Select Committee on Science and Technology Minutes of Evidence


Annex M

CONFIDENTIALITY AGREEMENT

  This Confidentiality Agreement forms an integral part of your Contract of Employment.

    1.(a)  The Employee shall fully and promptly disclose to the Company all inventions, improvements, discoveries, ideas, processes, designs or coprights (herein collectively called "Inventions") whether patentable or not, that the Employee may create or develop, alone or with others, during the Employee's term of employment with the Company, and relating to his duties, pertaining to products, potential products, machines, processes, activities and business of the Company and of any and all of its Affiliates, the said Affiliates being defined as all companies at any time under the direct or indirect control of, or having a direct controlling interest in, British Bio-technology Group plc.

    (b)  Save as otherwise required by Law, all Inventions shall be the sole and absolute property of the Company, whether or not patent applications or registered design applications are filed thereon.

    (c)  The Employee shall, at the request and expense of the Company whether during or after the Employee's period of employment with the Company, furnish all assistance and execute any document, act or thing which may be required to obtain patents or registered designs on said Inventions in the United Kingdom and in foreign countries as necessary to vest title therto in the Company or its nominee, and to protect or enforce the Company's rights or those of its nominee under said patents or registered designs or any other rights arising out of said Inventions.

    2.(a)  The Employee shall not at any time during or subsequent to the Employee's employment use or disclose to others, without the consent of the Company, any Confidential Information in the possession of the Company or of any of its Affiliates (as defined above), as owner or otherwise, of which the Employee becomes informed while employed by the Company. "Confidential Information" is defined as matters of a technical nature, such as know-how, formulae, secret processes or machines, inventions, research projects, laboratory notebooks, management information systems and computer programmes, and matters of a business nature such as information about costs, profits, markets, sales, plans for future development, lists of customers and any other information of a similar nature. Confidential information shall not include any information in the public domain other than through wrongful disclosure by the Employee or any other person.

    (b)  The Employeee shall not release any of the Company's or any of its affiliates' Confidential Information or that of any third party given to the Employee in the course of his employment. The Company will regard such unauthorised release of Confidential Information as a serious breach of the Employee's employment terms entitling the company to give summary notice of dismissal to the Employee.

    (c)  The Employee shall return promptly, and on request by the Company, any laboratory notebooks, published papers, written records, books, products, equipment or other Company property when requested to do so during employment. All Company property, including laboratory notebooks, management information systems and computer programmes, and matters of a business nature such as information about costs, profits, markets, sales, plans for future development, lists of customers and any other information of a similar nature not in the public domain, must be returned to the Company by the employee immediately on termination of employment.

  3.  Once an employee has left the Company there will exist a Restriction Period of 18 months during which:

    (a)  The Employee will not solicit in competition with the Company any customer or client who was a customer or client of the Company during his/her employment.

    (b)  The Employee will not induce, nor attempt to induce, any employee of the Company to leave and act for another Employer in a similar capacity in relation to the same field of work.

  4.  The restrictions herein are considered by the Employee to be reasonable for the protection of the Company's and its affiliates' legitimate intrerests.

Paul Littlewood, British Biotech

  

Dear Paul,

I acknowledge receipt of various letters from you and the cheque. I will address the points separately.

MINUTES OF DISCIPLINARY MEETING

  These are unacceptable because there are distortions of what I said and omissions which are too numerous to list. I stated at the start of the meeting, that it was my right to record the meeting and a tape would be a fair way of doing this. Not recording the meeting allows what was said to be obfuscated, which is what has happened. The disciplinary meeting was therefore clearly unfair and my dismissal was clearly unfair. Having said that, the distortions and omissions are too numerous to list, there is one omission to which I would draw your attention:

    —  I stated that in May last year it came to my attention that Peter Lewis had been failing to pass on appropriate warnings to the other executive directors and board about some pessimistic aspects of the emerging clinical trial data. I stated this to Keith. Keith told me these were serious allegations I was making about Peter Lewis and asked if I would be prepared to back them up in court. I said I would and put them in writing to him on 15 May. He told me he would fire Peter Lewis immediately. This never happened, but nor did the business plans change. At the end of May I phoned Sir John Raisman with my concerns. He told me that what Peter did was despicable, but that the company could not afford the scandal of firing him. He told me that while Keith was very optimistic he had great confidence in him. My concerns about the business plans and the management of the clinical trials continued from there on and increased.

  This vital aspect of my justification of my actions has clearly not been taken into account during the disciplinary process which is therefore unfair. I am also suspicious that this was not properly investigated by Cameron McKenna as I have not been allowed to see the report. I therefore intend to go to an industrial tribunal about this as is my right and I shall pursue the company for compensation for unfair dismissal and unjustified summary dismissal and stigma as far as I can. I shall also wish to take into account my stock options in looking for compensation. I shall start proceedings for an industrial tribunal on Friday if I have not heard from you and I shall continue to take legal advice on all aspects of the case as it develops.

CONFIDENTIALITY

  I have spoken to various people at different times on different matters including confidential information, but not improperly disclosed confidential information to them. My actions have been justified, because I have suspected the stock market has been misled and my actions have been in the public best interest as well as the company's best long term interest. Furthermore my actions and events demonstrate that I never wanted this in the media, but to be resolved behind closed doors. On the occasions when I have spoken to the press, it has always been in response to company press activity, including the original derogatory statements at the time of my suspension, leaking of the Cameron McKenna report and the misrepresentation of this as a fair and independent investigation into my grievances and other company statements. These people are Perpetual, Mercury Asset Management, Kleinwort Benson, Jane Henderson, Paul Durman of the Times, Nils Pratley of Sunday Business and Jonathan Guthrie of the Financial Times. In addition, last night I contacted the SEC and an FDA officer. I now undertake not to disclose any confidential information as requested.

  I request, that in order to save me buying a new car to transport my children around, you allow me to continue to use the Audi, until such time as these difficulties are resolved. It remains my intention to return to work at British Biotech in an organisation with rational business plans and people and I still consider that this can be achieved. I remain the best qualified person available to direct the programmes on marimastat and lexipafant.

Yours sincerely

Andrew Millar

25 April 1998

MEMORANDUM
To:Peter Lewis From:Andy Millar
Paul Littlewood
Peter Brown
Peter McCann
Greg Hockel
Bob Blakie
Neil Graham
Russ Smith
cc:Keith McCullaghDate: 13 October 1994
James Noble
Alan Drummond


RE: INTRA-PERITONEAL ADVERSE EFFECTS AND BATIMASTAT

  It has been reported by Dr Mike Hawkins of Georgetown University Hospital, Washington that patient No 005 in study D02/IVB/307 underwent laparotomy for small bowel obstruction on 9 October 1994.

  This patient had advanced ovarian cancer without evidence of widespread peritoneal disease apart from two nodules on the stomach which were removed and no ascites at laparoscopy. It is significant that during placement of the intra-peritoneal catheter on 28 July 1994 prior to first administration of batimastat on8 March1994 that puncture of the gallbladder occurred "without sequelae". Batimastat was administered at a dose of 1,200 mg/M2 at four weekly intervals. After the first dose, the patient developed a pyrexia of 102F and had abdominal tenderness. She had also developed abdominal distension and ascites was drained. She went on to develop increasing abdominal distension and tenderness after the third administration of batimastat which did not settle with conservative resuscitation.

  At laparotomy, the patient was found to have a large mass of white "elephant skin" material 2-3 mm thick densely adherent to multiple loops of small bowel in the right upper quadrant. It was also adherent to the parietal peritoneum. The material appeared to be some form of concretion of batimastat. Careful dissection over 2-3 hours freed all the bowel which was found to be "pristine", in particular it was free of any signs of malignancy. There was one nodule in the transverse mesocolon distal from the site of the concretion.

  A sample of the material has been sent to British Biotech for analysis for batimastat content, but the assumption is that this represents a concretion of batimastat with inflammatory protein or other substances. The placement of the intraperitoneal catheter in the right upper quadrant and the finding of the white material confined to the same area indicates that in this patient without ascites batimastat was not distributed freely around the peritoneal cavity and the vehicle and dextrose used to administer it presumably was absorbed and left the batimastat to precipitate.

  It is not possible to judge accurately the extent to which the inadvertent gall bladder puncture contributed to the findings in this patient. It is important to note that not only did this patient not have ascites, but she has also received the largest total amount of drug administered to a human to date.

  The report from Dr Hawkins is pertinent to the report from Professor Kerr in Birmingham where patient No 63 in study D02/IVB/309, who had advanced ovarian adenocarcinoma with ascites was dosed with batimastat on 18 August 1994 and was re-admitted with vomiting on 26 August 1994. Small bowel obstruction failed to resolve with conservative management and laparatomy was performed on 16 September 1994. At laparotomy the bowel was found to be stuck together with a dense "super-glue"-like exudate (consultant surgeon's description). Histopathology revealed that the exudate showed typical features of adenocarcinoma.

  In Professor Smyth's first study there were two cases of sub-acute intestinal obstruction which settled with conservative management. It is not known whether these represented the natural history of the disease, a fibrous reaction or other "tumour agglutinating reaction" caused by the pharmacological effect of batimastat, a physical irritant effect of batimastat or any other mechanism.

  Examination of the current preliminary data of patients in study D02/IVB/309 (30 patient II ascites study) reveals that a high proportion have reported abdominal pain, vomiting or bowel disturbance. The dose here was 1 g/m2. These effects could be due to tumour, a physical irritant effect of batimastat or sub-acute bowel obstruction. It is probably not possible to determine which without a controlled comparative study.

  At present, the data in the non-ascitic abdomen are very preliminary; however the findings in patient 005 are clear. A reasonable explanation is that the volume of vehicle is inadequate to disperse the drug adequately throughout the peritoneal cavity and as the vehicle is rapidly absorbed through the normal peritoneum batimastat precipitates. It is then combining with exudative protein to form an adhesive concretion which is impairing normal gut motility. If this is the mechanism then this might well occur in other patients with normal peritoneal cavities if similar doses and methods of delivery are used.

  It is noteworthy that the AUC for this patient No 005's blood levels has been relatively low compared to those for the ascites patients in general and one other "non-ascites" patient from Georgetown. This would be consistent with the batimastat going in to a non-bioavailable form such as this apparent concretion. The data are scanty at this stage, but it is my impression that the blood levels in the non-ascites patients are lower than the ascites patients and that we are not seeing dose proportionality. This may indicate that the dry peritoneum's ability to keep batimastat in a biologically available state is being exceeded.

  The current blood levels appear high compared to the IC50 although free drug levels are not known. Dose reduction is a possibility for overcoming the problem of concretions and still maintaining adequate blood levels. Increasing the volume of vehicle and using physical movement to achieve wider dispersion also seems attractive. Methods for increasing dwell time (high molecular weight dextran) should also be reconsidered.

  These findings have implications for the current clinical research programme:

    1.  We do not now have adequate data or confidence to broaden the programme in the non-ascitic abdomen using the current dose in the protocol of 1,000 mg/m2. These studies, all in the US, should be put on hold. We should inform the FDA and the clinical investigators of this decision.

  Action Greg Hockel and Peter McCann.

  2.  All patients in all clinical studies including the ascites studies should be informed that there is a risk of gastrointestinal obstruction as an element of informed consent.

  Action self (write letter to investigators), Peter Brown and UK/US CRAs).

  3.  We should consider ways of acting in the best interests of patient 005. For example determining what benefit she m7ay have received from administration of batimastat, eg discuss progression and CA125 levels.

  Action self (discuss with Mike Hawkins and James Barter). Peter McCann and Paul Littlewood (consideration of legal situation).

  4.  Revise current protocol with Mike Hawkins to explore lower doses and larger volumes of infusate.

  Action self.

  5.  Discuss situation with UK investigators involved with dry abdomen studies and take similar action to US.

  Action self and Peter Brown.

Implications for ascites phase III programme

  The situation with respect to ascites is less clear at present, but based on the current data the risk to patients is less than for non-ascites patients, on the other hand if the drug is effective and renders the abdomen dry then repeated administration might produce the same effect. It therefore seems that the repeated dosing proposed in the European and Australian protocols should be looked at again.

  The situation should become clearer with a little more time as patients progress through study 309 and data comes in house over the few weeks (see below).

  The dose of 1,000 mg/m2 produces adequate blood levels (with the caveat that free levels and tissue distribution have not yet been determined). It is therefore possible that dose reduction would increase tolerability and maintain efficacy particularly if the main effect is topical. We already have lower dose levels (500 and 250 mg/m2) in the European and Australian protocols. It may be worth reconsidering a lower dose level in the UK study although this may be time consuming. Unless the 309 indicates that the dose is definitely too high on the grounds of safety there is no reason to change the dose of 1,000 mg/m2. If the dose does appear too high then we might need a further pilot study at a lower dose. However, based on John Smyth's first 24 patients and current impressions this will not be the case.

  It seems prudent to proceed cautiously in order not to risk the malignant ascites project. The current situation will be reviewed with John Smyth on 2 November. I predict that around that time it will become clear that it is appropriate to proceed with the UK ascites study without much change, if any to the current format. On the other hand, it seems imprudent at this stage to widen recruitment to 60 different hospitals throughout Europe and Australia. In the initial stages we should restrict the UK study to 10 or 15 centres to keep the data under control and reviewable.

Implications for the pleural effusion study

  There seems to be no adverse implications for the treatment of pleural effusion. Particulate matter and pleurodesis are part of standard therapy and there are no problems akin to bowel obstruction in the pleural cavity. Furthermore the possible need for dose reduction in ascites is in no way disadvantageous. We will proceed to expand this programme.

  Action: Peter Brown.

CentrePatient Start2 Month CRF in-house
0101  9 June   9 August
Beattie02  7 July   7 September
0314 July 14 September
0415 July 15 September
0518 August 18 Octember
0618 August 18 Octember
07  ? September   ? November
08  ? September   ? November
0220  6 May   6 JulyYES*
Miles21  6 May   6 JulyYES
22  9 May   9 JulyYES*
2310 May 10 JulyYES*
24  9 June 9 August
25  2 August   2 October
2622 September 22 November
0330  8 September   8 November
Carmich31  9 September   9 November
3223 September 23 November
0440  4 July   4 SeptemberYES*
Coleman4112 July 12 September
4228 July 28 September
43  1 August   1 OctoberYES*
4425 August 25 October
055020 May 20 July
Perren5128 July 28 SeptemberYES*
52  3 August   3 October
5328 September 28 November
066115 June 15 AugustYES*
Kerr62  8 July   8 SeptemberYES*
6313 August 13 OctoberYES*
6416 September 16 NovemberYES*
6529 September 29 November
66  6 October   6 December
0770  4 October   4 December
Green71  6 October   6 December


  35 Patients entered.

  11 CRFs In-House (10 of which are for patients who withdrew before day 28).

  10 Additional CRFs to be collected at sites now.

    4 Further CRFs by end October.

British Biotech Plc

Cancer drug batimastat starts pivotal Phase III trials and new oral cancer drug, BB-2516, starts human clinical testing

HIGHLIGHTS

  British Biotech announces the start of pivotal Phase III efficacy trials with its new cancer drug, batimastat, and the start of human clinical testing of its new oral anti-cancer drug, BB-2516.

Batimastat

    —  Batimastat is the first of a new class of drug for the treatment of cancer.

    —  Batimastat has satisfactorily completed a Phase II study in 40 patients with late stage abdominal cancer.

    —  Phase III is the final stage of clinical testing prior to applying for European marketing approval.

    —  British Biotech is aiming to file a European Marketing Authorisation Application for batimastat by the end of the first quarter of 1996.

    —  Batimastat is an injectable drug.

BB-2516

    —  BB-2516 is of the same class of drug as batimastat and has similar anti-cancer activity, but is designed to be an oral drug which can be taken by mouth.

    —  BB-2516 is being administered to 12 healthy volunteers.

    —  The Phase I trial will investigate the absorption and tolerability of the drug.

    —  The first trials of BB-2516 in cancer patients are scheduled to start in the second quarter of 1995.

  British Biotech owns full commercial rights to both batimastat and BB-2516 and the company intends to develop and market both products itself in Europe and North America.

  Commenting on today's news, Dr Keith McCullagh, Chief Executive Officer of British Biotech, said "Both batimastat and BB-2516 are progressing through product development with exceptional speed. The commencement of multi-centre Phase III trials of batimastat announced today confirms that British Biotech is on schedule to achieve its target of a European registration submission for batimastat early in 1996. The start of human clinical trials with BB-2516 is also important because this new second generation MMP inhibitor has the potential to become the company's most substantial product, revolutionising the treatment and prospects of a wide range of cancer patients at all stages of disease."

Batimastat Phase III study design

  The European Phase III study programme currently comprises two separate multi-centre clinical trials in patients with malignant ascites, a serious complication of late stage ovarian and other abdominal cancers. The first trial (the "UK study") has now started and is being conducted at approximately 20 hospitals in the UK. The second trial (the "Continental European study") will commence early in the New Year and will be conducted at approximately 20 hospitals in Germany, France, Italy, the Netherlands, Belgium and Switzerland.

The UK study

  The UK study will enrol 150 patients and compare batimastat treatment following abdominal fluid drainage with a control group receiving drainage treatment alone. In this study, 100 patients will receive a single 1000mg/m2 dose of batimastat with a second, equal dose to be administered on the first reaccumulation of fluid requiring drainage. The control group of 50 patients will receive no treatment other than drainage and a diuretic. Both groups will be followed in parallel for 84 days.

Continental European study

  The Continental European study, due to start in the first quarter of 1995, will also enrol 150 patients and will compare batimastat treatment with a wider range of alternative treatments for malignant ascites, including intraperitoneal chemotherapy. In this study, patients will be randomised into three 50-patient groups. Patients will receive either a single 1000mg/m2 or a 500mg/m2 dose of batimastat with a second, equal dose to be administered on the first reaccumulation. The control group of 50 patients will receive no treatment other than intraperitoneal chemotherapy or a diuretic.

Clinical endpoints

  Both batimastat studies will measure the frequency and quantity of ascitic fluid drainage and will also assess cancer progression via tumour size (by CT scan), quality of life and, for ovarian cancer patients, plasma levels of CA125.

BB-2516

  BB-2516 is British Biotech's second potential drug in the MMPI field. In preclinical testing, BB-2516 has similar anti-tumour activity to batimastat, but has the added advantage that it is well absorbed when taken by mouth. The Phase I trial being announced today is therefore of great significance to British Biotech, since, if it confirms the good oral absorption and safety profile suggested by pre-clinical studies, British Biotech will consider BB-2516 to be its leading product in terms of market potential, based on the number of patients suitable for treatment and the likely duration.

  The Phase I trial of BB-2516 has started in the United Kingdom and will enrol 12 healthy volunteers; it is designed to test the absorption and tolerability of BB-2516. If the Phase I trial is successful, the first trials in cancer patients are scheduled to start in the second quarter of 1995 in both Europe and the USA.

  BB-2516 is the first orally active compound of its class to commence human clinical trials for cancer. It is designed to slow down and prevent the spread of a wide range of cancers. Based on pre-clinical data, drugs of this class could be useful in treating most solid tumours, including breast, lung, colorectal, prostate, ovarian and gastric carcinomas. There are currently almost 5 million patients with these tumours in Europe and North America alone.

Batimastat and BB-2516

  Batimastat and BB-2516 are both drugs belonging to the class of matrix metalloproteinase inhibitors (MMPIs). Batimastat was the first MMPI to enter human clinical trials. The compounds, however, differ in some important respects, as follows:

    —  Batimastat and BB-2516 are different chemical compounds covered by different patent applications.

    —  Batimastat is administered by injection into the peritoneal or pleural cavity.

    —  BB-2516 is formulated as a capsule to be taken by mouth.

    —  Batimastat is designed as a treatment for late stage cancers and is initially targeted at malignant ascites and pleural effusion.

    —  BB-2516 is designed for potential use as a chronic therapy, administered from the first detection of cancer. Most existing anti-cancer therapies are too toxic for prolonged treatment.

    —  Batimastat is now in the final stage of clinical testing (Phase III); BB-2516 has commenced initial clinical trials (Phase I).

  If trials with both drugs are successful, British Biotech will allocate its resources in this field as follows:

    —  Clinical trials with batimastat will focus on malignant ascites and pleural effusion, two indications where an injectable product is preferred.

    —  Clinical trials with BB-2516 will focus on patients with rapidly advancing but earlier stage cancers.

Background to MMPIs and cancer therapy

  Batimastat and BB-2516 are inhibitors which block the action of matrix metalloproteinases, enzymes that destroy connective material between cells and allow cancers to spread and grow. British Biotech believes that it is currently the only company with matrix metalloproteinase inhibitors (MMPIs) undergoing human clinical trials in cancer.

  The potential advantages of MMPIs over existing cancer therapies are:

    —  Unlike traditional cancer treatments, MMPIs are not cytotoxic drugs and hence are not toxic to normal tissue.

    —  MMPIs act by blocking the biological mechanism by which tumours spread and grow. This mechanism is common to most solid cancers.

Background

  British Biotech plc, founded in 1986, combines approaches in molecular biology and synthetic chemistry to develop new therapeutic agents for the treatment of cancer. In addition, the company is pursuing research in inflammatory, vascular and viral diseases, particularly AIDS. The company has recently established a new subsidiary, Neures Limited, to investigate the role of metalloproteinase inhibitors in neuro-inflammatory diseases. British Biotech, based in Oxford, England, is listed on the London Stock Exchange and quoted on NASDAQ under the symbol BBIOY. A US subsidiary, British Biotech Inc., was established in Annapolis, Maryland, in December 1993.


 
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Prepared 14 September 1998