Regeneron Japan KK Posted July 14, 2026

Senior Manager, Field Medical Affairs

Tokyo, Japan Full time
Medical Affairs Manager

Regeneron Japan KK is the source of truth for this posting and owns the application process. We surface normalized context and market comparison you won't find on the original listing.

About this opportunity

Build our future together:

At Regeneron, we use science and innovation to develop life-changing medicines for people with serious diseases. We are seeking a Senior Manager, Field Medical Affairs – Oncology, Japan to join our Medical Affairs team, supporting our oncology portfolio in a field-based role. In this role, you will engage in scientific exchange and collaborate with therapeutic area experts to provide disease and product information, as well as support research initiatives. This position offers the opportunity to contribute to a fast-growing, science-driven organization making a meaningful difference to patients worldwide.

When & where:

Field-based.

Discover your role:

Identify and maintain relationships with medical and therapeutic area experts, investigator targets, and develop associated action plans.

Respond to requests for information on study indications, disease states, and therapeutic areas, presenting scientific and clinical data to diverse audiences in a compliant manner.

Educate practitioners, payers, and researchers on disease management and therapeutic areas.

Attend medical conferences to gather and share scientific, clinical, and competitive intelligence with internal stakeholders.

Support the investigator-initiated study program by building scientific relationships with investigators and identifying research opportunities.

Collaborate with Clinical Development, Clinical Operation, and trial staff to support site initiation, enrollment, and execution of Medical Affairs strategies.

Develop and implement rules and procedures for Field Medical activities to ensure compliance with relevant laws, regulations, guidelines, policies, and industry standards.

You excel in working collaboratively within a matrix organization and cultivating relationships in academic and clinical practice settings.

This role requires:

A healthcare or scientific professional (PhD, MD, PharmD) with oncology experience and/or clinical trial experience. A Master’s Degree with extensive oncology expertise may be considered.

Deep knowledge and significant experience in lung cancer/solid tumors or hematology oncology; immuno-oncology experience is preferred.

At least 3 years of relevant experience in the pharmaceutical industry or clinical settings such as drug information, disease management programs, or clinical pharmacy/medicine.

Strong communication skills and fluency in Japanese and English.

Ability to travel 30–50%.

Experience working in a matrix organization and collaborating with academic and clinical practice settings.

A commitment to adhering to compliance culture and standards.

Does this sound like you? Apply now to take your first step towards living the Regeneron Way! We are committed to building a workplace with an inclusive culture. Regeneron is an equal opportunity employer and all  qualified applicants will receive consideration for employment without regard to race, color, religion or belief (or lack thereof), sex, sexual orientation, gender identity or expression, gender reassignment, marital or civil partnership status, civil status, pregnancy or parental status, age, disability, nationality, citizenship status, ethnic or national origin, membership of the Traveler community, familial status, genetic information, military or veteran status, or any other characteristic protected under applicable law. Where required, we will provide reasonable accommodation to applicants with known disabilities or chronic illnesses during the recruitment process, unless such accommodation would impose undue hardship.

Where necessary, we disclose salary ranges for roles in all countries in which we operate.  The final offer will be determined within the relevant range based on the country of employment, specific role level, and your skills and experience. In some countries, collective bargaining agreements (CBAs) may apply and influence certain elements of pay or benefits.  Regeneron offers a competitive and comprehensive total rewards package which may include, depending on country and role: annual bonuses or other incentive plans, equity awards, pension or retirement benefits, 401(k) company match, health and wellness programs, fitness centers, insurance benefits (e.g. medical, dental, vision, life and disability), paid time off, and family support benefits. For additional information about Regeneron benefits in the U.S., please visit https://careers.regeneron.com/en/working-at-regeneron/total-rewards/ . For other locations, additional information will be provided during the recruitment process.  If you have any questions, please speak with your recruiter.

Please be advised that at Regeneron, we believe we do our best work when we are together. For that reason, many roles are required to be performed on‑site. Please speak with your recruiter and hiring manager for more information about on‑site expectations for your role and location.

As part of the recruitment process, certain background checks may be conducted in accordance with the laws of the country where the position is based. The purpose of such checks is to verify certain information prior to the commencement of employment such as identity, right to work and educational qualifications.

For jobs in Canada: this posting is for an existing position.

Job details

Seniority
Manager
Function
Medical Affairs
Therapeutic area
Not listed
Location
Tokyo, Japan
Employment type
Full time

How this role compares

Computed from every other active Medical Affairs role in our database, not just this employer's listings.

We currently track 218 comparable Manager Medical Affairs roles across 70 biopharma companies.

218Comparable roles tracked
175Currently active
70Companies hiring similar roles
37Countries represented

Salary context

31 of 218 peers report a salary range (USD, annualized)

Peers share this role's job function and a matching or adjacent seniority level -- not necessarily the same therapeutic area or country.

This roleSubject Not listed on this posting
Lowest disclosed · Sr. Manager PSL&D Business Operations Lead · Pfizer $116,000/yr – $193,400/yr
Peer group range $154,700 – $258,000 (median $197,850)

Where these roles are based

Top locations among the 218 comparable roles

United States44
Japan30
Germany22
India20
China19
China's Mainland12

+ 31 more countries

Seniority mix

218 of 218 peers have a known seniority level

Manager124
Associate55
Associate Director39

Therapeutic area mix

75 of 218 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Oncology29
Immunology15
Cardiovascular / CVRM9
Vaccines & Infectious Disease6
Neuroscience5
Dermatology & Aesthetics4
Gastroenterology2
Rare Disease2
Respiratory2
Ophthalmology1

Similar opportunities

The closest matches from our peer group, ranked by how similar they are, not how well you'd qualify for them -- treat this as market context, not a guaranteed shortlist; a weak match is labeled as one below.

60%similar
Amgen K.K. Tokyo, Japan Manager
Same function Same seniority Same country
60%similar
Gilead Sciences K.K. Tokyo, Japan Manager
Same function Same seniority Same country
60%similar
Regeneron Japan KK Tokyo, Japan Manager
Same function Same seniority Same country
60%similar
Pfizer International Inc Tokyo, Japan Manager
Same function Same seniority Same country
60%similar
Pfizer Japan Inc. Tokyo, Japan Manager
Same function Same seniority Same country
60%similar
Pfizer R&D Japan G.K Tokyo, Japan Manager
Same function Same seniority Same country

How we calculate "similar"

No black box, no LLM guesswork: a deterministic score built from four normalized attributes. Here's this role's own peer group at different match levels, so you can see the mechanism, not just the result.

Every comparison starts from the same 100-point budget: 25 for working in the same function, 40 for the same therapeutic area, 20 for the same or adjacent seniority, 15 for the same country. A dimension we can't confirm on both sides contributes nothing, never a guess, never a free pass.

60%
Medical Advisor_ Cardiovascular (Manager)
Amgen K.K. · Tokyo, Japan · Manager
Function Therapeutic area Seniority Country
60%
[MA] Senior Medical Affairs Scientist Manager - Amyloidosis (Cardiology)
Pfizer International Inc · Tokyo, Japan · Manager
Function Therapeutic area Seniority Country
60%
[MA] Dermatology, MAS(Field) Manager
Pfizer Japan Inc. · Tokyo, Japan · Manager
Function Therapeutic area Seniority Country
60%
[R&D] スタディマネジャー/Japan Study Manager
Pfizer R&D Japan G.K · Tokyo, Japan · Manager
Function Therapeutic area Seniority Country
Unmatched or unknown dimensions score exactly the same: 0 points, never a partial guess. A role we know almost nothing about beyond its function bottoms out at 25%; it never inflates to 100% just because there's little to compare against. Seniority uses a defined ladder (Associate → Manager → Associate Director → Senior → Principal → Director → Senior Director → Executive/VP) so "Director" and "Senior Director" count as adjacent, but "Director" and "Executive/VP" do not.