Tinnitus after Carboplatin

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Hi,

I'm currently undergoing treatment for tonsil cancer - T2N1M0.  Treatment plan is 6 weeks radiotherapy and 2 cycles of chemotherapy.  Due to pre-existing mild tinnitus the chemo is Carboplatin at 5AUC weeks 1 and weeks 5. I'm currently at the start of week 5 of treatment.

About 3 days after the first chemo cycle I developed a spike in my tinnitus which has persisted for the last 28 days. Maybe about a 20% increase from baseline, making it much more intrusive.  My single lymph node has resonded well to treatment so far, shrinking between 50-75%.  I discussed with my oncologist and he said due to tinnitus and good response I could either omit the 2nd dose, or go for a reduced AUC 2.5 dose.

I arranged for the reduced dose for cycle 2, but then when I went yesterday (26th march) I got quite stressed about the possiblity of the tinnitus worsening and I didn't go through with the cycle.  Now i'm a bit stressed about having missed that 2nd cycle - although I think the benefit of it is quite marginal. Maybe 6-8% for chemo overall, with most of that in the 1st dose. So maybe the benefit of the reduced 2nd dose might be 1-3%?  I feel like i'm being a bit flippant with the cancer - but the tinnitus is quite impactful day to day and I really don't want it to get any worse than it is now.

Just wondered if anyone else missed the 2nd dose due to toxicity issues - or if people have experiences of tinnitus after chemo and whether it lasted or went away?

Thanks

  • Just wondered if anyone else missed the 2nd dose

    Hi. Don’t stress. Lots of people miss that second dose. 
    I know Hazel missed one out of three. Percentage wise it makes very little difference whereas tinnitus is a major side effect to put up with. 

    Dani 

    Base of tongue cancer. T2N0M0 6 weeks Radiotherapy finished January 2019

    I BLOGGED MY TREATMENT 

    Macmillan Support Line -  0808 808 00 00 7 days a week between 8am-8pm

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  • Hazel aka RadioactiveRaz 

    My blog is www.radioactiveraz.wordpress.com  HPV 16+ tonsil cancer Now  7years  post treatment. 35 radiotherapy 2 chemo T2N2NM.Happily getting on with living always happy to help

    2 videos I’ve been involved with raising awareness of HNC and HPV cancers 

    https://www.instagram.com/merckhealthcare/reel/DBs8Y0niJ8N/

  • I had carboplatin.  It is not the normal chemo, but I did not want the potential of tinnitus so I insisted.  I do have tinnitus but it is a pulsating rather than ringing one.  Probably caused by the RT rather than chemo.  I've had CT head to look into any damage but thankfully nothing is obviously damaged.  The tinnitus is annoying rather than debilitating.

    In the end I was due to have 6 sessions of carboplatin but the last was cancelled at the tumour had responded well prior to that final dose and they thought it not essential.  2 years down the road and I am fine with no sign of the treatment being any less effective as a result.

    Peter
    See my profile for more details of my convoluted journey
  • Thanks Dani. Yeah the percentage it adds does seem to be pretty low, although my oncologist wasn't able to quantify it for me precisely.

    I think my worry is that i'm not doing 'everything' I can to kick the cancer - and on one hand that feels irresponsible.  But on the other hand I feel that my body is giving me a clear signal that it is sensitive to the Carboplatin (which is supposed to be the less ototoxic platinum option) and i'm therefore very concerned any further dosing will make things worse, or possibly permanent.  There do seem to be lots of folks with tinnitus that fades away a few months after treatment - but I think that are an equal number when it's become permanent.  As you say, the tinnitus is very difficult to deal with, and it feels like a real dice roll. 

  • Thanks Hazel, sounds like you made the right decision and i'm super happy for you that the wooshing sound in your ear cleared up.  The constant sound can be quite debilitating over time.  How long did that take to go?

    I think in my case my oncologist would prefer I completed the 2nd dose - but he's ok with me reducing or not doing it because of my good response to the treatment so far and because of my concerns. I think that's part of why i'm worried, because the de-escalation feels like it's coming more from me.

  • Thanks Peter - yeah you did the right thing taking the carbo.  The usual cisplatin chemo is highly ototoixic with maybe double the chance to affect hearing from what i've read.  Carbo was positioned for me as very low risk from a hearing/tinnitus perspective, so I'm super disappointed that I've had this reaction to it.  I guess if you had 5 out of 6 doses you must have been around the 80% of complete treatment mark.  I'd be stopping more at 50%, which feels a chunk lower.  But it's good to know that reduction didn't have any impact on your outcomes.   

  • Hi  , do you have a numbers on benefit of chemo on top of RT in terms of OS or recurrence rates? 

  • Hi  , do you have a numbers on benefit of chemo on top of RT in terms of OS or recurrence rates? 

    My oncologist quoted just over 6% to five years 

    I didn’t have any and I’m still here seven years later. ( No nodal spread on MRI though)

    There is no enhanced effect of chemotherapy on distant metastasis 

    Dani 

    Base of tongue cancer. T2N0M0 6 weeks Radiotherapy finished January 2019

    I BLOGGED MY TREATMENT 

    Macmillan Support Line -  0808 808 00 00 7 days a week between 8am-8pm

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  • Is that because  you elected not to have it, or was it not standard of care for you because you were lower risk?

  • With no nodal spread that made me lower risk. 
    I’ve just asked one of my team about chemotherapy and recurrence. If chemotherapy is prescribed refusal is associated with  higher than 50% chance of early recurrence. 
    That’s not the same as there being a scenario when chemotherapy is a choice and the decision is left up to the patient. 

    Dani 

    Base of tongue cancer. T2N0M0 6 weeks Radiotherapy finished January 2019

    I BLOGGED MY TREATMENT 

    Macmillan Support Line -  0808 808 00 00 7 days a week between 8am-8pm

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