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                              April 13, 2021

       Saurabh Saha, M.D., Ph.D.
       Chief Executive Officer
       Centessa Pharmaceuticals Ltd
       The Dorothy Hodgkin Building Babraham
       Research Campus
       Babraham
       Cambridge
       United Kingdom CB22 3FH

                                                        Re: Centessa
Pharmaceuticals Ltd
                                                            Draft Registration
Statement on Form S-1
                                                            Submitted March 15,
2021
                                                            CIK No. 0001847903

       Dear Dr. Saha:

              We have reviewed your draft registration statement and have the
following comments. In
       some of our comments, we may ask you to provide us with information so
we may better
       understand your disclosure.

              Please respond to this letter by providing the requested
information and either submitting
       an amended draft registration statement or publicly filing your
registration statement on
       EDGAR. If you do not believe our comments apply to your facts and
circumstances or do not
       believe an amendment is appropriate, please tell us why in your
response.

             After reviewing the information you provide in response to these
comments and your
       amended draft registration statement or filed registration statement, we
may have additional
       comments.

       Draft Registration Statement submitted March 15, 2021

       Letter from the CEO, page i

   1.                                                   To the extent that this
letter precedes the Summary, please balance the presentation and
                                                        clarify the discussion
of the asset centricity business model by explaining that you are a
                                                        newly incorporated
holding company that has acquired subsidiary companies.
 Saurabh Saha, M.D., Ph.D.
FirstName   LastNameSaurabh
Centessa Pharmaceuticals Ltd Saha, M.D., Ph.D.
Comapany
April       NameCentessa Pharmaceuticals Ltd
       13, 2021
April 213, 2021 Page 2
Page
FirstName LastName
Overview, page 1

2.       With reference to disclosures on pages 19 and 111, please revise page
1 of the Summary
         to clarify that Centessa only recently commenced operations after
simultaneously
         acquiring 100% equity interests in ten pre-revenue development-stage
biotechnology
         companies in January 2021. The Summary disclosure should also explain,
if true, that you
         were formed by Medicxi and that each of the Centessa Subsidiaries was
in Medicxi   s
         portfolio at the time of the acquisition.
3.       Please revise the Summary, where appropriate, to discuss how the ten
Centessa
         Subsidiaries were selected for acquisition. In this regard, it should
be clear whether
         Medicxi determined which of its portfolio companies would be part of
the new company
         and which ones would not. To the extent that Medicxi did not control
these subsidiary
         companies, please clarify whether arms-length negotiations were
conducted with each
         Centessa Subsidiary and whether negotiations were conducted with other
current or
         former Medicxi portfolio companies.
4.       We refer to the graphic on page 2. With reference to comments 2 and 3
above, please tell
         us the basis for your claim that your model attracts validated assets
and subject matter
         experts. Clarify the term    validated    in the paragraphs preceding
the graphic. Also, tell
         us why you show seven new companies in the future graphic as opposed
to a different
         number.

5.       We note your disclosure on page 2 that founder-subject matter experts
will be directly
         incentivized and appropriately supported to develop and bring
medicines to market. We
         also note your disclosure that your focus on data-driven
decision-making is aimed at
         enabling you to embrace and implement a "fail fast, and fail early"
philosophy to close
         programs expeditiously when data dictates. Please provide additional
disclosure regarding
         how you will incentivize the founder-subject matter experts to develop
and bring
         medicines to market and/or to "fail fast, and fail early."
6.       We refer to a February 16, 2021 Financial Times article which quotes
your former Chief
         Scientific Officer and reports that your scientists hold shares in
their unit and the overall
         umbrella company, and will leave if their project fails. Accordingly,
please tell us, and
         revise, as applicable, to discuss whether your founder-subject matter
experts and others
         hold equity stakes in the Centessa Subsidiaries or whether these
subsidiaries are wholly-
         owned by the parent.
7.       Please remove the reference on page 3 to "first-in-class" as this
statement implies an
         expectation of regulatory approval and is inappropriate given the
stage of development for
         your programs.
Our Pipeline, page 3

8.       With reference to your disclosure on page 127, please clarify in the
pipeline table or in the
 Saurabh Saha, M.D., Ph.D.
FirstName   LastNameSaurabh
Centessa Pharmaceuticals Ltd Saha, M.D., Ph.D.
Comapany
April       NameCentessa Pharmaceuticals Ltd
       13, 2021
April 313, 2021 Page 3
Page
FirstName LastName
         text immediately below it that the Phase 3 Alert study for lixivaptan
is not a registrational
         trial and that lixivaptan requires additional clinical studies prior
to submission of an NDA.
         Please also make similar revisions for the table on page 152.
9.       We note that PearlRiver Bio has one preclinical program that is an
"undisclosed" next
         generation EFGR inhibitor. Please explain to us why this program is
sufficiently material
         to your business to warrant inclusion in your pipeline table or revise
your table as
         appropriate.
10.      Please provide a brief narrative description of the significance of
the validation legend in
         your pipeline table. In particular, please disclose what is meant by
"precedented human
         activity" and "human genetics."
Our Operating Model, page 5

11.      We note your disclosure on page 15 indicating that Centessa
Subsidiaries have their own
         boards of directors and that conflicts of interest may result from a
corporate structure in
         which there are boards of directors at the parent and subsidiary
levels. Given your
         disclosure on page 98 that each Centessa Subsidiary is wholly-owned by
the Centessa
         parent entity, please explain why the Centessa Subsidiaries are
retaining separate boards
         of directors. Explain the duties and function of these subsidiary
boards, including what
         these boards can do in the the event that they disagree with the
sufficiency of resources
         provided by the parent or otherwise disagree with parent decisions
concerning how the
         subsidiary operates.
Prospectus Summary
Summary Financial Data, page 12

12.      Please revise to include the condensed historical predecessor and
successor financial
         statements as of and for the periods ended December 31, 2020 and
December 31, 2019.
         Alternatively, please tell us why you did not include this summary
historical financial
         data.
13.      Please revise to label your "Unaudited pro forma condensed combined
balance sheet data"
         as of December 31, 2020 as "condensed combined balance sheet data" as
of December 31,
         2020 since this financial information contains successor historical
condensed combined
         balance sheet data as well as pro forma balance sheet data.
Risk Factors
Some of our officers currently serve, and in the future may serve, as directors
or officers of our
Centessa Subsidiaries..., page 17

14.      Please expand your disclosure to identify any additional officers who
are also directors
         and officers of your subsidiaries and the subsidiaries on which they
serve. Please also
         clarify whether officers who serve as directors and/or officers of
subsidiaries also receive
         additional compensation for serving in such capacities.
 Saurabh Saha, M.D., Ph.D.
Centessa Pharmaceuticals Ltd
April 13, 2021
Page 4
Third-party claims of intellectual property infringement, misappropriation or
other violations,
page 44

15.      We note your disclosure that you are aware of an opposition proceeding
at the EPO
         brought by European Oppositions Limited against an EP patent owned by
the La Jolla
         Institute of Allergy and Immunology. Please revise to clarify whether
this opposition
         proceeding relates to one of the issued patents licensed to Capella.
If so, please also
         provide such disclosure on page 235.
Use of Proceeds, page 97

16.      Please revise to provide separate estimates for each of the three
candidates identified in
         the first bullet point and clarify whether the net proceeds from this
offering will allow you
         to complete the clinical trials you identify.

Share Capital Reorganization and Re-registration, page 99

17.      Please disclose here, or elsewhere, as appropriate, to describe the
materials terms of each
         contribution agreement. Also, file these agreements as exhibits
pursuant to Regulation S-
         K, Item 601.
Unaudited Pro Forma Condensed Combined Financial Information
Note 3. Estimated consideration and preliminary purchase price allocation.,
page 112

18.      We note that you determined the fair value of the 89,516,188 ordinary
shares issued as
         part of this transaction to be $2.92 per share utilizing the recent
transaction method and
         then used the option pricing method to allocate the fair value to the
ordinary shares. Please
         revise your filing to disclose in more detail the underlying
assumptions utilized in the
         transaction method and option pricing method including the discount
factor for lack of
         marketability and how these assumptions were derived.
19.      We note that you determined that the fair value of the contingent
value rights issued to
         Palladio shareholders was $22.7 million and that you applied a
cumulative probability of
         achieving the specified milestone and applied it to the potential
payout, which is currently
         expected during the first quarter of 2022. Please revise to disclose
in more detail the
         underlying assumptions utilized in this method and how these
assumptions were derived.
Funding Requirements, page 121

20.    With reference to your risk factor disclosure at the bottom of page 15,
please revise to
FirstName LastNameSaurabh Saha, M.D., Ph.D.
       discuss in greater detail the costs and timeline involved in building
out the larger
Comapany   NameCentessa
       organization.        Pharmaceuticals
                       In addition,           Ltdto clarify whether you
presently have the funds
                                    please revise
       necessary
April 13,         to do
          2021 Page   4 so.
FirstName LastName
 Saurabh Saha, M.D., Ph.D.
FirstName   LastNameSaurabh
Centessa Pharmaceuticals Ltd Saha, M.D., Ph.D.
Comapany
April       NameCentessa Pharmaceuticals Ltd
       13, 2021
April 513, 2021 Page 5
Page
FirstName LastName
Management's Discussion and Analysis of Financial Condition and Results of
Operations of
Centessa Pharmaceuticals Limited
Contractual Obligations and Other Commitments, page 123

21.      Please confirm whether the CVRs will be triggered when Palladio
initiates its ACTION
         Study, which you disclose is expected to commence by the first quarter
of 2022.
Management's Discussion and Analysis of Financial Condition and Results of
Operations of
Centessa Pharmaceuticals Limited
Critical Accounting Policies
Share-Based Compensation, page 123

22.      Once you have an estimated offering price or range, please explain to
us how you
         determined the fair value of the common stock underlying your equity
issuances and the
         reasons for any differences between the recent valuations of your
common stock leading
         up to the IPO and the estimated offering price. This information will
help facilitate our
         review of your accounting for equity issuances, including stock
compensation and
         beneficial conversion features. Please discuss with the staff how to
submit your response.
Licensing Arrangements, page 127

23.      Please expand the description of the Morphogen-IX License Agreement to
disclose the
         annual licensing fee, royalty term, and termination provisions.
Management's Discussion and Analysis of Financial Condition and Results of
Operations of The
Centessa Predecessor Group and ...
Results of Operations, page 133

24.      Given the importance of your research and development expenses to your
operations,
         please expand your discussion here and on pages 135 and 136 to provide
a break-out by
         key projects for your research and development expenses incurred
during each period
         presented.
Our Pipeline, page 151

25.      To the extent not already disclosed, please disclose when each of your
subsidiaries was
         founded and where its operations are based.
Pega-One, page 178

26.      Please disclose whether any of the adverse events observed in the
imgatuzumab clinical
         trials constituted a serious adverse event, and, if so, indicate
whether such event was
         deemed treatment related.
27.      We note that the disclosure in this section describes Roche's
development work on
         imgatuzumab. Please revise to disclose Pega-One's business activities
since acquiring the
 Saurabh Saha, M.D., Ph.D.
Centessa Pharmaceuticals Ltd
April 13, 2021
Page 6
         imgatuzumab license in April 2020, including any research and
development efforts
         undertaken to date.
Z Factor Limited, page 185

28.      We note that ZF887 is highlighted in your Summary pipeline table on
page 3.
         Accordingly, please expand your disclosure regarding ZF887 to describe
in more detail
         the research done to date and additional development plans for the
near-term future.
Capella Bioscience Ltd., page 195

29.      We note your disclosure on page 202 that Capella seeks to "rapidly"
develop CBS004 in
         SSc with a novel clinical design strategy, followed by SLE and CLE.
Please revise this
         disclosure to remove any implication that you will be successful in
commercializing your
         product candidates in a rapid or accelerated manner as such statements
are speculative.
Intellectual Property and License Agreements, page 231

30.      We note that for certain of your subsidaries' patent portfolios, you
disclose that the
         portfolios include claims directed to the subsidaries' disclosed
product candidates and
         preclinical assets, but do not clarify whether the issued U.S. and
foreign patents relate to
         such product candidates and programs. Please revise your disclosure to
clarify whether
         any of your issued patents include claims directed to your disclosed
product candidates
         and preclinical assets and, to the extent not already disclosed,
please disclose the type of
         patent protection you have (e.g., composition of matter, method, or
use).
31.      Please revise your disclosure regarding Pega-One's license agreement
with Roche to
         disclose the aggregate payments due upon meeting certain milestones.
Please also clarify
         whether Centessa's initial public offering would trigger the issuance
of equity to Roche
         and, if so, the terms of such issuance.
32.      We note your disclosure on page 17 indicating that each of the
Centessa Subsidiaries
         licenses intellectual property from third parties. Please revise to
disclose the terms of
         material license and collaboration agreement for the following
subsidiaries, or
         advise: Capella Bioscience, LockBody, Orexia Therapeutics, PearlRiver
Bio, and Janpix
         Limited.
33.    We refer to your disclosure on page 29 that "all of your current
programs are in-licensed
       from third parties." Please confirm that where you describe certain
patent portfolios as
       "owned," that these are not licensed intellectual property.
FirstName LastNameSaurabh Saha, M.D., Ph.D.
34.    With reference to your disclosure on pages 46 and 48 regarding
opposition proceedings
Comapany   NameCentessa
       against              Pharmaceuticals
               certain patents,               Ltd
                                please disclose here any contested proceedings
or third party
       claims  with respect
April 13, 2021 Page 6       to patents material to your subsidiaries.
FirstName LastName
 Saurabh Saha, M.D., Ph.D.
FirstName   LastNameSaurabh
Centessa Pharmaceuticals Ltd Saha, M.D., Ph.D.
Comapany
April       NameCentessa Pharmaceuticals Ltd
       13, 2021
April 713, 2021 Page 7
Page
FirstName LastName
Employees and Human Capital, page 256

35.      Please disclose the number of full-time employees you have. See Item
101(h)(4)(xii) of
         Regulation S-K.
Executive Compensation
Narrative Disclosure to Summary Compensation Table, page 266

36.      Please disclose whether the agreements with Messrs. Huntington,
Baglin, Morrell, Finlay,
         and Dr. Coleman have been amended or terminated as a result of the
January 2021
         business combinations.
Executive Compensation
Change in Control and other Severance Arrangement, page 270

37.      We note your description of the incentivization arrangements you have
with each of Z
         Factor, Morphogen-IX, and LockBody. Please disclose, where
appropriate, whether you
         have incentivization arrangements with each of your other subsidiaries
and, if so, the
         terms of such arrangements. Please also file these as exhibits to the
registration statement,
         or tell us why you believe this is not required.
Principal Shareholders, page 280

38.      Please revise footnotes 1-3 to identify the person or persons with
voting and/or dispositive
         control over the shares.
Exhibits

39.      Please file as an exhibit the employment agreement with your Chief
Financial Officer,
         Gregory Weinhoff.
General

40.      Please supplementally provide us with copies of all written
communications, as defined in
         Rule 405 under the Securities Act, that you, or anyone authorized to
do so on your behalf,
         present to potential investors in reliance on Section 5(d) of the
Securities Act, whether or
         not they retain copies of the communications.
 Saurabh Saha, M.D., Ph.D.
FirstName   LastNameSaurabh
Centessa Pharmaceuticals Ltd Saha, M.D., Ph.D.
Comapany
April       NameCentessa Pharmaceuticals Ltd
       13, 2021
April 813, 2021 Page 8
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FirstName LastName
       You may contact Tara Harkins at (202) 551-3639 or Dan Gordon at (202)
551-3486 if
you have questions regarding comments on the financial statements and related
matters. Please
contact Irene Paik at (202) 551-6553 or Joe McCann at (202) 551-6262 with any
other questions.



                                                          Sincerely,

                                                          Division of
Corporation Finance
                                                          Office of Life
Sciences
cc:      Edwin O   Connor - Goodwin Procter LLP