https://www.himuka-am.com/

Forward-Looking Statements
This press release may contain forward-looking statements.
Statements contained in this press release concerning plans, predictions, andstrategies to improve future performance (“Forward-Looking Statements”) arebased on information currently available to Himuka's management, andinevitably involve a certain element of risk and uncertainties.

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Actual results may therefore differ from those in the Forward-Looking Statements.
Therefore, forward-looking statements should not be relied upon as representing
Himuka's views as of any date after the date of this press release.

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