Full-Time

Senior Medical Science Liaison

Medical Science Liaison

Centessa Pharmaceuticals

Centessa Pharmaceuticals

51-200 employees

Clinical-stage pharma with asset-centric model

Compensation Overview

$190k - $230k/yr

+ Bonus

Boston, MA, USA

Remote

Category
Biology & Biotech (1)
Requirements
  • Advanced degree (PhD, PharmD, MD, DP, PsyD, DNP) in life sciences or a related field (from An Accredited College or University)
  • Minimum 4+ years' experience as an MSL for a drug development company in the pharmaceutical/biotech industry
  • Demonstrated understanding of sleep medicine and/or associated neuroscientific areas required
  • Exceptional verbal and written communication skills; ability to tailor scientific messages to diverse audiences and ability to interpret and communicate complex scientific data
  • Proven ability to build and maintain strong relationships with KOLs, investigators, and internal stakeholders
  • Strong understanding of clinical trial design, regulatory requirements, and therapeutic area landscape
  • Skilled in developing and delivering scientific presentations in various settings
  • Strong understanding of industry regulations and guidelines governing medical interactions
  • Ability to align field activities with broader medical and corporate strategies
  • Senior MSLs have a proven ability to lead and mentor peers
  • Must have a valid driver’s license with a driving record that meets company requirements
  • Must reside within the New England region or the New York Metro area.
  • Willing and able to travel frequently within assigned territory (Boston, New York, Philadelphia, Baltimore, Detroit, Cleveland, Cincinnati)
Responsibilities
  • Maintain a high level of therapeutic area expertise and scientific knowledge relevant to Centessa’s pipeline and marketed products in alignment with Medical Affairs strategic objectives
  • Engage in compliant, non-promotional scientific exchange with key opinion leaders (KOLs), investigators, and other HCPs
  • Serve as a trusted scientific resource to external stakeholders, providing accurate and balanced medical information
  • Deliver company-approved, high-quality medical/scientific presentations to a variety of audiences including formulary committees and healthcare professionals
  • Provide medical/scientific support for critical Centessa activities including speaker training, advisory boards, and sales training as appropriate
  • Ensure accurate, timely, and compliant documentation of field-based activities in accordance with MSL organization guidelines
  • Collaborate with Clinical Operations to identify and evaluate potential clinical trial sites and investigators based on scientific expertise, patient population, and alignment with study objectives
  • Provide scientific education and protocol-specific training to investigators and site staff during site initiation visits, ensuring thorough understanding of study rationale and endpoints
  • Maintain ongoing engagement with trial sites and investigators to facilitate successful execution of clinical trial objectives, provide ongoing scientific support, address protocol-related inquiries, and ensure high-quality data generation
  • Attend relevant scientific and medical congresses to stay current with emerging data and trends
  • Provide real-time insights and post-conference reports to internal teams
  • Support Centessa’s presence at congresses through development of pre-conference plans, booth coverage, symposia participation, and KOL engagement
  • Senior MSLs will be responsible to leading strategic conference planning, execution, and reporting
  • Contribute to the development of scientific slide decks, FAQs, and educational materials
  • Writing and editing Medical Information response letters
  • Ensure all materials are medically accurate, evidence-based, and compliant with regulatory standards
  • Collaborate with Medical Affairs and Legal teams to ensure scientific content meets internal and external guidelines
  • Lead MSL strategic initiatives/projects aligned with Medical Affairs and MSL organization strategy
  • Develop and implement scientific training plans for the MSL team
  • Contribute to MSL organization strategy in collaboration with MSL leadership
  • Mentorship of MSL peers
Centessa Pharmaceuticals

Centessa Pharmaceuticals

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Centessa Pharmaceuticals uses an asset-centric hub-and-spoke model formed from ten subsidiary companies to advance multiple therapies. Its lead program ORX750 is an oral orexin receptor 2 agonist for sleep-wake disorders and is in Phase 2a with Phase 2 data expected in 2025. It also develops an early-stage immuno-oncology program based on the LockBody technology, which engineers antibodies to improve cancer treatment. The company funds development through equity, debt, and partnerships and aims to move ORX750 toward regulatory approval while expanding its oncology portfolio.

Company Size

51-200

Company Stage

IPO

Headquarters

Boston, Massachusetts

Founded

2021

Simplify Jobs

Simplify's Take

What believers are saying

  • Cleminorexton Phase 3 initiation Q1 2026 targets $15B narcolepsy market with potential peak sales exceeding $2B annually.
  • Contingent value rights up to $1.5B tied to FDA approvals by 2030 incentivize rapid development and commercialization.
  • Expanded pipeline into depression and cognitive disorders unlocks multi-billion-dollar addressable market beyond sleep disorders.

What critics are saying

  • Takeda oveporexton FDA approval Q3 2026 establishes market standard before cleminorexton Phase 3 completion.
  • Alkermes alixorexton Phase 3 launch Q1 2026 fragments narcolepsy market and reduces peak sales projections 40%.
  • Lilly acquisition closing delayed or blocked by UK regulators or shareholders through Q3 2026, stranding Centessa cash.

What makes Centessa Pharmaceuticals unique

  • Cleminorexton demonstrates best-in-class 22.6-minute sleep delay versus competitors in Phase 2a trials.
  • Orexin platform expands beyond narcolepsy into neuropsychiatric and neurodegenerative indications with ORX142 and ORX489.
  • Eli Lilly acquisition provides $6.3B upfront capital and commercial scale to accelerate Phase 3 and regulatory approval.

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Your Connections

People at Centessa Pharmaceuticals who can refer or advise you

Benefits

Remote Work Options

Flexible Work Hours

Wellness Program

Mental Health Support

Stock Options

Company Equity

Conference Attendance Budget

Professional Development Budget

Telework isn't listed but Remote Work Options covers it

Phone/Internet Stipend

Home Office Stipend

Growth & Insights and Company News

Headcount

6 month growth

-2%

1 year growth

-2%

2 year growth

-6%
Genetic Engineering and Biotechnology News
Apr 10th, 2026
Drugs from a text prompt, Wegovy pill competition dampens Lilly's surge.

Drugs from a text prompt, Wegovy pill competition dampens Lilly's surge. April 10, 2026 From designing drugs with a simple text prompt to running experiments guided by extended reality, a new wave of agentic AI is transforming the modern lab. Its editors discuss the latest autonomous systems accelerating biological discovery. In business deals, Gilead Sciences has acquired Tubulis in a transaction worth up to $5 billion, strengthening the buyer's position in antibody-drug conjugates for cancer. Correspondingly, Eli Lilly and Biogen are each making billion-dollar-plus bets, acquiring Centessa, a sleep disorder drug developer, and Apellis, known for its work in immunology and rare diseases. Its episode rounds out by unpacking the dynamic obesity drug market, where intensifying competition from Novo Nordisk's Wegovy pill is prompting Lilly to temper the 2026 sales outlook for its oral obesity drug, Foundayo. Listed below are links to the GEN stories referenced in this episode of Touching Base:

BioSpace
Mar 31st, 2026
Lilly wakes up sleep market with $6.3B Centessa buy to challenge Takeda.

Lilly wakes up sleep market with $6.3B Centessa buy to challenge Takeda. March 31, 2026 | In the buyout, Eli Lilly picks up Centessa Pharmaceuticals' lead asset cleminorexton, which could go toe-to-toe with Takeda's oveporexton, currently under FDA review with a decision expected in the third quarter. Looking to further expand its expertise beyond the cardiometabolic and neurology arenas, Eli Lilly is taking over Centessa Pharmaceuticals and its pipeline of sleep disorder drugs - a move that could put the pharma in direct competition with Takeda. Under the terms of the acquisition agreement, announced Tuesday morning, Lilly will snap up Centessa for $38 per share or $6.3 billion upfront. The pharma has also offered a contingent value right that entitles stockholders to $9 more per share if the deal hits certain milestones, including one of two FDA approvals before a certain period of time lapses. This contingent offer could add $1.5 billion more to the total buyout value. Lilly and Centessa expect to close the transaction in the third quarter of 2026. The boards of directors of both companies have approved the deal. At the heart of the acquisition agreement is Centessa's lead asset cleminorexton, an oral orexin receptor 2 (OX2R) agonist being trialed for narcolepsy type 1, narcolepsy type 2 and idiopathic hypersomnia. Orexin is a key neuropeptide that regulates the sleep-wake cycle, according to the biotech's website, in turn promoting wakefulness. Drugs that activate this pathway could help address excessive daytime sleepiness as well as improve attention, cognition and fatigue. In April 2025, Centessa released Phase 1 data showing that a 5-mg oral dose of cleminorexton delayed sleep by an average of 37.9 minutes compared to 15.3 minutes in placebo recipients, resulting in a "statistically significant" treatment effect of 22.6 minutes, the biotech said at the time. This readout "reinforces ORX750 as a potentially best-in-class OX2R agonist relative to competitors," Leerink analysts wrote an April 7, 2025 note. Analysts at BMO Capital Markets said Centessa's orexin receptor agonist has "best-in-class" potential for narcolepsy, putting the company in a strong position in the $15 billion market. April 7, 2025 With the Centessa pickup, Lilly will go toe-to-toe with Takeda, which is far ahead in the narcolepsy race with its late-stage oveporexton, also an OX2R agonist. In July 2025, Takeda announced that oveporexton significantly improved excessive daytime sleepiness, attention, quality of life, functioning and cataplexy in two Phase 3 studies. The FDA accepted Takeda's approval submission for the candidate last month, with a decision out in the third quarter of this year. Also in the narcolepsy game is Alkermes, which in November last year announced that its own OX2R agonist alixorexton aced Phase 2 and would move into late-stage development. The drug improved wakefulness and eased daytime sleepiness in patients with narcolepsy type 2, according to results presented at the time. Alixorexton's Phase II performance sets it up for late-stage success, according to analysts at Truist Securities. Alkermes expects to launch a global late-stage program early next year for narcolepsy type 2. November 13, 2025 Aside from cleminorexton, Lilly will also come into possession of Centessa's broader pipeline of OX2R agonists, which includes additional preclinical assets with therapeutic potential "across a broader range of neurological, neurodegenerative, and neuropsychiatric conditions," the pharma said Tuesday. Tristan is BioSpace 's senior staff writer. Based in Metro Manila, Tristan has more than eight years of experience writing about medicine, biotech and science. He can be reached at [email protected], [email protected] or on LinkedIn.

PR Newswire
Mar 31st, 2026
Lilly to acquire Centessa for $6.3B to advance sleep-wake disorder treatments

Eli Lilly has agreed to acquire Centessa Pharmaceuticals for $38.00 per share in cash plus contingent value rights worth up to $9.00 per share, valuing the deal at approximately $6.3 billion upfront with potential additional payments of $1.5 billion. The upfront consideration represents a 40.5% premium to Centessa's 30-day volume-weighted average share price. Centessa is developing orexin receptor 2 agonists for sleep-wake disorders, with lead candidate cleminorexton showing promising results in Phase 2a studies across narcolepsy type 1, narcolepsy type 2 and idiopathic hypersomnia. The acquisition expands Lilly's neuroscience portfolio into sleep medicine. Contingent payments are tied to FDA approvals of cleminorexton or ORX142 by 2030. The transaction, structured as a scheme of arrangement, requires shareholder approval and is expected to close in the third quarter.

BioWorld
Mar 31st, 2026
Lilly shifts from obesity to narcolepsy with $7.8B Centessa buy.

Lilly shifts from obesity to narcolepsy with $7.8B Centessa buy. March 31, 2026 Eli Lilly and Co. plans to buy Centessa Pharmaceuticals plc for $6.3 billion in up-front cash and another potential $1.5 billion through contingent value rights, gaining access to a pipeline of orexin receptor 2 (OX2R) agonists for sleep disorders. The pharma is re-entering a field that has multibillion-dollar potential and one that could emulate the success seen with its obesity program. Centessa, of Boston and London, has a lead candidate, ORX-750, with positive phase IIa data in narcolepsy types 1 and 2 and idiopathic hypersomnia, as well as two other OX2R agonists: ORX-142 for neurological and neurodegenerative disorders, and ORX-489 for neuropsychiatric disorders. The M&A, expected to close in the third quarter, boosted not only Centessa's shares (NASDAQ:CNTA) - which rose 45% to $39.99 in early trading March 31 - but also competitor Alkermes plc's shares (NASDAQ:ALKS), up 17% to $35.41 midday, as it has a similar candidate in development. Biogen paying $5.6B for Apellis; cvrs, too. Biogen Inc. and Apellis Pharmaceuticals Inc. inked a deal whereby the former has agreed to acquire all outstanding shares of the latter for $41 each, or about $5.6 billion. Apellis stockholders will also take ownership of a nontransferable contingent value right for each Apellis share held, entitling the holder to bank two payments of $2 per share if annual global net sales thresholds are met with Syfovre (pegcetacoplan), Apellis' complement inhibitor approved by the U.S. FDA in February 2023 for geographic atrophy secondary to age-related macular degeneration. Shares of Apellis (NASDAQ:APLS) were trading at $40.28, up $23.19, or 135%. Biogen (NASDAQ:BIIB) was selling for $178.99, down $8.58. Galapagos rebrands, moves forward in autoimmune diseases. Galapagos NV is about to bury its recent turbulent past and sail off for the future with its near €3 billion cash pile and the new name of Lakefront Biotherapeutics NV. The foundation for the transition was laid earlier this month in an arrangement with Gilead Sciences Inc., holder of 25% of Galapagos' equity, to "co-parent" the assets of Ouro Medicines LLC, which Gilead is acquiring up to $2.17 billion. On March 31, Galapagos confirmed details of the deal, under which it will conduct further development of Ouro's lead asset, gamgertamig (OM-336), a bispecific T-cell engager antibody that is in phase Ib dose-ranging studies in a number of rare autoimmune diseases. Simcere's rademikibart meets phase III endpoints in atopic dermatitis. Simcere Pharmaceutical Group Ltd.'s monoclonal antibody, rademikibart (CBP-201), met the primary endpoint in a Chinese phase III study in adults and adolescents with moderate to severe atopic dermatitis (AD). The company presented results of the phase III Radiant-AD study at the American Academy of Dermatology meeting in Denver on March 30. As previously reported by BioWorld, Simcere entered an exclusive licensing and collaboration agreement with Connect Biopharma Holdings Ltd., obtaining rights to develop, manufacture and commercialize rademikibart for all indications in China. Whoop secures $575M, with abbott a strategic investor. Whoop Inc. secured $575 million in a series G funding round at a $10.1 billion valuation to advance its AI-powered wearable platform for personalized and preventive health care. Abbott Laboratories joined the round as a strategic investor, backing the company's push to expand access to its device amid growing demand. Braveheart finds phase II positive for cardiac myosin inhibitor. Braveheart Bio Inc. reported positive results from an open-label randomized phase II dose-ranging study of BHB-1893 (HRS-1893) in obstructive hypertrophic cardiomyopathy. Results presented at the American College of Cardiology's Annual Scientific Session and Expo in New Orleans showed BHB-1893 treatment was associated with rapid and substantial reductions in left ventricular outflow tract gradient, the primary endpoint of the study. BHB-1893 is an oral cardiac myosin inhibitor that Braveheart licensed from Jiangsu Hengrui Pharmaceuticals Co. Ltd. in September 2025 for $65 million up front and up to $1.01 billion in development and sales milestone payments, plus royalties. US FDA says no, again, to Vanda's tradipitant in gastroparesis. The path forward, at least in the U.S., is getting narrower for Vanda Pharmaceuticals Inc.'s tradipitant as a treatment for gastroparesis, a serious disorder for which there's been no new treatment for several decades. Sara Brenner, the principal deputy FDA commissioner, denied Vanda's request for an agency hearing on CDER's proposal to refuse to approve the drug for that indication. "I find that there is no genuine and substantial issue of fact justifying a hearing," Brenner said in issuing an order refusing to approve the NDA. Vanda's recourse, she noted, is to submit a petition for reconsideration to the FDA commissioner. Supreme Court shuts the door to three life sciences petitions. What do a patent dispute over a CRISPR-Cas system, a rejected whistleblower case involving lab tests and a vaccine injury claim parading as multidistrict tort litigation have in common? All three were denied cert in the U.S. Supreme Court's latest orders list. Consequently, two Agilent Technologies Inc. patents relating to a CRISPR-Cas system for gene editing will remain invalid. A former Quest Diagnostics Inc. employee can't move forward with her fourth amended qui tam complaint against the company. And the multidistrict Gardasil liability litigation against Merck & Co. has hit the end of the road. Also in the news. 4DMedical, Adarx, Alamar, Alumis, Anaptysbio, Anumana, AP Biosciences, Arch, Arcutis, Arrowhead, Artelo, Aurinia, Biocytogen, Biogen, Biomx, BMS, Boston Scientific, Bridgebio, Butterfly, Castle, Cathworks, Centivax, Chiesi, Connect, Cue, Egetis, Eisai, Elevar, Enodia, Everest Medicines, First Tracks, GSK, Idorsia, Incyte, Inflarx, Innovent, J&J, Kailera, Kardigan, Kezar, Konica Minolta, Kymera, Levicept, Medtronic, Merck, Moonlake, Nanoscope, Novavax, Oncomatryx, Pie Medical, Priovant, Radiant Vision, Roche, Royalty Pharma, Sanofi, Savara, Simcere, Sobi, SS Innovations, Taisho, Takeda, Tasly, Teva, Transcenta, United, Viridian, Zymeworks To read more on related topics, click on one of the words below.

pharmaphorum
Mar 31st, 2026
Eli Lilly makes $7.8bn takeover play for Centessa.

Eli Lilly makes $7.8bn takeover play for Centessa. Centessa Pharma is heading for an acquisition by Eli Lilly, which has offered $6.3 billion for the company, with another $1.5 billion in future payments tied to FDA approvals of its lead drug for sleep disorders. The prize for Lilly is orexin receptor 2 (OX2R) agonist cleminorexton (formerly ORX750), which has shown promise as a treatment for narcolepsy type 1 (NT1), narcolepsy type 2 (NT2), and idiopathic hypersomnia (IH) in mid-stage clinical testing. In a statement, Lilly said that cleminorexton and follow-up drugs in Centessa's OX2R pipeline have "significant promise to meaningfully improve outcomes across a range of sleep-wake disorders." The big pharma group is offering $38.00 in cash per share for UK- and US-based Centessa, with another $2 payable if cleminorexton or follow-up ORX142 gets approved in the US for NT2 - and $5 if either of the drugs gets cleared for IH - within five years of the acquisition closing. A third payment of $2 is on offer if cleminorexton or ORX142 get approved in any indication before 1st January 2030. Shares in Centessa, which is listed on the Nasdaq, were up nearly 48% to $40.75 at the time of writing. Lilly said it thinks cleminorexton has "best in class" potential for sleep disorders, although, the drug is playing catch-up in the OX2R category. Takeda's oveporexton and Alkermes' alixorexton are further ahead in development, with the FDA starting a review of the former in NT1 last month, while Alkermes said in February it would start a phase 3 narcolepsy programme in the first quarter of this year. Eisai, meanwhile, started enrolling patients in a phase 2 trial of its E2086 candidate in NT1 and NT2 last week. "Orexin receptor biology represents one of the most compelling mechanistic opportunities in neuroscience as a direct intervention on the master switch of the sleep-wake cycle," said Carole Ho, president of Lilly Neuroscience. "Centessa has assembled a portfolio with the breadth and depth to improve wakefulness across a broad array of indications," she added. "Joining forces with Centessa colleagues means we can now pursue that potential at the speed and scale it deserves." The deal, which is subject to closing conditions in the UK, is expected to complete in the third quarter, said Lilly, which has been investing heavily in its pipeline of late, with the effort fuelled by burgeoning sales of diabetes and obesity therapies. Centessa is its third M&A deal this year, coming after a $2.4 billion bid for cell therapy company Orna Therapeutics and an agreement to buy immunology specialist Ventyx Bio for $1.2 billion, and the group also signed an $8.8 billion strategic alliance with China's Innovent Biologics. 31 March, 2026