Exhibit 4.17



|                                   |  |     
|---------------------------------- |  | ----
|NOVOGEN LIMITED ABN 37 063 259
754 |  | LOGO

6 September 2016

Ms Kate
Hill

Sabio Solutions Pty Limited

ABN 65 612 360 862

XXXX

Dear Kate

Re: Letter of Appointment as Interim Company Secretary

I am pleased to confirm your appointment as Interim Company Secretary with Novogen Group (Novogen). As previously discussed with you, this Letter
Agreement (Agreement) formalises Novogens engagement to work with you and serves as binding Agreement between you and Novogen.



|1. | Services
|-- | --------

Your commencement date will be 6 September 2016 (Commencement
Date).

You will report to the Chairman of the Board of Directors (Chairman) and Chief Executive Officer (CEO) of the
Novogen Group. Additionally, you will be liaising directly with the Management team of Novogen and the Board of Directors.

The purpose of
your appointment is to provide company secretarial services via Sabio Solutions Pty Ltd (an entity of which you are a Director) to Novogen.

In addition to the Duties and Responsibilities listed in the Schedule, you will also provide corporate governance guidance and advice to the
Chairman and CEO (Services).



|2. | Terms of appointment
|-- | --------------------

Novogen and you acknowledge that this Agreement is not an
employment agreement and that you will not be entitled to receive any benefits given to employees of Novogen.

The appointment is for a
duration of 6 months and is extendable by mutual agreement, starting on Commencement Date as set out in section 1.

You are expected to
work two (2) days per week, for a total of fifteen (15) hours. You may be required to work additional hours from time to time.

In the event you undertake work for a third party within the Biotech sector you are required to notify the Company in advance of making a
commitment to a third party. You agree not to undertake work with a third party which would directly put you into conflict with Novogen.

Your appointment will be reviewed by the CEO and the Chairman on or around the
1st January 2017.



Letter of Appointment
 Novogen Limited (ACN 063 259 754)



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LOGO



Your appointment may be extended by mutual agreement or terminated as per section 9 of the
Agreement.



|3. | Fees and Expenses
|-- | -----------------

Basic Fee

You will be paid a basic fee of $10,000 per month for the Services rendered, as detailed in the Schedule, paid on a monthly basis during the
period of appointment, upon receipt of a valid invoice.

Additional Services

For any additional services that the Chairman or the CEO may request you to provide, from time to time, you will be paid at an hourly rate of
$200 per hour. All additional services must be listed in an invoice, including the matters worked on and the number of hours allocated to each matter.

Please note that all fees in this section 3 are exclusive of Good and Services Tax (GST), as imposed by the A New Tax System (Goods and
Services Tax) Act 1999 (Cth).

Expenses

Novogen will reimburse you of all reasonable expenses incurred in the performance of the Services.

For all material expenses, you will require prior approval in writing from the CEO.

Invoices

Sabio
Solutions Pty Ltd must provide a valid invoice to Novogen the Services rendered each month during the Term, addressed to the Chief Financial Officer, payable within 15 days by Novogen.

The invoice must be sent to Accounts@novogen.com



|4. | Authority and Representation
|-- | ----------------------------

For the purpose of your Duties and Responsibilities, as
set out in the Schedule of this Agreement, you are given the authority to represent and act on behalf of Novogen.

The powers given to you
in this section 4 remain, at any time during your appointment, subject to the Chairmans and CEOs supervision and approval.

The Board may alter, change or amend, at their discretion, the powers given to you in this section 4 at any time during your appointment.



|5. | Meetings and Reports
|-- | --------------------

At the request of the Chairman and/or the CEO you may be asked, as
necessary, to attend by teleconference a meeting in whole or in part.

You must provide written reports to the Chairman and CEO when
required. The reports should capture all the relevant information in relation to the Services.



Letter of Appointment
 Novogen Limited (ACN 063 259 754)



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LOGO



|6. | Confidentiality
|-- | ---------------

Confidential Information means all information concerning
Novogen, its business methods and any affiliated entity, their technologies, policies, marketing strategies, Intellectual Property and any other information relating to the affairs of the Company.

Without limiting or derogating from in any way any rule of law or equity, you must not without the prior written consent of Novogen publish or
divulge any Confidential Information to any person unless such publication or disclosure is made in the normal course of your duties.

You
must, following Novogens request, sign a confidentiality agreement containing provisions similar to the provisions in this section 6 in favour of any member of Novogen.

This section 6 survives termination of your appointment with respect to any information until such information is no longer regarded as
Confidential Information.



|7. | Intellectual Property
|-- | ---------------------

Intellectual Property means all industrial and
intellectual property rights throughout the world, including trademarks, logos, service marks, trade names, business names, copyrights, designs, patents, inventions, processes and other technical know-how (including extraction and manufacturing
know-how), secret information and other rights in industrial or intellectual property and applications for them or licence agreements or other arrangements under which a person has the right to use any of them.

You must assign to Novogen all Intellectual Property, created in the course of your appointment, or by any use of the Novogens
facilities, resources or Intellectual Property.

This section 7 survives termination of your appointment.



|8. | Trading Restriction
|-- | -------------------

You are prohibited to trade in the Companys securities during
the Term of your appointment, unless it has been expressly authorised by the Chairman and CEO.

You must confirm all approved trades in
securities once settled with the CEO in a timely fashion.



|9. | Termination
|-- | -----------

Either party may terminate the Agreement, provided that a notice of 4 weeks
is given in writing. If the notice is to be given during the Term where less than 4 weeks remain, the notice will equate half the time remaining until the end of the Term.



Letter of Appointment
 Novogen Limited (ACN 063 259 754)



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LOGO



Congratulations. We believe this appointment will form the basis of a mutually rewarding relationship.

Yours sincerely,

Dr James Garner

Managing Director, Chief Executive Officer

By signing this
Letter Agreement, you agree to the terms and conditions as set out in this letter and its Schedule,



|                                       
|---------------------------------------
|                                       
|Catherine Hill                         
|Director, Sabio Solutions Pty Ltd
Date:



Letter of Appointment
 Novogen Limited (ACN 063 259 754)



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LOGO



SCHEDULE

Duties and Responsibilities



|A. | Perform the duties and responsibilities of a Company Secretary as required by the Corporations Act (CA), the Companys Constitution, the Australian Securities Exchange (ASX) Listing Rules, the Securities
Exchange Commission (SEC) and NASDAQ rules - as applicable - and any other relevant legislation or regulation, such as:
|-- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (1) | ensure that the Company complies with its statutory obligations under any relevant laws and regulations;
| | --- | --------------------------------------------------------------------------------------------------------



| | (2) | statutory records
| | --- | -----------------



| | i. | maintain registers
| | -- | ------------------



| | ii. | ensure requisite retention of documents and records;
| | --- | ----------------------------------------------------



| | (3) | ensure lodgement of statutory forms/returns and reporting under the CA, ASX and other relevant legislation/regulation, including,
| | --- | ---------------------------------------------------------------------------------------------------------------------------------



| | i. | half-yearly and annual accounts
| | -- | -------------------------------



| | ii. | annual return
| | --- | -------------



| | iii. | change in Directors, secretaries
| | ---- | --------------------------------



| | (4) | ensure compliance with the continuous disclosure requirements of the CA and the ASX Listing Rules,
| | --- | ----------------------------------------------------------------------------------------------------



| | i. | lodgement of Company announcements
| | -- | ----------------------------------



| | ii. | coordination of disclosure requirements under ASX Listing Rules
| | --- | ---------------------------------------------------------------



| | iii. | act as main contact for ASX;
| | ---- | ----------------------------



| | (5) | ensure compliance with the continuous disclosure requirements of SEC and NASDAQ Market watch rules,
| | --- | -----------------------------------------------------------------------------------------------------



| | i. | Edgarisation and filing of Company announcements
| | -- | ------------------------------------------------



| | ii. | coordination of disclosure requirements under SEC and NASDAQ MarketWatch
| | --- | ------------------------------------------------------------------------



| | iii. | act as main contact for NASDAQ;
| | ---- | -------------------------------



| | (6) | Board meetings
| | --- | --------------



| | i. | arrange/co-ordinate
| | -- | -------------------



| | ii. | set agenda
| | --- | ----------



| | iii. | compile and circulate papers to Directors prior to meetings
| | ---- | -----------------------------------------------------------



| | iv. | take minutes
| | --- | ------------



| | v. | initiate and direct action to give practical effect to decisions;
| | -- | -----------------------------------------------------------------



| | (7) | record (and advise ASIC/ASX where necessary) declarations/conflicts of interest of Directors, including in relation to securities held in the Company;
| | --- | ------------------------------------------------------------------------------------------------------------------------------------------------------



Letter of Appointment
 Novogen Limited (ACN 063 259 754)



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LOGO



| | (8) | assist with/attend to signing of contracts and other documentation;
| | --- | -------------------------------------------------------------------



| | (9) | ensure adherence with the Companys Constitution;
| | --- | -------------------------------------------------



| | (10) | carry out other functions, if any, required of the Company Secretary by the Constitution;
| | ---- | -----------------------------------------------------------------------------------------



| | (11) | assist the Chairman and Directors in the conduct of meetings and their directorial and governance obligations and responsibilities.
| | ---- | -----------------------------------------------------------------------------------------------------------------------------------



|B. | Carry out other duties related to the corporate administration of the Company, being:
|-- | -------------------------------------------------------------------------------------



| | (1) | establish a timetable of corporate actions required during the year pursuant to CA (and ASX listing rules where applicable);
| | --- | ----------------------------------------------------------------------------------------------------------------------------



| | (2) | prepare a report to the Board of Directors meetings covering such areas as,
| | --- | ----------------------------------------------------------------------------



| | i. | share/shareholder statistics
| | -- | ----------------------------



| | ii. | disclosure reports/ASIC filings/ASX releases
| | --- | --------------------------------------------



| | iii. | Directors interests
| | ---- | --------------------



| | iv. | changes in applicable laws/regulations;
| | --- | ---------------------------------------



| | (3) | manage the corporate governance framework,
| | --- | ------------------------------------------



| | i. | prepare charters for committees
| | -- | -------------------------------



| | ii. | write corporate governance report
| | --- | ---------------------------------



| | iii. | prepare a corporate governance/policy manual for Directors/ management
| | ---- | ----------------------------------------------------------------------



| | iv. | prepare corporate governance statement as required by the ASX Listing Rules;
| | --- | ----------------------------------------------------------------------------



| | (4) | annual/half-yearly accounts,
| | --- | ----------------------------



| | i. | assist CFO with compilation
| | -- | ---------------------------



| | ii. | provide information for Directors Reports & Notes
| | --- | --------------------------------------------------



| | iii. | ensure timely lodgement with ASIC/ASX;
| | ---- | --------------------------------------



| | (5) | annual report,
| | --- | --------------



| | i. | prepare sections covering ASIC/ASX requirements
| | -- | -----------------------------------------------



| | ii. | generally assist with compilation
| | --- | ---------------------------------



| | iii. | ensure timely lodgement with ASIC/ASX and arrange distribution to shareholders;
| | ---- | -------------------------------------------------------------------------------



| | (6) | general meetings,
| | --- | -----------------



| | i. | arrange AGM (and any other extraordinary general meetings)
| | -- | ----------------------------------------------------------



| | ii. | draft and give due notice
| | --- | -------------------------



| | iii. | prepare agenda
| | ---- | --------------



| | iv. | compile briefing notes for Chairman to conduct meeting
| | --- | ------------------------------------------------------



| | v. | manage proxy votes, corporate representatives
| | -- | ---------------------------------------------



| | vi. | take minutes;
| | --- | -------------



| | (7) | guidance to Directors and management on various matters such as (to the extent not otherwise provided by professional advisers) CA/ASX listing rules;
| | --- | -----------------------------------------------------------------------------------------------------------------------------------------------------



Letter of Appointment
 Novogen Limited (ACN 063 259 754)



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LOGO



| | (8) | arrange issuance, allotment, notification under CA (and ASX listing where applicable) of shares & issues pursuant to option plans,
| | --- | ----------------------------------------------------------------------------------------------------------------------------------



| | (9) | address specific shareholder relations/enquiries,
| | --- | -------------------------------------------------



| | (10) | liaise with stakeholders, such as professional advisers in relation to various corporate matters, and
| | ---- | -----------------------------------------------------------------------------------------------------



| | (11) | other matters as reasonably required by Directors or the CEO from time to time.
| | ---- | -------------------------------------------------------------------------------



Letter of Appointment
 Novogen Limited (ACN 063 259 754)