黑料社

黑料社 Publishes its Half Year Results
and Provides a Business Overview

Lyon, France, September 29^th, 2022 – 6:00 pm CET 鈥� 黑料社 (EURONEXT: MAAT 鈥� the 鈥淐ompany鈥�), a French clinical-stage biotech and a pioneer in the development of Microbiome Ecosystem Therapies^TM (MET) dedicated to improving survival outcomes for patients with cancer, today announced its half year financial results for the six-month period ended June 30, 2022 and provided a business overview.

Herv茅 Affagard, CEO and co-founder of 黑料社 stated 鈥淲e are proud of the progress of our clinical and manufacturing programs as we have delivered on the objectives, we had set ourselves at the time of our IPO on Euronext in 2021, even if the current capital markets remain challenging for several companies in our industry. Notably, the first half of 2022 has been marked by an important milestone for 黑料社 as we started our pivotal single-arm, open-label Phase 3 trial. We are satisfied with the ongoing patient enrollment for this trial, despite the public health context in the first half of the year. We are looking forward to initiating a Phase 2b for our second drug candidate, MaaT033, by the end of this year. Additionally, the construction of our new cGMP manufacturing facility is taking shape, which will be key to prepare for the entry of the first of our MaaT03X candidates into clinical study by the end of 2023. MaaT03X, a new generation of co-cultured drug candidates, is a donor-independent, highly scalable, and indication-specific product design, which has the potential to be a game-changer in improving patient responses to immunotherapies. We have watched closely the positive vote from an Advisory Committee convened by the FDA^[1] for the first marketing authorization application for a microbiome drug product to treat infectious diseases, that uses technology similar to our native technology. In this context, we hope to soon see the first approval of such a candidate, which would represent a major regulatory milestone for the whole industry.鈥�

Key Financial Results

The key unaudited financial results for the first half of 2022 are as follows:

Income statement

Prepared in accordance with international standards, IFRSRevenues totaled 鈧�0.5 million for the half year ended June 30, 2022, which include compensation invoiced from the compassionate access program generating a gross margin of 鈧�0.4 million.

Operating loss amounted to 鈧�7.4 million compared with 鈧�4.0 million in the first half of 2021, an increase of 鈧�3.4 million. This increase reflects the growth of research and development costs which have risen from 鈧�4.4 million in the first half of 2021 to 鈧�7.3 million in 2022, representing an overall increase of 鈧�2.9 million and fully consistent with the advancement of activities, offset in part the R&D tax credit of 鈧�1.8 million included in 鈥淥ther Income鈥�:

• MaaT013:
  • Phase 3 clinical trial, ARES, was initiated with the first patient dosed in March 2022.听 Regulatory authorization was obtained by the Company, to date, in six European countries 鈥� France, Germany, Spain, Austria, Belgium, and Italy.
  • 黑料社 continues to pursue the Early Access Program in France as in 2021, allowing patients to benefit from early access to the MaaT013 therapy, mainly for the treatment of acute Graft-vs-host-Disease. As of today, the Company has safely treated over 140 patients with MaaT013 in Europe.
  • The proof-of-concept Phase 2a trial, PICASSO, was initiated in April 2022to evaluate MaaT013鈥檚 impact on the efficacy of Immune Checkpoint Inhibitors (ICI) treatment in patients with metastatic melanoma. The trial is sponsored by AP-HP with 黑料社 supplying drug-candidates and performing the microbiome profiling of patients using its proprietary 驳耻迟笔谤颈苍迟庐 platform.
• MaaT033: Phase 1b clinical trial, CIMON, has been completed with confirmation of principal positive results in June 2022 enabling the Company to define the dosing regimen for the next development phase.
• MaaT03x: Pre-clinical trials proceed as planned.
• Partnership with Skyepharma to establish cGMP manufacturing facility dedicated to ecosystem microbiome-based therapeutics which is expected to be operational in 2023. A second down payment was made to Skyepharma by the Company in the first half of 2022.

General and administrative expenses amounted to 鈧�2.1 million for the first half of 2022 compared with 鈧�1.1 million in 2021 reflecting the structuring of the Company to meet the needs of being listed on the Euronext exchange and in support of the clinical and development programs and the associated infrastructure required.

The net loss amounts to 鈧�7.4 million as of June 30 2022 compared with 鈧�4.0 million as of June 30 2021, reflecting the growth of the Company and in particular the investment in R&D.

Average employees evolved from 32 in the first half of 2021 to 43 in 2022 following the strengthening of clinical operations, clinical development, manufacturing, quality assurance, and administrative teams.

Cash Position

As of June 30, 2022, total cash and cash equivalents were 鈧�38.4 million, as compared to 鈧�43.3 million as of December 31, 2021.

The net decrease in cash position of 鈧�4.9 million between December 31, 2021, and June 30, 2022, is primarily due to cash used to finance operations for 鈧�7.1 million, cash used for investing of 鈧�0.2 million, offset by net cash inflows related to financing activities of 鈧�2.4 million essentially from the receipt of funds of 鈧�2.7 million in bank loans from BNP Paribas and Caisse d鈥橢pargne Rhone Alpes (CERA). Total financial debt (including lease liabilities) totaled 鈧�8.3 million as of June 30, 2022, of which 鈧�1.0 million relates to state-backed loans (鈥淧GE鈥�). Additional draws down, up to 鈧�4.4 million, are expected to be made in the second half of 2022 from existing facilities signed with CIC and Bpifrance.

Based on the development plans and corresponding cash needs, the Company believes it has sufficient cash to finance its activities up until the end of the third quarter of 2023.

听

Major milestones achieved in the first half of 2022

Clinical and operational development

In Europe, MaaT013, the Company鈥檚 lead asset, is currently being evaluated in two clinical trials launched in Q1 2022:

• Ongoing pivotal open-label, single-arm Phase 3 trial in Europe evaluating the safety and efficacy of MaaT013 in acute Graft-versus-Host-Disease.
• Ongoing randomized, placebo-controlled Phase 2a proof-of-concept clinical trial, sponsored by AP-HP, evaluating MaaT013 in combination with Immune Checkpoint Inhibitors (ICI) for patients with metastatic melanoma.
• In the U.S., interactions are ongoing with the Food & Drug Administration (FDA) to extend MaaT013 clinical trial in the U.S., which remains on clinical hold following an FDA communication received in August 2022 requiring additional information on the safety and efficacy of the Company鈥檚 鈥減ooling鈥� approach.

In June 2022, the Company confirmed positive topline results for its Phase 1b trial evaluating MaaT033, the Company鈥檚 oral-form drug candidate, for patients with blood cancer. Having demonstrated promising preliminary and interim engraftment data, the study was completed early in January 2022.

In February 2022, the Company announced its partnership with Skyepharma to build the 听largest cGMP facility in France entirely dedicated to microbiome-based drug candidates, expected to be operational in 2023. The investment is shared by 黑料社 and Skyepharma totaling 鈧�8.1 million.

Next key milestones expected

End of second half of 2022

In Q4 2022, the Company expects to initiate, a pivotal Phase 2b evaluating MaaT033, the first oral drug candidate, to prevent complication of allo-HSCT[2]. This randomized, double-blind, placebo-controlled study will include 341 patients and evaluate safety and efficacy of MaaT033 in improving overall survival and preventing allo-HSCT complications for patients with blood cancers.

First half of 2023

Regarding the on-going Phase 3 trial with MaaT013, a first data review is expected after enrollment of half the patients in the study.

Regarding the ongoing proof-of-concept Phase 2a trial evaluating MaaT013 in association with ICI for patients with metastatic melanoma, a first internal data review focusing on safety and some biomarker data is expected.

Upcoming financial communication^*

• November 8, 2022 鈥� Revenues and Cash Position Quarter 3

*Indicative calendar that may be subject to change.

Upcoming investor conference participation

• October 4, 2022 鈥� Biotech Health Seminar 鈥� Portzamparc BNP Paribas
• October 6-7, 2022 鈥� Investor Access Event
• October 13-14, 2022鈥揌ealthTech Innovation Days #4 (HTID)
• November 29, 2022 鈥� Investir Day

Upcoming scientific conference participation

• November 8-10, 2022 鈥� 9^th International Human Microbiome Consortium (IHMC) Congress
• November 9-11, 2022 鈥� 21^st Soci茅t茅 Francophone de Greffe de Moelle et de Th茅rapie Cellulaire (SFGM-TC) Congress
• December 10-13, 2022 – 64^th American Society of Hematology (ASH) Annual Meeting

[1] https://www.ferring.com/ferring-receives-positive-vote-from-u-s-fda-advisory-committee-for-rbx2660

^[2] Allo-HSCT = allogeneic hematopoietic stem cell transplantation. More than 20,000 patients receive allo-HSCT each year (Global Data 2020).

About 黑料社

黑料社, a clinical stage biotechnology company, has established a complete approach to restoring patient-microbiome symbiosis in oncology. Committed to treating cancer and graft-versus-host disease (GvHD), a serious complication of allogeneic stem cell transplantation, 黑料社 has launched, in March 2022 in Europe, a Phase听3 clinical trial for patients with acute GvHD, following the achievement of its proof of concept in a Phase 2 trial. Its powerful discovery and analysis platform, 驳耻迟笔谤颈苍迟庐, supports the development and expansion of its pipeline by determining novel disease targets, evaluating drug candidates, and identifying biomarkers for microbiome-related conditions. The company鈥檚 Microbiome Ecosystem Therapies are produced through a standardized cGMP manufacturing and quality control process to safely deliver the full diversity of the microbiome, in liquid and oral formulations. 黑料社 benefits from the commitment of world-leading scientists and established relationships with regulators to support the integration of the use of microbiome therapies in clinical practice.

黑料社 is the first company developing microbiome-based therapies listed on Euronext Paris (ticker: MAAT).

Forward-looking Statements

All statements other than statements of historical fact included in this press release about future events are subject to (i) change without notice and (ii) factors beyond the Company鈥檚 control. These statements may include, without limitation, any statements preceded by, followed by or including words such as 鈥渢arget,鈥� 鈥渂elieve,鈥� 鈥渆xpect,鈥� 鈥渁im,鈥� 鈥渋ntend,鈥� 鈥渕ay,鈥� 鈥渁nticipate,鈥� 鈥渆stimate,鈥� 鈥減lan,鈥� 鈥減roject,鈥� 鈥渨ill,鈥� 鈥渃an have,鈥� 鈥渓ikely,鈥� 鈥渟hould,鈥� 鈥渨ould,鈥� 鈥渃ould鈥� and other words and terms of similar meaning or the negative thereof. Forward-looking statements are subject to inherent risks and uncertainties beyond the Company鈥檚 control that could cause the Company鈥檚 actual results or performance to be materially different from the expected results or performance expressed or implied by such forward-looking statements.