Exhibit 4.7

4 December 2014

Triaxial Pharmaceuticals Pty Ltd (Triaxial)

Dear Shareholders,

Amendment to
Convertible Note Deed Poll

I refer to the Convertible Note Deed Poll (Deed) signed by Novogen Limited
(Novogen or Company) on the 4thof November 2013,
which superseded the precedent Loan Agreement between Triaxial shareholders and Novogen.

The Deed in which you are referred to as Convertible
Note Holders (Note Holders) was signed by Novogen with the intention to extinguish the liability created by the Loan Agreement and transform your interest as creditor into an equity interest in Novogen, provided that the Company achieved
defined milestones established in the schedule of the Deed (Milestone).

However, it appears that the Companys auditors, Grant
Thorton, have formed the view that some clauses in the Deed are at the origin liability. Clause 2.7(a)(ii), 2.8 and 4 (Liability Clauses) create a liability by qualifying the Convertible Note as a debt and by allowing you to redeem for cash
the remaining value of your Convertible Note that has not been converted yet, if after 3 months of achieving a Milestone the convertible note has not been converted into the corresponding amount of equity as set out by the Milestone.

The Liability Clauses maintain the liability of the Company towards the Note Holders and affects considerably the debt of the Company.

Considering the recent letter received from Nasdaq (See Novogen Received Nasdaq Deficiency Notice announced on the
12thof November 2014), the Company needs to increase its
equity to regain compliance with Nasdaq listing rule.

The Liability Clauses affect directly Novogens equity and this is why I propose
that the Deed Poll is amended by deleting these clauses to finally extinguish the debt component of the transaction.

A Deed of Amendment
(Amendment) has been prepared and is attached with this letter.

Please read it carefully and if you agree to the proposed Amendment,
sign the Approval Page of this letter where your name is indicated.

Once the approval of all the Note Holders has been collected, the Company
will sign the Amendment.

You can contact me at any time if you need clarification regarding this letter or the Amendment.



|                 
|-----------------
|Yours faithfully,
|                 
|LOGO             
|Dr. Graham Kelly 
|Chairman and CEO 
|Novogen Limited  

NOVOGEN LTD  ACN 063 259 754

16-20 Edgeworth David Ave, Hornsby, NSW, 2077 | P: +61 (0) 2 9476 0344 - F: +61 (0) 2 9476 0388 | www.novogen.com



---

Approval Page

Please indicate on this page if you are for or against the Amendment of the Deed as mentioned in the above letter.



|                  |  |     |  |        
|----------------- |  | --- |  | -------
|NOTE HOLDER       |  | FOR |  | AGAINST
|Dr. Andrew Heaton |  |     |  |        



|                          
|--------------------------
|                          
|Signature                 
|                          
|                          
|Witness signature and name



|                                                |  |     |  |        
|----------------------------------------------- |  | --- |  | -------
|NOTE HOLDER                                     |  | FOR |  | AGAINST
|D&G Brown Investments Pty Ltd  ACN 156 213 660 |  |     |  |        



|                                            
|--------------------------------------------
|                                            
|Authorised representative signature and name
|                                            
|                                            
|Authorised representative signature and name



|                                       |  |     |  |        
|-------------------------------------- |  | --- |  | -------
|NOTE HOLDER                            |  | FOR |  | AGAINST
|Aquagolf Pty Limited  ACN 007 154 976 |  |     |  |        



|                                            
|--------------------------------------------
|                                            
|Authorised representative signature and name
|                                            
|                                            
|Authorised representative signature and name



|                                              |  |     |  |        
|--------------------------------------------- |  | --- |  | -------
|NOTE HOLDER                                   |  | FOR |  | AGAINST
|Phytose Corporation Pty Ltd  ACN 058 868 527 |  |     |  |        



|                                            
|--------------------------------------------
|                                            
|Authorised representative signature and name
|                                            
|                                            
|Authorised representative signature and name



---

Approval Page

Please indicate on this page if you are for or against the Amendment of the Deed as mentioned in the above letter.



|                    |  |     |  |        
|------------------- |  | --- |  | -------
|NOTE HOLDER         |  | FOR |  | AGAINST
|Mr. David Archibald |  |     |  |        



|                          
|--------------------------
|                          
|Signature                 
|                          
|                          
|Witness signature and name



|              |  |     |  |        
|------------- |  | --- |  | -------
|NOTE HOLDER   |  | FOR |  | AGAINST
|Mr. John Thom |  |     |  |        



|                          
|--------------------------
|                          
|Signature                 
|                          
|                          
|Witness signature and name

NOVOGEN LTD  ACN 063 259 754

16-20 Edgeworth David Ave, Hornsby, NSW, 2077 | P: +61 (0) 2 9476 0344 - F: +61 (0) 2 9476 0388 | www.novogen.com



---

|                                                                                     |  |     
|------------------------------------------------------------------------------------ |  | ----
|NOVOGEN LIMITED 16-20
Edgeworth David Ave Hornsby NSW 2077
Australia ACN 063 259 754 |  | LOGO

DEED OF AMENDEMENT TO THE CONVERTIBLE NOTE DEED POLL

DATE4 December 2014

DETAILS:

By: Novogen Limited (Company)



|          |  |                                                                   
|--------- |  | ------------------------------------------------------------------
|ABN       |  | 37 063 259 754                                                    
|          | 
|Address   |  | Suite 1.02, Level 1, 16-20 Edgeworth David Ave, Hornsby, NSW, 2077
|          | 
|Fax       |  | (02) 9878 0055                                                    
|          | 
|Attention |  | Company Secretary                                                 

IN FAVOUR OF: Each of the persons listed below (the Noteholders),



|                                                |  |                                                     
|----------------------------------------------- |  | ----------------------------------------------------
|Dr. Andrew Heaton                               |  | Unit 111, 38 McEvoy Street, Alexandria, NSW 2015    
|                                                | 
|D&G Brown Investments Pty Ltd  ACN 156 213 660 |  | c/- WCM House 65 Hill Street, Roseville, NSW, 2069
|                                                | 
|Aquagolf Pty Limited  ACN 007 154 976          |  | PO BOX 4421 Winmalee, NSW, 2777                     
|                                                | 
|Phytose Corporation Pty Ltd  ACN 058 868 527   |  | c/- WCM House 65 Hill Street, Roseville, NSW, 2069
|                                                | 
|Mr. David Archibald                             |  | 29 Pindari Road, City Beach, WA 6015                
|                                                | 
|Mr. John Thom                                   |  | Lantegles, Manor Drive, St Ives, Cornwall, UK     

BACKGROUND



|A. | The Company signed a Convertible Note Deed Poll (Deed Poll) on the 4thof November 2013.
|-- | ---------------------------------------------------------------------------------------



|B. | The Company wishes to amend the Deed Poll by deleting specific clauses that are the source of liability for the Company.
|-- | ------------------------------------------------------------------------------------------------------------------------



|C. | The Company has requested the approval of the Noteholders to amend the Deed Poll via a letter (Approval Letter) and the Noteholders have approved the amendment
by returning a copy of the Approval Letter.
|-- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

This Deed of Amendment witnessesas follows:



|1. | Definition and Interpretation
|-- | -----------------------------



|1.1 | Original Employment Agreement definitions to apply
|--- | --------------------------------------------------

DEED OF AMENDMENT TO CONVERTIBLE NOTE DEED POLL - NOVOGEN LTD  ABN 37 063 259 754



---

Subject to clauses 1.2 and 2.1 of this Deed, a term that is not defined in this Deed but
which is defined in clause 1.1 of the Deed Poll has the same meaning given to that term in the Deed Poll, unless the context requires otherwise.



|1.2 | Specific defined terms
|--- | ----------------------

In this Deed, the following definitions apply unless the context requires otherwise.

Deed Poll Agreement means the Convertible Note Deed Poll signed by the Company on the 4thof November 2013.



|2. | Amendment of Deed Poll
|-- | ----------------------



|2.1 | Clause 1.1
|--- | ----------

Clause 1.1 of the
Deed Poll is amended by deleting the following terms:



| |  |  | The definition of Redemption; and
| | - |  | ---------------------------------



| |  |  | The definition of Redemption Date.
| | - |  | ----------------------------------



|2.2 | Clause 2.7(a)(ii)
|--- | -----------------

Clause
2.7(a)(ii), General terms of issue of Notes of the Deed Poll is deleted in its entirety.



|2.3 | Clause 2.8
|--- | ----------

Clause 2.8,
Status of Notes of the Deed Poll is deleted in its entirety.

For the avoidance of doubt, the Notes do not
constitute a debt owed by the Company.



|2.4 | Clause 4
|--- | --------

Clause 4,
Redemption of the Deed Poll is deleted in its entirety.

For the avoidance of doubt, this Deed cancels the right
for the Noteholders to redeem in Immediately Available Funds any of the remaining unConverted Notes that the Noteholders hold respectively. Any other reference in the Deed Poll in relation to the redemption of the Notes is null and void.

EXECUTED as a Deed on the date set out at the commencement of this Deed.

Executed by NOVOGEN LIMITED - ABN 37 063 259 754:



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|Director |  |  |  | Director/Secretary
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|Name     |  |  |  | Name