8-K
false000137469000013746902022-10-202022-10-20

 

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

 

FORM 8-K

 

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 20, 2022

 

 

Larimar Therapeutics, Inc.

(Exact name of Registrant as Specified in Its Charter)

 

 

Delaware

001-36510

20-3857670

(State or Other Jurisdiction
of Incorporation)

(Commission File Number)

(IRS Employer
Identification No.)

 

 

 

 

 

Three Bala Plaza East

 

Bala Cynwyd, Pennsylvania

 

19004

(Address of Principal Executive Offices)

 

(Zip Code)

 

Registrant’s Telephone Number, Including Area Code: (844) 511-9056

 

 

(Former Name or Former Address, if Changed Since Last Report)

 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:


Title of each class

 

Trading
Symbol(s)

 


Name of each exchange on which registered

Common Stock, par value $0.001 per share

 

lrmr

 

NASDAQ Global Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

 

 


Item 8.01 Other Events.

On October 20, 2022, the Company posted on its website an updated slide presentation, which is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference. Representatives of the Company will use the presentation in various meetings with investors, analysts and other parties from time to time.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

 

Below is a list of exhibits included with this Current Report on Form 8-K.

 

Exhibit
No.

 

Document

99.1

 

Larimar Therapeutics, Inc. Corporate Presentation, dated October 20, 2022*

104

 

Cover Page Interactive Data File (embedded within the Inline XBRL document)

 

*Filed herewith.

 


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 

 

 

Larimar Therapeutics, Inc.

 

 

 

 

Date:

October 20, 2022

By:

/s/ Carole S. Ben-Maimon, M.D.

 

 

 

Name: Carole S. Ben-Maimon, M.D.
Title: President and Chief Executive Officer

 


Slide 1

October 2022 Larimar Therapeutics Corporate Presentation


Slide 2

Forward-Looking Statements This presentation contains forward-looking statements that are based on the beliefs and assumptions of Larimar Therapeutics, Inc. ( “Company”) and on information currently available to management. All statements contained in this presentation other than statements of historical fact are forward-looking statements, including but not limited to statements regarding the expectations and assumptions regarding the future of the Company’s business, including the Company’s ability to develop and commercialize CTI-1601 and other planned product candidates, the Company’s planned research and development efforts, and other matters regarding the Company’s business strategies, use of capital, results of operations and financial position, and plans and objectives for future operations. In some cases, you can identify forward-looking statements by the words “may,” “will,” “could,” “would,” “should,” “expect,” “intend,” “plan,” “anticipate,” “believe,” “estimate,” “predict,” “project,” “potential,” “continue,” “ongoing” or the negative of these terms or other comparable terminology, although not all forward-looking statements contain these words. These statements involve risks, uncertainties and other factors that may cause actual results, performance, or achievements to be materially different from the information expressed or implied by these forward-looking statements. These risks, uncertainties and other factors include, among others, the Company’s ability to successfully engage with the FDA and satisfactorily respond to requests from the FDA for further information and data regarding the CTI-1601 clinical trial including the FDA review of data from cohort one from the Phase 2 dose escalation trial and FDA ‘s agreement to escalate the dosing in cohort two , the timing and outcomes of the Company’s interactions with the FDA concerning the partial clinical hold, the success, cost and timing of the Company’s product development activities, nonclinical studies and clinical trials, including CTI-1601 clinical milestones; that preliminary clinical trial results may differ from final clinical trial results, that earlier non-clinical and clinical data and testing of CTI-1601 may not be predictive of the results or success of later clinical trials, and assessments; the ongoing impact of the COVID-19 pandemic on the Company’s future clinical trials, manufacturing, regulatory, nonclinical study timelines and operations, and the potential impact of the Russian invasion of Ukraine on the Company’s ability to raise additional capital and general economic conditions; the Company’s ability and the ability of third-party manufacturers the Company engages, to optimize and scale CTI-1601’s manufacturing process; the Company’s ability to obtain regulatory approvals for CTI-1601 and future product candidates; the Company’s ability to develop sales and marketing capabilities, whether alone or with potential future collaborators, and to successfully commercialize any approved product candidates; the Company’s ability to raise the necessary capital to conduct its product development activities; and other risks described in the filings made by the Company with the Securities and Exchange Commission (SEC), including but not limited to the Company’s periodic reports, including the annual report on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K, filed with or furnished to the SEC and available at www.sec.gov. These forward-looking statements are based on a combination of facts and factors currently known by the Company and its projections of the future, about which it cannot be certain. As a result, the forward-looking statements may not prove to be accurate. These forward-looking statements are based on information currently available to us, and we assume no obligation to update any forward-looking statements, except as required by law.


Slide 3

Investment Highlights: CTI-1601 Cleared for Return to Clinic Double-blind, placebo-controlled Phase 1 proof-of-concept trials in FA patients complete Data show dose dependent increases in frataxin (FXN) levels from baseline compared to placebo in all evaluated tissues with daily dosing & that CTI-1601 was generally well tolerated when dosed for up to 13 days. Clinical-stage biotechnology company with a novel protein replacement therapy platform Focused on addressing unmet needs in Friedreich's ataxia (FA) and potentially other complex rare diseases based on a platform technology backed by a strong intellectual property portfolio Lead candidate: CTI-1601, a recombinant fusion protein designed to deliver frataxin to mitochondria Orphan Drug (US & EU), Rare Pediatric Disease (US), Fast Track (US), & PRIME (EU) designations for FA FDA clearance to initiate a placebo-controlled, Phase 2, 4-week dose exploration study in FA patients FDA lifted full clinical hold on CTI-1601 and imposed a partial hold, thereby clearing advancement to Phase 2 Cohort 1 to evaluate 25 mg dose; dose escalation contingent on FDA review of cohort 1 data Study is expected to initiate in Q4 2022, with top-line data from both cohorts in 2H 2023 Strong financial foundation with projected cash runway into 2H 2024 June 30, 2022 cash - $54.9M; September 2022 public offering raised $75M in net proceeds High-quality institutional investor base includes founding investor Deerfield Management


Slide 4

2005 2010 2020 2025 2030 2035 2040 2045 2000 2015 TAT-MTS-FXN Composition of Matter (broad coverage of CTI-1601) US 9,045,552 (Exclusive license from Wake Forest) Expiration October 2024 Methods of treating FA using TAT-MTS-FXN and delivering TAT-MTS-FXN to mitochondria (broad coverage of CTI-1601) US 8,735,341 (Exclusive license from Wake Forest) Expiration December 2025 (including Patent Term Adjustment) Will be filed in foreign jurisdictions accordingly *Additional pending applications for platform disease targets Est. Expiration March 2041 CTI-1601 Composition of Matter and Methods of Treatment (specific coverage of CTI-1601) US 11,459,363 (Exclusive license from Indiana University) US continuation and foreign applications pending Expiration July 2040 CTI-1601 Patents / Applications Platform Technology is Supported by a Strong IP Portfolio Recently issued CTI-1601 patent extends IP into 2040 Additional CTI-1601 IP protection CTI-1601 pending applications cover key biomarkers, analytical tools and quantification methods CTI-1601 should be eligible for 12 years of market exclusivity upon approval in the US (independent of patents) and at least 10 years of market exclusivity upon approval in EU (independent of patents) Pending Granted Platform Applications Platform Technology: Molecules for Protein Delivery US and foreign applications pending


Slide 5

Caused by genetic defect resulting in low levels of frataxin Patients with FA only produce ~20-40% of normal frataxin levels depending on the tissue, sampling technique, and assay considered1 Affects ~20,000 patients globally, with ~5,000 patients in the U.S. and majority of the remaining patients in the EU Approximately 70% of patients present before age 14 Initial symptoms may include unsteady posture, frequent falling and progressive difficulty in walking. By the time symptoms occur, heart damage may have already occurred. Progressive disease: symptoms worsen and patients are eventually confined to a wheelchair with speech becoming hesitant and jerky (often referred to as “scanning of speech”) Life expectancy of 30-50 years Early death usually caused by heart disease No approved therapies available Current treatment options are limited to symptom management Friedreich’s Ataxia (FA) Rare and Progressive Disease 5 1. E.C. Deutsch et al. Molecular Genetics and Metabolism 101 (2010) 238–245 LRMR continues to have a strong relationship with Friedreich’s Ataxia Research Alliance Dedicated FA patient advocacy group focused on treatments for FA


Slide 6

CTI-1601 is Designed to Deliver Additional Frataxin (FXN) The presence of the cleavage site allows the CPP and MTS to be removed by mitochondrial processing peptidase to produce mature human FXN in the mitochondria STRUCTURE OF ENDOGENOUS FXN STRUCTURE OF CTI-1601 Cleavage by mitochondrial processing peptidase (MPP) at this site produces mature human FXN in mitochondria Mitochondrial Targeting Sequence (MTS) Mature Human FXN Cleavage by mitochondrial processing peptidase (MPP) at this site produces mature human FXN in mitochondria Mature Human FXN Cell Penetrating Peptide (CPP) Mitochondrial Targeting Sequence (MTS) CTI-1601 maintains the cleavage site between the MTS and mature human FXN


Slide 7

Upcoming Phase 2, Four-week Dose Exploration Study Goal: Further characterize PK/PD and assess safety to inform long-term dose and dose regimen Treatment Schedule 28-day Treatment Period 16 17 18 19 15 20 21 22 23 24 25 26 27 28 2 3 4 5 1 6 7 8 9 10 11 12 13 14 = Administration of CTI-1601 or placebo = No Administration Study Details Population Ambulatory and non-ambulatory Friedreich’s ataxia patients ≥18 years of age. CTI-1601 treatment naïve or participated (if eligible) in a previous Larimar study. Dose Cohort 1: 25 mg Cohort 2: Dose escalation contingent on a review of Cohort 1 data by FDA and IDMC Key Endpoints Frataxin levels in peripheral tissue, PK, PD, safety and tolerability. PD endpoints include lipid profiles and gene expression data. Number of Patients ~12-15 patients in Cohort 1 randomized 2:1 to receive CTI-1601 or placebo. Timing Study initiation expected in Q4 2022. Top-line data from both cohorts expected in 2H 2023. IDMC: Independent data monitoring committee


Slide 8

CTI-1601 appears to be generally well tolerated at doses up to 100 mg administered daily for 13 days Phase 1 Top-line Data Demonstrated POC for CTI-1601 in FA Daily dosing of CTI-1601 resulted in dose-dependent increases in FXN levels from baseline compared to placebo controls in all evaluated tissues Pharmacokinetic analyses support evaluating a once-daily dosing regimen for CTI-1601 Daily subcutaneous (SC) administration of 50mg and 100mg doses of CTI-1601 resulted in FXN levels in buccal cells that are at, or in excess of, those we would expect to see in phenotypically normal heterozygous carriers (who have FXN levels of ~50% of unaffected persons) Pharmacodynamics Safety Pharmacokinetics Conclusion 8 POC: Proof-of-concept


Slide 9

CTI-1601: Phase 1 Clinical Program in Patients with FA Phase 1 Development Plan Two double-blind, placebo-controlled dosing trials in patients with FA Patient dosing began December 2019 Safety Review Committee assessed all blinded data between each cohort to ensure patient safety Number of subjects: 28 Dose levels: 25 mg, 50 mg, 75 mg and 100 mg (subcutaneous administration) Treatment Duration: 1 day 1º Endpoint: Safety and tolerability 2º Endpoints: PK; PD; FXN levels; multiple exploratory Status: Complete Single Ascending Dose (SAD) Number of Subjects: 27 Dose Range: 25 mg, 50 mg, 100 mg (subcutaneous administration) Treatment Regimen: Multiple increasing doses administered subcutaneously over 13 days 1º Endpoint: Safety and tolerability 2º Endpoints: PK; PD; FXN levels (buccal cells, platelets, optional skin biopsies); multiple exploratory Status: Complete Multiple Ascending Dose (MAD) Eligible patients from SAD trial could enroll in MAD trial Program consisted of double-blind, placebo controlled single- and multiple-ascending dose trials


Slide 10

Completed Multiple Ascending Dose Study Treatment Schedules for Each Cohort 13-day Treatment Period Cohort 2 (50 mg; n = 9) 2 3 4 5 1 6 7 8 9 10 11 12 13 14 = Administration of CTI-1601 or placebo = No Administration 13-day Treatment Period Cohort 1 (25 mg; n = 8) 2 3 4 5 1 6 7 8 9 10 11 12 13 14 = Administration of CTI-1601 or placebo = No Administration 13-day Treatment Period Cohort 3 (100 mg n = 10) 2 3 4 5 1 6 7 8 9 10 11 12 13 14 = Administration of CTI-1601 or placebo = No Administration FXN Level Sampling Days Presented for Each Cohort Cohort 1 Sampling Days Buccal Cells Baseline, Day 4, Day 13 Skin Baseline, Day 13 Platelets Baseline, Day 4, Day 13 Cohort 2 Sampling Days Buccal Cells Baseline, Day 7, Day 13 Skin Baseline, Day 13 Platelets Baseline, Day 7, Day 13 Cohort 3 Sampling Days Buccal Cells Baseline, Day 7, Day 13 Skin Baseline, Day 13 Platelets Baseline, Day 7, Day 13


Slide 11

Dose Dependent Increases in FXN Levels Observed in Buccal Cells FXN* Levels By Dose Group (Buccal Cells) FXN* Change from Baseline By Dose Group (Buccal Cells) Additional FXN / Total Protein (Change from Baseline) (pg/μg) Day 4/7 Day 13 FXN Concentration / Total Protein (pg/μg) Baseline Day 4/7 Day 13 *FXN levels measured via detection of peptide derived from mature FXN; Data represent median and 25th and 75th percentiles; FXN levels from baseline, Day 4, & Day 13 measurements are shown for data derived from the 25 mg cohort; FXN levels from baseline, Day 7 & Day 13 measurements are shown for data derived from the 50 & 100 mg cohorts; Sample collection days varied in each cohort per the trial protocol


Slide 12

Data Compare Favorably to FXN Levels Expected in Heterozygous Carriers Achieved median FXN levels that were >60% of the median FXN levels observed in healthy controls FXN* Levels By Dose Group (Buccal Cells) Baseline Day 4/7 Day 13 *FXN levels measured via detection of peptide derived from mature FXN; #Data on file; Data represent median and 25th and 75th percentiles ; FXN levels from baseline, Day 4, & Day 13 measurements are shown for data derived from the 25 mg cohort; FXN levels from baseline, Day 7 & Day 13 measurements are shown for data derived from the 50 & 100 mg cohorts; Sample collection days varied in each cohort per the trial protocol. 1. Lazaropoulos et al. Ann Clin Transl Neurol. 2015 Aug; 2(8): 831–842; 2. E.C. Deutsch et al. Molecular Genetics and Metabolism 101 (2010) 238–245. Benchmarking Clinical Relevance FXN levels in buccal cells and blood have been shown to correlate with neurological function in FA patients1 Patients with FA only produce ~20-40% of normal frataxin levels depending on the tissue considered2 Heterozygous carriers who show no signs of disease have FXN levels of ~50% of unaffected healthy persons2 Comparison to Healthy Controls FXN levels were measured in buccal cells from 8 healthy controls using the same assay and sampling technique employed in the Phase 1 MAD trial With daily administration, patients in Cohorts 2 & 3 of the Phase 1 MAD trial achieved median buccal cell FXN levels that were >60% of the median FXN levels observed in healthy controls 60% of median healthy control FXN levels (n=8)# FXN Concentration / Total Protein (pg/μg)


Slide 13

FDA cleared Phase 2 study’s initiation following review of clinical and non-clinical data SUMMARY OF MULTIPLE-ASCENDING DOSE (MAD) TRIAL SAFETY DATA Repeated SC injections of CTI-1601 appear to be generally well tolerated at doses up to 100 mg administered daily for 13 days. No serious adverse events (SAEs), important medical events, or treatment-related severe adverse events were observed. Most common AEs were mild and moderate injection site reactions (ISR). At least one ISR was seen in 43% of patients receiving placebo, and all patients receiving CTI-1601 experienced ISRs. Most ISRs resolved within an hour after injection, and all ISRs resolved without intervention. There were no study discontinuations due to ISRs. Except for ISRs, the number and severity of AEs did not increase with increasing exposure to CTI-1601. Accumulation of CTI-1601 was not observed at the doses and dose regimens studied. Clinical & Non-clinical Safety Data Support Initiation of the 4-Week, Phase 2 Dose Exploration Study’s 25 mg Cohort The clinical hold was put in place following deaths that occurred during the 26-week toxicology study in 3 out of a total of 34 NHPs. All 3 of these NHPs were in the two highest dose groups. All NHPs in the two lower dose groups survived to the end of the 26-week toxicology study. Based on AUC, Cmax, and Ctrough from the Phase 1 studies at the 25 mg and 50 mg levels, and the no observed adverse effect levels from the 4-, 13-, and 26-week toxicology studies, the safety margins calculated for CTI-1601 are generally greater than 10. Though the precise mechanism of toxicity in NHPs was not determined, we believe the toxicity was associated with accumulation and high levels of exposure as demonstrated by the safety margins. We believe the presence of persistent edema at the injection sites in some NHPs may explain the accumulation associated with adverse events, as well as higher plasma levels of CTI-1601. In the clinic, injection sites will be closely monitored and we intend to avoid the use of injection sites where persistent edema is present. SUMMARY OF NON-HUMAN PRIMATE (NHP) DATA SC: Subcutaneous


Slide 14

Upcoming CTI-1601 Trials Future Planned Trials Include: Global double-blind placebo-controlled pivotal trial. Jive OLE trial for eligible patients who participated in SAD, MAD, and/or four-week dose exploration studies. Expected to begin in 2H 2023. MAD trial in patients 2 to 17 years of age. Participants eligible to screen for Jive OLE trial. Expected to begin in 2H 2023. Phase 2, four-week dose exploration study intended to identify dose and dose regimen for long-term studies. Expected to begin in Q4 2022. *Dose escalation in the Phase 2 trial and initiation of the Jive, pediatric MAD trials and global pivotal trial will be subject to the FDA lifting the partial clinical hold. OLE: Open-label extension


Slide 15

Summary: CTI-1601 Advancing to Phase 2 Trial 15 POC: Proof-of-concept Clinical POC Data Designed to address the root cause of Friedreich’s ataxia by delivering mature FXN to mitochondria. CTI-1601 Daily dosing of 50 mg or 100 mg of CTI-1601 for at least 7 days resulted in buccal cell FXN levels that met or exceeded those expected in phenotypically normal heterozygous carriers. Next Steps Initiate in Q4 2022 a Phase 2 dose exploration study in Friedreich’s ataxia patients. Cohort 1 to evaluate 25 mg dose; dose escalation contingent on FDA review of cohort 1 data. Top-line data from both cohorts expected in 2H 2023.


Slide 16

Investment Highlights: CTI-1601 Cleared for Return to Clinic Double-blind, placebo-controlled Phase 1 proof-of-concept trials in FA patients complete Data show dose dependent increases in frataxin (FXN) levels from baseline compared to placebo in all evaluated tissues with daily dosing & that CTI-1601 was generally well tolerated when dosed for up to 13 days Clinical-stage biotechnology company with a novel protein replacement therapy platform Focused on addressing unmet needs in Friedreich's ataxia (FA) and potentially other complex rare diseases based on a platform technology backed by a strong intellectual property portfolio Lead candidate: CTI-1601, a recombinant fusion protein designed to deliver frataxin to mitochondria Orphan Drug (US & EU), Rare Pediatric Disease (US), Fast Track (US), & PRIME (EU) designations for FA FDA clearance to initiate a placebo-controlled, Phase 2, 4-week dose exploration study in FA patients FDA lifted full clinical hold on CTI-1601 and imposed a partial hold, thereby clearing advancement to Phase 2 Cohort 1 to evaluate 25 mg dose; dose escalation contingent on FDA review of cohort 1 data Study is expected to initiate in Q4 2022, with top-line data from both cohorts in 2H 2023 Strong financial foundation with projected cash runway into 2H 2024 June 30, 2022 cash - $54.9M; September 2022 public offering raised $75M in net proceeds High-quality institutional investor base includes founding investor Deerfield Management


Slide 17

THANK YOU Larimar Therapeutics Corporate & Clinical Update


Slide 18

Appendix Larimar Therapeutics


Slide 19

MAD Trial Patient Demographics Parameter Statistic All placebo (n=7) 25 mg CTI-1601 (n=6) 50 mg CTI-1601 (n=7) 100 mg CTI-1601 (n=7) All CTI-1601 (n=20) Overall (n=27) Sex Male n (%) 5 (71.4) 3 ( 50.0) 4 ( 57.1) 3 ( 42.9) 10 ( 50.0) 15 (55.6) Female n (%) 2 (28.6) 3 ( 50.0) 3 ( 42.9) 4 ( 57.1) 10 ( 50.0) 12 (44.4) Age (years) Mean 25.7 39.7 34.7 28.0 33.9 31.7 SD 6.37 16.59 9.03 8.96 12.13 11.40 Median 23 37 36 24 34 28 Min, Max 20,36 21,65 19,47 20,44 19,65 19,65 Race White n (%) 6 ( 85.7) 6 (100.0) 6 ( 85.7) 6 ( 85.7) 18 ( 90.0) 24 (88.9) Asian n (%) 0 0 1 ( 14.3) 1 ( 14.3) 2 ( 10.0) 2 ( 7.4) American Indian n (%) 1 ( 14.3) 0 0 0 0 1 (3.7) Ethnicity Hispanic/Latino n (%) 2 (28.6) 0 0 0 0 2 (7.4) Not Hispanic/Latino n (%) 5 (71.4) 6 (100.0) 7 (100.0) 7 (100.0) 20 (100.0) 25 (92.6) SD: Standard deviation


Slide 20

MAD Trial Patient Disease Characteristics Parameter Statistic All placebo (n=7) 25 mg CTI-1601 (n=6) 50 mg CTI-1601 (n=7) 100 mg CTI-1601 (n=7) All CTI-1601 (n=20) Overall (n=27) Age at Symptom Onset Mean 14.1 24.0 19.3 11.9 18.1 17.1 SD 5.34 14.48 6.21 6.72 10.37 9.39 Median 15.0 18.0 19.0 10.0 18.0 16.0 Min, Max 8,23 12,44 8,28 5,22 5,44 5,44 Age at Diagnosis Mean 18.3 31.5 26.4 15.9 24.3 22.7 SD 7.87 19.88 4.28 8.21 13.24 12.23 Median 20.0 25.5 28.0 13.0 27.0 21.0 Min, Max 9,32 14,64 17,30 5,27 5,64 5,64 Assistive Device Walker n (%) 0 2 (33.3) 3 (42.9) 0 5 (25.0) 5 (18.5) Wheelchair n (%) 4 (57.1) 3 (50.0) 1 (14.3) 6 (85.7) 10 (50.0) 14 (51.9) Other n (%) 1 (14.3) 0 1(14.3) 0 1 (5.0) 2 (7.4) None n (%) 2 (28.6) 1 (16.7) 2 (28.6) 1 (14.3) 4 (20.0) 6 (22.2) SD: Standard deviation


Slide 21

Dose Dependent Increases in FXN Levels Observed in Skin FXN* Levels By Dose Group (Skin Biopsies) FXN* Change from Baseline By Dose Group (Skin Biopsies) Day 13 Baseline Day 13 *FXN levels measured via detection of peptide derived from mature FXN; Data represent median and 25th and 75th percentiles Daily SC injections of 100 mg CTI-1601 resulted in an ~3 fold increase in FXN levels from baseline Additional FXN / Total Protein (Change from Baseline) (pg/μg) FXN Concentration / Total Protein (pg/μg)


Slide 22

Dose Dependent Increases in FXN Levels Observed in Platelets with Daily Dosing Daily SC injections of 100mg CTI-1601 resulted in increases in FXN levels from baseline compared to placebo FXN* Levels By Dose Group (Platelets) FXN* Change from Baseline By Dose Group (Platelets) Day 4/7 Day 13 Baseline Day 13 Day 4/7 *FXN levels measured via detection of peptide derived from mature FXN; Data represent median and 25th and 75th percentiles; FXN levels from baseline, Day 4, & Day 13 measurements are shown for data derived from the 25 mg cohort; FXN levels from baseline, Day 7 & Day 13 measurements are shown for data derived from the 50 & 100 mg cohorts; Sample collection days varied in each cohort per the trial protocol Additional FXN / Total Protein (Change from Baseline) (pg/μg) FXN Concentration / Total Protein (pg/μg)


Slide 23

Summary of PK Analyses CTI-1601 was quickly absorbed after subcutaneous administration Dose-proportional increases in exposure observed with increasing doses of CTI-1601 Mean half life of CTI-1601 in plasma was approximately 11 hours CTI-1601 appears to be at or close to steady state exposure after 13 days of dosing 100 mg once daily PK analyses support evaluating a once-daily dosing regimen for CTI-1601


Slide 24

Leadership Team Nancy Ruiz, MD, FACP, FIDSA Chief Medical Officer John Berman, CPA VP, Finance & Operations David Bettoun, PhD VP, Discovery & Non-clinical R&D Noreen Scherer VP, Clinical Operations Michael Celano Chief Financial Officer Keith E. Lynch, Jr. VP, Manufacturing and Supply Chain Francis Michael Conway VP, Controller Carole Ben-Maimon, MD Chief Executive Officer Mohamed Hamdani VP, Biometrics Jennifer Johansson, JD VP, Regulatory Affairs & Counsel


Slide 25

Company has strong relationship with Friedreich’s Ataxia Research Alliance (FARA) National, non-profit organization dedicated to the pursuit of scientific research leading to treatments and a cure for FA FARA provides industry with several key items Assistance with patient recruitment and education Access to Global Patient Registry with demographic and clinical information on more than 1,000 FA patients Sponsored a Patient-Focused Drug Development Meeting in 2017 resulting in a publication titled “The Voice of the Patient” Strong Relationship with FARA


Slide 26

Scientific Advisory Board Giovanni Manfredi, MD, PhD  Finbar and Marianne Kenny Professor in Clinical and Research Neurology at Weill Cornell Medicine.  Professor of Neuroscience at Weill Cornell Medicine. Russell Clayton, DO  (Chairman) Former Chief Medical Officer at Alcresta Therapeutics, a medical device company  Former Senior Vice President of Research and Development at Discovery Labs, a pharmaceutical and medical device company Co-founder of Chondrial Therapeutics, which became Larimar Therapeutics, Inc.  Professor of Pediatrics at Indiana University School of Medicine  Executive Director of the Mitochondrial Medicine Frontier Program at The Children’s Hospital of Philadelphia (CHOP)    Professor in the Division of Human Genetics, Department of Pediatrics at University of Pennsylvania Perelman School of Medicine Mark Payne, MD  Marni J. Falk, MD  Medical director and division chief of the University of California San Francisco (UCSF) Movement Disorders and Neuromodulation Center.  Carlin and Ellen Wiegner Endowed Professor of Neurology Jill Ostrem, MD 


Slide 27

CTI-1601: Positive Mouse Model Data Support Development Cardiac Knock Out Mouse Model Studies (MCK-Cre FXN KO Mouse) Proof-of-Concept Demonstrated In Mouse Models of FA Neurologic Knock Out Mouse Model Study (Pvalb-CRE FXN KO Mouse) Extended survival Prevented development of ataxic gait Demonstrated ability to deliver hFXN to mitochondria Showed that treated mice survive longer than untreated mice Increased in a dose dependent manner, succinate dehydrogenase (SDH) activity. SDH is an FXN dependent enzyme, whose activity is indicative of mitochondrial function Demonstrated CNS penetration, as hFXN was present in brain, dorsal root ganglia & spinal cord Prevented left ventricle dilation and maintained function


Slide 28

CTI-1601 Extends Survival in FXN-deficient KO Mice Median Survival of MCK-Cre FXN-KO Mice 166 days (CTI-1601) vs. 98 days (Vehicle) CTI-1601 was administered 10 mg/kg SC every other day Survival beyond vehicle mean (107.5 days) 87.5% (CTI-1601) vs. 33% (Vehicle) Demonstrates that CTI-1601 is capable of delivering sufficient amounts of FXN to mitochondria Days Percent Survival CTI-1601 rescues a severe disease phenotype in a well-characterized cardiac mouse model of FA P=0.0001 Initial Proof-of-Concept for FXN Replacement Therapy in Cardiac Mouse Model of FA


Slide 29

Pvalb-Cre FXN-KO mouse Single dose level: 10 mg/kg CTI-1601 or vehicle given intraperitoneally three times per week hFXN replacement with CTI-1601 prevents the development of ataxic gait CTI-1601-treated mice survive longer than untreated mice Human frataxin present in brain, dorsal root ganglia and spinal cord demonstrating central nervous system penetration CTI-1601 Prevents The Development of Ataxic Gait in KO mice In-Vivo Efficacy Data in Neurologic KO Mouse Model


Slide 30

CTI-1601 Delivers hFXN to Mitochondria in KO Mice hFXN concentration within mitochondria increases in a dose-dependent manner Given subcutaneously, CTI-1601 functionally replaces hFXN in mitochondria of KO mice Succinate dehydrogenase (SDH) activity, which is indicative of mitochondrial function, increases in a dose-dependent manner after administration of CTI-1601; activity plateaus at 30 mg/kg and is equivalent to activity in wild type animals Demonstrated normalization of gene expression in cardiac tissue MPK = mg/kg MPK = mg/kg Normalized Mitochondrial FXN (Heart) Normalized SDH Activity (Muscle)


Slide 31

CTI-1601 Prevents Left Ventricle Dilation in KO Mice Left ventricular (LV) volume increases in systole in untreated mice by 8 weeks (after 4 weeks of dosing with vehicle), but remains similar to wildtype when treated with CTI-1601 (10 mg/kg every other day) CTI-1601-treated mice have similar LV volume as healthy controls; echocardiogram shows significant differences between vehicle and CTI-1601 treated (10 mg/kg every other day) KO mice Diameter (mm) Age in Weeks Age in Weeks Volume (μL) KO: CTI-1601 Wild-type: Vehicle KO: Vehicle Left Ventricle Internal Diameter (Systole) Left Ventricle Volume (Systole)


Slide 32

CTI-1601 Preserves Left Ventricle Function in KO Mice Left ventricular (LV) function drops significantly in vehicle treated mice by week 8 CTI-1601-treated (10 mg/kg every other day) mice have similar LV as healthy controls; echocardiogram shows significant differences between vehicle and CTI-1601 treated KO mice Percent Change Age in Weeks KO: CTI-1601 Wild-type: Vehicle KO: Vehicle Left Ventricle Ejection Function Left Ventricle Fractional Shortening Percent Change Age in Weeks